| /* |
| * 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 "modules/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); |
| 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, |
| SkFilterMode::kNearest)); |
| |
| { |
| // 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; |
| |
| using INHERITED = GM; |
| }; |
| |
| DEF_GM(return new PictureShaderCacheGM(100);) |