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windowscodecs: Implement Commit for BMP frame encoder.

This commit is contained in:
Vincent Povirk 2009-08-11 17:17:31 -05:00 committed by Alexandre Julliard
parent 4d1d92f87f
commit 7cc0fd4fde
1 changed files with 53 additions and 2 deletions
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55
dlls/windowscodecs/bmpencode.c
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@ -61,6 +61,7 @@ typedef struct BmpFrameEncode {
double xres, yres;
UINT lineswritten;
UINT stride;
BOOL committed;
} BmpFrameEncode;
static HRESULT WINAPI BmpFrameEncode_QueryInterface(IWICBitmapFrameEncode *iface, REFIID iid,
@ -251,8 +252,57 @@ static HRESULT WINAPI BmpFrameEncode_WriteSource(IWICBitmapFrameEncode *iface,
static HRESULT WINAPI BmpFrameEncode_Commit(IWICBitmapFrameEncode *iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
BmpFrameEncode *This = (BmpFrameEncode*)iface;
BITMAPFILEHEADER bfh;
BITMAPV5HEADER bih;
UINT info_size;
LARGE_INTEGER pos;
ULONG byteswritten;
HRESULT hr;
TRACE("(%p)\n", iface);
if (!This->bits || This->committed || This->height != This->lineswritten)
return WINCODEC_ERR_WRONGSTATE;
bfh.bfType = 0x4d42; /* "BM" */
bfh.bfReserved1 = 0;
bfh.bfReserved2 = 0;
bih.bV5Size = info_size = sizeof(BITMAPINFOHEADER);
bih.bV5Width = This->width;
bih.bV5Height = -This->height; /* top-down bitmap */
bih.bV5Planes = 1;
bih.bV5BitCount = This->format->bpp;
bih.bV5Compression = This->format->compression;
bih.bV5SizeImage = This->stride*This->height;
bih.bV5XPelsPerMeter = (This->xres-0.0127) / 0.0254;
bih.bV5YPelsPerMeter = (This->yres-0.0127) / 0.0254;
bih.bV5ClrUsed = 0;
bih.bV5ClrImportant = 0;
bfh.bfSize = sizeof(BITMAPFILEHEADER) + info_size + bih.bV5SizeImage;
bfh.bfOffBits = sizeof(BITMAPFILEHEADER) + info_size;
pos.QuadPart = 0;
hr = IStream_Seek(This->stream, pos, STREAM_SEEK_SET, NULL);\
if (FAILED(hr)) return hr;
hr = IStream_Write(This->stream, &bfh, sizeof(BITMAPFILEHEADER), &byteswritten);
if (FAILED(hr)) return hr;
if (byteswritten != sizeof(BITMAPFILEHEADER)) return E_FAIL;
hr = IStream_Write(This->stream, &bih, info_size, &byteswritten);
if (FAILED(hr)) return hr;
if (byteswritten != info_size) return E_FAIL;
hr = IStream_Write(This->stream, This->bits, bih.bV5SizeImage, &byteswritten);
if (FAILED(hr)) return hr;
if (byteswritten != bih.bV5SizeImage) return E_FAIL;
This->committed = TRUE;
return S_OK;
}
static HRESULT WINAPI BmpFrameEncode_GetMetadataQueryWriter(IWICBitmapFrameEncode *iface,
@ -423,6 +473,7 @@ static HRESULT WINAPI BmpEncoder_CreateNewFrame(IWICBitmapEncoder *iface,
encode->xres = 0.0;
encode->yres = 0.0;
encode->lineswritten = 0;
encode->committed = FALSE;
*ppIFrameEncode = (IWICBitmapFrameEncode*)encode;
This->frame = (IWICBitmapFrameEncode*)encode;