aosp12/external/skia/docs/examples/Image_MakeFromPicture.cpp

28 lines
1.1 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=4aa2879b9e44dfd6648995326d2c4dcf
REG_FIDDLE(Image_MakeFromPicture, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
SkPaint paint;
SkPictureRecorder recorder;
SkCanvas* recordingCanvas = recorder.beginRecording(50, 50);
for (auto color : { SK_ColorRED, SK_ColorBLUE, 0xff007f00 } ) {
paint.setColor(color);
recordingCanvas->drawRect({10, 10, 30, 40}, paint);
recordingCanvas->translate(10, 10);
recordingCanvas->scale(1.2f, 1.4f);
}
sk_sp<SkPicture> playback = recorder.finishRecordingAsPicture();
int x = 0, y = 0;
for (auto alpha : { 70, 140, 210 } ) {
paint.setAlpha(alpha);
auto srgbColorSpace = SkColorSpace::MakeSRGB();
sk_sp<SkImage> image = SkImage::MakeFromPicture(playback, {50, 50}, nullptr, &paint,
SkImage::BitDepth::kU8, srgbColorSpace);
canvas->drawImage(image, x, y);
x += 70; y += 70;
}
}
} // END FIDDLE