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      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
     97