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      1 // Copyright (c) 2012 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 #include "ppapi/cpp/dev/video_decoder_client_dev.h"
      6 
      7 #include "ppapi/c/dev/ppp_video_decoder_dev.h"
      8 #include "ppapi/cpp/dev/video_decoder_dev.h"
      9 #include "ppapi/cpp/instance.h"
     10 #include "ppapi/cpp/instance_handle.h"
     11 #include "ppapi/cpp/module.h"
     12 #include "ppapi/cpp/module_impl.h"
     13 
     14 namespace pp {
     15 
     16 namespace {
     17 
     18 const char kPPPVideoDecoderInterface[] = PPP_VIDEODECODER_DEV_INTERFACE;
     19 
     20 // Callback to provide buffers for the decoded output pictures.
     21 void ProvidePictureBuffers(PP_Instance instance,
     22                            PP_Resource decoder,
     23                            uint32_t req_num_of_bufs,
     24                            const PP_Size* dimensions,
     25                            uint32_t texture_target) {
     26   void* object = Instance::GetPerInstanceObject(instance,
     27                                                 kPPPVideoDecoderInterface);
     28   if (!object)
     29     return;
     30   static_cast<VideoDecoderClient_Dev*>(object)->ProvidePictureBuffers(
     31       decoder, req_num_of_bufs, *dimensions, texture_target);
     32 }
     33 
     34 void DismissPictureBuffer(PP_Instance instance,
     35                           PP_Resource decoder,
     36                           int32_t picture_buffer_id) {
     37   void* object = Instance::GetPerInstanceObject(instance,
     38                                                 kPPPVideoDecoderInterface);
     39   if (!object)
     40     return;
     41   static_cast<VideoDecoderClient_Dev*>(object)->DismissPictureBuffer(
     42       decoder, picture_buffer_id);
     43 }
     44 
     45 void PictureReady(PP_Instance instance,
     46                   PP_Resource decoder,
     47                   const PP_Picture_Dev* picture) {
     48   void* object = Instance::GetPerInstanceObject(instance,
     49                                                 kPPPVideoDecoderInterface);
     50   if (!object)
     51     return;
     52   static_cast<VideoDecoderClient_Dev*>(object)->PictureReady(decoder, *picture);
     53 }
     54 
     55 void NotifyError(PP_Instance instance,
     56                  PP_Resource decoder,
     57                  PP_VideoDecodeError_Dev error) {
     58   void* object = Instance::GetPerInstanceObject(instance,
     59                                                 kPPPVideoDecoderInterface);
     60   if (!object)
     61     return;
     62   static_cast<VideoDecoderClient_Dev*>(object)->NotifyError(decoder, error);
     63 }
     64 
     65 static PPP_VideoDecoder_Dev videodecoder_interface = {
     66   &ProvidePictureBuffers,
     67   &DismissPictureBuffer,
     68   &PictureReady,
     69   &NotifyError,
     70 };
     71 
     72 }  // namespace
     73 
     74 VideoDecoderClient_Dev::VideoDecoderClient_Dev(Instance* instance)
     75     : associated_instance_(instance) {
     76   Module::Get()->AddPluginInterface(kPPPVideoDecoderInterface,
     77                                     &videodecoder_interface);
     78   instance->AddPerInstanceObject(kPPPVideoDecoderInterface, this);
     79 }
     80 
     81 VideoDecoderClient_Dev::~VideoDecoderClient_Dev() {
     82   Instance::RemovePerInstanceObject(associated_instance_,
     83                                     kPPPVideoDecoderInterface, this);
     84 }
     85 
     86 }  // namespace pp
     87