skia2/docs/examples/ImageInfo_shiftPerPixel.cpp

// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
// HASH=e47b911f94fc629f756a829e523a2a89
REG_FIDDLE(ImageInfo_shiftPerPixel, 256, 256, true, 0) {
const char* color_type(SkColorType ct) {
    switch (ct) {
        case kUnknown_SkColorType:      return "Unknown";
        case kAlpha_8_SkColorType:      return "Alpha_8";
        case kRGB_565_SkColorType:      return "RGB_565";
        case kARGB_4444_SkColorType:    return "ARGB_4444";
        case kRGBA_8888_SkColorType:    return "RGBA_8888";
        case kRGB_888x_SkColorType:     return "RGB_888x";
        case kBGRA_8888_SkColorType:    return "BGRA_8888";
        case kRGBA_1010102_SkColorType: return "RGBA_1010102";
        case kRGB_101010x_SkColorType:  return "RGB_101010x";
        case kGray_8_SkColorType:       return "Gray_8";
        case kRGBA_F16Norm_SkColorType: return "RGBA_F16Norm";
        case kRGBA_F16_SkColorType:     return "RGBA_F16";
        case kRGBA_F32_SkColorType:     return "RGBA_F32";
        default: SkASSERT(false); return nullptr;
    }
}
void draw(SkCanvas* canvas) {
    for (SkColorType colorType : {
    kUnknown_SkColorType, kAlpha_8_SkColorType, kRGB_565_SkColorType,
    kARGB_4444_SkColorType, kRGBA_8888_SkColorType, kRGB_888x_SkColorType,
    kBGRA_8888_SkColorType, kRGBA_1010102_SkColorType, kRGB_101010x_SkColorType,
    kGray_8_SkColorType, kRGBA_F16_SkColorType
                                 } ) {
        SkImageInfo info = SkImageInfo::Make(1, 1, colorType, kOpaque_SkAlphaType);
        SkDebugf("color: k" "%s" "_SkColorType" "%*s" "shiftPerPixel: %d\n",
                color_type(colorType), 14 - strlen(color_type(colorType)), " ",
                info.shiftPerPixel());
    }
}
}  // END FIDDLE