static void test_default_converter(void) { BitmapTestSrc *src_obj; IWICFormatConverter *converter; BOOL can_convert = TRUE; HRESULT hr; CreateTestBitmap(&testdata_32bppBGRA, &src_obj); hr = CoCreateInstance(&CLSID_WICDefaultFormatConverter, NULL, CLSCTX_INPROC_SERVER, &IID_IWICFormatConverter, (void**)&converter); ok(SUCCEEDED(hr), "CoCreateInstance failed, hr=%x\n", hr); if (SUCCEEDED(hr)) { hr = IWICFormatConverter_CanConvert(converter, &GUID_WICPixelFormat32bppBGRA, &GUID_WICPixelFormat32bppBGR, &can_convert); ok(SUCCEEDED(hr), "CanConvert returned %x\n", hr); ok(can_convert, "expected TRUE, got %i\n", can_convert); hr = IWICFormatConverter_Initialize(converter, &src_obj->IWICBitmapSource_iface, &GUID_WICPixelFormat32bppBGR, WICBitmapDitherTypeNone, NULL, 0.0, WICBitmapPaletteTypeCustom); ok(SUCCEEDED(hr), "Initialize returned %x\n", hr); if (SUCCEEDED(hr)) compare_bitmap_data(&testdata_32bppBGR, (IWICBitmapSource*)converter, "default converter"); IWICFormatConverter_Release(converter); } DeleteTestBitmap(src_obj); }
int ReadPictureWithWIC(const char* const filename, WebPPicture* const pic, int keep_alpha, Metadata* const metadata) { // From Microsoft SDK 6.0a -- ks.h // Define a local copy to avoid link errors under mingw. WEBP_DEFINE_GUID(GUID_NULL_, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); static const WICFormatImporter kAlphaFormatImporters[] = { { &GUID_WICPixelFormat32bppBGRA_, 4, WebPPictureImportBGRA }, { &GUID_WICPixelFormat32bppRGBA_, 4, WebPPictureImportRGBA }, { NULL, 0, NULL }, }; static const WICFormatImporter kNonAlphaFormatImporters[] = { { &GUID_WICPixelFormat24bppBGR_, 3, WebPPictureImportBGR }, { &GUID_WICPixelFormat24bppRGB_, 3, WebPPictureImportRGB }, { NULL, 0, NULL }, }; HRESULT hr = S_OK; IWICBitmapFrameDecode* frame = NULL; IWICFormatConverter* converter = NULL; IWICImagingFactory* factory = NULL; IWICBitmapDecoder* decoder = NULL; IStream* stream = NULL; UINT frame_count = 0; UINT width = 0, height = 0; BYTE* rgb = NULL; WICPixelFormatGUID src_pixel_format = GUID_WICPixelFormatUndefined; const WICFormatImporter* importer = NULL; GUID src_container_format = GUID_NULL_; static const GUID* kAlphaContainers[] = { &GUID_ContainerFormatBmp, &GUID_ContainerFormatPng, &GUID_ContainerFormatTiff, NULL }; int has_alpha = 0; int64_t stride; IFS(CoInitialize(NULL)); IFS(CoCreateInstance(MAKE_REFGUID(CLSID_WICImagingFactory), NULL, CLSCTX_INPROC_SERVER, MAKE_REFGUID(IID_IWICImagingFactory), (LPVOID*)&factory)); if (hr == REGDB_E_CLASSNOTREG) { fprintf(stderr, "Couldn't access Windows Imaging Component (are you running " "Windows XP SP3 or newer?). Most formats not available. " "Use -s for the available YUV input.\n"); } // Prepare for image decoding. IFS(OpenInputStream(filename, &stream)); IFS(IWICImagingFactory_CreateDecoderFromStream( factory, stream, NULL, WICDecodeMetadataCacheOnDemand, &decoder)); IFS(IWICBitmapDecoder_GetFrameCount(decoder, &frame_count)); if (SUCCEEDED(hr) && frame_count == 0) { fprintf(stderr, "No frame found in input file.\n"); hr = E_FAIL; } IFS(IWICBitmapDecoder_GetFrame(decoder, 0, &frame)); IFS(IWICBitmapFrameDecode_GetPixelFormat(frame, &src_pixel_format)); IFS(IWICBitmapDecoder_GetContainerFormat(decoder, &src_container_format)); if (SUCCEEDED(hr) && keep_alpha) { const GUID** guid; for (guid = kAlphaContainers; *guid != NULL; ++guid) { if (IsEqualGUID(MAKE_REFGUID(src_container_format), MAKE_REFGUID(**guid))) { has_alpha = HasAlpha(factory, decoder, frame, src_pixel_format); break; } } } // Prepare for pixel format conversion (if necessary). IFS(IWICImagingFactory_CreateFormatConverter(factory, &converter)); for (importer = has_alpha ? kAlphaFormatImporters : kNonAlphaFormatImporters; hr == S_OK && importer->import != NULL; ++importer) { BOOL can_convert; const HRESULT cchr = IWICFormatConverter_CanConvert( converter, MAKE_REFGUID(src_pixel_format), MAKE_REFGUID(*importer->pixel_format), &can_convert); if (SUCCEEDED(cchr) && can_convert) break; } if (importer->import == NULL) hr = E_FAIL; IFS(IWICFormatConverter_Initialize(converter, (IWICBitmapSource*)frame, importer->pixel_format, WICBitmapDitherTypeNone, NULL, 0.0, WICBitmapPaletteTypeCustom)); // Decode. IFS(IWICFormatConverter_GetSize(converter, &width, &height)); stride = (int64_t)importer->bytes_per_pixel * width * sizeof(*rgb); if (stride != (int)stride || !ImgIoUtilCheckSizeArgumentsOverflow(stride, height)) { hr = E_FAIL; } if (SUCCEEDED(hr)) { rgb = (BYTE*)malloc((size_t)stride * height); if (rgb == NULL) hr = E_OUTOFMEMORY; } IFS(IWICFormatConverter_CopyPixels(converter, NULL, (UINT)stride, (UINT)stride * height, rgb)); // WebP conversion. if (SUCCEEDED(hr)) { int ok; pic->width = width; pic->height = height; pic->use_argb = 1; // For WIC, we always force to argb ok = importer->import(pic, rgb, (int)stride); if (!ok) hr = E_FAIL; } if (SUCCEEDED(hr)) { if (metadata != NULL) { hr = ExtractMetadata(factory, frame, metadata); if (FAILED(hr)) { fprintf(stderr, "Error extracting image metadata using WIC!\n"); } } } // Cleanup. if (converter != NULL) IUnknown_Release(converter); if (frame != NULL) IUnknown_Release(frame); if (decoder != NULL) IUnknown_Release(decoder); if (factory != NULL) IUnknown_Release(factory); if (stream != NULL) IUnknown_Release(stream); free(rgb); return SUCCEEDED(hr); }