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1 // Copyright 2014 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 // This file contains an interface of output pictures for the Vaapi | |
6 // video decoder. This is implemented by different window system | |
7 // (X11/Ozone) and used by VaapiVideoDecodeAccelerator to produce | |
8 // output pictures. | |
9 | |
10 #ifndef CONTENT_COMMON_GPU_MEDIA_VAAPI_PICTURE_H_ | |
11 #define CONTENT_COMMON_GPU_MEDIA_VAAPI_PICTURE_H_ | |
12 | |
13 #include "base/callback.h" | |
14 #include "base/memory/linked_ptr.h" | |
15 #include "base/memory/ref_counted.h" | |
16 #include "base/threading/non_thread_safe.h" | |
17 #include "ui/gfx/size.h" | |
18 | |
19 namespace content { | |
20 | |
21 class VASurface; | |
22 class VaapiWrapper; | |
23 | |
24 // Picture is native pixmap abstraction (X11/Ozone). | |
25 class VaapiPicture : public base::NonThreadSafe { | |
26 public: | |
27 virtual ~VaapiPicture() {} | |
28 | |
29 // Try to allocate the underlying resources for the picture. | |
30 virtual bool Initialize() = 0; | |
31 | |
32 int32 picture_buffer_id() const { return picture_buffer_id_; } | |
33 uint32 texture_id() const { return texture_id_; } | |
34 const gfx::Size& size() const { return size_; } | |
35 | |
36 // Downloads the |va_surface| into the picture, potentially scaling | |
37 // it if needed. | |
38 virtual bool DownloadFromSurface( | |
39 const scoped_refptr<VASurface>& va_surface) = 0; | |
40 | |
41 // Create a VaapiPicture of |size| to be associated with | |
42 // |picture_buffer_id| and bound to |texture_id|. | |
43 // |make_context_current| is provided for the GL operations. | |
44 static linked_ptr<VaapiPicture> CreatePicture( | |
45 const scoped_refptr<VaapiWrapper>& vaapi_wrapper, | |
46 const base::Callback<bool(void)> make_context_current, | |
47 int32 picture_buffer_id, | |
48 uint32 texture_id, | |
49 const gfx::Size& size); | |
50 | |
51 // Get the texture target used to bind EGLImages (either | |
52 // GL_TEXTURE_2D on X11 or GL_TEXTURE_EXTERNAL_OES on DRM). | |
53 static uint32 GetGLTextureTarget(); | |
54 | |
55 protected: | |
56 VaapiPicture(int32 picture_buffer_id, | |
57 uint32 texture_id, | |
58 const gfx::Size& size) | |
59 : picture_buffer_id_(picture_buffer_id), | |
60 texture_id_(texture_id), | |
61 size_(size) {} | |
62 | |
63 private: | |
64 int32 picture_buffer_id_; | |
65 uint32 texture_id_; | |
66 gfx::Size size_; | |
67 | |
68 DISALLOW_COPY_AND_ASSIGN(VaapiPicture); | |
69 }; | |
70 | |
71 } // namespace content | |
72 | |
73 #endif // CONTENT_COMMON_GPU_MEDIA_VAAPI_PICTURE_H_ | |
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