Merge branch 'next' into lua-slopes

# Conflicts:
#	src/lua_maplib.c
This commit is contained in:
Monster Iestyn 2018-10-20 18:31:06 +01:00
commit 7d4e27937d
868 changed files with 180582 additions and 29299 deletions

60
.circleci/config.yml Normal file
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@ -0,0 +1,60 @@
version: 2
jobs:
build:
working_directory: /root/SRB2
docker:
- image: debian:jessie
environment:
CC: ccache gcc -m32
PKG_CONFIG_LIBDIR: /usr/lib/i386-linux-gnu/pkgconfig
LIBGME_CFLAGS: -I/usr/include
LIBGME_LDFLAGS: -lgme
CCACHE_COMPRESS: true
WFLAGS: -Wno-unsuffixed-float-constants
GCC49: true
#- image: ubuntu:trusty
# environment:
# CC: ccache gcc -m32
# PKG_CONFIG_LIBDIR: /usr/lib/i386-linux-gnu/pkgconfig
# LIBGME_CFLAGS: -I/usr/include
# LIBGME_LDFLAGS: -lgme
# CCACHE_COMPRESS: true
# WFLAGS: -Wno-unsuffixed-float-constants
# GCC48: true
steps:
- run:
name: Add i386 arch
command: dpkg --add-architecture i386
- run:
name: Update APT listing
command: apt-get -qq update
- run:
name: Support S3 upload
command: apt-get -qq -y install ca-certificates
- restore_cache:
keys:
- v1-SRB2-APT
- run:
name: Install SDK
command: apt-get -qq -y install git build-essential nasm libpng12-dev:i386 libsdl2-mixer-dev:i386 libgme-dev:i386 gettext ccache wget gcc-multilib upx
- save_cache:
key: v1-SRB2-APT
paths:
- /var/cache/apt/archives
- checkout
- run:
name: Clean build
command: make -C src LINUX=1 clean
- restore_cache:
keys:
- v1-SRB2-{{ .Branch }}-{{ checksum "objs/Linux/SDL/Release/depend.dep" }}
- run:
name: Compile
command: make -C src LINUX=1 ERRORMODE=1 -k
- store_artifacts:
path: /root/SRB2/bin/Linux/Release/
destination: bin
- save_cache:
key: v1-SRB2-{{ .Branch }}-{{ checksum "objs/Linux/SDL/Release/depend.dep" }}
paths:
- /root/.ccache

16
.gitattributes vendored
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@ -13,22 +13,6 @@
*.manifest -crlf -whitespace
# Patches
/tools/SDL-1.2.14-gc/SDL-1.2.14-gc.patch -whitespace
# LibPNG
/libs/libpng-src/CMakeLists.txt -whitespace
/libs/libpng-src/libpng-1.2.*.txt -whitespace
/libs/libpng-src/libpng.3 -whitespace
/libs/libpng-src/*.c -whitespace
# Zlib
/libs/zlib/contrib/amd64/amd64-match.S -whitespace
/libs/zlib/contrib/delphi/zlibd32.mak -crlf -whitespace
/libs/zlib/contrib/gcc_gvmat64/gvmat64.S -whitespace
/libs/zlib/contrib/minizip/MiniZip64_Changes.txt -whitespace
/libs/zlib/contrib/minizip/MiniZip64_info.txt -whitespace
/libs/zlib/contrib/pascal/zlibd32.mak -whitespace
/libs/zlib/nintendods/Makefile -whitespace
/libs/zlib/nintendods/README -whitespace
/libs/zlib/watcom/watcom_f.mak -crlf -whitespace
/libs/zlib/watcom/watcom_l.mak -crlf -whitespace
#Appveyor
/appveyor.yml -crlf -whitespace
# Other

6
.gitignore vendored
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@ -13,3 +13,9 @@ Win32_LIB_ASM_Release
*.dgb
*.debug
*.debug.txt
/bin/VC10/
/objs/VC10/
*.user
*.db
*.opendb
/.vs

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@ -2,14 +2,220 @@ language: c
sudo: required
dist: trusty
env:
- CFLAGS=-Wno-absolute-value -Werror
compiler:
- gcc
- clang
matrix:
include:
- os: linux
addons:
apt:
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- gcc-4.4
compiler: gcc-4.4
#gcc-4.4 (Ubuntu/Linaro 4.4.7-8ubuntu1) 4.4.7
- os: linux
addons:
apt:
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- gcc-4.6
compiler: gcc-4.6
#gcc-4.6 (Ubuntu/Linaro 4.6.4-6ubuntu2) 4.6.4
- os: linux
addons:
apt:
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- gcc-4.7
compiler: gcc-4.7
#gcc-4.7
- os: linux
compiler: gcc
#gcc (Ubuntu 4.8.4-2ubuntu1~14.04) 4.8.4
- os: linux
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- gcc-4.8
compiler: gcc-4.8
#gcc-4.8 (Ubuntu 4.8.5-2ubuntu1~14.04.1) 4.8.5
- os: linux
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- gcc-7
compiler: gcc-7
env: WFLAGS="-Wno-tautological-compare -Wno-error=implicit-fallthrough -Wimplicit-fallthrough=3"
#gcc-7 (Ubuntu 7.2.0-1ubuntu1~14.04) 7.2.0 20170802
- os: linux
compiler: clang
#clang version 3.5.0 (tags/RELEASE_350/final)
- os: linux
addons:
apt:
sources:
- llvm-toolchain-precise-3.5
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- clang-3.5
compiler: clang-3.5
#Ubuntu clang version 3.5.0-4ubuntu2~trusty2 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
- os: linux
addons:
apt:
sources:
- llvm-toolchain-precise-3.6
- ubuntu-toolchain-r-test
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- clang-3.6
compiler: clang-3.6
#Ubuntu clang version 3.6.2-svn240577-1~exp1 (branches/release_36) (based on LLVM 3.6.2)
- os: linux
addons:
apt:
sources:
- llvm-toolchain-precise-3.7
- ubuntu-toolchain-r-test
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- clang-3.7
compiler: clang-3.7
#Ubuntu clang version 3.7.1-svn253571-1~exp1 (branches/release_37) (based on LLVM 3.7.1)
- os: linux
addons:
apt:
sources:
- llvm-toolchain-precise-3.8
- ubuntu-toolchain-r-test
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- clang-3.8
compiler: clang-3.8
#clang version 3.8.1-svn271127-1~exp1 (branches/release_38)
- os: linux
addons:
apt:
sources:
- llvm-toolchain-precise-3.9
- ubuntu-toolchain-r-test
packages:
- libsdl2-mixer-dev
- libpng-dev
- libgl1-mesa-dev
- libgme-dev
- p7zip-full
- clang-3.9
compiler: clang-3.9
#clang version 3.9.X
# - os: linux
# addons:
# apt:
# sources:
# - llvm-toolchain-precise-4.0
# - ubuntu-toolchain-r-test
# packages:
# - libsdl2-mixer-dev
# - libpng-dev
# - libgl1-mesa-dev
# - libgme-dev
# - p7zip-full
# - clang-4.0
# compiler: clang-4.0
# #clang version 4.0.X
# - os: linux
# addons:
# apt:
# sources:
# - llvm-toolchain-precise-5.0
# - ubuntu-toolchain-r-test
# packages:
# - libsdl2-mixer-dev
# - libpng-dev
# - libgl1-mesa-dev
# - libgme-dev
# - p7zip-full
# - clang-5.0
# compiler: clang-5.0
# #clang version 5.0.X
# - os: osx
# osx_image: beta-xcode6.1
# #Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
# - os: osx
# osx_image: beta-xcode6.2
# compiler: gcc
# #Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
## - os: osx
## osx_image: beta-xcode6.3
## #I think xcode.6.3 VM is broken, it does not boot
# - os: osx
# osx_image: xcode6.4
# #Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
# - os: osx
# osx_image: xcode7
# #Apple LLVM version 7.0.0 (clang-700.0.72)
# - os: osx
# osx_image: xcode7.1
# #Apple LLVM version 7.0.0 (clang-700.1.76)
# - os: osx
# osx_image: xcode7.2
# #Apple LLVM version 7.0.2 (clang-700.1.81)
- os: osx
osx_image: xcode7.3
#Apple LLVM version 7.3.0 (clang-703.0.31)
allow_failures:
- compiler: clang-3.5
- compiler: clang-3.6
- compiler: clang-3.7
- compiler: clang-3.8
- compiler: clang-3.9
- compiler: clang-4.0
- compiler: clang-5.0
cache:
apt: true
ccache: true
directories:
- $HOME/srb2_cache
@ -23,11 +229,20 @@ addons:
- p7zip-full
before_script:
- mkdir -p $HOME/srb2_cache
- wget --verbose --server-response -c http://rosenthalcastle.org/srb2/SRB2-v2114-assets.7z -O $HOME/srb2_cache/SRB2-v2114-assets.7z
- 7z x $HOME/srb2_cache/SRB2-v2114-assets.7z -oassets
- wget --verbose --server-response -c http://rosenthalcastle.org/srb2/SRB2-v2115-assets-2.7z -O $HOME/srb2_cache/SRB2-v2115-assets-2.7z
- 7z x $HOME/srb2_cache/SRB2-v2115-assets-2.7z -oassets
- mkdir build
- cd build
- cmake ..
- export CFLAGS="-Wall -W -Werror $WFLAGS"
- export CCACHE_COMPRESS=true
- cmake .. -DCMAKE_BUILD_TYPE=Release
script: make
before_install:
- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update ; fi
- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install sdl2 sdl2_mixer game-music-emu p7zip; fi
- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install cmake||true; fi
- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then curl -O -L https://www.libsdl.org/release/SDL2-2.0.6.dmg; hdiutil attach SDL2-2.0.6.dmg; sudo cp -a /Volumes/SDL2/SDL2.framework /Library/Frameworks/; fi
- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then curl -O -L https://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-2.0.1.dmg; hdiutil attach SDL2_mixer-2.0.1.dmg; sudo cp -a /Volumes/SDL2_mixer/SDL2_mixer.framework /Library/Frameworks/; fi
- mkdir -p $HOME/srb2_cache
script: make -k

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@ -1,6 +1,6 @@
cmake_minimum_required(VERSION 3.0)
project(SRB2
VERSION 2.1.14
VERSION 2.1.20
LANGUAGES C)
if(${PROJECT_SOURCE_DIR} MATCHES ${PROJECT_BINARY_DIR})

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README.md Normal file
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@ -0,0 +1,23 @@
# Sonic Robo Blast 2
[![Build status](https://ci.appveyor.com/api/projects/status/399d4hcw9yy7hg2y?svg=true)](https://ci.appveyor.com/project/STJr/srb2)
[![Build status](https://travis-ci.org/STJr/SRB2.svg?branch=master)](https://travis-ci.org/STJr/SRB2)
[![CircleCI](https://circleci.com/gh/STJr/SRB2/tree/master.svg?style=svg)](https://circleci.com/gh/STJr/SRB2/tree/master)
[Sonic Robo Blast 2](https://srb2.org/) is a 3D Sonic the Hedgehog fangame based on a modified version of [Doom Legacy](http://doomlegacy.sourceforge.net/).
## Dependencies
- NASM (x86 builds only)
- SDL2 (Linux/OS X only)
- SDL2-Mixer (Linux/OS X only)
- libupnp (Linux/OS X only)
- libgme (Linux/OS X only)
Warning: 64-bit builds are not netgame compatible with 32-bit builds. Use at your own risk.
## Compiling
See [SRB2 Wiki/Source code compiling](http://wiki.srb2.org/wiki/Source_code_compiling)
## Disclaimer
Sonic Team Junior is in no way affiliated with SEGA or Sonic Team. We do not claim ownership of any of SEGA's intellectual property used in SRB2.

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SRB2.cbp

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SRB2_Debug.props Normal file
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@ -0,0 +1,28 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup Label="UserMacros" />
<PropertyGroup>
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<ItemDefinitionGroup>
<ResourceCompile>
<PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ResourceCompile>
<ClCompile>
<DebugInformationFormat>EditAndContinue</DebugInformationFormat>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<MinimalRebuild>true</MinimalRebuild>
<RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
<FunctionLevelLinking>true</FunctionLevelLinking>
<AssemblerOutput>All</AssemblerOutput>
<SmallerTypeCheck>false</SmallerTypeCheck>
<BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
</ClCompile>
<Link>
<GenerateDebugInformation>Debug</GenerateDebugInformation>
</Link>
</ItemDefinitionGroup>
<ItemGroup />
</Project>

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@ -0,0 +1,30 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup Label="UserMacros" />
<PropertyGroup>
<LinkIncremental>false</LinkIncremental>
</PropertyGroup>
<ItemDefinitionGroup>
<ClCompile>
<StringPooling>true</StringPooling>
<FunctionLevelLinking>true</FunctionLevelLinking>
<PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<Optimization>Full</Optimization>
<InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
<IntrinsicFunctions>true</IntrinsicFunctions>
<FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
</ClCompile>
<ResourceCompile>
<PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ResourceCompile>
<Link>
<ImageHasSafeExceptionHandlers>false</ImageHasSafeExceptionHandlers>
<GenerateDebugInformation>DebugFastLink</GenerateDebugInformation>
<OptimizeReferences>true</OptimizeReferences>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
</Link>
</ItemDefinitionGroup>
<ItemGroup />
</Project>

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@ -0,0 +1,46 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup Label="UserMacros" />
<PropertyGroup>
<OutDir>$(SolutionDir)bin\VC10\$(Platform)\$(Configuration)\</OutDir>
<IntDir>$(SolutionDir)objs\VC10\$(Platform)\$(Configuration)\$(ProjectName)\</IntDir>
</PropertyGroup>
<ItemDefinitionGroup>
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<PreprocessorDefinitions>HAVE_PNG;COMPVERSION;HAVE_BLUA;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;_WINSOCK_DEPRECATED_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<CompileAs>CompileAsC</CompileAs>
<BrowseInformation>true</BrowseInformation>
<TreatWarningAsError>true</TreatWarningAsError>
<EnablePREfast>false</EnablePREfast>
<SDLCheck>true</SDLCheck>
<DisableSpecificWarnings>4244;4267</DisableSpecificWarnings>
</ClCompile>
<Link>
<AdditionalDependencies>ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<SubSystem>Windows</SubSystem>
<RandomizedBaseAddress>false</RandomizedBaseAddress>
<GenerateDebugInformation>true</GenerateDebugInformation>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(PlatformTarget)'=='x86'">
<ClCompile>
<PreprocessorDefinitions>USEASM;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
<Link>
<ImageHasSafeExceptionHandlers>false</ImageHasSafeExceptionHandlers>
</Link>
<CustomBuild>
<Command>nasm -g -o $(IntDir)%(Filename).obj -f win32 "%(FullPath)"</Command>
<Message>Compiling %(Filename).nas with NASM...</Message>
<Outputs>$(IntDir)%(Filename).obj;%(Outputs)</Outputs>
</CustomBuild>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(PlatformTarget)'!='x86'">
<CustomBuild>
<LinkObjects>false</LinkObjects>
</CustomBuild>
</ItemDefinitionGroup>
<ItemGroup />
</Project>

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@ -1,69 +1,90 @@
version: 2.1.14.{branch}-{build}
version: 2.1.20.{branch}-{build}
os: MinGW
environment:
CC: i686-w64-mingw32-gcc
CC: ccache
CCACHE_CC: i686-w64-mingw32-gcc
WINDRES: windres
MINGW_SDK: c:\msys64\mingw32
SDL2_URL: http://libsdl.org/release/SDL2-devel-2.0.4-mingw.tar.gz
SDL2_ARCHIVE: SDL2-devel-2.0.4-mingw.tar
SDL2_MOVE: SDL2-2.0.4\i686-w64-mingw32
SDL2_MIXER_URL: https://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-devel-2.0.1-mingw.tar.gz
SDL2_MIXER_ARCHIVE: SDL2_mixer-devel-2.0.1-mingw.tar
SDL2_MIXER_MOVE: SDL2_mixer-2.0.1\i686-w64-mingw32
CFLAGS: -Wall -W -Werror -Wno-error=implicit-fallthrough -Wimplicit-fallthrough=3 -Wno-tautological-compare -Wno-error=suggest-attribute=noreturn
NASM_ZIP: nasm-2.12.01
NASM_URL: http://www.nasm.us/pub/nasm/releasebuilds/2.12.01/win64/nasm-2.12.01-win64.zip
UPX_ZIP: upx391w
UPX_URL: http://upx.sourceforge.net/download/upx391w.zip
CCACHE_EXE: ccache.exe
CCACHE_URL: http://alam.srb2.org/ccache.exe
CCACHE_COMPRESS: true
CCACHE_DIR: C:\Users\appveyor\.ccache
cache:
- SDL2-devel-2.0.4-mingw.tar.gz
- SDL2_mixer-devel-2.0.1-mingw.tar.gz
- nasm-2.12.01.zip
- upx391w.zip
- ccache.exe
- C:\Users\appveyor\.ccache
install:
#Download SDL2
- if not exist "%SDL2_ARCHIVE%.gz" appveyor DownloadFile "%SDL2_URL%" -FileName "%SDL2_ARCHIVE%.gz"
- 7z x -y "%SDL2_ARCHIVE%.gz" -o%TMP% >null
- 7z x -y "%TMP%\%SDL2_ARCHIVE%" -o%TMP% >null
- robocopy /S /xx /ns /nc /nfl /ndl /np /njh /njs %TMP%\%SDL2_MOVE% %MINGW_SDK% || exit 0
- ps: (Get-Content ([System.Environment]::ExpandEnvironmentVariables("%TMP%\%SDL2_MOVE%\bin\sdl2-config"))) | ForEach-Object { $_ -replace "/usr/local/cross-tools/i686-w64-mingw32", ([System.Environment]::ExpandEnvironmentVariables("%MINGW_SDK%")) } | Set-Content ([System.Environment]::ExpandEnvironmentVariables("%MINGW_SDK%\bin\sdl2-config"))
- ps: (Get-Content ([System.Environment]::ExpandEnvironmentVariables("%TMP%\%SDL2_MOVE%\lib\cmake\SDL2\sdl2-config.cmake"))) | ForEach-Object { $_ -replace "/usr/local/cross-tools/i686-w64-mingw32", ([System.Environment]::ExpandEnvironmentVariables("%MINGW_SDK%")) } | Set-Content ([System.Environment]::ExpandEnvironmentVariables("%MINGW_SDK%\lib\cmake\SDL2\sdl2-config.cmake"))
- ps: (Get-Content ([System.Environment]::ExpandEnvironmentVariables("%TMP%\%SDL2_MOVE%\lib\pkgconfig\sdl2.pc"))) | ForEach-Object { $_ -replace "/usr/local/cross-tools/i686-w64-mingw32", ([System.Environment]::ExpandEnvironmentVariables("%MINGW_SDK%")) } | Set-Content ([System.Environment]::ExpandEnvironmentVariables("%MINGW_SDK%\lib\pkgconfig\sdl2.pc"))
#Download SDL2_Mixer
- if not exist "%SDL2_MIXER_ARCHIVE%.gz" appveyor DownloadFile "%SDL2_MIXER_URL%" -FileName "%SDL2_MIXER_ARCHIVE%.gz"
- 7z x -y "%SDL2_MIXER_ARCHIVE%.gz" -o%TMP% >null
- 7z x -y "%TMP%\%SDL2_MIXER_ARCHIVE%" -o%TMP% >null
- robocopy /S /xx /ns /nc /nfl /ndl /np /njh /njs %TMP%\%SDL2_MIXER_MOVE% %MINGW_SDK% || exit 0
- ps: (Get-Content ([System.Environment]::ExpandEnvironmentVariables("%TMP%\%SDL2_MIXER_MOVE%\lib\pkgconfig\SDL2_mixer.pc")))| ForEach-Object { $_ -replace "/usr/local/cross-tools/i686-w64-mingw32", ([System.Environment]::ExpandEnvironmentVariables("%MINGW_SDK%")) } | Set-Content ([System.Environment]::ExpandEnvironmentVariables("%MINGW_SDK%\lib\pkgconfig\SDL2_mixer.pc"))
- if not exist "%NASM_ZIP%.zip" appveyor DownloadFile "%NASM_URL%" -FileName "%NASM_ZIP%.zip"
- 7z x -y "%NASM_ZIP%.zip" -o%TMP% >null
- robocopy /S /xx /ns /nc /nfl /ndl /np /njh /njs %TMP%\%NASM_ZIP% %MINGW_SDK%\bin nasm.exe || exit 0
- if not exist "%UPX_ZIP%.zip" appveyor DownloadFile "%UPX_URL%" -FileName "%UPX_ZIP%.zip"
- 7z x -y "%UPX_ZIP%.zip" -o%TMP% >null
- robocopy /S /xx /ns /nc /nfl /ndl /np /njh /njs %TMP%\%UPX_ZIP% %MINGW_SDK%\bin upx.exe || exit 0
- if not exist "%CCACHE_EXE%" appveyor DownloadFile "%CCACHE_URL%" -FileName "%CCACHE_EXE%"
- ccache -M 99M
- xcopy /Y /V /I ccache.exe %MINGW_SDK%\bin
configuration:
- SDL
- DD
matrix:
allow_failures:
- configuration: DD
before_build:
- set SDL_PKGCONFIG=%MINGW_SDK%\lib\pkgconfig\sdl2.pc
- set Path=%MINGW_SDK%\bin;%Path%
- i686-w64-mingw32-gcc --version
- mingw32-make --version
- set SRB2_MFLAGS=-C src MINGW=1 WARNINGMODE=1 NOASM=1 NOUPX=1 GCC53=1
- nasm -v
- upx -V
- ccache -V
- ccache -s
- set SRB2_MFLAGS=-C src MINGW=1 WARNINGMODE=1 GCC72=1 CCACHE=1 NOOBJDUMP=1
build_script:
- cmd: mingw32-make.exe %SRB2_MFLAGS% SDL=1 clean
- cmd: mingw32-make.exe %SRB2_MFLAGS% SDL=1 ERRORMODE=1
- cmd: mingw32-make.exe %SRB2_MFLAGS% %CONFIGURATION%=1 clean
- cmd: mingw32-make.exe %SRB2_MFLAGS% %CONFIGURATION%=1 ERRORMODE=1 -k
after_build:
- ccache -s
- cmd: git rev-parse --short %APPVEYOR_REPO_COMMIT%>%TMP%/gitshort.txt
- cmd: set /P GITSHORT=<%TMP%/gitshort.txt
- set BUILD_ARCHIVE=%APPVEYOR_REPO_BRANCH%-%GITSHORT%.7z
- set BUILD_ARCHIVE=%APPVEYOR_REPO_BRANCH%-%GITSHORT%-%CONFIGURATION%.7z
- set BUILDSARCHIVE=%APPVEYOR_REPO_BRANCH%-%CONFIGURATION%.7z
- cmd: 7z a %BUILD_ARCHIVE% bin\Mingw\Release -xr!.gitignore
- appveyor PushArtifact %BUILD_ARCHIVE%
- cmd: copy %BUILD_ARCHIVE% %BUILDSARCHIVE%
- appveyor PushArtifact %BUILDSARCHIVE%
test: off
deploy:
- provider: FTP
protocol: ftps
host:
secure: NsLJEPIBvmwCOj8Tg8RoRQ==
username:
secure: ejxi5mvk7oLYu7QtbYojajEPigMy0mokaKhuEVuDZcA=
password:
secure: Hbn6Uy3lT0YZ88yFJ3aW4w==
folder: appveyor
application:
active_mode: false
#deploy:
# - provider: FTP
# protocol: ftps
# host:
# secure: NsLJEPIBvmwCOj8Tg8RoRQ==
# username:
# secure: ejxi5mvk7oLYu7QtbYojajEPigMy0mokaKhuEVuDZcA=
# password:
# secure: Hbn6Uy3lT0YZ88yFJ3aW4w==
# folder: appveyor
# application:
# active_mode: false
# on:
# branch: master
# appveyor_repo_tag: true
on_finish:

2
bin/DC/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/Dos/Debug/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/Dos/Release/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/FreeBSD/Debug/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/FreeBSD/Release/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

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@ -1,3 +1,3 @@
/srb2sdl.exe
/srb2win.exe
/r_opengl.dll
*.exe
*.mo
r_opengl.dll

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@ -1,3 +1,3 @@
/srb2sdl.exe
/srb2win.exe
/r_opengl.dll
*.exe
*.mo
r_opengl.dll

2
bin/SDL/Debug/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/SDL/Release/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/ARMV4Dbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/ARMV4IDbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/ARMV4IRel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/ARMV4Rel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/ARMV4TDbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/ARMV4TRel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPS16Dbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPS16Rel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPSIIDbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPSIIRel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPSII_FPDbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPSII_FPRel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPSIVDbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPSIVRel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPSIV_FPDbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/MIPSIV_FPRel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/Release/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/SH3Dbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/SH3Rel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/SH4Dbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/SH4Rel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/X86Dbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/X86Rel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/emulatorDbg/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
bin/WinCE/emulatorRel/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
# DON'T REMOVE
# This keeps the folder from disappearing

2
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@ -6,16 +6,16 @@ find_path(GME_INCLUDE_DIR
NAMES gme.h
PATHS
${GME_PKGCONF_INCLUDE_DIRS}
/usr/include/gme
/usr/local/include/gme
"/usr/include/gme"
"/usr/local/include/gme"
)
find_library(GME_LIBRARY
NAMES gme
PATHS
${GME_PKGCONF_LIBRARY_DIRS}
/usr/lib
/usr/local/lib
"/usr/lib"
"/usr/local/lib"
)
set(GME_PROCESS_INCLUDES GME_INCLUDE_DIR)

View File

@ -1,4 +1,4 @@
@ECHO OFF
@echo off
set BRA=Unknown
set REV=illegal
@ -13,20 +13,20 @@ goto filwri
:gitrev
set GIT=%2
if "%GIT%"=="" set GIT=git
FOR /F "usebackq" %%s IN (`%GIT% rev-parse --abbrev-ref HEAD`) DO @SET BRA=%%s
FOR /F "usebackq" %%s IN (`%GIT% rev-parse HEAD`) DO @SET REV=%%s
for /f "usebackq" %%s in (`%GIT% rev-parse --abbrev-ref HEAD`) do @set BRA=%%s
for /f "usebackq" %%s in (`%GIT% rev-parse HEAD`) do @set REV=%%s
set REV=%REV:~0,8%
goto filwri
:svnrev
set BRA=Subversion
FOR /F "usebackq" %%s IN (`svnversion .`) DO @SET REV=%%s
for /f "usebackq" %%s in (`svnversion .`) do @set REV=%%s
set REV=r%REV%
goto filwri
:filwri
ECHO // Do not edit! This file was autogenerated > %1\comptime.h
ECHO // by the %0 batch file >> %1\comptime.h
ECHO // >> %1\comptime.h
ECHO const char* compbranch = "%BRA%"; >> %1\comptime.h
ECHO const char* comprevision = "%REV%"; >> %1\comptime.h
echo // Do not edit! This file was autogenerated > %1\comptime.h
echo // by the %0 batch file >> %1\comptime.h
echo // >> %1\comptime.h
echo const char* compbranch = "%BRA%"; >> %1\comptime.h
echo const char* comprevision = "%REV%"; >> %1\comptime.h

13
comptime.props Normal file
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@ -0,0 +1,13 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup Label="UserMacros" />
<PropertyGroup />
<ItemDefinitionGroup>
<PreBuildEvent>
<Command>"$(SolutionDir)comptime.bat" "$(ProjectDir).."</Command>
<Message>Getting revision number from the SCM system</Message>
</PreBuildEvent>
</ItemDefinitionGroup>
<ItemGroup />
</Project>

View File

@ -1,4 +1,4 @@
#!/bin/sh -e
#!/bin/bash -e
path="."
if [ x"$1" != x ]; then
path="$1"

3
debian/docs vendored
View File

@ -1,2 +1 @@
readme.txt
readme.txt
README.md

8
libs/.gitattributes vendored Normal file
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@ -0,0 +1,8 @@
#All
* -whitespace
# Zlib
/zlib/watcom/watcom_f.mak -crlf
/zlib/watcom/watcom_l.mak -crlf
#SDL2
/SDL2/docs/README-porting.md conflict-marker-size=32
# Other

21
libs/FMOD.props Normal file
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@ -0,0 +1,21 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup Label="UserMacros" />
<PropertyGroup>
<IncludePath>$(SolutionDir)libs\fmodex\inc;$(IncludePath)</IncludePath>
<LibraryPath>$(SolutionDir)libs\fmodex\lib;$(LibraryPath)</LibraryPath>
</PropertyGroup>
<ItemDefinitionGroup />
<ItemDefinitionGroup Condition="'$(PlatformTarget)'=='x64'">
<Link>
<AdditionalDependencies>fmodexL64_vc.lib;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(PlatformTarget)'=='x86'">
<Link>
<AdditionalDependencies>fmodexL_vc.lib;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemGroup />
</Project>

15
libs/SDL2.props Normal file
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@ -0,0 +1,15 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup Label="UserMacros" />
<PropertyGroup>
<IncludePath>$(SolutionDir)libs\SDL2\include;$(IncludePath)</IncludePath>
<LibraryPath>$(SolutionDir)libs\SDL2\lib\$(PlatformTarget);$(LibraryPath)</LibraryPath>
</PropertyGroup>
<ItemDefinitionGroup>
<Link>
<AdditionalDependencies>SDL2.lib;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemGroup />
</Project>

16
libs/SDL2/BUGS.txt Normal file
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@ -0,0 +1,16 @@
Bugs are now managed in the SDL bug tracker, here:
https://bugzilla.libsdl.org/
You may report bugs there, and search to see if a given issue has already
been reported, discussed, and maybe even fixed.
You may also find help at the SDL forums/mailing list:
https://discourse.libsdl.org/
Bug reports are welcome here, but we really appreciate if you use Bugzilla, as
bugs discussed on the mailing list may be forgotten or missed.

20
libs/SDL2/COPYING.txt Normal file
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@ -0,0 +1,20 @@
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.

53
libs/SDL2/CREDITS.txt Normal file
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@ -0,0 +1,53 @@
Simple DirectMedia Layer CREDITS
Thanks to everyone who made this possible, including:
* Cliff Matthews, for giving me a reason to start this project. :)
-- Executor rocks! *grin*
* Ryan Gordon for helping everybody out and keeping the dream alive. :)
* Gabriel Jacobo for his work on the Android port and generally helping out all around.
* Philipp Wiesemann for his attention to detail reviewing the entire SDL code base and proposes patches.
* Andreas Schiffler for his dedication to unit tests, Visual Studio projects, and managing the Google Summer of Code.
* Mike Sartain for incorporating SDL into Team Fortress 2 and cheering me on at Valve.
* Alfred Reynolds for the game controller API and general (in)sanity
* Jørgen Tjernø for numerous magical Mac OS X fixes.
* Pierre-Loup Griffais for his deep knowledge of OpenGL drivers.
* Julian Winter for the SDL 2.0 website.
* Sheena Smith for many months of great work on the SDL wiki creating the API documentation and style guides.
* Paul Hunkin for his port of SDL to Android during the Google Summer of Code 2010.
* Eli Gottlieb for his work on shaped windows during the Google Summer of Code 2010.
* Jim Grandpre for his work on multi-touch and gesture recognition during
the Google Summer of Code 2010.
* Edgar "bobbens" Simo for his force feedback API development during the
Google Summer of Code 2008.
* Aaron Wishnick for his work on audio resampling and pitch shifting during
the Google Summer of Code 2008.
* Holmes Futrell for his port of SDL to the iPhone and iPod Touch during the
Google Summer of Code 2008.
* Jon Atkins for SDL_image, SDL_mixer and SDL_net documentation.
* Everybody at Loki Software, Inc. for their great contributions!
And a big hand to everyone else who has contributed over the years.
THANKS! :)
-- Sam Lantinga <slouken@libsdl.org>

18
libs/SDL2/INSTALL.txt Normal file
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@ -0,0 +1,18 @@
The 32-bit files are in i686-w64-mingw32
The 64-bit files are in x86_64-w64-mingw32
To install SDL for native development:
make native
To install SDL for cross-compiling development:
make cross
Look at the example programs in ./test, and check out online documentation:
http://wiki.libsdl.org/
Join the SDL developer mailing list if you want to join the community:
http://www.libsdl.org/mailing-list.php
That's it!
Sam Lantinga <slouken@libsdl.org>

29
libs/SDL2/Makefile Normal file
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@ -0,0 +1,29 @@
#
# Makefile for installing the mingw32 version of the SDL library
CROSS_PATH := /usr/local/cross-tools
ARCHITECTURES := i686-w64-mingw32 x86_64-w64-mingw32
all install:
@echo "Type \"make native\" to install 32-bit to /usr"
@echo "Type \"make cross\" to install 32-bit and 64-bit to CROSS_PATH ($(CROSS_PATH))"
native:
make install-package arch=i686-w64-mingw32 prefix=/usr
cross:
for arch in $(ARCHITECTURES); do \
make install-package arch=$$arch prefix=$(CROSS_PATH)/$$arch; \
done
install-package:
@if test -d $(arch) && test -d $(prefix); then \
(cd $(arch) && cp -rv bin include lib share $(prefix)/); \
sed "s|^prefix=.*|prefix=$(prefix)|" <$(arch)/bin/sdl2-config >$(prefix)/bin/sdl2-config; \
chmod 755 $(prefix)/bin/sdl2-config; \
sed "s|^libdir=.*|libdir=\'$(prefix)/lib\'|" <$(arch)/lib/libSDL2.la >$(prefix)/lib/libSDL2.la; \
sed "s|^prefix=.*|prefix=$(prefix)|" <$(arch)/lib/pkgconfig/sdl2.pc >$(prefix)/lib/pkgconfig/sdl2.pc; \
else \
echo "*** ERROR: $(arch) or $(prefix) does not exist!"; \
exit 1; \
fi

13
libs/SDL2/README-SDL.txt Normal file
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@ -0,0 +1,13 @@
Please distribute this file with the SDL runtime environment:
The Simple DirectMedia Layer (SDL for short) is a cross-platform library
designed to make it easy to write multi-media software, such as games
and emulators.
The Simple DirectMedia Layer library source code is available from:
https://www.libsdl.org/
This library is distributed under the terms of the zlib license:
http://www.zlib.net/zlib_license.html

21
libs/SDL2/README.txt Normal file
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@ -0,0 +1,21 @@
Simple DirectMedia Layer
(SDL)
Version 2.0
---
https://www.libsdl.org/
Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting
with README.md
Enjoy!
Sam Lantinga (slouken@libsdl.org)

349
libs/SDL2/WhatsNew.txt Normal file
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@ -0,0 +1,349 @@
This is a list of major changes in SDL's version history.
---------------------------------------------------------------------------
2.0.7:
---------------------------------------------------------------------------
General:
* Added audio stream conversion functions:
SDL_NewAudioStream
SDL_AudioStreamPut
SDL_AudioStreamGet
SDL_AudioStreamAvailable
SDL_AudioStreamFlush
SDL_AudioStreamClear
SDL_FreeAudioStream
* Added functions to query and set the SDL memory allocation functions:
SDL_GetMemoryFunctions()
SDL_SetMemoryFunctions()
SDL_GetNumAllocations()
* Added locking functions for multi-threaded access to the joystick and game controller APIs:
SDL_LockJoysticks()
SDL_UnlockJoysticks()
* The following functions are now thread-safe:
SDL_SetEventFilter()
SDL_GetEventFilter()
SDL_AddEventWatch()
SDL_DelEventWatch()
General:
---------------------------------------------------------------------------
2.0.6:
---------------------------------------------------------------------------
General:
* Added cross-platform Vulkan graphics support in SDL_vulkan.h
SDL_Vulkan_LoadLibrary()
SDL_Vulkan_GetVkGetInstanceProcAddr()
SDL_Vulkan_GetInstanceExtensions()
SDL_Vulkan_CreateSurface()
SDL_Vulkan_GetDrawableSize()
SDL_Vulkan_UnloadLibrary()
This is all the platform-specific code you need to bring up Vulkan on all SDL platforms. You can look at an example in test/testvulkan.c
* Added SDL_ComposeCustomBlendMode() to create custom blend modes for 2D rendering
* Added SDL_HasNEON() which returns whether the CPU has NEON instruction support
* Added support for many game controllers, including the Nintendo Switch Pro Controller
* Added support for inverted axes and separate axis directions in game controller mappings
* Added functions to return information about a joystick before it's opened:
SDL_JoystickGetDeviceVendor()
SDL_JoystickGetDeviceProduct()
SDL_JoystickGetDeviceProductVersion()
SDL_JoystickGetDeviceType()
SDL_JoystickGetDeviceInstanceID()
* Added functions to return information about an open joystick:
SDL_JoystickGetVendor()
SDL_JoystickGetProduct()
SDL_JoystickGetProductVersion()
SDL_JoystickGetType()
SDL_JoystickGetAxisInitialState()
* Added functions to return information about an open game controller:
SDL_GameControllerGetVendor()
SDL_GameControllerGetProduct()
SDL_GameControllerGetProductVersion()
* Added SDL_GameControllerNumMappings() and SDL_GameControllerMappingForIndex() to be able to enumerate the built-in game controller mappings
* Added SDL_LoadFile() and SDL_LoadFile_RW() to load a file into memory
* Added SDL_DuplicateSurface() to make a copy of a surface
* Added an experimental JACK audio driver
* Implemented non-power-of-two audio resampling, optionally using libsamplerate to perform the resampling
* Added the hint SDL_HINT_AUDIO_RESAMPLING_MODE to control the quality of resampling
* Added the hint SDL_HINT_RENDER_LOGICAL_SIZE_MODE to control the scaling policy for SDL_RenderSetLogicalSize():
"0" or "letterbox" - Uses letterbox/sidebars to fit the entire rendering on screen (the default)
"1" or "overscan" - Will zoom the rendering so it fills the entire screen, allowing edges to be drawn offscreen
* Added the hints SDL_HINT_MOUSE_NORMAL_SPEED_SCALE and SDL_HINT_MOUSE_RELATIVE_SPEED_SCALE to scale the mouse speed when being read from raw mouse input
* Added the hint SDL_HINT_TOUCH_MOUSE_EVENTS to control whether SDL will synthesize mouse events from touch events
Windows:
* The new default audio driver on Windows is WASAPI and supports hot-plugging devices and changing the default audio device
* The old XAudio2 audio driver is deprecated and will be removed in the next release
* Added hints SDL_HINT_WINDOWS_INTRESOURCE_ICON and SDL_HINT_WINDOWS_INTRESOURCE_ICON_SMALL to specify a custom icon resource ID for SDL windows
* The hint SDL_HINT_WINDOWS_DISABLE_THREAD_NAMING is now on by default for compatibility with .NET languages and various Windows debuggers
* Updated the GUID format for game controller mappings, older mappings will be automatically converted on load
* Implemented the SDL_WINDOW_ALWAYS_ON_TOP flag on Windows
Linux:
* Added an experimental KMS/DRM video driver for embedded development
iOS:
* Added a hint SDL_HINT_AUDIO_CATEGORY to control the audio category, determining whether the phone mute switch affects the audio
---------------------------------------------------------------------------
2.0.5:
---------------------------------------------------------------------------
General:
* Implemented audio capture support for some platforms
* Added SDL_DequeueAudio() to retrieve audio when buffer queuing is turned on for audio capture
* Added events for dragging and dropping text
* Added events for dragging and dropping multiple items
* By default the click raising a window will not be delivered to the SDL application. You can set the hint SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH to "1" to allow that click through to the window.
* Saving a surface with an alpha channel as a BMP will use a newer BMP format that supports alpha information. You can set the hint SDL_HINT_BMP_SAVE_LEGACY_FORMAT to "1" to use the old format.
* Added SDL_GetHintBoolean() to get the boolean value of a hint
* Added SDL_RenderSetIntegerScale() to set whether to smoothly scale or use integral multiples of the viewport size when scaling the rendering output
* Added SDL_CreateRGBSurfaceWithFormat() and SDL_CreateRGBSurfaceWithFormatFrom() to create an SDL surface with a specific pixel format
* Added SDL_GetDisplayUsableBounds() which returns the area usable for windows. For example, on Mac OS X, this subtracts the area occupied by the menu bar and dock.
* Added SDL_GetWindowBordersSize() which returns the size of the window's borders around the client area
* Added a window event SDL_WINDOWEVENT_HIT_TEST when a window had a hit test that wasn't SDL_HITTEST_NORMAL (e.g. in the title bar or window frame)
* Added SDL_SetWindowResizable() to change whether a window is resizable
* Added SDL_SetWindowOpacity() and SDL_GetWindowOpacity() to affect the window transparency
* Added SDL_SetWindowModalFor() to set a window as modal for another window
* Added support for AUDIO_U16LSB and AUDIO_U16MSB to SDL_MixAudioFormat()
* Fixed flipped images when reading back from target textures when using the OpenGL renderer
* Fixed texture color modulation with SDL_BLENDMODE_NONE when using the OpenGL renderer
* Fixed bug where the alpha value of colorkeys was ignored when blitting in some cases
Windows:
* Added a hint SDL_HINT_WINDOWS_DISABLE_THREAD_NAMING to prevent SDL from raising a debugger exception to name threads. This exception can cause problems with .NET applications when running under a debugger.
* The hint SDL_HINT_THREAD_STACK_SIZE is now supported on Windows
* Fixed XBox controller triggers automatically being pulled at startup
* The first icon from the executable is used as the default window icon at runtime
* Fixed SDL log messages being printed twice if SDL was built with C library support
* Reset dead keys when the SDL window loses focus, so dead keys pressed in SDL applications don't affect text input into other applications.
Mac OS X:
* Fixed selecting the dummy video driver
* The caps lock key now generates a pressed event when pressed and a released event when released, instead of a press/release event pair when pressed.
* Fixed mouse wheel events on Mac OS X 10.12
* The audio driver has been updated to use AVFoundation for better compatibility with newer versions of Mac OS X
Linux:
* Added support for the Fcitx IME
* Added a window event SDL_WINDOWEVENT_TAKE_FOCUS when a window manager asks the SDL window whether it wants to take focus.
* Refresh rates are now rounded instead of truncated, e.g. 59.94 Hz is rounded up to 60 Hz instead of 59.
* Added initial support for touchscreens on Raspberry Pi
OpenBSD:
* SDL_GetBasePath() is now implemented on OpenBSD
iOS:
* Added support for dynamically loaded objects on iOS 8 and newer
tvOS:
* Added support for Apple TV
* Added a hint SDL_HINT_APPLE_TV_REMOTE_ALLOW_ROTATION to control whether he Apple TV remote's joystick axes will automatically match the rotation of the remote.
Android:
* Fixed SDL not resizing window when Android screen resolution changes
* Corrected the joystick Z axis reporting for the accelerometer
Emscripten (running in a web browser):
* Many bug fixes and improvements
---------------------------------------------------------------------------
2.0.4:
---------------------------------------------------------------------------
General:
* Added support for web applications using Emscripten, see docs/README-emscripten.md for more information
* Added support for web applications using Native Client (NaCl), see docs/README-nacl.md for more information
* Added an API to queue audio instead of using the audio callback:
SDL_QueueAudio(), SDL_GetQueuedAudioSize(), SDL_ClearQueuedAudio()
* Added events for audio device hot plug support:
SDL_AUDIODEVICEADDED, SDL_AUDIODEVICEREMOVED
* Added SDL_PointInRect()
* Added SDL_HasAVX2() to detect CPUs with AVX2 support
* Added SDL_SetWindowHitTest() to let apps treat parts of their SDL window like traditional window decorations (drag areas, resize areas)
* Added SDL_GetGrabbedWindow() to get the window that currently has input grab, if any
* Added SDL_RenderIsClipEnabled() to tell whether clipping is currently enabled in a renderer
* Added SDL_CaptureMouse() to capture the mouse to get events while the mouse is not in your window
* Added SDL_WarpMouseGlobal() to warp the mouse cursor in global screen space
* Added SDL_GetGlobalMouseState() to get the current mouse state outside of an SDL window
* Added a direction field to mouse wheel events to tell whether they are flipped (natural) or not
* Added GL_CONTEXT_RELEASE_BEHAVIOR GL attribute (maps to [WGL|GLX]_ARB_context_flush_control extension)
* Added EGL_KHR_create_context support to allow OpenGL ES version selection on some platforms
* Added NV12 and NV21 YUV texture support for OpenGL and OpenGL ES 2.0 renderers
* Added a Vivante video driver that is used on various SoC platforms
* Added an event SDL_RENDER_DEVICE_RESET that is sent from the D3D renderers when the D3D device is lost, and from Android's event loop when the GLES context had to be recreated
* Added a hint SDL_HINT_NO_SIGNAL_HANDLERS to disable SDL's built in signal handling
* Added a hint SDL_HINT_THREAD_STACK_SIZE to set the stack size of SDL's threads
* Added SDL_sqrtf(), SDL_tan(), and SDL_tanf() to the stdlib routines
* Improved support for WAV and BMP files with unusual chunks in them
* Renamed SDL_assert_data to SDL_AssertData and SDL_assert_state to SDL_AssertState
* Added a hint SDL_HINT_WINDOW_FRAME_USABLE_WHILE_CURSOR_HIDDEN to prevent window interaction while cursor is hidden
* Added SDL_GetDisplayDPI() to get the DPI information for a display
* Added SDL_JoystickCurrentPowerLevel() to get the battery level of a joystick
* Added SDL_JoystickFromInstanceID(), as a helper function, to get the SDL_Joystick* that an event is referring to.
* Added SDL_GameControllerFromInstanceID(), as a helper function, to get the SDL_GameController* that an event is referring to.
Windows:
* Added support for Windows Phone 8.1 and Windows 10/UWP (Universal Windows Platform)
* Timer resolution is now 1 ms by default, adjustable with the SDL_HINT_TIMER_RESOLUTION hint
* SDLmain no longer depends on the C runtime, so you can use the same .lib in both Debug and Release builds
* Added SDL_SetWindowsMessageHook() to set a function to be called for every windows message before TranslateMessage()
* Added a hint SDL_HINT_WINDOWS_ENABLE_MESSAGELOOP to control whether SDL_PumpEvents() processes the Windows message loop
* You can distinguish between real mouse and touch events by looking for SDL_TOUCH_MOUSEID in the mouse event "which" field
* SDL_SysWMinfo now contains the window HDC
* Added support for Unicode command line options
* Prevent beeping when Alt-key combos are pressed
* SDL_SetTextInputRect() re-positions the OS-rendered IME
* Added a hint SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4 to prevent generating SDL_WINDOWEVENT_CLOSE events when Alt-F4 is pressed
* Added a hint SDL_HINT_XINPUT_USE_OLD_JOYSTICK_MAPPING to use the old axis and button mapping for XInput devices (deprecated)
Mac OS X:
* Implemented drag-and-drop support
* Improved joystick hot-plug detection
* The SDL_WINDOWEVENT_EXPOSED window event is triggered in the appropriate situations
* Fixed relative mouse mode when the application loses/regains focus
* Fixed bugs related to transitioning to and from Spaces-aware fullscreen-desktop mode
* Fixed the refresh rate of display modes
* SDL_SysWMInfo is now ARC-compatible
* Added a hint SDL_HINT_MAC_BACKGROUND_APP to prevent forcing the application to become a foreground process
Linux:
* Enabled building with Mir and Wayland support by default.
* Added IBus IME support
* Added a hint SDL_HINT_IME_INTERNAL_EDITING to control whether IBus should handle text editing internally instead of sending SDL_TEXTEDITING events
* Added a hint SDL_HINT_VIDEO_X11_NET_WM_PING to allow disabling _NET_WM_PING protocol handling in SDL_CreateWindow()
* Added support for multiple audio devices when using Pulseaudio
* Fixed duplicate mouse events when using relative mouse motion
iOS:
* Added support for iOS 8
* The SDL_WINDOW_ALLOW_HIGHDPI window flag now enables high-dpi support, and SDL_GL_GetDrawableSize() or SDL_GetRendererOutputSize() gets the window resolution in pixels
* SDL_GetWindowSize() and display mode sizes are in the "DPI-independent points" / "screen coordinates" coordinate space rather than pixels (matches OS X behavior)
* Added native resolution support for the iPhone 6 Plus
* Added support for MFi game controllers
* Added support for the hint SDL_HINT_ACCELEROMETER_AS_JOYSTICK
* Added sRGB OpenGL ES context support on iOS 7+
* Added support for SDL_DisableScreenSaver(), SDL_EnableScreenSaver() and the hint SDL_HINT_VIDEO_ALLOW_SCREENSAVER
* SDL_SysWMinfo now contains the OpenGL ES framebuffer and color renderbuffer objects used by the window's active GLES view
* Fixed various rotation and orientation issues
* Fixed memory leaks
Android:
* Added a hint SDL_HINT_ANDROID_SEPARATE_MOUSE_AND_TOUCH to prevent mouse events from being registered as touch events
* Added hints SDL_HINT_ANDROID_APK_EXPANSION_MAIN_FILE_VERSION and SDL_HINT_ANDROID_APK_EXPANSION_PATCH_FILE_VERSION
* Added support for SDL_DisableScreenSaver(), SDL_EnableScreenSaver() and the hint SDL_HINT_VIDEO_ALLOW_SCREENSAVER
* Added support for SDL_ShowMessageBox() and SDL_ShowSimpleMessageBox()
Raspberry Pi:
* Added support for the Raspberry Pi 2
---------------------------------------------------------------------------
2.0.3:
---------------------------------------------------------------------------
Mac OS X:
* Fixed creating an OpenGL context by default on Mac OS X 10.6
---------------------------------------------------------------------------
2.0.2:
---------------------------------------------------------------------------
General:
* Added SDL_GL_ResetAttributes() to reset OpenGL attributes to default values
* Added an API to load a database of game controller mappings from a file:
SDL_GameControllerAddMappingsFromFile(), SDL_GameControllerAddMappingsFromRW()
* Added game controller mappings for the PS4 and OUYA controllers
* Added SDL_GetDefaultAssertionHandler() and SDL_GetAssertionHandler()
* Added SDL_DetachThread()
* Added SDL_HasAVX() to determine if the CPU has AVX features
* Added SDL_vsscanf(), SDL_acos(), and SDL_asin() to the stdlib routines
* EGL can now create/manage OpenGL and OpenGL ES 1.x/2.x contexts, and share
them using SDL_GL_SHARE_WITH_CURRENT_CONTEXT
* Added a field "clicks" to the mouse button event which records whether the event is a single click, double click, etc.
* The screensaver is now disabled by default, and there is a hint SDL_HINT_VIDEO_ALLOW_SCREENSAVER that can change that behavior.
* Added a hint SDL_HINT_MOUSE_RELATIVE_MODE_WARP to specify whether mouse relative mode should be emulated using mouse warping.
* testgl2 does not need to link with libGL anymore
* Added testgles2 test program to demonstrate working with OpenGL ES 2.0
* Added controllermap test program to visually map a game controller
Windows:
* Support for OpenGL ES 2.x contexts using either WGL or EGL (natively via
the driver or emulated through ANGLE)
* Added a hint SDL_HINT_VIDEO_WIN_D3DCOMPILER to specify which D3D shader compiler to use for OpenGL ES 2 support through ANGLE
* Added a hint SDL_HINT_VIDEO_WINDOW_SHARE_PIXEL_FORMAT that is useful when creating multiple windows that should share the same OpenGL context.
* Added an event SDL_RENDER_TARGETS_RESET that is sent when D3D9 render targets are reset after the device has been restored.
Mac OS X:
* Added a hint SDL_HINT_MAC_CTRL_CLICK_EMULATE_RIGHT_CLICK to control whether Ctrl+click should be treated as a right click on Mac OS X. This is off by default.
Linux:
* Fixed fullscreen and focused behavior when receiving NotifyGrab events
* Added experimental Wayland and Mir support, disabled by default
Android:
* Joystick support (minimum SDK version required to build SDL is now 12,
the required runtime version remains at 10, but on such devices joystick
support won't be available).
* Hotplugging support for joysticks
* Added a hint SDL_HINT_ACCELEROMETER_AS_JOYSTICK to control whether the accelerometer should be listed as a 3 axis joystick, which it will by default.
---------------------------------------------------------------------------
2.0.1:
---------------------------------------------------------------------------
General:
* Added an API to get common filesystem paths in SDL_filesystem.h:
SDL_GetBasePath(), SDL_GetPrefPath()
* Added an API to do optimized YV12 and IYUV texture updates:
SDL_UpdateYUVTexture()
* Added an API to get the amount of RAM on the system:
SDL_GetSystemRAM()
* Added a macro to perform timestamp comparisons with SDL_GetTicks():
SDL_TICKS_PASSED()
* Dramatically improved OpenGL ES 2.0 rendering performance
* Added OpenGL attribute SDL_GL_FRAMEBUFFER_SRGB_CAPABLE
Windows:
* Created a static library configuration for the Visual Studio 2010 project
* Added a hint to create the Direct3D device with support for multi-threading:
SDL_HINT_RENDER_DIRECT3D_THREADSAFE
* Added a function to get the D3D9 adapter index for a display:
SDL_Direct3D9GetAdapterIndex()
* Added a function to get the D3D9 device for a D3D9 renderer:
SDL_RenderGetD3D9Device()
* Fixed building SDL with the mingw32 toolchain (mingw-w64 is preferred)
* Fixed crash when using two XInput controllers at the same time
* Fixed detecting a mixture of XInput and DirectInput controllers
* Fixed clearing a D3D render target larger than the window
* Improved support for format specifiers in SDL_snprintf()
Mac OS X:
* Added support for retina displays:
Create your window with the SDL_WINDOW_ALLOW_HIGHDPI flag, and then use SDL_GL_GetDrawableSize() to find the actual drawable size. You are responsible for scaling mouse and drawing coordinates appropriately.
* Fixed mouse warping in fullscreen mode
* Right mouse click is emulated by holding the Ctrl key while left clicking
Linux:
* Fixed float audio support with the PulseAudio driver
* Fixed missing line endpoints in the OpenGL renderer on some drivers
* X11 symbols are no longer defined to avoid collisions when linking statically
iOS:
* Fixed status bar visibility on iOS 7
* Flipped the accelerometer Y axis to match expected values
Android:
IMPORTANT: You MUST get the updated SDLActivity.java to match C code
* Moved EGL initialization to native code
* Fixed the accelerometer axis rotation relative to the device rotation
* Fixed race conditions when handling the EGL context on pause/resume
* Touch devices are available for enumeration immediately after init
Raspberry Pi:
* Added support for the Raspberry Pi, see README-raspberrypi.txt for details

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Android
================================================================================
Matt Styles wrote a tutorial on building SDL for Android with Visual Studio:
http://trederia.blogspot.de/2017/03/building-sdl2-for-android-with-visual.html
The rest of this README covers the old style build process.
================================================================================
Requirements
================================================================================
Android SDK (version 16 or later)
https://developer.android.com/sdk/index.html
Android NDK r7 or later
https://developer.android.com/tools/sdk/ndk/index.html
Minimum API level supported by SDL: 10 (Android 2.3.3)
Joystick support is available for API level >= 12 devices.
================================================================================
How the port works
================================================================================
- Android applications are Java-based, optionally with parts written in C
- As SDL apps are C-based, we use a small Java shim that uses JNI to talk to
the SDL library
- This means that your application C code must be placed inside an Android
Java project, along with some C support code that communicates with Java
- This eventually produces a standard Android .apk package
The Android Java code implements an "Activity" and can be found in:
android-project/src/org/libsdl/app/SDLActivity.java
The Java code loads your game code, the SDL shared library, and
dispatches to native functions implemented in the SDL library:
src/core/android/SDL_android.c
Your project must include some glue code that starts your main() routine:
src/main/android/SDL_android_main.c
================================================================================
Building an app
================================================================================
For simple projects you can use the script located at build-scripts/androidbuild.sh
There's two ways of using it:
androidbuild.sh com.yourcompany.yourapp < sources.list
androidbuild.sh com.yourcompany.yourapp source1.c source2.c ...sourceN.c
sources.list should be a text file with a source file name in each line
Filenames should be specified relative to the current directory, for example if
you are in the build-scripts directory and want to create the testgles.c test, you'll
run:
./androidbuild.sh org.libsdl.testgles ../test/testgles.c
One limitation of this script is that all sources provided will be aggregated into
a single directory, thus all your source files should have a unique name.
Once the project is complete the script will tell you where the debug APK is located.
If you want to create a signed release APK, you can use the project created by this
utility to generate it.
Finally, a word of caution: re running androidbuild.sh wipes any changes you may have
done in the build directory for the app!
For more complex projects, follow these instructions:
1. Copy the android-project directory wherever you want to keep your projects
and rename it to the name of your project.
2. Move or symlink this SDL directory into the "<project>/jni" directory
3. Edit "<project>/jni/src/Android.mk" to include your source files
4. Run 'ndk-build' (a script provided by the NDK). This compiles the C source
If you want to use the Eclipse IDE, skip to the Eclipse section below.
5. Create "<project>/local.properties" and use that to point to the Android SDK directory, by writing a line with the following form:
sdk.dir=PATH_TO_ANDROID_SDK
6. Run 'ant debug' in android/project. This compiles the .java and eventually
creates a .apk with the native code embedded
7. 'ant debug install' will push the apk to the device or emulator (if connected)
Here's an explanation of the files in the Android project, so you can customize them:
android-project/
AndroidManifest.xml - package manifest. Among others, it contains the class name
of the main Activity and the package name of the application.
build.properties - empty
build.xml - build description file, used by ant. The actual application name
is specified here.
default.properties - holds the target ABI for the application, android-10 and up
project.properties - holds the target ABI for the application, android-10 and up
local.properties - holds the SDK path, you should change this to the path to your SDK
jni/ - directory holding native code
jni/Android.mk - Android makefile that can call recursively the Android.mk files
in all subdirectories
jni/SDL/ - (symlink to) directory holding the SDL library files
jni/SDL/Android.mk - Android makefile for creating the SDL shared library
jni/src/ - directory holding your C/C++ source
jni/src/Android.mk - Android makefile that you should customize to include your
source code and any library references
res/ - directory holding resources for your application
res/drawable-* - directories holding icons for different phone hardware. Could be
one dir called "drawable".
res/layout/main.xml - Usually contains a file main.xml, which declares the screen layout.
We don't need it because we use the SDL video output.
res/values/strings.xml - strings used in your application, including the application name
shown on the phone.
src/org/libsdl/app/SDLActivity.java - the Java class handling the initialization and binding
to SDL. Be very careful changing this, as the SDL library relies
on this implementation.
================================================================================
Build an app with static linking of libSDL
================================================================================
This build uses the Android NDK module system.
Instructions:
1. Copy the android-project directory wherever you want to keep your projects
and rename it to the name of your project.
2. Rename "<project>/jni/src/Android_static.mk" to "<project>/jni/src/Android.mk"
(overwrite the existing one)
3. Edit "<project>/jni/src/Android.mk" to include your source files
4. create and export an environment variable named NDK_MODULE_PATH that points
to the parent directory of this SDL directory. e.g.:
export NDK_MODULE_PATH="$PWD"/..
5. Edit "<project>/src/org/libsdl/app/SDLActivity.java" and remove the call to
System.loadLibrary("SDL2").
6. Run 'ndk-build' (a script provided by the NDK). This compiles the C source
================================================================================
Customizing your application name
================================================================================
To customize your application name, edit AndroidManifest.xml and replace
"org.libsdl.app" with an identifier for your product package.
Then create a Java class extending SDLActivity and place it in a directory
under src matching your package, e.g.
src/com/gamemaker/game/MyGame.java
Here's an example of a minimal class file:
--- MyGame.java --------------------------
package com.gamemaker.game;
import org.libsdl.app.SDLActivity;
/**
* A sample wrapper class that just calls SDLActivity
*/
public class MyGame extends SDLActivity { }
------------------------------------------
Then replace "SDLActivity" in AndroidManifest.xml with the name of your
class, .e.g. "MyGame"
================================================================================
Customizing your application icon
================================================================================
Conceptually changing your icon is just replacing the "ic_launcher.png" files in
the drawable directories under the res directory. There are four directories for
different screen sizes. These can be replaced with one dir called "drawable",
containing an icon file "ic_launcher.png" with dimensions 48x48 or 72x72.
You may need to change the name of your icon in AndroidManifest.xml to match
this icon filename.
================================================================================
Loading assets
================================================================================
Any files you put in the "assets" directory of your android-project directory
will get bundled into the application package and you can load them using the
standard functions in SDL_rwops.h.
There are also a few Android specific functions that allow you to get other
useful paths for saving and loading data:
* SDL_AndroidGetInternalStoragePath()
* SDL_AndroidGetExternalStorageState()
* SDL_AndroidGetExternalStoragePath()
See SDL_system.h for more details on these functions.
The asset packaging system will, by default, compress certain file extensions.
SDL includes two asset file access mechanisms, the preferred one is the so
called "File Descriptor" method, which is faster and doesn't involve the Dalvik
GC, but given this method does not work on compressed assets, there is also the
"Input Stream" method, which is automatically used as a fall back by SDL. You
may want to keep this fact in mind when building your APK, specially when large
files are involved.
For more information on which extensions get compressed by default and how to
disable this behaviour, see for example:
http://ponystyle.com/blog/2010/03/26/dealing-with-asset-compression-in-android-apps/
================================================================================
Pause / Resume behaviour
================================================================================
If SDL is compiled with SDL_ANDROID_BLOCK_ON_PAUSE defined (the default),
the event loop will block itself when the app is paused (ie, when the user
returns to the main Android dashboard). Blocking is better in terms of battery
use, and it allows your app to spring back to life instantaneously after resume
(versus polling for a resume message).
Upon resume, SDL will attempt to restore the GL context automatically.
In modern devices (Android 3.0 and up) this will most likely succeed and your
app can continue to operate as it was.
However, there's a chance (on older hardware, or on systems under heavy load),
where the GL context can not be restored. In that case you have to listen for
a specific message, (which is not yet implemented!) and restore your textures
manually or quit the app (which is actually the kind of behaviour you'll see
under iOS, if the OS can not restore your GL context it will just kill your app)
================================================================================
Threads and the Java VM
================================================================================
For a quick tour on how Linux native threads interoperate with the Java VM, take
a look here: https://developer.android.com/guide/practices/jni.html
If you want to use threads in your SDL app, it's strongly recommended that you
do so by creating them using SDL functions. This way, the required attach/detach
handling is managed by SDL automagically. If you have threads created by other
means and they make calls to SDL functions, make sure that you call
Android_JNI_SetupThread() before doing anything else otherwise SDL will attach
your thread automatically anyway (when you make an SDL call), but it'll never
detach it.
================================================================================
Using STL
================================================================================
You can use STL in your project by creating an Application.mk file in the jni
folder and adding the following line:
APP_STL := stlport_static
For more information check out CPLUSPLUS-SUPPORT.html in the NDK documentation.
================================================================================
Additional documentation
================================================================================
The documentation in the NDK docs directory is very helpful in understanding the
build process and how to work with native code on the Android platform.
The best place to start is with docs/OVERVIEW.TXT
================================================================================
Using Eclipse
================================================================================
First make sure that you've installed Eclipse and the Android extensions as described here:
https://developer.android.com/tools/sdk/eclipse-adt.html
Once you've copied the SDL android project and customized it, you can create an Eclipse project from it:
* File -> New -> Other
* Select the Android -> Android Project wizard and click Next
* Enter the name you'd like your project to have
* Select "Create project from existing source" and browse for your project directory
* Make sure the Build Target is set to Android 3.1 (API 12)
* Click Finish
================================================================================
Using the emulator
================================================================================
There are some good tips and tricks for getting the most out of the
emulator here: https://developer.android.com/tools/devices/emulator.html
Especially useful is the info on setting up OpenGL ES 2.0 emulation.
Notice that this software emulator is incredibly slow and needs a lot of disk space.
Using a real device works better.
================================================================================
Troubleshooting
================================================================================
You can create and run an emulator from the Eclipse IDE:
* Window -> Android SDK and AVD Manager
You can see if adb can see any devices with the following command:
adb devices
You can see the output of log messages on the default device with:
adb logcat
You can push files to the device with:
adb push local_file remote_path_and_file
You can push files to the SD Card at /sdcard, for example:
adb push moose.dat /sdcard/moose.dat
You can see the files on the SD card with a shell command:
adb shell ls /sdcard/
You can start a command shell on the default device with:
adb shell
You can remove the library files of your project (and not the SDL lib files) with:
ndk-build clean
You can do a build with the following command:
ndk-build
You can see the complete command line that ndk-build is using by passing V=1 on the command line:
ndk-build V=1
If your application crashes in native code, you can use addr2line to convert the
addresses in the stack trace to lines in your code.
For example, if your crash looks like this:
I/DEBUG ( 31): signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 400085d0
I/DEBUG ( 31): r0 00000000 r1 00001000 r2 00000003 r3 400085d4
I/DEBUG ( 31): r4 400085d0 r5 40008000 r6 afd41504 r7 436c6a7c
I/DEBUG ( 31): r8 436c6b30 r9 435c6fb0 10 435c6f9c fp 4168d82c
I/DEBUG ( 31): ip 8346aff0 sp 436c6a60 lr afd1c8ff pc afd1c902 cpsr 60000030
I/DEBUG ( 31): #00 pc 0001c902 /system/lib/libc.so
I/DEBUG ( 31): #01 pc 0001ccf6 /system/lib/libc.so
I/DEBUG ( 31): #02 pc 000014bc /data/data/org.libsdl.app/lib/libmain.so
I/DEBUG ( 31): #03 pc 00001506 /data/data/org.libsdl.app/lib/libmain.so
You can see that there's a crash in the C library being called from the main code.
I run addr2line with the debug version of my code:
arm-eabi-addr2line -C -f -e obj/local/armeabi/libmain.so
and then paste in the number after "pc" in the call stack, from the line that I care about:
000014bc
I get output from addr2line showing that it's in the quit function, in testspriteminimal.c, on line 23.
You can add logging to your code to help show what's happening:
#include <android/log.h>
__android_log_print(ANDROID_LOG_INFO, "foo", "Something happened! x = %d", x);
If you need to build without optimization turned on, you can create a file called
"Application.mk" in the jni directory, with the following line in it:
APP_OPTIM := debug
================================================================================
Memory debugging
================================================================================
The best (and slowest) way to debug memory issues on Android is valgrind.
Valgrind has support for Android out of the box, just grab code using:
svn co svn://svn.valgrind.org/valgrind/trunk valgrind
... and follow the instructions in the file README.android to build it.
One thing I needed to do on Mac OS X was change the path to the toolchain,
and add ranlib to the environment variables:
export RANLIB=$NDKROOT/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-ranlib
Once valgrind is built, you can create a wrapper script to launch your
application with it, changing org.libsdl.app to your package identifier:
--- start_valgrind_app -------------------
#!/system/bin/sh
export TMPDIR=/data/data/org.libsdl.app
exec /data/local/Inst/bin/valgrind --log-file=/sdcard/valgrind.log --error-limit=no $*
------------------------------------------
Then push it to the device:
adb push start_valgrind_app /data/local
and make it executable:
adb shell chmod 755 /data/local/start_valgrind_app
and tell Android to use the script to launch your application:
adb shell setprop wrap.org.libsdl.app "logwrapper /data/local/start_valgrind_app"
If the setprop command says "could not set property", it's likely that
your package name is too long and you should make it shorter by changing
AndroidManifest.xml and the path to your class file in android-project/src
You can then launch your application normally and waaaaaaaiiittt for it.
You can monitor the startup process with the logcat command above, and
when it's done (or even while it's running) you can grab the valgrind
output file:
adb pull /sdcard/valgrind.log
When you're done instrumenting with valgrind, you can disable the wrapper:
adb shell setprop wrap.org.libsdl.app ""
================================================================================
Graphics debugging
================================================================================
If you are developing on a compatible Tegra-based tablet, NVidia provides
Tegra Graphics Debugger at their website. Because SDL2 dynamically loads EGL
and GLES libraries, you must follow their instructions for installing the
interposer library on a rooted device. The non-rooted instructions are not
compatible with applications that use SDL2 for video.
The Tegra Graphics Debugger is available from NVidia here:
https://developer.nvidia.com/tegra-graphics-debugger
================================================================================
Why is API level 10 the minimum required?
================================================================================
API level 10 is the minimum required level at runtime (that is, on the device)
because SDL requires some functionality for running not
available on older devices. Since the incorporation of joystick support into SDL,
the minimum SDK required to *build* SDL is version 12. Devices running API levels
10-11 are still supported, only with the joystick functionality disabled.
Support for native OpenGL ES and ES2 applications was introduced in the NDK for
API level 4 and 8. EGL was made a stable API in the NDK for API level 9, which
has since then been obsoleted, with the recommendation to developers to bump the
required API level to 10.
As of this writing, according to https://developer.android.com/about/dashboards/index.html
about 90% of the Android devices accessing Google Play support API level 10 or
higher (March 2013).
================================================================================
A note regarding the use of the "dirty rectangles" rendering technique
================================================================================
If your app uses a variation of the "dirty rectangles" rendering technique,
where you only update a portion of the screen on each frame, you may notice a
variety of visual glitches on Android, that are not present on other platforms.
This is caused by SDL's use of EGL as the support system to handle OpenGL ES/ES2
contexts, in particular the use of the eglSwapBuffers function. As stated in the
documentation for the function "The contents of ancillary buffers are always
undefined after calling eglSwapBuffers".
Setting the EGL_SWAP_BEHAVIOR attribute of the surface to EGL_BUFFER_PRESERVED
is not possible for SDL as it requires EGL 1.4, available only on the API level
17+, so the only workaround available on this platform is to redraw the entire
screen each frame.
Reference: http://www.khronos.org/registry/egl/specs/EGLTechNote0001.html
================================================================================
Known issues
================================================================================
- The number of buttons reported for each joystick is hardcoded to be 36, which
is the current maximum number of buttons Android can report.

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CMake
================================================================================
(www.cmake.org)
SDL's build system was traditionally based on autotools. Over time, this
approach has suffered from several issues across the different supported
platforms.
To solve these problems, a new build system based on CMake is under development.
It works in parallel to the legacy system, so users can experiment with it
without complication.
While still experimental, the build system should be usable on the following
platforms:
* FreeBSD
* Linux
* VS.NET 2010
* MinGW and Msys
* OS X with support for XCode
================================================================================
Usage
================================================================================
Assuming the source for SDL is located at ~/sdl
cd ~
mkdir build
cd build
cmake ../sdl
This will build the static and dynamic versions of SDL in the ~/build directory.

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DirectFB
========
Supports:
- Hardware YUV overlays
- OpenGL - software only
- 2D/3D accelerations (depends on directfb driver)
- multiple displays
- windows
What you need:
* DirectFB 1.0.1, 1.2.x, 1.3.0
* Kernel-Framebuffer support: required: vesafb, radeonfb ....
* Mesa 7.0.x - optional for OpenGL
/etc/directfbrc
This file should contain the following lines to make
your joystick work and avoid crashes:
------------------------
disable-module=joystick
disable-module=cle266
disable-module=cyber5k
no-linux-input-grab
------------------------
To disable to use x11 backend when DISPLAY variable is found use
export SDL_DIRECTFB_X11_CHECK=0
To disable the use of linux input devices, i.e. multimice/multikeyboard support,
use
export SDL_DIRECTFB_LINUX_INPUT=0
To use hardware accelerated YUV-overlays for YUV-textures, use:
export SDL_DIRECTFB_YUV_DIRECT=1
This is disabled by default. It will only support one
YUV texture, namely the first. Every other YUV texture will be
rendered in software.
In addition, you may use (directfb-1.2.x)
export SDL_DIRECTFB_YUV_UNDERLAY=1
to make the YUV texture an underlay. This will make the cursor to
be shown.
Simple Window Manager
=====================
The driver has support for a very, very basic window manager you may
want to use when running with "wm=default". Use
export SDL_DIRECTFB_WM=1
to enable basic window borders. In order to have the window title rendered,
you need to have the following font installed:
/usr/share/fonts/truetype/freefont/FreeSans.ttf
OpenGL Support
==============
The following instructions will give you *software* OpenGL. However this
works at least on all directfb supported platforms.
As of this writing 20100802 you need to pull Mesa from git and do the following:
------------------------
git clone git://anongit.freedesktop.org/git/mesa/mesa
cd mesa
git checkout 2c9fdaf7292423c157fc79b5ce43f0f199dd753a
------------------------
Edit configs/linux-directfb so that the Directories-section looks like
------------------------
# Directories
SRC_DIRS = mesa glu
GLU_DIRS = sgi
DRIVER_DIRS = directfb
PROGRAM_DIRS =
------------------------
make linux-directfb
make
echo Installing - please enter sudo pw.
sudo make install INSTALL_DIR=/usr/local/dfb_GL
cd src/mesa/drivers/directfb
make
sudo make install INSTALL_DIR=/usr/local/dfb_GL
------------------------
To run the SDL - testprograms:
export SDL_VIDEODRIVER=directfb
export LD_LIBRARY_PATH=/usr/local/dfb_GL/lib
export LD_PRELOAD=/usr/local/dfb_GL/libGL.so.7
./testgl

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Dynamic API
================================================================================
Originally posted by Ryan at:
https://plus.google.com/103391075724026391227/posts/TB8UfnDYu4U
Background:
- The Steam Runtime has (at least in theory) a really kick-ass build of SDL2,
but developers are shipping their own SDL2 with individual Steam games.
These games might stop getting updates, but a newer SDL2 might be needed later.
Certainly we'll always be fixing bugs in SDL, even if a new video target isn't
ever needed, and these fixes won't make it to a game shipping its own SDL.
- Even if we replace the SDL2 in those games with a compatible one, that is to
say, edit a developer's Steam depot (yuck!), there are developers that are
statically linking SDL2 that we can't do this for. We can't even force the
dynamic loader to ignore their SDL2 in this case, of course.
- If you don't ship an SDL2 with the game in some form, people that disabled the
Steam Runtime, or just tried to run the game from the command line instead of
Steam might find themselves unable to run the game, due to a missing dependency.
- If you want to ship on non-Steam platforms like GOG or Humble Bundle, or target
generic Linux boxes that may or may not have SDL2 installed, you have to ship
the library or risk a total failure to launch. So now, you might have to have
a non-Steam build plus a Steam build (that is, one with and one without SDL2
included), which is inconvenient if you could have had one universal build
that works everywhere.
- We like the zlib license, but the biggest complaint from the open source
community about the license change is the static linking. The LGPL forced this
as a legal, not technical issue, but zlib doesn't care. Even those that aren't
concerned about the GNU freedoms found themselves solving the same problems:
swapping in a newer SDL to an older game often times can save the day.
Static linking stops this dead.
So here's what we did:
SDL now has, internally, a table of function pointers. So, this is what SDL_Init
now looks like:
UInt32 SDL_Init(Uint32 flags)
{
return jump_table.SDL_Init(flags);
}
Except that is all done with a bunch of macro magic so we don't have to maintain
every one of these.
What is jump_table.SDL_init()? Eventually, that's a function pointer of the real
SDL_Init() that you've been calling all this time. But at startup, it looks more
like this:
Uint32 SDL_Init_DEFAULT(Uint32 flags)
{
SDL_InitDynamicAPI();
return jump_table.SDL_Init(flags);
}
SDL_InitDynamicAPI() fills in jump_table with all the actual SDL function
pointers, which means that this _DEFAULT function never gets called again.
First call to any SDL function sets the whole thing up.
So you might be asking, what was the value in that? Isn't this what the operating
system's dynamic loader was supposed to do for us? Yes, but now we've got this
level of indirection, we can do things like this:
export SDL_DYNAMIC_API=/my/actual/libSDL-2.0.so.0
./MyGameThatIsStaticallyLinkedToSDL2
And now, this game that is staticallly linked to SDL, can still be overridden
with a newer, or better, SDL. The statically linked one will only be used as
far as calling into the jump table in this case. But in cases where no override
is desired, the statically linked version will provide its own jump table,
and everyone is happy.
So now:
- Developers can statically link SDL, and users can still replace it.
(We'd still rather you ship a shared library, though!)
- Developers can ship an SDL with their game, Valve can override it for, say,
new features on SteamOS, or distros can override it for their own needs,
but it'll also just work in the default case.
- Developers can ship the same package to everyone (Humble Bundle, GOG, etc),
and it'll do the right thing.
- End users (and Valve) can update a game's SDL in almost any case,
to keep abandoned games running on newer platforms.
- Everyone develops with SDL exactly as they have been doing all along.
Same headers, same ABI. Just get the latest version to enable this magic.
A little more about SDL_InitDynamicAPI():
Internally, InitAPI does some locking to make sure everything waits until a
single thread initializes everything (although even SDL_CreateThread() goes
through here before spinning a thread, too), and then decides if it should use
an external SDL library. If not, it sets up the jump table using the current
SDL's function pointers (which might be statically linked into a program, or in
a shared library of its own). If so, it loads that library and looks for and
calls a single function:
SInt32 SDL_DYNAPI_entry(Uint32 version, void *table, Uint32 tablesize);
That function takes a version number (more on that in a moment), the address of
the jump table, and the size, in bytes, of the table.
Now, we've got policy here: this table's layout never changes; new stuff gets
added to the end. Therefore SDL_DYNAPI_entry() knows that it can provide all
the needed functions if tablesize <= sizeof its own jump table. If tablesize is
bigger (say, SDL 2.0.4 is trying to load SDL 2.0.3), then we know to abort, but
if it's smaller, we know we can provide the entire API that the caller needs.
The version variable is a failsafe switch.
Right now it's always 1. This number changes when there are major API changes
(so we know if the tablesize might be smaller, or entries in it have changed).
Right now SDL_DYNAPI_entry gives up if the version doesn't match, but it's not
inconceivable to have a small dispatch library that only supplies this one
function and loads different, otherwise-incompatible SDL libraries and has the
right one initialize the jump table based on the version. For something that
must generically catch lots of different versions of SDL over time, like the
Steam Client, this isn't a bad option.
Finally, I'm sure some people are reading this and thinking,
"I don't want that overhead in my project!"
To which I would point out that the extra function call through the jump table
probably wouldn't even show up in a profile, but lucky you: this can all be
disabled. You can build SDL without this if you absolutely must, but we would
encourage you not to do that. However, on heavily locked down platforms like
iOS, or maybe when debugging, it makes sense to disable it. The way this is
designed in SDL, you just have to change one #define, and the entire system
vaporizes out, and SDL functions exactly like it always did. Most of it is
macro magic, so the system is contained to one C file and a few headers.
However, this is on by default and you have to edit a header file to turn it
off. Our hopes is that if we make it easy to disable, but not too easy,
everyone will ultimately be able to get what they want, but we've gently
nudged everyone towards what we think is the best solution.

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Emscripten
================================================================================
Build:
$ mkdir build
$ cd build
$ emconfigure ../configure --host=asmjs-unknown-emscripten --disable-assembly --disable-threads --disable-cpuinfo CFLAGS="-O2"
$ emmake make
Or with cmake:
$ mkdir build
$ cd build
$ emcmake cmake ..
$ emmake make
To build one of the tests:
$ cd test/
$ emcc -O2 --js-opts 0 -g4 testdraw2.c -I../include ../build/.libs/libSDL2.a ../build/libSDL2_test.a -o a.html
Uses GLES2 renderer or software
Some other SDL2 libraries can be easily built (assuming SDL2 is installed somewhere):
SDL_mixer (http://www.libsdl.org/projects/SDL_mixer/):
$ EMCONFIGURE_JS=1 emconfigure ../configure
build as usual...
SDL_gfx (http://cms.ferzkopp.net/index.php/software/13-sdl-gfx):
$ EMCONFIGURE_JS=1 emconfigure ../configure --disable-mmx
build as usual...

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Dollar Gestures
===========================================================================
SDL provides an implementation of the $1 gesture recognition system. This allows for recording, saving, loading, and performing single stroke gestures.
Gestures can be performed with any number of fingers (the centroid of the fingers must follow the path of the gesture), but the number of fingers must be constant (a finger cannot go down in the middle of a gesture). The path of a gesture is considered the path from the time when the final finger went down, to the first time any finger comes up.
Dollar gestures are assigned an Id based on a hash function. This is guaranteed to remain constant for a given gesture. There is a (small) chance that two different gestures will be assigned the same ID. In this case, simply re-recording one of the gestures should result in a different ID.
Recording:
----------
To begin recording on a touch device call:
SDL_RecordGesture(SDL_TouchID touchId), where touchId is the id of the touch device you wish to record on, or -1 to record on all connected devices.
Recording terminates as soon as a finger comes up. Recording is acknowledged by an SDL_DOLLARRECORD event.
A SDL_DOLLARRECORD event is a dgesture with the following fields:
* event.dgesture.touchId - the Id of the touch used to record the gesture.
* event.dgesture.gestureId - the unique id of the recorded gesture.
Performing:
-----------
As long as there is a dollar gesture assigned to a touch, every finger-up event will also cause an SDL_DOLLARGESTURE event with the following fields:
* event.dgesture.touchId - the Id of the touch which performed the gesture.
* event.dgesture.gestureId - the unique id of the closest gesture to the performed stroke.
* event.dgesture.error - the difference between the gesture template and the actual performed gesture. Lower error is a better match.
* event.dgesture.numFingers - the number of fingers used to draw the stroke.
Most programs will want to define an appropriate error threshold and check to be sure that the error of a gesture is not abnormally high (an indicator that no gesture was performed).
Saving:
-------
To save a template, call SDL_SaveDollarTemplate(gestureId, dst) where gestureId is the id of the gesture you want to save, and dst is an SDL_RWops pointer to the file where the gesture will be stored.
To save all currently loaded templates, call SDL_SaveAllDollarTemplates(dst) where dst is an SDL_RWops pointer to the file where the gesture will be stored.
Both functions return the number of gestures successfully saved.
Loading:
--------
To load templates from a file, call SDL_LoadDollarTemplates(touchId,src) where touchId is the id of the touch to load to (or -1 to load to all touch devices), and src is an SDL_RWops pointer to a gesture save file.
SDL_LoadDollarTemplates returns the number of templates successfully loaded.
===========================================================================
Multi Gestures
===========================================================================
SDL provides simple support for pinch/rotate/swipe gestures.
Every time a finger is moved an SDL_MULTIGESTURE event is sent with the following fields:
* event.mgesture.touchId - the Id of the touch on which the gesture was performed.
* event.mgesture.x - the normalized x coordinate of the gesture. (0..1)
* event.mgesture.y - the normalized y coordinate of the gesture. (0..1)
* event.mgesture.dTheta - the amount that the fingers rotated during this motion.
* event.mgesture.dDist - the amount that the fingers pinched during this motion.
* event.mgesture.numFingers - the number of fingers used in the gesture.
===========================================================================
Notes
===========================================================================
For a complete example see test/testgesture.c
Please direct questions/comments to:
jim.tla+sdl_touch@gmail.com

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Mercurial
=========
The latest development version of SDL is available via Mercurial.
Mercurial allows you to get up-to-the-minute fixes and enhancements;
as a developer works on a source tree, you can use "hg" to mirror that
source tree instead of waiting for an official release. Please look
at the Mercurial website ( https://www.mercurial-scm.org/ ) for more
information on using hg, where you can also download software for
Mac OS X, Windows, and Unix systems.
hg clone http://hg.libsdl.org/SDL
If you are building SDL via configure, you will need to run autogen.sh
before running configure.
There is a web interface to the subversion repository at:
http://hg.libsdl.org/SDL/
There is an RSS feed available at that URL, for those that want to
track commits in real time.

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iOS
======
==============================================================================
Building the Simple DirectMedia Layer for iOS 5.1+
==============================================================================
Requirements: Mac OS X 10.8 or later and the iOS 7+ SDK.
Instructions:
1. Open SDL.xcodeproj (located in Xcode-iOS/SDL) in Xcode.
2. Select your desired target, and hit build.
There are three build targets:
- libSDL.a:
Build SDL as a statically linked library
- testsdl:
Build a test program (there are known test failures which are fine)
- Template:
Package a project template together with the SDL for iPhone static libraries and copies of the SDL headers. The template includes proper references to the SDL library and headers, skeleton code for a basic SDL program, and placeholder graphics for the application icon and startup screen.
==============================================================================
Build SDL for iOS from the command line
==============================================================================
1. cd (PATH WHERE THE SDL CODE IS)/build-scripts
2. ./iosbuild.sh
If everything goes fine, you should see a build/ios directory, inside there's
two directories "lib" and "include".
"include" contains a copy of the SDL headers that you'll need for your project,
make sure to configure XCode to look for headers there.
"lib" contains find two files, libSDL2.a and libSDL2main.a, you have to add both
to your XCode project. These libraries contain three architectures in them,
armv6 for legacy devices, armv7, and i386 (for the simulator).
By default, iosbuild.sh will autodetect the SDK version you have installed using
xcodebuild -showsdks, and build for iOS >= 3.0, you can override this behaviour
by setting the MIN_OS_VERSION variable, ie:
MIN_OS_VERSION=4.2 ./iosbuild.sh
==============================================================================
Using the Simple DirectMedia Layer for iOS
==============================================================================
FIXME: This needs to be updated for the latest methods
Here is the easiest method:
1. Build the SDL library (libSDL2.a) and the iPhone SDL Application template.
2. Install the iPhone SDL Application template by copying it to one of Xcode's template directories. I recommend creating a directory called "SDL" in "/Developer/Platforms/iOS.platform/Developer/Library/Xcode/Project Templates/" and placing it there.
3. Start a new project using the template. The project should be immediately ready for use with SDL.
Here is a more manual method:
1. Create a new iOS view based application.
2. Build the SDL static library (libSDL2.a) for iOS and include them in your project. Xcode will ignore the library that is not currently of the correct architecture, hence your app will work both on iOS and in the iOS Simulator.
3. Include the SDL header files in your project.
4. Remove the ApplicationDelegate.h and ApplicationDelegate.m files -- SDL for iOS provides its own UIApplicationDelegate. Remove MainWindow.xib -- SDL for iOS produces its user interface programmatically.
5. Delete the contents of main.m and program your app as a regular SDL program instead. You may replace main.m with your own main.c, but you must tell Xcode not to use the project prefix file, as it includes Objective-C code.
==============================================================================
Notes -- Retina / High-DPI and window sizes
==============================================================================
Window and display mode sizes in SDL are in "screen coordinates" (or "points",
in Apple's terminology) rather than in pixels. On iOS this means that a window
created on an iPhone 6 will have a size in screen coordinates of 375 x 667,
rather than a size in pixels of 750 x 1334. All iOS apps are expected to
size their content based on screen coordinates / points rather than pixels,
as this allows different iOS devices to have different pixel densities
(Retina versus non-Retina screens, etc.) without apps caring too much.
By default SDL will not use the full pixel density of the screen on
Retina/high-dpi capable devices. Use the SDL_WINDOW_ALLOW_HIGHDPI flag when
creating your window to enable high-dpi support.
When high-dpi support is enabled, SDL_GetWindowSize() and display mode sizes
will still be in "screen coordinates" rather than pixels, but the window will
have a much greater pixel density when the device supports it, and the
SDL_GL_GetDrawableSize() or SDL_GetRendererOutputSize() functions (depending on
whether raw OpenGL or the SDL_Render API is used) can be queried to determine
the size in pixels of the drawable screen framebuffer.
Some OpenGL ES functions such as glViewport expect sizes in pixels rather than
sizes in screen coordinates. When doing 2D rendering with OpenGL ES, an
orthographic projection matrix using the size in screen coordinates
(SDL_GetWindowSize()) can be used in order to display content at the same scale
no matter whether a Retina device is used or not.
==============================================================================
Notes -- Application events
==============================================================================
On iOS the application goes through a fixed life cycle and you will get
notifications of state changes via application events. When these events
are delivered you must handle them in an event callback because the OS may
not give you any processing time after the events are delivered.
e.g.
int HandleAppEvents(void *userdata, SDL_Event *event)
{
switch (event->type)
{
case SDL_APP_TERMINATING:
/* Terminate the app.
Shut everything down before returning from this function.
*/
return 0;
case SDL_APP_LOWMEMORY:
/* You will get this when your app is paused and iOS wants more memory.
Release as much memory as possible.
*/
return 0;
case SDL_APP_WILLENTERBACKGROUND:
/* Prepare your app to go into the background. Stop loops, etc.
This gets called when the user hits the home button, or gets a call.
*/
return 0;
case SDL_APP_DIDENTERBACKGROUND:
/* This will get called if the user accepted whatever sent your app to the background.
If the user got a phone call and canceled it, you'll instead get an SDL_APP_DIDENTERFOREGROUND event and restart your loops.
When you get this, you have 5 seconds to save all your state or the app will be terminated.
Your app is NOT active at this point.
*/
return 0;
case SDL_APP_WILLENTERFOREGROUND:
/* This call happens when your app is coming back to the foreground.
Restore all your state here.
*/
return 0;
case SDL_APP_DIDENTERFOREGROUND:
/* Restart your loops here.
Your app is interactive and getting CPU again.
*/
return 0;
default:
/* No special processing, add it to the event queue */
return 1;
}
}
int main(int argc, char *argv[])
{
SDL_SetEventFilter(HandleAppEvents, NULL);
... run your main loop
return 0;
}
==============================================================================
Notes -- Accelerometer as Joystick
==============================================================================
SDL for iPhone supports polling the built in accelerometer as a joystick device. For an example on how to do this, see the accelerometer.c in the demos directory.
The main thing to note when using the accelerometer with SDL is that while the iPhone natively reports accelerometer as floating point values in units of g-force, SDL_JoystickGetAxis() reports joystick values as signed integers. Hence, in order to convert between the two, some clamping and scaling is necessary on the part of the iPhone SDL joystick driver. To convert SDL_JoystickGetAxis() reported values BACK to units of g-force, simply multiply the values by SDL_IPHONE_MAX_GFORCE / 0x7FFF.
==============================================================================
Notes -- OpenGL ES
==============================================================================
Your SDL application for iOS uses OpenGL ES for video by default.
OpenGL ES for iOS supports several display pixel formats, such as RGBA8 and RGB565, which provide a 32 bit and 16 bit color buffer respectively. By default, the implementation uses RGB565, but you may use RGBA8 by setting each color component to 8 bits in SDL_GL_SetAttribute().
If your application doesn't use OpenGL's depth buffer, you may find significant performance improvement by setting SDL_GL_DEPTH_SIZE to 0.
Finally, if your application completely redraws the screen each frame, you may find significant performance improvement by setting the attribute SDL_GL_RETAINED_BACKING to 0.
OpenGL ES on iOS doesn't use the traditional system-framebuffer setup provided in other operating systems. Special care must be taken because of this:
- The drawable Renderbuffer must be bound to the GL_RENDERBUFFER binding point when SDL_GL_SwapWindow() is called.
- The drawable Framebuffer Object must be bound while rendering to the screen and when SDL_GL_SwapWindow() is called.
- If multisample antialiasing (MSAA) is used and glReadPixels is used on the screen, the drawable framebuffer must be resolved to the MSAA resolve framebuffer (via glBlitFramebuffer or glResolveMultisampleFramebufferAPPLE), and the MSAA resolve framebuffer must be bound to the GL_READ_FRAMEBUFFER binding point, before glReadPixels is called.
The above objects can be obtained via SDL_GetWindowWMInfo() (in SDL_syswm.h).
==============================================================================
Notes -- Keyboard
==============================================================================
The SDL keyboard API has been extended to support on-screen keyboards:
void SDL_StartTextInput()
-- enables text events and reveals the onscreen keyboard.
void SDL_StopTextInput()
-- disables text events and hides the onscreen keyboard.
SDL_bool SDL_IsTextInputActive()
-- returns whether or not text events are enabled (and the onscreen keyboard is visible)
==============================================================================
Notes -- Reading and Writing files
==============================================================================
Each application installed on iPhone resides in a sandbox which includes its own Application Home directory. Your application may not access files outside this directory.
Once your application is installed its directory tree looks like:
MySDLApp Home/
MySDLApp.app
Documents/
Library/
Preferences/
tmp/
When your SDL based iPhone application starts up, it sets the working directory to the main bundle (MySDLApp Home/MySDLApp.app), where your application resources are stored. You cannot write to this directory. Instead, I advise you to write document files to "../Documents/" and preferences to "../Library/Preferences".
More information on this subject is available here:
http://developer.apple.com/library/ios/#documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/Introduction/Introduction.html
==============================================================================
Notes -- iPhone SDL limitations
==============================================================================
Windows:
Full-size, single window applications only. You cannot create multi-window SDL applications for iPhone OS. The application window will fill the display, though you have the option of turning on or off the menu-bar (pass SDL_CreateWindow() the flag SDL_WINDOW_BORDERLESS).
Textures:
The optimal texture formats on iOS are SDL_PIXELFORMAT_ABGR8888, SDL_PIXELFORMAT_ABGR8888, SDL_PIXELFORMAT_BGR888, and SDL_PIXELFORMAT_RGB24 pixel formats.
Loading Shared Objects:
This is disabled by default since it seems to break the terms of the iOS SDK agreement for iOS versions prior to iOS 8. It can be re-enabled in SDL_config_iphoneos.h.
==============================================================================
Game Center
==============================================================================
Game Center integration might require that you break up your main loop in order to yield control back to the system. In other words, instead of running an endless main loop, you run each frame in a callback function, using:
int SDL_iPhoneSetAnimationCallback(SDL_Window * window, int interval, void (*callback)(void*), void *callbackParam);
This will set up the given function to be called back on the animation callback, and then you have to return from main() to let the Cocoa event loop run.
e.g.
extern "C"
void ShowFrame(void*)
{
... do event handling, frame logic and rendering ...
}
int main(int argc, char *argv[])
{
... initialize game ...
#if __IPHONEOS__
// Initialize the Game Center for scoring and matchmaking
InitGameCenter();
// Set up the game to run in the window animation callback on iOS
// so that Game Center and so forth works correctly.
SDL_iPhoneSetAnimationCallback(window, 1, ShowFrame, NULL);
#else
while ( running ) {
ShowFrame(0);
DelayFrame();
}
#endif
return 0;
}
==============================================================================
Deploying to older versions of iOS
==============================================================================
SDL supports deploying to older versions of iOS than are supported by the latest version of Xcode, all the way back to iOS 6.1
In order to do that you need to download an older version of Xcode:
https://developer.apple.com/download/more/?name=Xcode
Open the package contents of the older Xcode and your newer version of Xcode and copy over the folders in Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
Then open the file Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/SDKSettings.plist and add the versions of iOS you want to deploy to the key Root/DefaultProperties/DEPLOYMENT_TARGET_SUGGESTED_VALUES
Open your project and set your deployment target to the desired version of iOS
Finally, remove GameController from the list of frameworks linked by your application and edit the build settings for "Other Linker Flags" and add -weak_framework GameController

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Linux
================================================================================
By default SDL will only link against glibc, the rest of the features will be
enabled dynamically at runtime depending on the available features on the target
system. So, for example if you built SDL with Xinerama support and the target
system does not have the Xinerama libraries installed, it will be disabled
at runtime, and you won't get a missing library error, at least with the
default configuration parameters.
================================================================================
Build Dependencies
================================================================================
Ubuntu 13.04, all available features enabled:
sudo apt-get install build-essential mercurial make cmake autoconf automake \
libtool libasound2-dev libpulse-dev libaudio-dev libx11-dev libxext-dev \
libxrandr-dev libxcursor-dev libxi-dev libxinerama-dev libxxf86vm-dev \
libxss-dev libgl1-mesa-dev libesd0-dev libdbus-1-dev libudev-dev \
libgles1-mesa-dev libgles2-mesa-dev libegl1-mesa-dev libibus-1.0-dev \
fcitx-libs-dev libsamplerate0-dev libsndio-dev
Ubuntu 16.04+ can also add "libwayland-dev libxkbcommon-dev wayland-protocols"
to that command line for Wayland support.
Ubuntu 16.10 can also add "libmirclient-dev libxkbcommon-dev" to that command
line for Mir support.
NOTES:
- This includes all the audio targets except arts, because Ubuntu pulled the
artsc0-dev package, but in theory SDL still supports it.
- libsamplerate0-dev lets SDL optionally link to libresamplerate at runtime
for higher-quality audio resampling. SDL will work without it if the library
is missing, so it's safe to build in support even if the end user doesn't
have this library installed.
- DirectFB isn't included because the configure script (currently) fails to find
it at all. You can do "sudo apt-get install libdirectfb-dev" and fix the
configure script to include DirectFB support. Send patches. :)
================================================================================
Joystick does not work
================================================================================
If you compiled or are using a version of SDL with udev support (and you should!)
there's a few issues that may cause SDL to fail to detect your joystick. To
debug this, start by installing the evtest utility. On Ubuntu/Debian:
sudo apt-get install evtest
Then run:
sudo evtest
You'll hopefully see your joystick listed along with a name like "/dev/input/eventXX"
Now run:
cat /dev/input/event/XX
If you get a permission error, you need to set a udev rule to change the mode of
your device (see below)
Also, try:
sudo udevadm info --query=all --name=input/eventXX
If you see a line stating ID_INPUT_JOYSTICK=1, great, if you don't see it,
you need to set up an udev rule to force this variable.
A combined rule for the Saitek Pro Flight Rudder Pedals to fix both issues looks
like:
SUBSYSTEM=="input", ATTRS{idProduct}=="0763", ATTRS{idVendor}=="06a3", MODE="0666", ENV{ID_INPUT_JOYSTICK}="1"
SUBSYSTEM=="input", ATTRS{idProduct}=="0764", ATTRS{idVendor}=="06a3", MODE="0666", ENV{ID_INPUT_JOYSTICK}="1"
You can set up similar rules for your device by changing the values listed in
idProduct and idVendor. To obtain these values, try:
sudo udevadm info -a --name=input/eventXX | grep idVendor
sudo udevadm info -a --name=input/eventXX | grep idProduct
If multiple values come up for each of these, the one you want is the first one of each.
On other systems which ship with an older udev (such as CentOS), you may need
to set up a rule such as:
SUBSYSTEM=="input", ENV{ID_CLASS}=="joystick", ENV{ID_INPUT_JOYSTICK}="1"

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Mac OS X
==============================================================================
These instructions are for people using Apple's Mac OS X (pronounced
"ten").
From the developer's point of view, OS X is a sort of hybrid Mac and
Unix system, and you have the option of using either traditional
command line tools or Apple's IDE Xcode.
Command Line Build
==================
To build SDL using the command line, use the standard configure and make
process:
./configure
make
sudo make install
You can also build SDL as a Universal library (a single binary for both
32-bit and 64-bit Intel architectures), on Mac OS X 10.7 and newer, by using
the gcc-fat.sh script in build-scripts:
mkdir mybuild
cd mybuild
CC=$PWD/../build-scripts/gcc-fat.sh CXX=$PWD/../build-scripts/g++-fat.sh ../configure
make
sudo make install
This script builds SDL with 10.5 ABI compatibility on i386 and 10.6
ABI compatibility on x86_64 architectures. For best compatibility you
should compile your application the same way.
Please note that building SDL requires at least Xcode 4.6 and the 10.7 SDK
(even if you target back to 10.5 systems). PowerPC support for Mac OS X has
been officially dropped as of SDL 2.0.2.
To use the library once it's built, you essential have two possibilities:
use the traditional autoconf/automake/make method, or use Xcode.
==============================================================================
Caveats for using SDL with Mac OS X
==============================================================================
Some things you have to be aware of when using SDL on Mac OS X:
- If you register your own NSApplicationDelegate (using [NSApp setDelegate:]),
SDL will not register its own. This means that SDL will not terminate using
SDL_Quit if it receives a termination request, it will terminate like a
normal app, and it will not send a SDL_DROPFILE when you request to open a
file with the app. To solve these issues, put the following code in your
NSApplicationDelegate implementation:
- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
{
if (SDL_GetEventState(SDL_QUIT) == SDL_ENABLE) {
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
}
return NSTerminateCancel;
}
- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
{
if (SDL_GetEventState(SDL_DROPFILE) == SDL_ENABLE) {
SDL_Event event;
event.type = SDL_DROPFILE;
event.drop.file = SDL_strdup([filename UTF8String]);
return (SDL_PushEvent(&event) > 0);
}
return NO;
}
==============================================================================
Using the Simple DirectMedia Layer with a traditional Makefile
==============================================================================
An existing autoconf/automake build system for your SDL app has good chances
to work almost unchanged on OS X. However, to produce a "real" Mac OS X binary
that you can distribute to users, you need to put the generated binary into a
so called "bundle", which basically is a fancy folder with a name like
"MyCoolGame.app".
To get this build automatically, add something like the following rule to
your Makefile.am:
bundle_contents = APP_NAME.app/Contents
APP_NAME_bundle: EXE_NAME
mkdir -p $(bundle_contents)/MacOS
mkdir -p $(bundle_contents)/Resources
echo "APPL????" > $(bundle_contents)/PkgInfo
$(INSTALL_PROGRAM) $< $(bundle_contents)/MacOS/
You should replace EXE_NAME with the name of the executable. APP_NAME is what
will be visible to the user in the Finder. Usually it will be the same
as EXE_NAME but capitalized. E.g. if EXE_NAME is "testgame" then APP_NAME
usually is "TestGame". You might also want to use `@PACKAGE@` to use the package
name as specified in your configure.in file.
If your project builds more than one application, you will have to do a bit
more. For each of your target applications, you need a separate rule.
If you want the created bundles to be installed, you may want to add this
rule to your Makefile.am:
install-exec-hook: APP_NAME_bundle
rm -rf $(DESTDIR)$(prefix)/Applications/APP_NAME.app
mkdir -p $(DESTDIR)$(prefix)/Applications/
cp -r $< /$(DESTDIR)$(prefix)Applications/
This rule takes the Bundle created by the rule from step 3 and installs them
into "$(DESTDIR)$(prefix)/Applications/".
Again, if you want to install multiple applications, you will have to augment
the make rule accordingly.
But beware! That is only part of the story! With the above, you end up with
a bare bone .app bundle, which is double clickable from the Finder. But
there are some more things you should do before shipping your product...
1) The bundle right now probably is dynamically linked against SDL. That
means that when you copy it to another computer, *it will not run*,
unless you also install SDL on that other computer. A good solution
for this dilemma is to static link against SDL. On OS X, you can
achieve that by linking against the libraries listed by
sdl-config --static-libs
instead of those listed by
sdl-config --libs
Depending on how exactly SDL is integrated into your build systems, the
way to achieve that varies, so I won't describe it here in detail
2) Add an 'Info.plist' to your application. That is a special XML file which
contains some meta-information about your application (like some copyright
information, the version of your app, the name of an optional icon file,
and other things). Part of that information is displayed by the Finder
when you click on the .app, or if you look at the "Get Info" window.
More information about Info.plist files can be found on Apple's homepage.
As a final remark, let me add that I use some of the techniques (and some
variations of them) in Exult and ScummVM; both are available in source on
the net, so feel free to take a peek at them for inspiration!
==============================================================================
Using the Simple DirectMedia Layer with Xcode
==============================================================================
These instructions are for using Apple's Xcode IDE to build SDL applications.
- First steps
The first thing to do is to unpack the Xcode.tar.gz archive in the
top level SDL directory (where the Xcode.tar.gz archive resides).
Because Stuffit Expander will unpack the archive into a subdirectory,
you should unpack the archive manually from the command line:
cd [path_to_SDL_source]
tar zxf Xcode.tar.gz
This will create a new folder called Xcode, which you can browse
normally from the Finder.
- Building the Framework
The SDL Library is packaged as a framework bundle, an organized
relocatable folder hierarchy of executable code, interface headers,
and additional resources. For practical purposes, you can think of a
framework as a more user and system-friendly shared library, whose library
file behaves more or less like a standard UNIX shared library.
To build the framework, simply open the framework project and build it.
By default, the framework bundle "SDL.framework" is installed in
/Library/Frameworks. Therefore, the testers and project stationary expect
it to be located there. However, it will function the same in any of the
following locations:
~/Library/Frameworks
/Local/Library/Frameworks
/System/Library/Frameworks
- Build Options
There are two "Build Styles" (See the "Targets" tab) for SDL.
"Deployment" should be used if you aren't tweaking the SDL library.
"Development" should be used to debug SDL apps or the library itself.
- Building the Testers
Open the SDLTest project and build away!
- Using the Project Stationary
Copy the stationary to the indicated folders to access it from
the "New Project" and "Add target" menus. What could be easier?
- Setting up a new project by hand
Some of you won't want to use the Stationary so I'll give some tips:
* Create a new "Cocoa Application"
* Add src/main/macosx/SDLMain.m , .h and .nib to your project
* Remove "main.c" from your project
* Remove "MainMenu.nib" from your project
* Add "$(HOME)/Library/Frameworks/SDL.framework/Headers" to include path
* Add "$(HOME)/Library/Frameworks" to the frameworks search path
* Add "-framework SDL -framework Foundation -framework AppKit" to "OTHER_LDFLAGS"
* Set the "Main Nib File" under "Application Settings" to "SDLMain.nib"
* Add your files
* Clean and build
- Building from command line
Use pbxbuild in the same directory as your .pbproj file
- Running your app
You can send command line args to your app by either invoking it from
the command line (in *.app/Contents/MacOS) or by entering them in the
"Executables" panel of the target settings.
- Implementation Notes
Some things that may be of interest about how it all works...
* Working directory
As defined in the SDL_main.m file, the working directory of your SDL app
is by default set to its parent. You may wish to change this to better
suit your needs.
* You have a Cocoa App!
Your SDL app is essentially a Cocoa application. When your app
starts up and the libraries finish loading, a Cocoa procedure is called,
which sets up the working directory and calls your main() method.
You are free to modify your Cocoa app with generally no consequence
to SDL. You cannot, however, easily change the SDL window itself.
Functionality may be added in the future to help this.
Known bugs are listed in the file "BUGS.txt".

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Native Client
================================================================================
Requirements:
* Native Client SDK (https://developer.chrome.com/native-client),
(tested with Pepper version 33 or higher).
The SDL backend for Chrome's Native Client has been tested only with the PNaCl
toolchain, which generates binaries designed to run on ARM and x86_32/64
platforms. This does not mean it won't work with the other toolchains!
================================================================================
Building SDL for NaCl
================================================================================
Set up the right environment variables (see naclbuild.sh), then configure SDL with:
configure --host=pnacl --prefix some/install/destination
Then "make".
As an example of how to create a deployable app a Makefile project is provided
in test/nacl/Makefile, which includes some monkey patching of the common.mk file
provided by NaCl, without which linking properly to SDL won't work (the search
path can't be modified externally, so the linker won't find SDL's binaries unless
you dump them into the SDK path, which is inconvenient).
Also provided in test/nacl is the required support file, such as index.html,
manifest.json, etc.
SDL apps for NaCl run on a worker thread using the ppapi_simple infrastructure.
This allows for blocking calls on all the relevant systems (OpenGL ES, filesystem),
hiding the asynchronous nature of the browser behind the scenes...which is not the
same as making it disappear!
================================================================================
Running tests
================================================================================
Due to the nature of NaCl programs, building and running SDL tests is not as
straightforward as one would hope. The script naclbuild.sh in build-scripts
automates the process and should serve as a guide for users of SDL trying to build
their own applications.
Basic usage:
./naclbuild.sh path/to/pepper/toolchain (i.e. ~/naclsdk/pepper_35)
This will build testgles2.c by default.
If you want to build a different test, for example testrendercopyex.c:
SOURCES=~/sdl/SDL/test/testrendercopyex.c ./naclbuild.sh ~/naclsdk/pepper_35
Once the build finishes, you have to serve the contents with a web server (the
script will give you instructions on how to do that with Python).
================================================================================
RWops and nacl_io
================================================================================
SDL_RWops work transparently with nacl_io. Two functions control the mount points:
int mount(const char* source, const char* target,
const char* filesystemtype,
unsigned long mountflags, const void *data);
int umount(const char *target);
For convenience, SDL will by default mount an httpfs tree at / before calling
the app's main function. Such setting can be overridden by calling:
umount("/");
And then mounting a different filesystem at /
It's important to consider that the asynchronous nature of file operations on a
browser is hidden from the application, effectively providing the developer with
a set of blocking file operations just like you get in a regular desktop
environment, which eases the job of porting to Native Client, but also introduces
a set of challenges of its own, in particular when big file sizes and slow
connections are involved.
For more information on how nacl_io and mount points work, see:
https://developer.chrome.com/native-client/devguide/coding/nacl_io
https://src.chromium.org/chrome/trunk/src/native_client_sdk/src/libraries/nacl_io/nacl_io.h
To be able to save into the directory "/save/" (like backup of game) :
mount("", "/save", "html5fs", 0, "type=PERSISTENT");
And add to manifest.json :
"permissions": [
"unlimitedStorage"
]
================================================================================
TODO - Known Issues
================================================================================
* Testing of all systems with a real application (something other than SDL's tests)
* Key events don't seem to work properly

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Pandora
=====================================================================
( http://openpandora.org/ )
- A pandora specific video driver was written to allow SDL 2.0 with OpenGL ES
support to work on the pandora under the framebuffer. This driver do not have
input support for now, so if you use it you will have to add your own control code.
The video driver name is "pandora" so if you have problem running it from
the framebuffer, try to set the following variable before starting your application :
"export SDL_VIDEODRIVER=pandora"
- OpenGL ES support was added to the x11 driver, so it's working like the normal
x11 driver one with OpenGLX support, with SDL input event's etc..
David Carré (Cpasjuste)
cpasjuste@gmail.com

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Platforms
=========
We maintain the list of supported platforms on our wiki now, and how to
build and install SDL for those platforms:
https://wiki.libsdl.org/Installation

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Porting
=======
* Porting To A New Platform
The first thing you have to do when porting to a new platform, is look at
include/SDL_platform.h and create an entry there for your operating system.
The standard format is "__PLATFORM__", where PLATFORM is the name of the OS.
Ideally SDL_platform.h will be able to auto-detect the system it's building
on based on C preprocessor symbols.
There are two basic ways of building SDL at the moment:
1. The "UNIX" way: ./configure; make; make install
If you have a GNUish system, then you might try this. Edit configure.in,
take a look at the large section labelled:
"Set up the configuration based on the host platform!"
Add a section for your platform, and then re-run autogen.sh and build!
2. Using an IDE:
If you're using an IDE or other non-configure build system, you'll probably
want to create a custom SDL_config.h for your platform. Edit SDL_config.h,
add a section for your platform, and create a custom SDL_config_{platform}.h,
based on SDL_config_minimal.h and SDL_config.h.in
Add the top level include directory to the header search path, and then add
the following sources to the project:
src/*.c
src/atomic/*.c
src/audio/*.c
src/cpuinfo/*.c
src/events/*.c
src/file/*.c
src/haptic/*.c
src/joystick/*.c
src/power/*.c
src/render/*.c
src/render/software/*.c
src/stdlib/*.c
src/thread/*.c
src/timer/*.c
src/video/*.c
src/audio/disk/*.c
src/audio/dummy/*.c
src/filesystem/dummy/*.c
src/video/dummy/*.c
src/haptic/dummy/*.c
src/joystick/dummy/*.c
src/main/dummy/*.c
src/thread/generic/*.c
src/timer/dummy/*.c
src/loadso/dummy/*.c
Once you have a working library without any drivers, you can go back to each
of the major subsystems and start implementing drivers for your platform.
If you have any questions, don't hesitate to ask on the SDL mailing list:
http://www.libsdl.org/mailing-list.php
Enjoy!
Sam Lantinga (slouken@libsdl.org)

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PSP
======
SDL port for the Sony PSP contributed by
Captian Lex
Credit to
Marcus R.Brown,Jim Paris,Matthew H for the original SDL 1.2 for PSP
Geecko for his PSP GU lib "Glib2d"
Building
--------
To build for the PSP, make sure psp-config is in the path and run:
make -f Makefile.psp
To Do
------
PSP Screen Keyboard

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Raspberry Pi
================================================================================
Requirements:
Raspbian (other Linux distros may work as well).
================================================================================
Features
================================================================================
* Works without X11
* Hardware accelerated OpenGL ES 2.x
* Sound via ALSA
* Input (mouse/keyboard/joystick) via EVDEV
* Hotplugging of input devices via UDEV
================================================================================
Raspbian Build Dependencies
================================================================================
sudo apt-get install libudev-dev libasound2-dev libdbus-1-dev
You also need the VideoCore binary stuff that ships in /opt/vc for EGL and
OpenGL ES 2.x, it usually comes pre-installed, but in any case:
sudo apt-get install libraspberrypi0 libraspberrypi-bin libraspberrypi-dev
================================================================================
Cross compiling from x86 Linux
================================================================================
To cross compile SDL for Raspbian from your desktop machine, you'll need a
Raspbian system root and the cross compilation tools. We'll assume these tools
will be placed in /opt/rpi-tools
sudo git clone --depth 1 https://github.com/raspberrypi/tools /opt/rpi-tools
You'll also need a Raspbian binary image.
Get it from: http://downloads.raspberrypi.org/raspbian_latest
After unzipping, you'll get file with a name like: "<date>-wheezy-raspbian.img"
Let's assume the sysroot will be built in /opt/rpi-sysroot.
export SYSROOT=/opt/rpi-sysroot
sudo kpartx -a -v <path_to_raspbian_image>.img
sudo mount -o loop /dev/mapper/loop0p2 /mnt
sudo cp -r /mnt $SYSROOT
sudo apt-get install qemu binfmt-support qemu-user-static
sudo cp /usr/bin/qemu-arm-static $SYSROOT/usr/bin
sudo mount --bind /dev $SYSROOT/dev
sudo mount --bind /proc $SYSROOT/proc
sudo mount --bind /sys $SYSROOT/sys
Now, before chrooting into the ARM sysroot, you'll need to apply a workaround,
edit $SYSROOT/etc/ld.so.preload and comment out all lines in it.
sudo chroot $SYSROOT
apt-get install libudev-dev libasound2-dev libdbus-1-dev libraspberrypi0 libraspberrypi-bin libraspberrypi-dev libx11-dev libxext-dev libxrandr-dev libxcursor-dev libxi-dev libxinerama-dev libxxf86vm-dev libxss-dev
exit
sudo umount $SYSROOT/dev
sudo umount $SYSROOT/proc
sudo umount $SYSROOT/sys
sudo umount /mnt
There's one more fix required, as the libdl.so symlink uses an absolute path
which doesn't quite work in our setup.
sudo rm -rf $SYSROOT/usr/lib/arm-linux-gnueabihf/libdl.so
sudo ln -s ../../../lib/arm-linux-gnueabihf/libdl.so.2 $SYSROOT/usr/lib/arm-linux-gnueabihf/libdl.so
The final step is compiling SDL itself.
export CC="/opt/rpi-tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-gcc --sysroot=$SYSROOT -I$SYSROOT/opt/vc/include -I$SYSROOT/usr/include -I$SYSROOT/opt/vc/include/interface/vcos/pthreads -I$SYSROOT/opt/vc/include/interface/vmcs_host/linux"
cd <SDL SOURCE>
mkdir -p build;cd build
LDFLAGS="-L$SYSROOT/opt/vc/lib" ../configure --with-sysroot=$SYSROOT --host=arm-raspberry-linux-gnueabihf --prefix=$PWD/rpi-sdl2-installed --disable-pulseaudio --disable-esd
make
make install
To be able to deploy this to /usr/local in the Raspbian system you need to fix up a few paths:
perl -w -pi -e "s#$PWD/rpi-sdl2-installed#/usr/local#g;" ./rpi-sdl2-installed/lib/libSDL2.la ./rpi-sdl2-installed/lib/pkgconfig/sdl2.pc ./rpi-sdl2-installed/bin/sdl2-config
================================================================================
Apps don't work or poor video/audio performance
================================================================================
If you get sound problems, buffer underruns, etc, run "sudo rpi-update" to
update the RPi's firmware. Note that doing so will fix these problems, but it
will also render the CMA - Dynamic Memory Split functionality useless.
Also, by default the Raspbian distro configures the GPU RAM at 64MB, this is too
low in general, specially if a 1080p TV is hooked up.
See here how to configure this setting: http://elinux.org/RPiconfig
Using a fixed gpu_mem=128 is the best option (specially if you updated the
firmware, using CMA probably won't work, at least it's the current case).
================================================================================
No input
================================================================================
Make sure you belong to the "input" group.
sudo usermod -aG input `whoami`
================================================================================
No HDMI Audio
================================================================================
If you notice that ALSA works but there's no audio over HDMI, try adding:
hdmi_drive=2
to your config.txt file and reboot.
Reference: http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5062
================================================================================
Text Input API support
================================================================================
The Text Input API is supported, with translation of scan codes done via the
kernel symbol tables. For this to work, SDL needs access to a valid console.
If you notice there's no SDL_TEXTINPUT message being emitted, double check that
your app has read access to one of the following:
* /proc/self/fd/0
* /dev/tty
* /dev/tty[0...6]
* /dev/vc/0
* /dev/console
This is usually not a problem if you run from the physical terminal (as opposed
to running from a pseudo terminal, such as via SSH). If running from a PTS, a
quick workaround is to run your app as root or add yourself to the tty group,
then re-login to the system.
sudo usermod -aG tty `whoami`
The keyboard layout used by SDL is the same as the one the kernel uses.
To configure the layout on Raspbian:
sudo dpkg-reconfigure keyboard-configuration
To configure the locale, which controls which keys are interpreted as letters,
this determining the CAPS LOCK behavior:
sudo dpkg-reconfigure locales
================================================================================
OpenGL problems
================================================================================
If you have desktop OpenGL headers installed at build time in your RPi or cross
compilation environment, support for it will be built in. However, the chipset
does not actually have support for it, which causes issues in certain SDL apps
since the presence of OpenGL support supersedes the ES/ES2 variants.
The workaround is to disable OpenGL at configuration time:
./configure --disable-video-opengl
Or if the application uses the Render functions, you can use the SDL_RENDER_DRIVER
environment variable:
export SDL_RENDER_DRIVER=opengles2
================================================================================
Notes
================================================================================
* When launching apps remotely (via SSH), SDL can prevent local keystrokes from
leaking into the console only if it has root privileges. Launching apps locally
does not suffer from this issue.

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Touch
===========================================================================
System Specific Notes
===========================================================================
Linux:
The linux touch system is currently based off event streams, and proc/bus/devices. The active user must be given permissions to read /dev/input/TOUCHDEVICE, where TOUCHDEVICE is the event stream for your device. Currently only Wacom tablets are supported. If you have an unsupported tablet contact me at jim.tla+sdl_touch@gmail.com and I will help you get support for it.
Mac:
The Mac and iPhone APIs are pretty. If your touch device supports them then you'll be fine. If it doesn't, then there isn't much we can do.
iPhone:
Works out of box.
Windows:
Unfortunately there is no windows support as of yet. Support for Windows 7 is planned, but we currently have no way to test. If you have a Windows 7 WM_TOUCH supported device, and are willing to help test please contact me at jim.tla+sdl_touch@gmail.com
===========================================================================
Events
===========================================================================
SDL_FINGERDOWN:
Sent when a finger (or stylus) is placed on a touch device.
Fields:
* event.tfinger.touchId - the Id of the touch device.
* event.tfinger.fingerId - the Id of the finger which just went down.
* event.tfinger.x - the x coordinate of the touch (0..1)
* event.tfinger.y - the y coordinate of the touch (0..1)
* event.tfinger.pressure - the pressure of the touch (0..1)
SDL_FINGERMOTION:
Sent when a finger (or stylus) is moved on the touch device.
Fields:
Same as SDL_FINGERDOWN but with additional:
* event.tfinger.dx - change in x coordinate during this motion event.
* event.tfinger.dy - change in y coordinate during this motion event.
SDL_FINGERUP:
Sent when a finger (or stylus) is lifted from the touch device.
Fields:
Same as SDL_FINGERDOWN.
===========================================================================
Functions
===========================================================================
SDL provides the ability to access the underlying SDL_Finger structures.
These structures should _never_ be modified.
The following functions are included from SDL_touch.h
To get a SDL_TouchID call SDL_GetTouchDevice(int index).
This returns a SDL_TouchID.
IMPORTANT: If the touch has been removed, or there is no touch with the given index, SDL_GetTouchDevice() will return 0. Be sure to check for this!
The number of touch devices can be queried with SDL_GetNumTouchDevices().
A SDL_TouchID may be used to get pointers to SDL_Finger.
SDL_GetNumTouchFingers(touchID) may be used to get the number of fingers currently down on the device.
The most common reason to access SDL_Finger is to query the fingers outside the event. In most cases accessing the fingers is using the event. This would be accomplished by code like the following:
float x = event.tfinger.x;
float y = event.tfinger.y;
To get a SDL_Finger, call SDL_GetTouchFinger(SDL_TouchID touchID, int index), where touchID is a SDL_TouchID, and index is the requested finger.
This returns a SDL_Finger *, or NULL if the finger does not exist, or has been removed.
A SDL_Finger is guaranteed to be persistent for the duration of a touch, but it will be de-allocated as soon as the finger is removed. This occurs when the SDL_FINGERUP event is _added_ to the event queue, and thus _before_ the SDL_FINGERUP event is polled.
As a result, be very careful to check for NULL return values.
A SDL_Finger has the following fields:
* x, y:
The current coordinates of the touch.
* pressure:
The pressure of the touch.
===========================================================================
Notes
===========================================================================
For a complete example see test/testgesture.c
Please direct questions/comments to:
jim.tla+sdl_touch@gmail.com
(original author, API was changed since)

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WinCE
=====
Windows CE is no longer supported by SDL.
We have left the CE support in SDL 1.2 for those that must have it, and we
have support for Windows Phone 8 and WinRT in SDL2, as of SDL 2.0.3.
--ryan.

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Windows
================================================================================
================================================================================
OpenGL ES 2.x support
================================================================================
SDL has support for OpenGL ES 2.x under Windows via two alternative
implementations.
The most straightforward method consists in running your app in a system with
a graphic card paired with a relatively recent (as of November of 2013) driver
which supports the WGL_EXT_create_context_es2_profile extension. Vendors known
to ship said extension on Windows currently include nVidia and Intel.
The other method involves using the ANGLE library (https://code.google.com/p/angleproject/)
If an OpenGL ES 2.x context is requested and no WGL_EXT_create_context_es2_profile
extension is found, SDL will try to load the libEGL.dll library provided by
ANGLE.
To obtain the ANGLE binaries, you can either compile from source from
https://chromium.googlesource.com/angle/angle or copy the relevant binaries from
a recent Chrome/Chromium install for Windows. The files you need are:
* libEGL.dll
* libGLESv2.dll
* d3dcompiler_46.dll (supports Windows Vista or later, better shader compiler)
or...
* d3dcompiler_43.dll (supports Windows XP or later)
If you compile ANGLE from source, you can configure it so it does not need the
d3dcompiler_* DLL at all (for details on this, see their documentation).
However, by default SDL will try to preload the d3dcompiler_46.dll to
comply with ANGLE's requirements. If you wish SDL to preload d3dcompiler_43.dll (to
support Windows XP) or to skip this step at all, you can use the
SDL_HINT_VIDEO_WIN_D3DCOMPILER hint (see SDL_hints.h for more details).
Known Bugs:
* SDL_GL_SetSwapInterval is currently a no op when using ANGLE. It appears
that there's a bug in the library which prevents the window contents from
refreshing if this is set to anything other than the default value.
Vulkan Surface Support
==============
Support for creating Vulkan surfaces is configured on by default. To disable it change the value of `SDL_VIDEO_VULKAN` to 0 in `SDL_config_windows.h`. You must install the [Vulkan SDK](https://www.lunarg.com/vulkan-sdk/) in order to use Vulkan graphics in your application.

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WinRT
=====
This port allows SDL applications to run on Microsoft's platforms that require
use of "Windows Runtime", aka. "WinRT", APIs. Microsoft may, in some cases,
refer to them as either "Windows Store", or for Windows 10, "UWP" apps.
Some of the operating systems that include WinRT, are:
* Windows 10, via its Universal Windows Platform (UWP) APIs
* Windows 8.x
* Windows RT 8.x (aka. Windows 8.x for ARM processors)
* Windows Phone 8.x
Requirements
------------
* Microsoft Visual C++ (aka Visual Studio), either 2017, 2015, 2013, or 2012
- Free, "Community" or "Express" editions may be used, so long as they
include support for either "Windows Store" or "Windows Phone" apps.
"Express" versions marked as supporting "Windows Desktop" development
typically do not include support for creating WinRT apps, to note.
(The "Community" editions of Visual C++ do, however, support both
desktop/Win32 and WinRT development).
- Visual Studio 2017 can be used, however it is recommented that you install
the Visual C++ 2015 build tools. These build tools can be installed
using VS 2017's installer. Be sure to also install the workload for
"Universal Windows Platform development", its optional component, the
"C++ Universal Windows Platform tools", and for UWP / Windows 10
development, the "Windows 10 SDK (10.0.10240.0)". Please note that
targeting UWP / Windows 10 apps from development machine(s) running
earlier versions of Windows, such as Windows 7, is not always supported
by Visual Studio, and you may get error(s) when attempting to do so.
- Visual C++ 2012 can only build apps that target versions 8.0 of Windows,
or Windows Phone. 8.0-targetted apps will run on devices running 8.1
editions of Windows, however they will not be able to take advantage of
8.1-specific features.
- Visual C++ 2013 cannot create app projects that target Windows 8.0.
Visual C++ 2013 Update 4, can create app projects for Windows Phone 8.0,
Windows Phone 8.1, and Windows 8.1, but not Windows 8.0. An optional
Visual Studio add-in, "Tools for Maintaining Store apps for Windows 8",
allows Visual C++ 2013 to load and build Windows 8.0 projects that were
created with Visual C++ 2012, so long as Visual C++ 2012 is installed
on the same machine. More details on targeting different versions of
Windows can found at the following web pages:
- [Develop apps by using Visual Studio 2013](http://msdn.microsoft.com/en-us/library/windows/apps/br211384.aspx)
- [To add the Tools for Maintaining Store apps for Windows 8](http://msdn.microsoft.com/en-us/library/windows/apps/dn263114.aspx#AddMaintenanceTools)
* A valid Microsoft account - This requirement is not imposed by SDL, but
rather by Microsoft's Visual C++ toolchain. This is required to launch or
debug apps.
Status
------
Here is a rough list of what works, and what doens't:
* What works:
* compilation via Visual C++ 2012 through 2015
* compile-time platform detection for SDL programs. The C/C++ #define,
`__WINRT__`, will be set to 1 (by SDL) when compiling for WinRT.
* GPU-accelerated 2D rendering, via SDL_Renderer.
* OpenGL ES 2, via the ANGLE library (included separately from SDL)
* software rendering, via either SDL_Surface (optionally in conjunction with
SDL_GetWindowSurface() and SDL_UpdateWindowSurface()) or via the
SDL_Renderer APIs
* threads
* timers (via SDL_GetTicks(), SDL_AddTimer(), SDL_GetPerformanceCounter(),
SDL_GetPerformanceFrequency(), etc.)
* file I/O via SDL_RWops
* mouse input (unsupported on Windows Phone)
* audio, via a modified version of SDL's XAudio2 backend
* .DLL file loading. Libraries *MUST* be packaged inside applications. Loading
anything outside of the app is not supported.
* system path retrieval via SDL's filesystem APIs
* game controllers. Support is provided via the SDL_Joystick and
SDL_GameController APIs, and is backed by Microsoft's XInput API. Please
note, however, that Windows limits game-controller support in UWP apps to,
"Xbox compatible controllers" (many controllers that work in Win32 apps,
do not work in UWP, due to restrictions in UWP itself.)
* multi-touch input
* app events. SDL_APP_WILLENTER* and SDL_APP_DIDENTER* events get sent out as
appropriate.
* window events
* using Direct3D 11.x APIs outside of SDL. Non-XAML / Direct3D-only apps can
choose to render content directly via Direct3D, using SDL to manage the
internal WinRT window, as well as input and audio. (Use
SDL_GetWindowWMInfo() to get the WinRT 'CoreWindow', and pass it into
IDXGIFactory2::CreateSwapChainForCoreWindow() as appropriate.)
* What partially works:
* keyboard input. Most of WinRT's documented virtual keys are supported, as
well as many keys with documented hardware scancodes. Converting
SDL_Scancodes to or from SDL_Keycodes may not work, due to missing APIs
(MapVirtualKey()) in Microsoft's Windows Store / UWP APIs.
* SDLmain. WinRT uses a different signature for each app's main() function.
SDL-based apps that use this port must compile in SDL_winrt_main_NonXAML.cpp
(in `SDL\src\main\winrt\`) directly in order for their C-style main()
functions to be called.
* What doesn't work:
* compilation with anything other than Visual C++
* programmatically-created custom cursors. These don't appear to be supported
by WinRT. Different OS-provided cursors can, however, be created via
SDL_CreateSystemCursor() (unsupported on Windows Phone)
* SDL_WarpMouseInWindow() or SDL_WarpMouseGlobal(). This are not currently
supported by WinRT itself.
* joysticks and game controllers that either are not supported by
Microsoft's XInput API, or are not supported within UWP apps (many
controllers that work in Win32, do not work in UWP, due to restrictions in
UWP itself).
* turning off VSync when rendering on Windows Phone. Attempts to turn VSync
off on Windows Phone result either in Direct3D not drawing anything, or it
forcing VSync back on. As such, SDL_RENDERER_PRESENTVSYNC will always get
turned-on on Windows Phone. This limitation is not present in non-Phone
WinRT (such as Windows 8.x), where turning off VSync appears to work.
* probably anything else that's not listed as supported
Upgrade Notes
-------------
#### SDL_GetPrefPath() usage when upgrading WinRT apps from SDL 2.0.3
SDL 2.0.4 fixes two bugs found in the WinRT version of SDL_GetPrefPath().
The fixes may affect older, SDL 2.0.3-based apps' save data. Please note
that these changes only apply to SDL-based WinRT apps, and not to apps for
any other platform.
1. SDL_GetPrefPath() would return an invalid path, one in which the path's
directory had not been created. Attempts to create files there
(via fopen(), for example), would fail, unless that directory was
explicitly created beforehand.
2. SDL_GetPrefPath(), for non-WinPhone-based apps, would return a path inside
a WinRT 'Roaming' folder, the contents of which get automatically
synchronized across multiple devices. This process can occur while an
application runs, and can cause existing save-data to be overwritten
at unexpected times, with data from other devices. (Windows Phone apps
written with SDL 2.0.3 did not utilize a Roaming folder, due to API
restrictions in Windows Phone 8.0).
SDL_GetPrefPath(), starting with SDL 2.0.4, addresses these by:
1. making sure that SDL_GetPrefPath() returns a directory in which data
can be written to immediately, without first needing to create directories.
2. basing SDL_GetPrefPath() off of a different, non-Roaming folder, the
contents of which do not automatically get synchronized across devices
(and which require less work to use safely, in terms of data integrity).
Apps that wish to get their Roaming folder's path can do so either by using
SDL_WinRTGetFSPathUTF8(), SDL_WinRTGetFSPathUNICODE() (which returns a
UCS-2/wide-char string), or directly through the WinRT class,
Windows.Storage.ApplicationData.
Setup, High-Level Steps
-----------------------
The steps for setting up a project for an SDL/WinRT app looks like the
following, at a high-level:
1. create a new Visual C++ project using Microsoft's template for a,
"Direct3D App".
2. remove most of the files from the project.
3. make your app's project directly reference SDL/WinRT's own Visual C++
project file, via use of Visual C++'s "References" dialog. This will setup
the linker, and will copy SDL's .dll files to your app's final output.
4. adjust your app's build settings, at minimum, telling it where to find SDL's
header files.
5. add files that contains a WinRT-appropriate main function, along with some
data to make sure mouse-cursor-hiding (via SDL_ShowCursor(SDL_DISABLE) calls)
work properly.
6. add SDL-specific app code.
7. build and run your app.
Setup, Detailed Steps
---------------------
### 1. Create a new project ###
Create a new project using one of Visual C++'s templates for a plain, non-XAML,
"Direct3D App" (XAML support for SDL/WinRT is not yet ready for use). If you
don't see one of these templates, in Visual C++'s 'New Project' dialog, try
using the textbox titled, 'Search Installed Templates' to look for one.
### 2. Remove unneeded files from the project ###
In the new project, delete any file that has one of the following extensions:
- .cpp
- .h
- .hlsl
When you are done, you should be left with a few files, each of which will be a
necessary part of your app's project. These files will consist of:
- an .appxmanifest file, which contains metadata on your WinRT app. This is
similar to an Info.plist file on iOS, or an AndroidManifest.xml on Android.
- a few .png files, one of which is a splash screen (displayed when your app
launches), others are app icons.
- a .pfx file, used for code signing purposes.
### 3. Add references to SDL's project files ###
SDL/WinRT can be built in multiple variations, spanning across three different
CPU architectures (x86, x64, and ARM) and two different configurations
(Debug and Release). WinRT and Visual C++ do not currently provide a means
for combining multiple variations of one library into a single file.
Furthermore, it does not provide an easy means for copying pre-built .dll files
into your app's final output (via Post-Build steps, for example). It does,
however, provide a system whereby an app can reference the MSVC projects of
libraries such that, when the app is built:
1. each library gets built for the appropriate CPU architecture(s) and WinRT
platform(s).
2. each library's output, such as .dll files, get copied to the app's build
output.
To set this up for SDL/WinRT, you'll need to run through the following steps:
1. open up the Solution Explorer inside Visual C++ (under the "View" menu, then
"Solution Explorer")
2. right click on your app's solution.
3. navigate to "Add", then to "Existing Project..."
4. find SDL/WinRT's Visual C++ project file and open it. Different project
files exist for different WinRT platforms. All of them are in SDL's
source distribution, in the following directories:
* `VisualC-WinRT/UWP_VS2015/` - for Windows 10 / UWP apps
* `VisualC-WinRT/WinPhone81_VS2013/` - for Windows Phone 8.1 apps
* `VisualC-WinRT/WinRT80_VS2012/` - for Windows 8.0 apps
* `VisualC-WinRT/WinRT81_VS2013/` - for Windows 8.1 apps
5. once the project has been added, right-click on your app's project and
select, "References..."
6. click on the button titled, "Add New Reference..."
7. check the box next to SDL
8. click OK to close the dialog
9. SDL will now show up in the list of references. Click OK to close that
dialog.
Your project is now linked to SDL's project, insofar that when the app is
built, SDL will be built as well, with its build output getting included with
your app.
### 4. Adjust Your App's Build Settings ###
Some build settings need to be changed in your app's project. This guide will
outline the following:
- making sure that the compiler knows where to find SDL's header files
- **Optional for C++, but NECESSARY for compiling C code:** telling the
compiler not to use Microsoft's C++ extensions for WinRT development.
- **Optional:** telling the compiler not generate errors due to missing
precompiled header files.
To change these settings:
1. right-click on the project
2. choose "Properties"
3. in the drop-down box next to "Configuration", choose, "All Configurations"
4. in the drop-down box next to "Platform", choose, "All Platforms"
5. in the left-hand list, expand the "C/C++" section
6. select "General"
7. edit the "Additional Include Directories" setting, and add a path to SDL's
"include" directory
8. **Optional: to enable compilation of C code:** change the setting for
"Consume Windows Runtime Extension" from "Yes (/ZW)" to "No". If you're
working with a completely C++ based project, this step can usually be
omitted.
9. **Optional: to disable precompiled headers (which can produce
'stdafx.h'-related build errors, if setup incorrectly:** in the left-hand
list, select "Precompiled Headers", then change the setting for "Precompiled
Header" from "Use (/Yu)" to "Not Using Precompiled Headers".
10. close the dialog, saving settings, by clicking the "OK" button
### 5. Add a WinRT-appropriate main function, and a blank-cursor image, to the app. ###
A few files should be included directly in your app's MSVC project, specifically:
1. a WinRT-appropriate main function (which is different than main() functions on
other platforms)
2. a Win32-style cursor resource, used by SDL_ShowCursor() to hide the mouse cursor
(if and when the app needs to do so). *If this cursor resource is not
included, mouse-position reporting may fail if and when the cursor is
hidden, due to possible bugs/design-oddities in Windows itself.*
To include these files:
1. right-click on your project (again, in Visual C++'s Solution Explorer),
navigate to "Add", then choose "Existing Item...".
2. navigate to the directory containing SDL's source code, then into its
subdirectory, 'src/main/winrt/'. Select, then add, the following files:
- `SDL_winrt_main_NonXAML.cpp`
- `SDL2-WinRTResources.rc`
- `SDL2-WinRTResource_BlankCursor.cur`
3. right-click on the file `SDL_winrt_main_NonXAML.cpp` (as listed in your
project), then click on "Properties...".
4. in the drop-down box next to "Configuration", choose, "All Configurations"
5. in the drop-down box next to "Platform", choose, "All Platforms"
6. in the left-hand list, click on "C/C++"
7. change the setting for "Consume Windows Runtime Extension" to "Yes (/ZW)".
8. click the OK button. This will close the dialog.
**NOTE: C++/CX compilation is currently required in at least one file of your
app's project. This is to make sure that Visual C++'s linker builds a 'Windows
Metadata' file (.winmd) for your app. Not doing so can lead to build errors.**
### 6. Add app code and assets ###
At this point, you can add in SDL-specific source code. Be sure to include a
C-style main function (ie: `int main(int argc, char *argv[])`). From there you
should be able to create a single `SDL_Window` (WinRT apps can only have one
window, at present), as well as an `SDL_Renderer`. Direct3D will be used to
draw content. Events are received via SDL's usual event functions
(`SDL_PollEvent`, etc.) If you have a set of existing source files and assets,
you can start adding them to the project now. If not, or if you would like to
make sure that you're setup correctly, some short and simple sample code is
provided below.
#### 6.A. ... when creating a new app ####
If you are creating a new app (rather than porting an existing SDL-based app),
or if you would just like a simple app to test SDL/WinRT with before trying to
get existing code working, some working SDL/WinRT code is provided below. To
set this up:
1. right click on your app's project
2. select Add, then New Item. An "Add New Item" dialog will show up.
3. from the left-hand list, choose "Visual C++"
4. from the middle/main list, choose "C++ File (.cpp)"
5. near the bottom of the dialog, next to "Name:", type in a name for your
source file, such as, "main.cpp".
6. click on the Add button. This will close the dialog, add the new file to
your project, and open the file in Visual C++'s text editor.
7. Copy and paste the following code into the new file, then save it.
#include <SDL.h>
int main(int argc, char **argv)
{
SDL_DisplayMode mode;
SDL_Window * window = NULL;
SDL_Renderer * renderer = NULL;
SDL_Event evt;
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
return 1;
}
if (SDL_GetCurrentDisplayMode(0, &mode) != 0) {
return 1;
}
if (SDL_CreateWindowAndRenderer(mode.w, mode.h, SDL_WINDOW_FULLSCREEN, &window, &renderer) != 0) {
return 1;
}
while (1) {
while (SDL_PollEvent(&evt)) {
}
SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255);
SDL_RenderClear(renderer);
SDL_RenderPresent(renderer);
}
}
#### 6.B. Adding code and assets ####
If you have existing code and assets that you'd like to add, you should be able
to add them now. The process for adding a set of files is as such.
1. right click on the app's project
2. select Add, then click on "New Item..."
3. open any source, header, or asset files as appropriate. Support for C and
C++ is available.
Do note that WinRT only supports a subset of the APIs that are available to
Win32-based apps. Many portions of the Win32 API and the C runtime are not
available.
A list of unsupported C APIs can be found at
<http://msdn.microsoft.com/en-us/library/windows/apps/jj606124.aspx>
General information on using the C runtime in WinRT can be found at
<https://msdn.microsoft.com/en-us/library/hh972425.aspx>
A list of supported Win32 APIs for WinRT apps can be found at
<http://msdn.microsoft.com/en-us/library/windows/apps/br205757.aspx>. To note,
the list of supported Win32 APIs for Windows Phone 8.0 is different.
That list can be found at
<http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj662956(v=vs.105).aspx>
### 7. Build and run your app ###
Your app project should now be setup, and you should be ready to build your app.
To run it on the local machine, open the Debug menu and choose "Start
Debugging". This will build your app, then run your app full-screen. To switch
out of your app, press the Windows key. Alternatively, you can choose to run
your app in a window. To do this, before building and running your app, find
the drop-down menu in Visual C++'s toolbar that says, "Local Machine". Expand
this by clicking on the arrow on the right side of the list, then click on
Simulator. Once you do that, any time you build and run the app, the app will
launch in window, rather than full-screen.
#### 7.A. Running apps on older, ARM-based, "Windows RT" devices ####
**These instructions do not include Windows Phone, despite Windows Phone
typically running on ARM processors.** They are specifically for devices
that use the "Windows RT" operating system, which was a modified version of
Windows 8.x that ran primarily on ARM-based tablet computers.
To build and run the app on ARM-based, "Windows RT" devices, you'll need to:
- install Microsoft's "Remote Debugger" on the device. Visual C++ installs and
debugs ARM-based apps via IP networks.
- change a few options on the development machine, both to make sure it builds
for ARM (rather than x86 or x64), and to make sure it knows how to find the
Windows RT device (on the network).
Microsoft's Remote Debugger can be found at
<https://msdn.microsoft.com/en-us/library/hh441469.aspx>. Please note
that separate versions of this debugger exist for different versions of Visual
C++, one each for MSVC 2015, 2013, and 2012.
To setup Visual C++ to launch your app on an ARM device:
1. make sure the Remote Debugger is running on your ARM device, and that it's on
the same IP network as your development machine.
2. from Visual C++'s toolbar, find a drop-down menu that says, "Win32". Click
it, then change the value to "ARM".
3. make sure Visual C++ knows the hostname or IP address of the ARM device. To
do this:
1. open the app project's properties
2. select "Debugging"
3. next to "Machine Name", enter the hostname or IP address of the ARM
device
4. if, and only if, you've turned off authentication in the Remote Debugger,
then change the setting for "Require Authentication" to No
5. click "OK"
4. build and run the app (from Visual C++). The first time you do this, a
prompt will show up on the ARM device, asking for a Microsoft Account. You
do, unfortunately, need to log in here, and will need to follow the
subsequent registration steps in order to launch the app. After you do so,
if the app didn't already launch, try relaunching it again from within Visual
C++.
Troubleshooting
---------------
#### Build fails with message, "error LNK2038: mismatch detected for 'vccorlib_lib_should_be_specified_before_msvcrt_lib_to_linker'"
Try adding the following to your linker flags. In MSVC, this can be done by
right-clicking on the app project, navigating to Configuration Properties ->
Linker -> Command Line, then adding them to the Additional Options
section.
* For Release builds / MSVC-Configurations, add:
/nodefaultlib:vccorlib /nodefaultlib:msvcrt vccorlib.lib msvcrt.lib
* For Debug builds / MSVC-Configurations, add:
/nodefaultlib:vccorlibd /nodefaultlib:msvcrtd vccorlibd.lib msvcrtd.lib
#### Mouse-motion events fail to get sent, or SDL_GetMouseState() fails to return updated values
This may be caused by a bug in Windows itself, whereby hiding the mouse
cursor can cause mouse-position reporting to fail.
SDL provides a workaround for this, but it requires that an app links to a
set of Win32-style cursor image-resource files. A copy of suitable resource
files can be found in `src/main/winrt/`. Adding them to an app's Visual C++
project file should be sufficient to get the app to use them.
#### SDL's Visual Studio project file fails to open, with message, "The system can't find the file specified."
This can be caused for any one of a few reasons, which Visual Studio can
report, but won't always do so in an up-front manner.
To help determine why this error comes up:
1. open a copy of Visual Studio without opening a project file. This can be
accomplished via Windows' Start Menu, among other means.
2. show Visual Studio's Output window. This can be done by going to VS'
menu bar, then to View, and then to Output.
3. try opening the SDL project file directly by going to VS' menu bar, then
to File, then to Open, then to Project/Solution. When a File-Open dialog
appears, open the SDL project (such as the one in SDL's source code, in its
directory, VisualC-WinRT/UWP_VS2015/).
4. after attempting to open SDL's Visual Studio project file, additional error
information will be output to the Output window.
If Visual Studio reports (via its Output window) that the project:
"could not be loaded because it's missing install components. To fix this launch Visual Studio setup with the following selections:
Microsoft.VisualStudio.ComponentGroup.UWP.VC"
... then you will need to re-launch Visual Studio's installer, and make sure that
the workflow for "Universal Windows Platform development" is checked, and that its
optional component, "C++ Universal Windows Platform tools" is also checked. While
you are there, if you are planning on targeting UWP / Windows 10, also make sure
that you check the optional component, "Windows 10 SDK (10.0.10240.0)". After
making sure these items are checked as-appropriate, install them.
Once you install these components, try re-launching Visual Studio, and re-opening
the SDL project file. If you still get the error dialog, try using the Output
window, again, seeing what Visual Studio says about it.
#### Game controllers / joysticks aren't working!
Windows only permits certain game controllers and joysticks to work within
WinRT / UWP apps. Even if a game controller or joystick works in a Win32
app, that device is not guaranteed to work inside a WinRT / UWP app.
According to Microsoft, "Xbox compatible controllers" should work inside
UWP apps, potentially with more working in the future. This includes, but
may not be limited to, Microsoft-made Xbox controllers and USB adapters.
(Source: https://social.msdn.microsoft.com/Forums/en-US/9064838b-e8c3-4c18-8a83-19bf0dfe150d/xinput-fails-to-detect-game-controllers?forum=wpdevelop)

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Simple DirectMedia Layer {#mainpage}
========================
(SDL)
Version 2.0
---
http://www.libsdl.org/
Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.
SDL officially supports Windows, Mac OS X, Linux, iOS, and Android.
Support for other platforms may be found in the source code.
SDL is written in C, works natively with C++, and there are bindings
available for several other languages, including C# and Python.
This library is distributed under the zlib license, which can be found
in the file "COPYING.txt".
The best way to learn how to use SDL is to check out the header files in
the "include" subdirectory and the programs in the "test" subdirectory.
The header files and test programs are well commented and always up to date.
More documentation and FAQs are available online at [the wiki](http://wiki.libsdl.org/)
- [Android](README-android.md)
- [CMake](README-cmake.md)
- [DirectFB](README-directfb.md)
- [DynAPI](README-dynapi.md)
- [Emscripten](README-emscripten.md)
- [Gesture](README-gesture.md)
- [Mercurial](README-hg.md)
- [iOS](README-ios.md)
- [Linux](README-linux.md)
- [OS X](README-macosx.md)
- [Native Client](README-nacl.md)
- [Pandora](README-pandora.md)
- [Supported Platforms](README-platforms.md)
- [Porting information](README-porting.md)
- [PSP](README-psp.md)
- [Raspberry Pi](README-raspberrypi.md)
- [Touch](README-touch.md)
- [WinCE](README-wince.md)
- [Windows](README-windows.md)
- [WinRT](README-winrt.md)
If you need help with the library, or just want to discuss SDL related
issues, you can join the [developers mailing list](http://www.libsdl.org/mailing-list.php)
If you want to report bugs or contribute patches, please submit them to
[bugzilla](https://bugzilla.libsdl.org/)
Enjoy!
Sam Lantinga <mailto:slouken@libsdl.org>

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#!/bin/sh
prefix=/usr/local/i686-w64-mingw32
exec_prefix=${prefix}
exec_prefix_set=no
libdir=${exec_prefix}/lib
#usage="\
#Usage: $0 [--prefix[=DIR]] [--exec-prefix[=DIR]] [--version] [--cflags] [--libs]"
usage="\
Usage: $0 [--prefix[=DIR]] [--exec-prefix[=DIR]] [--version] [--cflags] [--libs] [--static-libs]"
if test $# -eq 0; then
echo "${usage}" 1>&2
exit 1
fi
while test $# -gt 0; do
case "$1" in
-*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
*) optarg= ;;
esac
case $1 in
--prefix=*)
prefix=$optarg
if test $exec_prefix_set = no ; then
exec_prefix=$optarg
fi
;;
--prefix)
echo $prefix
;;
--exec-prefix=*)
exec_prefix=$optarg
exec_prefix_set=yes
;;
--exec-prefix)
echo $exec_prefix
;;
--version)
echo 2.0.7
;;
--cflags)
echo -I${prefix}/include/SDL2 -Dmain=SDL_main
;;
--libs)
echo -L${exec_prefix}/lib -lmingw32 -lSDL2main -lSDL2 -mwindows
;;
--static-libs)
# --libs|--static-libs)
echo -L${exec_prefix}/lib -lmingw32 -lSDL2main -lSDL2 -mwindows -Wl,--no-undefined -lm -ldinput8 -ldxguid -ldxerr8 -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -static-libgcc
;;
*)
echo "${usage}" 1>&2
exit 1
;;
esac
shift
done

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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL.h
*
* Main include header for the SDL library
*/
#ifndef SDL_h_
#define SDL_h_
#include "SDL_main.h"
#include "SDL_stdinc.h"
#include "SDL_assert.h"
#include "SDL_atomic.h"
#include "SDL_audio.h"
#include "SDL_clipboard.h"
#include "SDL_cpuinfo.h"
#include "SDL_endian.h"
#include "SDL_error.h"
#include "SDL_events.h"
#include "SDL_filesystem.h"
#include "SDL_gamecontroller.h"
#include "SDL_haptic.h"
#include "SDL_hints.h"
#include "SDL_joystick.h"
#include "SDL_loadso.h"
#include "SDL_log.h"
#include "SDL_messagebox.h"
#include "SDL_mutex.h"
#include "SDL_power.h"
#include "SDL_render.h"
#include "SDL_rwops.h"
#include "SDL_shape.h"
#include "SDL_system.h"
#include "SDL_thread.h"
#include "SDL_timer.h"
#include "SDL_version.h"
#include "SDL_video.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* As of version 0.5, SDL is loaded dynamically into the application */
/**
* \name SDL_INIT_*
*
* These are the flags which may be passed to SDL_Init(). You should
* specify the subsystems which you will be using in your application.
*/
/* @{ */
#define SDL_INIT_TIMER 0x00000001u
#define SDL_INIT_AUDIO 0x00000010u
#define SDL_INIT_VIDEO 0x00000020u /**< SDL_INIT_VIDEO implies SDL_INIT_EVENTS */
#define SDL_INIT_JOYSTICK 0x00000200u /**< SDL_INIT_JOYSTICK implies SDL_INIT_EVENTS */
#define SDL_INIT_HAPTIC 0x00001000u
#define SDL_INIT_GAMECONTROLLER 0x00002000u /**< SDL_INIT_GAMECONTROLLER implies SDL_INIT_JOYSTICK */
#define SDL_INIT_EVENTS 0x00004000u
#define SDL_INIT_NOPARACHUTE 0x00100000u /**< compatibility; this flag is ignored. */
#define SDL_INIT_EVERYTHING ( \
SDL_INIT_TIMER | SDL_INIT_AUDIO | SDL_INIT_VIDEO | SDL_INIT_EVENTS | \
SDL_INIT_JOYSTICK | SDL_INIT_HAPTIC | SDL_INIT_GAMECONTROLLER \
)
/* @} */
/**
* This function initializes the subsystems specified by \c flags
*/
extern DECLSPEC int SDLCALL SDL_Init(Uint32 flags);
/**
* This function initializes specific SDL subsystems
*
* Subsystem initialization is ref-counted, you must call
* SDL_QuitSubSystem() for each SDL_InitSubSystem() to correctly
* shutdown a subsystem manually (or call SDL_Quit() to force shutdown).
* If a subsystem is already loaded then this call will
* increase the ref-count and return.
*/
extern DECLSPEC int SDLCALL SDL_InitSubSystem(Uint32 flags);
/**
* This function cleans up specific SDL subsystems
*/
extern DECLSPEC void SDLCALL SDL_QuitSubSystem(Uint32 flags);
/**
* This function returns a mask of the specified subsystems which have
* previously been initialized.
*
* If \c flags is 0, it returns a mask of all initialized subsystems.
*/
extern DECLSPEC Uint32 SDLCALL SDL_WasInit(Uint32 flags);
/**
* This function cleans up all initialized subsystems. You should
* call it upon all exit conditions.
*/
extern DECLSPEC void SDLCALL SDL_Quit(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_h_ */
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef SDL_assert_h_
#define SDL_assert_h_
#include "SDL_config.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
#ifndef SDL_ASSERT_LEVEL
#ifdef SDL_DEFAULT_ASSERT_LEVEL
#define SDL_ASSERT_LEVEL SDL_DEFAULT_ASSERT_LEVEL
#elif defined(_DEBUG) || defined(DEBUG) || \
(defined(__GNUC__) && !defined(__OPTIMIZE__))
#define SDL_ASSERT_LEVEL 2
#else
#define SDL_ASSERT_LEVEL 1
#endif
#endif /* SDL_ASSERT_LEVEL */
/*
These are macros and not first class functions so that the debugger breaks
on the assertion line and not in some random guts of SDL, and so each
assert can have unique static variables associated with it.
*/
#if defined(_MSC_VER)
/* Don't include intrin.h here because it contains C++ code */
extern void __cdecl __debugbreak(void);
#define SDL_TriggerBreakpoint() __debugbreak()
#elif ( (!defined(__NACL__)) && ((defined(__GNUC__) || defined(__clang__)) && (defined(__i386__) || defined(__x86_64__))) )
#define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "int $3\n\t" )
#elif defined(__386__) && defined(__WATCOMC__)
#define SDL_TriggerBreakpoint() { _asm { int 0x03 } }
#elif defined(HAVE_SIGNAL_H) && !defined(__WATCOMC__)
#include <signal.h>
#define SDL_TriggerBreakpoint() raise(SIGTRAP)
#else
/* How do we trigger breakpoints on this platform? */
#define SDL_TriggerBreakpoint()
#endif
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 supports __func__ as a standard. */
# define SDL_FUNCTION __func__
#elif ((__GNUC__ >= 2) || defined(_MSC_VER) || defined (__WATCOMC__))
# define SDL_FUNCTION __FUNCTION__
#else
# define SDL_FUNCTION "???"
#endif
#define SDL_FILE __FILE__
#define SDL_LINE __LINE__
/*
sizeof (x) makes the compiler still parse the expression even without
assertions enabled, so the code is always checked at compile time, but
doesn't actually generate code for it, so there are no side effects or
expensive checks at run time, just the constant size of what x WOULD be,
which presumably gets optimized out as unused.
This also solves the problem of...
int somevalue = blah();
SDL_assert(somevalue == 1);
...which would cause compiles to complain that somevalue is unused if we
disable assertions.
*/
/* "while (0,0)" fools Microsoft's compiler's /W4 warning level into thinking
this condition isn't constant. And looks like an owl's face! */
#ifdef _MSC_VER /* stupid /W4 warnings. */
#define SDL_NULL_WHILE_LOOP_CONDITION (0,0)
#else
#define SDL_NULL_WHILE_LOOP_CONDITION (0)
#endif
#define SDL_disabled_assert(condition) \
do { (void) sizeof ((condition)); } while (SDL_NULL_WHILE_LOOP_CONDITION)
typedef enum
{
SDL_ASSERTION_RETRY, /**< Retry the assert immediately. */
SDL_ASSERTION_BREAK, /**< Make the debugger trigger a breakpoint. */
SDL_ASSERTION_ABORT, /**< Terminate the program. */
SDL_ASSERTION_IGNORE, /**< Ignore the assert. */
SDL_ASSERTION_ALWAYS_IGNORE /**< Ignore the assert from now on. */
} SDL_AssertState;
typedef struct SDL_AssertData
{
int always_ignore;
unsigned int trigger_count;
const char *condition;
const char *filename;
int linenum;
const char *function;
const struct SDL_AssertData *next;
} SDL_AssertData;
#if (SDL_ASSERT_LEVEL > 0)
/* Never call this directly. Use the SDL_assert* macros. */
extern DECLSPEC SDL_AssertState SDLCALL SDL_ReportAssertion(SDL_AssertData *,
const char *,
const char *, int)
#if defined(__clang__)
#if __has_feature(attribute_analyzer_noreturn)
/* this tells Clang's static analysis that we're a custom assert function,
and that the analyzer should assume the condition was always true past this
SDL_assert test. */
__attribute__((analyzer_noreturn))
#endif
#endif
;
/* the do {} while(0) avoids dangling else problems:
if (x) SDL_assert(y); else blah();
... without the do/while, the "else" could attach to this macro's "if".
We try to handle just the minimum we need here in a macro...the loop,
the static vars, and break points. The heavy lifting is handled in
SDL_ReportAssertion(), in SDL_assert.c.
*/
#define SDL_enabled_assert(condition) \
do { \
while ( !(condition) ) { \
static struct SDL_AssertData sdl_assert_data = { \
0, 0, #condition, 0, 0, 0, 0 \
}; \
const SDL_AssertState sdl_assert_state = SDL_ReportAssertion(&sdl_assert_data, SDL_FUNCTION, SDL_FILE, SDL_LINE); \
if (sdl_assert_state == SDL_ASSERTION_RETRY) { \
continue; /* go again. */ \
} else if (sdl_assert_state == SDL_ASSERTION_BREAK) { \
SDL_TriggerBreakpoint(); \
} \
break; /* not retrying. */ \
} \
} while (SDL_NULL_WHILE_LOOP_CONDITION)
#endif /* enabled assertions support code */
/* Enable various levels of assertions. */
#if SDL_ASSERT_LEVEL == 0 /* assertions disabled */
# define SDL_assert(condition) SDL_disabled_assert(condition)
# define SDL_assert_release(condition) SDL_disabled_assert(condition)
# define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
#elif SDL_ASSERT_LEVEL == 1 /* release settings. */
# define SDL_assert(condition) SDL_disabled_assert(condition)
# define SDL_assert_release(condition) SDL_enabled_assert(condition)
# define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
#elif SDL_ASSERT_LEVEL == 2 /* normal settings. */
# define SDL_assert(condition) SDL_enabled_assert(condition)
# define SDL_assert_release(condition) SDL_enabled_assert(condition)
# define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
#elif SDL_ASSERT_LEVEL == 3 /* paranoid settings. */
# define SDL_assert(condition) SDL_enabled_assert(condition)
# define SDL_assert_release(condition) SDL_enabled_assert(condition)
# define SDL_assert_paranoid(condition) SDL_enabled_assert(condition)
#else
# error Unknown assertion level.
#endif
/* this assertion is never disabled at any level. */
#define SDL_assert_always(condition) SDL_enabled_assert(condition)
typedef SDL_AssertState (SDLCALL *SDL_AssertionHandler)(
const SDL_AssertData* data, void* userdata);
/**
* \brief Set an application-defined assertion handler.
*
* This allows an app to show its own assertion UI and/or force the
* response to an assertion failure. If the app doesn't provide this, SDL
* will try to do the right thing, popping up a system-specific GUI dialog,
* and probably minimizing any fullscreen windows.
*
* This callback may fire from any thread, but it runs wrapped in a mutex, so
* it will only fire from one thread at a time.
*
* Setting the callback to NULL restores SDL's original internal handler.
*
* This callback is NOT reset to SDL's internal handler upon SDL_Quit()!
*
* Return SDL_AssertState value of how to handle the assertion failure.
*
* \param handler Callback function, called when an assertion fails.
* \param userdata A pointer passed to the callback as-is.
*/
extern DECLSPEC void SDLCALL SDL_SetAssertionHandler(
SDL_AssertionHandler handler,
void *userdata);
/**
* \brief Get the default assertion handler.
*
* This returns the function pointer that is called by default when an
* assertion is triggered. This is an internal function provided by SDL,
* that is used for assertions when SDL_SetAssertionHandler() hasn't been
* used to provide a different function.
*
* \return The default SDL_AssertionHandler that is called when an assert triggers.
*/
extern DECLSPEC SDL_AssertionHandler SDLCALL SDL_GetDefaultAssertionHandler(void);
/**
* \brief Get the current assertion handler.
*
* This returns the function pointer that is called when an assertion is
* triggered. This is either the value last passed to
* SDL_SetAssertionHandler(), or if no application-specified function is
* set, is equivalent to calling SDL_GetDefaultAssertionHandler().
*
* \param puserdata Pointer to a void*, which will store the "userdata"
* pointer that was passed to SDL_SetAssertionHandler().
* This value will always be NULL for the default handler.
* If you don't care about this data, it is safe to pass
* a NULL pointer to this function to ignore it.
* \return The SDL_AssertionHandler that is called when an assert triggers.
*/
extern DECLSPEC SDL_AssertionHandler SDLCALL SDL_GetAssertionHandler(void **puserdata);
/**
* \brief Get a list of all assertion failures.
*
* Get all assertions triggered since last call to SDL_ResetAssertionReport(),
* or the start of the program.
*
* The proper way to examine this data looks something like this:
*
* <code>
* const SDL_AssertData *item = SDL_GetAssertionReport();
* while (item) {
* printf("'%s', %s (%s:%d), triggered %u times, always ignore: %s.\\n",
* item->condition, item->function, item->filename,
* item->linenum, item->trigger_count,
* item->always_ignore ? "yes" : "no");
* item = item->next;
* }
* </code>
*
* \return List of all assertions.
* \sa SDL_ResetAssertionReport
*/
extern DECLSPEC const SDL_AssertData * SDLCALL SDL_GetAssertionReport(void);
/**
* \brief Reset the list of all assertion failures.
*
* Reset list of all assertions triggered.
*
* \sa SDL_GetAssertionReport
*/
extern DECLSPEC void SDLCALL SDL_ResetAssertionReport(void);
/* these had wrong naming conventions until 2.0.4. Please update your app! */
#define SDL_assert_state SDL_AssertState
#define SDL_assert_data SDL_AssertData
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_assert_h_ */
/* vi: set ts=4 sw=4 expandtab: */

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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_atomic.h
*
* Atomic operations.
*
* IMPORTANT:
* If you are not an expert in concurrent lockless programming, you should
* only be using the atomic lock and reference counting functions in this
* file. In all other cases you should be protecting your data structures
* with full mutexes.
*
* The list of "safe" functions to use are:
* SDL_AtomicLock()
* SDL_AtomicUnlock()
* SDL_AtomicIncRef()
* SDL_AtomicDecRef()
*
* Seriously, here be dragons!
* ^^^^^^^^^^^^^^^^^^^^^^^^^^^
*
* You can find out a little more about lockless programming and the
* subtle issues that can arise here:
* http://msdn.microsoft.com/en-us/library/ee418650%28v=vs.85%29.aspx
*
* There's also lots of good information here:
* http://www.1024cores.net/home/lock-free-algorithms
* http://preshing.com/
*
* These operations may or may not actually be implemented using
* processor specific atomic operations. When possible they are
* implemented as true processor specific atomic operations. When that
* is not possible the are implemented using locks that *do* use the
* available atomic operations.
*
* All of the atomic operations that modify memory are full memory barriers.
*/
#ifndef SDL_atomic_h_
#define SDL_atomic_h_
#include "SDL_stdinc.h"
#include "SDL_platform.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \name SDL AtomicLock
*
* The atomic locks are efficient spinlocks using CPU instructions,
* but are vulnerable to starvation and can spin forever if a thread
* holding a lock has been terminated. For this reason you should
* minimize the code executed inside an atomic lock and never do
* expensive things like API or system calls while holding them.
*
* The atomic locks are not safe to lock recursively.
*
* Porting Note:
* The spin lock functions and type are required and can not be
* emulated because they are used in the atomic emulation code.
*/
/* @{ */
typedef int SDL_SpinLock;
/**
* \brief Try to lock a spin lock by setting it to a non-zero value.
*
* \param lock Points to the lock.
*
* \return SDL_TRUE if the lock succeeded, SDL_FALSE if the lock is already held.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTryLock(SDL_SpinLock *lock);
/**
* \brief Lock a spin lock by setting it to a non-zero value.
*
* \param lock Points to the lock.
*/
extern DECLSPEC void SDLCALL SDL_AtomicLock(SDL_SpinLock *lock);
/**
* \brief Unlock a spin lock by setting it to 0. Always returns immediately
*
* \param lock Points to the lock.
*/
extern DECLSPEC void SDLCALL SDL_AtomicUnlock(SDL_SpinLock *lock);
/* @} *//* SDL AtomicLock */
/**
* The compiler barrier prevents the compiler from reordering
* reads and writes to globally visible variables across the call.
*/
#if defined(_MSC_VER) && (_MSC_VER > 1200) && !defined(__clang__)
void _ReadWriteBarrier(void);
#pragma intrinsic(_ReadWriteBarrier)
#define SDL_CompilerBarrier() _ReadWriteBarrier()
#elif (defined(__GNUC__) && !defined(__EMSCRIPTEN__)) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x5120))
/* This is correct for all CPUs when using GCC or Solaris Studio 12.1+. */
#define SDL_CompilerBarrier() __asm__ __volatile__ ("" : : : "memory")
#elif defined(__WATCOMC__)
extern _inline void SDL_CompilerBarrier (void);
#pragma aux SDL_CompilerBarrier = "" parm [] modify exact [];
#else
#define SDL_CompilerBarrier() \
{ SDL_SpinLock _tmp = 0; SDL_AtomicLock(&_tmp); SDL_AtomicUnlock(&_tmp); }
#endif
/**
* Memory barriers are designed to prevent reads and writes from being
* reordered by the compiler and being seen out of order on multi-core CPUs.
*
* A typical pattern would be for thread A to write some data and a flag,
* and for thread B to read the flag and get the data. In this case you
* would insert a release barrier between writing the data and the flag,
* guaranteeing that the data write completes no later than the flag is
* written, and you would insert an acquire barrier between reading the
* flag and reading the data, to ensure that all the reads associated
* with the flag have completed.
*
* In this pattern you should always see a release barrier paired with
* an acquire barrier and you should gate the data reads/writes with a
* single flag variable.
*
* For more information on these semantics, take a look at the blog post:
* http://preshing.com/20120913/acquire-and-release-semantics
*/
extern DECLSPEC void SDLCALL SDL_MemoryBarrierReleaseFunction(void);
extern DECLSPEC void SDLCALL SDL_MemoryBarrierAcquireFunction(void);
#if defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
#define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("lwsync" : : : "memory")
#define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("lwsync" : : : "memory")
#elif defined(__GNUC__) && defined(__arm__)
#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
#define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("dmb ish" : : : "memory")
#define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("dmb ish" : : : "memory")
#elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_5TE__)
#ifdef __thumb__
/* The mcr instruction isn't available in thumb mode, use real functions */
#define SDL_MemoryBarrierRelease() SDL_MemoryBarrierReleaseFunction()
#define SDL_MemoryBarrierAcquire() SDL_MemoryBarrierAcquireFunction()
#else
#define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r"(0) : "memory")
#define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r"(0) : "memory")
#endif /* __thumb__ */
#else
#define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("" : : : "memory")
#define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("" : : : "memory")
#endif /* __GNUC__ && __arm__ */
#else
#if (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x5120))
/* This is correct for all CPUs on Solaris when using Solaris Studio 12.1+. */
#include <mbarrier.h>
#define SDL_MemoryBarrierRelease() __machine_rel_barrier()
#define SDL_MemoryBarrierAcquire() __machine_acq_barrier()
#else
/* This is correct for the x86 and x64 CPUs, and we'll expand this over time. */
#define SDL_MemoryBarrierRelease() SDL_CompilerBarrier()
#define SDL_MemoryBarrierAcquire() SDL_CompilerBarrier()
#endif
#endif
/**
* \brief A type representing an atomic integer value. It is a struct
* so people don't accidentally use numeric operations on it.
*/
typedef struct { int value; } SDL_atomic_t;
/**
* \brief Set an atomic variable to a new value if it is currently an old value.
*
* \return SDL_TRUE if the atomic variable was set, SDL_FALSE otherwise.
*
* \note If you don't know what this function is for, you shouldn't use it!
*/
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCAS(SDL_atomic_t *a, int oldval, int newval);
/**
* \brief Set an atomic variable to a value.
*
* \return The previous value of the atomic variable.
*/
extern DECLSPEC int SDLCALL SDL_AtomicSet(SDL_atomic_t *a, int v);
/**
* \brief Get the value of an atomic variable
*/
extern DECLSPEC int SDLCALL SDL_AtomicGet(SDL_atomic_t *a);
/**
* \brief Add to an atomic variable.
*
* \return The previous value of the atomic variable.
*
* \note This same style can be used for any number operation
*/
extern DECLSPEC int SDLCALL SDL_AtomicAdd(SDL_atomic_t *a, int v);
/**
* \brief Increment an atomic variable used as a reference count.
*/
#ifndef SDL_AtomicIncRef
#define SDL_AtomicIncRef(a) SDL_AtomicAdd(a, 1)
#endif
/**
* \brief Decrement an atomic variable used as a reference count.
*
* \return SDL_TRUE if the variable reached zero after decrementing,
* SDL_FALSE otherwise
*/
#ifndef SDL_AtomicDecRef
#define SDL_AtomicDecRef(a) (SDL_AtomicAdd(a, -1) == 1)
#endif
/**
* \brief Set a pointer to a new value if it is currently an old value.
*
* \return SDL_TRUE if the pointer was set, SDL_FALSE otherwise.
*
* \note If you don't know what this function is for, you shouldn't use it!
*/
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCASPtr(void **a, void *oldval, void *newval);
/**
* \brief Set a pointer to a value atomically.
*
* \return The previous value of the pointer.
*/
extern DECLSPEC void* SDLCALL SDL_AtomicSetPtr(void **a, void* v);
/**
* \brief Get the value of a pointer atomically.
*/
extern DECLSPEC void* SDLCALL SDL_AtomicGetPtr(void **a);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_atomic_h_ */
/* vi: set ts=4 sw=4 expandtab: */

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@ -0,0 +1,825 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_audio.h
*
* Access to the raw audio mixing buffer for the SDL library.
*/
#ifndef SDL_audio_h_
#define SDL_audio_h_
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_endian.h"
#include "SDL_mutex.h"
#include "SDL_thread.h"
#include "SDL_rwops.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief Audio format flags.
*
* These are what the 16 bits in SDL_AudioFormat currently mean...
* (Unspecified bits are always zero).
*
* \verbatim
++-----------------------sample is signed if set
||
|| ++-----------sample is bigendian if set
|| ||
|| || ++---sample is float if set
|| || ||
|| || || +---sample bit size---+
|| || || | |
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
\endverbatim
*
* There are macros in SDL 2.0 and later to query these bits.
*/
typedef Uint16 SDL_AudioFormat;
/**
* \name Audio flags
*/
/* @{ */
#define SDL_AUDIO_MASK_BITSIZE (0xFF)
#define SDL_AUDIO_MASK_DATATYPE (1<<8)
#define SDL_AUDIO_MASK_ENDIAN (1<<12)
#define SDL_AUDIO_MASK_SIGNED (1<<15)
#define SDL_AUDIO_BITSIZE(x) (x & SDL_AUDIO_MASK_BITSIZE)
#define SDL_AUDIO_ISFLOAT(x) (x & SDL_AUDIO_MASK_DATATYPE)
#define SDL_AUDIO_ISBIGENDIAN(x) (x & SDL_AUDIO_MASK_ENDIAN)
#define SDL_AUDIO_ISSIGNED(x) (x & SDL_AUDIO_MASK_SIGNED)
#define SDL_AUDIO_ISINT(x) (!SDL_AUDIO_ISFLOAT(x))
#define SDL_AUDIO_ISLITTLEENDIAN(x) (!SDL_AUDIO_ISBIGENDIAN(x))
#define SDL_AUDIO_ISUNSIGNED(x) (!SDL_AUDIO_ISSIGNED(x))
/**
* \name Audio format flags
*
* Defaults to LSB byte order.
*/
/* @{ */
#define AUDIO_U8 0x0008 /**< Unsigned 8-bit samples */
#define AUDIO_S8 0x8008 /**< Signed 8-bit samples */
#define AUDIO_U16LSB 0x0010 /**< Unsigned 16-bit samples */
#define AUDIO_S16LSB 0x8010 /**< Signed 16-bit samples */
#define AUDIO_U16MSB 0x1010 /**< As above, but big-endian byte order */
#define AUDIO_S16MSB 0x9010 /**< As above, but big-endian byte order */
#define AUDIO_U16 AUDIO_U16LSB
#define AUDIO_S16 AUDIO_S16LSB
/* @} */
/**
* \name int32 support
*/
/* @{ */
#define AUDIO_S32LSB 0x8020 /**< 32-bit integer samples */
#define AUDIO_S32MSB 0x9020 /**< As above, but big-endian byte order */
#define AUDIO_S32 AUDIO_S32LSB
/* @} */
/**
* \name float32 support
*/
/* @{ */
#define AUDIO_F32LSB 0x8120 /**< 32-bit floating point samples */
#define AUDIO_F32MSB 0x9120 /**< As above, but big-endian byte order */
#define AUDIO_F32 AUDIO_F32LSB
/* @} */
/**
* \name Native audio byte ordering
*/
/* @{ */
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define AUDIO_U16SYS AUDIO_U16LSB
#define AUDIO_S16SYS AUDIO_S16LSB
#define AUDIO_S32SYS AUDIO_S32LSB
#define AUDIO_F32SYS AUDIO_F32LSB
#else
#define AUDIO_U16SYS AUDIO_U16MSB
#define AUDIO_S16SYS AUDIO_S16MSB
#define AUDIO_S32SYS AUDIO_S32MSB
#define AUDIO_F32SYS AUDIO_F32MSB
#endif
/* @} */
/**
* \name Allow change flags
*
* Which audio format changes are allowed when opening a device.
*/
/* @{ */
#define SDL_AUDIO_ALLOW_FREQUENCY_CHANGE 0x00000001
#define SDL_AUDIO_ALLOW_FORMAT_CHANGE 0x00000002
#define SDL_AUDIO_ALLOW_CHANNELS_CHANGE 0x00000004
#define SDL_AUDIO_ALLOW_ANY_CHANGE (SDL_AUDIO_ALLOW_FREQUENCY_CHANGE|SDL_AUDIO_ALLOW_FORMAT_CHANGE|SDL_AUDIO_ALLOW_CHANNELS_CHANGE)
/* @} */
/* @} *//* Audio flags */
/**
* This function is called when the audio device needs more data.
*
* \param userdata An application-specific parameter saved in
* the SDL_AudioSpec structure
* \param stream A pointer to the audio data buffer.
* \param len The length of that buffer in bytes.
*
* Once the callback returns, the buffer will no longer be valid.
* Stereo samples are stored in a LRLRLR ordering.
*
* You can choose to avoid callbacks and use SDL_QueueAudio() instead, if
* you like. Just open your audio device with a NULL callback.
*/
typedef void (SDLCALL * SDL_AudioCallback) (void *userdata, Uint8 * stream,
int len);
/**
* The calculated values in this structure are calculated by SDL_OpenAudio().
*
* For multi-channel audio, the default SDL channel mapping is:
* 2: FL FR (stereo)
* 3: FL FR LFE (2.1 surround)
* 4: FL FR BL BR (quad)
* 5: FL FR FC BL BR (quad + center)
* 6: FL FR FC LFE SL SR (5.1 surround - last two can also be BL BR)
* 7: FL FR FC LFE BC SL SR (6.1 surround)
* 8: FL FR FC LFE BL BR SL SR (7.1 surround)
*/
typedef struct SDL_AudioSpec
{
int freq; /**< DSP frequency -- samples per second */
SDL_AudioFormat format; /**< Audio data format */
Uint8 channels; /**< Number of channels: 1 mono, 2 stereo */
Uint8 silence; /**< Audio buffer silence value (calculated) */
Uint16 samples; /**< Audio buffer size in sample FRAMES (total samples divided by channel count) */
Uint16 padding; /**< Necessary for some compile environments */
Uint32 size; /**< Audio buffer size in bytes (calculated) */
SDL_AudioCallback callback; /**< Callback that feeds the audio device (NULL to use SDL_QueueAudio()). */
void *userdata; /**< Userdata passed to callback (ignored for NULL callbacks). */
} SDL_AudioSpec;
struct SDL_AudioCVT;
typedef void (SDLCALL * SDL_AudioFilter) (struct SDL_AudioCVT * cvt,
SDL_AudioFormat format);
/**
* \brief Upper limit of filters in SDL_AudioCVT
*
* The maximum number of SDL_AudioFilter functions in SDL_AudioCVT is
* currently limited to 9. The SDL_AudioCVT.filters array has 10 pointers,
* one of which is the terminating NULL pointer.
*/
#define SDL_AUDIOCVT_MAX_FILTERS 9
/**
* \struct SDL_AudioCVT
* \brief A structure to hold a set of audio conversion filters and buffers.
*
* Note that various parts of the conversion pipeline can take advantage
* of SIMD operations (like SSE2, for example). SDL_AudioCVT doesn't require
* you to pass it aligned data, but can possibly run much faster if you
* set both its (buf) field to a pointer that is aligned to 16 bytes, and its
* (len) field to something that's a multiple of 16, if possible.
*/
#ifdef __GNUC__
/* This structure is 84 bytes on 32-bit architectures, make sure GCC doesn't
pad it out to 88 bytes to guarantee ABI compatibility between compilers.
vvv
The next time we rev the ABI, make sure to size the ints and add padding.
*/
#define SDL_AUDIOCVT_PACKED __attribute__((packed))
#else
#define SDL_AUDIOCVT_PACKED
#endif
/* */
typedef struct SDL_AudioCVT
{
int needed; /**< Set to 1 if conversion possible */
SDL_AudioFormat src_format; /**< Source audio format */
SDL_AudioFormat dst_format; /**< Target audio format */
double rate_incr; /**< Rate conversion increment */
Uint8 *buf; /**< Buffer to hold entire audio data */
int len; /**< Length of original audio buffer */
int len_cvt; /**< Length of converted audio buffer */
int len_mult; /**< buffer must be len*len_mult big */
double len_ratio; /**< Given len, final size is len*len_ratio */
SDL_AudioFilter filters[SDL_AUDIOCVT_MAX_FILTERS + 1]; /**< NULL-terminated list of filter functions */
int filter_index; /**< Current audio conversion function */
} SDL_AUDIOCVT_PACKED SDL_AudioCVT;
/* Function prototypes */
/**
* \name Driver discovery functions
*
* These functions return the list of built in audio drivers, in the
* order that they are normally initialized by default.
*/
/* @{ */
extern DECLSPEC int SDLCALL SDL_GetNumAudioDrivers(void);
extern DECLSPEC const char *SDLCALL SDL_GetAudioDriver(int index);
/* @} */
/**
* \name Initialization and cleanup
*
* \internal These functions are used internally, and should not be used unless
* you have a specific need to specify the audio driver you want to
* use. You should normally use SDL_Init() or SDL_InitSubSystem().
*/
/* @{ */
extern DECLSPEC int SDLCALL SDL_AudioInit(const char *driver_name);
extern DECLSPEC void SDLCALL SDL_AudioQuit(void);
/* @} */
/**
* This function returns the name of the current audio driver, or NULL
* if no driver has been initialized.
*/
extern DECLSPEC const char *SDLCALL SDL_GetCurrentAudioDriver(void);
/**
* This function opens the audio device with the desired parameters, and
* returns 0 if successful, placing the actual hardware parameters in the
* structure pointed to by \c obtained. If \c obtained is NULL, the audio
* data passed to the callback function will be guaranteed to be in the
* requested format, and will be automatically converted to the hardware
* audio format if necessary. This function returns -1 if it failed
* to open the audio device, or couldn't set up the audio thread.
*
* When filling in the desired audio spec structure,
* - \c desired->freq should be the desired audio frequency in samples-per-
* second.
* - \c desired->format should be the desired audio format.
* - \c desired->samples is the desired size of the audio buffer, in
* samples. This number should be a power of two, and may be adjusted by
* the audio driver to a value more suitable for the hardware. Good values
* seem to range between 512 and 8096 inclusive, depending on the
* application and CPU speed. Smaller values yield faster response time,
* but can lead to underflow if the application is doing heavy processing
* and cannot fill the audio buffer in time. A stereo sample consists of
* both right and left channels in LR ordering.
* Note that the number of samples is directly related to time by the
* following formula: \code ms = (samples*1000)/freq \endcode
* - \c desired->size is the size in bytes of the audio buffer, and is
* calculated by SDL_OpenAudio().
* - \c desired->silence is the value used to set the buffer to silence,
* and is calculated by SDL_OpenAudio().
* - \c desired->callback should be set to a function that will be called
* when the audio device is ready for more data. It is passed a pointer
* to the audio buffer, and the length in bytes of the audio buffer.
* This function usually runs in a separate thread, and so you should
* protect data structures that it accesses by calling SDL_LockAudio()
* and SDL_UnlockAudio() in your code. Alternately, you may pass a NULL
* pointer here, and call SDL_QueueAudio() with some frequency, to queue
* more audio samples to be played (or for capture devices, call
* SDL_DequeueAudio() with some frequency, to obtain audio samples).
* - \c desired->userdata is passed as the first parameter to your callback
* function. If you passed a NULL callback, this value is ignored.
*
* The audio device starts out playing silence when it's opened, and should
* be enabled for playing by calling \c SDL_PauseAudio(0) when you are ready
* for your audio callback function to be called. Since the audio driver
* may modify the requested size of the audio buffer, you should allocate
* any local mixing buffers after you open the audio device.
*/
extern DECLSPEC int SDLCALL SDL_OpenAudio(SDL_AudioSpec * desired,
SDL_AudioSpec * obtained);
/**
* SDL Audio Device IDs.
*
* A successful call to SDL_OpenAudio() is always device id 1, and legacy
* SDL audio APIs assume you want this device ID. SDL_OpenAudioDevice() calls
* always returns devices >= 2 on success. The legacy calls are good both
* for backwards compatibility and when you don't care about multiple,
* specific, or capture devices.
*/
typedef Uint32 SDL_AudioDeviceID;
/**
* Get the number of available devices exposed by the current driver.
* Only valid after a successfully initializing the audio subsystem.
* Returns -1 if an explicit list of devices can't be determined; this is
* not an error. For example, if SDL is set up to talk to a remote audio
* server, it can't list every one available on the Internet, but it will
* still allow a specific host to be specified to SDL_OpenAudioDevice().
*
* In many common cases, when this function returns a value <= 0, it can still
* successfully open the default device (NULL for first argument of
* SDL_OpenAudioDevice()).
*/
extern DECLSPEC int SDLCALL SDL_GetNumAudioDevices(int iscapture);
/**
* Get the human-readable name of a specific audio device.
* Must be a value between 0 and (number of audio devices-1).
* Only valid after a successfully initializing the audio subsystem.
* The values returned by this function reflect the latest call to
* SDL_GetNumAudioDevices(); recall that function to redetect available
* hardware.
*
* The string returned by this function is UTF-8 encoded, read-only, and
* managed internally. You are not to free it. If you need to keep the
* string for any length of time, you should make your own copy of it, as it
* will be invalid next time any of several other SDL functions is called.
*/
extern DECLSPEC const char *SDLCALL SDL_GetAudioDeviceName(int index,
int iscapture);
/**
* Open a specific audio device. Passing in a device name of NULL requests
* the most reasonable default (and is equivalent to calling SDL_OpenAudio()).
*
* The device name is a UTF-8 string reported by SDL_GetAudioDeviceName(), but
* some drivers allow arbitrary and driver-specific strings, such as a
* hostname/IP address for a remote audio server, or a filename in the
* diskaudio driver.
*
* \return 0 on error, a valid device ID that is >= 2 on success.
*
* SDL_OpenAudio(), unlike this function, always acts on device ID 1.
*/
extern DECLSPEC SDL_AudioDeviceID SDLCALL SDL_OpenAudioDevice(const char
*device,
int iscapture,
const
SDL_AudioSpec *
desired,
SDL_AudioSpec *
obtained,
int
allowed_changes);
/**
* \name Audio state
*
* Get the current audio state.
*/
/* @{ */
typedef enum
{
SDL_AUDIO_STOPPED = 0,
SDL_AUDIO_PLAYING,
SDL_AUDIO_PAUSED
} SDL_AudioStatus;
extern DECLSPEC SDL_AudioStatus SDLCALL SDL_GetAudioStatus(void);
extern DECLSPEC SDL_AudioStatus SDLCALL
SDL_GetAudioDeviceStatus(SDL_AudioDeviceID dev);
/* @} *//* Audio State */
/**
* \name Pause audio functions
*
* These functions pause and unpause the audio callback processing.
* They should be called with a parameter of 0 after opening the audio
* device to start playing sound. This is so you can safely initialize
* data for your callback function after opening the audio device.
* Silence will be written to the audio device during the pause.
*/
/* @{ */
extern DECLSPEC void SDLCALL SDL_PauseAudio(int pause_on);
extern DECLSPEC void SDLCALL SDL_PauseAudioDevice(SDL_AudioDeviceID dev,
int pause_on);
/* @} *//* Pause audio functions */
/**
* This function loads a WAVE from the data source, automatically freeing
* that source if \c freesrc is non-zero. For example, to load a WAVE file,
* you could do:
* \code
* SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
* \endcode
*
* If this function succeeds, it returns the given SDL_AudioSpec,
* filled with the audio data format of the wave data, and sets
* \c *audio_buf to a malloc()'d buffer containing the audio data,
* and sets \c *audio_len to the length of that audio buffer, in bytes.
* You need to free the audio buffer with SDL_FreeWAV() when you are
* done with it.
*
* This function returns NULL and sets the SDL error message if the
* wave file cannot be opened, uses an unknown data format, or is
* corrupt. Currently raw and MS-ADPCM WAVE files are supported.
*/
extern DECLSPEC SDL_AudioSpec *SDLCALL SDL_LoadWAV_RW(SDL_RWops * src,
int freesrc,
SDL_AudioSpec * spec,
Uint8 ** audio_buf,
Uint32 * audio_len);
/**
* Loads a WAV from a file.
* Compatibility convenience function.
*/
#define SDL_LoadWAV(file, spec, audio_buf, audio_len) \
SDL_LoadWAV_RW(SDL_RWFromFile(file, "rb"),1, spec,audio_buf,audio_len)
/**
* This function frees data previously allocated with SDL_LoadWAV_RW()
*/
extern DECLSPEC void SDLCALL SDL_FreeWAV(Uint8 * audio_buf);
/**
* This function takes a source format and rate and a destination format
* and rate, and initializes the \c cvt structure with information needed
* by SDL_ConvertAudio() to convert a buffer of audio data from one format
* to the other. An unsupported format causes an error and -1 will be returned.
*
* \return 0 if no conversion is needed, 1 if the audio filter is set up,
* or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_BuildAudioCVT(SDL_AudioCVT * cvt,
SDL_AudioFormat src_format,
Uint8 src_channels,
int src_rate,
SDL_AudioFormat dst_format,
Uint8 dst_channels,
int dst_rate);
/**
* Once you have initialized the \c cvt structure using SDL_BuildAudioCVT(),
* created an audio buffer \c cvt->buf, and filled it with \c cvt->len bytes of
* audio data in the source format, this function will convert it in-place
* to the desired format.
*
* The data conversion may expand the size of the audio data, so the buffer
* \c cvt->buf should be allocated after the \c cvt structure is initialized by
* SDL_BuildAudioCVT(), and should be \c cvt->len*cvt->len_mult bytes long.
*
* \return 0 on success or -1 if \c cvt->buf is NULL.
*/
extern DECLSPEC int SDLCALL SDL_ConvertAudio(SDL_AudioCVT * cvt);
/* SDL_AudioStream is a new audio conversion interface.
The benefits vs SDL_AudioCVT:
- it can handle resampling data in chunks without generating
artifacts, when it doesn't have the complete buffer available.
- it can handle incoming data in any variable size.
- You push data as you have it, and pull it when you need it
*/
/* this is opaque to the outside world. */
struct _SDL_AudioStream;
typedef struct _SDL_AudioStream SDL_AudioStream;
/**
* Create a new audio stream
*
* \param src_format The format of the source audio
* \param src_channels The number of channels of the source audio
* \param src_rate The sampling rate of the source audio
* \param dst_format The format of the desired audio output
* \param dst_channels The number of channels of the desired audio output
* \param dst_rate The sampling rate of the desired audio output
* \return 0 on success, or -1 on error.
*
* \sa SDL_AudioStreamPut
* \sa SDL_AudioStreamGet
* \sa SDL_AudioStreamAvailable
* \sa SDL_AudioStreamFlush
* \sa SDL_AudioStreamClear
* \sa SDL_FreeAudioStream
*/
extern DECLSPEC SDL_AudioStream * SDLCALL SDL_NewAudioStream(const SDL_AudioFormat src_format,
const Uint8 src_channels,
const int src_rate,
const SDL_AudioFormat dst_format,
const Uint8 dst_channels,
const int dst_rate);
/**
* Add data to be converted/resampled to the stream
*
* \param stream The stream the audio data is being added to
* \param buf A pointer to the audio data to add
* \param int The number of bytes to write to the stream
* \return 0 on success, or -1 on error.
*
* \sa SDL_NewAudioStream
* \sa SDL_AudioStreamGet
* \sa SDL_AudioStreamAvailable
* \sa SDL_AudioStreamFlush
* \sa SDL_AudioStreamClear
* \sa SDL_FreeAudioStream
*/
extern DECLSPEC int SDLCALL SDL_AudioStreamPut(SDL_AudioStream *stream, const void *buf, int len);
/**
* Get converted/resampled data from the stream
*
* \param stream The stream the audio is being requested from
* \param buf A buffer to fill with audio data
* \param len The maximum number of bytes to fill
* \return The number of bytes read from the stream, or -1 on error
*
* \sa SDL_NewAudioStream
* \sa SDL_AudioStreamPut
* \sa SDL_AudioStreamAvailable
* \sa SDL_AudioStreamFlush
* \sa SDL_AudioStreamClear
* \sa SDL_FreeAudioStream
*/
extern DECLSPEC int SDLCALL SDL_AudioStreamGet(SDL_AudioStream *stream, void *buf, int len);
/**
* Get the number of converted/resampled bytes available. The stream may be
* buffering data behind the scenes until it has enough to resample
* correctly, so this number might be lower than what you expect, or even
* be zero. Add more data or flush the stream if you need the data now.
*
* \sa SDL_NewAudioStream
* \sa SDL_AudioStreamPut
* \sa SDL_AudioStreamGet
* \sa SDL_AudioStreamFlush
* \sa SDL_AudioStreamClear
* \sa SDL_FreeAudioStream
*/
extern DECLSPEC int SDLCALL SDL_AudioStreamAvailable(SDL_AudioStream *stream);
/**
* Tell the stream that you're done sending data, and anything being buffered
* should be converted/resampled and made available immediately.
*
* It is legal to add more data to a stream after flushing, but there will
* be audio gaps in the output. Generally this is intended to signal the
* end of input, so the complete output becomes available.
*
* \sa SDL_NewAudioStream
* \sa SDL_AudioStreamPut
* \sa SDL_AudioStreamGet
* \sa SDL_AudioStreamAvailable
* \sa SDL_AudioStreamClear
* \sa SDL_FreeAudioStream
*/
extern DECLSPEC int SDLCALL SDL_AudioStreamFlush(SDL_AudioStream *stream);
/**
* Clear any pending data in the stream without converting it
*
* \sa SDL_NewAudioStream
* \sa SDL_AudioStreamPut
* \sa SDL_AudioStreamGet
* \sa SDL_AudioStreamAvailable
* \sa SDL_AudioStreamFlush
* \sa SDL_FreeAudioStream
*/
extern DECLSPEC void SDLCALL SDL_AudioStreamClear(SDL_AudioStream *stream);
/**
* Free an audio stream
*
* \sa SDL_NewAudioStream
* \sa SDL_AudioStreamPut
* \sa SDL_AudioStreamGet
* \sa SDL_AudioStreamAvailable
* \sa SDL_AudioStreamFlush
* \sa SDL_AudioStreamClear
*/
extern DECLSPEC void SDLCALL SDL_FreeAudioStream(SDL_AudioStream *stream);
#define SDL_MIX_MAXVOLUME 128
/**
* This takes two audio buffers of the playing audio format and mixes
* them, performing addition, volume adjustment, and overflow clipping.
* The volume ranges from 0 - 128, and should be set to ::SDL_MIX_MAXVOLUME
* for full audio volume. Note this does not change hardware volume.
* This is provided for convenience -- you can mix your own audio data.
*/
extern DECLSPEC void SDLCALL SDL_MixAudio(Uint8 * dst, const Uint8 * src,
Uint32 len, int volume);
/**
* This works like SDL_MixAudio(), but you specify the audio format instead of
* using the format of audio device 1. Thus it can be used when no audio
* device is open at all.
*/
extern DECLSPEC void SDLCALL SDL_MixAudioFormat(Uint8 * dst,
const Uint8 * src,
SDL_AudioFormat format,
Uint32 len, int volume);
/**
* Queue more audio on non-callback devices.
*
* (If you are looking to retrieve queued audio from a non-callback capture
* device, you want SDL_DequeueAudio() instead. This will return -1 to
* signify an error if you use it with capture devices.)
*
* SDL offers two ways to feed audio to the device: you can either supply a
* callback that SDL triggers with some frequency to obtain more audio
* (pull method), or you can supply no callback, and then SDL will expect
* you to supply data at regular intervals (push method) with this function.
*
* There are no limits on the amount of data you can queue, short of
* exhaustion of address space. Queued data will drain to the device as
* necessary without further intervention from you. If the device needs
* audio but there is not enough queued, it will play silence to make up
* the difference. This means you will have skips in your audio playback
* if you aren't routinely queueing sufficient data.
*
* This function copies the supplied data, so you are safe to free it when
* the function returns. This function is thread-safe, but queueing to the
* same device from two threads at once does not promise which buffer will
* be queued first.
*
* You may not queue audio on a device that is using an application-supplied
* callback; doing so returns an error. You have to use the audio callback
* or queue audio with this function, but not both.
*
* You should not call SDL_LockAudio() on the device before queueing; SDL
* handles locking internally for this function.
*
* \param dev The device ID to which we will queue audio.
* \param data The data to queue to the device for later playback.
* \param len The number of bytes (not samples!) to which (data) points.
* \return 0 on success, or -1 on error.
*
* \sa SDL_GetQueuedAudioSize
* \sa SDL_ClearQueuedAudio
*/
extern DECLSPEC int SDLCALL SDL_QueueAudio(SDL_AudioDeviceID dev, const void *data, Uint32 len);
/**
* Dequeue more audio on non-callback devices.
*
* (If you are looking to queue audio for output on a non-callback playback
* device, you want SDL_QueueAudio() instead. This will always return 0
* if you use it with playback devices.)
*
* SDL offers two ways to retrieve audio from a capture device: you can
* either supply a callback that SDL triggers with some frequency as the
* device records more audio data, (push method), or you can supply no
* callback, and then SDL will expect you to retrieve data at regular
* intervals (pull method) with this function.
*
* There are no limits on the amount of data you can queue, short of
* exhaustion of address space. Data from the device will keep queuing as
* necessary without further intervention from you. This means you will
* eventually run out of memory if you aren't routinely dequeueing data.
*
* Capture devices will not queue data when paused; if you are expecting
* to not need captured audio for some length of time, use
* SDL_PauseAudioDevice() to stop the capture device from queueing more
* data. This can be useful during, say, level loading times. When
* unpaused, capture devices will start queueing data from that point,
* having flushed any capturable data available while paused.
*
* This function is thread-safe, but dequeueing from the same device from
* two threads at once does not promise which thread will dequeued data
* first.
*
* You may not dequeue audio from a device that is using an
* application-supplied callback; doing so returns an error. You have to use
* the audio callback, or dequeue audio with this function, but not both.
*
* You should not call SDL_LockAudio() on the device before queueing; SDL
* handles locking internally for this function.
*
* \param dev The device ID from which we will dequeue audio.
* \param data A pointer into where audio data should be copied.
* \param len The number of bytes (not samples!) to which (data) points.
* \return number of bytes dequeued, which could be less than requested.
*
* \sa SDL_GetQueuedAudioSize
* \sa SDL_ClearQueuedAudio
*/
extern DECLSPEC Uint32 SDLCALL SDL_DequeueAudio(SDL_AudioDeviceID dev, void *data, Uint32 len);
/**
* Get the number of bytes of still-queued audio.
*
* For playback device:
*
* This is the number of bytes that have been queued for playback with
* SDL_QueueAudio(), but have not yet been sent to the hardware. This
* number may shrink at any time, so this only informs of pending data.
*
* Once we've sent it to the hardware, this function can not decide the
* exact byte boundary of what has been played. It's possible that we just
* gave the hardware several kilobytes right before you called this
* function, but it hasn't played any of it yet, or maybe half of it, etc.
*
* For capture devices:
*
* This is the number of bytes that have been captured by the device and
* are waiting for you to dequeue. This number may grow at any time, so
* this only informs of the lower-bound of available data.
*
* You may not queue audio on a device that is using an application-supplied
* callback; calling this function on such a device always returns 0.
* You have to queue audio with SDL_QueueAudio()/SDL_DequeueAudio(), or use
* the audio callback, but not both.
*
* You should not call SDL_LockAudio() on the device before querying; SDL
* handles locking internally for this function.
*
* \param dev The device ID of which we will query queued audio size.
* \return Number of bytes (not samples!) of queued audio.
*
* \sa SDL_QueueAudio
* \sa SDL_ClearQueuedAudio
*/
extern DECLSPEC Uint32 SDLCALL SDL_GetQueuedAudioSize(SDL_AudioDeviceID dev);
/**
* Drop any queued audio data. For playback devices, this is any queued data
* still waiting to be submitted to the hardware. For capture devices, this
* is any data that was queued by the device that hasn't yet been dequeued by
* the application.
*
* Immediately after this call, SDL_GetQueuedAudioSize() will return 0. For
* playback devices, the hardware will start playing silence if more audio
* isn't queued. Unpaused capture devices will start filling the queue again
* as soon as they have more data available (which, depending on the state
* of the hardware and the thread, could be before this function call
* returns!).
*
* This will not prevent playback of queued audio that's already been sent
* to the hardware, as we can not undo that, so expect there to be some
* fraction of a second of audio that might still be heard. This can be
* useful if you want to, say, drop any pending music during a level change
* in your game.
*
* You may not queue audio on a device that is using an application-supplied
* callback; calling this function on such a device is always a no-op.
* You have to queue audio with SDL_QueueAudio()/SDL_DequeueAudio(), or use
* the audio callback, but not both.
*
* You should not call SDL_LockAudio() on the device before clearing the
* queue; SDL handles locking internally for this function.
*
* This function always succeeds and thus returns void.
*
* \param dev The device ID of which to clear the audio queue.
*
* \sa SDL_QueueAudio
* \sa SDL_GetQueuedAudioSize
*/
extern DECLSPEC void SDLCALL SDL_ClearQueuedAudio(SDL_AudioDeviceID dev);
/**
* \name Audio lock functions
*
* The lock manipulated by these functions protects the callback function.
* During a SDL_LockAudio()/SDL_UnlockAudio() pair, you can be guaranteed that
* the callback function is not running. Do not call these from the callback
* function or you will cause deadlock.
*/
/* @{ */
extern DECLSPEC void SDLCALL SDL_LockAudio(void);
extern DECLSPEC void SDLCALL SDL_LockAudioDevice(SDL_AudioDeviceID dev);
extern DECLSPEC void SDLCALL SDL_UnlockAudio(void);
extern DECLSPEC void SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
/* @} *//* Audio lock functions */
/**
* This function shuts down audio processing and closes the audio device.
*/
extern DECLSPEC void SDLCALL SDL_CloseAudio(void);
extern DECLSPEC void SDLCALL SDL_CloseAudioDevice(SDL_AudioDeviceID dev);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_audio_h_ */
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_bits.h
*
* Functions for fiddling with bits and bitmasks.
*/
#ifndef SDL_bits_h_
#define SDL_bits_h_
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file SDL_bits.h
*/
/**
* Get the index of the most significant bit. Result is undefined when called
* with 0. This operation can also be stated as "count leading zeroes" and
* "log base 2".
*
* \return Index of the most significant bit, or -1 if the value is 0.
*/
#if defined(__WATCOMC__) && defined(__386__)
extern _inline int _SDL_clz_watcom (Uint32);
#pragma aux _SDL_clz_watcom = \
"bsr eax, eax" \
"xor eax, 31" \
parm [eax] nomemory \
value [eax] \
modify exact [eax] nomemory;
#endif
SDL_FORCE_INLINE int
SDL_MostSignificantBitIndex32(Uint32 x)
{
#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
/* Count Leading Zeroes builtin in GCC.
* http://gcc.gnu.org/onlinedocs/gcc-4.3.4/gcc/Other-Builtins.html
*/
if (x == 0) {
return -1;
}
return 31 - __builtin_clz(x);
#elif defined(__WATCOMC__) && defined(__386__)
if (x == 0) {
return -1;
}
return 31 - _SDL_clz_watcom(x);
#else
/* Based off of Bit Twiddling Hacks by Sean Eron Anderson
* <seander@cs.stanford.edu>, released in the public domain.
* http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog
*/
const Uint32 b[] = {0x2, 0xC, 0xF0, 0xFF00, 0xFFFF0000};
const int S[] = {1, 2, 4, 8, 16};
int msbIndex = 0;
int i;
if (x == 0) {
return -1;
}
for (i = 4; i >= 0; i--)
{
if (x & b[i])
{
x >>= S[i];
msbIndex |= S[i];
}
}
return msbIndex;
#endif
}
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_bits_h_ */
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_blendmode.h
*
* Header file declaring the SDL_BlendMode enumeration
*/
#ifndef SDL_blendmode_h_
#define SDL_blendmode_h_
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief The blend mode used in SDL_RenderCopy() and drawing operations.
*/
typedef enum
{
SDL_BLENDMODE_NONE = 0x00000000, /**< no blending
dstRGBA = srcRGBA */
SDL_BLENDMODE_BLEND = 0x00000001, /**< alpha blending
dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
dstA = srcA + (dstA * (1-srcA)) */
SDL_BLENDMODE_ADD = 0x00000002, /**< additive blending
dstRGB = (srcRGB * srcA) + dstRGB
dstA = dstA */
SDL_BLENDMODE_MOD = 0x00000004, /**< color modulate
dstRGB = srcRGB * dstRGB
dstA = dstA */
SDL_BLENDMODE_INVALID = 0x7FFFFFFF
/* Additional custom blend modes can be returned by SDL_ComposeCustomBlendMode() */
} SDL_BlendMode;
/**
* \brief The blend operation used when combining source and destination pixel components
*/
typedef enum
{
SDL_BLENDOPERATION_ADD = 0x1, /**< dst + src: supported by all renderers */
SDL_BLENDOPERATION_SUBTRACT = 0x2, /**< dst - src : supported by D3D9, D3D11, OpenGL, OpenGLES */
SDL_BLENDOPERATION_REV_SUBTRACT = 0x3, /**< src - dst : supported by D3D9, D3D11, OpenGL, OpenGLES */
SDL_BLENDOPERATION_MINIMUM = 0x4, /**< min(dst, src) : supported by D3D11 */
SDL_BLENDOPERATION_MAXIMUM = 0x5 /**< max(dst, src) : supported by D3D11 */
} SDL_BlendOperation;
/**
* \brief The normalized factor used to multiply pixel components
*/
typedef enum
{
SDL_BLENDFACTOR_ZERO = 0x1, /**< 0, 0, 0, 0 */
SDL_BLENDFACTOR_ONE = 0x2, /**< 1, 1, 1, 1 */
SDL_BLENDFACTOR_SRC_COLOR = 0x3, /**< srcR, srcG, srcB, srcA */
SDL_BLENDFACTOR_ONE_MINUS_SRC_COLOR = 0x4, /**< 1-srcR, 1-srcG, 1-srcB, 1-srcA */
SDL_BLENDFACTOR_SRC_ALPHA = 0x5, /**< srcA, srcA, srcA, srcA */
SDL_BLENDFACTOR_ONE_MINUS_SRC_ALPHA = 0x6, /**< 1-srcA, 1-srcA, 1-srcA, 1-srcA */
SDL_BLENDFACTOR_DST_COLOR = 0x7, /**< dstR, dstG, dstB, dstA */
SDL_BLENDFACTOR_ONE_MINUS_DST_COLOR = 0x8, /**< 1-dstR, 1-dstG, 1-dstB, 1-dstA */
SDL_BLENDFACTOR_DST_ALPHA = 0x9, /**< dstA, dstA, dstA, dstA */
SDL_BLENDFACTOR_ONE_MINUS_DST_ALPHA = 0xA /**< 1-dstA, 1-dstA, 1-dstA, 1-dstA */
} SDL_BlendFactor;
/**
* \brief Create a custom blend mode, which may or may not be supported by a given renderer
*
* \param srcColorFactor
* \param dstColorFactor
* \param colorOperation
* \param srcAlphaFactor
* \param dstAlphaFactor
* \param alphaOperation
*
* The result of the blend mode operation will be:
* dstRGB = dstRGB * dstColorFactor colorOperation srcRGB * srcColorFactor
* and
* dstA = dstA * dstAlphaFactor alphaOperation srcA * srcAlphaFactor
*/
extern DECLSPEC SDL_BlendMode SDLCALL SDL_ComposeCustomBlendMode(SDL_BlendFactor srcColorFactor,
SDL_BlendFactor dstColorFactor,
SDL_BlendOperation colorOperation,
SDL_BlendFactor srcAlphaFactor,
SDL_BlendFactor dstAlphaFactor,
SDL_BlendOperation alphaOperation);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_blendmode_h_ */
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_clipboard.h
*
* Include file for SDL clipboard handling
*/
#ifndef SDL_clipboard_h_
#define SDL_clipboard_h_
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* Function prototypes */
/**
* \brief Put UTF-8 text into the clipboard
*
* \sa SDL_GetClipboardText()
*/
extern DECLSPEC int SDLCALL SDL_SetClipboardText(const char *text);
/**
* \brief Get UTF-8 text from the clipboard, which must be freed with SDL_free()
*
* \sa SDL_SetClipboardText()
*/
extern DECLSPEC char * SDLCALL SDL_GetClipboardText(void);
/**
* \brief Returns a flag indicating whether the clipboard exists and contains a text string that is non-empty
*
* \sa SDL_GetClipboardText()
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasClipboardText(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_clipboard_h_ */
/* vi: set ts=4 sw=4 expandtab: */

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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef SDL_config_windows_h_
#define SDL_config_windows_h_
#define SDL_config_h_
#include "SDL_platform.h"
/* This is a set of defines to configure the SDL features */
#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
#if defined(__GNUC__) || defined(__DMC__) || defined(__WATCOMC__)
#define HAVE_STDINT_H 1
#elif defined(_MSC_VER)
typedef signed __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef signed __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef signed __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
#ifndef _UINTPTR_T_DEFINED
#ifdef _WIN64
typedef unsigned __int64 uintptr_t;
#else
typedef unsigned int uintptr_t;
#endif
#define _UINTPTR_T_DEFINED
#endif
/* Older Visual C++ headers don't have the Win64-compatible typedefs... */
#if ((_MSC_VER <= 1200) && (!defined(DWORD_PTR)))
#define DWORD_PTR DWORD
#endif
#if ((_MSC_VER <= 1200) && (!defined(LONG_PTR)))
#define LONG_PTR LONG
#endif
#else /* !__GNUC__ && !_MSC_VER */
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
#ifndef _SIZE_T_DEFINED_
#define _SIZE_T_DEFINED_
typedef unsigned int size_t;
#endif
typedef unsigned int uintptr_t;
#endif /* __GNUC__ || _MSC_VER */
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */
#ifdef _WIN64
# define SIZEOF_VOIDP 8
#else
# define SIZEOF_VOIDP 4
#endif
#define HAVE_DDRAW_H 1
#define HAVE_DINPUT_H 1
#define HAVE_DSOUND_H 1
#define HAVE_DXGI_H 1
#define HAVE_XINPUT_H 1
/* This is disabled by default to avoid C runtime dependencies and manifest requirements */
#ifdef HAVE_LIBC
/* Useful headers */
#define STDC_HEADERS 1
#define HAVE_CTYPE_H 1
#define HAVE_FLOAT_H 1
#define HAVE_LIMITS_H 1
#define HAVE_MATH_H 1
#define HAVE_SIGNAL_H 1
#define HAVE_STDIO_H 1
#define HAVE_STRING_H 1
/* C library functions */
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
#define HAVE_ALLOCA 1
#define HAVE_QSORT 1
#define HAVE_ABS 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMCMP 1
#define HAVE_STRLEN 1
#define HAVE__STRREV 1
#define HAVE__STRUPR 1
#define HAVE__STRLWR 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE__LTOA 1
#define HAVE__ULTOA 1
#define HAVE_STRTOL 1
#define HAVE_STRTOUL 1
#define HAVE_STRTOD 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
#define HAVE__STRICMP 1
#define HAVE__STRNICMP 1
#define HAVE_ATAN 1
#define HAVE_ATAN2 1
#define HAVE_ACOS 1
#define HAVE_ASIN 1
#define HAVE_CEIL 1
#define HAVE_COS 1
#define HAVE_COSF 1
#define HAVE_FABS 1
#define HAVE_FLOOR 1
#define HAVE_LOG 1
#define HAVE_POW 1
#define HAVE_SIN 1
#define HAVE_SINF 1
#define HAVE_SQRT 1
#define HAVE_SQRTF 1
#define HAVE_TAN 1
#define HAVE_TANF 1
#define HAVE__COPYSIGN 1
#if defined(_MSC_VER)
/* These functions were added with the VC++ 2013 C runtime library */
#if _MSC_VER >= 1800
#define HAVE_STRTOLL 1
#define HAVE_VSSCANF 1
#define HAVE_SCALBN 1
#endif
/* This function is available with at least the VC++ 2008 C runtime library */
#if _MSC_VER >= 1400
#define HAVE__FSEEKI64 1
#endif
#endif
#if !defined(_MSC_VER) || defined(_USE_MATH_DEFINES)
#define HAVE_M_PI 1
#endif
#else
#define HAVE_STDARG_H 1
#define HAVE_STDDEF_H 1
#endif
/* Enable various audio drivers */
#define SDL_AUDIO_DRIVER_WASAPI 1
#define SDL_AUDIO_DRIVER_DSOUND 1
#define SDL_AUDIO_DRIVER_XAUDIO2 0
#define SDL_AUDIO_DRIVER_WINMM 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various input drivers */
#define SDL_JOYSTICK_DINPUT 1
#define SDL_JOYSTICK_XINPUT 1
#define SDL_HAPTIC_DINPUT 1
#define SDL_HAPTIC_XINPUT 1
/* Enable various shared object loading systems */
#define SDL_LOADSO_WINDOWS 1
/* Enable various threading systems */
#define SDL_THREAD_WINDOWS 1
/* Enable various timer systems */
#define SDL_TIMER_WINDOWS 1
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_DUMMY 1
#define SDL_VIDEO_DRIVER_WINDOWS 1
#ifndef SDL_VIDEO_RENDER_D3D
#define SDL_VIDEO_RENDER_D3D 1
#endif
#ifndef SDL_VIDEO_RENDER_D3D11
#define SDL_VIDEO_RENDER_D3D11 0
#endif
/* Enable OpenGL support */
#ifndef SDL_VIDEO_OPENGL
#define SDL_VIDEO_OPENGL 1
#endif
#ifndef SDL_VIDEO_OPENGL_WGL
#define SDL_VIDEO_OPENGL_WGL 1
#endif
#ifndef SDL_VIDEO_RENDER_OGL
#define SDL_VIDEO_RENDER_OGL 1
#endif
#ifndef SDL_VIDEO_RENDER_OGL_ES2
#define SDL_VIDEO_RENDER_OGL_ES2 1
#endif
#ifndef SDL_VIDEO_OPENGL_ES2
#define SDL_VIDEO_OPENGL_ES2 1
#endif
#ifndef SDL_VIDEO_OPENGL_EGL
#define SDL_VIDEO_OPENGL_EGL 1
#endif
/* Enable Vulkan support */
#define SDL_VIDEO_VULKAN 1
/* Enable system power support */
#define SDL_POWER_WINDOWS 1
/* Enable filesystem support */
#define SDL_FILESYSTEM_WINDOWS 1
/* Enable assembly routines (Win64 doesn't have inline asm) */
#ifndef _WIN64
#define SDL_ASSEMBLY_ROUTINES 1
#endif
#endif /* SDL_config_windows_h_ */

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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_cpuinfo.h
*
* CPU feature detection for SDL.
*/
#ifndef SDL_cpuinfo_h_
#define SDL_cpuinfo_h_
#include "SDL_stdinc.h"
/* Need to do this here because intrin.h has C++ code in it */
/* Visual Studio 2005 has a bug where intrin.h conflicts with winnt.h */
#if defined(_MSC_VER) && (_MSC_VER >= 1500) && (defined(_M_IX86) || defined(_M_X64))
#ifdef __clang__
/* Many of the intrinsics SDL uses are not implemented by clang with Visual Studio */
#undef __MMX__
#undef __SSE__
#undef __SSE2__
#else
#include <intrin.h>
#ifndef _WIN64
#define __MMX__
#define __3dNOW__
#endif
#define __SSE__
#define __SSE2__
#endif /* __clang__ */
#elif defined(__MINGW64_VERSION_MAJOR)
#include <intrin.h>
#else
#ifdef __ALTIVEC__
#if HAVE_ALTIVEC_H && !defined(__APPLE_ALTIVEC__)
#include <altivec.h>
#undef pixel
#endif
#endif
#ifdef __MMX__
#include <mmintrin.h>
#endif
#ifdef __3dNOW__
#include <mm3dnow.h>
#endif
#ifdef __SSE__
#include <xmmintrin.h>
#endif
#ifdef __SSE2__
#include <emmintrin.h>
#endif
#ifdef __SSE3__
#include <pmmintrin.h>
#endif
#endif
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* This is a guess for the cacheline size used for padding.
* Most x86 processors have a 64 byte cache line.
* The 64-bit PowerPC processors have a 128 byte cache line.
* We'll use the larger value to be generally safe.
*/
#define SDL_CACHELINE_SIZE 128
/**
* This function returns the number of CPU cores available.
*/
extern DECLSPEC int SDLCALL SDL_GetCPUCount(void);
/**
* This function returns the L1 cache line size of the CPU
*
* This is useful for determining multi-threaded structure padding
* or SIMD prefetch sizes.
*/
extern DECLSPEC int SDLCALL SDL_GetCPUCacheLineSize(void);
/**
* This function returns true if the CPU has the RDTSC instruction.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void);
/**
* This function returns true if the CPU has AltiVec features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void);
/**
* This function returns true if the CPU has MMX features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void);
/**
* This function returns true if the CPU has 3DNow! features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void);
/**
* This function returns true if the CPU has SSE features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void);
/**
* This function returns true if the CPU has SSE2 features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void);
/**
* This function returns true if the CPU has SSE3 features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE3(void);
/**
* This function returns true if the CPU has SSE4.1 features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE41(void);
/**
* This function returns true if the CPU has SSE4.2 features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE42(void);
/**
* This function returns true if the CPU has AVX features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX(void);
/**
* This function returns true if the CPU has AVX2 features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX2(void);
/**
* This function returns true if the CPU has NEON (ARM SIMD) features.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasNEON(void);
/**
* This function returns the amount of RAM configured in the system, in MB.
*/
extern DECLSPEC int SDLCALL SDL_GetSystemRAM(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_cpuinfo_h_ */
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_endian.h
*
* Functions for reading and writing endian-specific values
*/
#ifndef SDL_endian_h_
#define SDL_endian_h_
#include "SDL_stdinc.h"
/**
* \name The two types of endianness
*/
/* @{ */
#define SDL_LIL_ENDIAN 1234
#define SDL_BIG_ENDIAN 4321
/* @} */
#ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */
#ifdef __linux__
#include <endian.h>
#define SDL_BYTEORDER __BYTE_ORDER
#else /* __linux__ */
#if defined(__hppa__) || \
defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
(defined(__MIPS__) && defined(__MISPEB__)) || \
defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
defined(__sparc__)
#define SDL_BYTEORDER SDL_BIG_ENDIAN
#else
#define SDL_BYTEORDER SDL_LIL_ENDIAN
#endif
#endif /* __linux__ */
#endif /* !SDL_BYTEORDER */
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file SDL_endian.h
*/
#if defined(__GNUC__) && defined(__i386__) && \
!(__GNUC__ == 2 && __GNUC_MINOR__ == 95 /* broken gcc version */)
SDL_FORCE_INLINE Uint16
SDL_Swap16(Uint16 x)
{
__asm__("xchgb %b0,%h0": "=q"(x):"0"(x));
return x;
}
#elif defined(__GNUC__) && defined(__x86_64__)
SDL_FORCE_INLINE Uint16
SDL_Swap16(Uint16 x)
{
__asm__("xchgb %b0,%h0": "=Q"(x):"0"(x));
return x;
}
#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
SDL_FORCE_INLINE Uint16
SDL_Swap16(Uint16 x)
{
int result;
__asm__("rlwimi %0,%2,8,16,23": "=&r"(result):"0"(x >> 8), "r"(x));
return (Uint16)result;
}
#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__)
SDL_FORCE_INLINE Uint16
SDL_Swap16(Uint16 x)
{
__asm__("rorw #8,%0": "=d"(x): "0"(x):"cc");
return x;
}
#elif defined(__WATCOMC__) && defined(__386__)
extern _inline Uint16 SDL_Swap16(Uint16);
#pragma aux SDL_Swap16 = \
"xchg al, ah" \
parm [ax] \
modify [ax];
#else
SDL_FORCE_INLINE Uint16
SDL_Swap16(Uint16 x)
{
return SDL_static_cast(Uint16, ((x << 8) | (x >> 8)));
}
#endif
#if defined(__GNUC__) && defined(__i386__)
SDL_FORCE_INLINE Uint32
SDL_Swap32(Uint32 x)
{
__asm__("bswap %0": "=r"(x):"0"(x));
return x;
}
#elif defined(__GNUC__) && defined(__x86_64__)
SDL_FORCE_INLINE Uint32
SDL_Swap32(Uint32 x)
{
__asm__("bswapl %0": "=r"(x):"0"(x));
return x;
}
#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
SDL_FORCE_INLINE Uint32
SDL_Swap32(Uint32 x)
{
Uint32 result;
__asm__("rlwimi %0,%2,24,16,23": "=&r"(result):"0"(x >> 24), "r"(x));
__asm__("rlwimi %0,%2,8,8,15": "=&r"(result):"0"(result), "r"(x));
__asm__("rlwimi %0,%2,24,0,7": "=&r"(result):"0"(result), "r"(x));
return result;
}
#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__)
SDL_FORCE_INLINE Uint32
SDL_Swap32(Uint32 x)
{
__asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0": "=d"(x): "0"(x):"cc");
return x;
}
#elif defined(__WATCOMC__) && defined(__386__)
extern _inline Uint32 SDL_Swap32(Uint32);
#ifndef __SW_3 /* 486+ */
#pragma aux SDL_Swap32 = \
"bswap eax" \
parm [eax] \
modify [eax];
#else /* 386-only */
#pragma aux SDL_Swap32 = \
"xchg al, ah" \
"ror eax, 16" \
"xchg al, ah" \
parm [eax] \
modify [eax];
#endif
#else
SDL_FORCE_INLINE Uint32
SDL_Swap32(Uint32 x)
{
return SDL_static_cast(Uint32, ((x << 24) | ((x << 8) & 0x00FF0000) |
((x >> 8) & 0x0000FF00) | (x >> 24)));
}
#endif
#if defined(__GNUC__) && defined(__i386__)
SDL_FORCE_INLINE Uint64
SDL_Swap64(Uint64 x)
{
union
{
struct
{
Uint32 a, b;
} s;
Uint64 u;
} v;
v.u = x;
__asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1": "=r"(v.s.a), "=r"(v.s.b):"0"(v.s.a),
"1"(v.s.
b));
return v.u;
}
#elif defined(__GNUC__) && defined(__x86_64__)
SDL_FORCE_INLINE Uint64
SDL_Swap64(Uint64 x)
{
__asm__("bswapq %0": "=r"(x):"0"(x));
return x;
}
#else
SDL_FORCE_INLINE Uint64
SDL_Swap64(Uint64 x)
{
Uint32 hi, lo;
/* Separate into high and low 32-bit values and swap them */
lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
x >>= 32;
hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
x = SDL_Swap32(lo);
x <<= 32;
x |= SDL_Swap32(hi);
return (x);
}
#endif
SDL_FORCE_INLINE float
SDL_SwapFloat(float x)
{
union
{
float f;
Uint32 ui32;
} swapper;
swapper.f = x;
swapper.ui32 = SDL_Swap32(swapper.ui32);
return swapper.f;
}
/**
* \name Swap to native
* Byteswap item from the specified endianness to the native endianness.
*/
/* @{ */
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define SDL_SwapLE16(X) (X)
#define SDL_SwapLE32(X) (X)
#define SDL_SwapLE64(X) (X)
#define SDL_SwapFloatLE(X) (X)
#define SDL_SwapBE16(X) SDL_Swap16(X)
#define SDL_SwapBE32(X) SDL_Swap32(X)
#define SDL_SwapBE64(X) SDL_Swap64(X)
#define SDL_SwapFloatBE(X) SDL_SwapFloat(X)
#else
#define SDL_SwapLE16(X) SDL_Swap16(X)
#define SDL_SwapLE32(X) SDL_Swap32(X)
#define SDL_SwapLE64(X) SDL_Swap64(X)
#define SDL_SwapFloatLE(X) SDL_SwapFloat(X)
#define SDL_SwapBE16(X) (X)
#define SDL_SwapBE32(X) (X)
#define SDL_SwapBE64(X) (X)
#define SDL_SwapFloatBE(X) (X)
#endif
/* @} *//* Swap to native */
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_endian_h_ */
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_error.h
*
* Simple error message routines for SDL.
*/
#ifndef SDL_error_h_
#define SDL_error_h_
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* Public functions */
/* SDL_SetError() unconditionally returns -1. */
extern DECLSPEC int SDLCALL SDL_SetError(SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(1);
extern DECLSPEC const char *SDLCALL SDL_GetError(void);
extern DECLSPEC void SDLCALL SDL_ClearError(void);
/**
* \name Internal error functions
*
* \internal
* Private error reporting function - used internally.
*/
/* @{ */
#define SDL_OutOfMemory() SDL_Error(SDL_ENOMEM)
#define SDL_Unsupported() SDL_Error(SDL_UNSUPPORTED)
#define SDL_InvalidParamError(param) SDL_SetError("Parameter '%s' is invalid", (param))
typedef enum
{
SDL_ENOMEM,
SDL_EFREAD,
SDL_EFWRITE,
SDL_EFSEEK,
SDL_UNSUPPORTED,
SDL_LASTERROR
} SDL_errorcode;
/* SDL_Error() unconditionally returns -1. */
extern DECLSPEC int SDLCALL SDL_Error(SDL_errorcode code);
/* @} *//* Internal error functions */
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_error_h_ */
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_events.h
*
* Include file for SDL event handling.
*/
#ifndef SDL_events_h_
#define SDL_events_h_
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_video.h"
#include "SDL_keyboard.h"
#include "SDL_mouse.h"
#include "SDL_joystick.h"
#include "SDL_gamecontroller.h"
#include "SDL_quit.h"
#include "SDL_gesture.h"
#include "SDL_touch.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* General keyboard/mouse state definitions */
#define SDL_RELEASED 0
#define SDL_PRESSED 1
/**
* \brief The types of events that can be delivered.
*/
typedef enum
{
SDL_FIRSTEVENT = 0, /**< Unused (do not remove) */
/* Application events */
SDL_QUIT = 0x100, /**< User-requested quit */
/* These application events have special meaning on iOS, see README-ios.md for details */
SDL_APP_TERMINATING, /**< The application is being terminated by the OS
Called on iOS in applicationWillTerminate()
Called on Android in onDestroy()
*/
SDL_APP_LOWMEMORY, /**< The application is low on memory, free memory if possible.
Called on iOS in applicationDidReceiveMemoryWarning()
Called on Android in onLowMemory()
*/
SDL_APP_WILLENTERBACKGROUND, /**< The application is about to enter the background
Called on iOS in applicationWillResignActive()
Called on Android in onPause()
*/
SDL_APP_DIDENTERBACKGROUND, /**< The application did enter the background and may not get CPU for some time
Called on iOS in applicationDidEnterBackground()
Called on Android in onPause()
*/
SDL_APP_WILLENTERFOREGROUND, /**< The application is about to enter the foreground
Called on iOS in applicationWillEnterForeground()
Called on Android in onResume()
*/
SDL_APP_DIDENTERFOREGROUND, /**< The application is now interactive
Called on iOS in applicationDidBecomeActive()
Called on Android in onResume()
*/
/* Window events */
SDL_WINDOWEVENT = 0x200, /**< Window state change */
SDL_SYSWMEVENT, /**< System specific event */
/* Keyboard events */
SDL_KEYDOWN = 0x300, /**< Key pressed */
SDL_KEYUP, /**< Key released */
SDL_TEXTEDITING, /**< Keyboard text editing (composition) */
SDL_TEXTINPUT, /**< Keyboard text input */
SDL_KEYMAPCHANGED, /**< Keymap changed due to a system event such as an
input language or keyboard layout change.
*/
/* Mouse events */
SDL_MOUSEMOTION = 0x400, /**< Mouse moved */
SDL_MOUSEBUTTONDOWN, /**< Mouse button pressed */
SDL_MOUSEBUTTONUP, /**< Mouse button released */
SDL_MOUSEWHEEL, /**< Mouse wheel motion */
/* Joystick events */
SDL_JOYAXISMOTION = 0x600, /**< Joystick axis motion */
SDL_JOYBALLMOTION, /**< Joystick trackball motion */
SDL_JOYHATMOTION, /**< Joystick hat position change */
SDL_JOYBUTTONDOWN, /**< Joystick button pressed */
SDL_JOYBUTTONUP, /**< Joystick button released */
SDL_JOYDEVICEADDED, /**< A new joystick has been inserted into the system */
SDL_JOYDEVICEREMOVED, /**< An opened joystick has been removed */
/* Game controller events */
SDL_CONTROLLERAXISMOTION = 0x650, /**< Game controller axis motion */
SDL_CONTROLLERBUTTONDOWN, /**< Game controller button pressed */
SDL_CONTROLLERBUTTONUP, /**< Game controller button released */
SDL_CONTROLLERDEVICEADDED, /**< A new Game controller has been inserted into the system */
SDL_CONTROLLERDEVICEREMOVED, /**< An opened Game controller has been removed */
SDL_CONTROLLERDEVICEREMAPPED, /**< The controller mapping was updated */
/* Touch events */
SDL_FINGERDOWN = 0x700,
SDL_FINGERUP,
SDL_FINGERMOTION,
/* Gesture events */
SDL_DOLLARGESTURE = 0x800,
SDL_DOLLARRECORD,
SDL_MULTIGESTURE,
/* Clipboard events */
SDL_CLIPBOARDUPDATE = 0x900, /**< The clipboard changed */
/* Drag and drop events */
SDL_DROPFILE = 0x1000, /**< The system requests a file open */
SDL_DROPTEXT, /**< text/plain drag-and-drop event */
SDL_DROPBEGIN, /**< A new set of drops is beginning (NULL filename) */
SDL_DROPCOMPLETE, /**< Current set of drops is now complete (NULL filename) */
/* Audio hotplug events */
SDL_AUDIODEVICEADDED = 0x1100, /**< A new audio device is available */
SDL_AUDIODEVICEREMOVED, /**< An audio device has been removed. */
/* Render events */
SDL_RENDER_TARGETS_RESET = 0x2000, /**< The render targets have been reset and their contents need to be updated */
SDL_RENDER_DEVICE_RESET, /**< The device has been reset and all textures need to be recreated */
/** Events ::SDL_USEREVENT through ::SDL_LASTEVENT are for your use,
* and should be allocated with SDL_RegisterEvents()
*/
SDL_USEREVENT = 0x8000,
/**
* This last event is only for bounding internal arrays
*/
SDL_LASTEVENT = 0xFFFF
} SDL_EventType;
/**
* \brief Fields shared by every event
*/
typedef struct SDL_CommonEvent
{
Uint32 type;
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
} SDL_CommonEvent;
/**
* \brief Window state change event data (event.window.*)
*/
typedef struct SDL_WindowEvent
{
Uint32 type; /**< ::SDL_WINDOWEVENT */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 windowID; /**< The associated window */
Uint8 event; /**< ::SDL_WindowEventID */
Uint8 padding1;
Uint8 padding2;
Uint8 padding3;
Sint32 data1; /**< event dependent data */
Sint32 data2; /**< event dependent data */
} SDL_WindowEvent;
/**
* \brief Keyboard button event structure (event.key.*)
*/
typedef struct SDL_KeyboardEvent
{
Uint32 type; /**< ::SDL_KEYDOWN or ::SDL_KEYUP */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 windowID; /**< The window with keyboard focus, if any */
Uint8 state; /**< ::SDL_PRESSED or ::SDL_RELEASED */
Uint8 repeat; /**< Non-zero if this is a key repeat */
Uint8 padding2;
Uint8 padding3;
SDL_Keysym keysym; /**< The key that was pressed or released */
} SDL_KeyboardEvent;
#define SDL_TEXTEDITINGEVENT_TEXT_SIZE (32)
/**
* \brief Keyboard text editing event structure (event.edit.*)
*/
typedef struct SDL_TextEditingEvent
{
Uint32 type; /**< ::SDL_TEXTEDITING */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 windowID; /**< The window with keyboard focus, if any */
char text[SDL_TEXTEDITINGEVENT_TEXT_SIZE]; /**< The editing text */
Sint32 start; /**< The start cursor of selected editing text */
Sint32 length; /**< The length of selected editing text */
} SDL_TextEditingEvent;
#define SDL_TEXTINPUTEVENT_TEXT_SIZE (32)
/**
* \brief Keyboard text input event structure (event.text.*)
*/
typedef struct SDL_TextInputEvent
{
Uint32 type; /**< ::SDL_TEXTINPUT */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 windowID; /**< The window with keyboard focus, if any */
char text[SDL_TEXTINPUTEVENT_TEXT_SIZE]; /**< The input text */
} SDL_TextInputEvent;
/**
* \brief Mouse motion event structure (event.motion.*)
*/
typedef struct SDL_MouseMotionEvent
{
Uint32 type; /**< ::SDL_MOUSEMOTION */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 windowID; /**< The window with mouse focus, if any */
Uint32 which; /**< The mouse instance id, or SDL_TOUCH_MOUSEID */
Uint32 state; /**< The current button state */
Sint32 x; /**< X coordinate, relative to window */
Sint32 y; /**< Y coordinate, relative to window */
Sint32 xrel; /**< The relative motion in the X direction */
Sint32 yrel; /**< The relative motion in the Y direction */
} SDL_MouseMotionEvent;
/**
* \brief Mouse button event structure (event.button.*)
*/
typedef struct SDL_MouseButtonEvent
{
Uint32 type; /**< ::SDL_MOUSEBUTTONDOWN or ::SDL_MOUSEBUTTONUP */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 windowID; /**< The window with mouse focus, if any */
Uint32 which; /**< The mouse instance id, or SDL_TOUCH_MOUSEID */
Uint8 button; /**< The mouse button index */
Uint8 state; /**< ::SDL_PRESSED or ::SDL_RELEASED */
Uint8 clicks; /**< 1 for single-click, 2 for double-click, etc. */
Uint8 padding1;
Sint32 x; /**< X coordinate, relative to window */
Sint32 y; /**< Y coordinate, relative to window */
} SDL_MouseButtonEvent;
/**
* \brief Mouse wheel event structure (event.wheel.*)
*/
typedef struct SDL_MouseWheelEvent
{
Uint32 type; /**< ::SDL_MOUSEWHEEL */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 windowID; /**< The window with mouse focus, if any */
Uint32 which; /**< The mouse instance id, or SDL_TOUCH_MOUSEID */
Sint32 x; /**< The amount scrolled horizontally, positive to the right and negative to the left */
Sint32 y; /**< The amount scrolled vertically, positive away from the user and negative toward the user */
Uint32 direction; /**< Set to one of the SDL_MOUSEWHEEL_* defines. When FLIPPED the values in X and Y will be opposite. Multiply by -1 to change them back */
} SDL_MouseWheelEvent;
/**
* \brief Joystick axis motion event structure (event.jaxis.*)
*/
typedef struct SDL_JoyAxisEvent
{
Uint32 type; /**< ::SDL_JOYAXISMOTION */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_JoystickID which; /**< The joystick instance id */
Uint8 axis; /**< The joystick axis index */
Uint8 padding1;
Uint8 padding2;
Uint8 padding3;
Sint16 value; /**< The axis value (range: -32768 to 32767) */
Uint16 padding4;
} SDL_JoyAxisEvent;
/**
* \brief Joystick trackball motion event structure (event.jball.*)
*/
typedef struct SDL_JoyBallEvent
{
Uint32 type; /**< ::SDL_JOYBALLMOTION */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_JoystickID which; /**< The joystick instance id */
Uint8 ball; /**< The joystick trackball index */
Uint8 padding1;
Uint8 padding2;
Uint8 padding3;
Sint16 xrel; /**< The relative motion in the X direction */
Sint16 yrel; /**< The relative motion in the Y direction */
} SDL_JoyBallEvent;
/**
* \brief Joystick hat position change event structure (event.jhat.*)
*/
typedef struct SDL_JoyHatEvent
{
Uint32 type; /**< ::SDL_JOYHATMOTION */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_JoystickID which; /**< The joystick instance id */
Uint8 hat; /**< The joystick hat index */
Uint8 value; /**< The hat position value.
* \sa ::SDL_HAT_LEFTUP ::SDL_HAT_UP ::SDL_HAT_RIGHTUP
* \sa ::SDL_HAT_LEFT ::SDL_HAT_CENTERED ::SDL_HAT_RIGHT
* \sa ::SDL_HAT_LEFTDOWN ::SDL_HAT_DOWN ::SDL_HAT_RIGHTDOWN
*
* Note that zero means the POV is centered.
*/
Uint8 padding1;
Uint8 padding2;
} SDL_JoyHatEvent;
/**
* \brief Joystick button event structure (event.jbutton.*)
*/
typedef struct SDL_JoyButtonEvent
{
Uint32 type; /**< ::SDL_JOYBUTTONDOWN or ::SDL_JOYBUTTONUP */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_JoystickID which; /**< The joystick instance id */
Uint8 button; /**< The joystick button index */
Uint8 state; /**< ::SDL_PRESSED or ::SDL_RELEASED */
Uint8 padding1;
Uint8 padding2;
} SDL_JoyButtonEvent;
/**
* \brief Joystick device event structure (event.jdevice.*)
*/
typedef struct SDL_JoyDeviceEvent
{
Uint32 type; /**< ::SDL_JOYDEVICEADDED or ::SDL_JOYDEVICEREMOVED */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Sint32 which; /**< The joystick device index for the ADDED event, instance id for the REMOVED event */
} SDL_JoyDeviceEvent;
/**
* \brief Game controller axis motion event structure (event.caxis.*)
*/
typedef struct SDL_ControllerAxisEvent
{
Uint32 type; /**< ::SDL_CONTROLLERAXISMOTION */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_JoystickID which; /**< The joystick instance id */
Uint8 axis; /**< The controller axis (SDL_GameControllerAxis) */
Uint8 padding1;
Uint8 padding2;
Uint8 padding3;
Sint16 value; /**< The axis value (range: -32768 to 32767) */
Uint16 padding4;
} SDL_ControllerAxisEvent;
/**
* \brief Game controller button event structure (event.cbutton.*)
*/
typedef struct SDL_ControllerButtonEvent
{
Uint32 type; /**< ::SDL_CONTROLLERBUTTONDOWN or ::SDL_CONTROLLERBUTTONUP */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_JoystickID which; /**< The joystick instance id */
Uint8 button; /**< The controller button (SDL_GameControllerButton) */
Uint8 state; /**< ::SDL_PRESSED or ::SDL_RELEASED */
Uint8 padding1;
Uint8 padding2;
} SDL_ControllerButtonEvent;
/**
* \brief Controller device event structure (event.cdevice.*)
*/
typedef struct SDL_ControllerDeviceEvent
{
Uint32 type; /**< ::SDL_CONTROLLERDEVICEADDED, ::SDL_CONTROLLERDEVICEREMOVED, or ::SDL_CONTROLLERDEVICEREMAPPED */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Sint32 which; /**< The joystick device index for the ADDED event, instance id for the REMOVED or REMAPPED event */
} SDL_ControllerDeviceEvent;
/**
* \brief Audio device event structure (event.adevice.*)
*/
typedef struct SDL_AudioDeviceEvent
{
Uint32 type; /**< ::SDL_AUDIODEVICEADDED, or ::SDL_AUDIODEVICEREMOVED */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 which; /**< The audio device index for the ADDED event (valid until next SDL_GetNumAudioDevices() call), SDL_AudioDeviceID for the REMOVED event */
Uint8 iscapture; /**< zero if an output device, non-zero if a capture device. */
Uint8 padding1;
Uint8 padding2;
Uint8 padding3;
} SDL_AudioDeviceEvent;
/**
* \brief Touch finger event structure (event.tfinger.*)
*/
typedef struct SDL_TouchFingerEvent
{
Uint32 type; /**< ::SDL_FINGERMOTION or ::SDL_FINGERDOWN or ::SDL_FINGERUP */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_TouchID touchId; /**< The touch device id */
SDL_FingerID fingerId;
float x; /**< Normalized in the range 0...1 */
float y; /**< Normalized in the range 0...1 */
float dx; /**< Normalized in the range -1...1 */
float dy; /**< Normalized in the range -1...1 */
float pressure; /**< Normalized in the range 0...1 */
} SDL_TouchFingerEvent;
/**
* \brief Multiple Finger Gesture Event (event.mgesture.*)
*/
typedef struct SDL_MultiGestureEvent
{
Uint32 type; /**< ::SDL_MULTIGESTURE */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_TouchID touchId; /**< The touch device id */
float dTheta;
float dDist;
float x;
float y;
Uint16 numFingers;
Uint16 padding;
} SDL_MultiGestureEvent;
/**
* \brief Dollar Gesture Event (event.dgesture.*)
*/
typedef struct SDL_DollarGestureEvent
{
Uint32 type; /**< ::SDL_DOLLARGESTURE or ::SDL_DOLLARRECORD */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_TouchID touchId; /**< The touch device id */
SDL_GestureID gestureId;
Uint32 numFingers;
float error;
float x; /**< Normalized center of gesture */
float y; /**< Normalized center of gesture */
} SDL_DollarGestureEvent;
/**
* \brief An event used to request a file open by the system (event.drop.*)
* This event is enabled by default, you can disable it with SDL_EventState().
* \note If this event is enabled, you must free the filename in the event.
*/
typedef struct SDL_DropEvent
{
Uint32 type; /**< ::SDL_DROPBEGIN or ::SDL_DROPFILE or ::SDL_DROPTEXT or ::SDL_DROPCOMPLETE */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
char *file; /**< The file name, which should be freed with SDL_free(), is NULL on begin/complete */
Uint32 windowID; /**< The window that was dropped on, if any */
} SDL_DropEvent;
/**
* \brief The "quit requested" event
*/
typedef struct SDL_QuitEvent
{
Uint32 type; /**< ::SDL_QUIT */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
} SDL_QuitEvent;
/**
* \brief OS Specific event
*/
typedef struct SDL_OSEvent
{
Uint32 type; /**< ::SDL_QUIT */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
} SDL_OSEvent;
/**
* \brief A user-defined event type (event.user.*)
*/
typedef struct SDL_UserEvent
{
Uint32 type; /**< ::SDL_USEREVENT through ::SDL_LASTEVENT-1 */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 windowID; /**< The associated window if any */
Sint32 code; /**< User defined event code */
void *data1; /**< User defined data pointer */
void *data2; /**< User defined data pointer */
} SDL_UserEvent;
struct SDL_SysWMmsg;
typedef struct SDL_SysWMmsg SDL_SysWMmsg;
/**
* \brief A video driver dependent system event (event.syswm.*)
* This event is disabled by default, you can enable it with SDL_EventState()
*
* \note If you want to use this event, you should include SDL_syswm.h.
*/
typedef struct SDL_SysWMEvent
{
Uint32 type; /**< ::SDL_SYSWMEVENT */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
SDL_SysWMmsg *msg; /**< driver dependent data, defined in SDL_syswm.h */
} SDL_SysWMEvent;
/**
* \brief General event structure
*/
typedef union SDL_Event
{
Uint32 type; /**< Event type, shared with all events */
SDL_CommonEvent common; /**< Common event data */
SDL_WindowEvent window; /**< Window event data */
SDL_KeyboardEvent key; /**< Keyboard event data */
SDL_TextEditingEvent edit; /**< Text editing event data */
SDL_TextInputEvent text; /**< Text input event data */
SDL_MouseMotionEvent motion; /**< Mouse motion event data */
SDL_MouseButtonEvent button; /**< Mouse button event data */
SDL_MouseWheelEvent wheel; /**< Mouse wheel event data */
SDL_JoyAxisEvent jaxis; /**< Joystick axis event data */
SDL_JoyBallEvent jball; /**< Joystick ball event data */
SDL_JoyHatEvent jhat; /**< Joystick hat event data */
SDL_JoyButtonEvent jbutton; /**< Joystick button event data */
SDL_JoyDeviceEvent jdevice; /**< Joystick device change event data */
SDL_ControllerAxisEvent caxis; /**< Game Controller axis event data */
SDL_ControllerButtonEvent cbutton; /**< Game Controller button event data */
SDL_ControllerDeviceEvent cdevice; /**< Game Controller device event data */
SDL_AudioDeviceEvent adevice; /**< Audio device event data */
SDL_QuitEvent quit; /**< Quit request event data */
SDL_UserEvent user; /**< Custom event data */
SDL_SysWMEvent syswm; /**< System dependent window event data */
SDL_TouchFingerEvent tfinger; /**< Touch finger event data */
SDL_MultiGestureEvent mgesture; /**< Gesture event data */
SDL_DollarGestureEvent dgesture; /**< Gesture event data */
SDL_DropEvent drop; /**< Drag and drop event data */
/* This is necessary for ABI compatibility between Visual C++ and GCC
Visual C++ will respect the push pack pragma and use 52 bytes for
this structure, and GCC will use the alignment of the largest datatype
within the union, which is 8 bytes.
So... we'll add padding to force the size to be 56 bytes for both.
*/
Uint8 padding[56];
} SDL_Event;
/* Function prototypes */
/**
* Pumps the event loop, gathering events from the input devices.
*
* This function updates the event queue and internal input device state.
*
* This should only be run in the thread that sets the video mode.
*/
extern DECLSPEC void SDLCALL SDL_PumpEvents(void);
/* @{ */
typedef enum
{
SDL_ADDEVENT,
SDL_PEEKEVENT,
SDL_GETEVENT
} SDL_eventaction;
/**
* Checks the event queue for messages and optionally returns them.
*
* If \c action is ::SDL_ADDEVENT, up to \c numevents events will be added to
* the back of the event queue.
*
* If \c action is ::SDL_PEEKEVENT, up to \c numevents events at the front
* of the event queue, within the specified minimum and maximum type,
* will be returned and will not be removed from the queue.
*
* If \c action is ::SDL_GETEVENT, up to \c numevents events at the front
* of the event queue, within the specified minimum and maximum type,
* will be returned and will be removed from the queue.
*
* \return The number of events actually stored, or -1 if there was an error.
*
* This function is thread-safe.
*/
extern DECLSPEC int SDLCALL SDL_PeepEvents(SDL_Event * events, int numevents,
SDL_eventaction action,
Uint32 minType, Uint32 maxType);
/* @} */
/**
* Checks to see if certain event types are in the event queue.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_HasEvent(Uint32 type);
extern DECLSPEC SDL_bool SDLCALL SDL_HasEvents(Uint32 minType, Uint32 maxType);
/**
* This function clears events from the event queue
* This function only affects currently queued events. If you want to make
* sure that all pending OS events are flushed, you can call SDL_PumpEvents()
* on the main thread immediately before the flush call.
*/
extern DECLSPEC void SDLCALL SDL_FlushEvent(Uint32 type);
extern DECLSPEC void SDLCALL SDL_FlushEvents(Uint32 minType, Uint32 maxType);
/**
* \brief Polls for currently pending events.
*
* \return 1 if there are any pending events, or 0 if there are none available.
*
* \param event If not NULL, the next event is removed from the queue and
* stored in that area.
*/
extern DECLSPEC int SDLCALL SDL_PollEvent(SDL_Event * event);
/**
* \brief Waits indefinitely for the next available event.
*
* \return 1, or 0 if there was an error while waiting for events.
*
* \param event If not NULL, the next event is removed from the queue and
* stored in that area.
*/
extern DECLSPEC int SDLCALL SDL_WaitEvent(SDL_Event * event);
/**
* \brief Waits until the specified timeout (in milliseconds) for the next
* available event.
*
* \return 1, or 0 if there was an error while waiting for events.
*
* \param event If not NULL, the next event is removed from the queue and
* stored in that area.
* \param timeout The timeout (in milliseconds) to wait for next event.
*/
extern DECLSPEC int SDLCALL SDL_WaitEventTimeout(SDL_Event * event,
int timeout);
/**
* \brief Add an event to the event queue.
*
* \return 1 on success, 0 if the event was filtered, or -1 if the event queue
* was full or there was some other error.
*/
extern DECLSPEC int SDLCALL SDL_PushEvent(SDL_Event * event);
typedef int (SDLCALL * SDL_EventFilter) (void *userdata, SDL_Event * event);
/**
* Sets up a filter to process all events before they change internal state and
* are posted to the internal event queue.
*
* The filter is prototyped as:
* \code
* int SDL_EventFilter(void *userdata, SDL_Event * event);
* \endcode
*
* If the filter returns 1, then the event will be added to the internal queue.
* If it returns 0, then the event will be dropped from the queue, but the
* internal state will still be updated. This allows selective filtering of
* dynamically arriving events.
*
* \warning Be very careful of what you do in the event filter function, as
* it may run in a different thread!
*
* There is one caveat when dealing with the ::SDL_QuitEvent event type. The
* event filter is only called when the window manager desires to close the
* application window. If the event filter returns 1, then the window will
* be closed, otherwise the window will remain open if possible.
*
* If the quit event is generated by an interrupt signal, it will bypass the
* internal queue and be delivered to the application at the next event poll.
*/
extern DECLSPEC void SDLCALL SDL_SetEventFilter(SDL_EventFilter filter,
void *userdata);
/**
* Return the current event filter - can be used to "chain" filters.
* If there is no event filter set, this function returns SDL_FALSE.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_GetEventFilter(SDL_EventFilter * filter,
void **userdata);
/**
* Add a function which is called when an event is added to the queue.
*/
extern DECLSPEC void SDLCALL SDL_AddEventWatch(SDL_EventFilter filter,
void *userdata);
/**
* Remove an event watch function added with SDL_AddEventWatch()
*/
extern DECLSPEC void SDLCALL SDL_DelEventWatch(SDL_EventFilter filter,
void *userdata);
/**
* Run the filter function on the current event queue, removing any
* events for which the filter returns 0.
*/
extern DECLSPEC void SDLCALL SDL_FilterEvents(SDL_EventFilter filter,
void *userdata);
/* @{ */
#define SDL_QUERY -1
#define SDL_IGNORE 0
#define SDL_DISABLE 0
#define SDL_ENABLE 1
/**
* This function allows you to set the state of processing certain events.
* - If \c state is set to ::SDL_IGNORE, that event will be automatically
* dropped from the event queue and will not be filtered.
* - If \c state is set to ::SDL_ENABLE, that event will be processed
* normally.
* - If \c state is set to ::SDL_QUERY, SDL_EventState() will return the
* current processing state of the specified event.
*/
extern DECLSPEC Uint8 SDLCALL SDL_EventState(Uint32 type, int state);
/* @} */
#define SDL_GetEventState(type) SDL_EventState(type, SDL_QUERY)
/**
* This function allocates a set of user-defined events, and returns
* the beginning event number for that set of events.
*
* If there aren't enough user-defined events left, this function
* returns (Uint32)-1
*/
extern DECLSPEC Uint32 SDLCALL SDL_RegisterEvents(int numevents);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_events_h_ */
/* vi: set ts=4 sw=4 expandtab: */

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@ -0,0 +1,136 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_filesystem.h
*
* \brief Include file for filesystem SDL API functions
*/
#ifndef SDL_filesystem_h_
#define SDL_filesystem_h_
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief Get the path where the application resides.
*
* Get the "base path". This is the directory where the application was run
* from, which is probably the installation directory, and may or may not
* be the process's current working directory.
*
* This returns an absolute path in UTF-8 encoding, and is guaranteed to
* end with a path separator ('\\' on Windows, '/' most other places).
*
* The pointer returned by this function is owned by you. Please call
* SDL_free() on the pointer when you are done with it, or it will be a
* memory leak. This is not necessarily a fast call, though, so you should
* call this once near startup and save the string if you need it.
*
* Some platforms can't determine the application's path, and on other
* platforms, this might be meaningless. In such cases, this function will
* return NULL.
*
* \return String of base dir in UTF-8 encoding, or NULL on error.
*
* \sa SDL_GetPrefPath
*/
extern DECLSPEC char *SDLCALL SDL_GetBasePath(void);
/**
* \brief Get the user-and-app-specific path where files can be written.
*
* Get the "pref dir". This is meant to be where users can write personal
* files (preferences and save games, etc) that are specific to your
* application. This directory is unique per user, per application.
*
* This function will decide the appropriate location in the native filesystem,
* create the directory if necessary, and return a string of the absolute
* path to the directory in UTF-8 encoding.
*
* On Windows, the string might look like:
* "C:\\Users\\bob\\AppData\\Roaming\\My Company\\My Program Name\\"
*
* On Linux, the string might look like:
* "/home/bob/.local/share/My Program Name/"
*
* On Mac OS X, the string might look like:
* "/Users/bob/Library/Application Support/My Program Name/"
*
* (etc.)
*
* You specify the name of your organization (if it's not a real organization,
* your name or an Internet domain you own might do) and the name of your
* application. These should be untranslated proper names.
*
* Both the org and app strings may become part of a directory name, so
* please follow these rules:
*
* - Try to use the same org string (including case-sensitivity) for
* all your applications that use this function.
* - Always use a unique app string for each one, and make sure it never
* changes for an app once you've decided on it.
* - Unicode characters are legal, as long as it's UTF-8 encoded, but...
* - ...only use letters, numbers, and spaces. Avoid punctuation like
* "Game Name 2: Bad Guy's Revenge!" ... "Game Name 2" is sufficient.
*
* This returns an absolute path in UTF-8 encoding, and is guaranteed to
* end with a path separator ('\\' on Windows, '/' most other places).
*
* The pointer returned by this function is owned by you. Please call
* SDL_free() on the pointer when you are done with it, or it will be a
* memory leak. This is not necessarily a fast call, though, so you should
* call this once near startup and save the string if you need it.
*
* You should assume the path returned by this function is the only safe
* place to write files (and that SDL_GetBasePath(), while it might be
* writable, or even the parent of the returned path, aren't where you
* should be writing things).
*
* Some platforms can't determine the pref path, and on other
* platforms, this might be meaningless. In such cases, this function will
* return NULL.
*
* \param org The name of your organization.
* \param app The name of your application.
* \return UTF-8 string of user dir in platform-dependent notation. NULL
* if there's a problem (creating directory failed, etc).
*
* \sa SDL_GetBasePath
*/
extern DECLSPEC char *SDLCALL SDL_GetPrefPath(const char *org, const char *app);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_filesystem_h_ */
/* vi: set ts=4 sw=4 expandtab: */

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