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1 // Copyright 2017 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 MEDIA_GPU_COMMAND_BUFFER_HELPER_H_ | |
6 #define MEDIA_GPU_COMMAND_BUFFER_HELPER_H_ | |
7 | |
8 #include <stdint.h> | |
9 | |
10 #include <memory> | |
11 | |
12 #include "base/memory/ref_counted.h" | |
13 #include "base/optional.h" | |
14 #include "media/gpu/media_gpu_export.h" | |
15 #include "ui/gl/gl_bindings.h" | |
16 | |
17 namespace gpu { | |
18 class GpuCommandBufferStub; | |
19 struct Mailbox; | |
20 struct SyncToken; | |
21 namespace gles2 { | |
22 class TextureRef; | |
23 } // namespace gles2 | |
24 } // namespace gpu | |
25 | |
26 namespace media { | |
27 | |
28 // Utility methods to simplify working with a gpu::GpuCommandBufferStub from | |
29 // inside VDAs. | |
30 class MEDIA_GPU_EXPORT CommandBufferHelper { | |
31 public: | |
32 static std::unique_ptr<CommandBufferHelper> Create( | |
33 gpu::GpuCommandBufferStub* stub); | |
34 | |
35 virtual ~CommandBufferHelper() {} | |
36 | |
37 // TODO(sandersd): Provide scoped version? | |
38 virtual bool MakeContextCurrent() = 0; | |
39 | |
40 // Creates a texture and configures it as a video frame (linear filtering, | |
41 // clamp to edge, no mipmaps). The context must be current. | |
42 // | |
43 // See glTexImage2D() for parameter definitions. | |
44 // | |
45 // Returns nullptr on failure. | |
46 virtual scoped_refptr<gpu::gles2::TextureRef> CreateTexture( | |
47 GLenum target, | |
48 GLenum internal_format, | |
49 GLsizei width, | |
50 GLsizei height, | |
51 GLenum format, | |
52 GLenum type) = 0; | |
53 | |
54 // Creates a sync token that has already been released. | |
55 virtual base::Optional<gpu::SyncToken> CreateSyncToken() = 0; | |
56 | |
57 // Creates a malbox for a texture. | |
watk
2017/06/14 00:01:38
mailbox
sandersd (OOO until July 31)
2017/06/16 22:31:38
Done.
| |
58 virtual base::Optional<gpu::Mailbox> CreateMailbox( | |
59 gpu::gles2::TextureRef* texture_ref) = 0; | |
60 }; | |
61 | |
62 } // namespace media | |
63 | |
64 #endif // MEDIA_GPU_COMMAND_BUFFER_HELPER_H_ | |
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