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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ppapi/shared_impl/array_writer.h" | 5 #include "ppapi/shared_impl/array_writer.h" |
| 6 | 6 |
| 7 #include <algorithm> | 7 #include <algorithm> |
| 8 | 8 |
| 9 #include "ppapi/shared_impl/ppapi_globals.h" | 9 #include "ppapi/shared_impl/ppapi_globals.h" |
| 10 #include "ppapi/shared_impl/resource.h" | 10 #include "ppapi/shared_impl/resource.h" |
| 11 #include "ppapi/shared_impl/resource_tracker.h" | 11 #include "ppapi/shared_impl/resource_tracker.h" |
| 12 #include "ppapi/shared_impl/var.h" | 12 #include "ppapi/shared_impl/var.h" |
| 13 #include "ppapi/shared_impl/var_tracker.h" | 13 #include "ppapi/shared_impl/var_tracker.h" |
| 14 | 14 |
| 15 namespace ppapi { | 15 namespace ppapi { |
| 16 | 16 |
| 17 ArrayWriter::ArrayWriter() { | 17 ArrayWriter::ArrayWriter() { Reset(); } |
| 18 Reset(); | |
| 19 } | |
| 20 | 18 |
| 21 ArrayWriter::ArrayWriter(const PP_ArrayOutput& output) | 19 ArrayWriter::ArrayWriter(const PP_ArrayOutput& output) |
| 22 : pp_array_output_(output) { | 20 : pp_array_output_(output) {} |
| 23 } | |
| 24 | 21 |
| 25 ArrayWriter::~ArrayWriter() { | 22 ArrayWriter::~ArrayWriter() {} |
| 26 } | |
| 27 | 23 |
| 28 void ArrayWriter::Reset() { | 24 void ArrayWriter::Reset() { |
| 29 pp_array_output_.GetDataBuffer = NULL; | 25 pp_array_output_.GetDataBuffer = NULL; |
| 30 pp_array_output_.user_data = NULL; | 26 pp_array_output_.user_data = NULL; |
| 31 } | 27 } |
| 32 | 28 |
| 33 bool ArrayWriter::StoreResourceVector( | 29 bool ArrayWriter::StoreResourceVector( |
| 34 const std::vector< scoped_refptr<Resource> >& input) { | 30 const std::vector<scoped_refptr<Resource> >& input) { |
| 35 // Always call the alloc function, even on 0 array size. | 31 // Always call the alloc function, even on 0 array size. |
| 36 void* dest = pp_array_output_.GetDataBuffer( | 32 void* dest = |
| 37 pp_array_output_.user_data, | 33 pp_array_output_.GetDataBuffer(pp_array_output_.user_data, |
| 38 static_cast<uint32_t>(input.size()), | 34 static_cast<uint32_t>(input.size()), |
| 39 sizeof(PP_Resource)); | 35 sizeof(PP_Resource)); |
| 40 | 36 |
| 41 // Regardless of success, we clear the output to prevent future calls on | 37 // Regardless of success, we clear the output to prevent future calls on |
| 42 // this same output object. | 38 // this same output object. |
| 43 Reset(); | 39 Reset(); |
| 44 | 40 |
| 45 if (input.empty()) | 41 if (input.empty()) |
| 46 return true; // Allow plugin to return NULL on 0 elements. | 42 return true; // Allow plugin to return NULL on 0 elements. |
| 47 if (!dest) | 43 if (!dest) |
| 48 return false; | 44 return false; |
| 49 | 45 |
| 50 // Convert to PP_Resources. | 46 // Convert to PP_Resources. |
| 51 PP_Resource* dest_resources = static_cast<PP_Resource*>(dest); | 47 PP_Resource* dest_resources = static_cast<PP_Resource*>(dest); |
| 52 for (size_t i = 0; i < input.size(); i++) | 48 for (size_t i = 0; i < input.size(); i++) |
| 53 dest_resources[i] = input[i]->GetReference(); | 49 dest_resources[i] = input[i]->GetReference(); |
| 54 return true; | 50 return true; |
| 55 } | 51 } |
| 56 | 52 |
| 57 bool ArrayWriter::StoreResourceVector(const std::vector<PP_Resource>& input) { | 53 bool ArrayWriter::StoreResourceVector(const std::vector<PP_Resource>& input) { |
| 58 // Always call the alloc function, even on 0 array size. | 54 // Always call the alloc function, even on 0 array size. |
| 59 void* dest = pp_array_output_.GetDataBuffer( | 55 void* dest = |
| 60 pp_array_output_.user_data, | 56 pp_array_output_.GetDataBuffer(pp_array_output_.user_data, |
| 61 static_cast<uint32_t>(input.size()), | 57 static_cast<uint32_t>(input.size()), |
| 62 sizeof(PP_Resource)); | 58 sizeof(PP_Resource)); |
| 63 | 59 |
| 64 // Regardless of success, we clear the output to prevent future calls on | 60 // Regardless of success, we clear the output to prevent future calls on |
| 65 // this same output object. | 61 // this same output object. |
| 66 Reset(); | 62 Reset(); |
| 67 | 63 |
| 68 if (input.empty()) | 64 if (input.empty()) |
| 69 return true; // Allow plugin to return NULL on 0 elements. | 65 return true; // Allow plugin to return NULL on 0 elements. |
| 70 if (!dest) { | 66 if (!dest) { |
| 71 // Free the resources. | 67 // Free the resources. |
| 72 for (size_t i = 0; i < input.size(); i++) | 68 for (size_t i = 0; i < input.size(); i++) |
| 73 PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(input[i]); | 69 PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(input[i]); |
| 74 return false; | 70 return false; |
| 75 } | 71 } |
| 76 | 72 |
| 77 std::copy(input.begin(), input.end(), static_cast<PP_Resource*>(dest)); | 73 std::copy(input.begin(), input.end(), static_cast<PP_Resource*>(dest)); |
| 78 return true; | 74 return true; |
| 79 } | 75 } |
| 80 | 76 |
| 81 bool ArrayWriter::StoreVarVector( | 77 bool ArrayWriter::StoreVarVector( |
| 82 const std::vector< scoped_refptr<Var> >& input) { | 78 const std::vector<scoped_refptr<Var> >& input) { |
| 83 // Always call the alloc function, even on 0 array size. | 79 // Always call the alloc function, even on 0 array size. |
| 84 void* dest = pp_array_output_.GetDataBuffer( | 80 void* dest = |
| 85 pp_array_output_.user_data, | 81 pp_array_output_.GetDataBuffer(pp_array_output_.user_data, |
| 86 static_cast<uint32_t>(input.size()), | 82 static_cast<uint32_t>(input.size()), |
| 87 sizeof(PP_Var)); | 83 sizeof(PP_Var)); |
| 88 | 84 |
| 89 // Regardless of success, we clear the output to prevent future calls on | 85 // Regardless of success, we clear the output to prevent future calls on |
| 90 // this same output object. | 86 // this same output object. |
| 91 Reset(); | 87 Reset(); |
| 92 | 88 |
| 93 if (input.empty()) | 89 if (input.empty()) |
| 94 return true; // Allow plugin to return NULL on 0 elements. | 90 return true; // Allow plugin to return NULL on 0 elements. |
| 95 if (!dest) | 91 if (!dest) |
| 96 return false; | 92 return false; |
| 97 | 93 |
| 98 // Convert to PP_Vars. | 94 // Convert to PP_Vars. |
| 99 PP_Var* dest_vars = static_cast<PP_Var*>(dest); | 95 PP_Var* dest_vars = static_cast<PP_Var*>(dest); |
| 100 for (size_t i = 0; i < input.size(); i++) | 96 for (size_t i = 0; i < input.size(); i++) |
| 101 dest_vars[i] = input[i]->GetPPVar(); | 97 dest_vars[i] = input[i]->GetPPVar(); |
| 102 return true; | 98 return true; |
| 103 } | 99 } |
| 104 | 100 |
| 105 bool ArrayWriter::StoreVarVector(const std::vector<PP_Var>& input) { | 101 bool ArrayWriter::StoreVarVector(const std::vector<PP_Var>& input) { |
| 106 // Always call the alloc function, even on 0 array size. | 102 // Always call the alloc function, even on 0 array size. |
| 107 void* dest = pp_array_output_.GetDataBuffer( | 103 void* dest = |
| 108 pp_array_output_.user_data, | 104 pp_array_output_.GetDataBuffer(pp_array_output_.user_data, |
| 109 static_cast<uint32_t>(input.size()), | 105 static_cast<uint32_t>(input.size()), |
| 110 sizeof(PP_Var)); | 106 sizeof(PP_Var)); |
| 111 | 107 |
| 112 // Regardless of success, we clear the output to prevent future calls on | 108 // Regardless of success, we clear the output to prevent future calls on |
| 113 // this same output object. | 109 // this same output object. |
| 114 Reset(); | 110 Reset(); |
| 115 | 111 |
| 116 if (input.empty()) | 112 if (input.empty()) |
| 117 return true; // Allow plugin to return NULL on 0 elements. | 113 return true; // Allow plugin to return NULL on 0 elements. |
| 118 if (!dest) { | 114 if (!dest) { |
| 119 // Free the vars. | 115 // Free the vars. |
| 120 for (size_t i = 0; i < input.size(); i++) | 116 for (size_t i = 0; i < input.size(); i++) |
| 121 PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(input[i]); | 117 PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(input[i]); |
| 122 return false; | 118 return false; |
| 123 } | 119 } |
| 124 | 120 |
| 125 std::copy(input.begin(), input.end(), static_cast<PP_Var*>(dest)); | 121 std::copy(input.begin(), input.end(), static_cast<PP_Var*>(dest)); |
| 126 return true; | 122 return true; |
| 127 } | 123 } |
| 128 | 124 |
| 129 } // namespace ppapi | 125 } // namespace ppapi |
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