4  * Use of this source code is governed by a BSD-style license that can be
36               "PNGCodecGM. Directories are scanned non-recursively. All files are assumed to be "
40               "One of \"get-all-pixels\", \"incremental\" or \"zero-init\".");
43               "One of \"force-grayscale\", "
44               "\"force-nonnative-premul-color\" or \"get-from-canvas\".");
142 // This GM implements the PNG-related behaviors found in DM's CodecSrc class. It takes a single
143 // image as an argument and applies the same logic as CodecSrc.
149     // Based on CodecSrc::Mode.
157     // Based on CodecSrc::DstColorType.
189     // Based on DM's CodecSrc::CodecSrc().
209                 {"source_type", "image"},  in getGoldKeys()
217     // Based on CodecSrc::name().
224     // Based on CodecSrc::size().
231         return decodeResult.codec->dimensions();  in getISize()
234     // Based on CodecSrc::draw().
244         SkImageInfo decodeInfo = codec->getInfo();  in onDraw()
246                                                                 canvas->imageInfo().colorType());  in onDraw()
251         SkISize size = codec->dimensions();  in onDraw()
280                 switch (codec->getPixels(decodeInfo, pixels.get(), rowBytes, &options)) {  in onDraw()
300                     codec->startIncrementalDecode(decodeInfo, dst, rowBytes, &options)) {  in onDraw()
302                     auto result = codec->incrementalDecode(&rowsDecoded);  in onDraw()
304                         codec->fillIncompleteImage(decodeInfo,  in onDraw()
327     // Checks that the canvas color type, destination color and alpha types and input image
329     // image.
331     // Based on DM's get_decode_info() function.
343                 *decodeInfo = decodeInfo->makeColorType(kGray_8_SkColorType);  in validateCanvasColorTypeAndGetDecodeInfo()
355                 *decodeInfo = decodeInfo->makeColorType(kBGRA_8888_SkColorType);  in validateCanvasColorTypeAndGetDecodeInfo()
357                 *decodeInfo = decodeInfo->makeColorType(kRGBA_8888_SkColorType);  in validateCanvasColorTypeAndGetDecodeInfo()
363                     kOpaque_SkAlphaType != decodeInfo->alphaType()) {  in validateCanvasColorTypeAndGetDecodeInfo()
365                             "image \"%s\" has alpha type %s; this is incompatible with with "  in validateCanvasColorTypeAndGetDecodeInfo()
368                             sk_alpha_type_to_str(decodeInfo->alphaType()),  in validateCanvasColorTypeAndGetDecodeInfo()
372                 *decodeInfo = decodeInfo->makeColorType(canvasColorType);  in validateCanvasColorTypeAndGetDecodeInfo()
379         *decodeInfo = decodeInfo->makeAlphaType(fDstAlphaType);  in validateCanvasColorTypeAndGetDecodeInfo()
383     // Based on DM's draw_to_canvas() function.
394         canvas->drawImage(bitmap.asImage(), left, top);  in drawToCanvas()
397     // Allows us to test decodes to non-native 8888.
399     // Based on DM's swap_rb_if_necessary function.
418 // Registers GMs with zero or more PNGCodecGM instances for the given image. Returns a non-empty,
419 // human-friendly error message in the case of errors.
421 // Based on DM's push_codec_srcs() function. It only covers "simple" codecs (lines 740-834).
426 //  - AndroidCodecSrc
427 //  - BRDSrc
428 //  - ImageGenSrc
441         decodeResult.codec->getInfo().colorType() != kGray_8_SkColorType) {  in registerGMsForImage()
443                        "image \"%s\" has color type %s; this is incompatible with the given "  in registerGMsForImage()
444                        "dstColorType argument: %s (expected image color type: %s)",  in registerGMsForImage()
446                        sk_color_type_to_str(decodeResult.codec->getInfo().colorType()),  in registerGMsForImage()
453         decodeResult.codec->getInfo().alphaType() == kOpaque_SkAlphaType) {  in registerGMsForImage()
455                        "image \"%s\" has alpha type %s; this is incompatible with the given "  in registerGMsForImage()
467 // Returns a non-empty message in the case of errors.
472             {SkString("get-all-pixels"), PNGCodecGM::DecodeMode::kGetAllPixels},  in parse_and_validate_flags()
474             {SkString("zero-init"), PNGCodecGM::DecodeMode::kZeroInit},  in parse_and_validate_flags()
477                 "--pngCodecDecodeMode", decodeModeValues, decodeMode);  in parse_and_validate_flags()
483             {SkString("get-from-canvas"), PNGCodecGM::DstColorType::kGetFromCanvas},  in parse_and_validate_flags()
484             {SkString("force-grayscale"), PNGCodecGM::DstColorType::kForceGrayscale},  in parse_and_validate_flags()
485             {SkString("force-nonnative-premul-color"),  in parse_and_validate_flags()
489                 "--pngCodecDstColorType", dstColorTypeValues, dstColorType);  in parse_and_validate_flags()
499                 "--pngCodecDstAlphaType", dstAlphaTypeValues, dstAlphaType);  in parse_and_validate_flags()
507 // Registers one PNGCodecGM instance for each image passed via the --pngCodecGMImages flag, which
508 // can take files and directories. Directories are scanned non-recursively.
510 // Based on DM's gather_srcs() function.
512 DEF_GM_REGISTERER_FN([]() -> std::string {  in __anonb277b3f40102()
528     // Register one GM per image.  in __anonb277b3f40102()
529     for (const SkString& image : images) {  in __anonb277b3f40102()  local
531                     registerGMsForImage(image.c_str(), decodeMode, dstColorType, dstAlphaType);  in __anonb277b3f40102()