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windowscodecs: Implement WritePixels for BMP frame encoder.

This commit is contained in:
Vincent Povirk 2009-08-11 16:55:59 -05:00 committed by Alexandre Julliard
parent fcb69378a1
commit 4d1d92f87f
1 changed files with 43 additions and 2 deletions
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45
dlls/windowscodecs/bmpencode.c
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@ -59,6 +59,8 @@ typedef struct BmpFrameEncode {
BYTE *bits;
const struct bmp_pixelformat *format;
double xres, yres;
UINT lineswritten;
UINT stride;
} BmpFrameEncode;
static HRESULT WINAPI BmpFrameEncode_QueryInterface(IWICBitmapFrameEncode *iface, REFIID iid,
@ -104,6 +106,7 @@ static ULONG WINAPI BmpFrameEncode_Release(IWICBitmapFrameEncode *iface)
if (ref == 0)
{
if (This->stream) IStream_Release(This->stream);
HeapFree(GetProcessHeap(), 0, This->bits);
HeapFree(GetProcessHeap(), 0, This);
}
@ -195,11 +198,48 @@ static HRESULT WINAPI BmpFrameEncode_SetThumbnail(IWICBitmapFrameEncode *iface,
return WINCODEC_ERR_UNSUPPORTEDOPERATION;
}
static HRESULT BmpFrameEncode_AllocateBits(BmpFrameEncode *This)
{
if (!This->bits)
{
if (!This->initialized || !This->width || !This->height || !This->format)
return WINCODEC_ERR_WRONGSTATE;
This->stride = (((This->width * This->format->bpp)+31)/32)*4;
This->bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->stride * This->height);
if (!This->bits) return E_OUTOFMEMORY;
}
return S_OK;
}
static HRESULT WINAPI BmpFrameEncode_WritePixels(IWICBitmapFrameEncode *iface,
UINT lineCount, UINT cbStride, UINT cbBufferSize, BYTE *pbPixels)
{
FIXME("(%p,%u,%u,%u,%p): stub\n", iface, lineCount, cbStride, cbBufferSize, pbPixels);
return E_NOTIMPL;
BmpFrameEncode *This = (BmpFrameEncode*)iface;
HRESULT hr;
WICRect rc;
TRACE("(%p,%u,%u,%u,%p)\n", iface, lineCount, cbStride, cbBufferSize, pbPixels);
if (!This->initialized || !This->width || !This->height || !This->format)
return WINCODEC_ERR_WRONGSTATE;
hr = BmpFrameEncode_AllocateBits(This);
if (FAILED(hr)) return hr;
rc.X = 0;
rc.Y = 0;
rc.Width = This->width;
rc.Height = lineCount;
hr = copy_pixels(This->format->bpp, pbPixels, This->width, lineCount, cbStride,
&rc, This->stride, This->stride*(This->height-This->lineswritten),
This->bits + This->stride*This->lineswritten);
if (SUCCEEDED(hr))
This->lineswritten += lineCount;
return hr;
}
static HRESULT WINAPI BmpFrameEncode_WriteSource(IWICBitmapFrameEncode *iface,
@ -382,6 +422,7 @@ static HRESULT WINAPI BmpEncoder_CreateNewFrame(IWICBitmapEncoder *iface,
encode->format = NULL;
encode->xres = 0.0;
encode->yres = 0.0;
encode->lineswritten = 0;
*ppIFrameEncode = (IWICBitmapFrameEncode*)encode;
This->frame = (IWICBitmapFrameEncode*)encode;