24 lines
1.2 KiB
C++
24 lines
1.2 KiB
C++
// 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=6e0f558bf7fabc655041116288559134
|
|
REG_FIDDLE(Pixmap_info, 256, 256, true, 3) {
|
|
void draw(SkCanvas* canvas) {
|
|
std::vector<int32_t> pixels;
|
|
pixels.resize(image->height() * image->width() * 4);
|
|
SkPixmap pixmap(SkImageInfo::Make(image->width(), image->height(), kN32_SkColorType,
|
|
image->alphaType()), (const void*) &pixels.front(), image->width() * 4);
|
|
image->readPixels(nullptr, pixmap, 0, 0);
|
|
SkPixmap inset;
|
|
if (pixmap.extractSubset(&inset, {128, 128, 512, 512})) {
|
|
const SkImageInfo& info = inset.info();
|
|
const char* alphas[] = {"Unknown", "Opaque", "Premul", "Unpremul"};
|
|
const char* colors[] = {"Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888",
|
|
"RGB_888x", "BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
|
|
"RGBA_F16"};
|
|
SkDebugf("width: %d height: %d color: %s alpha: %s\n", info.width(), info.height(),
|
|
colors[info.colorType()], alphas[info.alphaType()]);
|
|
}
|
|
}
|
|
} // END FIDDLE
|