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Virtual ISO: Initial commit

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This commit is contained in:
RichardG867
2022-03-26 22:17:09 -03:00
parent 7d15a75cf4
commit eeeb7b258d
6 changed files with 1279 additions and 195 deletions
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2
src/cdrom/CMakeLists.txt
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@@ -13,4 +13,4 @@
# Copyright 2020,2021 David Hrdlička.
#
add_library(cdrom OBJECT cdrom.c cdrom_image_backend.c cdrom_image.c)
add_library(cdrom OBJECT cdrom.c cdrom_image_backend.c cdrom_image_viso.c cdrom_image.c)

5
src/cdrom/cdrom_image.c
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@@ -285,11 +285,12 @@ cdrom_image_open(cdrom_t *dev, const char *fn)
dev->image = img;
/* Open the image. */
if (!cdi_set_device(img, fn))
int i = cdi_set_device(img, fn);
if (!i)
return image_open_abort(dev);
/* All good, reset state. */
if (! strcasecmp(plat_get_extension((char *) fn), "ISO"))
if (i == 2)
dev->cd_status = CD_STATUS_DATA_ONLY;
else
dev->cd_status = CD_STATUS_STOPPED;

82
src/cdrom/cdrom_image_backend.c
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@@ -20,24 +20,22 @@
#define _LARGEFILE_SOURCE
#define _LARGEFILE64_SOURCE
#define __STDC_FORMAT_MACROS
#include <stdarg.h>
#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <ctype.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
# include <string.h>
#else
# include <libgen.h>
#endif
#include <wchar.h>
#define HAVE_STDARG_H
#include <86box/86box.h>
#include <86box/plat.h>
#include <86box/cdrom_image_backend.h>
#include <86box/plat.h>
#define CDROM_BCD(x) (((x) % 10) | (((x) / 10) << 4))
@@ -45,14 +43,11 @@
#define MAX_FILENAME_LENGTH 256
#define CROSS_LEN 512
static char temp_keyword[1024];
#ifdef ENABLE_CDROM_IMAGE_BACKEND_LOG
int cdrom_image_backend_do_log = ENABLE_CDROM_IMAGE_BACKEND_LOG;
void
cdrom_image_backend_log(const char *fmt, ...)
{
@@ -65,10 +60,9 @@ cdrom_image_backend_log(const char *fmt, ...)
}
}
#else
#define cdrom_image_backend_log(fmt, ...)
# define cdrom_image_backend_log(fmt, ...)
#endif
/* Binary file functions. */
static int
bin_read(void *p, uint8_t *buffer, uint64_t seek, size_t count)
@@ -98,7 +92,6 @@ bin_read(void *p, uint8_t *buffer, uint64_t seek, size_t count)
return 1;
}
static uint64_t
bin_get_length(void *p)
{
@@ -117,7 +110,6 @@ bin_get_length(void *p)
return len;
}
static void
bin_close(void *p)
{
@@ -136,7 +128,6 @@ bin_close(void *p)
free(p);
}
static track_file_t *
bin_init(const char *filename, int *error)
{
@@ -167,7 +158,6 @@ bin_init(const char *filename, int *error)
return tf;
}
static track_file_t *
track_file_init(const char *filename, int *error)
{
@@ -176,7 +166,6 @@ track_file_init(const char *filename, int *error)
return bin_init(filename, error);
}
static void
track_file_close(track_t *trk)
{
@@ -193,7 +182,6 @@ track_file_close(track_t *trk)
trk->file = NULL;
}
/* Root functions. */
static void
cdi_clear_tracks(cd_img_t *cdi)
@@ -224,7 +212,6 @@ cdi_clear_tracks(cd_img_t *cdi)
cdi->tracks_num = 0;
}
void
cdi_close(cd_img_t *cdi)
{
@@ -232,7 +219,6 @@ cdi_close(cd_img_t *cdi)
free(cdi);
}
int
cdi_set_device(cd_img_t *cdi, const char *path)
{
@@ -240,12 +226,11 @@ cdi_set_device(cd_img_t *cdi, const char *path)
return 1;
if (cdi_load_iso(cdi, path))
return 1;
return 2;
return 0;
}
/* TODO: This never returns anything other than 1, should it even be an int? */
int
cdi_get_audio_tracks(cd_img_t *cdi, int *st_track, int *end, TMSF *lead_out)
@@ -257,7 +242,6 @@ cdi_get_audio_tracks(cd_img_t *cdi, int *st_track, int *end, TMSF *lead_out)
return 1;
}
/* TODO: This never returns anything other than 1, should it even be an int? */
int
cdi_get_audio_tracks_lba(cd_img_t *cdi, int *st_track, int *end, uint32_t *lead_out)
@@ -269,7 +253,6 @@ cdi_get_audio_tracks_lba(cd_img_t *cdi, int *st_track, int *end, uint32_t *lead_
return 1;
}
int
cdi_get_audio_track_pre(cd_img_t *cdi, int track)
{
@@ -281,7 +264,6 @@ cdi_get_audio_track_pre(cd_img_t *cdi, int track)
return trk->pre;
}
/* This replaces both Info and EndInfo, they are specified by a variable. */
int
cdi_get_audio_track_info(cd_img_t *cdi, int end, int track, int *track_num, TMSF *start, uint8_t *attr)
@@ -302,7 +284,6 @@ cdi_get_audio_track_info(cd_img_t *cdi, int end, int track, int *track_num, TMSF
return 1;
}
int
cdi_get_audio_track_info_lba(cd_img_t *cdi, int end, int track, int *track_num, uint32_t *start, uint8_t *attr)
{
@@ -319,7 +300,6 @@ cdi_get_audio_track_info_lba(cd_img_t *cdi, int end, int track, int *track_num,
return 1;
}
int
cdi_get_track(cd_img_t *cdi, uint32_t sector)
{
@@ -342,7 +322,6 @@ cdi_get_track(cd_img_t *cdi, uint32_t sector)
return -1;
}
/* TODO: See if track start is adjusted by 150 or not. */
int
cdi_get_audio_sub(cd_img_t *cdi, uint32_t sector, uint8_t *attr, uint8_t *track, uint8_t *index, TMSF *rel_pos, TMSF *abs_pos)
@@ -366,7 +345,6 @@ cdi_get_audio_sub(cd_img_t *cdi, uint32_t sector, uint8_t *attr, uint8_t *track,
return 1;
}
int
cdi_read_sector(cd_img_t *cdi, uint8_t *buffer, int raw, uint32_t sector)
{
@@ -429,7 +407,6 @@ cdi_read_sector(cd_img_t *cdi, uint8_t *buffer, int raw, uint32_t sector)
return trk->file->read(trk->file, buffer, seek, length);
}
int
cdi_read_sectors(cd_img_t *cdi, uint8_t *buffer, int raw, uint32_t sector, uint32_t num)
{
@@ -456,7 +433,6 @@ cdi_read_sectors(cd_img_t *cdi, uint8_t *buffer, int raw, uint32_t sector, uint3
return success;
}
/* TODO: Do CUE+BIN images with a sector size of 2448 even exist? */
int
cdi_read_sector_sub(cd_img_t *cdi, uint8_t *buffer, uint32_t sector)
@@ -476,7 +452,6 @@ cdi_read_sector_sub(cd_img_t *cdi, uint8_t *buffer, uint32_t sector)
return trk->file->read(trk->file, buffer, seek, 2448);
}
int
cdi_get_sector_size(cd_img_t *cdi, uint32_t sector)
{
@@ -490,7 +465,6 @@ cdi_get_sector_size(cd_img_t *cdi, uint32_t sector)
return trk->sector_size;
}
int
cdi_is_mode2(cd_img_t *cdi, uint32_t sector)
{
@@ -505,7 +479,6 @@ cdi_is_mode2(cd_img_t *cdi, uint32_t sector)
return !!(trk->mode2);
}
int
cdi_get_mode2_form(cd_img_t *cdi, uint32_t sector)
{
@@ -520,7 +493,6 @@ cdi_get_mode2_form(cd_img_t *cdi, uint32_t sector)
return trk->form;
}
static int
cdi_can_read_pvd(track_file_t *file, uint64_t sector_size, int mode2, int form)
{
@@ -534,11 +506,9 @@ cdi_can_read_pvd(track_file_t *file, uint64_t sector_size, int mode2, int form)
file->read(file, pvd, seek, COOKED_SECTOR_SIZE);
return ((pvd[0] == 1 && !strncmp((char*)(&pvd[1]), "CD001", 5) && pvd[6] == 1) ||
(pvd[8] == 1 && !strncmp((char*)(&pvd[9]), "CDROM", 5) && pvd[14] == 1));
return ((pvd[0] == 1 && !strncmp((char *) (&pvd[1]), "CD001", 5) && pvd[6] == 1) || (pvd[8] == 1 && !strncmp((char *) (&pvd[9]), "CDROM", 5) && pvd[14] == 1));
}
/* This reallocates the array and returns the pointer to the last track. */
static void
cdi_track_push_back(cd_img_t *cdi, track_t *trk)
@@ -555,7 +525,6 @@ cdi_track_push_back(cd_img_t *cdi, track_t *trk)
cdi->tracks_num++;
}
int
cdi_load_iso(cd_img_t *cdi, const char *filename)
{
@@ -569,11 +538,16 @@ cdi_load_iso(cd_img_t *cdi, const char *filename)
/* Data track (shouldn't there be a lead in track?). */
trk.file = bin_init(filename, &error);
if (error) {
if ((trk.file != NULL) && (trk.file->close != NULL))
trk.file->close(trk.file);
trk.file = viso_init(filename, &error);
if (error) {
if ((trk.file != NULL) && (trk.file->close != NULL))
trk.file->close(trk.file);
return 0;
}
}
trk.number = 1;
trk.track_number = 1;
trk.attr = DATA_TRACK;
@@ -615,7 +589,6 @@ cdi_load_iso(cd_img_t *cdi, const char *filename)
return 1;
}
static int
cdi_cue_get_buffer(char *str, char **line, int up)
{
@@ -626,8 +599,8 @@ cdi_cue_get_buffer(char *str, char **line, int up)
int space = 1;
/* Copy to local buffer until we have end of string or whitespace. */
while (! done) {
switch(*s) {
while (!done) {
switch (*s) {
case '\0':
if (quote) {
/* Ouch, unterminated string.. */
@@ -640,11 +613,12 @@ cdi_cue_get_buffer(char *str, char **line, int up)
quote ^= 1;
break;
case ' ': case '\t':
case ' ':
case '\t':
if (space)
break;
if (! quote) {
if (!quote) {
done = 1;
break;
}
@@ -659,7 +633,7 @@ cdi_cue_get_buffer(char *str, char **line, int up)
break;
}
if (! done)
if (!done)
s++;
}
*p = '\0';
@@ -669,7 +643,6 @@ cdi_cue_get_buffer(char *str, char **line, int up)
return 1;
}
static int
cdi_cue_get_keyword(char **dest, char **line)
{
@@ -682,7 +655,6 @@ cdi_cue_get_keyword(char **dest, char **line)
return success;
}
/* Get a string from the input line, handling quotes properly. */
static uint64_t
cdi_cue_get_number(char **line)
@@ -699,7 +671,6 @@ cdi_cue_get_number(char **line)
return num;
}
static int
cdi_cue_get_frame(uint64_t *frames, char **line)
{
@@ -720,7 +691,6 @@ cdi_cue_get_frame(uint64_t *frames, char **line)
return 1;
}
static int
cdi_cue_get_flags(track_t *cur, char **line)
{
@@ -741,7 +711,6 @@ cdi_cue_get_flags(track_t *cur, char **line)
return 1;
}
static int
cdi_add_track(cd_img_t *cdi, track_t *cur, uint64_t *shift, uint64_t prestart, uint64_t *total_pregap, uint64_t cur_pregap)
{
@@ -809,7 +778,6 @@ cdi_add_track(cd_img_t *cdi, track_t *cur, uint64_t *shift, uint64_t prestart, u
return 1;
}
int
cdi_load_cue(cd_img_t *cdi, const char *cuefile)
{
@@ -951,7 +919,7 @@ cdi_load_cue(cd_img_t *cdi, const char *cuefile)
index = cdi_cue_get_number(&line);
success = cdi_cue_get_frame(&frame, &line);
switch(index) {
switch (index) {
case 0:
prestart = frame;
break;
@@ -1006,9 +974,7 @@ cdi_load_cue(cd_img_t *cdi, const char *cuefile)
success = cdi_cue_get_frame(&cur_pregap, &line);
else if (!strcmp(command, "FLAGS"))
success = cdi_cue_get_flags(&trk, &line);
else if (!strcmp(command, "CATALOG") || !strcmp(command, "CDTEXTFILE") || !strcmp(command, "ISRC") ||
!strcmp(command, "PERFORMER") || !strcmp(command, "POSTGAP") || !strcmp(command, "REM") ||
!strcmp(command, "SONGWRITER") || !strcmp(command, "TITLE") || !strcmp(command, "")) {
else if (!strcmp(command, "CATALOG") || !strcmp(command, "CDTEXTFILE") || !strcmp(command, "ISRC") || !strcmp(command, "PERFORMER") || !strcmp(command, "POSTGAP") || !strcmp(command, "REM") || !strcmp(command, "SONGWRITER") || !strcmp(command, "TITLE") || !strcmp(command, "")) {
/* Ignored commands. */
success = 1;
} else {
@@ -1043,7 +1009,6 @@ cdi_load_cue(cd_img_t *cdi, const char *cuefile)
return 1;
}
int
cdi_has_data_track(cd_img_t *cdi)
{
@@ -1061,7 +1026,6 @@ cdi_has_data_track(cd_img_t *cdi)
return 0;
}
int
cdi_has_audio_track(cd_img_t *cdi)
{

1112
src/cdrom/cdrom_image_viso.c Normal file
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File diff suppressed because it is too large Load Diff

7
src/include/86box/cdrom_image_backend.h
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@@ -52,6 +52,7 @@ typedef struct {
char fn[260];
FILE *file;
void *priv;
} track_file_t;
typedef struct {
@@ -89,5 +90,11 @@ extern int cdi_load_cue(cd_img_t *cdi, const char *cuefile);
extern int cdi_has_data_track(cd_img_t *cdi);
extern int cdi_has_audio_track(cd_img_t *cdi);
/* Virtual ISO functions. */
extern int viso_read(void *p, uint8_t *buffer, uint64_t seek, size_t count);
extern uint64_t viso_get_length(void *p);
extern void viso_close(void *p);
extern track_file_t *viso_init(const char *dirname, int *error);
#endif /*CDROM_IMAGE_BACKEND_H*/

2
src/win/Makefile.mingw
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@@ -618,7 +618,7 @@ MINIVHDOBJ := cwalk.o libxml2_encoding.o minivhd_convert.o \
minivhd_struct_rw.o minivhd_util.o
CDROMOBJ := cdrom.o \
cdrom_image_backend.o cdrom_image.o
cdrom_image_backend.o cdrom_image_viso.o cdrom_image.o
ZIPOBJ := zip.o