ppapi/cpp/video_decoder.cc

   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 #include "ppapi/cpp/video_decoder.h"
   6
   7 #include "ppapi/c/pp_errors.h"
   8 #include "ppapi/c/ppb_video_decoder.h"
   9 #include "ppapi/cpp/completion_callback.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 template <>
  19 const char* interface_name<PPB_VideoDecoder_0_1>() {
  20   return PPB_VIDEODECODER_INTERFACE_0_1;
  21 }
  22
  23 template <>
  24 const char* interface_name<PPB_VideoDecoder_0_2>() {
  25   return PPB_VIDEODECODER_INTERFACE_0_2;
  26 }
  27
  28 template <>
  29 const char* interface_name<PPB_VideoDecoder_1_0>() {
  30   return PPB_VIDEODECODER_INTERFACE_1_0;
  31 }
  32
  33 template <>
  34 const char* interface_name<PPB_VideoDecoder_1_1>() {
  35   return PPB_VIDEODECODER_INTERFACE_1_1;
  36 }
  37
  38 // This struct is used to adapt CompletionCallbackWithOutput<PP_VideoPicture> to
  39 // the pre-1.0 APIs, which return PP_VideoPicture_0_1. This struct is allocated
  40 // on the heap, and deleted in CallbackConverter.
  41 struct CallbackData_0_1 {
  42   explicit CallbackData_0_1(
  43       const CompletionCallbackWithOutput<PP_VideoPicture>& cc)
  44       : original_picture(cc.output()),
  45         original_callback(cc.pp_completion_callback()) {}
  46   PP_VideoPicture_0_1 picture;
  47   PP_VideoPicture* original_picture;
  48   PP_CompletionCallback original_callback;
  49 };
  50
  51 // Convert a 1.0 style callback to pre-1.0 callback.
  52 void CallbackConverter(void* user_data, int32_t result) {
  53   CallbackData_0_1* data = static_cast<CallbackData_0_1*>(user_data);
  54   if (result == PP_OK) {
  55     PP_VideoPicture_0_1* picture = &data->picture;
  56     PP_VideoPicture* original_picture = data->original_picture;
  57     original_picture->decode_id = picture->decode_id;
  58     original_picture->texture_id = picture->texture_id;
  59     original_picture->texture_target = picture->texture_target;
  60     original_picture->texture_size = picture->texture_size;
  61     // Set visible_rect to the entire picture.
  62     original_picture->visible_rect = PP_MakeRectFromXYWH(
  63         0, 0, picture->texture_size.width, picture->texture_size.height);
  64   }
  65
  66   // Now execute the original callback.
  67   PP_RunCompletionCallback(&data->original_callback, result);
  68   delete data;
  69 }
  70
  71 }  // namespace
  72
  73 VideoDecoder::VideoDecoder() {
  74 }
  75
  76 VideoDecoder::VideoDecoder(const InstanceHandle& instance) {
  77   if (has_interface<PPB_VideoDecoder_1_1>()) {
  78     PassRefFromConstructor(
  79         get_interface<PPB_VideoDecoder_1_1>()->Create(instance.pp_instance()));
  80   } else if (has_interface<PPB_VideoDecoder_1_0>()) {
  81     PassRefFromConstructor(
  82         get_interface<PPB_VideoDecoder_1_0>()->Create(instance.pp_instance()));
  83   } else if (has_interface<PPB_VideoDecoder_0_2>()) {
  84     PassRefFromConstructor(
  85         get_interface<PPB_VideoDecoder_0_2>()->Create(instance.pp_instance()));
  86   } else if (has_interface<PPB_VideoDecoder_0_1>()) {
  87     PassRefFromConstructor(
  88         get_interface<PPB_VideoDecoder_0_1>()->Create(instance.pp_instance()));
  89   }
  90 }
  91
  92 VideoDecoder::VideoDecoder(const VideoDecoder& other) : Resource(other) {
  93 }
  94
  95 int32_t VideoDecoder::Initialize(const Graphics3D& context,
  96                                  PP_VideoProfile profile,
  97                                  PP_HardwareAcceleration acceleration,
  98                                  uint32_t min_picture_count,
  99                                  const CompletionCallback& cc) {
 100   if (has_interface<PPB_VideoDecoder_1_1>()) {
 101     return get_interface<PPB_VideoDecoder_1_1>()->Initialize(
 102         pp_resource(), context.pp_resource(), profile, acceleration,
 103         min_picture_count, cc.pp_completion_callback());
 104   }
 105   if (has_interface<PPB_VideoDecoder_1_0>()) {
 106     if (min_picture_count != 0)
 107         return cc.MayForce(PP_ERROR_NOTSUPPORTED);
 108     return get_interface<PPB_VideoDecoder_1_0>()->Initialize(
 109         pp_resource(), context.pp_resource(), profile, acceleration,
 110         cc.pp_completion_callback());
 111   }
 112   if (has_interface<PPB_VideoDecoder_0_2>()) {
 113     if (min_picture_count != 0)
 114         return cc.MayForce(PP_ERROR_NOTSUPPORTED);
 115     return get_interface<PPB_VideoDecoder_0_2>()->Initialize(
 116         pp_resource(), context.pp_resource(), profile, acceleration,
 117         cc.pp_completion_callback());
 118   }
 119   if (has_interface<PPB_VideoDecoder_0_1>()) {
 120     if (min_picture_count != 0)
 121         return cc.MayForce(PP_ERROR_NOTSUPPORTED);
 122     if (acceleration == PP_HARDWAREACCELERATION_NONE)
 123       return cc.MayForce(PP_ERROR_NOTSUPPORTED);
 124     return get_interface<PPB_VideoDecoder_0_1>()->Initialize(
 125         pp_resource(),
 126         context.pp_resource(),
 127         profile,
 128         acceleration == PP_HARDWAREACCELERATION_WITHFALLBACK
 129             ? PP_TRUE
 130             : PP_FALSE,
 131         cc.pp_completion_callback());
 132   }
 133   return cc.MayForce(PP_ERROR_NOINTERFACE);
 134 }
 135
 136 int32_t VideoDecoder::Decode(uint32_t decode_id,
 137                              uint32_t size,
 138                              const void* buffer,
 139                              const CompletionCallback& cc) {
 140   if (has_interface<PPB_VideoDecoder_1_0>()) {
 141     return get_interface<PPB_VideoDecoder_1_0>()->Decode(
 142         pp_resource(), decode_id, size, buffer, cc.pp_completion_callback());
 143   }
 144   if (has_interface<PPB_VideoDecoder_0_2>()) {
 145     return get_interface<PPB_VideoDecoder_0_2>()->Decode(
 146         pp_resource(), decode_id, size, buffer, cc.pp_completion_callback());
 147   }
 148   if (has_interface<PPB_VideoDecoder_0_1>()) {
 149     return get_interface<PPB_VideoDecoder_0_1>()->Decode(
 150         pp_resource(), decode_id, size, buffer, cc.pp_completion_callback());
 151   }
 152   return cc.MayForce(PP_ERROR_NOINTERFACE);
 153 }
 154
 155 int32_t VideoDecoder::GetPicture(
 156     const CompletionCallbackWithOutput<PP_VideoPicture>& cc) {
 157   if (has_interface<PPB_VideoDecoder_1_0>()) {
 158     return get_interface<PPB_VideoDecoder_1_0>()->GetPicture(
 159         pp_resource(), cc.output(), cc.pp_completion_callback());
 160   }
 161   if (has_interface<PPB_VideoDecoder_0_2>()) {
 162     // Data for our callback wrapper. The callback handler will delete it.
 163     CallbackData_0_1* data = new CallbackData_0_1(cc);
 164     return get_interface<PPB_VideoDecoder_0_2>()->GetPicture(
 165         pp_resource(), &data->picture,
 166         PP_MakeCompletionCallback(&CallbackConverter, data));
 167   }
 168   if (has_interface<PPB_VideoDecoder_0_1>()) {
 169     // Data for our callback wrapper. The callback handler will delete it.
 170     CallbackData_0_1* data = new CallbackData_0_1(cc);
 171     return get_interface<PPB_VideoDecoder_0_1>()->GetPicture(
 172         pp_resource(), &data->picture,
 173         PP_MakeCompletionCallback(&CallbackConverter, data));
 174   }
 175   return cc.MayForce(PP_ERROR_NOINTERFACE);
 176 }
 177
 178 void VideoDecoder::RecyclePicture(const PP_VideoPicture& picture) {
 179   if (has_interface<PPB_VideoDecoder_1_0>()) {
 180     get_interface<PPB_VideoDecoder_1_0>()->RecyclePicture(pp_resource(),
 181                                                           &picture);
 182   } else if (has_interface<PPB_VideoDecoder_0_2>()) {
 183     get_interface<PPB_VideoDecoder_0_2>()->RecyclePicture(pp_resource(),
 184                                                           &picture);
 185   } else if (has_interface<PPB_VideoDecoder_0_1>()) {
 186     get_interface<PPB_VideoDecoder_0_1>()->RecyclePicture(pp_resource(),
 187                                                           &picture);
 188   }
 189 }
 190
 191 int32_t VideoDecoder::Flush(const CompletionCallback& cc) {
 192   if (has_interface<PPB_VideoDecoder_1_0>()) {
 193     return get_interface<PPB_VideoDecoder_1_0>()->Flush(
 194         pp_resource(), cc.pp_completion_callback());
 195   }
 196   if (has_interface<PPB_VideoDecoder_0_2>()) {
 197     return get_interface<PPB_VideoDecoder_0_2>()->Flush(
 198         pp_resource(), cc.pp_completion_callback());
 199   }
 200   if (has_interface<PPB_VideoDecoder_0_1>()) {
 201     return get_interface<PPB_VideoDecoder_0_1>()->Flush(
 202         pp_resource(), cc.pp_completion_callback());
 203   }
 204   return cc.MayForce(PP_ERROR_NOINTERFACE);
 205 }
 206
 207 int32_t VideoDecoder::Reset(const CompletionCallback& cc) {
 208   if (has_interface<PPB_VideoDecoder_1_0>()) {
 209     return get_interface<PPB_VideoDecoder_1_0>()->Reset(
 210         pp_resource(), cc.pp_completion_callback());
 211   }
 212   if (has_interface<PPB_VideoDecoder_0_2>()) {
 213     return get_interface<PPB_VideoDecoder_0_2>()->Reset(
 214         pp_resource(), cc.pp_completion_callback());
 215   }
 216   if (has_interface<PPB_VideoDecoder_0_1>()) {
 217     return get_interface<PPB_VideoDecoder_0_1>()->Reset(
 218         pp_resource(), cc.pp_completion_callback());
 219   }
 220   return cc.MayForce(PP_ERROR_NOINTERFACE);
 221 }
 222
 223 }  // namespace pp