| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/gfx/image/image_util.h" |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "ui/gfx/codec/jpeg_codec.h" |
| #include "ui/gfx/image/image.h" |
| #include "ui/gfx/image/image_skia.h" |
| |
| namespace gfx { |
| |
| // The iOS implementations of the JPEG functions are in image_util_ios.mm. |
| #if !defined(OS_IOS) |
| Image ImageFrom1xJPEGEncodedData(const unsigned char* input, |
| size_t input_size) { |
| scoped_ptr<SkBitmap> bitmap(gfx::JPEGCodec::Decode(input, input_size)); |
| if (bitmap.get()) |
| return Image::CreateFrom1xBitmap(*bitmap); |
| |
| return Image(); |
| } |
| |
| bool JPEG1xEncodedDataFromImage(const Image& image, int quality, |
| std::vector<unsigned char>* dst) { |
| const gfx::ImageSkiaRep& image_skia_rep = |
| image.AsImageSkia().GetRepresentation(1.0f); |
| if (image_skia_rep.scale() != 1.0f) |
| return false; |
| |
| const SkBitmap& bitmap = image_skia_rep.sk_bitmap(); |
| SkAutoLockPixels bitmap_lock(bitmap); |
| |
| if (!bitmap.readyToDraw()) |
| return false; |
| |
| return gfx::JPEGCodec::Encode( |
| reinterpret_cast<unsigned char*>(bitmap.getAddr32(0, 0)), |
| gfx::JPEGCodec::FORMAT_SkBitmap, bitmap.width(), |
| bitmap.height(), |
| static_cast<int>(bitmap.rowBytes()), quality, |
| dst); |
| } |
| #endif // !defined(OS_IOS) |
| |
| } |