1cb93a386Sopenharmony_ci// Copyright 2019 Google LLC.
2cb93a386Sopenharmony_ci// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3cb93a386Sopenharmony_ci#include "tools/fiddle/examples.h"
4cb93a386Sopenharmony_ci// HASH=6de6f3ef699a72ff26da1b26b23a3316
5cb93a386Sopenharmony_ciREG_FIDDLE(Surface_characterize, 256, 64, false, 0) {
6cb93a386Sopenharmony_civoid draw(SkCanvas* canvas) {
7cb93a386Sopenharmony_ci    SkFont font(nullptr, 32);
8cb93a386Sopenharmony_ci    SkPaint paint;
9cb93a386Sopenharmony_ci    auto context = canvas->recordingContext();
10cb93a386Sopenharmony_ci    if (!context) {
11cb93a386Sopenharmony_ci         canvas->drawString("GPU only!", 20, 40, font, paint);
12cb93a386Sopenharmony_ci         return;
13cb93a386Sopenharmony_ci    }
14cb93a386Sopenharmony_ci    sk_sp<SkSurface> gpuSurface = SkSurface::MakeRenderTarget(
15cb93a386Sopenharmony_ci            context, SkBudgeted::kYes, SkImageInfo::MakeN32Premul(64, 64));
16cb93a386Sopenharmony_ci    SkSurfaceCharacterization characterization;
17cb93a386Sopenharmony_ci    if (!gpuSurface->characterize(&characterization)) {
18cb93a386Sopenharmony_ci         canvas->drawString("characterization unsupported", 20, 40, font, paint);
19cb93a386Sopenharmony_ci         return;
20cb93a386Sopenharmony_ci    }
21cb93a386Sopenharmony_ci    // start of threadable work
22cb93a386Sopenharmony_ci    SkDeferredDisplayListRecorder recorder(characterization);
23cb93a386Sopenharmony_ci    SkCanvas* subCanvas = recorder.getCanvas();
24cb93a386Sopenharmony_ci    subCanvas->clear(SK_ColorGREEN);
25cb93a386Sopenharmony_ci    sk_sp<SkDeferredDisplayList> displayList = recorder.detach();
26cb93a386Sopenharmony_ci    // end of threadable work
27cb93a386Sopenharmony_ci    gpuSurface->draw(displayList);
28cb93a386Sopenharmony_ci    sk_sp<SkImage> img = gpuSurface->makeImageSnapshot();
29cb93a386Sopenharmony_ci    canvas->drawImage(std::move(img), 0, 0);
30cb93a386Sopenharmony_ci}
31cb93a386Sopenharmony_ci}  // END FIDDLE
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