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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 "pdf/pdfium/pdfium_mem_buffer_file_read.h" | 5 #include "pdf/pdfium/pdfium_mem_buffer_file_read.h" |
| 6 | 6 |
| 7 #include <stddef.h> | 7 #include <stddef.h> |
| 8 #include <string.h> | 8 #include <string.h> |
| 9 | 9 |
| 10 namespace chrome_pdf { | 10 namespace chrome_pdf { |
| 11 | 11 |
| 12 PDFiumMemBufferFileRead::PDFiumMemBufferFileRead(const void* data, | 12 PDFiumMemBufferFileRead::PDFiumMemBufferFileRead(const void* data, |
| 13 size_t size) { | 13 size_t size) { |
| 14 m_FileLen = size; | 14 m_FileLen = size; |
| 15 m_Param = this; | 15 m_Param = this; |
| 16 m_GetBlock = &GetBlock; | 16 m_GetBlock = &GetBlock; |
| 17 data_ = reinterpret_cast<const unsigned char*>(data); | 17 data_ = reinterpret_cast<const unsigned char*>(data); |
| 18 } | 18 } |
| 19 | 19 |
| 20 PDFiumMemBufferFileRead::~PDFiumMemBufferFileRead() { | 20 PDFiumMemBufferFileRead::~PDFiumMemBufferFileRead() {} |
| 21 } | |
| 22 | 21 |
| 23 int PDFiumMemBufferFileRead::GetBlock(void* param, | 22 int PDFiumMemBufferFileRead::GetBlock(void* param, |
| 24 unsigned long position, | 23 unsigned long position, |
| 25 unsigned char* buf, | 24 unsigned char* buf, |
| 26 unsigned long size) { | 25 unsigned long size) { |
| 27 const PDFiumMemBufferFileRead* data = | 26 const PDFiumMemBufferFileRead* data = |
| 28 reinterpret_cast<const PDFiumMemBufferFileRead*>(param); | 27 reinterpret_cast<const PDFiumMemBufferFileRead*>(param); |
| 29 if (!data || position + size > data->m_FileLen) | 28 if (!data || position + size > data->m_FileLen) |
| 30 return 0; | 29 return 0; |
| 31 memcpy(buf, data->data_ + position, size); | 30 memcpy(buf, data->data_ + position, size); |
| 32 return 1; | 31 return 1; |
| 33 } | 32 } |
| 34 | 33 |
| 35 } // namespace chrome_pdf | 34 } // namespace chrome_pdf |
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