skia2/docs/examples/ImageInfo_MakeS32.cpp
Herb Derby 5623d9e36f Replace SK_ARRAY_COUNT with std::size() for skia/docs
Change-Id: I9569ba4760546be6302c24658e64cb58c7db86e5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/550697
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Herb Derby <herb@google.com>
2022-06-16 20:09:58 +00:00

30 lines
1.4 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=de418ccb42471d1589508ef3955f8c53
REG_FIDDLE(ImageInfo_MakeS32, 256, 128, false, 0) {
void draw(SkCanvas* canvas) {
const int width = 256;
const int height = 32;
SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
SkColor gradColors[] = { 0xFFAA0055, 0xFF11CC88 };
SkPoint gradPoints[] = { { 0, 0 }, { width, 0 } };
SkPaint gradPaint;
gradPaint.setShader(SkGradientShader::MakeLinear(gradPoints, gradColors, nullptr,
std::size(gradColors), SkTileMode::kClamp));
SkBitmap bitmap;
bitmap.allocPixels(SkImageInfo::MakeN32(width, height, kPremul_SkAlphaType));
SkCanvas offScreen(bitmap);
offScreen.drawRect(SkRect::MakeWH(width, height), gradPaint);
canvas->drawImage(bitmap.asImage(), 0, 0);
bitmap.allocPixels(SkImageInfo::MakeS32(width, height, kPremul_SkAlphaType));
SkCanvas sRGBOffscreen(bitmap);
sRGBOffscreen.drawRect(SkRect::MakeWH(width, height), gradPaint);
canvas->drawImage(bitmap.asImage(), 0, 48);
SkBitmap noColorSpaceBitmap;
noColorSpaceBitmap.setInfo(SkImageInfo::MakeN32(width, height, kPremul_SkAlphaType));
noColorSpaceBitmap.setPixels(bitmap.getAddr(0, 0));
canvas->drawImage(noColorSpaceBitmap.asImage(), 0, 96);
}
} // END FIDDLE