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windowscodecs: Implement conversion from 24bppBGR to 32bppBGRA.

This commit is contained in:
Vincent Povirk 2009-08-13 13:56:02 -05:00 committed by Alexandre Julliard
parent 3e5cdea0b4
commit 1a62109b70
2 changed files with 46 additions and 0 deletions
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45
dlls/windowscodecs/converter.c
View File

@ -39,6 +39,7 @@ enum pixelformat {
format_1bppIndexed,
format_16bppBGR555,
format_16bppBGR565,
format_24bppBGR,
format_32bppBGR,
format_32bppBGRA
};
@ -226,6 +227,49 @@ static HRESULT copypixels_to_32bppBGRA(struct FormatConverter *This, const WICRe
return res;
}
return S_OK;
case format_24bppBGR:
if (prc)
{
HRESULT res;
UINT x, y;
BYTE *srcdata;
UINT srcstride, srcdatasize;
const BYTE *srcrow;
const BYTE *srcpixel;
BYTE *dstrow;
BYTE *dstpixel;
srcstride = 3 * 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=dstrow;
for (x=0; x<prc->Width; x++) {
*dstpixel++=*srcpixel++; /* blue */
*dstpixel++=*srcpixel++; /* green */
*dstpixel++=*srcpixel++; /* red */
*dstpixel++=255; /* alpha */
}
srcrow += srcstride;
dstrow += cbStride;
}
}
HeapFree(GetProcessHeap(), 0, srcdata);
return res;
}
return S_OK;
case format_32bppBGR:
if (prc)
{
@ -269,6 +313,7 @@ static const struct pixelformatinfo supported_formats[] = {
{format_1bppIndexed, &GUID_WICPixelFormat1bppIndexed, NULL},
{format_16bppBGR555, &GUID_WICPixelFormat16bppBGR555, NULL},
{format_16bppBGR565, &GUID_WICPixelFormat16bppBGR565, NULL},
{format_24bppBGR, &GUID_WICPixelFormat24bppBGR, NULL},
{format_32bppBGR, &GUID_WICPixelFormat32bppBGR, copypixels_to_32bppBGR},
{format_32bppBGRA, &GUID_WICPixelFormat32bppBGRA, copypixels_to_32bppBGRA},
{0}

1
dlls/windowscodecs/regsvr.c
View File

@ -792,6 +792,7 @@ static GUID const * const converter_formats[] = {
&GUID_WICPixelFormat1bppIndexed,
&GUID_WICPixelFormat16bppBGR555,
&GUID_WICPixelFormat16bppBGR565,
&GUID_WICPixelFormat24bppBGR,
&GUID_WICPixelFormat32bppBGR,
&GUID_WICPixelFormat32bppBGRA,
NULL