skia2/docs/examples/Dither_a.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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973 B
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 "fiddle/examples.h"
// HASH=8b26507690b71462f44642b911890bbf
REG_FIDDLE(Dither_a, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
SkBitmap bm16;
bm16.allocPixels(SkImageInfo::Make(32, 32, kRGB_565_SkColorType, kOpaque_SkAlphaType));
SkCanvas c16(bm16);
SkPaint colorPaint;
for (auto dither : { false, true } ) {
colorPaint.setDither(dither);
for (auto colors : { 0xFF333333, 0xFF666666, 0xFF999999, 0xFFCCCCCC } ) {
for (auto mask : { 0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFFFFFFFF } ) {
colorPaint.setColor(colors & mask);
c16.drawRect({0, 0, 8, 4}, colorPaint);
c16.translate(8, 0);
}
c16.translate(-32, 4);
}
}
canvas->scale(8, 8);
canvas->drawBitmap(bm16, 0, 0);
}
} // END FIDDLE