/* * Copyright 2017 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/SkBitmap.h" #include "include/core/SkCanvas.h" #include "include/core/SkColor.h" #include "include/core/SkColorSpace.h" #include "include/core/SkImageInfo.h" #include "include/core/SkPaint.h" #include "include/core/SkPicture.h" #include "include/core/SkPictureRecorder.h" #include "include/core/SkRect.h" #include "include/core/SkRefCnt.h" #include "include/core/SkScalar.h" #include "include/core/SkShader.h" #include "include/core/SkSize.h" #include "include/core/SkString.h" #include "include/core/SkSurface.h" #include "include/core/SkTileMode.h" #include "include/third_party/skcms/skcms.h" #include <utility> class PictureShaderCacheGM : public skiagm::GM { public: PictureShaderCacheGM(SkScalar tileSize) : fTileSize(tileSize) { } protected: void drawTile(SkCanvas* canvas) { SkPaint paint; paint.setColor(SK_ColorGREEN); paint.setStyle(SkPaint::kFill_Style); paint.setAntiAlias(true); canvas->drawCircle(fTileSize / 4, fTileSize / 4, fTileSize / 4, paint); canvas->drawRect(SkRect::MakeXYWH(fTileSize / 2, fTileSize / 2, fTileSize / 2, fTileSize / 2), paint); paint.setColor(SK_ColorRED); canvas->drawLine(fTileSize / 2, fTileSize * 1 / 3, fTileSize / 2, fTileSize * 2 / 3, paint); canvas->drawLine(fTileSize * 1 / 3, fTileSize / 2, fTileSize * 2 / 3, fTileSize / 2, paint); } void onOnceBeforeDraw() override { SkPictureRecorder recorder; SkCanvas* pictureCanvas = recorder.beginRecording(fTileSize, fTileSize, nullptr, 0); this->drawTile(pictureCanvas); fPicture = recorder.finishRecordingAsPicture(); } SkString onShortName() override { return SkString("pictureshadercache"); } SkISize onISize() override { return SkISize::Make(100, 100); } void onDraw(SkCanvas* canvas) override { SkPaint paint; paint.setShader(fPicture->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat)); { // Render in a funny color space that converts green to yellow. skcms_Matrix3x3 greenToYellow = {{ { 1, 1, 0 }, { 0, 1, 0 }, { 0, 0, 1 }, }}; sk_sp<SkColorSpace> gty = SkColorSpace::MakeRGB(SkNamedTransferFn::kSRGB, greenToYellow); SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100, std::move(gty)); sk_sp<SkSurface> surface(SkSurface::MakeRaster(info)); surface->getCanvas()->drawRect(SkRect::MakeWH(fTileSize, fTileSize), paint); } // When we draw to the canvas, we should see green because we should *not* reuse the // cached picture shader. canvas->drawRect(SkRect::MakeWH(fTileSize, fTileSize), paint); } private: SkScalar fTileSize; sk_sp<SkPicture> fPicture; SkBitmap fBitmap; typedef GM INHERITED; }; DEF_GM(return new PictureShaderCacheGM(100);)