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=6e0f558bf7fabc655041116288559134
5REG_FIDDLE(Pixmap_info, 256, 256, true, 3) {
6void 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(nullptr, pixmap, 0, 0);
12    SkPixmap inset;
13    if (pixmap.extractSubset(&inset, {128, 128, 512, 512})) {
14        const SkImageInfo& info = inset.info();
15        const char* alphas[] = {"Unknown", "Opaque", "Premul", "Unpremul"};
16        const char* colors[] = {"Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888",
17                "RGB_888x", "BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
18                            "RGBA_F16"};
19        SkDebugf("width: %d height: %d color: %s alpha: %s\n", info.width(), info.height(),
20                 colors[info.colorType()], alphas[info.alphaType()]);
21    }
22}
23}  // END FIDDLE
24