/* * Copyright 2019 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "gm/gm.h" #include "include/core/SkCanvas.h" #include "include/core/SkPaint.h" #include "include/gpu/GrRecordingContext.h" #include "src/core/SkCachedData.h" #include "src/image/SkImage_Base.h" #include "tools/Resources.h" #include "tools/ToolUtils.h" #include "tools/gpu/YUVUtils.h" // Modeled on the layout test css3/blending/background-blend-mode-image-image.html to reproduce // skbug.com/9619 DEF_SIMPLE_GM_CAN_FAIL(ducky_yuv_blend, canvas, errorMsg, 560, 1130) { sk_sp<SkImage> duckyBG = GetResourceAsImage("images/ducky.png"); sk_sp<SkImage> duckyFG[2] = {GetResourceAsImage("images/ducky.jpg"), nullptr}; if (!duckyFG[0] || !duckyBG) { *errorMsg = "Image(s) failed to load."; return skiagm::DrawResult::kFail; } // If we're on the GPU we do a second round of draws where the source image is YUV planes. // Otherwise we just draw the original again, if (auto* rContext = canvas->recordingContext(); rContext && !rContext->abandoned()) { auto lazyYUV = sk_gpu_test::LazyYUVImage::Make(GetResourceAsData("images/ducky.jpg"), GrMipmapped::kYes); if (lazyYUV) { duckyFG[1] = lazyYUV->refImage(rContext, sk_gpu_test::LazyYUVImage::Type::kFromPixmaps); } if (!duckyFG[1]) { return skiagm::DrawResult::kFail; } } else { duckyFG[1] = duckyFG[0]; } static constexpr int kNumPerRow = 4; static constexpr int kPad = 10; static constexpr auto kDstRect = SkRect::MakeWH(130, 130); int rowCnt = 0; canvas->translate(kPad, kPad); canvas->save(); auto newRow = [&] { canvas->restore(); canvas->translate(0, kDstRect.height() + kPad); canvas->save(); rowCnt = 0; }; SkSamplingOptions sampling(SkFilterMode::kLinear, SkMipmapMode::kNearest); ToolUtils::draw_checkerboard( canvas, SK_ColorDKGRAY, SK_ColorLTGRAY, (kDstRect.height() + kPad)/5); for (auto& fg : duckyFG) { for (int bm = static_cast<int>(SkBlendMode::kLastCoeffMode) + 1; bm < static_cast<int>(SkBlendMode::kLastMode); ++bm) { canvas->drawImageRect(duckyBG, kDstRect, sampling, nullptr); SkPaint paint; paint.setBlendMode(static_cast<SkBlendMode>(bm)); canvas->drawImageRect(fg, kDstRect, sampling, &paint); canvas->translate(kDstRect.width() + kPad, 0); if (++rowCnt == kNumPerRow) { newRow(); } } // Force a new row between the two foreground images newRow(); } canvas->restore(); return skiagm::DrawResult::kOk; }