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[LEAK INFORMED] match sub_819A080

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This commit is contained in:
Kurausukun 2020-11-26 01:30:59 -05:00
parent 8d29f65c6c
commit 94cbd3ff1b
1 changed files with 20 additions and 21 deletions
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41
src/menu.c
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@ -2016,7 +2016,7 @@ void sub_819A080(const struct Bitmap *src, struct Bitmap *dst, u16 srcX, u16 src
{
int loopSrcY, loopDstY, loopSrcX, loopDstX, xEnd, yEnd, multiplierSrcY, multiplierDstY;
const u8 *pixelsSrc;
u16 *pixelsDst;
u8 *pixelsDst;
u16 toOrr;
if (dst->width - dstX < width)
@ -2037,53 +2037,52 @@ void sub_819A080(const struct Bitmap *src, struct Bitmap *dst, u16 srcX, u16 src
for (loopSrcX = srcX, loopDstX = dstX; loopSrcX < xEnd; loopSrcX++, loopDstX++)
{
pixelsSrc = src->pixels + ((loopSrcX >> 1) & 3) + ((loopSrcX >> 3) << 5) + (((loopSrcY >> 3) * multiplierSrcY) << 5) + ((u32)(loopSrcY << 0x1d) >> 0x1B);
pixelsDst = (void*) dst->pixels + ((loopDstX >> 1) & 3) + ((loopDstX >> 3) << 5) + ((( loopDstY >> 3) * multiplierDstY) << 5) + ((u32)( loopDstY << 0x1d) >> 0x1B);
pixelsDst = (void*) dst->pixels + ((loopDstX >> 1) & 3) + ((loopDstX >> 3) << 5) + ((( loopDstY >> 3) * multiplierDstY) << 5) + ((u32)(loopDstY << 0x1d) >> 0x1B);
if ((uintptr_t )pixelsDst & 0x1)
{
pixelsDst = (void*)(pixelsDst) - 1;
pixelsDst--;
if (loopDstX & 0x1)
{
toOrr = *pixelsDst & 0x0fff;
toOrr = *(vu16*)pixelsDst;
toOrr &= 0x0fff;
if (loopSrcX & 0x1)
*pixelsDst = toOrr | ((*pixelsSrc & 0xf0) << 8);
toOrr |= ((*pixelsSrc & 0xf0) << 8);
else
*pixelsDst = toOrr | ((*pixelsSrc & 0x0f) << 12);
toOrr |= ((*pixelsSrc & 0x0f) << 12);
}
else
{
toOrr = *pixelsDst & 0xf0ff;
toOrr = *(vu16*)pixelsDst;
toOrr &= 0xf0ff;
if (loopSrcX & 0x1)
*pixelsDst = toOrr | ((*pixelsSrc & 0xf0) << 4);
toOrr |= ((*pixelsSrc & 0xf0) << 4);
else
*pixelsDst = toOrr | ((*pixelsSrc & 0x0f) << 8);
toOrr |= ((*pixelsSrc & 0x0f) << 8);
}
}
else
{
if (loopDstX & 1)
{
toOrr = *pixelsDst & 0xff0f;
toOrr = *(vu16*)pixelsDst;
toOrr &= 0xff0f;
if (loopSrcX & 1)
*pixelsDst = toOrr | ((*pixelsSrc & 0xf0) << 0);
toOrr |= ((*pixelsSrc & 0xf0) << 0);
else
*pixelsDst = toOrr | ((*pixelsSrc & 0x0f) << 4);
toOrr |= ((*pixelsSrc & 0x0f) << 4);
}
else
{
toOrr = *pixelsDst & 0xfff0;
toOrr = *(vu16*)pixelsDst;
toOrr &= 0xfff0;
if (loopSrcX & 1)
*pixelsDst = toOrr | ((*pixelsSrc & 0xf0) >> 4);
toOrr |= ((*pixelsSrc & 0xf0) >> 4);
else
*pixelsDst = toOrr | ((*pixelsSrc & 0x0f) >> 0);
toOrr |= ((*pixelsSrc & 0x0f) >> 0);
}
}
// Needed to match, urgh.
#ifndef NONMATCHING
asm("":::"r4");
pixelsDst++;pixelsDst--;
#endif // NONMATCHING
*(vu16*)pixelsDst = toOrr;
}
}
}