| /* |
| * Copyright 2011 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/core/SkBitmap.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkData.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkImage.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkStream.h" |
| #include "include/core/SkString.h" |
| #include "include/encode/SkJpegEncoder.h" |
| #include "include/encode/SkPngEncoder.h" |
| #include "tools/Resources.h" |
| |
| namespace skiagm { |
| |
| class EncodeGM : public GM { |
| public: |
| EncodeGM() {} |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("encode"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(1024, 600); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkBitmap orig; |
| GetResourceAsBitmap("images/mandrill_512_q075.jpg", &orig); |
| SkDynamicMemoryWStream stream; |
| SkASSERT_RELEASE(SkPngEncoder::Encode(&stream, orig.pixmap(), {})); |
| sk_sp<SkData> pngData = stream.detachAsData(); |
| stream.reset(); |
| |
| SkASSERT_RELEASE(SkJpegEncoder::Encode(&stream, orig.pixmap(), {})); |
| sk_sp<SkData> jpgData = stream.detachAsData(); |
| |
| sk_sp<SkImage> pngImage = SkImages::DeferredFromEncodedData(pngData); |
| sk_sp<SkImage> jpgImage = SkImages::DeferredFromEncodedData(jpgData); |
| canvas->drawImage(pngImage.get(), 0.0f, 0.0f); |
| canvas->drawImage(jpgImage.get(), 512.0f, 0.0f); |
| |
| SkFont font; |
| font.setEdging(SkFont::Edging::kAlias); |
| canvas->drawString("Images should look identical.", 450.0f, 550.0f, font, SkPaint()); |
| } |
| |
| private: |
| using INHERITED = GM; |
| }; |
| |
| DEF_GM( return new EncodeGM; ) |
| } // namespace skiagm |
| |
| /////////// |
| |
| #if 0 |
| DEF_SIMPLE_GM(jpeg_orientation, canvas, 1000, 1000) { |
| static sk_sp<SkImage> imgs[8]; |
| if (!imgs[0]) { |
| for (int i = 0; i < 8; ++i) { |
| SkString path; |
| path.printf("/skia/orientation/Landscape_%d.jpg", i + 1); |
| auto stream = SkStream::MakeFromFile(path.c_str()); |
| auto data = SkData::MakeFromStream(stream.get(), stream->getLength()); |
| imgs[i] = SkImages::DeferredFromEncodedData(data, nullptr); |
| } |
| } |
| canvas->scale(0.25, 0.25); |
| for (int i = 0; i < 8; ++i) { |
| SkImage* img = imgs[i].get(); |
| canvas->drawImage(img, 0, 0, nullptr); |
| canvas->translate(0, img->height()); |
| if (i == 3) { |
| canvas->translate(img->width(), -4*img->height()); |
| } |
| } |
| } |
| #endif |