src/ppapi/thunk/ppb_video_decoder_dev_thunk.cc

   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 #include "ppapi/c/pp_errors.h"
   6 #include "ppapi/shared_impl/tracked_callback.h"
   7 #include "ppapi/thunk/enter.h"
   8 #include "ppapi/thunk/ppb_video_decoder_dev_api.h"
   9 #include "ppapi/thunk/resource_creation_api.h"
  10 #include "ppapi/thunk/thunk.h"
  11
  12 namespace ppapi {
  13 namespace thunk {
  14
  15 namespace {
  16
  17 typedef EnterResource<PPB_VideoDecoder_Dev_API> EnterVideoDecoder;
  18
  19 PP_Resource Create(PP_Instance instance,
  20                    PP_Resource graphics_3d,
  21                    PP_VideoDecoder_Profile profile) {
  22   EnterResourceCreation enter(instance);
  23   if (enter.failed())
  24     return 0;
  25   return enter.functions()->CreateVideoDecoderDev(
  26       instance, graphics_3d, profile);
  27 }
  28
  29 PP_Bool IsVideoDecoder(PP_Resource resource) {
  30   EnterVideoDecoder enter(resource, false);
  31   return PP_FromBool(enter.succeeded());
  32 }
  33
  34 int32_t Decode(PP_Resource video_decoder,
  35                const PP_VideoBitstreamBuffer_Dev* bitstream_buffer,
  36                PP_CompletionCallback callback) {
  37   EnterVideoDecoder enter(video_decoder, callback, true);
  38   if (enter.failed())
  39     return enter.retval();
  40   return enter.SetResult(
  41       enter.object()->Decode(bitstream_buffer, enter.callback()));
  42 }
  43
  44 void AssignPictureBuffers(PP_Resource video_decoder,
  45                           uint32_t no_of_buffers,
  46                           const PP_PictureBuffer_Dev* buffers) {
  47   EnterVideoDecoder enter(video_decoder, true);
  48   if (enter.succeeded())
  49     enter.object()->AssignPictureBuffers(no_of_buffers, buffers);
  50 }
  51
  52 void ReusePictureBuffer(PP_Resource video_decoder, int32_t picture_buffer_id) {
  53   EnterVideoDecoder enter(video_decoder, true);
  54   if (enter.succeeded())
  55     enter.object()->ReusePictureBuffer(picture_buffer_id);
  56 }
  57
  58 int32_t Flush(PP_Resource video_decoder, PP_CompletionCallback callback) {
  59   EnterVideoDecoder enter(video_decoder, callback, true);
  60   if (enter.failed())
  61     return enter.retval();
  62   return enter.SetResult(enter.object()->Flush(enter.callback()));
  63 }
  64
  65 int32_t Reset(PP_Resource video_decoder, PP_CompletionCallback callback) {
  66   EnterVideoDecoder enter(video_decoder, callback, true);
  67   if (enter.failed())
  68     return enter.retval();
  69   return enter.SetResult(enter.object()->Reset(enter.callback()));
  70 }
  71
  72 void Destroy(PP_Resource video_decoder) {
  73   EnterVideoDecoder enter(video_decoder, true);
  74   if (enter.succeeded())
  75     enter.object()->Destroy();
  76 }
  77
  78 const PPB_VideoDecoder_Dev g_ppb_videodecoder_dev_thunk = {
  79   &Create,
  80   &IsVideoDecoder,
  81   &Decode,
  82   &AssignPictureBuffers,
  83   &ReusePictureBuffer,
  84   &Flush,
  85   &Reset,
  86   &Destroy
  87 };
  88
  89 }  // namespace
  90
  91 const PPB_VideoDecoder_Dev_0_16* GetPPB_VideoDecoder_Dev_0_16_Thunk() {
  92   return &g_ppb_videodecoder_dev_thunk;
  93 }
  94
  95 }  // namespace thunk
  96 }  // namespace ppapi