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      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 // From ppb_image_data.idl modified Tue Aug 20 08:13:36 2013.
      6 
      7 #include <string.h>
      8 
      9 #include "ppapi/c/pp_errors.h"
     10 #include "ppapi/c/ppb_image_data.h"
     11 #include "ppapi/shared_impl/ppb_image_data_shared.h"
     12 #include "ppapi/shared_impl/tracked_callback.h"
     13 #include "ppapi/thunk/enter.h"
     14 #include "ppapi/thunk/ppapi_thunk_export.h"
     15 #include "ppapi/thunk/ppb_image_data_api.h"
     16 
     17 namespace ppapi {
     18 namespace thunk {
     19 
     20 namespace {
     21 
     22 PP_ImageDataFormat GetNativeImageDataFormat(void) {
     23   VLOG(4) << "PPB_ImageData::GetNativeImageDataFormat()";
     24   return PPB_ImageData_Shared::GetNativeImageDataFormat();
     25 }
     26 
     27 PP_Bool IsImageDataFormatSupported(PP_ImageDataFormat format) {
     28   VLOG(4) << "PPB_ImageData::IsImageDataFormatSupported()";
     29   return PPB_ImageData_Shared::IsImageDataFormatSupported(format);
     30 }
     31 
     32 PP_Resource Create(PP_Instance instance,
     33                    PP_ImageDataFormat format,
     34                    const struct PP_Size* size,
     35                    PP_Bool init_to_zero) {
     36   VLOG(4) << "PPB_ImageData::Create()";
     37   EnterResourceCreation enter(instance);
     38   if (enter.failed())
     39     return 0;
     40   return enter.functions()->CreateImageData(instance,
     41                                             format,
     42                                             size,
     43                                             init_to_zero);
     44 }
     45 
     46 PP_Bool IsImageData(PP_Resource image_data) {
     47   VLOG(4) << "PPB_ImageData::IsImageData()";
     48   EnterResource<PPB_ImageData_API> enter(image_data, false);
     49   return PP_FromBool(enter.succeeded());
     50 }
     51 
     52 PP_Bool Describe(PP_Resource image_data, struct PP_ImageDataDesc* desc) {
     53   VLOG(4) << "PPB_ImageData::Describe()";
     54   EnterResource<PPB_ImageData_API> enter(image_data, true);
     55   if (enter.failed()) {
     56     memset(desc, 0, sizeof(*desc));
     57     return PP_FALSE;
     58   }
     59   return enter.object()->Describe(desc);
     60 }
     61 
     62 void* Map(PP_Resource image_data) {
     63   VLOG(4) << "PPB_ImageData::Map()";
     64   EnterResource<PPB_ImageData_API> enter(image_data, true);
     65   if (enter.failed())
     66     return NULL;
     67   return enter.object()->Map();
     68 }
     69 
     70 void Unmap(PP_Resource image_data) {
     71   VLOG(4) << "PPB_ImageData::Unmap()";
     72   EnterResource<PPB_ImageData_API> enter(image_data, true);
     73   if (enter.failed())
     74     return;
     75   enter.object()->Unmap();
     76 }
     77 
     78 const PPB_ImageData_1_0 g_ppb_imagedata_thunk_1_0 = {
     79   &GetNativeImageDataFormat,
     80   &IsImageDataFormatSupported,
     81   &Create,
     82   &IsImageData,
     83   &Describe,
     84   &Map,
     85   &Unmap
     86 };
     87 
     88 }  // namespace
     89 
     90 PPAPI_THUNK_EXPORT const PPB_ImageData_1_0* GetPPB_ImageData_1_0_Thunk() {
     91   return &g_ppb_imagedata_thunk_1_0;
     92 }
     93 
     94 }  // namespace thunk
     95 }  // namespace ppapi
     96