ppapi/thunk/ppb_video_decoder_thunk.cc

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