xref: /aosp_15_r20/external/skia/docs/examples/Surface_MakeRenderTarget_3.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 // Copyright 2019 Google LLC.
2 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3 #include "tools/fiddle/examples.h"
4 REG_FIDDLE(Surface_MakeRenderTarget_3, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkFont font(fontMgr->matchFamilyStyle(nullptr, {}), 32);
7     SkPaint paint;
8     auto context = canvas->recordingContext();
9     if (!context) {
10          canvas->drawString("GPU only!", 20, 40, font, paint);
11          return;
12     }
13     SkImageInfo info = SkImageInfo::MakeN32(256, 64, kOpaque_SkAlphaType);
14     auto gpuSurface(SkSurfaces::RenderTarget(context, skgpu::Budgeted::kNo, info));
15     auto surfaceCanvas = gpuSurface->getCanvas();
16     surfaceCanvas->clear(SK_ColorWHITE);
17     surfaceCanvas->drawString("GPU rocks!", 20, 40, font, paint);
18     sk_sp<SkImage> image(gpuSurface->makeImageSnapshot());
19     canvas->drawImage(image, 0, 0);
20 }
21 }  // END FIDDLE
22