Mercurial > vba-clojure
diff src/common/Util.cpp @ 19:5e8e5083da94
brought in common and gba, fixed problems with outdated Makefile.am files in both of these packages
| author | Robert McIntyre <rlm@mit.edu> |
|---|---|
| date | Sun, 04 Mar 2012 14:33:52 -0600 |
| parents | f9f4f1b99eed |
| children | f94fa48624d0 |
line wrap: on
line diff
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/common/Util.cpp Sun Mar 04 14:33:52 2012 -0600 1.3 @@ -0,0 +1,1400 @@ 1.4 +#include <cstdio> 1.5 +#include <cstdlib> 1.6 +#include <cstring> 1.7 +#include <zlib.h> 1.8 + 1.9 +extern "C" { 1.10 +#include <png.h> 1.11 +} 1.12 + 1.13 +#if 0 1.14 +#include "unrarlib.h" 1.15 +#endif 1.16 + 1.17 +#include "unzip.h" 1.18 + 1.19 +#include "../NLS.h" 1.20 +#include "System.h" 1.21 +#include "Util.h" 1.22 +#include "../gba/Flash.h" 1.23 +#include "../gba/RTC.h" 1.24 + 1.25 +extern "C" { 1.26 +#include "memgzio.h" 1.27 +} 1.28 + 1.29 +#ifndef _MSC_VER 1.30 +#define _stricmp strcasecmp 1.31 +#endif // ! _MSC_VER 1.32 + 1.33 +extern int32 cpuSaveType; 1.34 + 1.35 +extern int systemColorDepth; 1.36 +extern int systemRedShift; 1.37 +extern int systemGreenShift; 1.38 +extern int systemBlueShift; 1.39 + 1.40 +extern u16 systemColorMap16[0x10000]; 1.41 +extern u32 systemColorMap32[0x10000]; 1.42 + 1.43 +static int (ZEXPORT *utilGzWriteFunc)(gzFile, voidp, unsigned int) = NULL; 1.44 +static int (ZEXPORT *utilGzReadFunc)(gzFile, voidp, unsigned int) = NULL; 1.45 +static int (ZEXPORT *utilGzCloseFunc)(gzFile) = NULL; 1.46 +static z_off_t (ZEXPORT *utilGzSeekFunc)(gzFile, z_off_t, int) = NULL; 1.47 +static z_off_t (ZEXPORT *utilGzTellFunc)(gzFile) = NULL; 1.48 + 1.49 +//Kludge to get it to compile in Linux, GCC cannot convert 1.50 +//gzwrite function pointer to the type of utilGzWriteFunc 1.51 +//due to void* and const void* differences 1.52 +//--Felipe 1.53 +int gzWrite(gzFile file, void* buf, unsigned len){ 1.54 + return gzwrite(file,buf,len); 1.55 +} 1.56 + 1.57 +void utilPutDword(u8 *p, u32 value) 1.58 +{ 1.59 + *p++ = value & 255; 1.60 + *p++ = (value >> 8) & 255; 1.61 + *p++ = (value >> 16) & 255; 1.62 + *p = (value >> 24) & 255; 1.63 +} 1.64 + 1.65 +void utilPutWord(u8 *p, u16 value) 1.66 +{ 1.67 + *p++ = value & 255; 1.68 + *p = (value >> 8) & 255; 1.69 +} 1.70 + 1.71 +void utilWriteBMP(u8 *b, int w, int h, int dstDepth, u8 *pix) 1.72 +{ 1.73 + int sizeX = w; 1.74 + int sizeY = h; 1.75 + 1.76 + switch (dstDepth > 0 ? dstDepth : systemColorDepth) 1.77 + { 1.78 + case 16: 1.79 + { 1.80 + u16 *p = (u16 *)(pix + (w + 2) * (h) * 2); // skip first black line 1.81 + for (int y = 0; y < sizeY; y++) 1.82 + { 1.83 + for (int x = 0; x < sizeX; x++) 1.84 + { 1.85 + u16 v = *p++; 1.86 + 1.87 + *b++ = ((v >> systemBlueShift) & 0x01f) << 3; // B 1.88 + *b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G 1.89 + *b++ = ((v >> systemRedShift) & 0x001f) << 3; // R 1.90 + } 1.91 + p++; // skip black pixel for filters 1.92 + p++; // skip black pixel for filters 1.93 + p -= 2 * (w + 2); 1.94 + } 1.95 + break; 1.96 + } 1.97 + case 24: 1.98 + { 1.99 + u8 *pixU8 = (u8 *)pix + 3 * w * (h - 1); 1.100 + for (int y = 0; y < sizeY; y++) 1.101 + { 1.102 + for (int x = 0; x < sizeX; x++) 1.103 + { 1.104 + if (systemRedShift > systemBlueShift) 1.105 + { 1.106 + *b++ = *pixU8++; // B 1.107 + *b++ = *pixU8++; // G 1.108 + *b++ = *pixU8++; // R 1.109 + } 1.110 + else 1.111 + { 1.112 + int red = *pixU8++; 1.113 + int green = *pixU8++; 1.114 + int blue = *pixU8++; 1.115 + 1.116 + *b++ = blue; 1.117 + *b++ = green; 1.118 + *b++ = red; 1.119 + } 1.120 + } 1.121 + pixU8 -= 2 * 3 * w; 1.122 + } 1.123 + break; 1.124 + } 1.125 + case 32: 1.126 + { 1.127 + u32 *pixU32 = (u32 *)(pix + 4 * (w + 1) * (h)); 1.128 + for (int y = 0; y < sizeY; y++) 1.129 + { 1.130 + for (int x = 0; x < sizeX; x++) 1.131 + { 1.132 + u32 v = *pixU32++; 1.133 + 1.134 + *b++ = ((v >> systemBlueShift) & 0x001f) << 3; // B 1.135 + *b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G 1.136 + *b++ = ((v >> systemRedShift) & 0x001f) << 3; // R 1.137 + } 1.138 + pixU32++; 1.139 + pixU32 -= 2 * (w + 1); 1.140 + } 1.141 + break; 1.142 + } 1.143 + } 1.144 +} 1.145 + 1.146 +bool utilWriteBMPFile(const char *fileName, int w, int h, u8 *pix) 1.147 +{ 1.148 + u8 writeBuffer[256 * 3]; 1.149 + 1.150 + FILE *fp = fopen(fileName, "wb"); 1.151 + 1.152 + if (!fp) 1.153 + { 1.154 + systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), fileName); 1.155 + return false; 1.156 + } 1.157 + 1.158 + struct 1.159 + { 1.160 + u8 ident[2]; 1.161 + u8 filesize[4]; 1.162 + u8 reserved[4]; 1.163 + u8 dataoffset[4]; 1.164 + u8 headersize[4]; 1.165 + u8 width[4]; 1.166 + u8 height[4]; 1.167 + u8 planes[2]; 1.168 + u8 bitsperpixel[2]; 1.169 + u8 compression[4]; 1.170 + u8 datasize[4]; 1.171 + u8 hres[4]; 1.172 + u8 vres[4]; 1.173 + u8 colors[4]; 1.174 + u8 importantcolors[4]; 1.175 + // u8 pad[2]; 1.176 + } bmpheader; 1.177 + memset(&bmpheader, 0, sizeof(bmpheader)); 1.178 + 1.179 + bmpheader.ident[0] = 'B'; 1.180 + bmpheader.ident[1] = 'M'; 1.181 + 1.182 + u32 fsz = sizeof(bmpheader) + w * h * 3; 1.183 + utilPutDword(bmpheader.filesize, fsz); 1.184 + utilPutDword(bmpheader.dataoffset, 0x36); 1.185 + utilPutDword(bmpheader.headersize, 0x28); 1.186 + utilPutDword(bmpheader.width, w); 1.187 + utilPutDword(bmpheader.height, h); 1.188 + utilPutDword(bmpheader.planes, 1); 1.189 + utilPutDword(bmpheader.bitsperpixel, 24); 1.190 + utilPutDword(bmpheader.datasize, 3 * w * h); 1.191 + 1.192 + fwrite(&bmpheader, 1, sizeof(bmpheader), fp); 1.193 + 1.194 +#if 0 1.195 + // FIXME: need sufficient buffer 1.196 + utilWriteBMP(writeBuffer, w, h, systemColorDepth, pix); 1.197 +#else 1.198 + u8 *b = writeBuffer; 1.199 + 1.200 + int sizeX = w; 1.201 + int sizeY = h; 1.202 + 1.203 + switch (systemColorDepth) 1.204 + { 1.205 + case 16: 1.206 + { 1.207 + u16 *p = (u16 *)(pix + (w + 2) * (h) * 2); // skip first black line 1.208 + for (int y = 0; y < sizeY; y++) 1.209 + { 1.210 + for (int x = 0; x < sizeX; x++) 1.211 + { 1.212 + u16 v = *p++; 1.213 + 1.214 + *b++ = ((v >> systemBlueShift) & 0x01f) << 3; // B 1.215 + *b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G 1.216 + *b++ = ((v >> systemRedShift) & 0x001f) << 3; // R 1.217 + } 1.218 + p++; // skip black pixel for filters 1.219 + p++; // skip black pixel for filters 1.220 + p -= 2 * (w + 2); 1.221 + fwrite(writeBuffer, 1, 3 * w, fp); 1.222 + 1.223 + b = writeBuffer; 1.224 + } 1.225 + break; 1.226 + } 1.227 + case 24: 1.228 + { 1.229 + u8 *pixU8 = (u8 *)pix + 3 * w * (h - 1); 1.230 + for (int y = 0; y < sizeY; y++) 1.231 + { 1.232 + for (int x = 0; x < sizeX; x++) 1.233 + { 1.234 + if (systemRedShift > systemBlueShift) 1.235 + { 1.236 + *b++ = *pixU8++; // B 1.237 + *b++ = *pixU8++; // G 1.238 + *b++ = *pixU8++; // R 1.239 + } 1.240 + else 1.241 + { 1.242 + int red = *pixU8++; 1.243 + int green = *pixU8++; 1.244 + int blue = *pixU8++; 1.245 + 1.246 + *b++ = blue; 1.247 + *b++ = green; 1.248 + *b++ = red; 1.249 + } 1.250 + } 1.251 + pixU8 -= 2 * 3 * w; 1.252 + fwrite(writeBuffer, 1, 3 * w, fp); 1.253 + 1.254 + b = writeBuffer; 1.255 + } 1.256 + break; 1.257 + } 1.258 + case 32: 1.259 + { 1.260 + u32 *pixU32 = (u32 *)(pix + 4 * (w + 1) * (h)); 1.261 + for (int y = 0; y < sizeY; y++) 1.262 + { 1.263 + for (int x = 0; x < sizeX; x++) 1.264 + { 1.265 + u32 v = *pixU32++; 1.266 + 1.267 + *b++ = ((v >> systemBlueShift) & 0x001f) << 3; // B 1.268 + *b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G 1.269 + *b++ = ((v >> systemRedShift) & 0x001f) << 3; // R 1.270 + } 1.271 + pixU32++; 1.272 + pixU32 -= 2 * (w + 1); 1.273 + 1.274 + fwrite(writeBuffer, 1, 3 * w, fp); 1.275 + 1.276 + b = writeBuffer; 1.277 + } 1.278 + break; 1.279 + } 1.280 + } 1.281 +#endif 1.282 + 1.283 + fclose(fp); 1.284 + 1.285 + return true; 1.286 +} 1.287 + 1.288 +bool utilWritePNGFile(const char *fileName, int w, int h, u8 *pix) 1.289 +{ 1.290 + u8 writeBuffer[256 * 3]; 1.291 + 1.292 + FILE *fp = fopen(fileName, "wb"); 1.293 + 1.294 + if (!fp) 1.295 + { 1.296 + systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), fileName); 1.297 + return false; 1.298 + } 1.299 + 1.300 + png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, 1.301 + NULL, 1.302 + NULL, 1.303 + NULL); 1.304 + if (!png_ptr) 1.305 + { 1.306 + fclose(fp); 1.307 + return false; 1.308 + } 1.309 + 1.310 + png_infop info_ptr = png_create_info_struct(png_ptr); 1.311 + 1.312 + if (!info_ptr) 1.313 + { 1.314 + png_destroy_write_struct(&png_ptr, NULL); 1.315 + fclose(fp); 1.316 + return false; 1.317 + } 1.318 + 1.319 + if (setjmp(png_ptr->jmpbuf)) 1.320 + { 1.321 + png_destroy_write_struct(&png_ptr, NULL); 1.322 + fclose(fp); 1.323 + return false; 1.324 + } 1.325 + 1.326 + png_init_io(png_ptr, fp); 1.327 + 1.328 + png_set_IHDR(png_ptr, 1.329 + info_ptr, 1.330 + w, 1.331 + h, 1.332 + 8, 1.333 + PNG_COLOR_TYPE_RGB, 1.334 + PNG_INTERLACE_NONE, 1.335 + PNG_COMPRESSION_TYPE_DEFAULT, 1.336 + PNG_FILTER_TYPE_DEFAULT); 1.337 + 1.338 + png_write_info(png_ptr, info_ptr); 1.339 + 1.340 + u8 *b = writeBuffer; 1.341 + 1.342 + int sizeX = w; 1.343 + int sizeY = h; 1.344 + 1.345 + switch (systemColorDepth) 1.346 + { 1.347 + case 16: 1.348 + { 1.349 + u16 *p = (u16 *)(pix + (w + 2) * 2); // skip first black line 1.350 + for (int y = 0; y < sizeY; y++) 1.351 + { 1.352 + for (int x = 0; x < sizeX; x++) 1.353 + { 1.354 + u16 v = *p++; 1.355 + 1.356 + *b++ = ((v >> systemRedShift) & 0x001f) << 3; // R 1.357 + *b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G 1.358 + *b++ = ((v >> systemBlueShift) & 0x01f) << 3; // B 1.359 + } 1.360 + p++; // skip black pixel for filters 1.361 + p++; // skip black pixel for filters 1.362 + png_write_row(png_ptr, writeBuffer); 1.363 + 1.364 + b = writeBuffer; 1.365 + } 1.366 + break; 1.367 + } 1.368 + case 24: 1.369 + { 1.370 + u8 *pixU8 = (u8 *)pix; 1.371 + for (int y = 0; y < sizeY; y++) 1.372 + { 1.373 + for (int x = 0; x < sizeX; x++) 1.374 + { 1.375 + if (systemRedShift < systemBlueShift) 1.376 + { 1.377 + *b++ = *pixU8++; // R 1.378 + *b++ = *pixU8++; // G 1.379 + *b++ = *pixU8++; // B 1.380 + } 1.381 + else 1.382 + { 1.383 + int blue = *pixU8++; 1.384 + int green = *pixU8++; 1.385 + int red = *pixU8++; 1.386 + 1.387 + *b++ = red; 1.388 + *b++ = green; 1.389 + *b++ = blue; 1.390 + } 1.391 + } 1.392 + png_write_row(png_ptr, writeBuffer); 1.393 + 1.394 + b = writeBuffer; 1.395 + } 1.396 + break; 1.397 + } 1.398 + case 32: 1.399 + { 1.400 + u32 *pixU32 = (u32 *)(pix + 4 * (w + 1)); 1.401 + for (int y = 0; y < sizeY; y++) 1.402 + { 1.403 + for (int x = 0; x < sizeX; x++) 1.404 + { 1.405 + u32 v = *pixU32++; 1.406 + 1.407 + *b++ = ((v >> systemRedShift) & 0x001f) << 3; // R 1.408 + *b++ = ((v >> systemGreenShift) & 0x001f) << 3; // G 1.409 + *b++ = ((v >> systemBlueShift) & 0x001f) << 3; // B 1.410 + } 1.411 + pixU32++; 1.412 + 1.413 + png_write_row(png_ptr, writeBuffer); 1.414 + 1.415 + b = writeBuffer; 1.416 + } 1.417 + break; 1.418 + } 1.419 + } 1.420 + 1.421 + png_write_end(png_ptr, info_ptr); 1.422 + 1.423 + png_destroy_write_struct(&png_ptr, &info_ptr); 1.424 + 1.425 + fclose(fp); 1.426 + 1.427 + return true; 1.428 +} 1.429 + 1.430 +static int utilReadInt2(FILE *f) 1.431 +{ 1.432 + int res = 0; 1.433 + int c = fgetc(f); 1.434 + if (c == EOF) 1.435 + return -1; 1.436 + res = c; 1.437 + c = fgetc(f); 1.438 + if (c == EOF) 1.439 + return -1; 1.440 + return c + (res << 8); 1.441 +} 1.442 + 1.443 +static int utilReadInt3(FILE *f) 1.444 +{ 1.445 + int res = 0; 1.446 + int c = fgetc(f); 1.447 + if (c == EOF) 1.448 + return -1; 1.449 + res = c; 1.450 + c = fgetc(f); 1.451 + if (c == EOF) 1.452 + return -1; 1.453 + res = c + (res << 8); 1.454 + c = fgetc(f); 1.455 + if (c == EOF) 1.456 + return -1; 1.457 + return c + (res << 8); 1.458 +} 1.459 + 1.460 +void utilApplyIPS(const char *ips, u8 * *r, int *s) 1.461 +{ 1.462 + // from the IPS spec at http://zerosoft.zophar.net/ips.htm 1.463 + FILE *f = fopen(ips, "rb"); 1.464 + if (!f) 1.465 + return; 1.466 + u8 *rom = *r; 1.467 + int size = *s; 1.468 + if (fgetc(f) == 'P' && 1.469 + fgetc(f) == 'A' && 1.470 + fgetc(f) == 'T' && 1.471 + fgetc(f) == 'C' && 1.472 + fgetc(f) == 'H') 1.473 + { 1.474 + int b; 1.475 + int offset; 1.476 + int len; 1.477 + for (;; ) 1.478 + { 1.479 + // read offset 1.480 + offset = utilReadInt3(f); 1.481 + // if offset == EOF, end of patch 1.482 + if (offset == 0x454f46) 1.483 + break; 1.484 + // read length 1.485 + len = utilReadInt2(f); 1.486 + if (!len) 1.487 + { 1.488 + // len == 0, RLE block 1.489 + len = utilReadInt2(f); 1.490 + // byte to fill 1.491 + int c = fgetc(f); 1.492 + if (c == -1) 1.493 + break; 1.494 + b = (u8)c; 1.495 + } 1.496 + else 1.497 + b = -1; 1.498 + // check if we need to reallocate our ROM 1.499 + if ((offset + len) >= size) 1.500 + { 1.501 + size *= 2; 1.502 + rom = (u8 *)realloc(rom, size); 1.503 + *r = rom; 1.504 + *s = size; 1.505 + } 1.506 + if (b == -1) 1.507 + { 1.508 + // normal block, just read the data 1.509 + if (fread(&rom[offset], 1, len, f) != (size_t)len) 1.510 + break; 1.511 + } 1.512 + else 1.513 + { 1.514 + // fill the region with the given byte 1.515 + while (len--) 1.516 + { 1.517 + rom[offset++] = b; 1.518 + } 1.519 + } 1.520 + } 1.521 + } 1.522 + // close the file 1.523 + fclose(f); 1.524 +} 1.525 + 1.526 +extern bool8 cpuIsMultiBoot; 1.527 + 1.528 +bool utilIsGBAImage(const char *file) 1.529 +{ 1.530 + cpuIsMultiBoot = false; 1.531 + if (strlen(file) > 4) 1.532 + { 1.533 + const char *p = strrchr(file, '.'); 1.534 + 1.535 + if (p != NULL) 1.536 + { 1.537 + if (_stricmp(p, ".gba") == 0) 1.538 + return true; 1.539 + if (_stricmp(p, ".agb") == 0) 1.540 + return true; 1.541 + if (_stricmp(p, ".bin") == 0) 1.542 + return true; 1.543 + if (_stricmp(p, ".elf") == 0) 1.544 + return true; 1.545 + if (_stricmp(p, ".mb") == 0) 1.546 + { 1.547 + cpuIsMultiBoot = true; 1.548 + return true; 1.549 + } 1.550 + } 1.551 + } 1.552 + 1.553 + return false; 1.554 +} 1.555 + 1.556 +bool utilIsGBImage(const char *file) 1.557 +{ 1.558 + if (strlen(file) > 4) 1.559 + { 1.560 + const char *p = strrchr(file, '.'); 1.561 + 1.562 + if (p != NULL) 1.563 + { 1.564 + if (_stricmp(p, ".gb") == 0) 1.565 + return true; 1.566 + if (_stricmp(p, ".gbc") == 0) 1.567 + return true; 1.568 + if (_stricmp(p, ".cgb") == 0) 1.569 + return true; 1.570 + if (_stricmp(p, ".sgb") == 0) 1.571 + return true; 1.572 + } 1.573 + } 1.574 + 1.575 + return false; 1.576 +} 1.577 + 1.578 +bool utilIsGBABios(const char *file) 1.579 +{ 1.580 + if (strlen(file) > 4) 1.581 + { 1.582 + const char *p = strrchr(file, '.'); 1.583 + 1.584 + if (p != NULL) 1.585 + { 1.586 + if (_stricmp(p, ".gba") == 0) 1.587 + return true; 1.588 + if (_stricmp(p, ".agb") == 0) 1.589 + return true; 1.590 + if (_stricmp(p, ".bin") == 0) 1.591 + return true; 1.592 + if (_stricmp(p, ".bios") == 0) 1.593 + return true; 1.594 + if (_stricmp(p, ".rom") == 0) 1.595 + return true; 1.596 + } 1.597 + } 1.598 + 1.599 + return false; 1.600 +} 1.601 + 1.602 +bool utilIsGBBios(const char *file) 1.603 +{ 1.604 + if (strlen(file) > 4) 1.605 + { 1.606 + const char *p = strrchr(file, '.'); 1.607 + 1.608 + if (p != NULL) 1.609 + { 1.610 + if (_stricmp(p, ".gb") == 0) 1.611 + return true; 1.612 + if (_stricmp(p, ".bin") == 0) 1.613 + return true; 1.614 + if (_stricmp(p, ".bios") == 0) 1.615 + return true; 1.616 + if (_stricmp(p, ".rom") == 0) 1.617 + return true; 1.618 + } 1.619 + } 1.620 + 1.621 + return false; 1.622 +} 1.623 + 1.624 +bool utilIsELF(const char *file) 1.625 +{ 1.626 + if (strlen(file) > 4) 1.627 + { 1.628 + const char *p = strrchr(file, '.'); 1.629 + 1.630 + if (p != NULL) 1.631 + { 1.632 + if (_stricmp(p, ".elf") == 0) 1.633 + return true; 1.634 + } 1.635 + } 1.636 + return false; 1.637 +} 1.638 + 1.639 +bool utilIsZipFile(const char *file) 1.640 +{ 1.641 + if (strlen(file) > 4) 1.642 + { 1.643 + const char *p = strrchr(file, '.'); 1.644 + 1.645 + if (p != NULL) 1.646 + { 1.647 + if (_stricmp(p, ".zip") == 0) 1.648 + return true; 1.649 + } 1.650 + } 1.651 + 1.652 + return false; 1.653 +} 1.654 + 1.655 +#if 0 1.656 +bool utilIsRarFile(const char *file) 1.657 +{ 1.658 + if (strlen(file) > 4) 1.659 + { 1.660 + char *p = strrchr(file, '.'); 1.661 + 1.662 + if (p != NULL) 1.663 + { 1.664 + if (_stricmp(p, ".rar") == 0) 1.665 + return true; 1.666 + } 1.667 + } 1.668 + 1.669 + return false; 1.670 +} 1.671 + 1.672 +#endif 1.673 + 1.674 +bool utilIsGzipFile(const char *file) 1.675 +{ 1.676 + if (strlen(file) > 3) 1.677 + { 1.678 + const char *p = strrchr(file, '.'); 1.679 + 1.680 + if (p != NULL) 1.681 + { 1.682 + if (_stricmp(p, ".gz") == 0) 1.683 + return true; 1.684 + if (_stricmp(p, ".z") == 0) 1.685 + return true; 1.686 + } 1.687 + } 1.688 + 1.689 + return false; 1.690 +} 1.691 + 1.692 +void utilGetBaseName(const char *file, char *buffer) 1.693 +{ 1.694 + strcpy(buffer, file); 1.695 + 1.696 + if (utilIsGzipFile(file)) 1.697 + { 1.698 + char *p = strrchr(buffer, '.'); 1.699 + 1.700 + if (p) 1.701 + *p = 0; 1.702 + } 1.703 +} 1.704 + 1.705 +IMAGE_TYPE utilFindType(const char *file) 1.706 +{ 1.707 + char buffer[2048]; 1.708 + 1.709 + if (utilIsZipFile(file)) 1.710 + { 1.711 + unzFile unz = unzOpen(file); 1.712 + 1.713 + if (unz == NULL) 1.714 + { 1.715 + systemMessage(MSG_CANNOT_OPEN_FILE, N_("Cannot open file %s"), file); 1.716 + return IMAGE_UNKNOWN; 1.717 + } 1.718 + 1.719 + int r = unzGoToFirstFile(unz); 1.720 + 1.721 + if (r != UNZ_OK) 1.722 + { 1.723 + unzClose(unz); 1.724 + systemMessage(MSG_BAD_ZIP_FILE, N_("Bad ZIP file %s"), file); 1.725 + return IMAGE_UNKNOWN; 1.726 + } 1.727 + 1.728 + IMAGE_TYPE found = IMAGE_UNKNOWN; 1.729 + 1.730 + unz_file_info info; 1.731 + 1.732 + while (true) 1.733 + { 1.734 + r = unzGetCurrentFileInfo(unz, 1.735 + &info, 1.736 + buffer, 1.737 + sizeof(buffer), 1.738 + NULL, 1.739 + 0, 1.740 + NULL, 1.741 + 0); 1.742 + 1.743 + if (r != UNZ_OK) 1.744 + { 1.745 + unzClose(unz); 1.746 + systemMessage(MSG_BAD_ZIP_FILE, N_("Bad ZIP file %s"), file); 1.747 + return IMAGE_UNKNOWN; 1.748 + } 1.749 + 1.750 + if (utilIsGBAImage(buffer)) 1.751 + { 1.752 + found = IMAGE_GBA; 1.753 + break; 1.754 + } 1.755 + 1.756 + if (utilIsGBImage(buffer)) 1.757 + { 1.758 + found = IMAGE_GB; 1.759 + break; 1.760 + } 1.761 + 1.762 + r = unzGoToNextFile(unz); 1.763 + 1.764 + if (r != UNZ_OK) 1.765 + break; 1.766 + } 1.767 + unzClose(unz); 1.768 + 1.769 + if (found == IMAGE_UNKNOWN) 1.770 + { 1.771 + systemMessage(MSG_NO_IMAGE_ON_ZIP, 1.772 + N_("No image found on ZIP file %s"), file); 1.773 + return found; 1.774 + } 1.775 + return found; 1.776 +#if 0 1.777 + } 1.778 + else if (utilIsRarFile(file)) 1.779 + { 1.780 + IMAGE_TYPE found = IMAGE_UNKNOWN; 1.781 + 1.782 + ArchiveList_struct *rarList = NULL; 1.783 + if (urarlib_list((void *)file, (ArchiveList_struct *)&rarList)) 1.784 + { 1.785 + ArchiveList_struct *p = rarList; 1.786 + 1.787 + while (p) 1.788 + { 1.789 + if (utilIsGBAImage(p->item.Name)) 1.790 + { 1.791 + found = IMAGE_GBA; 1.792 + break; 1.793 + } 1.794 + 1.795 + if (utilIsGBImage(p->item.Name)) 1.796 + { 1.797 + found = IMAGE_GB; 1.798 + break; 1.799 + } 1.800 + p = p->next; 1.801 + } 1.802 + 1.803 + urarlib_freelist(rarList); 1.804 + } 1.805 + return found; 1.806 +#endif 1.807 + } 1.808 + else 1.809 + { 1.810 + if (utilIsGzipFile(file)) 1.811 + utilGetBaseName(file, buffer); 1.812 + else 1.813 + strcpy(buffer, file); 1.814 + 1.815 + if (utilIsGBAImage(buffer)) 1.816 + return IMAGE_GBA; 1.817 + if (utilIsGBImage(buffer)) 1.818 + return IMAGE_GB; 1.819 + } 1.820 + return IMAGE_UNKNOWN; 1.821 +} 1.822 + 1.823 +static int utilGetSize(int size) 1.824 +{ 1.825 + int res = 1; 1.826 + while (res < size) 1.827 + res <<= 1; 1.828 + return res; 1.829 +} 1.830 + 1.831 +static u8 *utilLoadFromZip(const char *file, 1.832 + bool (*accept)(const char *), 1.833 + u8 *data, 1.834 + int &size) 1.835 +{ 1.836 + char buffer[2048]; 1.837 + 1.838 + unzFile unz = unzOpen(file); 1.839 + 1.840 + if (unz == NULL) 1.841 + { 1.842 + systemMessage(MSG_CANNOT_OPEN_FILE, N_("Cannot open file %s"), file); 1.843 + return NULL; 1.844 + } 1.845 + int r = unzGoToFirstFile(unz); 1.846 + 1.847 + if (r != UNZ_OK) 1.848 + { 1.849 + unzClose(unz); 1.850 + systemMessage(MSG_BAD_ZIP_FILE, N_("Bad ZIP file %s"), file); 1.851 + return NULL; 1.852 + } 1.853 + 1.854 + bool found = false; 1.855 + 1.856 + unz_file_info info; 1.857 + 1.858 + while (true) 1.859 + { 1.860 + r = unzGetCurrentFileInfo(unz, 1.861 + &info, 1.862 + buffer, 1.863 + sizeof(buffer), 1.864 + NULL, 1.865 + 0, 1.866 + NULL, 1.867 + 0); 1.868 + 1.869 + if (r != UNZ_OK) 1.870 + { 1.871 + unzClose(unz); 1.872 + systemMessage(MSG_BAD_ZIP_FILE, N_("Bad ZIP file %s"), file); 1.873 + return NULL; 1.874 + } 1.875 + 1.876 + if (accept(buffer)) 1.877 + { 1.878 + found = true; 1.879 + break; 1.880 + } 1.881 + 1.882 + r = unzGoToNextFile(unz); 1.883 + 1.884 + if (r != UNZ_OK) 1.885 + break; 1.886 + } 1.887 + 1.888 + if (!found) 1.889 + { 1.890 + unzClose(unz); 1.891 + systemMessage(MSG_NO_IMAGE_ON_ZIP, 1.892 + N_("No image found on ZIP file %s"), file); 1.893 + return NULL; 1.894 + } 1.895 + 1.896 + int fileSize = info.uncompressed_size; 1.897 + if (size == 0) 1.898 + size = fileSize; 1.899 + r = unzOpenCurrentFile(unz); 1.900 + 1.901 + if (r != UNZ_OK) 1.902 + { 1.903 + unzClose(unz); 1.904 + systemMessage(MSG_ERROR_OPENING_IMAGE, N_("Error opening image %s"), buffer); 1.905 + return NULL; 1.906 + } 1.907 + 1.908 + u8 *image = data; 1.909 + 1.910 + if (image == NULL) 1.911 + { 1.912 + image = (u8 *)malloc(utilGetSize(size)); 1.913 + if (image == NULL) 1.914 + { 1.915 + unzCloseCurrentFile(unz); 1.916 + unzClose(unz); 1.917 + systemMessage(MSG_OUT_OF_MEMORY, N_("Failed to allocate memory for %s"), 1.918 + "data"); 1.919 + return NULL; 1.920 + } 1.921 + size = fileSize; 1.922 + } 1.923 + int read = fileSize <= size ? fileSize : size; 1.924 + r = unzReadCurrentFile(unz, 1.925 + image, 1.926 + read); 1.927 + 1.928 + unzCloseCurrentFile(unz); 1.929 + unzClose(unz); 1.930 + 1.931 + if (r != (int)read) 1.932 + { 1.933 + systemMessage(MSG_ERROR_READING_IMAGE, 1.934 + N_("Error reading image %s"), buffer); 1.935 + if (data == NULL) 1.936 + free(image); 1.937 + return NULL; 1.938 + } 1.939 + 1.940 + size = fileSize; 1.941 + 1.942 + return image; 1.943 +} 1.944 + 1.945 +static u8 *utilLoadGzipFile(const char *file, 1.946 + bool (*accept)(const char *), 1.947 + u8 *data, 1.948 + int &size) 1.949 +{ 1.950 + FILE *f = fopen(file, "rb"); 1.951 + 1.952 + if (f == NULL) 1.953 + { 1.954 + systemMessage(MSG_ERROR_OPENING_IMAGE, N_("Error opening image %s"), file); 1.955 + return NULL; 1.956 + } 1.957 + 1.958 + fseek(f, -4, SEEK_END); 1.959 + int fileSize = fgetc(f) | (fgetc(f) << 8) | (fgetc(f) << 16) | (fgetc(f) << 24); 1.960 + fclose(f); 1.961 + if (size == 0) 1.962 + size = fileSize; 1.963 + 1.964 + gzFile gz = gzopen(file, "rb"); 1.965 + 1.966 + if (gz == NULL) 1.967 + { 1.968 + // should not happen, but who knows? 1.969 + systemMessage(MSG_ERROR_OPENING_IMAGE, N_("Error opening image %s"), file); 1.970 + return NULL; 1.971 + } 1.972 + 1.973 + u8 *image = data; 1.974 + 1.975 + if (image == NULL) 1.976 + { 1.977 + image = (u8 *)malloc(utilGetSize(size)); 1.978 + if (image == NULL) 1.979 + { 1.980 + systemMessage(MSG_OUT_OF_MEMORY, N_("Failed to allocate memory for %s"), 1.981 + "data"); 1.982 + fclose(f); 1.983 + return NULL; 1.984 + } 1.985 + size = fileSize; 1.986 + } 1.987 + int read = fileSize <= size ? fileSize : size; 1.988 + int r = gzread(gz, image, read); 1.989 + gzclose(gz); 1.990 + 1.991 + if (r != (int)read) 1.992 + { 1.993 + systemMessage(MSG_ERROR_READING_IMAGE, 1.994 + N_("Error reading image %s"), file); 1.995 + if (data == NULL) 1.996 + free(image); 1.997 + return NULL; 1.998 + } 1.999 + 1.1000 + size = fileSize; 1.1001 + 1.1002 + return image; 1.1003 +} 1.1004 + 1.1005 +#if 0 1.1006 +static u8 *utilLoadRarFile(const char *file, 1.1007 + bool (*accept)(const char *), 1.1008 + u8 *data, 1.1009 + int &size) 1.1010 +{ 1.1011 + char buffer[2048]; 1.1012 + 1.1013 + ArchiveList_struct *rarList = NULL; 1.1014 + if (urarlib_list((void *)file, (ArchiveList_struct *)&rarList)) 1.1015 + { 1.1016 + ArchiveList_struct *p = rarList; 1.1017 + 1.1018 + bool found = false; 1.1019 + while (p) 1.1020 + { 1.1021 + if (accept(p->item.Name)) 1.1022 + { 1.1023 + strcpy(buffer, p->item.Name); 1.1024 + found = true; 1.1025 + break; 1.1026 + } 1.1027 + p = p->next; 1.1028 + } 1.1029 + if (found) 1.1030 + { 1.1031 + void *memory = NULL; 1.1032 + unsigned long lsize = 0; 1.1033 + size = p->item.UnpSize; 1.1034 + int r = urarlib_get((void *)&memory, &lsize, buffer, (void *)file, ""); 1.1035 + if (!r) 1.1036 + { 1.1037 + systemMessage(MSG_ERROR_READING_IMAGE, 1.1038 + N_("Error reading image %s"), buffer); 1.1039 + urarlib_freelist(rarList); 1.1040 + return NULL; 1.1041 + } 1.1042 + u8 *image = (u8 *)memory; 1.1043 + if (data != NULL) 1.1044 + { 1.1045 + memcpy(image, data, size); 1.1046 + } 1.1047 + urarlib_freelist(rarList); 1.1048 + return image; 1.1049 + } 1.1050 + systemMessage(MSG_NO_IMAGE_ON_ZIP, 1.1051 + N_("No image found on RAR file %s"), file); 1.1052 + urarlib_freelist(rarList); 1.1053 + return NULL; 1.1054 + } 1.1055 + // nothing found 1.1056 + return NULL; 1.1057 +} 1.1058 + 1.1059 +#endif 1.1060 + 1.1061 +// the caller is responsible for caling free(return value) to release the memory 1.1062 +u8 *utilLoad(const char *file, 1.1063 + bool (*accept)(const char *), 1.1064 + u8 *data, 1.1065 + int &size) 1.1066 +{ 1.1067 + if (utilIsZipFile(file)) 1.1068 + { 1.1069 + return utilLoadFromZip(file, accept, data, size); 1.1070 + } 1.1071 + if (utilIsGzipFile(file)) 1.1072 + { 1.1073 + return utilLoadGzipFile(file, accept, data, size); 1.1074 + } 1.1075 +#if 0 1.1076 + if (utilIsRarFile(file)) 1.1077 + { 1.1078 + return utilLoadRarFile(file, accept, data, size); 1.1079 + } 1.1080 +#endif 1.1081 + 1.1082 + u8 *image = data; 1.1083 + 1.1084 + FILE *f = fopen(file, "rb"); 1.1085 + 1.1086 + if (!f) 1.1087 + { 1.1088 + systemMessage(MSG_ERROR_OPENING_IMAGE, N_("Error opening image %s"), file); 1.1089 + return NULL; 1.1090 + } 1.1091 + 1.1092 + fseek(f, 0, SEEK_END); 1.1093 + int fileSize = ftell(f); 1.1094 + fseek(f, 0, SEEK_SET); 1.1095 + if (size == 0) 1.1096 + size = fileSize; 1.1097 + 1.1098 + if (image == NULL) 1.1099 + { 1.1100 + image = (u8 *)malloc(utilGetSize(size)); 1.1101 + if (image == NULL) 1.1102 + { 1.1103 + systemMessage(MSG_OUT_OF_MEMORY, N_("Failed to allocate memory for %s"), 1.1104 + "data"); 1.1105 + fclose(f); 1.1106 + return NULL; 1.1107 + } 1.1108 + size = fileSize; 1.1109 + } 1.1110 + int read = fileSize <= size ? fileSize : size; 1.1111 + int r = fread(image, 1, read, f); 1.1112 + fclose(f); 1.1113 + 1.1114 + if (r != (int)read) 1.1115 + { 1.1116 + systemMessage(MSG_ERROR_READING_IMAGE, 1.1117 + N_("Error reading image %s"), file); 1.1118 + if (data == NULL) 1.1119 + free(image); 1.1120 + return NULL; 1.1121 + } 1.1122 + 1.1123 + size = fileSize; 1.1124 + 1.1125 + return image; 1.1126 +} 1.1127 + 1.1128 +void utilWriteInt(gzFile gzFile, int32 i) 1.1129 +{ 1.1130 + utilGzWrite(gzFile, &i, sizeof(int32)); 1.1131 +} 1.1132 + 1.1133 +int32 utilReadInt(gzFile gzFile) 1.1134 +{ 1.1135 + int32 i = 0; 1.1136 + utilGzRead(gzFile, &i, sizeof(int32)); 1.1137 + return i; 1.1138 +} 1.1139 + 1.1140 +void utilReadData(gzFile gzFile, variable_desc *data) 1.1141 +{ 1.1142 + while (data->address) 1.1143 + { 1.1144 + utilGzRead(gzFile, data->address, data->size); 1.1145 + data++; 1.1146 + } 1.1147 +} 1.1148 + 1.1149 +void utilWriteData(gzFile gzFile, variable_desc *data) 1.1150 +{ 1.1151 + while (data->address) 1.1152 + { 1.1153 + utilGzWrite(gzFile, data->address, data->size); 1.1154 + data++; 1.1155 + } 1.1156 +} 1.1157 + 1.1158 +gzFile utilGzOpen(const char *file, const char *mode) 1.1159 +{ 1.1160 + utilGzWriteFunc = gzWrite; 1.1161 + utilGzReadFunc = gzread; 1.1162 + utilGzCloseFunc = gzclose; 1.1163 + utilGzSeekFunc = gzseek; 1.1164 + utilGzTellFunc = gztell; 1.1165 + 1.1166 + return gzopen(file, mode); 1.1167 +} 1.1168 + 1.1169 +gzFile utilGzReopen(int id, const char *mode) 1.1170 +{ 1.1171 + utilGzWriteFunc = gzWrite; 1.1172 + utilGzReadFunc = gzread; 1.1173 + utilGzCloseFunc = gzclose; 1.1174 + utilGzSeekFunc = gzseek; 1.1175 + utilGzTellFunc = gztell; 1.1176 + 1.1177 + return gzdopen(id, mode); 1.1178 +} 1.1179 + 1.1180 +gzFile utilMemGzOpen(char *memory, int available, char *mode) 1.1181 +{ 1.1182 + utilGzWriteFunc = memgzwrite; 1.1183 + utilGzReadFunc = memgzread; 1.1184 + utilGzCloseFunc = memgzclose; 1.1185 + utilGzSeekFunc = NULL; // FIXME: not implemented... 1.1186 + utilGzTellFunc = memtell; 1.1187 + 1.1188 + return memgzopen(memory, available, mode); 1.1189 +} 1.1190 + 1.1191 +int utilGzWrite(gzFile file, voidp buffer, unsigned int len) 1.1192 +{ 1.1193 + return utilGzWriteFunc(file, buffer, len); 1.1194 +} 1.1195 + 1.1196 +int utilGzRead(gzFile file, voidp buffer, unsigned int len) 1.1197 +{ 1.1198 + return utilGzReadFunc(file, buffer, len); 1.1199 +} 1.1200 + 1.1201 +int utilGzClose(gzFile file) 1.1202 +{ 1.1203 + return utilGzCloseFunc(file); 1.1204 +} 1.1205 + 1.1206 +z_off_t utilGzSeek(gzFile file, z_off_t offset, int whence) 1.1207 +{ 1.1208 + return utilGzSeekFunc(file, offset, whence); 1.1209 +} 1.1210 + 1.1211 +z_off_t utilGzTell(gzFile file) 1.1212 +{ 1.1213 + return utilGzTellFunc(file); 1.1214 +} 1.1215 + 1.1216 +void utilGBAFindSave(const u8 *data, const int size) 1.1217 +{ 1.1218 + u32 *p = (u32 *)data; 1.1219 + u32 *end = (u32 *)(data + size); 1.1220 + int saveType = 0; 1.1221 + int flashSize = 0x10000; 1.1222 + bool rtcFound = false; 1.1223 + 1.1224 + while (p < end) 1.1225 + { 1.1226 + u32 d = READ32LE(p); 1.1227 + 1.1228 + if (d == 0x52504545) 1.1229 + { 1.1230 + if (memcmp(p, "EEPROM_", 7) == 0) 1.1231 + { 1.1232 + if (saveType == 0) 1.1233 + saveType = 1; 1.1234 + } 1.1235 + } 1.1236 + else if (d == 0x4D415253) 1.1237 + { 1.1238 + if (memcmp(p, "SRAM_", 5) == 0) 1.1239 + { 1.1240 + if (saveType == 0) 1.1241 + saveType = 2; 1.1242 + } 1.1243 + } 1.1244 + else if (d == 0x53414C46) 1.1245 + { 1.1246 + if (memcmp(p, "FLASH1M_", 8) == 0) 1.1247 + { 1.1248 + if (saveType == 0) 1.1249 + { 1.1250 + saveType = 3; 1.1251 + flashSize = 0x20000; 1.1252 + } 1.1253 + } 1.1254 + else if (memcmp(p, "FLASH", 5) == 0) 1.1255 + { 1.1256 + if (saveType == 0) 1.1257 + { 1.1258 + saveType = 3; 1.1259 + flashSize = 0x10000; 1.1260 + } 1.1261 + } 1.1262 + } 1.1263 + else if (d == 0x52494953) 1.1264 + { 1.1265 + if (memcmp(p, "SIIRTC_V", 8) == 0) 1.1266 + rtcFound = true; 1.1267 + } 1.1268 + p++; 1.1269 + } 1.1270 + // if no matches found, then set it to NONE 1.1271 + if (saveType == 0) 1.1272 + { 1.1273 + saveType = 5; 1.1274 + } 1.1275 + rtcEnable(rtcFound); 1.1276 + cpuSaveType = saveType; 1.1277 + flashSetSize(flashSize); 1.1278 +} 1.1279 + 1.1280 +void utilUpdateSystemColorMaps() 1.1281 +{ 1.1282 + switch (systemColorDepth) 1.1283 + { 1.1284 + case 16: 1.1285 + { 1.1286 + for (int i = 0; i < 0x10000; i++) 1.1287 + { 1.1288 + systemColorMap16[i] = ((i & 0x1f) << systemRedShift) | 1.1289 + (((i & 0x3e0) >> 5) << systemGreenShift) | 1.1290 + (((i & 0x7c00) >> 10) << systemBlueShift); 1.1291 + } 1.1292 + break; 1.1293 + } 1.1294 + case 24: 1.1295 + case 32: 1.1296 + { 1.1297 + for (int i = 0; i < 0x10000; i++) 1.1298 + { 1.1299 + systemColorMap32[i] = ((i & 0x1f) << systemRedShift) | 1.1300 + (((i & 0x3e0) >> 5) << systemGreenShift) | 1.1301 + (((i & 0x7c00) >> 10) << systemBlueShift); 1.1302 + } 1.1303 + break; 1.1304 + } 1.1305 + } 1.1306 +} 1.1307 + 1.1308 +//// BIOS stuff 1.1309 +// systemType uses the same enum values as gbEmulatorType does 1.1310 + 1.1311 +bool utilLoadBIOS(u8 *bios, const char *biosFileName, int systemType) 1.1312 +{ 1.1313 + if (bios == NULL || strlen(biosFileName) == 0) 1.1314 + return false; 1.1315 + 1.1316 + if (systemType == 4) 1.1317 + { 1.1318 + int biosSize = 0x4000; 1.1319 + if (utilLoad(biosFileName, utilIsGBABios, bios, biosSize)) 1.1320 + { 1.1321 + if (biosSize == 0x4000) 1.1322 + return true; 1.1323 + } 1.1324 + } 1.1325 + else 1.1326 + { 1.1327 + int biosSize = 0x100; 1.1328 + if (utilLoad(biosFileName, utilIsGBBios, bios, biosSize)) 1.1329 + { 1.1330 + if (biosSize == 0x100) 1.1331 + return true; 1.1332 + } 1.1333 + } 1.1334 + 1.1335 + return false; 1.1336 +} 1.1337 + 1.1338 +bool utilCheckBIOS(const char *biosFileName, int systemType) 1.1339 +{ 1.1340 + if (strlen(biosFileName) == 0) 1.1341 + return false; 1.1342 + 1.1343 + u8 * tempBIOS = (u8 *)malloc(systemType == 4 ? 0x4000 : 0x100); 1.1344 + bool result = utilLoadBIOS(tempBIOS, biosFileName, systemType); 1.1345 + free(tempBIOS); 1.1346 + 1.1347 + return result; 1.1348 +} 1.1349 + 1.1350 +#if 0 1.1351 +// returns the checksum of the BIOS that will be loaded after the next restart 1.1352 +u16 utilCalcBIOSChecksum(const u8 *bios, int systemType) 1.1353 +{ 1.1354 + u32 biosChecksum = 0; 1.1355 + if (bios) 1.1356 + { 1.1357 + int biosSize = (systemType == 4 ? 0x4000 : 0x100); 1.1358 + const u16 *data = reinterpret_cast<const u16 *>(bios); 1.1359 + for (int i = biosSize; i > 0; i -= 2) 1.1360 + biosChecksum += *data++; 1.1361 + } 1.1362 + 1.1363 + while ((biosChecksum >> 16) & 0xFFFF) 1.1364 + biosChecksum = (biosChecksum &0xFFFF) + ((biosChecksum >> 16) & 0xFFFF); 1.1365 + 1.1366 + return biosChecksum & 0xFFFF; 1.1367 +} 1.1368 +#else 1.1369 +// returns the checksum of the BIOS that will be loaded after the next restart 1.1370 +u16 utilCalcBIOSChecksum(const u8 *bios, int systemType) 1.1371 +{ 1.1372 + u32 biosChecksum = 0; 1.1373 + if (bios) 1.1374 + { 1.1375 + int biosSize = (systemType == 4 ? 0x4000 : 0x100); 1.1376 + const u32 *data = reinterpret_cast<const u32 *>(bios); 1.1377 + for (int i = biosSize; i > 0; i -= 4) 1.1378 + biosChecksum += *data++; 1.1379 + } 1.1380 + 1.1381 + return biosChecksum & 0xFFFF; 1.1382 +} 1.1383 +#endif 1.1384 + 1.1385 +// returns the checksum of the BIOS file 1.1386 +u16 utilCalcBIOSFileChecksum(const char *biosFileName, int systemType) 1.1387 +{ 1.1388 + if (strlen(biosFileName) == 0) 1.1389 + return 0; 1.1390 + 1.1391 + u16 biosChecksum = 0; 1.1392 + const int biosSize = (systemType == 4 ? 0x4000 : 0x100); 1.1393 + u8 * tempBIOS = (u8 *)malloc(biosSize); 1.1394 + bool hasBIOS = utilLoadBIOS(tempBIOS, biosFileName, systemType); 1.1395 + if (hasBIOS) 1.1396 + { 1.1397 + biosChecksum = utilCalcBIOSChecksum(tempBIOS, systemType); 1.1398 + } 1.1399 + free(tempBIOS); 1.1400 + 1.1401 + return biosChecksum; 1.1402 +} 1.1403 +