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windowscodecs: Implement conversion from 64bppRGBA to 32bppBGRA.

This commit is contained in:
Vincent Povirk 2009-08-27 13:40:23 -05:00 committed by Alexandre Julliard
parent 7f73787947
commit 0a495723c0
2 changed files with 48 additions and 0 deletions
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47
dlls/windowscodecs/converter.c
View File

@ -51,6 +51,7 @@ enum pixelformat {
format_32bppBGR,
format_32bppBGRA,
format_48bppRGB,
format_64bppRGBA,
};
typedef HRESULT (*copyfunc)(struct FormatConverter *This, const WICRect *prc,
@ -626,6 +627,51 @@ static HRESULT copypixels_to_32bppBGRA(struct FormatConverter *This, const WICRe
return res;
}
return S_OK;
case format_64bppRGBA:
if (prc)
{
HRESULT res;
UINT x, y;
BYTE *srcdata;
UINT srcstride, srcdatasize;
const BYTE *srcrow;
const BYTE *srcpixel;
BYTE *dstrow;
DWORD *dstpixel;
srcstride = 8 * prc->Width;
srcdatasize = srcstride * prc->Height;
srcdata = HeapAlloc(GetProcessHeap(), 0, srcdatasize);
if (!srcdata) return E_OUTOFMEMORY;
res = IWICBitmapSource_CopyPixels(This->source, prc, srcstride, srcdatasize, srcdata);
if (SUCCEEDED(res))
{
srcrow = srcdata;
dstrow = pbBuffer;
for (y=0; y<prc->Height; y++) {
srcpixel=srcrow;
dstpixel=(DWORD*)dstrow;
for (x=0; x<prc->Width; x++) {
BYTE red, green, blue, alpha;
red = *srcpixel++; srcpixel++;
green = *srcpixel++; srcpixel++;
blue = *srcpixel++; srcpixel++;
alpha = *srcpixel++; srcpixel++;
*dstpixel++=alpha<<24|red<<16|green<<8|blue;
}
srcrow += srcstride;
dstrow += cbStride;
}
}
HeapFree(GetProcessHeap(), 0, srcdata);
return res;
}
return S_OK;
default:
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
@ -662,6 +708,7 @@ static const struct pixelformatinfo supported_formats[] = {
{format_32bppBGR, &GUID_WICPixelFormat32bppBGR, copypixels_to_32bppBGR},
{format_32bppBGRA, &GUID_WICPixelFormat32bppBGRA, copypixels_to_32bppBGRA},
{format_48bppRGB, &GUID_WICPixelFormat48bppRGB, NULL},
{format_64bppRGBA, &GUID_WICPixelFormat64bppRGBA, NULL},
{0}
};

1
dlls/windowscodecs/regsvr.c
View File

@ -932,6 +932,7 @@ static GUID const * const converter_formats[] = {
&GUID_WICPixelFormat32bppBGR,
&GUID_WICPixelFormat32bppBGRA,
&GUID_WICPixelFormat48bppRGB,
&GUID_WICPixelFormat64bppRGBA,
NULL
};