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(Bitmap_ComputeIsOpaque, 256, 256, true, 0) { draw(SkCanvas * canvas)5void draw(SkCanvas* canvas) { 6 SkBitmap bitmap; 7 bitmap.setInfo(SkImageInfo::Make(2, 2, kN32_SkColorType, kPremul_SkAlphaType)); 8 for (int index = 0; index < 2; ++index) { 9 bitmap.allocPixels(); 10 bitmap.eraseColor(0x00000000); 11 SkDebugf("computeIsOpaque: %s\n", SkBitmap::ComputeIsOpaque(bitmap) ? "true" : "false"); 12 bitmap.eraseColor(0xFFFFFFFF); 13 SkDebugf("computeIsOpaque: %s\n", SkBitmap::ComputeIsOpaque(bitmap) ? "true" : "false"); 14 bitmap.setInfo(bitmap.info().makeAlphaType(kOpaque_SkAlphaType)); 15 } 16 } 17 } // END FIDDLE 18