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d3dx10: Factor out image format conversion function.
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00c8117a72
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@ -766,11 +766,53 @@ void init_load_info(const D3DX10_IMAGE_LOAD_INFO *load_info, D3DX10_IMAGE_LOAD_I
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out->pSrcInfo = NULL;
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}
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static HRESULT convert_image(IWICImagingFactory *factory, IWICBitmapFrameDecode *frame,
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const GUID *dst_format, unsigned int stride, unsigned int frame_size, BYTE *buffer)
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{
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IWICFormatConverter *converter;
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BOOL can_convert;
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GUID src_format;
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HRESULT hr;
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if (FAILED(hr = IWICBitmapFrameDecode_GetPixelFormat(frame, &src_format)))
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return hr;
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if (IsEqualGUID(&src_format, dst_format))
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{
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if (FAILED(hr = IWICBitmapFrameDecode_CopyPixels(frame, NULL, stride, frame_size, buffer)))
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return hr;
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return S_OK;
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}
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if (FAILED(hr = IWICImagingFactory_CreateFormatConverter(factory, &converter)))
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return hr;
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if (FAILED(hr = IWICFormatConverter_CanConvert(converter, &src_format, dst_format, &can_convert)))
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{
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IWICFormatConverter_Release(converter);
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return hr;
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}
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if (!can_convert)
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{
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WARN("Format converting %s to %s is not supported by WIC.\n",
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debugstr_guid(&src_format), debugstr_guid(dst_format));
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IWICFormatConverter_Release(converter);
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return E_NOTIMPL;
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}
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if (FAILED(hr = IWICFormatConverter_Initialize(converter, (IWICBitmapSource *)frame, dst_format,
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WICBitmapDitherTypeErrorDiffusion, 0, 0, WICBitmapPaletteTypeCustom)))
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{
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IWICFormatConverter_Release(converter);
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return hr;
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}
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hr = IWICFormatConverter_CopyPixels(converter, NULL, stride, frame_size, buffer);
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IWICFormatConverter_Release(converter);
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return hr;
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}
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HRESULT load_texture_data(const void *data, SIZE_T size, D3DX10_IMAGE_LOAD_INFO *load_info,
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D3D10_SUBRESOURCE_DATA **resource_data)
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{
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unsigned int frame_count, width, height, stride, frame_size;
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IWICFormatConverter *converter = NULL;
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IWICDdsFrameDecode *dds_frame = NULL;
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IWICBitmapFrameDecode *frame = NULL;
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IWICImagingFactory *factory = NULL;
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@ -779,8 +821,6 @@ HRESULT load_texture_data(const void *data, SIZE_T size, D3DX10_IMAGE_LOAD_INFO
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D3DX10_IMAGE_INFO img_info;
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IWICStream *stream = NULL;
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const GUID *dst_format;
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BOOL can_convert;
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GUID src_format;
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HRESULT hr;
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if (load_info->Width != D3DX10_DEFAULT)
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@ -835,8 +875,6 @@ HRESULT load_texture_data(const void *data, SIZE_T size, D3DX10_IMAGE_LOAD_INFO
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goto end;
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if (FAILED(hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame)))
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goto end;
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if (FAILED(hr = IWICBitmapFrameDecode_GetPixelFormat(frame, &src_format)))
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goto end;
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width = img_info.Width;
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height = img_info.Height;
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@ -870,30 +908,8 @@ HRESULT load_texture_data(const void *data, SIZE_T size, D3DX10_IMAGE_LOAD_INFO
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FIXME("Unsupported DXGI format %#x.\n", img_info.Format);
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goto end;
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}
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if (IsEqualGUID(&src_format, dst_format))
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{
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if (FAILED(hr = IWICBitmapFrameDecode_CopyPixels(frame, NULL, stride, frame_size, buffer)))
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goto end;
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}
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else
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{
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if (FAILED(hr = IWICImagingFactory_CreateFormatConverter(factory, &converter)))
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goto end;
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if (FAILED(hr = IWICFormatConverter_CanConvert(converter, &src_format, dst_format, &can_convert)))
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goto end;
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if (!can_convert)
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{
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WARN("Format converting %s to %s is not supported by WIC.\n",
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debugstr_guid(&src_format), debugstr_guid(dst_format));
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goto end;
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}
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if (FAILED(hr = IWICFormatConverter_Initialize(converter, (IWICBitmapSource *)frame, dst_format,
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WICBitmapDitherTypeErrorDiffusion, 0, 0, WICBitmapPaletteTypeCustom)))
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goto end;
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if (FAILED(hr = IWICFormatConverter_CopyPixels(converter, NULL, stride, frame_size, buffer)))
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goto end;
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}
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if (FAILED(hr = convert_image(factory, frame, dst_format, stride, frame_size, buffer)))
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goto end;
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}
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load_info->Width = width;
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@ -913,8 +929,6 @@ HRESULT load_texture_data(const void *data, SIZE_T size, D3DX10_IMAGE_LOAD_INFO
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hr = S_OK;
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end:
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if (converter)
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IWICFormatConverter_Release(converter);
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if (dds_frame)
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IWICDdsFrameDecode_Release(dds_frame);
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free(res_data);
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