| // Copyright 2019 Google LLC. |
| // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. |
| #include "tools/fiddle/examples.h" |
| // HASH=6de6f3ef699a72ff26da1b26b23a3316 |
| REG_FIDDLE(Surface_characterize, 256, 64, false, 0) { |
| void draw(SkCanvas* canvas) { |
| SkFont font(nullptr, 32); |
| SkPaint paint; |
| auto context = canvas->recordingContext(); |
| if (!context) { |
| canvas->drawString("GPU only!", 20, 40, font, paint); |
| return; |
| } |
| sk_sp<SkSurface> gpuSurface = SkSurface::MakeRenderTarget( |
| context, skgpu::Budgeted::kYes, SkImageInfo::MakeN32Premul(64, 64)); |
| SkSurfaceCharacterization characterization; |
| if (!gpuSurface->characterize(&characterization)) { |
| canvas->drawString("characterization unsupported", 20, 40, font, paint); |
| return; |
| } |
| // start of threadable work |
| SkDeferredDisplayListRecorder recorder(characterization); |
| SkCanvas* subCanvas = recorder.getCanvas(); |
| subCanvas->clear(SK_ColorGREEN); |
| sk_sp<SkDeferredDisplayList> displayList = recorder.detach(); |
| // end of threadable work |
| gpuSurface->draw(displayList); |
| sk_sp<SkImage> img = gpuSurface->makeImageSnapshot(); |
| canvas->drawImage(std::move(img), 0, 0); |
| } |
| } // END FIDDLE |