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cd: switch to CD drive emu code from genplus

Browse source 
same license, much cleaner code
This commit is contained in:
notaz 2013-10-06 21:08:07 +03:00
parent 3f23709ef3
commit 274fcc35aa
25 changed files with 1798 additions and 1824 deletions
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27
pico/pico_int.h
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@ -374,9 +374,6 @@ struct PicoSRAM
};
// MCD
#include "cd/cd_sys.h"
#include "cd/LC89510.h"
#define PCM_MIXBUF_LEN ((12500000 / 384) / 50 + 1)
struct mcd_pcm
@ -448,9 +445,8 @@ typedef struct
unsigned char bram[0x2000]; // 110200: 8K
struct mcd_misc m; // 112200: misc
struct mcd_pcm pcm; // 112240:
_scd_toc TOC; // not to be saved
CDD cdd;
_scd scd;
void *cdda_stream;
int cdda_type;
int pcm_mixbuf[PCM_MIXBUF_LEN * 2];
int pcm_mixpos;
char pcm_mixbuf_dirty;
@ -628,6 +624,19 @@ void cdc_reg_w(unsigned char data);
unsigned char cdc_reg_r(void);
unsigned short cdc_host_r(void);
// cd/cdd.c
void cdd_reset(void);
int cdd_context_save(unsigned char *state);
int cdd_context_load(unsigned char *state);
int cdd_context_load_old(unsigned char *state);
void cdd_read_data(unsigned char *dst);
void cdd_read_audio(unsigned int samples);
void cdd_update(void);
void cdd_process(void);
// cd/cd_image.c
int load_cd_image(const char *cd_img_name, int *type);
// cd/gfx.c
void gfx_init(void);
void gfx_start(unsigned int base);
@ -727,13 +736,14 @@ PICO_INTERNAL int SekInterruptS68k(int irq);
void SekInterruptClearS68k(int irq);
// sound/sound.c
PICO_INTERNAL void cdda_start_play();
extern short cdda_out_buffer[2*1152];
extern int PsndLen_exc_cnt;
extern int PsndLen_exc_add;
extern int timer_a_next_oflow, timer_a_step; // in z80 cycles
extern int timer_b_next_oflow, timer_b_step;
void cdda_start_play(int lba_base, int lba_offset, int lb_len);
void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);
void ym2612_pack_state(void);
void ym2612_unpack_state(void);
@ -786,9 +796,6 @@ PICO_INTERNAL void z80_exit(void);
PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);
PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);
// cd/buffering.c
PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);
// sound/sound.c
PICO_INTERNAL void PsndReset(void);
PICO_INTERNAL void PsndDoDAC(int line_to);