submodule/skia/docs/examples/ImageInfo_shiftPerPixel.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=e47b911f94fc629f756a829e523a2a89
   5 REG_FIDDLE(ImageInfo_shiftPerPixel, 256, 256, true, 0) {
   6 const char* color_type(SkColorType ct) {
   7     switch (ct) {
   8         case kUnknown_SkColorType:      return "Unknown";
   9         case kAlpha_8_SkColorType:      return "Alpha_8";
  10         case kRGB_565_SkColorType:      return "RGB_565";
  11         case kARGB_4444_SkColorType:    return "ARGB_4444";
  12         case kRGBA_8888_SkColorType:    return "RGBA_8888";
  13         case kRGB_888x_SkColorType:     return "RGB_888x";
  14         case kBGRA_8888_SkColorType:    return "BGRA_8888";
  15         case kRGBA_1010102_SkColorType: return "RGBA_1010102";
  16         case kRGB_101010x_SkColorType:  return "RGB_101010x";
  17         case kGray_8_SkColorType:       return "Gray_8";
  18         case kRGBA_F16Norm_SkColorType: return "RGBA_F16Norm";
  19         case kRGBA_F16_SkColorType:     return "RGBA_F16";
  20         case kRGBA_F32_SkColorType:     return "RGBA_F32";
  21         default: SkASSERT(false); return nullptr;
  22     }
  23 }
  24 void draw(SkCanvas* canvas) {
  25     for (SkColorType colorType : {
  26     kUnknown_SkColorType, kAlpha_8_SkColorType, kRGB_565_SkColorType,
  27     kARGB_4444_SkColorType, kRGBA_8888_SkColorType, kRGB_888x_SkColorType,
  28     kBGRA_8888_SkColorType, kRGBA_1010102_SkColorType, kRGB_101010x_SkColorType,
  29     kGray_8_SkColorType, kRGBA_F16_SkColorType
  30                                  } ) {
  31         SkImageInfo info = SkImageInfo::Make(1, 1, colorType, kOpaque_SkAlphaType);
  32         SkDebugf("color: k" "%s" "_SkColorType" "%*s" "shiftPerPixel: %d\n",
  33                 color_type(colorType), (int)(14 - strlen(color_type(colorType))), " ",
  34                 info.shiftPerPixel());
  35     }
  36 }
  37 }  // END FIDDLE