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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 "gpu/command_buffer/service/common_decoder.h" | 5 #include "gpu/command_buffer/service/common_decoder.h" |
| 6 #include "gpu/command_buffer/service/cmd_buffer_engine.h" | 6 #include "gpu/command_buffer/service/cmd_buffer_engine.h" |
| 7 | 7 |
| 8 namespace gpu { | 8 namespace gpu { |
| 9 | 9 |
| 10 CommonDecoder::Bucket::Bucket() : size_(0) {} | 10 CommonDecoder::Bucket::Bucket() : size_(0) {} |
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| 56 return true; | 56 return true; |
| 57 } | 57 } |
| 58 | 58 |
| 59 CommonDecoder::CommonDecoder() : engine_(NULL) {} | 59 CommonDecoder::CommonDecoder() : engine_(NULL) {} |
| 60 | 60 |
| 61 CommonDecoder::~CommonDecoder() {} | 61 CommonDecoder::~CommonDecoder() {} |
| 62 | 62 |
| 63 void* CommonDecoder::GetAddressAndCheckSize(unsigned int shm_id, | 63 void* CommonDecoder::GetAddressAndCheckSize(unsigned int shm_id, |
| 64 unsigned int offset, | 64 unsigned int offset, |
| 65 unsigned int size) { | 65 unsigned int size) { |
| 66 CHECK(engine_); |
| 66 Buffer buffer = engine_->GetSharedMemoryBuffer(shm_id); | 67 Buffer buffer = engine_->GetSharedMemoryBuffer(shm_id); |
| 67 if (!buffer.ptr) | 68 if (!buffer.ptr) |
| 68 return NULL; | 69 return NULL; |
| 69 unsigned int end = offset + size; | 70 unsigned int end = offset + size; |
| 70 if (end > buffer.size || end < offset) { | 71 if (end > buffer.size || end < offset) { |
| 71 return NULL; | 72 return NULL; |
| 72 } | 73 } |
| 73 return static_cast<int8*>(buffer.ptr) + offset; | 74 return static_cast<int8*>(buffer.ptr) + offset; |
| 74 } | 75 } |
| 75 | 76 |
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| 293 } | 294 } |
| 294 const void* src = bucket->GetData(offset, size); | 295 const void* src = bucket->GetData(offset, size); |
| 295 if (!src) { | 296 if (!src) { |
| 296 return error::kInvalidArguments; | 297 return error::kInvalidArguments; |
| 297 } | 298 } |
| 298 memcpy(data, src, size); | 299 memcpy(data, src, size); |
| 299 return error::kNoError; | 300 return error::kNoError; |
| 300 } | 301 } |
| 301 | 302 |
| 302 } // namespace gpu | 303 } // namespace gpu |
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