blob: c2c8dd5dceb3ee3c9b77f7ca67979a96c6a4d32f [file] [log] [blame]
* Copyright 2016 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "gm/gm.h"
#include "include/codec/SkCodec.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkImage.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkStream.h"
#include "include/core/SkString.h"
#include "tools/Resources.h"
#include <memory>
namespace skiagm {
class BitmapImageGM : public GM {
BitmapImageGM() {}
SkString onShortName() override {
return SkString("bitmap-image-srgb-legacy");
SkISize onISize() override {
return SkISize::Make(2*kSize, 2*kSize);
DrawResult onDraw(SkCanvas* canvas, SkString* errorMsg) override {
// Create image.
const char* path = "images/mandrill_512_q075.jpg";
sk_sp<SkImage> image = GetResourceAsImage(path);
if (!image) {
*errorMsg = "Couldn't load images/mandrill_512_q075.jpg. "
"Did you forget to set the resource path?";
return DrawResult::kFail;
// Create matching bitmap.
std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(GetResourceAsStream(path)));
auto [codecImage, _] = codec->getImage();
// The GM will be displayed in a 2x2 grid.
// The top two squares show an sRGB image, then bitmap, drawn to a legacy canvas.
SkImageInfo linearInfo = SkImageInfo::MakeN32(2*kSize, kSize, kOpaque_SkAlphaType);
SkBitmap legacyBMCanvas;
SkCanvas legacyCanvas(legacyBMCanvas);
legacyCanvas.drawImage(image, 0.0f, 0.0f);
legacyCanvas.translate(SkScalar(kSize), 0.0f);
legacyCanvas.drawImage(codecImage, 0.0f, 0.0f);
canvas->drawImage(legacyBMCanvas.asImage(), 0.0f, 0.0f);
canvas->translate(0.0f, SkScalar(kSize));
// The bottom two squares show an sRGB image, then bitmap, drawn to a srgb canvas.
SkImageInfo srgbInfo = SkImageInfo::MakeS32(2*kSize, kSize, kOpaque_SkAlphaType);
SkBitmap srgbBMCanvas;
SkCanvas srgbCanvas(srgbBMCanvas);
srgbCanvas.drawImage(image, 0.0f, 0.0f);
srgbCanvas.translate(SkScalar(kSize), 0.0f);
srgbCanvas.drawImage(codecImage, 0.0f, 0.0f);
canvas->drawImage(srgbBMCanvas.asImage(), 0.0f, 0.0f);
return DrawResult::kOk;
inline static constexpr int kSize = 512;
DEF_GM( return new BitmapImageGM; )
} // namespace skiagm