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https://github.com/open-goal/jak-project
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water111
76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
#pragma once
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#include "common/common_types.h"
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#include "game/overlord/jak3/isocommon.h"
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#include "game/overlord/jak3/pagemanager.h"
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namespace jak3 {
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void jak3_overlord_init_globals_basefile();
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struct CPageList;
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struct ISOFileDef;
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struct ISO_Hdr;
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constexpr int kDefaultBufferPageCount = 4;
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/*!
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* Base class for a file that the ISO system is processing.
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* This represents an "open" file, and contains references to the buffer holding this file's data
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*/
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struct CBaseFile {
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CBaseFile();
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CBaseFile(const ISOFileDef* file, int semaphore);
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virtual ~CBaseFile() = default;
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uint8_t* CheckPageBoundary();
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int InitBuffer(CBuffer::BufferType type, ISO_Hdr* msg);
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CPageList* AllocPages();
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void TerminateBuffer();
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void FreePages();
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// buffer that stores some contents of this file
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CBuffer m_Buffer;
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// the number of pages that were allocated for reading this file.
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u32 m_nNumPages;
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// Metadata about the file
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const ISOFileDef* m_FileDef;
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// The compression format used on the file
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enum class Kind {
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UNKNOWN = 0,
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NORMAL = 1,
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LZO_COMPRESSED = 2,
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} m_FileKind = Kind::UNKNOWN;
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EIsoStatus m_Status = EIsoStatus::NONE_0;
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// The expected read rate for streaming, used to prioritize CD reads. Can be 0 if unknown/not
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// applicable.
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int m_ReadRate = 0;
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// Number of sectors that we should read in total, decided based on the file size and request from
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// user when they opened this file.
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int m_LengthPages = 0; // really, in pages...
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// The current offset. (todo: is this for data we read, processed?)
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int m_PageOffset = 0;
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// Semaphore that we should wait on before handing new data to the process callback.
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// Set to -1 if there is no semaphore.
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// (this is a bit of hack, only used for VAG streaming).
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int m_ProcessDataSemaphore = 0;
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// virtual methods
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virtual EIsoStatus BeginRead() = 0;
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virtual EIsoStatus SyncRead() = 0;
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virtual void Close() = 0;
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virtual int RecoverPages(int num_pages) = 0;
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virtual int GetSector() = 0;
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// ??
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// ??
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// ??
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};
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} // namespace jak3
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