ppb_video_decoder_thunk.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019 
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/shared_impl/tracked_callback.h"
7#include "ppapi/thunk/enter.h"
8#include "ppapi/thunk/thunk.h"
9#include "ppapi/thunk/ppb_video_decoder_api.h"
10#include "ppapi/thunk/resource_creation_api.h"
11
12namespace ppapi {
13namespace thunk {
14
15namespace {
16
17typedef EnterResource<PPB_VideoDecoder_API> EnterVideoDecoder;
18
19PP_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()->CreateVideoDecoder(instance, graphics_3d, profile);
26}
27
28PP_Bool IsVideoDecoder(PP_Resource resource) {
29  EnterVideoDecoder enter(resource, false);
30  return PP_FromBool(enter.succeeded());
31}
32
33int32_t Decode(PP_Resource video_decoder,
34               const PP_VideoBitstreamBuffer_Dev* bitstream_buffer,
35               PP_CompletionCallback callback) {
36  EnterVideoDecoder enter(video_decoder, callback, true);
37  if (enter.failed())
38    return enter.retval();
39  return enter.SetResult(enter.object()->Decode(bitstream_buffer,
40                                                enter.callback()));
41}
42
43void AssignPictureBuffers(PP_Resource video_decoder,
44                          uint32_t no_of_buffers,
45                          const PP_PictureBuffer_Dev* buffers) {
46  EnterVideoDecoder enter(video_decoder, true);
47  if (enter.succeeded())
48    enter.object()->AssignPictureBuffers(no_of_buffers, buffers);
49}
50
51void ReusePictureBuffer(PP_Resource video_decoder, int32_t picture_buffer_id) {
52  EnterVideoDecoder enter(video_decoder, true);
53  if (enter.succeeded())
54    enter.object()->ReusePictureBuffer(picture_buffer_id);
55}
56
57int32_t Flush(PP_Resource video_decoder, PP_CompletionCallback callback) {
58  EnterVideoDecoder enter(video_decoder, callback, true);
59  if (enter.failed())
60    return enter.retval();
61  return enter.SetResult(enter.object()->Flush(enter.callback()));
62}
63
64int32_t Reset(PP_Resource video_decoder,
65              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
72void Destroy(PP_Resource video_decoder) {
73  EnterVideoDecoder enter(video_decoder, true);
74  if (enter.succeeded())
75    enter.object()->Destroy();
76}
77
78const PPB_VideoDecoder_Dev g_ppb_videodecoder_thunk = {
79  &Create,
80  &IsVideoDecoder,
81  &Decode,
82  &AssignPictureBuffers,
83  &ReusePictureBuffer,
84  &Flush,
85  &Reset,
86  &Destroy
87};
88
89}  // namespace
90
91const PPB_VideoDecoder_Dev_0_16* GetPPB_VideoDecoder_Dev_0_16_Thunk() {
92  return &g_ppb_videodecoder_thunk;
93}
94
95}  // namespace thunk
96}  // namespace ppapi
97