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// Copyright 2017 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/snapshot/snapshot.h"
#include "base/bind.h"
#include "base/callback.h"
#include "base/task_scheduler/post_task.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/codec/png_codec.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_util.h"
namespace ui {
namespace {
scoped_refptr<base::RefCountedMemory> EncodeImageAsPNG(
const gfx::Image& image) {
std::vector<uint8_t> result;
DCHECK(!image.AsImageSkia().GetRepresentation(1.0f).is_null());
gfx::PNGCodec::FastEncodeBGRASkBitmap(image.AsBitmap(), true, &result);
return base::RefCountedBytes::TakeVector(&result);
}
scoped_refptr<base::RefCountedMemory> EncodeImageAsJPEG(
const gfx::Image& image) {
std::vector<uint8_t> result;
DCHECK(!image.AsImageSkia().GetRepresentation(1.0f).is_null());
gfx::JPEG1xEncodedDataFromImage(image, 100, &result);
return base::RefCountedBytes::TakeVector(&result);
}
void EncodeImageAndScheduleCallback(
scoped_refptr<base::RefCountedMemory> (*encode_func)(const gfx::Image&),
const base::Callback<void(scoped_refptr<base::RefCountedMemory> data)>&
callback,
const gfx::Image& image) {
base::PostTaskWithTraitsAndReplyWithResult(
FROM_HERE, {base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN},
base::Bind(encode_func, image), callback);
}
} // namespace
void GrabWindowSnapshotAsyncPNG(
gfx::NativeWindow window,
const gfx::Rect& source_rect,
const GrabWindowSnapshotAsyncPNGCallback& callback) {
GrabWindowSnapshotAsync(
window, source_rect,
base::Bind(EncodeImageAndScheduleCallback, &EncodeImageAsPNG, callback));
}
void GrabWindowSnapshotAsyncJPEG(
gfx::NativeWindow window,
const gfx::Rect& source_rect,
const GrabWindowSnapshotAsyncJPEGCallback& callback) {
GrabWindowSnapshotAsync(
window, source_rect,
base::Bind(EncodeImageAndScheduleCallback, &EncodeImageAsJPEG, callback));
}
} // namespace ui
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