cd_reader.c File Reference

#include "engine/game.h"
#include <libgs.h>
#include <libetc.h>
#include <libsnd.h>

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Functions
s32	cdCheckSector (void)
	Checks that the sector just read is the next one.
void	cdReadyCallback (s32 status, u_char *result)
	The CdReadyCallback: copies each sector as it arrives, pauses at the end.
void	cdSyncCallback (s32 status, u_char *result)
	The CdSyncCallback: Setloc, Setmode (double speed, whole sectors), ReadN, and CdlPause once the sectors are in.
s32	isCdReading (void)
	Whether the CD reader is busy.
void	startCdRead (void)
	Starts the read readFile set up: seeks to its first sector.
void	readFile (s32 file, s32 offset, s32 size, void *buffer, s32 *done)
	Starts reading size sectors (0: all) of a file into buffer; ignored while busy.

Variables
static u_char	CD_MODE [8]
	-G8 unit: small variables defined here are reached through $gp
CdReader	CD_READER
	The CD reader.

Function Documentation

cdCheckSector()

s32 cdCheckSector

(

void

)

Checks that the sector just read is the next one.

Definition at line 17 of file cd_reader.c.

Referenced by cdReadyCallback().

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cdReadyCallback()

void cdReadyCallback	(	s32	status,
		u_char *	result
	)

The CdReadyCallback: copies each sector as it arrives, pauses at the end.

The two callbacks take the status as an int, not CdlCB's u_char, which GCC would truncate on entry (more code), so they are registered with a cast.

< Data Ready

Definition at line 34 of file cd_reader.c.

Referenced by cdSyncCallback().

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cdSyncCallback()

void cdSyncCallback	(	s32	status,
		u_char *	result
	)

The CdSyncCallback: Setloc, Setmode (double speed, whole sectors), ReadN, and CdlPause once the sectors are in.

< Error Detected

< Command Complete

< 0: normal speed 1: double speed

< 0: 2048 byte 1: 2340byte

Definition at line 54 of file cd_reader.c.

Referenced by startCdRead().

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isCdReading()

s32 isCdReading

(

void

)

Whether the CD reader is busy.

Definition at line 95 of file cd_reader.c.

Referenced by readFile().

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startCdRead()

void startCdRead

(

void

)

Starts the read readFile set up: seeks to its first sector.

Definition at line 100 of file cd_reader.c.

Referenced by cdSyncCallback(), and readFile().

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readFile()

void readFile	(	s32	file,
		s32	offset,
		s32	size,
		void *	buffer,
		s32 *	done
	)

Starts reading size sectors (0: all) of a file into buffer; ignored while busy.

Definition at line 110 of file cd_reader.c.

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Variable Documentation

CD_MODE

u_char CD_MODE[8]

static

-G8 unit: small variables defined here are reached through $gp

Definition at line 7 of file cd_reader.c.

Referenced by cdSyncCallback().

CD_READER

CdReader CD_READER

Initial value:

= {
    0, 0, 0, 0, 0,  ((void *)0) , {0}, 0, 0, 0, 0,
    isCdReading,
    readFile,
}

The CD reader.

Definition at line 10 of file cd_reader.c.

Referenced by cdCheckSector(), cdReadyCallback(), cdSyncCallback(), FIELDSTG_requestTiles(), FIELDSTG_runMapStreamer(), FIELDSTG_seekStream(), isCdReading(), loadFile(), readFile(), showField(), startCdRead(), updateFileCache(), and waitToRequestBattleFiles().