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fteqw/engine/qclib/qcc_cmdlib.c
Spoike 1693ba6c58 revamped fog to use glsl. shouldn't harm framerate quite so much.
tweeked d3d renderer. certain shader constructs might be broken now so don't try q3 with it, but framerates are up when playing quake.
tweeked gl rendering too, timedemo results seem a little higher also.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@3933 fc73d0e0-1445-4013-8a0c-d673dee63da5
2011-12-23 03:12:29 +00:00

918 lines
15 KiB
C

// cmdlib.c
#include "qcc.h"
#include <ctype.h>
//#include <sys/time.h>
#define PATHSEPERATOR '/'
#ifndef QCC
extern jmp_buf qcccompileerror;
#endif
// set these before calling CheckParm
int myargc;
char **myargv;
char qcc_token[1024];
int qcc_eof;
const unsigned int type_size[12] = {1, //void
sizeof(string_t)/4, //string
1, //float
3, //vector
1, //entity
1, //field
sizeof(func_t)/4,//function
1, //pointer (its an int index)
1, //integer
3, //fixme: how big should a variant be?
0, //ev_struct. variable sized.
0 //ev_union. variable sized.
};
/*
============================================================================
BYTE ORDER FUNCTIONS
============================================================================
*/
short (*PRBigShort) (short l);
short (*PRLittleShort) (short l);
int (*PRBigLong) (int l);
int (*PRLittleLong) (int l);
float (*PRBigFloat) (float l);
float (*PRLittleFloat) (float l);
short QCC_SwapShort (short l)
{
qbyte b1,b2;
b1 = l&255;
b2 = (l>>8)&255;
return (b1<<8) + b2;
}
short QCC_Short (short l)
{
return l;
}
int QCC_SwapLong (int l)
{
qbyte b1,b2,b3,b4;
b1 = (qbyte)l;
b2 = (qbyte)(l>>8);
b3 = (qbyte)(l>>16);
b4 = (qbyte)(l>>24);
return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
}
int QCC_Long (int l)
{
return l;
}
float QCC_SwapFloat (float l)
{
union {qbyte b[4]; float f;} in, out;
in.f = l;
out.b[0] = in.b[3];
out.b[1] = in.b[2];
out.b[2] = in.b[1];
out.b[3] = in.b[0];
return out.f;
}
float QCC_Float (float l)
{
return l;
}
void SetEndian(void)
{
union {qbyte b[2]; unsigned short s;} ed;
ed.s = 255;
if (ed.b[0] == 255)
{
PRBigShort = QCC_SwapShort;
PRLittleShort = QCC_Short;
PRBigLong = QCC_SwapLong;
PRLittleLong = QCC_Long;
PRBigFloat = QCC_SwapFloat;
PRLittleFloat = QCC_Float;
}
else
{
PRBigShort = QCC_Short;
PRLittleShort = QCC_SwapShort;
PRBigLong = QCC_Long;
PRLittleLong = QCC_SwapLong;
PRBigFloat = QCC_Float;
PRLittleFloat = QCC_SwapFloat;
}
}
#ifndef MINIMAL
/*
================
I_FloatTime
================
*/
/*
double I_FloatTime (void)
{
struct timeval tp;
struct timezone tzp;
static int secbase;
gettimeofday(&tp, &tzp);
if (!secbase)
{
secbase = tp.tv_sec;
return tp.tv_usec/1000000.0;
}
return (tp.tv_sec - secbase) + tp.tv_usec/1000000.0;
}
*/
#ifdef QCC
int QC_strncasecmp (const char *s1, const char *s2, int n)
{
int c1, c2;
while (1)
{
c1 = *s1++;
c2 = *s2++;
if (!n--)
return 0; // strings are equal until end point
if (c1 != c2)
{
if (c1 >= 'a' && c1 <= 'z')
c1 -= ('a' - 'A');
if (c2 >= 'a' && c2 <= 'z')
c2 -= ('a' - 'A');
if (c1 != c2)
return -1; // strings not equal
}
if (!c1)
return 0; // strings are equal
// s1++;
// s2++;
}
return -1;
}
int QC_strcasecmp (const char *s1, const char *s2)
{
return QC_strncasecmp(s1, s2, 0x7fffffff);
}
#else
int QC_strncasecmp(const char *s1, const char *s2, int n);
int QC_strcasecmp (const char *s1, const char *s2)
{
return QC_strncasecmp(s1, s2, 0x7fffffff);
}
#endif
#endif //minimal
/*
==============
COM_Parse
Parse a token out of a string
==============
*/
char *QCC_COM_Parse (char *data)
{
int c;
int len;
len = 0;
qcc_token[0] = 0;
if (!data)
return NULL;
// skip whitespace
skipwhite:
while ( (c = *data) <= ' ')
{
if (c == 0)
{
qcc_eof = true;
return NULL; // end of file;
}
data++;
}
// skip // comments
if (c=='/' && data[1] == '/')
{
while (*data && *data != '\n')
data++;
goto skipwhite;
}
// skip /* comments
if (c=='/' && data[1] == '*')
{
while (data[1] && (data[0] != '*' || data[1] != '/'))
data++;
data+=2;
goto skipwhite;
}
// handle quoted strings specially
if (c == '\"')
{
data++;
do
{
c = *data++;
if (c=='\\' && *data == '\"')
c = *data++; //allow C-style string escapes
else if (c=='\\' && *data == '\\')
c = *data++; // \ is now a special character so it needs to be marked up using itself
else if (c=='\\' && *data == 'n')
{ // and do new lines while we're at it.
c = '\n';
data++;
}
else if (c=='\"')
{
qcc_token[len] = 0;
return data;
}
else if (c=='\0'||c=='\n')
{
qcc_token[len] = 0;
return data;
}
qcc_token[len] = c;
len++;
} while (1);
}
// parse single characters
if (c=='{' || c=='}'|| c==')'|| c=='(' || c=='\'' || c==':' || c==',')
{
qcc_token[len] = c;
len++;
qcc_token[len] = 0;
return data+1;
}
// parse a regular word
do
{
qcc_token[len] = c;
data++;
len++;
c = *data;
if (c=='{' || c=='}'|| c==')'|| c=='(' || c=='\'' || c==':' || c=='\"' || c==',')
break;
} while (c>32);
qcc_token[len] = 0;
return data;
}
//more C tokens...
char *QCC_COM_Parse2 (char *data)
{
int c;
int len;
len = 0;
qcc_token[0] = 0;
if (!data)
return NULL;
// skip whitespace
skipwhite:
while ( (c = *data) <= ' ')
{
if (c == 0)
{
qcc_eof = true;
return NULL; // end of file;
}
data++;
}
// skip // comments
if (c=='/' && data[1] == '/')
{
while (*data && *data != '\n')
data++;
goto skipwhite;
}
// handle quoted strings specially
if (c == '\"')
{
data++;
do
{
c = *data++;
if (c=='\\' && *data == '\"')
c = *data++; //allow C-style string escapes
else if (c=='\\' && *data == '\\')
c = *data++; // \ is now a special character so it needs to be marked up using itself
else if (c=='\\' && *data == 'n')
{ // and do new lines while we're at it.
c = '\n';
data++;
}
else if (c=='\"'||c=='\0')
qcc_token[len] = c;
len++;
} while (1);
}
// parse numbers
if (c >= '0' && c <= '9')
{
if (c == '0' && data[1] == 'x')
{ //parse hex
qcc_token[0] = '0';
c='x';
len=1;
data++;
for(;;)
{ //parse regular number
qcc_token[len] = c;
data++;
len++;
c = *data;
if ((c<'0'|| c>'9') && (c<'a'||c>'f') && (c<'A'||c>'F') && c != '.')
break;
}
}
else
{
for(;;)
{ //parse regular number
qcc_token[len] = c;
data++;
len++;
c = *data;
if ((c<'0'|| c>'9') && c != '.')
break;
}
}
qcc_token[len] = 0;
return data;
}
// parse words
else if ((c>= 'a' && c <= 'z') || (c>= 'A' && c <= 'Z') || c == '_')
{
do
{
qcc_token[len] = c;
data++;
len++;
c = *data;
} while ((c>= 'a' && c <= 'z') || (c>= 'A' && c <= 'Z') || c == '_');
qcc_token[len] = 0;
return data;
}
else
{
qcc_token[len] = c;
len++;
qcc_token[len] = 0;
return data+1;
}
}
char *VARGS qcva (char *text, ...)
{
va_list argptr;
static char msg[2048];
va_start (argptr,text);
QC_vsnprintf (msg,sizeof(msg)-1, text,argptr);
va_end (argptr);
return msg;
}
#ifndef MINIMAL
char *QC_strupr (char *start)
{
char *in;
in = start;
while (*in)
{
*in = toupper(*in);
in++;
}
return start;
}
char *QC_strlower (char *start)
{
char *in;
in = start;
while (*in)
{
*in = tolower(*in);
in++;
}
return start;
}
/*
=============================================================================
MISC FUNCTIONS
=============================================================================
*/
/*
=================
Error
For abnormal program terminations
=================
*/
void VARGS QCC_Error (int errortype, const char *error, ...)
{
extern int numsourcefiles;
va_list argptr;
char msg[2048];
va_start (argptr,error);
QC_vsnprintf (msg,sizeof(msg)-1, error,argptr);
va_end (argptr);
printf ("\n************ ERROR ************\n%s\n", msg);
editbadfile(strings+s_file, pr_source_line);
numsourcefiles = 0;
#ifndef QCC
longjmp(qcccompileerror, 1);
#else
print ("Press any key\n");
getch();
#endif
exit (1);
}
/*
=================
CheckParm
Checks for the given parameter in the program's command line arguments
Returns the argument number (1 to argc-1) or 0 if not present
=================
*/
int QCC_CheckParm (char *check)
{
int i;
for (i = 1;i<myargc;i++)
{
if ( !QC_strcasecmp(check, myargv[i]) )
return i;
}
return 0;
}
/*
#ifndef O_BINARY
#define O_BINARY 0
#endif
#ifdef QCC
int SafeOpenWrite (char *filename)
{
int handle;
umask (0);
handle = open(filename,O_WRONLY | O_CREAT | O_TRUNC | O_BINARY
, 0666);
if (handle == -1)
QCC_Error ("Error opening %s: %s",filename,strerror(errno));
return handle;
}
#endif
int SafeOpenRead (char *filename)
{
int handle;
handle = open(filename,O_RDONLY | O_BINARY);
if (handle == -1)
QCC_Error ("Error opening %s: %s",filename,strerror(errno));
return handle;
}
void SafeRead (int handle, void *buffer, long count)
{
if (read (handle,buffer,count) != count)
QCC_Error ("File read failure");
}
#ifdef QCC
void SafeWrite (int handle, void *buffer, long count)
{
if (write (handle,buffer,count) != count)
QCC_Error ("File write failure");
}
#endif
void *SafeMalloc (long size)
{
void *ptr;
ptr = (void *)Hunk_Alloc (size);
if (!ptr)
QCC_Error ("Malloc failure for %lu bytes",size);
return ptr;
}
*/
void DefaultExtension (char *path, char *extension)
{
char *src;
//
// if path doesn't have a .EXT, append extension
// (extension should include the .)
//
src = path + strlen(path) - 1;
while (*src != PATHSEPERATOR && src != path)
{
if (*src == '.')
return; // it has an extension
src--;
}
strcat (path, extension);
}
void DefaultPath (char *path, char *basepath)
{
char temp[128];
if (path[0] == PATHSEPERATOR)
return; // absolute path location
strcpy (temp,path);
strcpy (path,basepath);
strcat (path,temp);
}
void StripFilename (char *path)
{
int length;
length = strlen(path)-1;
while (length > 0 && path[length] != PATHSEPERATOR)
length--;
path[length] = 0;
}
/*
====================
Extract file parts
====================
*/
void ExtractFilePath (char *path, char *dest)
{
char *src;
src = path + strlen(path) - 1;
//
// back up until a \ or the start
//
while (src != path && *(src-1) != PATHSEPERATOR)
src--;
memcpy (dest, path, src-path);
dest[src-path] = 0;
}
void ExtractFileBase (char *path, char *dest)
{
char *src;
src = path + strlen(path) - 1;
//
// back up until a \ or the start
//
while (src != path && *(src-1) != PATHSEPERATOR)
src--;
while (*src && *src != '.')
{
*dest++ = *src++;
}
*dest = 0;
}
void ExtractFileExtension (char *path, char *dest)
{
char *src;
src = path + strlen(path) - 1;
//
// back up until a . or the start
//
while (src != path && *(src-1) != '.')
src--;
if (src == path)
{
*dest = 0; // no extension
return;
}
strcpy (dest,src);
}
/*
==============
ParseNum / ParseHex
==============
*/
long ParseHex (char *hex)
{
char *str;
long num;
num = 0;
str = hex;
while (*str)
{
num <<= 4;
if (*str >= '0' && *str <= '9')
num += *str-'0';
else if (*str >= 'a' && *str <= 'f')
num += 10 + *str-'a';
else if (*str >= 'A' && *str <= 'F')
num += 10 + *str-'A';
else
QCC_Error (ERR_BADHEX, "Bad hex number: %s",hex);
str++;
}
return num;
}
long ParseNum (char *str)
{
if (str[0] == '$')
return ParseHex (str+1);
if (str[0] == '0' && str[1] == 'x')
return ParseHex (str+2);
return atol (str);
}
//buffer size and max size are different. buffer is bigger.
#define MAXQCCFILES 3
struct {
char name[64];
char *buff;
// int buffismalloc;
int buffsize;
int ofs;
int maxofs;
} qccfile[MAXQCCFILES];
int SafeOpenWrite (char *filename, int maxsize)
{
int i;
for (i = 0; i < MAXQCCFILES; i++)
{
if (!qccfile[i].buff)
{
strcpy(qccfile[i].name, filename);
qccfile[i].buffsize = maxsize;
qccfile[i].maxofs = 0;
qccfile[i].ofs = 0;
// if (maxsize > 8192)
// qccfile[i].buffismalloc = 1;
// else
// qccfile[i].buffismalloc = 0;
// if (qccfile[i].buffismalloc)
qccfile[i].buff = malloc(qccfile[i].buffsize);
// else
// qccfile[i].buff = memalloc(qccfile[i].buffsize);
return i;
}
}
QCC_Error(ERR_TOOMANYOPENFILES, "Too many open files on file %s", filename);
return -1;
}
void ResizeBuf(int hand, int newsize)
{
// int wasmal = qccfile[hand].buffismalloc;
char *nb;
if (qccfile[hand].buffsize >= newsize)
return; //already big enough
// if (newsize > 8192)
// {
// qccfile[hand].buffismalloc = true;
nb = malloc(newsize);
// }
// else
// {
// qccfile[hand].buffismalloc = false;
// nb = memalloc(newsize);
// }
memcpy(nb, qccfile[hand].buff, qccfile[hand].maxofs);
// if (wasmal)
free(qccfile[hand].buff);
// else
// memfree(qccfile[hand].buff);
qccfile[hand].buff = nb;
qccfile[hand].buffsize = newsize;
}
void SafeWrite(int hand, void *buf, long count)
{
if (qccfile[hand].ofs +count >= qccfile[hand].buffsize)
ResizeBuf(hand, qccfile[hand].ofs + count+(64*1024));
memcpy(&qccfile[hand].buff[qccfile[hand].ofs], buf, count);
qccfile[hand].ofs+=count;
if (qccfile[hand].ofs > qccfile[hand].maxofs)
qccfile[hand].maxofs = qccfile[hand].ofs;
}
int SafeSeek(int hand, int ofs, int mode)
{
if (mode == SEEK_CUR)
return qccfile[hand].ofs;
else
{
ResizeBuf(hand, ofs+1024);
qccfile[hand].ofs = ofs;
if (qccfile[hand].ofs > qccfile[hand].maxofs)
qccfile[hand].maxofs = qccfile[hand].ofs;
return 0;
}
}
void SafeClose(int hand)
{
externs->WriteFile(qccfile[hand].name, qccfile[hand].buff, qccfile[hand].maxofs);
// if (qccfile[hand].buffismalloc)
free(qccfile[hand].buff);
// else
// memfree(qccfile[hand].buff);
qccfile[hand].buff = NULL;
}
qcc_cachedsourcefile_t *qcc_sourcefile;
long QCC_LoadFile (char *filename, void **bufferptr)
{
char *mem;
int len;
len = externs->FileSize(filename);
if (len < 0)
{
QCC_Error(ERR_COULDNTOPENFILE, "Couldn't open file %s", filename);
// if (!Abort)
return -1;
// Abort("failed to find file %s", filename);
}
mem = qccHunkAlloc(sizeof(qcc_cachedsourcefile_t) + len+2);
((qcc_cachedsourcefile_t*)mem)->next = qcc_sourcefile;
qcc_sourcefile = (qcc_cachedsourcefile_t*)mem;
qcc_sourcefile->size = len;
mem += sizeof(qcc_cachedsourcefile_t);
strcpy(qcc_sourcefile->filename, filename);
qcc_sourcefile->file = mem;
qcc_sourcefile->type = FT_CODE;
externs->ReadFile(filename, mem, len+2);
mem[len] = '\n';
mem[len+1] = '\0';
*bufferptr=mem;
return len;
}
void QCC_AddFile (char *filename)
{
char *mem;
int len;
len = externs->FileSize(filename);
if (len < 0)
Abort("failed to find file %s", filename);
mem = qccHunkAlloc(sizeof(qcc_cachedsourcefile_t) + len+1);
((qcc_cachedsourcefile_t*)mem)->next = qcc_sourcefile;
qcc_sourcefile = (qcc_cachedsourcefile_t*)mem;
qcc_sourcefile->size = len;
mem += sizeof(qcc_cachedsourcefile_t);
strcpy(qcc_sourcefile->filename, filename);
qcc_sourcefile->file = mem;
qcc_sourcefile->type = FT_DATA;
externs->ReadFile(filename, mem, len+1);
mem[len] = '\0';
}
void *FS_ReadToMem(char *filename, void *mem, int *len)
{
if (!mem)
{
*len = externs->FileSize(filename);
mem = memalloc(*len);
}
return externs->ReadFile(filename, mem, *len);
}
void FS_CloseFromMem(void *mem)
{
memfree(mem);
}
#endif
void StripExtension (char *path)
{
int length;
length = strlen(path)-1;
while (length > 0 && path[length] != '.')
{
length--;
if (path[length] == '/')
return; // no extension
}
if (length)
path[length] = 0;
}