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windowscodecs: Implement InitializeCustom and GetColors for palettes.

This commit is contained in:
Vincent Povirk 2009-07-02 17:37:06 -05:00 committed by Alexandre Julliard
parent 4b9071b37b
commit 9f9b71c3ee
1 changed files with 45 additions and 4 deletions
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49
dlls/windowscodecs/palette.c
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@ -37,6 +37,9 @@ WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
typedef struct {
const IWICPaletteVtbl *lpIWICPaletteVtbl;
LONG ref;
UINT count;
WICColor *colors;
WICBitmapPaletteType type;
} PaletteImpl;
static HRESULT WINAPI PaletteImpl_QueryInterface(IWICPalette *iface, REFIID iid,
@ -79,7 +82,10 @@ static ULONG WINAPI PaletteImpl_Release(IWICPalette *iface)
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
HeapFree(GetProcessHeap(), 0, This->colors);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
@ -94,8 +100,29 @@ static HRESULT WINAPI PaletteImpl_InitializePredefined(IWICPalette *iface,
static HRESULT WINAPI PaletteImpl_InitializeCustom(IWICPalette *iface,
WICColor *pColors, UINT colorCount)
{
FIXME("(%p,%p,%u): stub\n", iface, pColors, colorCount);
return E_NOTIMPL;
PaletteImpl *This = (PaletteImpl*)iface;
WICColor *new_colors;
TRACE("(%p,%p,%u)\n", iface, pColors, colorCount);
if (colorCount == 0)
{
new_colors = NULL;
}
else
{
if (!pColors) return E_INVALIDARG;
new_colors = HeapAlloc(GetProcessHeap(), 0, sizeof(WICColor) * colorCount);
if (!new_colors) return E_OUTOFMEMORY;
memcpy(new_colors, pColors, sizeof(WICColor) * colorCount);
}
HeapFree(GetProcessHeap(), 0, This->colors);
This->colors = new_colors;
This->count = colorCount;
This->type = WICBitmapPaletteTypeCustom;
return S_OK;
}
static HRESULT WINAPI PaletteImpl_InitializeFromBitmap(IWICPalette *iface,
@ -128,8 +155,19 @@ static HRESULT WINAPI PaletteImpl_GetColorCount(IWICPalette *iface, UINT *pcCoun
static HRESULT WINAPI PaletteImpl_GetColors(IWICPalette *iface, UINT colorCount,
WICColor *pColors, UINT *pcActualColors)
{
FIXME("(%p,%i,%p,%p): stub\n", iface, colorCount, pColors, pcActualColors);
return E_NOTIMPL;
PaletteImpl *This = (PaletteImpl*)iface;
TRACE("(%p,%i,%p,%p)\n", iface, colorCount, pColors, pcActualColors);
if (!pColors || !pcActualColors) return E_INVALIDARG;
if (This->count < colorCount) colorCount = This->count;
memcpy(pColors, This->colors, sizeof(WICColor) * colorCount);
*pcActualColors = colorCount;
return S_OK;
}
static HRESULT WINAPI PaletteImpl_IsBlackWhite(IWICPalette *iface, BOOL *pfIsBlackWhite)
@ -175,6 +213,9 @@ HRESULT PaletteImpl_Create(IWICPalette **palette)
This->lpIWICPaletteVtbl = &PaletteImpl_Vtbl;
This->ref = 1;
This->count = 0;
This->colors = NULL;
This->type = WICBitmapPaletteTypeCustom;
*palette = (IWICPalette*)This;