mirror of
https://github.com/parasyte/alt64
synced 2024-11-02 00:05:03 -04:00
loadrom now using fatfs
fixes issues loading roms #14 #18 fixes loading fragmented files
This commit is contained in:
Robin Jones
parent
756fbc15ce
commit
8045aea0e0
344
src/main.c
344
src/main.c
@ -1301,182 +1301,202 @@ void loadrom(display_context_t disp, u8 *buff, int fast)
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clearScreen(disp);
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display_show(disp);
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if (!fast)
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printText("Restoring:", 3, 4, disp);
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//sleep(1000); //needless waiting :>
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printText("Loading ROM, Please wait:", 3, 4, disp);
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TRACE(disp, "timing done");
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u8 tmp[32];
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u8 filename[64];
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u8 ok = 0;
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sprintf(filename, "%s", buff);
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int swapped = 0;
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FRESULT result;
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FIL file;
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UINT bytesread = 0;
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result = f_open(&file, filename, FA_READ);
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TRACE(disp, buff);
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FatRecord rec_tmpf;
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//not needed any longer :>
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//file IS there, it's selected at this point
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ok = fatFindRecord(filename, &rec_tmpf, 0);
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TRACE(disp, "found");
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u8 resp = 0;
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resp = fatOpenFileByName(filename, 0); //err if not found ^^
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TRACE(disp, "opened");
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int mb = file.sec_available / 2048;
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int file_sectors = file.sec_available;
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int block_offset = 0;
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u32 cart_buff_offset = 0;
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u32 begin_sector = file.sector;
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//filesize -> readfile / 512
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int fsize = 512; //rom-headersize 4096 but the bootcode is not needed
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unsigned char headerdata[fsize]; //1*512
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resp = fatReadFile(&headerdata, fsize / 512); //1 cluster
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int sw_type = is_valid_rom(headerdata);
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if (sw_type != 0)
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if (result == FR_OK)
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{
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if (!fast)
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printText("byteswapped file", 3, -1, disp);
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int swapped = 0;
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int headerfsize = 512; //rom-headersize 4096 but the bootcode is not needed
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unsigned char headerdata[headerfsize]; //1*512
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int fsize = f_size(&file);
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int fsizeMB = fsize /1048576; //Bytes in a MB
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swapped = 1;
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swap_header(headerdata, 512);
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}
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result =
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f_read (
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&file, /* [IN] File object */
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&headerdata, /* [OUT] Buffer to store read data */
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headerfsize, /* [IN] Number of bytes to read */
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&bytesread /* [OUT] Number of bytes read */
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);
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//char 32-51 name
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unsigned char rom_name[32];
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result = f_close(&file);
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for (int u = 0; u < 19; u++)
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{
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if (u != 0)
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sprintf(rom_name, "%s%c", rom_name, headerdata[32 + u]);
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int sw_type = is_valid_rom(headerdata);
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if (sw_type != 0)
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{
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swapped = 1;
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swap_header(headerdata, 512);
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}
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if (fast != 1)
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{
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//char 32-51 name
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unsigned char rom_name[32];
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for (int u = 0; u < 19; u++)
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{
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if (u != 0)
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sprintf(rom_name, "%s%c", rom_name, headerdata[32 + u]);
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else
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sprintf(rom_name, "%c", headerdata[32 + u]);
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}
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//rom name
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sprintf(rom_name, "%s", trim(rom_name));
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printText(rom_name, 3, -1, disp);
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//rom size
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sprintf(rom_name, "Size: %iMB", fsizeMB);
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printText(rom_name, 3, -1, disp);
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//unique cart id for gametype
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unsigned char cartID_str[12];
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sprintf(cartID_str, "ID: %c%c%c%c", headerdata[0x3B], headerdata[0x3C], headerdata[0x3D], headerdata[0x3E]);
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printText(cartID_str, 3, -1, disp);
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}
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int cic, save;
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cic = get_cic(&headerdata[0x40]);
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unsigned char cartID_short[4];
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sprintf(cartID_short, "%c%c\0", headerdata[0x3C], headerdata[0x3D]);
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if (get_cic_save(cartID_short, &cic, &save))
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{
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if (fast != 1)
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{
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printText("found in db", 3, -1, disp);
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unsigned char save_type_str[12];
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sprintf(save_type_str, "Save: %s", saveTypeToExtension(save, ext_type));
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printText(save_type_str, 3, -1, disp);
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unsigned char cic_type_str[12];
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switch (cic)
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{
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case 4:
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sprintf(cic_type_str, "CIC: CIC-5101", cic);
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break;
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case 7:
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sprintf(cic_type_str, "CIC: CIC-5167", cic);
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break;
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default:
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sprintf(cic_type_str, "CIC: CIC-610%i", cic);
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break;
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}
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printText(cic_type_str, 3, -1, disp);
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}
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//thanks for the db :>
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//cart was found, use CIC and SaveRAM type
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}
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//new rom_config
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boot_cic = rom_config[1] + 1;
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boot_save = rom_config[2];
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force_tv = rom_config[3];
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cheats_on = rom_config[4];
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checksum_fix_on = rom_config[5];
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boot_country = rom_config[7]; //boot_block
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if (gbload == 1)
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boot_save = 1;
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// TRACE(disp, "Checking SD mode");
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// int resp = evd_isSDMode();
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// TRACEF(disp, "SD mode: %i", resp);
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// TRACE(disp, "Loading:");
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if (swapped == 1)
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{
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while (evd_isDmaBusy())
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;
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sleep(400); //Is this necessary?
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evd_mmcSetDmaSwap(1);
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TRACE(disp, "swapping on");
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}
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bytesread = 0;
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result = f_open(&file, filename, FA_READ);
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if (fsizeMB <= 32)
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{
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result =
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f_read (
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&file, /* [IN] File object */
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(void *)0xb0000000, /* [OUT] Buffer to store read data */
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fsize, /* [IN] Number of bytes to read */
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&bytesread /* [OUT] Number of bytes read */
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);
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}
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else
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sprintf(rom_name, "%c", headerdata[32 + u]);
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}
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//trim right spaces
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//romname=trimmed rom name for filename
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sprintf(rom_name, "%s", trim(rom_name));
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{
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result =
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f_read (
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&file, /* [IN] File object */
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(void *)0xb0000000, /* [OUT] Buffer to store read data */
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32 * 1048576, /* [IN] Number of bytes to read */
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&bytesread /* [OUT] Number of bytes read */
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);
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if(result == FR_OK)
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{
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result =
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f_read (
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&file, /* [IN] File object */
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(void *)0xb2000000, /* [OUT] Buffer to store read data */
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fsize - bytesread, /* [IN] Number of bytes to read */
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&bytesread /* [OUT] Number of bytes read */
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);
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}
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}
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if (!fast)
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printText(rom_name, 3, -1, disp);
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if(result == FR_OK)
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{
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printText("Rom loaded", 3, -1, disp);
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//if (debug) {
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// for (int i = 0; i < 4; i++)
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// {
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// u8 buff[16];
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// dma_read_s(buff, 0xb0000000 + 0x00100000 * i, 1);
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// unsigned char probe_str[12];
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// TRACEF(disp, "probe: %hhx", buff[0]);
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// }
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//}
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//unique cart id for gametype
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// sleep(1000);
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sprintf(cartID, "%c%c%c%c", headerdata[0x3B], headerdata[0x3C], headerdata[0x3D], headerdata[0x3E]);
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int cic, save;
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cic = get_cic(&headerdata[0x40]);
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unsigned char cartID_short[4];
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sprintf(cartID_short, "%c%c\0", headerdata[0x3C], headerdata[0x3D]);
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if (get_cic_save(cartID_short, &cic, &save))
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{
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if (!fast)
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printText("found in db", 3, -1, disp);
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//thanks for the db :>
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// cart was found, use CIC and SaveRAM type
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}
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TRACEF(disp, "Info: cic=%i save=%i", cic, save);
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//new rom_config
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boot_cic = rom_config[1] + 1;
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boot_save = rom_config[2];
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force_tv = rom_config[3];
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cheats_on = rom_config[4];
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checksum_fix_on = rom_config[5];
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boot_country = rom_config[7]; //boot_block
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if (gbload == 1)
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boot_save = 1;
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else if (resp) //TODO: if response is certain ones we should show the error and stop the boot...
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{
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sprintf(tmp, "Response: %i", resp);
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printText(tmp, 3, -1, disp);
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sleep(2000);
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}
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TRACE(disp, "Checking SD mode");
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resp = evd_isSDMode();
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TRACEF(disp, "SD mode: %i", resp);
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TRACEF(disp, "Size: %i", file.sec_available);
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TRACEF(disp, "File sector: %i", file.sector);
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TRACE(disp, "Loading:");
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sleep(10);
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if (swapped == 1)
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{
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while (evd_isDmaBusy())
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;
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sleep(400);
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evd_mmcSetDmaSwap(1);
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TRACE(disp, "swapping on");
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sleep(10);
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}
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if (!fast)
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printText("loading please wait...", 3, -1, disp);
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else
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printText("loading please wait...", 3, 4, disp);
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sleep(10);
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int lower_half = 2048 * 32;
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if (mb <= 32)
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{
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resp = sdRead(begin_sector, (void *)0xb0000000, file_sectors); //2048 cluster 1Mb
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}
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else
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{
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resp = sdRead(begin_sector, (void *)0xb0000000, lower_half);
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resp = sdRead(begin_sector + lower_half, (void *)0xb2000000, file_sectors - lower_half);
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}
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if (resp)
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{
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TRACEF(disp, "mmcToCart: %i", resp);
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}
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//if (debug) {
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for (int i = 0; i < 4; i++)
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{
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u8 buff[16];
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dma_read_s(buff, 0xb0000000 + 0x00100000 * i, 1);
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TRACEF(disp, "probe: %hhx", buff[0]);
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}
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//}
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if (!fast)
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{
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sleep(200);
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printText(" ", 3, -1, disp);
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printText("(C-UP to activate cheats)", 3, -1, disp);
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printText("(C-RIGHT to force menu tv mode)", 3, -1, disp);
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printText("done: PRESS START", 3, -1, disp);
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}
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else
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{
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bootRom(disp, 1);
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if (!fast)
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{
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printText(" ", 3, -1, disp);
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printText("(C-UP to activate cheats)", 3, -1, disp);
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printText("(C-RIGHT to force menu tv mode)", 3, -1, disp);
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printText("done: PRESS START", 3, -1, disp);
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}
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else
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{
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bootRom(disp, 1);
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}
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}
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else
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{
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printText("file open error", 3, -1, disp);
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}
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}
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}
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