submodule/skia/docs/examples/blurbug.cpp

   1 // Copyright 2020 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(blurbug, 256, 256, false, 0) {
   5 void draw(SkCanvas* canvas) {
   6     uint8_t pixels[][8] = {{0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00, 0x00},
   7                            {0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00},
   8                            {0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00},
   9                            {0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0x00, 0xFF, 0xFF},
  10                            {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
  11                            {0x00, 0x00, 0xFF, 0x00, 0x00, 0xFF, 0x00, 0x00},
  12                            {0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00},
  13                            {0x00, 0x00, 0xFF, 0x00, 0x00, 0xFF, 0x00, 0x00}};
  14     SkBitmap bitmap;
  15     bitmap.installPixels(SkImageInfo::MakeA8(8, 8), (void*)pixels, sizeof(pixels[0]));
  16     SkPaint paint;
  17     paint.setMaskFilter(SkMaskFilter::MakeBlur(kSolid_SkBlurStyle, 3));
  18     for (auto color : {SK_ColorRED, SK_ColorBLUE, 0xFF007F00}) {
  19         paint.setColor(color);
  20         canvas->drawImageRect(bitmap.asImage(), SkRect::MakeWH(8, 8), SkRect::MakeWH(32, 32),
  21                               SkSamplingOptions(), &paint,
  22                               SkCanvas::kStrict_SrcRectConstraint);
  23         canvas->translate(48, 0);
  24     }
  25 }
  26 }  // END FIDDLE