1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
// 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 <utility>
#include "base/bind.h"
#include "base/callback.h"
#include "base/task/post_task.h"
#include "base/task/thread_pool.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) {
if (image.IsEmpty())
return nullptr;
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&),
base::OnceCallback<void(scoped_refptr<base::RefCountedMemory> data)>
callback,
gfx::Image image) {
base::ThreadPool::PostTaskAndReplyWithResult(
FROM_HERE, {base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN},
base::BindOnce(encode_func, std::move(image)), std::move(callback));
}
} // namespace
void GrabWindowSnapshotAsyncPNG(gfx::NativeWindow window,
const gfx::Rect& source_rect,
GrabWindowSnapshotAsyncPNGCallback callback) {
GrabWindowSnapshotAsync(
window, source_rect,
base::BindOnce(&EncodeImageAndScheduleCallback, &EncodeImageAsPNG,
std::move(callback)));
}
void GrabWindowSnapshotAsyncJPEG(gfx::NativeWindow window,
const gfx::Rect& source_rect,
GrabWindowSnapshotAsyncJPEGCallback callback) {
GrabWindowSnapshotAsync(
window, source_rect,
base::BindOnce(&EncodeImageAndScheduleCallback, &EncodeImageAsJPEG,
std::move(callback)));
}
} // namespace ui
|
