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// Copyright (c) 2011 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/codec/png_codec.h"
#include "ui/gfx/image/image.h"
namespace gfx {
Image* ImageFromPNGEncodedData(const unsigned char* input, size_t input_size) {
scoped_ptr<SkBitmap> favicon_bitmap(new SkBitmap());
if (gfx::PNGCodec::Decode(input, input_size, favicon_bitmap.get()))
return new Image(favicon_bitmap.release());
return NULL;
}
bool PNGEncodedDataFromImage(const Image& image,
std::vector<unsigned char>* dst) {
const SkBitmap& bitmap = image;
return gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, dst);
}
bool JPEGEncodedDataFromImage(const Image& image,
std::vector<unsigned char>* dst) {
const SkBitmap& bitmap = image;
SkAutoLockPixels bitmap_lock(bitmap);
// Use 90 quality (out of 100) which is pretty high, because
// we're very sensitive to artifacts for these small sized,
// highly detailed images.
return gfx::JPEGCodec::Encode(
reinterpret_cast<unsigned char*>(bitmap.getAddr32(0, 0)),
gfx::JPEGCodec::FORMAT_BGRA, bitmap.width(),
bitmap.height(),
static_cast<int>(bitmap.rowBytes()), 90,
dst);
}
}
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