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windowscodecs: Implement GetFrameCount and GetFrame for the ICO decoder.

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This commit is contained in:
Vincent Povirk 2009-08-20 10:06:01 -05:00 committed by Alexandre Julliard
parent dd5c5b8277
commit c49b36ea31
1 changed files with 173 additions and 4 deletions
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177
dlls/windowscodecs/icoformat.c
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@ -63,6 +63,133 @@ typedef struct {
ICONHEADER header;
} IcoDecoder;
typedef struct {
const IWICBitmapFrameDecodeVtbl *lpVtbl;
LONG ref;
ICONDIRENTRY entry;
IcoDecoder *parent;
} IcoFrameDecode;
static HRESULT WINAPI IcoFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
void **ppv)
{
IcoFrameDecode *This = (IcoFrameDecode*)iface;
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICBitmapSource, iid) ||
IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
{
*ppv = This;
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI IcoFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
{
IcoFrameDecode *This = (IcoFrameDecode*)iface;
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI IcoFrameDecode_Release(IWICBitmapFrameDecode *iface)
{
IcoFrameDecode *This = (IcoFrameDecode*)iface;
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
IUnknown_Release((IUnknown*)This->parent);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI IcoFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
UINT *puiWidth, UINT *puiHeight)
{
FIXME("(%p,%p,%p): stub\n", iface, puiWidth, puiHeight);
return E_NOTIMPL;
}
static HRESULT WINAPI IcoFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
WICPixelFormatGUID *pPixelFormat)
{
memcpy(pPixelFormat, &GUID_WICPixelFormat32bppBGRA, sizeof(GUID));
return S_OK;
}
static HRESULT WINAPI IcoFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
double *pDpiX, double *pDpiY)
{
FIXME("(%p,%p,%p): stub\n", iface, pDpiX, pDpiY);
return E_NOTIMPL;
}
static HRESULT WINAPI IcoFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
IWICPalette *pIPalette)
{
TRACE("(%p,%p)\n", iface, pIPalette);
return WINCODEC_ERR_PALETTEUNAVAILABLE;
}
static HRESULT WINAPI IcoFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
{
FIXME("(%p,%p,%u,%u,%p): stub\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
return E_NOTIMPL;
}
static HRESULT WINAPI IcoFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
IWICMetadataQueryReader **ppIMetadataQueryReader)
{
TRACE("(%p,%p)\n", iface, ppIMetadataQueryReader);
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT WINAPI IcoFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
{
TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT WINAPI IcoFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
IWICBitmapSource **ppIThumbnail)
{
TRACE("(%p,%p)\n", iface, ppIThumbnail);
return WINCODEC_ERR_CODECNOTHUMBNAIL;
}
static const IWICBitmapFrameDecodeVtbl IcoFrameDecode_Vtbl = {
IcoFrameDecode_QueryInterface,
IcoFrameDecode_AddRef,
IcoFrameDecode_Release,
IcoFrameDecode_GetSize,
IcoFrameDecode_GetPixelFormat,
IcoFrameDecode_GetResolution,
IcoFrameDecode_CopyPalette,
IcoFrameDecode_CopyPixels,
IcoFrameDecode_GetMetadataQueryReader,
IcoFrameDecode_GetColorContexts,
IcoFrameDecode_GetThumbnail
};
static HRESULT WINAPI IcoDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
void **ppv)
{
@ -198,15 +325,57 @@ static HRESULT WINAPI IcoDecoder_GetThumbnail(IWICBitmapDecoder *iface,
static HRESULT WINAPI IcoDecoder_GetFrameCount(IWICBitmapDecoder *iface,
UINT *pCount)
{
FIXME("(%p,%p): stub\n", iface, pCount);
return E_NOTIMPL;
IcoDecoder *This = (IcoDecoder*)iface;
TRACE("(%p,%p)\n", iface, pCount);
if (!This->initialized) return WINCODEC_ERR_NOTINITIALIZED;
*pCount = This->header.idCount;
TRACE("<-- %u\n", *pCount);
return S_OK;
}
static HRESULT WINAPI IcoDecoder_GetFrame(IWICBitmapDecoder *iface,
UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
{
FIXME("(%p,%u,%p): stub\n", iface, index, ppIBitmapFrame);
return E_NOTIMPL;
IcoDecoder *This = (IcoDecoder*)iface;
IcoFrameDecode *result;
LARGE_INTEGER seek;
HRESULT hr;
ULONG bytesread;
TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
if (!This->initialized) return WINCODEC_ERR_NOTINITIALIZED;
if (This->header.idCount < index) return E_INVALIDARG;
result = HeapAlloc(GetProcessHeap(), 0, sizeof(IcoFrameDecode));
if (!result) return E_OUTOFMEMORY;
result->lpVtbl = &IcoFrameDecode_Vtbl;
result->ref = 1;
result->parent = This;
/* read the icon entry */
seek.QuadPart = sizeof(ICONHEADER) + sizeof(ICONDIRENTRY) * index;
hr = IStream_Seek(This->stream, seek, STREAM_SEEK_SET, 0);
if (FAILED(hr)) goto fail;
hr = IStream_Read(This->stream, &result->entry, sizeof(ICONDIRENTRY), &bytesread);
if (FAILED(hr) || bytesread != sizeof(ICONDIRENTRY)) goto fail;
IWICBitmapDecoder_AddRef(iface);
*ppIBitmapFrame = (IWICBitmapFrameDecode*)result;
return S_OK;
fail:
HeapFree(GetProcessHeap(), 0, result);
if (SUCCEEDED(hr)) hr = E_FAIL;
TRACE("<-- %x\n", hr);
return hr;
}
static const IWICBitmapDecoderVtbl IcoDecoder_Vtbl = {