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 REG_FIDDLE(Pixmap_info, 256, 256, true, 3) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 std::vector<int32_t> pixels;
7 pixels.resize(image->height() * image->width() * 4);
8 SkPixmap pixmap(SkImageInfo::Make(image->width(), image->height(), kN32_SkColorType,
9 image->alphaType()), (const void*) &pixels.front(), image->width() * 4);
10 image->readPixels(nullptr, pixmap, 0, 0);
11 SkPixmap inset;
12 if (pixmap.extractSubset(&inset, {128, 128, 512, 512})) {
13 const SkImageInfo& info = inset.info();
14 const char* alphas[] = {"Unknown", "Opaque", "Premul", "Unpremul"};
15 const char* colors[] = {"Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888",
16 "RGB_888x", "BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
17 "RGBA_F16"};
18 SkDebugf("width: %d height: %d color: %s alpha: %s\n", info.width(), info.height(),
19 colors[info.colorType()], alphas[info.alphaType()]);
20 }
21 }
22 } // END FIDDLE
23