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Update r_data.c

This commit is contained in:
Jaime Passos 2019-10-28 14:36:19 -03:00
parent 79e99dc471
commit 1a44159ce9
1 changed files with 18 additions and 30 deletions
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48
src/r_data.c
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@ -2683,37 +2683,25 @@ void R_PatchToFlat_16bpp(patch_t *patch, UINT16 *raw, boolean flip)
desttop = raw;
deststop = desttop + (SHORT(patch->width) * SHORT(patch->height));
#define DEAR_GOD_FORGIVE_ME_FOR_MY_MACROS \
{ \
INT32 topdelta, prevdelta = -1; \
column = (column_t *)((UINT8 *)patch + LONG(patch->columnofs[col])); \
while (column->topdelta != 0xff) \
{ \
topdelta = column->topdelta; \
if (topdelta <= prevdelta) \
topdelta += prevdelta; \
prevdelta = topdelta; \
dest = desttop + (topdelta * SHORT(patch->width)); \
source = (UINT8 *)(column) + 3; \
for (ofs = 0; dest < deststop && ofs < column->length; ofs++) \
{ \
*dest = source[ofs]; \
dest += SHORT(patch->width); \
} \
column = (column_t *)((UINT8 *)column + column->length + 4); \
} \
}
if (!flip)
for (col = 0; col < SHORT(patch->width); col++, desttop++)
{
for (col = 0; col < SHORT(patch->width); col++, desttop++)
DEAR_GOD_FORGIVE_ME_FOR_MY_MACROS
}
else
{
// flipped
for (col = SHORT(patch->width)-1; col >= 0; col--, desttop++)
DEAR_GOD_FORGIVE_ME_FOR_MY_MACROS
INT32 topdelta, prevdelta = -1;
column = (column_t *)((UINT8 *)patch + LONG(patch->columnofs[flip ? (patch->width-1-col) : col]));
while (column->topdelta != 0xff)
{
topdelta = column->topdelta;
if (topdelta <= prevdelta)
topdelta += prevdelta;
prevdelta = topdelta;
dest = desttop + (topdelta * SHORT(patch->width));
source = (UINT8 *)(column) + 3;
for (ofs = 0; dest < deststop && ofs < column->length; ofs++)
{
*dest = source[ofs];
dest += SHORT(patch->width);
}
column = (column_t *)((UINT8 *)column + column->length + 4);
}
}
}