89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
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/*
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* Copyright 2019 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm/gm.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkYUVAIndex.h"
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#include "include/core/SkYUVASizeInfo.h"
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#include "src/core/SkCachedData.h"
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#include "src/image/SkImage_Base.h"
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#include "tools/Resources.h"
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#include "tools/ToolUtils.h"
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// Modeled on the layout test css3/blending/background-blend-mode-image-image.html to reproduce
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// skbug.com/9619
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DEF_SIMPLE_GM_CAN_FAIL(ducky_yuv_blend, canvas, errorMsg, 560, 1130) {
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sk_sp<SkImage> duckyBG = GetResourceAsImage("ducky.png");
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sk_sp<SkImage> duckyFG[2] = {GetResourceAsImage("ducky.jpg"), nullptr};
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if (!duckyFG[0] || !duckyBG) {
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*errorMsg = "Image(s) failed to load.";
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return skiagm::DrawResult::kFail;
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}
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// If we're on the GPU we do a second round of draws where the source image is YUV planes.
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// Otherwise we just draw the original again,
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if (auto* context = canvas->getGrContext()) {
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SkYUVASizeInfo info;
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SkYUVAIndex indices[4];
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SkYUVColorSpace yuvColorSpace;
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const void* planes[4];
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auto data = as_IB(duckyFG[0])->getPlanes(&info, indices, &yuvColorSpace, planes);
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SkPixmap pixmaps[4];
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for (int i = 0; i < 4; ++i) {
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if (indices[i].fIndex >= 0) {
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pixmaps[i].reset(
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SkImageInfo::MakeA8(info.fSizes[i]), planes[i], info.fWidthBytes[i]);
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}
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}
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duckyFG[1] = SkImage::MakeFromYUVAPixmaps(context,
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yuvColorSpace,
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pixmaps,
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indices,
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duckyFG[0]->dimensions(),
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kTopLeft_GrSurfaceOrigin,
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true);
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} else {
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duckyFG[1] = duckyFG[0];
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}
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static constexpr int kNumPerRow = 4;
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static constexpr int kPad = 10;
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static constexpr auto kDstRect = SkRect::MakeWH(130, 130);
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int rowCnt = 0;
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canvas->translate(kPad, kPad);
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canvas->save();
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auto newRow = [&] {
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canvas->restore();
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canvas->translate(0, kDstRect.height() + kPad);
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canvas->save();
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rowCnt = 0;
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};
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ToolUtils::draw_checkerboard(
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canvas, SK_ColorDKGRAY, SK_ColorLTGRAY, (kDstRect.height() + kPad)/5);
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for (auto& fg : duckyFG) {
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for (int bm = static_cast<int>(SkBlendMode::kLastCoeffMode) + 1;
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bm < static_cast<int>(SkBlendMode::kLastMode);
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++bm) {
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auto mode = static_cast<SkBlendMode>(bm);
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SkPaint paint;
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paint.setFilterQuality(kMedium_SkFilterQuality);
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canvas->drawImageRect(duckyBG, kDstRect, &paint);
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paint.setBlendMode(mode);
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canvas->drawImageRect(fg, kDstRect, &paint);
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canvas->translate(kDstRect.width() + kPad, 0);
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if (++rowCnt == kNumPerRow) {
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newRow();
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}
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}
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// Force a new row between the two foreground images
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newRow();
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}
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canvas->restore();
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return skiagm::DrawResult::kOk;
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}
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