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use BitBlt instead for gdi

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Nishi 2026-04-27 15:54:29 +09:00
commit b4829308d9
1 changed files with 15 additions and 3 deletions
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18
src/backend/gdi.c
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@ -551,9 +551,14 @@ static void MwLLDestroyPixmapImpl(MwLLPixmap pixmap) {
}
static void MwLLDrawPixmapImpl(MwLL handle, MwRect* rect, MwLLPixmap pixmap) {
HDC hmdc = CreateCompatibleDC(handle->gdi.hDC);
HDC hmdc = CreateCompatibleDC(handle->gdi.hDC);
#ifdef USE_PLGBLT
POINT p[3];
#endif
SetStretchBltMode(handle->gdi.hDC, HALFTONE);
#ifdef USE_PLGBLT
p[0].x = rect->x;
p[0].y = rect->y;
@ -565,8 +570,15 @@ static void MwLLDrawPixmapImpl(MwLL handle, MwRect* rect, MwLLPixmap pixmap) {
SelectObject(hmdc, pixmap->gdi.hBitmap);
SetStretchBltMode(handle->gdi.hDC, HALFTONE);
PlgBlt(handle->gdi.hDC, p, hmdc, 0, 0, pixmap->common.width, pixmap->common.height, pixmap->gdi.hMask, 0, 0);
if(PlgBlt(handle->gdi.hDC, p, hmdc, 0, 0, pixmap->common.width, pixmap->common.height, pixmap->gdi.hMask, 0, 0) == 0)
#endif
{
SelectObject(hmdc, pixmap->gdi.hMask2);
StretchBlt(handle->gdi.hDC, rect->x, rect->y, rect->width, rect->height, hmdc, 0, 0, pixmap->common.width, pixmap->common.height, SRCAND);
SelectObject(hmdc, pixmap->gdi.hBitmap);
StretchBlt(handle->gdi.hDC, rect->x, rect->y, rect->width, rect->height, hmdc, 0, 0, pixmap->common.width, pixmap->common.height, SRCPAINT);
}
DeleteDC(hmdc);
}