OLD | NEW |
---|---|
(Empty) | |
1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "remoting/client/jni/jni_frame_consumer.h" | |
6 | |
7 #include "base/android/jni_android.h" | |
8 #include "base/logging.h" | |
9 #include "remoting/client/frame_producer.h" | |
10 #include "remoting/client/jni/chromoting_jni.h" | |
11 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h" | |
12 | |
13 namespace { | |
14 | |
15 // Allocates its buffer within a Java direct byte buffer, where it can be | |
16 // accessed by both native and managed code. | |
17 class DirectDesktopFrame : public webrtc::BasicDesktopFrame { | |
18 public: | |
19 DirectDesktopFrame(int width, int height); | |
Wez
2013/07/16 18:45:53
You need a(n empty) virtual dtor for this class, s
solb
2013/07/16 21:35:41
Done.
| |
20 | |
21 jobject buffer() const { | |
22 return buffer_; | |
23 } | |
24 | |
25 private: | |
26 jobject buffer_; | |
27 }; | |
28 | |
29 DirectDesktopFrame::DirectDesktopFrame(int width, int height) | |
Wez
2013/07/16 18:45:53
You can move this implementation in-line to the ct
solb
2013/07/16 21:35:41
I'd rather not inline the constructor.
| |
30 : webrtc::BasicDesktopFrame(webrtc::DesktopSize(width, height)) { | |
31 JNIEnv* env = base::android::AttachCurrentThread(); | |
32 buffer_ = env->NewDirectByteBuffer(data(), stride()*height); | |
33 } | |
34 | |
35 } // namespace | |
36 | |
37 namespace remoting { | |
38 | |
39 JniFrameConsumer::JniFrameConsumer() | |
40 : frame_producer_(NULL) { | |
41 } | |
42 | |
43 JniFrameConsumer::~JniFrameConsumer() {} | |
Wez
2013/07/16 18:45:53
Because of the slightly messy Producer/Consumer in
solb
2013/07/16 21:35:41
Done.
| |
44 | |
45 void JniFrameConsumer::set_frame_producer(FrameProducer* producer) { | |
46 frame_producer_ = producer; | |
47 } | |
48 | |
49 void JniFrameConsumer::ApplyBuffer(const SkISize& view_size, | |
50 const SkIRect& clip_area, | |
Wez
2013/07/16 18:45:53
nit: Indentation
solb
2013/07/16 21:35:41
Done.
| |
51 webrtc::DesktopFrame* buffer, | |
52 const SkRegion& region) { | |
53 ChromotingJni::GetInstance()->RedrawCanvas(); | |
Wez
2013/07/16 18:45:53
Rather than calling via the global instance, why n
solb
2013/07/16 21:35:41
It's a singleton. I think that holding a reference
Wez
2013/07/22 19:41:28
I disagree; it's clearer for the reader to see the
solb
2013/07/22 22:49:32
Done.
| |
54 | |
55 if (view_size.width() > view_size_.width() || | |
56 view_size.height() > view_size_.height()) { | |
57 LOG(INFO) << "Existing buffer is too small"; | |
58 view_size_ = view_size; | |
59 frame_producer_->RequestReturnBuffers(base::Closure()); | |
Wez
2013/07/16 18:45:53
You don't need this - the caller just returned the
solb
2013/07/16 21:35:41
Done.
| |
60 return; | |
61 } | |
62 | |
63 // Return |buffer| to |frame_producer_|. | |
Wez
2013/07/16 18:45:53
nit: Suggest: Supply |frame_producer_| with a buff
solb
2013/07/16 21:35:41
Done.
| |
64 frame_producer_->DrawBuffer(buffer); | |
65 } | |
66 | |
67 void JniFrameConsumer::ReturnBuffer(webrtc::DesktopFrame* buffer) { | |
68 LOG(INFO) << "Returning image buffer"; | |
69 | |
70 // Decide whether we will need a replacement buffer. | |
71 bool reallocate = view_size_.width() > buffer->size().width() || | |
72 view_size_.height() > buffer->size().height(); | |
Wez
2013/07/16 18:45:53
This is fragile in the case where the view size ch
solb
2013/07/16 21:35:41
I just got rid of the reallocation, since the abov
| |
73 | |
74 delete buffer; | |
75 buffer = NULL; | |
Wez
2013/07/16 18:45:53
nit: no need to NULL |buffer| here.
solb
2013/07/16 21:35:41
Done.
| |
76 | |
77 if (reallocate) { | |
78 LOG(INFO) << "Allocating replacement image buffer"; | |
79 frame_producer_->DrawBuffer(AllocateBuffer()); | |
80 } | |
81 } | |
82 | |
83 void JniFrameConsumer::SetSourceSize(const SkISize& source_size, | |
84 const SkIPoint& dpi) { | |
Wez
2013/07/16 18:45:53
nit: Indentation.
solb
2013/07/16 21:35:41
Done.
| |
85 view_size_ = source_size; | |
Wez
2013/07/16 18:45:53
nit: Add a comment to explain that we currently re
solb
2013/07/16 21:35:41
Done.
| |
86 clip_area_ = SkIRect::MakeSize(view_size_); | |
87 frame_producer_->SetOutputSizeAndClip(view_size_, clip_area_); | |
88 | |
89 // Allocate a buffer and start drawing frames onto it. | |
90 frame_producer_->DrawBuffer(AllocateBuffer()); | |
Wez
2013/07/16 18:45:53
This don't look right - you're un-conditionally al
solb
2013/07/16 21:35:41
Done.
| |
91 } | |
92 | |
93 webrtc::DesktopFrame* JniFrameConsumer::AllocateBuffer() { | |
94 DirectDesktopFrame* buffer = new DirectDesktopFrame(view_size_.width(), | |
95 view_size_.height()); | |
96 | |
97 // Update Java's reference to the buffer and record of its dimensions. | |
98 ChromotingJni::GetInstance()->UpdateImageBuffer( | |
99 view_size_.width(), | |
100 view_size_.height(), | |
101 buffer->buffer()); | |
102 | |
103 return buffer; | |
104 } | |
105 | |
106 } // namespace remoting | |
OLD | NEW |