--- /dev/null
+/*
+ * Human-readable config file management for PicoDrive
+ * (c)
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include "config.h"
+#include "menu.h"
+#include "emu.h"
+#include <Pico/Pico.h>
+
+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;
+}
+
notaz.gp2x.de / picodrive.git / commitdiff