ColorTypeValidateAlphaType.cpp 1.8 KB

12345678910111213141516171819202122232425262728293031323334
  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=befac1c29ed21507d367e4d824383a04
  5. REG_FIDDLE(ColorTypeValidateAlphaType, 256, 640, false, 0) {
  6. void draw(SkCanvas* canvas) {
  7. const char* colors[] = { "Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888", "RGB_888x",
  8. "BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
  9. "RGBA_F16" };
  10. const char* alphas[] = {"Unknown ", "Opaque ", "Premul ", "Unpremul"};
  11. SkAlphaType alphaTypes[] = { kUnknown_SkAlphaType, kOpaque_SkAlphaType, kPremul_SkAlphaType,
  12. kUnpremul_SkAlphaType
  13. };
  14. SkPaint paint;
  15. SkFont font(SkTypeface::MakeFromName("monospace", SkFontStyle()), 10);
  16. int y = 15;
  17. canvas->drawString(" colorType alphaType canonical", 10, y, font, paint);
  18. for (SkColorType colorType : {
  19. kUnknown_SkColorType, kAlpha_8_SkColorType, kRGB_565_SkColorType,
  20. kARGB_4444_SkColorType, kRGBA_8888_SkColorType, kRGB_888x_SkColorType,
  21. kBGRA_8888_SkColorType, kRGBA_1010102_SkColorType, kRGB_101010x_SkColorType,
  22. kGray_8_SkColorType, kRGBA_F16_SkColorType
  23. } ) {
  24. for (SkAlphaType alphaType : alphaTypes) {
  25. SkAlphaType canonicalAlphaType = kUnknown_SkAlphaType;
  26. bool result = SkColorTypeValidateAlphaType(colorType, alphaType, &canonicalAlphaType);
  27. SkString string;
  28. string.printf("%13s %10s %10s", colors[(int) colorType], alphas[(int) alphaType],
  29. result ? alphas[(int) canonicalAlphaType] : "------ ");
  30. canvas->drawString(string, 10, y += 14, font, paint);
  31. }
  32. }
  33. }
  34. } // END FIDDLE