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https://github.com/libretro/beetle-psx-libretro.git
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5d227ea4b8
Since the subchannel data is either computed from scratch or read from a separate sbi file, it's entirely unnecessary. This avoids a synchronous file read in PreSeekHack in the CD controller code which otherwise completely defeats async read behavior. It also makes the sector read hint provided to the background thread more useful.
91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
#ifndef __MDFN_CDACCESS_PBP_H
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#define __MDFN_CDACCESS_PBP_H
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#include <boolean.h>
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#include <map>
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#include "CDAccess_Image.h"
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class Stream;
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class CDAccess_PBP : public CDAccess
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{
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public:
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CDAccess_PBP(const char *path, bool image_memcache);
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virtual ~CDAccess_PBP();
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virtual bool Read_Raw_Sector(uint8_t *buf, int32_t lba);
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virtual bool Read_Raw_PW(uint8_t *buf, int32_t lba);
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virtual bool Read_TOC(TOC *toc);
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virtual void Eject(bool eject_status);
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private:
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Stream* fp;
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enum PBP_FILES{
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PARAM_SFO,
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ICON0_PNG,
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ICON1_PMF,
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PIC0_PNG,
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PIC1_PNG,
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SND0_AT3,
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DATA_PSP,
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DATA_PSAR,
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PBP_NUM_FILES
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};
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uint32_t pbp_file_offsets[PBP_NUM_FILES];
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////////////////
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uint8_t buff_raw[16][2352];
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uint8_t buff_compressed[2352 * 16];
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uint32_t *index_table;
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uint32_t index_len;
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uint32_t current_block;
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uint32_t sector_in_blk;
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////////////////
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int32_t NumTracks;
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int32_t FirstTrack;
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int32_t LastTrack;
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int32_t total_sectors;
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uint8_t disc_type;
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std::string sbi_path;
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uint32_t discs_start_offset[5];
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uint32_t psisoimg_offset;
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uint16_t fixed_sectors;
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bool is_official; // TODO: find more consistent ways to check for used compression algorithm, compressed (and/or encrypted?) audio tracks and messed up sectors
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bool ImageOpen(const char *path, bool image_memcache);
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int LoadSBI(const char* sbi_path);
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void Cleanup(void);
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CDRFILE_TRACK_INFO Tracks[100]; // Track #0(HMM?) through 99
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struct cpp11_array_doodad
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{
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uint8 data[12];
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};
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std::map<uint32, cpp11_array_doodad> SubQReplaceMap;
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void MakeSubPQ(int32 lba, uint8 *SubPWBuf);
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int decompress2(void *out, uint32_t *out_size, void *in, uint32_t in_size);
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int decode_range(unsigned int *range, unsigned int *code, unsigned char **src);
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int decode_bit(unsigned int *range, unsigned int *code, int *index, unsigned char **src, unsigned char *c);
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int decode_word(unsigned char *ptr, int index, int *bit_flag, unsigned int *range, unsigned int *code, unsigned char **src);
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int decode_number(unsigned char *ptr, int index, int *bit_flag, unsigned int *range, unsigned int *code, unsigned char **src);
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int decompress(unsigned char *out, unsigned char *in, unsigned int size);
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int decrypt_pgd(unsigned char* pgd_data, int pgd_size);
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int fix_sector(uint8_t* sector, int32_t lba);
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};
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#endif
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