/* This file contains a function for loading a SNES ROM image from a zip file */
/**********************************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
#include <ctype.h>
+#include <assert.h>
+
+#include "snes9x.h"
#ifndef NO_INLINE_SET_GET
#define NO_INLINE_SET_GET
#endif
-#include "snes9x.h"
#include "memmap.h"
-
#include "unzip.h"
-//#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
bool8 LoadZip(const char* zipname,
int32 *TotalFileSize,
unzFile file = unzOpen(zipname);
if(file == NULL)
- return (FALSE);
+ return FALSE;
// find largest file in zip file (under MAX_ROM_SIZE)
// or a file with extension .1
int filesize = 0;
int port = unzGoToFirstFile(file);
unz_file_info info;
- while(port == UNZ_OK)
+ while (port == UNZ_OK)
{
- char name[132];
- unzGetCurrentFileInfo(file, &info, name,128, NULL,0, NULL,0);
+ char name[132];
+ unzGetCurrentFileInfo(file, &info, name,128, NULL,0, NULL,0);
#if 0
- int calc_size = info.uncompressed_size / 0x2000;
- calc_size *= 0x2000;
- if(!(info.uncompressed_size - calc_size == 512 || info.uncompressed_size == calc_size))
- {
- port = unzGoToNextFile(file);
- continue;
- }
+ int calc_size = info.uncompressed_size / 0x2000;
+ calc_size *= 0x2000;
+ if(!(info.uncompressed_size - calc_size == 512 || info.uncompressed_size == calc_size))
+ {
+ port = unzGoToNextFile(file);
+ continue;
+ }
#endif
- if(info.uncompressed_size > (CMemory::MAX_ROM_SIZE + 512))
- {
- port = unzGoToNextFile(file);
- continue;
- }
-
- if ((int) info.uncompressed_size > filesize)
- {
- strcpy(filename,name);
- filesize = info.uncompressed_size;
- }
- int len = strlen(name);
- if(name[len-2] == '.' && name[len-1] == '1')
+ if(info.uncompressed_size > (CMemory::MAX_ROM_SIZE + 512))
+ {
+ port = unzGoToNextFile(file);
+ continue;
+ }
+
+ if ((int) info.uncompressed_size > filesize)
+ {
+ strcpy(filename,name);
+ filesize = info.uncompressed_size;
+ }
+
+ int len = strlen(name);
+ if(name[len-2] == '.' && name[len-1] == '1')
+ {
+ strcpy(filename,name);
+ filesize = info.uncompressed_size;
+ break;
+ }
+
+ port = unzGoToNextFile(file);
+ }
+ if( !(port == UNZ_END_OF_LIST_OF_FILE || port == UNZ_OK) || filesize == 0)
{
- strcpy(filename,name);
- filesize = info.uncompressed_size;
- break;
+ unzClose(file);
+ return FALSE;
}
- port = unzGoToNextFile(file);
- }
- if( !(port == UNZ_END_OF_LIST_OF_FILE || port == UNZ_OK) || filesize == 0)
- {
- unzClose(file);
- return (FALSE);
- }
- // Find extension
- char tmp[2];
- tmp[0] = tmp[1] = 0;
- char *ext = strrchr(filename,'.');
- if(ext) ext++;
- else ext = tmp;
-
+ // Find extension
+ char tmp[2] = { '\0', '\0' };
+ char *ext = strrchr(filename, '.');
+ if (ext) ext++;
+ else ext = tmp;
+
uint8 *ptr = Memory.ROM;
bool8 more = FALSE;
unzLocateFile(file,filename,1);
unzGetCurrentFileInfo(file, &info, filename,128, NULL,0, NULL,0);
-
+
if( unzOpenCurrentFile(file) != UNZ_OK )
{
- unzClose(file);
- return (FALSE);
+ unzClose(file);
+ return FALSE;
}
do
{
-// assert(info.uncompressed_size <= CMemory::MAX_ROM_SIZE + 512);
- int FileSize = info.uncompressed_size;
-
- int calc_size = FileSize / 0x2000;
- calc_size *= 0x2000;
-
- int l = unzReadCurrentFile(file,ptr,FileSize);
- if(unzCloseCurrentFile(file) == UNZ_CRCERROR)
- {
- unzClose(file);
- return (FALSE);
- }
-
- if(l <= 0 || l != FileSize)
- {
- unzClose(file);
- switch(l)
- {
- case UNZ_ERRNO:
- break;
- case UNZ_EOF:
- break;
- case UNZ_PARAMERROR:
- break;
- case UNZ_BADZIPFILE:
- break;
- case UNZ_INTERNALERROR:
- break;
- case UNZ_CRCERROR:
- break;
- }
- return (FALSE);
- }
+ int FileSize = info.uncompressed_size;
+ assert(FileSize <= CMemory::MAX_ROM_SIZE + 512);
- if ((FileSize - calc_size == 512 && !Settings.ForceNoHeader) ||
- Settings.ForceHeader)
- {
- memmove (ptr, ptr + 512, calc_size);
- (*headers)++;
- FileSize -= 512;
- }
- ptr += FileSize;
- (*TotalFileSize) += FileSize;
+ int calc_size = FileSize / 0x2000;
+ calc_size *= 0x2000;
- int len;
- if (ptr - Memory.ROM < CMemory::MAX_ROM_SIZE + 0x200 &&
- (isdigit (ext [0]) && ext [1] == 0 && ext [0] < '9'))
- {
- more = TRUE;
- ext [0]++;
- }
- else if (ptr - Memory.ROM < CMemory::MAX_ROM_SIZE + 0x200 &&
- (((len = strlen (filename)) == 7 || len == 8) &&
- strncasecmp (filename, "sf", 2) == 0 &&
- isdigit (filename [2]) && isdigit (filename [3]) && isdigit (filename [4]) &&
- isdigit (filename [5]) && isalpha (filename [len - 1])))
- {
- more = TRUE;
- filename [len - 1]++;
- }
- else
- more = FALSE;
+ int l = unzReadCurrentFile(file,ptr,FileSize);
+ if(unzCloseCurrentFile(file) == UNZ_CRCERROR)
+ {
+ unzClose(file);
+ return FALSE;
+ }
+
+ if (l <= 0 || l != FileSize)
+ {
+ unzClose(file);
+ switch(l)
+ {
+ case UNZ_ERRNO:
+ break;
+ case UNZ_EOF:
+ break;
+ case UNZ_PARAMERROR:
+ break;
+ case UNZ_BADZIPFILE:
+ break;
+ case UNZ_INTERNALERROR:
+ break;
+ case UNZ_CRCERROR:
+ break;
+ }
+ return FALSE;
+ }
+
+ if ((FileSize - calc_size == 512 && !Settings.ForceNoHeader) ||
+ Settings.ForceHeader)
+ {
+ memmove (ptr, ptr + 512, calc_size);
+ (*headers)++;
+ FileSize -= 512;
+ }
+ ptr += FileSize;
+ (*TotalFileSize) += FileSize;
+
+ int len;
+ if (ptr - Memory.ROM < CMemory::MAX_ROM_SIZE + 0x200 &&
+ (isdigit (ext [0]) && ext [1] == 0 && ext [0] < '9'))
+ {
+ more = TRUE;
+ ext [0]++;
+ }
+ else if (ptr - Memory.ROM < CMemory::MAX_ROM_SIZE + 0x200 &&
+ (((len = strlen (filename)) == 7 || len == 8) &&
+ strncasecmp (filename, "sf", 2) == 0 &&
+ isdigit (filename [2]) && isdigit (filename [3]) && isdigit (filename [4]) &&
+ isdigit (filename [5]) && isalpha (filename [len - 1])))
+ {
+ more = TRUE;
+ filename [len - 1]++;
+ }
+ else
+ more = FALSE;
- if(more)
- {
- if( unzLocateFile(file,filename,1) != UNZ_OK ||
- unzGetCurrentFileInfo(file, &info, filename,128, NULL,0, NULL,0) != UNZ_OK ||
- unzOpenCurrentFile(file) != UNZ_OK)
- break;
- }
+ if(more)
+ {
+ if (unzLocateFile(file,filename,1) != UNZ_OK ||
+ unzGetCurrentFileInfo(file, &info, filename,128, NULL,0, NULL,0) != UNZ_OK ||
+ unzOpenCurrentFile(file) != UNZ_OK)
+ break;
+ }
} while(more);
unzClose(file);
- return (TRUE);
+ return TRUE;
}
#endif
projects / drnoksnes / blobdiff