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windowscodecs: Implement conversion from 16bppBGRA to 32bppBGRA.

This commit is contained in:
Vincent Povirk 2010-10-20 16:42:50 -05:00 committed by Alexandre Julliard
parent b26d789db2
commit b782417707
2 changed files with 51 additions and 0 deletions
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50
dlls/windowscodecs/converter.c
View File

@ -47,6 +47,7 @@ enum pixelformat {
format_16bppGray,
format_16bppBGR555,
format_16bppBGR565,
format_16bppBGRA5551,
format_24bppBGR,
format_32bppBGR,
format_32bppBGRA,
@ -523,6 +524,54 @@ static HRESULT copypixels_to_32bppBGRA(struct FormatConverter *This, const WICRe
return res;
}
return S_OK;
case format_16bppBGRA5551:
if (prc)
{
HRESULT res;
UINT x, y;
BYTE *srcdata;
UINT srcstride, srcdatasize;
const BYTE *srcrow;
const WORD *srcpixel;
BYTE *dstrow;
DWORD *dstpixel;
srcstride = 2 * 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=(const WORD*)srcrow;
dstpixel=(DWORD*)dstrow;
for (x=0; x<prc->Width; x++) {
WORD srcval;
srcval=*srcpixel++;
*dstpixel++=((srcval & 0x8000) ? 0xff000000 : 0) | /* alpha */
((srcval << 9) & 0xf80000) | /* r */
((srcval << 4) & 0x070000) | /* r - 3 bits */
((srcval << 6) & 0x00f800) | /* g */
((srcval << 1) & 0x000700) | /* g - 3 bits */
((srcval << 3) & 0x0000f8) | /* b */
((srcval >> 2) & 0x000007); /* b - 3 bits */
}
srcrow += srcstride;
dstrow += cbStride;
}
}
HeapFree(GetProcessHeap(), 0, srcdata);
return res;
}
return S_OK;
case format_24bppBGR:
if (prc)
{
@ -727,6 +776,7 @@ static const struct pixelformatinfo supported_formats[] = {
{format_16bppGray, &GUID_WICPixelFormat16bppGray, NULL},
{format_16bppBGR555, &GUID_WICPixelFormat16bppBGR555, NULL},
{format_16bppBGR565, &GUID_WICPixelFormat16bppBGR565, NULL},
{format_16bppBGRA5551, &GUID_WICPixelFormat16bppBGRA5551, NULL},
{format_24bppBGR, &GUID_WICPixelFormat24bppBGR, NULL},
{format_32bppBGR, &GUID_WICPixelFormat32bppBGR, copypixels_to_32bppBGR},
{format_32bppBGRA, &GUID_WICPixelFormat32bppBGRA, copypixels_to_32bppBGRA},

1
dlls/windowscodecs/regsvr.c
View File

@ -1274,6 +1274,7 @@ static GUID const * const converter_formats[] = {
&GUID_WICPixelFormat16bppGray,
&GUID_WICPixelFormat16bppBGR555,
&GUID_WICPixelFormat16bppBGR565,
&GUID_WICPixelFormat16bppBGRA5551,
&GUID_WICPixelFormat24bppBGR,
&GUID_WICPixelFormat32bppBGR,
&GUID_WICPixelFormat32bppBGRA,