From: notaz Date: Thu, 20 Mar 2008 21:33:15 +0000 (+0000) Subject: files for cfg stuff X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c51bd2feb382b1d1f4bd8aaeaf128e04bd0e147b;p=libpicofe.git files for cfg stuff git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@391 be3aeb3a-fb24-0410-a615-afba39da0efa --- diff --git a/common/config.c b/common/config.c new file mode 100644 index 0000000..325baf1 --- /dev/null +++ b/common/config.c @@ -0,0 +1,529 @@ +/* + * Human-readable config file management for PicoDrive + * (c) + */ + +#include +#include +#include "config.h" +#include "menu.h" +#include "emu.h" +#include + +extern menu_entry opt_entries[]; +extern menu_entry opt2_entries[]; +extern menu_entry cdopt_entries[]; +extern const int opt_entry_count; +extern const int opt2_entry_count; +extern const int cdopt_entry_count; + +static menu_entry *cfg_opts[] = { opt_entries, opt2_entries, cdopt_entries }; +static const int *cfg_opt_counts[] = { &opt_entry_count, &opt2_entry_count, &cdopt_entry_count }; + +#define NL "\n" + + +static int seek_sect(FILE *f, const char *section) +{ + char line[128], *tmp; + int len; + + len = strlen(section); + // seek to the section needed + while (!feof(f)) + { + tmp = fgets(line, sizeof(line), f); + if (tmp == NULL) break; + + if (line[0] != '[') continue; // not section start + if (strncmp(line + 1, section, len) == 0 && line[len+1] == ']') + return 1; // found it + } + + return 0; +} + + +static void custom_write(FILE *f, const menu_entry *me) +{ + char *str, str24[24]; + + switch (me->id) + { + case MA_OPT_RENDERER: + if (!((defaultConfig.s_PicoOpt^PicoOpt)&0x10) && + !((defaultConfig.EmuOpt^currentConfig.EmuOpt)&0x80)) return; + if (PicoOpt&0x10) + str = "8bit fast"; + else if (currentConfig.EmuOpt&0x80) + str = "16bit accurate"; + else + str = "8bit accurate"; + fprintf(f, "Renderer = %s", str); + break; + + case MA_OPT_SCALING: + if (defaultConfig.scaling == currentConfig.scaling) return; + switch (currentConfig.scaling) { + default: str = "OFF"; break; + case 1: str = "hw horizontal"; break; + case 2: str = "hw horiz. + vert."; break; + case 3: str = "sw horizontal"; break; + } + fprintf(f, "Scaling = %s", str); + break; + case MA_OPT_FRAMESKIP: + if (defaultConfig.Frameskip == currentConfig.Frameskip) return; + if (currentConfig.Frameskip < 0) + strcpy(str24, "Auto"); + else sprintf(str24, "%i", currentConfig.Frameskip); + fprintf(f, "Frameskip = %s", str24); + break; + case MA_OPT_SOUND_QUALITY: + if (!((defaultConfig.s_PicoOpt^PicoOpt)&8) && + defaultConfig.s_PsndRate == PsndRate) return; + str = (PicoOpt&0x08)?"stereo":"mono"; + fprintf(f, "Sound Quality = %i %s", PsndRate, str); + break; + case MA_OPT_REGION: + if (defaultConfig.s_PicoRegion == PicoRegionOverride && + defaultConfig.s_PicoAutoRgnOrder == PicoAutoRgnOrder) return; + fprintf(f, "Region = %s", me_region_name(PicoRegionOverride, PicoAutoRgnOrder)); + break; + case MA_OPT_CONFIRM_STATES: + if (!((defaultConfig.EmuOpt^currentConfig.EmuOpt)&(5<<9))) return; + switch ((currentConfig.EmuOpt >> 9) & 5) { + default: str = "OFF"; break; + case 1: str = "writes"; break; + case 4: str = "loads"; break; + case 5: str = "both"; break; + } + fprintf(f, "Confirm savestate = %s", str); + break; + case MA_OPT_CPU_CLOCKS: + if (defaultConfig.CPUclock == currentConfig.CPUclock) return; + fprintf(f, "GP2X CPU clocks = %i", currentConfig.CPUclock); + break; + case MA_OPT2_GAMMA: + if (defaultConfig.gamma == currentConfig.gamma) return; + fprintf(f, "Gamma correction = %.3f", (double)currentConfig.gamma / 100.0); + break; + case MA_OPT2_SQUIDGEHACK: + if (!((defaultConfig.EmuOpt^currentConfig.EmuOpt)&0x0010)) return; + fprintf(f, "Squidgehack = %i", (currentConfig.EmuOpt&0x0010)>>4); + break; + case MA_CDOPT_READAHEAD: + if (defaultConfig.s_PicoCDBuffers == PicoCDBuffers) return; + sprintf(str24, "%i", PicoCDBuffers * 2); + fprintf(f, "ReadAhead buffer = %s", str24); + break; + + default: + printf("unhandled custom_write: %i\n", me->id); + return; + } + fprintf(f, NL); +} + + +int config_writesect(const char *fname, const char *section) +{ + FILE *fo = NULL, *fn = NULL; // old and new + menu_entry *me; + int t, i, tlen, ret; + char line[128], *tmp; + + if (section != NULL) + { + fo = fopen(fname, "r"); + if (fo == NULL) { + fn = fopen(fname, "w"); + goto write; + } + + ret = seek_sect(fo, section); + if (!ret) { + // sect not found, we can simply append + fclose(fo); fo = NULL; + fn = fopen(fname, "a"); + goto write; + } + + // use 2 files.. + fclose(fo); + rename(fname, "tmp.cfg"); + fo = fopen("tmp.cfg", "r"); + fn = fopen(fname, "w"); + if (fo == NULL || fn == NULL) goto write; + + // copy everything until sect + tlen = strlen(section); + while (!feof(fo)) + { + tmp = fgets(line, sizeof(line), fo); + if (tmp == NULL) break; + + if (line[0] == '[' && strncmp(line + 1, section, tlen) == 0 && line[tlen+1] == ']') + break; + fputs(line, fn); + } + + // now skip to next sect + while (!feof(fo)) + { + tmp = fgets(line, sizeof(line), fo); + if (tmp == NULL) break; + if (line[0] == '[') { + fseek(fo, -strlen(line), SEEK_CUR); + break; + } + } + if (feof(fo)) + { + fclose(fo); fo = NULL; + remove("tmp.cfg"); + } + } + else + { + fn = fopen(fname, "w"); + } + +write: + if (fn == NULL) { + if (fo) fclose(fo); + return -1; + } + if (section != NULL) + fprintf(fn, "[%s]" NL, section); + + for (t = 0; t < sizeof(cfg_opts) / sizeof(cfg_opts[0]); t++) + { + me = cfg_opts[t]; + tlen = *(cfg_opt_counts[t]); + for (i = 0; i < tlen; i++, me++) + { + if (!me->need_to_save) continue; + if ((me->beh != MB_ONOFF && me->beh != MB_RANGE) || me->name == NULL) + custom_write(fn, me); + else if (me->beh == MB_ONOFF) + fprintf(fn, "%s = %i" NL, me->name, (*(int *)me->var & me->mask) ? 1 : 0); + else if (me->beh == MB_RANGE) + fprintf(fn, "%s = %i" NL, me->name, *(int *)me->var); + } + } + fprintf(fn, NL); + + if (fo != NULL) + { + // copy whatever is left + while (!feof(fo)) + { + tmp = fgets(line, sizeof(line), fo); + if (tmp == NULL) break; + + fputs(line, fn); + } + fclose(fo); + remove("tmp.cfg"); + } + + fclose(fn); + return 0; +} + + +static void mystrip(char *str) +{ + int i, len; + + len = strlen(str); + for (i = 0; i < len; i++) + if (str[i] != ' ') break; + if (i > 0) memmove(str, str + i, len - i + 1); + len = strlen(str); + for (i = len - 1; i >= 0; i--) + if (str[i] != ' ') break; + str[i+1] = 0; +} + + +int config_writelrom(const char *fname) +{ + char line[128], *tmp, *optr = NULL; + char *old_data = NULL; + int size; + FILE *f; + + if (strlen(currentConfig.lastRomFile) == 0) return 0; + + f = fopen(fname, "r"); + if (f != NULL) + { + fseek(f, 0, SEEK_END); + size = ftell(f); + fseek(f, 0, SEEK_SET); + old_data = malloc(size + size/8); + if (old_data != NULL) + { + optr = old_data; + while (!feof(f)) + { + tmp = fgets(line, sizeof(line), f); + if (tmp == NULL) break; + mystrip(line); + if (strncasecmp(line, "LastUsedROM", 11) == 0) + continue; + sprintf(optr, "%s", line); + optr += strlen(optr); + } + } + fclose(f); + } + + f = fopen(fname, "w"); + if (f == NULL) return -1; + + if (old_data != NULL) { + fwrite(old_data, 1, optr - old_data, f); + free(old_data); + } + fprintf(f, "LastUsedROM = %s" NL, currentConfig.lastRomFile); + fclose(f); + return 0; +} + + +static int custom_read(menu_entry *me, const char *var, const char *val) +{ + char *tmp; + int tmpi; + + switch (me->id) + { + case MA_OPT_RENDERER: + if (strcasecmp(var, "Renderer") != 0) return 0; + if (strcasecmp(val, "8bit fast") == 0) { + PicoOpt |= 0x10; + } + else if (strcasecmp(val, "16bit accurate") == 0) { + PicoOpt &= ~0x10; + currentConfig.EmuOpt |= 0x80; + } + else if (strcasecmp(val, "8bit accurate") == 0) { + PicoOpt &= ~0x10; + currentConfig.EmuOpt &= ~0x80; + } + else + return 0; + return 1; + + case MA_OPT_SCALING: + if (strcasecmp(var, "Scaling") != 0) return 0; + if (strcasecmp(val, "OFF") == 0) { + currentConfig.scaling = 0; + } else if (strcasecmp(val, "hw horizontal") == 0) { + currentConfig.scaling = 1; + } else if (strcasecmp(val, "hw horiz. + vert.") == 0) { + currentConfig.scaling = 2; + } else if (strcasecmp(val, "sw horizontal") == 0) { + currentConfig.scaling = 3; + } else + return 0; + return 1; + + case MA_OPT_FRAMESKIP: + if (strcasecmp(var, "Frameskip") != 0) return 0; + if (strcasecmp(val, "Auto") == 0) + currentConfig.Frameskip = -1; + else currentConfig.Frameskip = atoi(val); + return 1; + + case MA_OPT_SOUND_QUALITY: + if (strcasecmp(var, "Sound Quality") != 0) return 0; + PsndRate = strtoul(val, &tmp, 10); + if (PsndRate < 8000 || PsndRate > 44100) + PsndRate = 22050; + while (*tmp == ' ') tmp++; + if (strcasecmp(tmp, "stereo") == 0) { + PicoOpt |= 8; + } else if (strcasecmp(tmp, "mono") == 0) { + PicoOpt &= ~8; + } else + return 0; + return 1; + + case MA_OPT_REGION: + if (strcasecmp(var, "Region") != 0) return 0; + if (strncasecmp(val, "Auto: ", 6) == 0) + { + const char *p = val + 5, *end = val + strlen(val); + int i; + PicoRegionOverride = PicoAutoRgnOrder = 0; + for (i = 0; p < end && i < 3; p += 3, i++) { + if (p[0] == 'J' && p[1] == 'P') { + PicoAutoRgnOrder |= 1 << (i*4); + } else if (p[0] == 'U' && p[1] == 'S') { + PicoAutoRgnOrder |= 4 << (i*4); + } else if (p[0] == 'E' && p[1] == 'U') { + PicoAutoRgnOrder |= 8 << (i*4); + } + } + } + else if (strcasecmp(val, "Auto") == 0) { + PicoRegionOverride = 0; + } else if (strcasecmp(val, "Japan NTSC") == 0) { + PicoRegionOverride = 1; + } else if (strcasecmp(val, "Japan PAL") == 0) { + PicoRegionOverride = 2; + } else if (strcasecmp(val, "USA") == 0) { + PicoRegionOverride = 4; + } else if (strcasecmp(val, "Europe") == 0) { + PicoRegionOverride = 8; + } else + return 0; + return 1; + + case MA_OPT_CONFIRM_STATES: + if (strcasecmp(var, "Confirm savestate") != 0) return 0; + if (strcasecmp(val, "OFF") == 0) { + currentConfig.EmuOpt &= 5<<9; + } else if (strcasecmp(val, "writes") == 0) { + currentConfig.EmuOpt &= 5<<9; + currentConfig.EmuOpt |= 1<<9; + } else if (strcasecmp(val, "loads") == 0) { + currentConfig.EmuOpt &= 5<<9; + currentConfig.EmuOpt |= 4<<9; + } else if (strcasecmp(val, "both") == 0) { + currentConfig.EmuOpt &= 5<<9; + currentConfig.EmuOpt |= 5<<9; + } else + return 0; + return 1; + + case MA_OPT_CPU_CLOCKS: + if (strcasecmp(var, "GP2X CPU clocks") != 0) return 0; + currentConfig.CPUclock = atoi(val); + return 1; + + case MA_OPT2_GAMMA: + if (strcasecmp(var, "Gamma correction") != 0) return 0; + currentConfig.gamma = (int) (atof(val) * 100.0); + return 1; + + case MA_OPT2_SQUIDGEHACK: + if (strcasecmp(var, "Squidgehack") != 0) return 0; + tmpi = atoi(val); + if (tmpi) *(int *)me->var |= me->mask; + else *(int *)me->var &= ~me->mask; + return 1; + + case MA_CDOPT_READAHEAD: + if (strcasecmp(var, "ReadAhead buffer") != 0) return 0; + PicoCDBuffers = atoi(val) / 2; + return 1; + + default: + if (strcasecmp(var, "LastUsedROM") == 0) { + tmpi = sizeof(currentConfig.lastRomFile); + strncpy(currentConfig.lastRomFile, val, tmpi); + currentConfig.lastRomFile[tmpi-1] = 0; + return 1; + } + printf("unhandled custom_read: %i\n", me->id); + return 0; + } +} + + +static void parse(const char *var, const char *val) +{ + menu_entry *me; + int t, i, tlen, tmp, ret = 0; + + for (t = 0; t < sizeof(cfg_opts) / sizeof(cfg_opts[0]) && ret == 0; t++) + { + me = cfg_opts[t]; + tlen = *(cfg_opt_counts[t]); + for (i = 0; i < tlen && ret == 0; i++, me++) + { + if (!me->need_to_save) continue; + if (me->name != NULL) { + if (strcasecmp(var, me->name) != 0) continue; // surely not this one + if (me->beh == MB_ONOFF) { + tmp = atoi(val); + if (tmp) *(int *)me->var |= me->mask; + else *(int *)me->var &= ~me->mask; + return; + } else if (me->beh == MB_RANGE) { + tmp = atoi(val); + if (tmp < me->min) tmp = me->min; + if (tmp > me->max) tmp = me->max; + *(int *)me->var = tmp; + return; + } + } + ret = custom_read(me, var, val); + } + } + if (!ret) printf("config_readsect: unhandled var: %s\n", var); +} + + +int config_readsect(const char *fname, const char *section) +{ + char line[128], *var, *val, *tmp; + FILE *f = fopen(fname, "r"); + int len, i, ret; + + if (f == NULL) return 0; + + if (section != NULL) + { + ret = seek_sect(f, section); + if (!ret) { + printf("config_readsect: %s: missing section [%s]\n", fname, section); + fclose(f); + return -1; + } + } + + while (!feof(f)) + { + tmp = fgets(line, sizeof(line), f); + if (tmp == NULL) break; + + if (line[0] == '[') break; // other section + + // strip comments, linefeed, spaces.. + len = strlen(line); + for (i = 0; i < len; i++) + if (line[i] == '#' || line[i] == '\r' || line[i] == '\n') { line[i] = 0; break; } + mystrip(line); + len = strlen(line); + if (len <= 0) continue; + + // get var and val + for (i = 0; i < len; i++) + if (line[i] == '=') break; + if (i >= len || strchr(&line[i+1], '=') != NULL) { + printf("config_readsect: can't parse: %s\n", line); + continue; + } + line[i] = 0; + var = line; + val = &line[i+1]; + mystrip(var); + mystrip(val); + if (strlen(var) == 0 || strlen(val) == 0) { + printf("config_readsect: something's empty: \"%s\" = \"%s\"\n", var, val); + continue; + } + + parse(var, val); + } + + fclose(f); + return 0; +} + diff --git a/common/config.h b/common/config.h new file mode 100644 index 0000000..8fab6d4 --- /dev/null +++ b/common/config.h @@ -0,0 +1,6 @@ +#include + +int config_writesect(const char *fname, const char *section); +int config_writelrom(const char *fname); +int config_readsect(const char *fname, const char *section); +