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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 <stdint.h> | |
14 | |
15 #include "base/macros.h" | |
16 #include "base/memory/linked_ptr.h" | |
17 #include "base/memory/ref_counted.h" | |
18 #include "base/threading/non_thread_safe.h" | |
19 #include "content/common/gpu/media/gpu_video_decode_accelerator_helpers.h" | |
20 #include "ui/gfx/geometry/size.h" | |
21 | |
22 namespace gl { | |
23 class GLImage; | |
24 } | |
25 | |
26 namespace content { | |
27 | |
28 class VASurface; | |
29 class VaapiWrapper; | |
30 | |
31 // Picture is native pixmap abstraction (X11/Ozone). | |
32 class VaapiPicture : public base::NonThreadSafe { | |
33 public: | |
34 virtual ~VaapiPicture() {} | |
35 | |
36 // Try to allocate the underlying resources for the picture. | |
37 virtual bool Initialize() = 0; | |
38 | |
39 int32_t picture_buffer_id() const { return picture_buffer_id_; } | |
40 uint32_t texture_id() const { return texture_id_; } | |
41 const gfx::Size& size() const { return size_; } | |
42 | |
43 virtual bool AllowOverlay() const; | |
44 | |
45 // Returns the |GLImage|, if any, to bind to the texture. | |
46 virtual scoped_refptr<gl::GLImage> GetImageToBind() = 0; | |
47 | |
48 // Downloads the |va_surface| into the picture, potentially scaling | |
49 // it if needed. | |
50 virtual bool DownloadFromSurface( | |
51 const scoped_refptr<VASurface>& va_surface) = 0; | |
52 | |
53 // Create a VaapiPicture of |size| to be associated with | |
54 // |picture_buffer_id| and bound to |texture_id|. | |
55 // |make_context_current_cb| is provided for the GL operations. | |
56 static linked_ptr<VaapiPicture> CreatePicture( | |
57 const scoped_refptr<VaapiWrapper>& vaapi_wrapper, | |
58 const MakeGLContextCurrentCallback& make_context_current_cb, | |
59 int32_t picture_buffer_id, | |
60 uint32_t texture_id, | |
61 const gfx::Size& size); | |
62 | |
63 // Get the texture target used to bind EGLImages (either | |
64 // GL_TEXTURE_2D on X11 or GL_TEXTURE_EXTERNAL_OES on DRM). | |
65 static uint32_t GetGLTextureTarget(); | |
66 | |
67 protected: | |
68 VaapiPicture(int32_t picture_buffer_id, | |
69 uint32_t texture_id, | |
70 const gfx::Size& size) | |
71 : picture_buffer_id_(picture_buffer_id), | |
72 texture_id_(texture_id), | |
73 size_(size) {} | |
74 | |
75 private: | |
76 int32_t picture_buffer_id_; | |
77 uint32_t texture_id_; | |
78 gfx::Size size_; | |
79 | |
80 DISALLOW_COPY_AND_ASSIGN(VaapiPicture); | |
81 }; | |
82 | |
83 } // namespace content | |
84 | |
85 #endif // CONTENT_COMMON_GPU_MEDIA_VAAPI_PICTURE_H_ | |
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