submodule/skia/docs/examples/Image_MakeFromTexture.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=94e9296c53bad074bf2a48ff885dac13
   5 REG_FIDDLE(Image_MakeFromTexture, 256, 128, false, 3) {
   6 void draw(SkCanvas* canvas) {
   7     auto dContext = GrAsDirectContext(canvas->recordingContext());
   8     if (!dContext) {
   9         return;
  10     }
  11
  12     canvas->scale(.25f, .25f);
  13     int x = 0;
  14     for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin } ) {
  15         sk_sp<SkImage> image = SkImage::MakeFromTexture(dContext, backEndTexture,
  16                                                         origin, kRGBA_8888_SkColorType,
  17                                                         kOpaque_SkAlphaType, nullptr);
  18         canvas->drawImage(image, x, 0);
  19         x += 512;
  20     }
  21 }
  22 }  // END FIDDLE