Pixmap_reset_2.cpp 1002 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=9a392b753167cfa849cebeefd5a6e07d
  5. REG_FIDDLE(Pixmap_reset_2, 256, 64, false, 4) {
  6. void draw(SkCanvas* canvas) {
  7. std::vector<int32_t> pixels;
  8. pixels.resize(image->height() * image->width() * 4);
  9. SkPixmap pixmap(SkImageInfo::Make(image->width(), image->height(), kN32_SkColorType,
  10. image->alphaType()), (const void*) &pixels.front(), image->width() * 4);
  11. image->readPixels(pixmap, 0, 0);
  12. int x = 0;
  13. for (auto colorType : { kRGBA_8888_SkColorType, kBGRA_8888_SkColorType } ) {
  14. pixmap.reset(SkImageInfo::Make(image->width(), image->height(), colorType,
  15. image->alphaType()), (const void*) &pixels.front(), image->width() * 4);
  16. SkBitmap bitmap;
  17. bitmap.installPixels(pixmap);
  18. canvas->drawBitmap(bitmap, x, 0);
  19. x += 128;
  20. }
  21. }
  22. } // END FIDDLE