submodule/skia/docs/examples/Canvas_drawBitmapRect_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=bdbeac3c97f60a63987b1cc8e1f1e91e
   5 REG_FIDDLE(Canvas_drawBitmapRect_3, 256, 64, false, 0) {
   6 void draw(SkCanvas* canvas) {
   7     uint32_t pixels[][2] = { { 0x00000000, 0x55550000},
   8                              { 0xAAAA0000, 0xFFFF0000} };
   9     SkBitmap bitmap;
  10     bitmap.installPixels(SkImageInfo::MakeN32Premul(2, 2),
  11             (void*) pixels, sizeof(pixels[0]));
  12     SkPaint paint;
  13     canvas->scale(4, 4);
  14     for (auto color : { SK_ColorRED, SK_ColorBLUE, SK_ColorGREEN } ) {
  15         paint.setColorFilter(SkColorFilters::Blend(color, SkBlendMode::kPlus));
  16         canvas->drawImageRect(bitmap.asImage().get(), SkRect::MakeWH(8, 8),
  17                               SkSamplingOptions(), &paint);
  18         canvas->translate(8, 0);
  19     }
  20 }
  21 }  // END FIDDLE