Bitmap_drawsNothing.cpp 734 B

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  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=daacf43394ce4045a362a48b5774deed
  5. REG_FIDDLE(Bitmap_drawsNothing, 256, 256, true, 0) {
  6. void draw(SkCanvas* canvas) {
  7. SkBitmap bitmap;
  8. for (int w : { 0, 8 } ) {
  9. for (bool allocate : { false, true} ) {
  10. bitmap.setInfo(SkImageInfo::MakeA8(w, 8));
  11. allocate ? bitmap.allocPixels() : (void) 0 ;
  12. SkDebugf("empty:%s isNull:%s drawsNothing:%s\n", bitmap.empty() ? "true " : "false",
  13. bitmap.isNull() ? "true " : "false", bitmap.drawsNothing() ? "true" : "false");
  14. }
  15. }
  16. }
  17. } // END FIDDLE