static HRESULT WINAPI PngFrameEncode_WriteSource(IWICBitmapFrameEncode *iface,
IWICBitmapSource *pIBitmapSource, WICRect *prc)
{
PngEncoder *This = encoder_from_frame(iface);
HRESULT hr;
WICRect rc;
WICPixelFormatGUID guid;
UINT stride;
BYTE *pixeldata;
TRACE("(%p,%p,%p)\n", iface, pIBitmapSource, prc);
if (!This->frame_initialized || !This->width || !This->height)
return WINCODEC_ERR_WRONGSTATE;
if (!This->format)
{
hr = IWICBitmapSource_GetPixelFormat(pIBitmapSource, &guid);
if (FAILED(hr)) return hr;
hr = IWICBitmapFrameEncode_SetPixelFormat(iface, &guid);
if (FAILED(hr)) return hr;
}
hr = IWICBitmapSource_GetPixelFormat(pIBitmapSource, &guid);
if (FAILED(hr)) return hr;
if (memcmp(&guid, This->format->guid, sizeof(GUID)) != 0)
{
/* FIXME: should use WICConvertBitmapSource to convert */
ERR("format %s unsupported\n", debugstr_guid(&guid));
return E_FAIL;
}
if (This->xres == 0.0 || This->yres == 0.0)
{
double xres, yres;
hr = IWICBitmapSource_GetResolution(pIBitmapSource, &xres, &yres);
if (FAILED(hr)) return hr;
hr = IWICBitmapFrameEncode_SetResolution(iface, xres, yres);
if (FAILED(hr)) return hr;
}
if (!prc)
{
UINT width, height;
hr = IWICBitmapSource_GetSize(pIBitmapSource, &width, &height);
if (FAILED(hr)) return hr;
rc.X = 0;
rc.Y = 0;
rc.Width = width;
rc.Height = height;
prc = &rc;
}
if (prc->Width != This->width) return E_INVALIDARG;
stride = (This->format->bpp * This->width + 7)/8;
pixeldata = HeapAlloc(GetProcessHeap(), 0, stride * prc->Height);
if (!pixeldata) return E_OUTOFMEMORY;
hr = IWICBitmapSource_CopyPixels(pIBitmapSource, prc, stride,
stride*prc->Height, pixeldata);
if (SUCCEEDED(hr))
{
hr = IWICBitmapFrameEncode_WritePixels(iface, prc->Height, stride,
stride*prc->Height, pixeldata);
}
HeapFree(GetProcessHeap(), 0, pixeldata);
return hr;
}
HRESULT WINAPI IWICBitmapFrameEncode_SetResolution_Proxy_W(IWICBitmapFrameEncode *iface,
double dpiX, double dpiY)
{
return IWICBitmapFrameEncode_SetResolution(iface, dpiX, dpiY);
}
