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windowscodecs: Implement TiffFrameDecode_CopyPalette.

This commit is contained in:
Vincent Povirk 2010-05-29 12:09:56 -05:00 committed by Alexandre Julliard
parent ad72ecbcbf
commit 0ce1c796e4
1 changed files with 28 additions and 2 deletions
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30
dlls/windowscodecs/tiffformat.c
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@ -692,8 +692,34 @@ static HRESULT WINAPI TiffFrameDecode_GetResolution(IWICBitmapFrameDecode *iface
static HRESULT WINAPI TiffFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
IWICPalette *pIPalette)
{
FIXME("(%p,%p)\n", iface, pIPalette);
return E_NOTIMPL;
TiffFrameDecode *This = (TiffFrameDecode*)iface;
uint16 *red, *green, *blue;
WICColor colors[256];
int color_count, ret, i;
TRACE("(%p,%p)\n", iface, pIPalette);
color_count = 1<<This->decode_info.bps;
EnterCriticalSection(&This->parent->lock);
ret = pTIFFGetField(This->parent->tiff, TIFFTAG_COLORMAP, &red, &green, &blue);
LeaveCriticalSection(&This->parent->lock);
if (!ret)
{
WARN("Couldn't read color map\n");
return E_FAIL;
}
for (i=0; i<color_count; i++)
{
colors[i] = 0xff000000 |
((red[i]<<8) & 0xff0000) |
(green[i] & 0xff00) |
((blue[i]>>8) & 0xff);
}
return IWICPalette_InitializeCustom(pIPalette, colors, color_count);
}
static HRESULT TiffFrameDecode_ReadTile(TiffFrameDecode *This, UINT tile_x, UINT tile_y)