skia2/docs/examples/ImageInfo_isOpaque.cpp
Hal Canary d88c2e8e09 Docs: rename examples files to match names
Change-Id: I9a6b2780cfdd91cdd16d5a08eb9ba1214492cb7e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201982
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-03-19 18:49:22 +00:00

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// 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 "fiddle/examples.h"
// HASH=e9bd4f02b6cfb3ac864cb7fee7d7299c
REG_FIDDLE(ImageInfo_isOpaque, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
const int height = 2;
const int width = 2;
SkBitmap bitmap;
SkImageInfo imageInfo = SkImageInfo::Make(width, height, kN32_SkColorType, kPremul_SkAlphaType);
bitmap.setInfo(imageInfo);
for (int index = 0; index < 2; ++index) {
bitmap.allocPixels();
bitmap.eraseColor(0x00000000);
SkDebugf("isOpaque: %s\n", imageInfo.isOpaque() ? "true" : "false");
bitmap.eraseColor(0xFFFFFFFF);
SkDebugf("isOpaque: %s\n", imageInfo.isOpaque() ? "true" : "false");
imageInfo = imageInfo.makeAlphaType(kOpaque_SkAlphaType);
bitmap.setInfo(imageInfo);
}
}
} // END FIDDLE