mirror of
https://github.com/RaySollium99/libpicofe.git
synced 2025-09-05 06:47:45 -04:00
ISO loading, menus, LEDs
git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@16 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz
parent
5111820c37
commit
daf91588bd
4 changed files with 312 additions and 67 deletions
238
gp2x/emu.c
238
gp2x/emu.c
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@ -96,29 +96,131 @@ static int try_rfn_cut(void)
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return 0;
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}
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static void get_ext(char *ext)
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static void get_ext(char *file, char *ext)
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{
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char *p;
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p = romFileName + strlen(romFileName) - 4;
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if (p < romFileName) p = romFileName;
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p = file + strlen(file) - 4;
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if (p < file) p = file;
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strncpy(ext, p, 4);
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ext[4] = 0;
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strlwr(ext);
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}
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char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };
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char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };
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char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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extern char **g_argv;
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int find_bios(int region, char **bios_file)
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{
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static char bios_path[1024];
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int i, j, count;
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char **files;
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FILE *f = NULL;
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if (region == 4) { // US
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files = biosfiles_us;
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count = sizeof(biosfiles_us) / sizeof(char *);
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} else if (region == 8) { // EU
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files = biosfiles_eu;
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count = sizeof(biosfiles_eu) / sizeof(char *);
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} else if (region == 1 || region == 2) {
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files = biosfiles_jp;
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count = sizeof(biosfiles_jp) / sizeof(char *);
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} else {
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return 0;
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}
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for (i = 0; i < count; i++)
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{
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strncpy(bios_path, g_argv[0], 1023);
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bios_path[1024-32] = 0;
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for (j = strlen(bios_path); j > 0; j--)
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if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }
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strcat(bios_path, files[i]);
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strcat(bios_path, ".bin");
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f = fopen(bios_path, "rb");
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if (f) break;
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bios_path[strlen(bios_path) - 4] = 0;
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strcat(bios_path, ".zip");
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f = fopen(bios_path, "rb");
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if (f) break;
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}
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if (f) {
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printf("using bios: %s\n", bios_path);
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fclose(f);
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if (bios_file) *bios_file = bios_path;
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return 1;
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} else {
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sprintf(menuErrorMsg, "no %s BIOS files found, read docs",
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region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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printf("%s\n", menuErrorMsg);
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return 0;
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}
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}
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/* checks if romFileName points to valid MegaCD image
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* if so, checks for suitable BIOS */
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static int cd_check(char *ext, char **bios_file)
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{
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unsigned char buf[32];
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FILE *cd_f;
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int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe
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cd_f = fopen(romFileName, "rb");
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if (!cd_f) return 0; // let the upper level handle this
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if (fread(buf, 1, 32, cd_f) != 32) {
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fclose(cd_f);
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return 0;
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}
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if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)
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if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)
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if (type == 0) {
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fclose(cd_f);
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return 0;
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}
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/* it seems we have a CD image here. Try to detect region and load a suitable BIOS now.. */
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fseek(cd_f, (type == 1) ? 0x100 : 0x110, SEEK_SET);
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fread(buf, 1, 1, cd_f);
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fclose(cd_f);
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if (buf[0] == 0x64) region = 4; // EU
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if (buf[0] == 0xa1) region = 1; // JAP
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printf("detected %s Sega/Mega CD image with %s region\n",
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type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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if (PicoRegionOverride) {
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region = PicoRegionOverride;
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printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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}
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if(find_bios(region, bios_file))
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return type; // CD and BIOS detected
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return -1; // CD detected but load failed
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}
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int emu_ReloadRom(void)
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{
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unsigned int rom_size = 0;
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char *used_rom_name = romFileName;
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char ext[5];
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FILE *rom;
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int ret;
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int ret, cd_state;
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printf("emu_ReloadRom(%s)\n", romFileName);
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// detect wrong extensions
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get_ext(ext);
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get_ext(romFileName, ext);
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// detect wrong extensions
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if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
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sprintf(menuErrorMsg, "Not a ROM selected.");
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return 0;
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@ -162,10 +264,22 @@ int emu_ReloadRom(void)
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sprintf(menuErrorMsg, "Could't find a ROM for movie.");
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return 0;
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}
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get_ext(ext);
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get_ext(romFileName, ext);
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}
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rom = fopen(romFileName, "rb");
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// check for MegaCD image
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cd_state = cd_check(ext, &used_rom_name);
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if (cd_state > 0) {
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PicoMCD |= 1;
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get_ext(used_rom_name, ext);
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} else if (cd_state == -1) {
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// bios_help() ?
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return 0;
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} else {
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PicoMCD &= ~1;
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}
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rom = fopen(used_rom_name, "rb");
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if(!rom) {
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sprintf(menuErrorMsg, "Failed to open rom.");
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return 0;
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@ -180,9 +294,9 @@ int emu_ReloadRom(void)
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// zipfile support
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if(!strcasecmp(ext, ".zip")) {
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fclose(rom);
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ret = CartLoadZip(romFileName, &rom_data, &rom_size);
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ret = CartLoadZip(used_rom_name, &rom_data, &rom_size);
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if(ret) {
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if (ret == 4) strcpy(menuErrorMsg, "No ROMs in zip found.");
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if (ret == 4) strcpy(menuErrorMsg, "No ROMs found in zip.");
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else sprintf(menuErrorMsg, "Unzip failed with code %i", ret);
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printf("%s\n", menuErrorMsg);
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return 0;
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@ -206,16 +320,28 @@ int emu_ReloadRom(void)
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return 0;
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}
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// load config for this ROM (do this before insert to get correct region)
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ret = emu_ReadConfig(1);
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if (!ret)
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emu_ReadConfig(0);
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printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
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if(PicoCartInsert(rom_data, rom_size)) {
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sprintf(menuErrorMsg, "Failed to load ROM.");
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return 0;
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}
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// load config for this ROM
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ret = emu_ReadConfig(1);
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if (!ret)
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emu_ReadConfig(0);
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Pico.m.frame_count = 0;
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// insert CD if it was detected
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if (cd_state > 0) {
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ret = Insert_CD(romFileName, cd_state == 2);
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if (ret != 0) {
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sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");
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printf("%s\n", menuErrorMsg);
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return 0;
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}
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}
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// emu_ReadConfig() might have messed currentConfig.lastRomFile
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strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);
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@ -253,8 +379,6 @@ int emu_ReloadRom(void)
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if(currentConfig.EmuOpt & 1)
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emu_SaveLoadGame(1, 1);
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Pico.m.frame_count = 0;
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return 1;
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}
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@ -440,19 +564,14 @@ void osd_text(int x, int y, char *text)
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int len = strlen(text)*8;
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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int *p, i, h, black, white;
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if (PicoOpt&0x10) {
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black = 0x40404040; white = 0x41;
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} else {
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black = 0xe0e0e0e0; white = 0xf0;
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}
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int *p, i, h;
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x &= ~3; // align x
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len = (len+3) >> 2;
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for (h = 0; h < 8; h++) {
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p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));
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for (i = len; i; i--, p++) *p = black;
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for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
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}
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gp2x_text_out8_2(x, y, text, white);
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gp2x_text_out8_2(x, y, text, 0xf0);
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} else {
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int *p, i, h;
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x &= ~1; // align x
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@ -465,6 +584,33 @@ void osd_text(int x, int y, char *text)
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}
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}
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static void cd_leds(void)
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{
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static int old_reg = 0;
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if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change
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old_reg = Pico_mcd->s68k_regs[0];
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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// 8-bit modes
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unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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*(unsigned int *)((char *)gp2x_screen + 320*2+306) =
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*(unsigned int *)((char *)gp2x_screen + 320*3+306) =
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*(unsigned int *)((char *)gp2x_screen + 320*4+306) = col_g;
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*(unsigned int *)((char *)gp2x_screen + 320*2+312) =
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*(unsigned int *)((char *)gp2x_screen + 320*3+312) =
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*(unsigned int *)((char *)gp2x_screen + 320*4+312) = col_r;
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} else {
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// 16-bit modes
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unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+306);
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unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
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unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
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*p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
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*p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
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*p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
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}
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}
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static int EmuScan16(unsigned int num, void *sdata)
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{
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if (!(Pico.video.reg[1]&8)) num += 8;
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@ -486,6 +632,8 @@ static void (*vidCpyM2)(void *dest, void *src) = NULL;
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static void blit(char *fps, char *notice)
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{
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int emu_opt = currentConfig.EmuOpt;
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if (PicoOpt&0x10) {
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// 8bit fast renderer
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if (Pico.m.dirtyPal) {
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@ -495,7 +643,7 @@ static void blit(char *fps, char *notice)
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gp2x_video_setpalette(localPal, 0x40);
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}
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vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);
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} else if (!(currentConfig.EmuOpt&0x80)) {
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} else if (!(emu_opt&0x80)) {
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// 8bit accurate renderer
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if (Pico.m.dirtyPal) {
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Pico.m.dirtyPal = 0;
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@ -504,6 +652,8 @@ static void blit(char *fps, char *notice)
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vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);
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localPal[0xc0] = 0x0000c000;
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localPal[0xd0] = 0x00c00000;
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localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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localPal[0xf0] = 0x00ffffff;
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gp2x_video_setpalette(localPal, 0x100);
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@ -520,8 +670,10 @@ static void blit(char *fps, char *notice)
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}
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if (notice) osd_text(4, 232, notice);
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if (currentConfig.EmuOpt & 2)
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if (emu_opt & 2)
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osd_text(osd_fps_x, 232, fps);
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if ((emu_opt & 0x400) && (PicoMCD & 1))
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cd_leds();
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//gp2x_video_wait_vsync();
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gp2x_video_flip();
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@ -543,18 +695,14 @@ static void blit(char *fps, char *notice)
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// clears whole screen or just the notice area (in all buffers)
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static void clearArea(int full)
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{
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if (PicoOpt&0x10) {
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// 8bit fast renderer
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if (full) gp2x_memset_all_buffers(0, 0x40, 320*240);
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else gp2x_memset_all_buffers(320*232, 0x40, 320*8);
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} else if (currentConfig.EmuOpt&0x80) {
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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// 8-bit renderers
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if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
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else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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} else {
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// 16bit accurate renderer
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if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
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else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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} else {
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// 8bit accurate renderer
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if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
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else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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}
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}
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@ -562,28 +710,28 @@ static void clearArea(int full)
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static void vidResetMode(void)
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{
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if (PicoOpt&0x10) {
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localPal[0x40] = 0;
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localPal[0x41] = 0x00ffffff;
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gp2x_video_changemode(8);
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gp2x_video_setpalette(localPal, 0x42);
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gp2x_memset_all_buffers(0, 0x40, 320*240);
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gp2x_video_flip();
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} else if (currentConfig.EmuOpt&0x80) {
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gp2x_video_changemode(15);
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PicoDrawSetColorFormat(1);
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PicoScan = EmuScan16;
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PicoScan(0, 0);
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} else {
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localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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localPal[0xf0] = 0x00ffffff;
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gp2x_video_changemode(8);
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gp2x_video_setpalette(localPal, 0x100);
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gp2x_memset_all_buffers(0, 0xe0, 320*240);
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gp2x_video_flip();
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PicoDrawSetColorFormat(2);
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PicoScan = EmuScan8;
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PicoScan(0, 0);
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}
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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// setup pal for 8-bit modes
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localPal[0xc0] = 0x0000c000; // MCD LEDs
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localPal[0xd0] = 0x00c00000;
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localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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localPal[0xf0] = 0x00ffffff;
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gp2x_video_setpalette(localPal, 0x100);
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gp2x_memset_all_buffers(0, 0xe0, 320*240);
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gp2x_video_flip();
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}
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Pico.m.dirtyPal = 1;
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// reset scaling
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gp2x_video_RGB_setscaling((PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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