submodule/skia/docs/examples/Surface_MakeRenderTarget_3.cpp

   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 // HASH=5c7629c15e9ac93f098335e72560fa2e
   5 REG_FIDDLE(Surface_MakeRenderTarget_3, 256, 256, false, 0) {
   6 void draw(SkCanvas* canvas) {
   7     SkFont font(nullptr, 32);
   8     SkPaint paint;
   9     auto context = canvas->recordingContext();
  10     if (!context) {
  11          canvas->drawString("GPU only!", 20, 40, font, paint);
  12          return;
  13     }
  14     SkImageInfo info = SkImageInfo::MakeN32(256, 64, kOpaque_SkAlphaType);
  15     auto gpuSurface(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info));
  16     auto surfaceCanvas = gpuSurface->getCanvas();
  17     surfaceCanvas->clear(SK_ColorWHITE);
  18     surfaceCanvas->drawString("GPU rocks!", 20, 40, font, paint);
  19     sk_sp<SkImage> image(gpuSurface->makeImageSnapshot());
  20     canvas->drawImage(image, 0, 0);
  21 }
  22 }  // END FIDDLE