mirror of
https://github.com/UberGames/lilium-voyager.git
synced 2024-12-14 14:11:15 +00:00
550 lines
8.1 KiB
C++
Executable file
550 lines
8.1 KiB
C++
Executable file
//
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// start of shared cmdlib stuff
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//
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#include "cmdlib.h"
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#include "windows.h"
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#define PATHSEPERATOR '/'
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// rad additions
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// 11.29.99
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PFN_ERR *g_pfnError = NULL;
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PFN_PRINTF *g_pfnPrintf = NULL;
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PFN_ERR_NUM *g_pfnErrorNum = NULL;
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PFN_PRINTF_NUM *g_pfnPrintfNum = NULL;
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void Error(const char *pFormat, ...)
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{
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if (g_pfnError)
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{
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va_list arg_ptr;
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va_start(arg_ptr, pFormat);
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g_pfnError(pFormat, arg_ptr);
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va_end(arg_ptr);
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}
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}
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void Printf(const char *pFormat, ...)
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{
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if (g_pfnPrintf)
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{
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va_list arg_ptr;
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va_start(arg_ptr, pFormat);
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g_pfnPrintf(pFormat, arg_ptr);
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va_end(arg_ptr);
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}
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}
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void ErrorNum(int nErr, const char *pFormat, ...)
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{
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if (g_pfnErrorNum)
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{
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va_list arg_ptr;
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va_start(arg_ptr, pFormat);
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g_pfnErrorNum(nErr, pFormat, arg_ptr);
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va_end(arg_ptr);
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}
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}
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void PrintfNum(int nErr, const char *pFormat, ...)
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{
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if (g_pfnPrintfNum)
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{
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va_list arg_ptr;
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va_start(arg_ptr, pFormat);
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g_pfnPrintfNum(nErr, pFormat, arg_ptr);
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va_end(arg_ptr);
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}
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}
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void SetErrorHandler(PFN_ERR pe)
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{
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g_pfnError = pe;
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}
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void SetPrintfHandler(PFN_PRINTF pe)
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{
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g_pfnPrintf = pe;
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}
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void SetErrorHandlerNum(PFN_ERR_NUM pe)
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{
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g_pfnErrorNum = pe;
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}
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void SetPrintfHandler(PFN_PRINTF_NUM pe)
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{
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g_pfnPrintfNum = pe;
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}
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// rad end
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#define MEM_BLOCKSIZE 4096
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void* qblockmalloc(size_t nSize)
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{
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void *b;
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// round up to threshold
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int nAllocSize = nSize % MEM_BLOCKSIZE;
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if ( nAllocSize > 0)
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{
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nSize += MEM_BLOCKSIZE - nAllocSize;
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}
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b = malloc(nSize + 1);
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memset (b, 0, nSize);
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return b;
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}
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void* qmalloc (size_t nSize)
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{
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void *b;
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b = malloc(nSize + 1);
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memset (b, 0, nSize);
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return b;
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}
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/*
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================
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Q_filelength
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================
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*/
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int Q_filelength (FILE *f)
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{
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int pos;
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int end;
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pos = ftell (f);
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fseek (f, 0, SEEK_END);
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end = ftell (f);
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fseek (f, pos, SEEK_SET);
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return end;
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}
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// FIXME: need error handler
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FILE *SafeOpenWrite (const char *filename)
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{
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FILE *f;
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f = fopen(filename, "wb");
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if (!f)
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{
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Error ("Error opening %s: %s",filename,strerror(errno));
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}
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return f;
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}
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FILE *SafeOpenRead (const char *filename)
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{
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FILE *f;
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f = fopen(filename, "rb");
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if (!f)
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{
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Error ("Error opening %s: %s",filename,strerror(errno));
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}
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return f;
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}
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void SafeRead (FILE *f, void *buffer, int count)
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{
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if ( (int)fread (buffer, 1, count, f) != count)
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Error ("File read failure");
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}
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void SafeWrite (FILE *f, const void *buffer, int count)
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{
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if ( (int)fwrite (buffer, 1, count, f) != count)
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Error ("File read failure");
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}
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/*
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==============
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LoadFile
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==============
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*/
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int LoadFile (const char *filename, void **bufferptr)
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{
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FILE *f;
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int length;
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void *buffer;
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*bufferptr = NULL;
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if (filename == NULL || strlen(filename) == 0)
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{
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return -1;
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}
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f = fopen (filename, "rb");
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if (!f)
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{
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return -1;
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}
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length = Q_filelength (f);
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buffer = qblockmalloc (length+1);
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((char *)buffer)[length] = 0;
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SafeRead (f, buffer, length);
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fclose (f);
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*bufferptr = buffer;
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return length;
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}
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/*
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==============
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LoadFileNoCrash
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returns -1 length if not present
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==============
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*/
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int LoadFileNoCrash (const char *filename, void **bufferptr)
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{
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FILE *f;
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int length;
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void *buffer;
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f = fopen (filename, "rb");
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if (!f)
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return -1;
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length = Q_filelength (f);
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buffer = qmalloc (length+1);
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((char *)buffer)[length] = 0;
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SafeRead (f, buffer, length);
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fclose (f);
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*bufferptr = buffer;
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return length;
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}
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/*
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==============
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SaveFile
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==============
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*/
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void SaveFile (const char *filename, void *buffer, int count)
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{
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FILE *f;
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f = SafeOpenWrite (filename);
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SafeWrite (f, buffer, count);
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fclose (f);
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}
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void DefaultExtension (char *path, char *extension)
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{
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char *src;
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//
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// if path doesn't have a .EXT, append extension
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// (extension should include the .)
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//
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src = path + strlen(path) - 1;
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while (*src != PATHSEPERATOR && src != path)
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{
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if (*src == '.')
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return; // it has an extension
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src--;
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}
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strcat (path, extension);
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}
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void DefaultPath (char *path, char *basepath)
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{
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char temp[128];
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if (path[0] == PATHSEPERATOR)
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return; // absolute path location
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strcpy (temp,path);
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strcpy (path,basepath);
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strcat (path,temp);
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}
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void StripFilename (char *path)
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{
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int length;
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length = strlen(path)-1;
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while (length > 0 && path[length] != PATHSEPERATOR)
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length--;
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path[length] = 0;
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}
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void StripExtension (char *path)
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{
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int length;
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length = strlen(path)-1;
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while (length > 0 && path[length] != '.')
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{
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length--;
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if (path[length] == '/')
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return; // no extension
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}
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if (length)
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path[length] = 0;
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}
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/*
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====================
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Extract file parts
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====================
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*/
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void ExtractFilePath (const char *path, char *dest)
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{
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const char *src;
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src = path + strlen(path) - 1;
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//
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// back up until a \ or the start
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//
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while (src != path && *(src-1) != PATHSEPERATOR)
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src--;
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memcpy (dest, path, src-path);
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dest[src-path] = 0;
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}
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void ExtractFileName (const char *path, char *dest)
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{
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const char *src;
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src = path + strlen(path) - 1;
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//
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// back up until a \ or the start
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//
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while (src != path && *(src-1) != '/'
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&& *(src-1) != '\\' )
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src--;
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while (*src)
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{
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*dest++ = *src++;
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}
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*dest = 0;
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}
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void ExtractFileBase (const char *path, char *dest)
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{
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const char *src;
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src = path + strlen(path) - 1;
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//
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// back up until a \ or the start
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//
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while (src != path && *(src-1) != '/'
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&& *(src-1) != '\\' )
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src--;
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while (*src && *src != '.')
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{
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*dest++ = *src++;
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}
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*dest = 0;
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}
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void ExtractFileExtension (const char *path, char *dest)
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{
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const char *src;
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src = path + strlen(path) - 1;
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//
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// back up until a . or the start
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//
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while (src != path && *(src-1) != '.')
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src--;
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if (src == path)
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{
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*dest = 0; // no extension
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return;
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}
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strcpy (dest,src);
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}
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void ConvertDOSToUnixName( char *dst, const char *src )
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{
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while ( *src )
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{
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if ( *src == '\\' )
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*dst = '/';
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else
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*dst = *src;
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dst++; src++;
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}
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*dst = 0;
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}
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char* StrDup(char* pStr)
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{
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if (pStr)
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{
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return strcpy(new char[strlen(pStr)+1], pStr);
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}
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return NULL;
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}
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char* StrDup(const char* pStr)
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{
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if (pStr)
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{
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return strcpy(new char[strlen(pStr)+1], pStr);
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}
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return NULL;
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}
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/*
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============================================================================
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BYTE ORDER FUNCTIONS
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============================================================================
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*/
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#ifdef _SGI_SOURCE
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#define __BIG_ENDIAN__
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#endif
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#ifdef __BIG_ENDIAN__
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short LittleShort (short l)
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{
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byte b1,b2;
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b1 = l&255;
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b2 = (l>>8)&255;
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return (b1<<8) + b2;
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}
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short BigShort (short l)
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{
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return l;
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}
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int LittleLong (int l)
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{
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byte b1,b2,b3,b4;
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b1 = l&255;
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b2 = (l>>8)&255;
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b3 = (l>>16)&255;
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b4 = (l>>24)&255;
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return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
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}
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int BigLong (int l)
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{
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return l;
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}
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float LittleFloat (float l)
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{
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union {byte b[4]; float f;} in, out;
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in.f = l;
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out.b[0] = in.b[3];
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out.b[1] = in.b[2];
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out.b[2] = in.b[1];
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out.b[3] = in.b[0];
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return out.f;
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}
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float BigFloat (float l)
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{
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return l;
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}
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#else
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short BigShort (short l)
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{
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byte b1,b2;
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b1 = l&255;
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b2 = (l>>8)&255;
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return (b1<<8) + b2;
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}
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short LittleShort (short l)
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{
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return l;
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}
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int BigLong (int l)
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{
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byte b1,b2,b3,b4;
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b1 = l&255;
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b2 = (l>>8)&255;
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b3 = (l>>16)&255;
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b4 = (l>>24)&255;
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return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
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}
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int LittleLong (int l)
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{
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return l;
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}
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float BigFloat (float l)
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{
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union {byte b[4]; float f;} in, out;
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in.f = l;
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out.b[0] = in.b[3];
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out.b[1] = in.b[2];
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out.b[2] = in.b[1];
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out.b[3] = in.b[0];
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return out.f;
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}
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float LittleFloat (float l)
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{
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return l;
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}
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#endif
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