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Side by Side Diff: content/browser/renderer_host/software_frame_manager.h

Issue 25942002: Make software compositing work on Mac. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix includes Created 7 years, 2 months ago
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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 #ifndef CONTENT_BROWSER_RENDERER_HOST_SOFTWARE_FRAME_MANAGER_H_
6 #define CONTENT_BROWSER_RENDERER_HOST_SOFTWARE_FRAME_MANAGER_H_
7
8 #include "base/basictypes.h"
9 #include "base/memory/ref_counted.h"
10 #include "base/memory/shared_memory.h"
11 #include "base/memory/weak_ptr.h"
12 #include "cc/output/software_frame_data.h"
13 #include "cc/resources/single_release_callback.h"
14 #include "cc/resources/texture_mailbox.h"
15 #include "ui/gfx/size.h"
16
17 namespace content {
18 class SoftwareFrame;
19 class SoftwareFrameMemoryManager;
20
21 class SoftwareFrameManagerClient {
22 public:
23 // Called when the memory for the current software frame was freed.
24 virtual void SoftwareFrameWasFreed(
25 uint32 output_surface_id, unsigned frame_id) = 0;
26 // Called immediately after CurrentSoftwareFrameWasFreed if the frame
piman 2013/10/22 22:32:48 nit: "CurrentSoftwareFrameWasFreed" doesn't exist,
ccameron 2013/10/23 01:05:58 Done
piman 2013/10/23 23:41:40 Ok, sorry, I had missed that.
27 // was freed because the FrameMemoryManager requested it be freed.
28 virtual void CurrentSoftwareFrameWasEvicted() = 0;
29 };
30
31 class SoftwareFrameManager {
32 public:
33 SoftwareFrameManager(base::WeakPtr<SoftwareFrameManagerClient> client);
piman 2013/10/22 22:32:48 nit: explicit
ccameron 2013/10/23 01:05:58 Done.
34 ~SoftwareFrameManager();
35
36 // Swap to a new frame from shared memory. This frame is guaranteed to
piman 2013/10/22 22:32:48 nit: Swaps
ccameron 2013/10/23 01:05:58 Done.
37 // not be evicted until SwapToNewFrameComplete is called.
38 bool SwapToNewFrame(
39 uint32 output_surface_id,
40 const cc::SoftwareFrameData* frame_data,
41 float frame_device_scale_factor,
42 base::ProcessHandle process_handle);
43 void SwapToNewFrameComplete(bool visible);
44 void SetVisibility(bool visible);
45 bool HasCurrentFrame() const;
46 void DiscardCurrentFrame();
47 void GetCurrentFrameMailbox(
48 cc::TextureMailbox* mailbox,
49 scoped_ptr<cc::SingleReleaseCallback>* callback);
50 const void* GetCurrentFramePixels() const;
51 gfx::Size GetCurrentFrameSizeInPixels() const;
52 gfx::Size GetCurrentFrameSizeInDIP() const;
53
54 // Called by SoftwareFrameMemoryManager to demand that the current frame
55 // be evicted.
piman 2013/10/22 22:32:48 nit: maybe make it private and make SoftwareFrameM
ccameron 2013/10/23 01:05:58 Done.
56 void EvictCurrentFrame();
57
58 private:
59 base::WeakPtr<SoftwareFrameManagerClient> client_;
60
61 // This holds the current software framebuffer.
62 scoped_refptr<SoftwareFrame> current_frame_;
piman 2013/10/22 22:32:48 nit: DISALLOW_COPY_AND_ASSIGN
ccameron 2013/10/23 01:05:58 Done.
63 };
64
65 } // namespace content
66
67 #endif // CONTENT_BROWSER_RENDERER_HOST_SOFTWARE_FRAME_MANAGER_H_
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