| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/codec/SkCodec.h" |
| #include "include/codec/SkEncodedOrigin.h" |
| #include "include/core/SkColorType.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkPixmap.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkStream.h" |
| #include "include/core/SkTypes.h" |
| #include "include/core/SkYUVAInfo.h" |
| #include "include/core/SkYUVAPixmaps.h" |
| #include "include/effects/SkColorMatrix.h" |
| #include "include/private/base/SkTo.h" |
| #include "tests/Test.h" |
| #include "tools/Resources.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| static void codec_yuv(skiatest::Reporter* reporter, |
| const char path[], |
| const SkYUVAInfo* expectedInfo) { |
| std::unique_ptr<SkStream> stream(GetResourceAsStream(path)); |
| if (!stream) { |
| return; |
| } |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream))); |
| REPORTER_ASSERT(reporter, codec); |
| if (!codec) { |
| return; |
| } |
| |
| // Test queryYUBAInfo() |
| SkYUVAPixmapInfo yuvaPixmapInfo; |
| |
| static constexpr auto kAllTypes = SkYUVAPixmapInfo::SupportedDataTypes::All(); |
| static constexpr auto kNoTypes = SkYUVAPixmapInfo::SupportedDataTypes(); |
| |
| // SkYUVAInfo param is required to be non-null. |
| bool success = codec->queryYUVAInfo(kAllTypes, nullptr); |
| REPORTER_ASSERT(reporter, !success); |
| // Fails when there is no support for YUVA planes. |
| success = codec->queryYUVAInfo(kNoTypes, &yuvaPixmapInfo); |
| REPORTER_ASSERT(reporter, !success); |
| |
| success = codec->queryYUVAInfo(kAllTypes, &yuvaPixmapInfo); |
| REPORTER_ASSERT(reporter, SkToBool(expectedInfo) == success); |
| if (!success) { |
| return; |
| } |
| REPORTER_ASSERT(reporter, *expectedInfo == yuvaPixmapInfo.yuvaInfo()); |
| |
| int numPlanes = yuvaPixmapInfo.numPlanes(); |
| REPORTER_ASSERT(reporter, numPlanes <= SkYUVAInfo::kMaxPlanes); |
| for (int i = 0; i < numPlanes; ++i) { |
| const SkImageInfo& planeInfo = yuvaPixmapInfo.planeInfo(i); |
| SkColorType planeCT = planeInfo.colorType(); |
| REPORTER_ASSERT(reporter, !planeInfo.isEmpty()); |
| REPORTER_ASSERT(reporter, planeCT != kUnknown_SkColorType); |
| REPORTER_ASSERT(reporter, planeInfo.validRowBytes(yuvaPixmapInfo.rowBytes(i))); |
| // Currently all planes must share a data type, gettable as SkYUVAPixmapInfo::dataType(). |
| auto [numChannels, planeDataType] = SkYUVAPixmapInfo::NumChannelsAndDataType(planeCT); |
| REPORTER_ASSERT(reporter, planeDataType == yuvaPixmapInfo.dataType()); |
| } |
| for (int i = numPlanes; i < SkYUVAInfo::kMaxPlanes; ++i) { |
| const SkImageInfo& planeInfo = yuvaPixmapInfo.planeInfo(i); |
| REPORTER_ASSERT(reporter, planeInfo.dimensions().isEmpty()); |
| REPORTER_ASSERT(reporter, planeInfo.colorType() == kUnknown_SkColorType); |
| REPORTER_ASSERT(reporter, yuvaPixmapInfo.rowBytes(i) == 0); |
| } |
| |
| // Allocate the memory for the YUV decode. |
| auto pixmaps = SkYUVAPixmaps::Allocate(yuvaPixmapInfo); |
| REPORTER_ASSERT(reporter, pixmaps.isValid()); |
| |
| for (int i = 0; i < SkYUVAPixmaps::kMaxPlanes; ++i) { |
| REPORTER_ASSERT(reporter, pixmaps.plane(i).info() == yuvaPixmapInfo.planeInfo(i)); |
| } |
| for (int i = numPlanes; i < SkYUVAInfo::kMaxPlanes; ++i) { |
| REPORTER_ASSERT(reporter, pixmaps.plane(i).rowBytes() == 0); |
| } |
| |
| // Test getYUVAPlanes() |
| REPORTER_ASSERT(reporter, SkCodec::kSuccess == codec->getYUVAPlanes(pixmaps)); |
| } |
| |
| DEF_TEST(Jpeg_YUV_Codec, r) { |
| auto setExpectations = [](SkISize dims, SkYUVAInfo::Subsampling subsampling) { |
| return SkYUVAInfo(dims, |
| SkYUVAInfo::PlaneConfig::kY_U_V, |
| subsampling, |
| kJPEG_Full_SkYUVColorSpace, |
| kTopLeft_SkEncodedOrigin, |
| SkYUVAInfo::Siting::kCentered, |
| SkYUVAInfo::Siting::kCentered); |
| }; |
| |
| SkYUVAInfo expectations = setExpectations({128, 128}, SkYUVAInfo::Subsampling::k420); |
| codec_yuv(r, "images/color_wheel.jpg", &expectations); |
| |
| // H2V2 |
| expectations = setExpectations({512, 512}, SkYUVAInfo::Subsampling::k420); |
| codec_yuv(r, "images/mandrill_512_q075.jpg", &expectations); |
| |
| // H1V1 |
| expectations = setExpectations({512, 512}, SkYUVAInfo::Subsampling::k444); |
| codec_yuv(r, "images/mandrill_h1v1.jpg", &expectations); |
| |
| // H2V1 |
| expectations = setExpectations({512, 512}, SkYUVAInfo::Subsampling::k422); |
| codec_yuv(r, "images/mandrill_h2v1.jpg", &expectations); |
| |
| // Non-power of two dimensions |
| expectations = setExpectations({439, 154}, SkYUVAInfo::Subsampling::k420); |
| codec_yuv(r, "images/cropped_mandrill.jpg", &expectations); |
| |
| expectations = setExpectations({8, 8}, SkYUVAInfo::Subsampling::k420); |
| codec_yuv(r, "images/randPixels.jpg", &expectations); |
| |
| // Progressive images |
| expectations = setExpectations({512, 512}, SkYUVAInfo::Subsampling::k444); |
| codec_yuv(r, "images/brickwork-texture.jpg", &expectations); |
| codec_yuv(r, "images/brickwork_normal-map.jpg", &expectations); |
| |
| // A CMYK encoded image should fail. |
| codec_yuv(r, "images/CMYK.jpg", nullptr); |
| // A grayscale encoded image should fail. |
| codec_yuv(r, "images/grayscale.jpg", nullptr); |
| // A PNG should fail. |
| codec_yuv(r, "images/arrow.png", nullptr); |
| } |
| |
| // Be sure that the two matrices are inverses of each other |
| // (i.e. rgb2yuv and yuv2rgb |
| DEF_TEST(YUVMath, reporter) { |
| const SkYUVColorSpace spaces[] = { |
| kJPEG_SkYUVColorSpace, |
| kRec601_SkYUVColorSpace, |
| kRec709_SkYUVColorSpace, |
| kBT2020_SkYUVColorSpace, |
| kIdentity_SkYUVColorSpace, |
| }; |
| |
| // Not sure what the theoretical precision we can hope for is, so pick a big value that |
| // passes (when I think we're correct). |
| const float tolerance = 1.0f/(1 << 18); |
| |
| for (auto cs : spaces) { |
| SkColorMatrix r2ym = SkColorMatrix::RGBtoYUV(cs), |
| y2rm = SkColorMatrix::YUVtoRGB(cs); |
| r2ym.postConcat(y2rm); |
| |
| float tmp[20]; |
| r2ym.getRowMajor(tmp); |
| for (int i = 0; i < 20; ++i) { |
| float expected = 0; |
| if (i % 6 == 0) { // diagonal |
| expected = 1; |
| } |
| REPORTER_ASSERT(reporter, SkScalarNearlyEqual(tmp[i], expected, tolerance)); |
| } |
| } |
| } |