From 0ca87560ab09b19d07850afee1da4cbcf7017b2d Mon Sep 17 00:00:00 2001
From: Alam Ed Arias <alam@srb2.org>
Date: Thu, 5 Dec 2019 12:33:18 -0500
Subject: [PATCH 1/4] Fix building libpng and zlib with MSVC

---
 libs/libpng-src/png.h                         |   4 +-
 libs/libpng-src/pngpriv.h                     |   2 +-
 libs/libpng-src/projects/visualc10/.gitignore |   5 +
 .../projects/visualc10/libpng.vcxproj         | 730 ++++++++++++++++++
 libs/zlib/projects/visualc10/zlib.vcxproj     |   8 +-
 libs/zlib/zconf.h                             |   2 +
 src/win32/Makefile.cfg                        |   2 +-
 7 files changed, 747 insertions(+), 6 deletions(-)
 create mode 100644 libs/libpng-src/projects/visualc10/.gitignore
 create mode 100644 libs/libpng-src/projects/visualc10/libpng.vcxproj

diff --git a/libs/libpng-src/png.h b/libs/libpng-src/png.h
index b12174ba3..460489bea 100644
--- a/libs/libpng-src/png.h
+++ b/libs/libpng-src/png.h
@@ -327,7 +327,7 @@
 /* If pnglibconf.h is missing, you can
  * copy scripts/pnglibconf.h.prebuilt to pnglibconf.h
  */
-#   include "pnglibconf.h"
+#   include "projects\pnglibconf.h"
 #endif
 
 #define PNG_APNG_SUPPORTED
@@ -336,7 +336,7 @@
 
 #ifndef PNG_VERSION_INFO_ONLY
 /* Machine specific configuration. */
-#  include "pngconf.h"
+#  include "projects\pngconf.h"
 #endif
 
 /*
diff --git a/libs/libpng-src/pngpriv.h b/libs/libpng-src/pngpriv.h
index 57e1bf989..601ff00d3 100644
--- a/libs/libpng-src/pngpriv.h
+++ b/libs/libpng-src/pngpriv.h
@@ -69,7 +69,7 @@
  * before png.h is included, but load the configuration now if it is available.
  */
 #ifndef PNGLCONF_H
-#  include "pnglibconf.h"
+#  include "projects/pnglibconf.h"
 #endif
 
 /* Local renames may change non-exported API functions from png.h */
diff --git a/libs/libpng-src/projects/visualc10/.gitignore b/libs/libpng-src/projects/visualc10/.gitignore
new file mode 100644
index 000000000..e1bec81fc
--- /dev/null
+++ b/libs/libpng-src/projects/visualc10/.gitignore
@@ -0,0 +1,5 @@
+/Win32
+/x64
+/libpng.vcproj.*.*.user
+/ARM
+/ARM64
diff --git a/libs/libpng-src/projects/visualc10/libpng.vcxproj b/libs/libpng-src/projects/visualc10/libpng.vcxproj
new file mode 100644
index 000000000..eaa3d4ffb
--- /dev/null
+++ b/libs/libpng-src/projects/visualc10/libpng.vcxproj
@@ -0,0 +1,730 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|ARM">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|ARM64">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM">
+      <Configuration>Release</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM64">
+      <Configuration>Release</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{72B01ACA-7A1A-4F7B-ACEF-2607299CF052}</ProjectGuid>
+    <RootNamespace>libpng</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0.16299.0</WindowsTargetPlatformVersion>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
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+    <PlatformToolset>v140</PlatformToolset>
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+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v141</PlatformToolset>
+    <WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>
+  </PropertyGroup>
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+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</ExcludedFromBuild>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</ExcludedFromBuild>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</ExcludedFromBuild>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</ExcludedFromBuild>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\zlib\projects\visualc10\zlib.vcxproj">
+      <Project>{73a5729c-7323-41d4-ab48-8a03c9f81603}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/libs/zlib/projects/visualc10/zlib.vcxproj b/libs/zlib/projects/visualc10/zlib.vcxproj
index a7055ddb8..de7b2aaab 100644
--- a/libs/zlib/projects/visualc10/zlib.vcxproj
+++ b/libs/zlib/projects/visualc10/zlib.vcxproj
@@ -143,7 +143,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;ASMV;ASMINF;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -267,7 +267,7 @@
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>WIN32;NDEBUG;ASMV;ASMINF;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <FunctionLevelLinking>true</FunctionLevelLinking>
@@ -570,6 +570,8 @@
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
     </MASM>
     <MASM Include="..\..\contrib\masmx86\match686.asm">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
@@ -578,6 +580,8 @@
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
     </MASM>
     <MASM Include="..\..\contrib\masmx64\gvmat64.asm">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
diff --git a/libs/zlib/zconf.h b/libs/zlib/zconf.h
index 5e1d68a00..1f7cfed46 100644
--- a/libs/zlib/zconf.h
+++ b/libs/zlib/zconf.h
@@ -472,7 +472,9 @@ typedef uLong FAR uLongf;
 #endif
 #ifndef Z_SOLO
 #  if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+#ifndef _MSC_VER
 #    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#endif
 #    ifdef VMS
 #      include <unixio.h>       /* for off_t */
 #    endif
diff --git a/src/win32/Makefile.cfg b/src/win32/Makefile.cfg
index 63bbcfaf3..27926b208 100644
--- a/src/win32/Makefile.cfg
+++ b/src/win32/Makefile.cfg
@@ -117,7 +117,7 @@ endif
 
 ifndef NOPNG
 ifndef PNG_CONFIG
-	PNG_CFLAGS?=-I../libs/libpng-src -I../libs/libpng-src/projects
+	PNG_CFLAGS?=-I../libs/libpng-src
 ifdef MINGW64
 	PNG_LDFLAGS?=-L../libs/libpng-src/projects -lpng64
 else

From 3120c99eeb70b266fbf1a68dec1287609a69406a Mon Sep 17 00:00:00 2001
From: Alam Ed Arias <alam@srb2.org>
Date: Thu, 5 Dec 2019 12:38:50 -0500
Subject: [PATCH 2/4] Fix compiling for MSVC

---
 src/hardware/r_opengl/r_opengl.c | 16 ++++++++--------
 src/m_menu.c                     |  8 ++++----
 src/p_mobj.c                     |  2 +-
 src/r_patch.c                    |  4 ++--
 4 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/src/hardware/r_opengl/r_opengl.c b/src/hardware/r_opengl/r_opengl.c
index c009d3459..ec99eb307 100644
--- a/src/hardware/r_opengl/r_opengl.c
+++ b/src/hardware/r_opengl/r_opengl.c
@@ -1404,7 +1404,7 @@ EXPORT void HWRAPI(DrawPolygon) (FSurfaceInfo  *pSurf,
 
 typedef struct vbo_vertex_s
 {
-	float x, y, z;
+	double x, y, z;
 	float u, v;
 	unsigned char r, g, b, a;
 } vbo_vertex_t;
@@ -1448,17 +1448,17 @@ static INT32 lasttex = -1;
 
 static void SkyVertex(vbo_vertex_t *vbo, int r, int c)
 {
-	const float radians = (M_PIl / 180.0f);
-	const float scale = 10000.0f;
+	const double radians = (M_PIl / 180.0f);
+	const double scale = 10000.0f;
 	const float maxSideAngle = 60.0f;
 
 	float topAngle = (c / (float)columns * 360.0f);
 	float sideAngle = (maxSideAngle * (rows - r) / rows);
-	float height = sin(sideAngle * radians);
-	float realRadius = scale * cos(sideAngle * radians);
-	float x = realRadius * cos(topAngle * radians);
-	float y = (!yflip) ? scale * height : -scale * height;
-	float z = realRadius * sin(topAngle * radians);
+	double height = sin(sideAngle * radians);
+	double realRadius = scale * cos(sideAngle * radians);
+	double x = realRadius * cos(topAngle * radians);
+	double y = (!yflip) ? scale * height : -scale * height;
+	double z = realRadius * sin(topAngle * radians);
 	float timesRepeat = (4 * (256.0f / texw));
 	if (fpclassify(timesRepeat) == FP_ZERO)
 		timesRepeat = 1.0f;
diff --git a/src/m_menu.c b/src/m_menu.c
index edba61f30..2a8a34426 100644
--- a/src/m_menu.c
+++ b/src/m_menu.c
@@ -5361,7 +5361,7 @@ static void M_DrawNightsAttackBackground(void)
 	M_DrawNightsAttackMountains();
 
 	// back top foreground patch
-	x = -(ntsatkdrawtimer%backtopwidth);
+	x = 0-(ntsatkdrawtimer%backtopwidth);
 	V_DrawScaledPatch(x, y, V_SNAPTOTOP|V_SNAPTOLEFT, backtopfg);
 	for (i = 0; i < 3; i++)
 	{
@@ -5372,7 +5372,7 @@ static void M_DrawNightsAttackBackground(void)
 	}
 
 	// front top foreground patch
-	x = -((ntsatkdrawtimer*2)%fronttopwidth);
+	x = 0-((ntsatkdrawtimer*2)%fronttopwidth);
 	V_DrawScaledPatch(x, y, V_SNAPTOTOP|V_SNAPTOLEFT, fronttopfg);
 	for (i = 0; i < 3; i++)
 	{
@@ -5383,7 +5383,7 @@ static void M_DrawNightsAttackBackground(void)
 	}
 
 	// back bottom foreground patch
-	x = -(ntsatkdrawtimer%backbottomwidth);
+	x = 0-(ntsatkdrawtimer%backbottomwidth);
 	y = BASEVIDHEIGHT - backbottomheight;
 	V_DrawScaledPatch(x, y, V_SNAPTOBOTTOM|V_SNAPTOLEFT, backbottomfg);
 	for (i = 0; i < 3; i++)
@@ -5395,7 +5395,7 @@ static void M_DrawNightsAttackBackground(void)
 	}
 
 	// front bottom foreground patch
-	x = -((ntsatkdrawtimer*2)%frontbottomwidth);
+	x = 0-((ntsatkdrawtimer*2)%frontbottomwidth);
 	y = BASEVIDHEIGHT - frontbottomheight;
 	V_DrawScaledPatch(x, y, V_SNAPTOBOTTOM|V_SNAPTOLEFT, frontbottomfg);
 	for (i = 0; i < 3; i++)
diff --git a/src/p_mobj.c b/src/p_mobj.c
index 0ec3d7cc1..42c5234df 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -4652,7 +4652,7 @@ static void P_Boss3Thinker(mobj_t *mobj)
 			{
 				UINT8 i, numtospawn = 24;
 				angle_t ang = 0, interval = FixedAngle((360 << FRACBITS) / numtospawn);
-				mobj_t *shock, *sfirst = NULL, *sprev = NULL;
+				mobj_t *shock = NULL, *sfirst = NULL, *sprev = NULL;
 
 				mobj->movecount = mobj->health+1;
 				mobj->movefactor = -512*FRACUNIT;
diff --git a/src/r_patch.c b/src/r_patch.c
index 639f682fd..9dcf59024 100644
--- a/src/r_patch.c
+++ b/src/r_patch.c
@@ -786,8 +786,8 @@ static void R_ParseSpriteInfoFrame(spriteinfo_t *info)
 {
 	char *sprinfoToken;
 	size_t sprinfoTokenLength;
-	char *frameChar;
-	UINT8 frameFrame;
+	char *frameChar = NULL;
+	UINT8 frameFrame = -1;
 #ifdef ROTSPRITE
 	INT16 frameXPivot = 0;
 	INT16 frameYPivot = 0;

From f10f526562ccc900a9e6a05ce0353c8e981e8039 Mon Sep 17 00:00:00 2001
From: Alam Ed Arias <alam@srb2.org>
Date: Thu, 5 Dec 2019 12:50:14 -0500
Subject: [PATCH 3/4] Fix compiling Mingw binaries on an Unix host

---
 libs/libpng-src/png.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libs/libpng-src/png.h b/libs/libpng-src/png.h
index 460489bea..a01077bf0 100644
--- a/libs/libpng-src/png.h
+++ b/libs/libpng-src/png.h
@@ -327,7 +327,7 @@
 /* If pnglibconf.h is missing, you can
  * copy scripts/pnglibconf.h.prebuilt to pnglibconf.h
  */
-#   include "projects\pnglibconf.h"
+#   include "projects/pnglibconf.h"
 #endif
 
 #define PNG_APNG_SUPPORTED
@@ -336,7 +336,7 @@
 
 #ifndef PNG_VERSION_INFO_ONLY
 /* Machine specific configuration. */
-#  include "projects\pngconf.h"
+#  include "projects/pngconf.h"
 #endif
 
 /*

From c0ec90901e156e9c4a448646c2f6bddf4646d800 Mon Sep 17 00:00:00 2001
From: Alam Ed Arias <alam@srb2.org>
Date: Thu, 5 Dec 2019 15:50:44 -0500
Subject: [PATCH 4/4] frameFrame is unsigned, let set it to 0xFF

---
 src/r_patch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/r_patch.c b/src/r_patch.c
index 9dcf59024..e93d8e04f 100644
--- a/src/r_patch.c
+++ b/src/r_patch.c
@@ -787,7 +787,7 @@ static void R_ParseSpriteInfoFrame(spriteinfo_t *info)
 	char *sprinfoToken;
 	size_t sprinfoTokenLength;
 	char *frameChar = NULL;
-	UINT8 frameFrame = -1;
+	UINT8 frameFrame = 0xFF;
 #ifdef ROTSPRITE
 	INT16 frameXPivot = 0;
 	INT16 frameYPivot = 0;