submodule/skia/docs/examples/ColorTypeBytesPerPixel.cpp

   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=09ef49d07cb7005ba3e34d5ea53896f5
   5 REG_FIDDLE(ColorTypeBytesPerPixel, 256, 192, 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     SkPaint paint;
  11     SkFont font(SkTypeface::MakeFromName("monospace", SkFontStyle()), 10);
  12     int y = 15;
  13     canvas->drawString("    colorType  bytes", 10, y, font, paint);
  14     for (SkColorType colorType : {
  15     kUnknown_SkColorType, kAlpha_8_SkColorType, kRGB_565_SkColorType,
  16     kARGB_4444_SkColorType, kRGBA_8888_SkColorType, kRGB_888x_SkColorType,
  17     kBGRA_8888_SkColorType, kRGBA_1010102_SkColorType, kRGB_101010x_SkColorType,
  18     kGray_8_SkColorType, kRGBA_F16_SkColorType
  19                                  } ) {
  20         int result = SkColorTypeBytesPerPixel(colorType);
  21         SkString string;
  22         string.printf("%13s %4d", colors[(int) colorType], result);
  23         canvas->drawString(string, 10, y += 14, font, paint);
  24     }
  25 }
  26 }  // END FIDDLE