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update bltfast clipping

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This commit is contained in:
FunkyFr3sh 2022-09-29 21:34:55 +02:00
parent eabad7582d
commit 94ae5cf31f
1 changed files with 17 additions and 24 deletions
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41
src/ddsurface.c
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@ -419,9 +419,25 @@ HRESULT dds_BltFast(
RECT src_rect = { 0, 0, src_surface ? src_surface->width : 0, src_surface ? src_surface->height : 0 };
if (lpSrcRect && src_surface)
{
memcpy(&src_rect, lpSrcRect, sizeof(src_rect));
int dst_x = dwX;
int dst_y = dwY;
if (dst_x < 0)
{
src_rect.left += abs(dst_x);
dst_x = 0;
}
if (dst_y < 0)
{
src_rect.top += abs(dst_y);
dst_y = 0;
}
if (src_surface)
{
if (src_rect.left < 0)
src_rect.left = 0;
@ -441,29 +457,6 @@ HRESULT dds_BltFast(
src_rect.top = src_rect.bottom;
}
int dst_x = dwX;
int dst_y = dwY;
if (dst_x < 0)
{
src_rect.left += abs(dst_x);
if (src_rect.left > src_rect.right)
src_rect.left = src_rect.right;
dst_x = 0;
}
if (dst_y < 0)
{
src_rect.top += abs(dst_y);
if (src_rect.top > src_rect.bottom)
src_rect.top = src_rect.bottom;
dst_y = 0;
}
int src_x = src_rect.left;
int src_y = src_rect.top;