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| 1 // Copyright (c) 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 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_ |
| 6 #define CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_ |
| 7 |
| 8 #include <map> |
| 9 #include <vector> |
| 10 |
| 11 #include "base/basictypes.h" |
| 12 #include "base/containers/hash_tables.h" |
| 13 #include "base/memory/ref_counted.h" |
| 14 #include "base/memory/scoped_ptr.h" |
| 15 #include "base/memory/scoped_vector.h" |
| 16 #include "content/common/content_export.h" |
| 17 #include "gpu/command_buffer/common/mailbox.h" |
| 18 #include "media/video/video_decode_accelerator.h" |
| 19 #include "ppapi/c/pp_codecs.h" |
| 20 #include "ppapi/host/host_message_context.h" |
| 21 #include "ppapi/host/resource_host.h" |
| 22 #include "ppapi/proxy/resource_message_params.h" |
| 23 |
| 24 namespace base { |
| 25 class SharedMemory; |
| 26 } |
| 27 |
| 28 namespace content { |
| 29 |
| 30 class PPB_Graphics3D_Impl; |
| 31 class RendererPpapiHost; |
| 32 class RenderViewImpl; |
| 33 |
| 34 class CONTENT_EXPORT PepperVideoDecoderHost |
| 35 : public ppapi::host::ResourceHost, |
| 36 public media::VideoDecodeAccelerator::Client { |
| 37 public: |
| 38 PepperVideoDecoderHost(RendererPpapiHost* host, |
| 39 PP_Instance instance, |
| 40 PP_Resource resource); |
| 41 virtual ~PepperVideoDecoderHost(); |
| 42 |
| 43 private: |
| 44 struct PendingDecode { |
| 45 PendingDecode(uint32_t shm_id, |
| 46 const ppapi::host::ReplyMessageContext& reply_context); |
| 47 ~PendingDecode(); |
| 48 |
| 49 const uint32_t shm_id; |
| 50 const ppapi::host::ReplyMessageContext reply_context; |
| 51 }; |
| 52 |
| 53 // ResourceHost implementation. |
| 54 virtual int32_t OnResourceMessageReceived( |
| 55 const IPC::Message& msg, |
| 56 ppapi::host::HostMessageContext* context) OVERRIDE; |
| 57 |
| 58 // media::VideoDecodeAccelerator::Client implementation. |
| 59 virtual void ProvidePictureBuffers(uint32 requested_num_of_buffers, |
| 60 const gfx::Size& dimensions, |
| 61 uint32 texture_target) OVERRIDE; |
| 62 virtual void DismissPictureBuffer(int32 picture_buffer_id) OVERRIDE; |
| 63 virtual void PictureReady(const media::Picture& picture) OVERRIDE; |
| 64 virtual void NotifyError(media::VideoDecodeAccelerator::Error error) OVERRIDE; |
| 65 virtual void NotifyFlushDone() OVERRIDE; |
| 66 virtual void NotifyEndOfBitstreamBuffer(int32 bitstream_buffer_id) OVERRIDE; |
| 67 virtual void NotifyResetDone() OVERRIDE; |
| 68 |
| 69 int32_t OnHostMsgInitialize(ppapi::host::HostMessageContext* context, |
| 70 const ppapi::HostResource& graphics_context, |
| 71 PP_VideoProfile profile, |
| 72 bool allow_software_fallback); |
| 73 int32_t OnHostMsgGetShm(ppapi::host::HostMessageContext* context, |
| 74 uint32_t shm_id, |
| 75 uint32_t shm_size); |
| 76 int32_t OnHostMsgDecode(ppapi::host::HostMessageContext* context, |
| 77 uint32_t shm_id, |
| 78 uint32_t size, |
| 79 int32_t decode_id); |
| 80 int32_t OnHostMsgAssignTextures(ppapi::host::HostMessageContext* context, |
| 81 const PP_Size& size, |
| 82 const std::vector<uint32_t>& texture_ids); |
| 83 int32_t OnHostMsgRecyclePicture(ppapi::host::HostMessageContext* context, |
| 84 uint32_t picture_id); |
| 85 int32_t OnHostMsgFlush(ppapi::host::HostMessageContext* context); |
| 86 int32_t OnHostMsgReset(ppapi::host::HostMessageContext* context); |
| 87 |
| 88 // Non-owning pointer. |
| 89 RendererPpapiHost* renderer_ppapi_host_; |
| 90 |
| 91 scoped_ptr<media::VideoDecodeAccelerator> decoder_; |
| 92 scoped_refptr<PPB_Graphics3D_Impl> graphics3d_; |
| 93 |
| 94 // A vector holding our shm buffers, in sync with a similar vector in the |
| 95 // resource. We use a buffer's index in these vectors as its id on both sides |
| 96 // of the proxy. Only add buffers or update them in place so as not to |
| 97 // invalidate these ids. |
| 98 ScopedVector<base::SharedMemory> shm_buffers_; |
| 99 // A vector of true/false indicating if a shm buffer is in use by the decoder. |
| 100 // This is parallel to |shm_buffers_|. |
| 101 std::vector<uint8_t> shm_buffer_busy_; |
| 102 |
| 103 // Maps decode uid to PendingDecode info. |
| 104 typedef base::hash_map<int32_t, PendingDecode> PendingDecodeMap; |
| 105 PendingDecodeMap pending_decodes_; |
| 106 |
| 107 ppapi::host::ReplyMessageContext flush_reply_context_; |
| 108 ppapi::host::ReplyMessageContext reset_reply_context_; |
| 109 |
| 110 bool initialized_; |
| 111 |
| 112 DISALLOW_COPY_AND_ASSIGN(PepperVideoDecoderHost); |
| 113 }; |
| 114 |
| 115 } // namespace content |
| 116 |
| 117 #endif // CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_ |
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