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