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windowscodecs: Avoid extra conversion step BGR->RGB when converting 32bpp BGRA to 24bpp RGB.

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Signed-off-by: Vincent Povirk <vincent@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Dmitry Timoshkov 2016-09-15 16:10:15 -05:00 committed by Alexandre Julliard
parent e5ffb180c4
commit 7431380e38
2 changed files with 9 additions and 5 deletions
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13
dlls/windowscodecs/converter.c
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@ -953,6 +953,7 @@ static HRESULT copypixels_to_24bppRGB(struct FormatConverter *This, const WICRec
const BYTE *srcpixel;
BYTE *dstrow;
BYTE *dstpixel;
BYTE tmppixel[3];
srcstride = 4 * prc->Width;
srcdatasize = srcstride * prc->Height;
@ -970,16 +971,18 @@ static HRESULT copypixels_to_24bppRGB(struct FormatConverter *This, const WICRec
srcpixel=srcrow;
dstpixel=dstrow;
for (x=0; x<prc->Width; x++) {
*dstpixel++=*srcpixel++; /* blue */
*dstpixel++=*srcpixel++; /* green */
*dstpixel++=*srcpixel++; /* red */
tmppixel[0]=*srcpixel++; /* blue */
tmppixel[1]=*srcpixel++; /* green */
tmppixel[2]=*srcpixel++; /* red */
srcpixel++; /* alpha */
*dstpixel++=tmppixel[2]; /* red */
*dstpixel++=tmppixel[1]; /* green */
*dstpixel++=tmppixel[0]; /* blue */
}
srcrow += srcstride;
dstrow += cbStride;
}
reverse_bgr8(3, pbBuffer, prc->Width, prc->Height, cbStride);
}
HeapFree(GetProcessHeap(), 0, srcdata);

1
dlls/windowscodecs/tests/converter.c
View File

@ -733,6 +733,7 @@ START_TEST(converter)
test_conversion(&testdata_32bppBGR, &testdata_24bppRGB, "32bppBGR -> 24bppRGB", FALSE);
test_conversion(&testdata_24bppRGB, &testdata_32bppBGR, "24bppRGB -> 32bppBGR", FALSE);
test_conversion(&testdata_32bppBGRA, &testdata_24bppRGB, "32bppBGRA -> 24bppRGB", FALSE);
test_invalid_conversion();
test_default_converter();