/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkCanvas.h"
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#include "SkColorPriv.h"
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#include "SkData.h"
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#include "SkImage.h"
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#include "SkImageEncoder.h"
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namespace skiagm {
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class ColorCubeGM : public GM {
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public:
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ColorCubeGM() {}
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protected:
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SkString onShortName() override {
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return SkString("jpg-color-cube");
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}
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SkISize onISize() override {
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return SkISize::Make(512, 512);
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}
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void onOnceBeforeDraw() override {
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SkBitmap bmp;
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bmp.allocN32Pixels(512, 512, true);
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int bX = 0, bY = 0;
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for (int b = 0; b < 64; ++b) {
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for (int r = 0; r < 64; ++r) {
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for (int g = 0; g < 64; ++g) {
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*bmp.getAddr32(bX + r, bY + g) = SkPackARGB32(255,
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SkTPin(r * 4, 0, 255),
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SkTPin(g * 4, 0, 255),
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SkTPin(b * 4, 0, 255));
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}
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}
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bX += 64;
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if (bX >= 512) {
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bX = 0;
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bY += 64;
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}
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}
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auto jpegData = SkEncodeBitmap(bmp, SkEncodedImageFormat::kJPEG, 100);
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fImage = SkImage::MakeFromEncoded(std::move(jpegData));
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}
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void onDraw(SkCanvas* canvas) override {
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canvas->drawImage(fImage, 0, 0);
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}
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private:
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sk_sp<SkImage> fImage;
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typedef GM INHERITED;
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};
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DEF_GM( return new ColorCubeGM; )
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}
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