From: ToadKing Date: Tue, 7 May 2013 21:17:02 +0000 (-0400) Subject: add support for mednafen-style .m3u files for multi-disc games X-Git-Tag: r24l~941 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1bd06362a0116b4c7445ab49ca582c6b5c954cb;p=pcsx_rearmed.git add support for mednafen-style .m3u files for multi-disc games --- diff --git a/frontend/libretro.c b/frontend/libretro.c index f44cc28b..b8a5b77b 100644 --- a/frontend/libretro.c +++ b/frontend/libretro.c @@ -251,7 +251,7 @@ void retro_get_system_info(struct retro_system_info *info) memset(info, 0, sizeof(*info)); info->library_name = "PCSX-ReARMed"; info->library_version = "r19"; - info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn"; + info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn|m3u"; info->need_fullpath = true; } @@ -514,9 +514,69 @@ static struct retro_disk_control_callback disk_control = { .add_image_index = disk_add_image_index, }; +// just in case, maybe a win-rt port in the future? +#ifdef _WIN32 +#define SLASH '\\' +#else +#define SLASH '/' +#endif + +static char base_dir[PATH_MAX]; + +static bool read_m3u(const char *file) +{ + char line[PATH_MAX]; + char name[PATH_MAX]; + size_t i = 0; + FILE *f = fopen(file, "r"); + if (!f) + return false; + + while (fgets(line, sizeof(line), f) && i < sizeof(disks) / sizeof(disks[0])) { + if (line[0] == '#') + continue; + char *carrige_return = strchr(line, '\r'); + if (carrige_return) + *carrige_return = '\0'; + char *newline = strchr(line, '\n'); + if (newline) + *newline = '\0'; + + if (line[0] != '\0') + { + snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line); + disks[i++].fname = strdup(name); + } + } + + fclose(f); + return (i != 0); +} + +static void extract_directory(char *buf, const char *path, size_t size) +{ + char *base; + strncpy(buf, path, size - 1); + buf[size - 1] = '\0'; + + base = strrchr(buf, '/'); + if (!base) + base = strrchr(buf, '\\'); + + if (base) + *base = '\0'; + else + { + buf[0] = '.'; + buf[1] = '\0'; + } +} + bool retro_load_game(const struct retro_game_info *info) { size_t i; + bool is_m3u = (strcasestr(info->path, ".m3u") != NULL); + #ifdef FRONTEND_SUPPORTS_RGB565 enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { @@ -543,7 +603,16 @@ bool retro_load_game(const struct retro_game_info *info) } disk_current_index = 0; - disks[0].fname = strdup(info->path); + extract_directory(base_dir, info->path, sizeof(base_dir)); + + if (is_m3u) { + if (!read_m3u(info->path)) { + SysPrintf("failed to read m3u file\n"); + return false; + } + } + else + disks[0].fname = strdup(info->path); set_cd_image(disks[0].fname); @@ -578,9 +647,11 @@ bool retro_load_game(const struct retro_game_info *info) emu_on_new_cd(0); // multidisk images - for (i = 1; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++) { - disks[i].fname = strdup(info->path); - disks[i].internal_index = i; + if (!is_m3u) { + for (i = 1; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++) { + disks[i].fname = strdup(info->path); + disks[i].internal_index = i; + } } return true;