| // Copyright 2018 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CORE_FXCODEC_CODEC_CFX_CODEC_MEMORY_H_ |
| #define CORE_FXCODEC_CODEC_CFX_CODEC_MEMORY_H_ |
| |
| #include "core/fxcrt/retain_ptr.h" |
| #include "third_party/base/span.h" |
| |
| class CFX_CodecMemory final : public Retainable { |
| public: |
| template <typename T, typename... Args> |
| friend RetainPtr<T> pdfium::MakeRetain(Args&&... args); |
| |
| uint8_t* GetBuffer() { return buffer_.data(); } |
| size_t GetSize() const { return buffer_.size(); } |
| size_t GetPosition() const { return pos_; } |
| bool IsEOF() const { return pos_ >= buffer_.size(); } |
| size_t ReadBlock(void* buffer, size_t size); |
| |
| // Sets the cursor position to |pos| if possible. |
| bool Seek(size_t pos); |
| |
| private: |
| explicit CFX_CodecMemory(pdfium::span<uint8_t> buffer); |
| ~CFX_CodecMemory() override; |
| |
| pdfium::span<uint8_t> const buffer_; |
| size_t pos_ = 0; |
| }; |
| |
| #endif // CORE_FXCODEC_CODEC_CFX_CODEC_MEMORY_H_ |