| /* |
| * 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 { |
| public: |
| BitmapImageGM() {} |
| |
| protected: |
| |
| 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))); |
| SkBitmap bitmap; |
| bitmap.allocPixels(codec->getInfo()); |
| codec->getPixels(codec->getInfo(), bitmap.getPixels(), bitmap.rowBytes()); |
| |
| // 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; |
| legacyBMCanvas.allocPixels(linearInfo); |
| SkCanvas legacyCanvas(legacyBMCanvas); |
| legacyCanvas.drawImage(image, 0.0f, 0.0f); |
| legacyCanvas.translate(SkScalar(kSize), 0.0f); |
| legacyCanvas.drawImage(bitmap.asImage(), 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; |
| srgbBMCanvas.allocPixels(srgbInfo); |
| SkCanvas srgbCanvas(srgbBMCanvas); |
| srgbCanvas.drawImage(image, 0.0f, 0.0f); |
| srgbCanvas.translate(SkScalar(kSize), 0.0f); |
| srgbCanvas.drawImage(bitmap.asImage(), 0.0f, 0.0f); |
| canvas->drawImage(srgbBMCanvas.asImage(), 0.0f, 0.0f); |
| return DrawResult::kOk; |
| } |
| |
| private: |
| static constexpr int kSize = 512; |
| |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM( return new BitmapImageGM; ) |
| |
| } // namespace skiagm |