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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 // | 4 // |
| 5 // This file contains the definition of VASurface class, used for decoding by | 5 // This file contains the definition of VASurface class, used for decoding by |
| 6 // VaapiVideoDecodeAccelerator and VaapiH264Decoder. | 6 // VaapiVideoDecodeAccelerator and VaapiH264Decoder. |
| 7 | 7 |
| 8 #ifndef CONTENT_COMMON_GPU_MEDIA_VA_SURFACE_H_ | 8 #ifndef MEDIA_GPU_VA_SURFACE_H_ |
| 9 #define CONTENT_COMMON_GPU_MEDIA_VA_SURFACE_H_ | 9 #define MEDIA_GPU_VA_SURFACE_H_ |
| 10 | 10 |
| 11 #include "base/callback.h" | 11 #include "base/callback.h" |
| 12 #include "base/macros.h" | 12 #include "base/macros.h" |
| 13 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
| 14 #include "content/common/content_export.h" | 14 #include "media/gpu/media_gpu_export.h" |
| 15 #include "third_party/libva/va/va.h" | 15 #include "third_party/libva/va/va.h" |
| 16 #include "ui/gfx/geometry/size.h" | 16 #include "ui/gfx/geometry/size.h" |
| 17 | 17 |
| 18 namespace content { | 18 namespace media { |
| 19 | 19 |
| 20 // A VA-API-specific decode surface used by VaapiH264Decoder to decode into | 20 // A VA-API-specific decode surface used by VaapiH264Decoder to decode into |
| 21 // and use as reference for decoding other surfaces. It is also handed by the | 21 // and use as reference for decoding other surfaces. It is also handed by the |
| 22 // decoder to VaapiVideoDecodeAccelerator when the contents of the surface are | 22 // decoder to VaapiVideoDecodeAccelerator when the contents of the surface are |
| 23 // ready and should be displayed. VAVDA converts the surface contents into an | 23 // ready and should be displayed. VAVDA converts the surface contents into an |
| 24 // X/Drm Pixmap bound to a texture for display and releases its reference to it. | 24 // X/Drm Pixmap bound to a texture for display and releases its reference to it. |
| 25 // Decoder releases its references to the surface when it's done decoding and | 25 // Decoder releases its references to the surface when it's done decoding and |
| 26 // using it as reference. Note that a surface may still be used for reference | 26 // using it as reference. Note that a surface may still be used for reference |
| 27 // after it's been sent to output and also after it is no longer used by VAVDA. | 27 // after it's been sent to output and also after it is no longer used by VAVDA. |
| 28 // Thus, the surface can be in use by both VAVDA and the Decoder at the same | 28 // Thus, the surface can be in use by both VAVDA and the Decoder at the same |
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| 76 // | v | 76 // | v |
| 77 // | Neither VVDA nor VHD hold a reference to VASurface. VASurface is released, | 77 // | Neither VVDA nor VHD hold a reference to VASurface. VASurface is released, |
| 78 // | ReleaseCB gets called in its destructor, which puts the associated | 78 // | ReleaseCB gets called in its destructor, which puts the associated |
| 79 // | VASurfaceID back onto VVDA::available_va_surfaces_. | 79 // | VASurfaceID back onto VVDA::available_va_surfaces_. |
| 80 // | | | 80 // | | |
| 81 // '-------------------------------------| | 81 // '-------------------------------------| |
| 82 // | | 82 // | |
| 83 // v | 83 // v |
| 84 // VaapiWrapper frees VASurfaceID. | 84 // VaapiWrapper frees VASurfaceID. |
| 85 // | 85 // |
| 86 class CONTENT_EXPORT VASurface : public base::RefCountedThreadSafe<VASurface> { | 86 class MEDIA_GPU_EXPORT VASurface |
| 87 : public base::RefCountedThreadSafe<VASurface> { |
| 87 public: | 88 public: |
| 88 // Provided by user, will be called when all references to the surface | 89 // Provided by user, will be called when all references to the surface |
| 89 // are released. | 90 // are released. |
| 90 typedef base::Callback<void(VASurfaceID)> ReleaseCB; | 91 typedef base::Callback<void(VASurfaceID)> ReleaseCB; |
| 91 | 92 |
| 92 VASurface(VASurfaceID va_surface_id, | 93 VASurface(VASurfaceID va_surface_id, |
| 93 const gfx::Size& size, | 94 const gfx::Size& size, |
| 94 unsigned int format, | 95 unsigned int format, |
| 95 const ReleaseCB& release_cb); | 96 const ReleaseCB& release_cb); |
| 96 | 97 |
| 97 VASurfaceID id() { | 98 VASurfaceID id() { return va_surface_id_; } |
| 98 return va_surface_id_; | |
| 99 } | |
| 100 | 99 |
| 101 const gfx::Size& size() const { return size_; } | 100 const gfx::Size& size() const { return size_; } |
| 102 unsigned int format() const { return format_; } | 101 unsigned int format() const { return format_; } |
| 103 | 102 |
| 104 private: | 103 private: |
| 105 friend class base::RefCountedThreadSafe<VASurface>; | 104 friend class base::RefCountedThreadSafe<VASurface>; |
| 106 ~VASurface(); | 105 ~VASurface(); |
| 107 | 106 |
| 108 const VASurfaceID va_surface_id_; | 107 const VASurfaceID va_surface_id_; |
| 109 gfx::Size size_; | 108 gfx::Size size_; |
| 110 unsigned int format_; | 109 unsigned int format_; |
| 111 ReleaseCB release_cb_; | 110 ReleaseCB release_cb_; |
| 112 | 111 |
| 113 DISALLOW_COPY_AND_ASSIGN(VASurface); | 112 DISALLOW_COPY_AND_ASSIGN(VASurface); |
| 114 }; | 113 }; |
| 115 | 114 |
| 116 } // namespace content | 115 } // namespace media |
| 117 | 116 |
| 118 #endif // CONTENT_COMMON_GPU_MEDIA_VA_SURFACE_H_ | 117 #endif // MEDIA_GPU_VA_SURFACE_H_ |
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