]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - common.c
qw support is 99% working
[xonotic/darkplaces.git] / common.c
index 55623fa3eb7396c32be7c5c441c8e83bd5f39c6c..efea48511f9f20c4e4951563c91cabd8fe37159e 100644 (file)
--- a/common.c
+++ b/common.c
@@ -27,23 +27,23 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "quakedef.h"
 
-cvar_t registered = {0, "registered","0"};
-cvar_t cmdline = {0, "cmdline","0"};
+cvar_t registered = {0, "registered","0", "indicates if this is running registered quake (whether gfx/qpop.lmp was found)"};
+cvar_t cmdline = {0, "cmdline","0", "contains commandline the engine was launched with"};
 
 extern qboolean fs_modified;   // set true if using non-id files
 
-char com_token[1024];
+char com_token[MAX_INPUTLINE];
 int com_argc;
 const char **com_argv;
 
-// LordHavoc: made commandline 1024 characters instead of 256
-#define CMDLINE_LENGTH 1024
-char com_cmdline[CMDLINE_LENGTH];
+char com_cmdline[MAX_INPUTLINE];
 
-int gamemode;
+gamemode_t gamemode;
 const char *gamename;
-const char *gamedirname;
+const char *gamedirname1;
+const char *gamedirname2;
 const char *gamescreenshotname;
+const char *gameuserdirname;
 char com_modname[MAX_OSPATH] = "";
 
 
@@ -57,7 +57,7 @@ char com_modname[MAX_OSPATH] = "";
 
 short   ShortSwap (short l)
 {
-       qbyte    b1,b2;
+       unsigned char    b1,b2;
 
        b1 = l&255;
        b2 = (l>>8)&255;
@@ -67,7 +67,7 @@ short   ShortSwap (short l)
 
 int    LongSwap (int l)
 {
-       qbyte    b1,b2,b3,b4;
+       unsigned char    b1,b2,b3,b4;
 
        b1 = l&255;
        b2 = (l>>8)&255;
@@ -82,7 +82,7 @@ float FloatSwap (float f)
        union
        {
                float   f;
-               qbyte    b[4];
+               unsigned char    b[4];
        } dat1, dat2;
 
 
@@ -97,27 +97,146 @@ float FloatSwap (float f)
 
 // Extract integers from buffers
 
-unsigned int BuffBigLong (const qbyte *buffer)
+unsigned int BuffBigLong (const unsigned char *buffer)
 {
        return (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3];
 }
 
-unsigned short BuffBigShort (const qbyte *buffer)
+unsigned short BuffBigShort (const unsigned char *buffer)
 {
        return (buffer[0] << 8) | buffer[1];
 }
 
-unsigned int BuffLittleLong (const qbyte *buffer)
+unsigned int BuffLittleLong (const unsigned char *buffer)
 {
        return (buffer[3] << 24) | (buffer[2] << 16) | (buffer[1] << 8) | buffer[0];
 }
 
-unsigned short BuffLittleShort (const qbyte *buffer)
+unsigned short BuffLittleShort (const unsigned char *buffer)
 {
        return (buffer[1] << 8) | buffer[0];
 }
 
 
+/*
+============================================================================
+
+                                       CRC FUNCTIONS
+
+============================================================================
+*/
+
+// this is a 16 bit, non-reflected CRC using the polynomial 0x1021
+// and the initial and final xor values shown below...  in other words, the
+// CCITT standard CRC used by XMODEM
+
+#define CRC_INIT_VALUE 0xffff
+#define CRC_XOR_VALUE  0x0000
+
+static unsigned short crctable[256] =
+{
+       0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
+       0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
+       0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
+       0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
+       0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
+       0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
+       0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
+       0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
+       0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
+       0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
+       0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
+       0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
+       0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
+       0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
+       0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
+       0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
+       0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
+       0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
+       0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
+       0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
+       0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
+       0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
+       0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
+       0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
+       0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
+       0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
+       0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
+       0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
+       0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
+       0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
+       0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
+       0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
+};
+
+unsigned short CRC_Block(const unsigned char *data, size_t size)
+{
+       unsigned short crc = CRC_INIT_VALUE;
+       while (size--)
+               crc = (crc << 8) ^ crctable[(crc >> 8) ^ (*data++)];
+       return crc ^ CRC_XOR_VALUE;
+}
+
+// QuakeWorld
+static unsigned char chktbl[1024 + 4] =
+{
+       0x78,0xd2,0x94,0xe3,0x41,0xec,0xd6,0xd5,0xcb,0xfc,0xdb,0x8a,0x4b,0xcc,0x85,0x01,
+       0x23,0xd2,0xe5,0xf2,0x29,0xa7,0x45,0x94,0x4a,0x62,0xe3,0xa5,0x6f,0x3f,0xe1,0x7a,
+       0x64,0xed,0x5c,0x99,0x29,0x87,0xa8,0x78,0x59,0x0d,0xaa,0x0f,0x25,0x0a,0x5c,0x58,
+       0xfb,0x00,0xa7,0xa8,0x8a,0x1d,0x86,0x80,0xc5,0x1f,0xd2,0x28,0x69,0x71,0x58,0xc3,
+       0x51,0x90,0xe1,0xf8,0x6a,0xf3,0x8f,0xb0,0x68,0xdf,0x95,0x40,0x5c,0xe4,0x24,0x6b,
+       0x29,0x19,0x71,0x3f,0x42,0x63,0x6c,0x48,0xe7,0xad,0xa8,0x4b,0x91,0x8f,0x42,0x36,
+       0x34,0xe7,0x32,0x55,0x59,0x2d,0x36,0x38,0x38,0x59,0x9b,0x08,0x16,0x4d,0x8d,0xf8,
+       0x0a,0xa4,0x52,0x01,0xbb,0x52,0xa9,0xfd,0x40,0x18,0x97,0x37,0xff,0xc9,0x82,0x27,
+       0xb2,0x64,0x60,0xce,0x00,0xd9,0x04,0xf0,0x9e,0x99,0xbd,0xce,0x8f,0x90,0x4a,0xdd,
+       0xe1,0xec,0x19,0x14,0xb1,0xfb,0xca,0x1e,0x98,0x0f,0xd4,0xcb,0x80,0xd6,0x05,0x63,
+       0xfd,0xa0,0x74,0xa6,0x86,0xf6,0x19,0x98,0x76,0x27,0x68,0xf7,0xe9,0x09,0x9a,0xf2,
+       0x2e,0x42,0xe1,0xbe,0x64,0x48,0x2a,0x74,0x30,0xbb,0x07,0xcc,0x1f,0xd4,0x91,0x9d,
+       0xac,0x55,0x53,0x25,0xb9,0x64,0xf7,0x58,0x4c,0x34,0x16,0xbc,0xf6,0x12,0x2b,0x65,
+       0x68,0x25,0x2e,0x29,0x1f,0xbb,0xb9,0xee,0x6d,0x0c,0x8e,0xbb,0xd2,0x5f,0x1d,0x8f,
+       0xc1,0x39,0xf9,0x8d,0xc0,0x39,0x75,0xcf,0x25,0x17,0xbe,0x96,0xaf,0x98,0x9f,0x5f,
+       0x65,0x15,0xc4,0x62,0xf8,0x55,0xfc,0xab,0x54,0xcf,0xdc,0x14,0x06,0xc8,0xfc,0x42,
+       0xd3,0xf0,0xad,0x10,0x08,0xcd,0xd4,0x11,0xbb,0xca,0x67,0xc6,0x48,0x5f,0x9d,0x59,
+       0xe3,0xe8,0x53,0x67,0x27,0x2d,0x34,0x9e,0x9e,0x24,0x29,0xdb,0x69,0x99,0x86,0xf9,
+       0x20,0xb5,0xbb,0x5b,0xb0,0xf9,0xc3,0x67,0xad,0x1c,0x9c,0xf7,0xcc,0xef,0xce,0x69,
+       0xe0,0x26,0x8f,0x79,0xbd,0xca,0x10,0x17,0xda,0xa9,0x88,0x57,0x9b,0x15,0x24,0xba,
+       0x84,0xd0,0xeb,0x4d,0x14,0xf5,0xfc,0xe6,0x51,0x6c,0x6f,0x64,0x6b,0x73,0xec,0x85,
+       0xf1,0x6f,0xe1,0x67,0x25,0x10,0x77,0x32,0x9e,0x85,0x6e,0x69,0xb1,0x83,0x00,0xe4,
+       0x13,0xa4,0x45,0x34,0x3b,0x40,0xff,0x41,0x82,0x89,0x79,0x57,0xfd,0xd2,0x8e,0xe8,
+       0xfc,0x1d,0x19,0x21,0x12,0x00,0xd7,0x66,0xe5,0xc7,0x10,0x1d,0xcb,0x75,0xe8,0xfa,
+       0xb6,0xee,0x7b,0x2f,0x1a,0x25,0x24,0xb9,0x9f,0x1d,0x78,0xfb,0x84,0xd0,0x17,0x05,
+       0x71,0xb3,0xc8,0x18,0xff,0x62,0xee,0xed,0x53,0xab,0x78,0xd3,0x65,0x2d,0xbb,0xc7,
+       0xc1,0xe7,0x70,0xa2,0x43,0x2c,0x7c,0xc7,0x16,0x04,0xd2,0x45,0xd5,0x6b,0x6c,0x7a,
+       0x5e,0xa1,0x50,0x2e,0x31,0x5b,0xcc,0xe8,0x65,0x8b,0x16,0x85,0xbf,0x82,0x83,0xfb,
+       0xde,0x9f,0x36,0x48,0x32,0x79,0xd6,0x9b,0xfb,0x52,0x45,0xbf,0x43,0xf7,0x0b,0x0b,
+       0x19,0x19,0x31,0xc3,0x85,0xec,0x1d,0x8c,0x20,0xf0,0x3a,0xfa,0x80,0x4d,0x2c,0x7d,
+       0xac,0x60,0x09,0xc0,0x40,0xee,0xb9,0xeb,0x13,0x5b,0xe8,0x2b,0xb1,0x20,0xf0,0xce,
+       0x4c,0xbd,0xc6,0x04,0x86,0x70,0xc6,0x33,0xc3,0x15,0x0f,0x65,0x19,0xfd,0xc2,0xd3,
+
+       // map checksum goes here
+       0x00,0x00,0x00,0x00
+};
+
+// QuakeWorld
+unsigned char COM_BlockSequenceCRCByteQW(unsigned char *base, int length, int sequence)
+{
+       unsigned char *p;
+       unsigned char chkb[60 + 4];
+
+       p = chktbl + (sequence % (sizeof(chktbl) - 8));
+
+       if (length > 60)
+               length = 60;
+       memcpy(chkb, base, length);
+
+       chkb[length] = (sequence & 0xff) ^ p[0];
+       chkb[length+1] = p[1];
+       chkb[length+2] = ((sequence>>8) & 0xff) ^ p[2];
+       chkb[length+3] = p[3];
+
+       return CRC_Block(chkb, length + 4) & 0xff;
+}
+
 /*
 ==============================================================================
 
@@ -133,7 +252,7 @@ Handles byte ordering and avoids alignment errors
 
 void MSG_WriteChar (sizebuf_t *sb, int c)
 {
-       qbyte    *buf;
+       unsigned char    *buf;
 
        buf = SZ_GetSpace (sb, 1);
        buf[0] = c;
@@ -141,7 +260,7 @@ void MSG_WriteChar (sizebuf_t *sb, int c)
 
 void MSG_WriteByte (sizebuf_t *sb, int c)
 {
-       qbyte    *buf;
+       unsigned char    *buf;
 
        buf = SZ_GetSpace (sb, 1);
        buf[0] = c;
@@ -149,7 +268,7 @@ void MSG_WriteByte (sizebuf_t *sb, int c)
 
 void MSG_WriteShort (sizebuf_t *sb, int c)
 {
-       qbyte    *buf;
+       unsigned char    *buf;
 
        buf = SZ_GetSpace (sb, 2);
        buf[0] = c&0xff;
@@ -158,7 +277,7 @@ void MSG_WriteShort (sizebuf_t *sb, int c)
 
 void MSG_WriteLong (sizebuf_t *sb, int c)
 {
-       qbyte    *buf;
+       unsigned char    *buf;
 
        buf = SZ_GetSpace (sb, 4);
        buf[0] = c&0xff;
@@ -179,15 +298,21 @@ void MSG_WriteFloat (sizebuf_t *sb, float f)
        dat.f = f;
        dat.l = LittleLong (dat.l);
 
-       SZ_Write (sb, &dat.l, 4);
+       SZ_Write (sb, (unsigned char *)&dat.l, 4);
 }
 
 void MSG_WriteString (sizebuf_t *sb, const char *s)
 {
        if (!s)
-               SZ_Write (sb, "", 1);
+               SZ_Write (sb, (unsigned char *)"", 1);
        else
-               SZ_Write (sb, s, strlen(s)+1);
+               SZ_Write (sb, (unsigned char *)s, (int)strlen(s)+1);
+}
+
+void MSG_WriteUnterminatedString (sizebuf_t *sb, const char *s)
+{
+       if (s)
+               SZ_Write (sb, (unsigned char *)s, (int)strlen(s));
 }
 
 void MSG_WriteCoord13i (sizebuf_t *sb, float f)
@@ -211,19 +336,19 @@ void MSG_WriteCoord32f (sizebuf_t *sb, float f)
        MSG_WriteFloat (sb, f);
 }
 
-void MSG_WriteCoord (sizebuf_t *sb, float f, int protocol)
+void MSG_WriteCoord (sizebuf_t *sb, float f, protocolversion_t protocol)
 {
-       if (protocol == PROTOCOL_QUAKE)
+       if (protocol == PROTOCOL_QUAKE || protocol == PROTOCOL_QUAKEDP || protocol == PROTOCOL_NEHAHRAMOVIE || protocol == PROTOCOL_QUAKEWORLD)
                MSG_WriteCoord13i (sb, f);
-       else if (protocol == PROTOCOL_DARKPLACES1 || protocol == PROTOCOL_DARKPLACES5)
+       else if (protocol == PROTOCOL_DARKPLACES1)
                MSG_WriteCoord32f (sb, f);
        else if (protocol == PROTOCOL_DARKPLACES2 || protocol == PROTOCOL_DARKPLACES3 || protocol == PROTOCOL_DARKPLACES4)
                MSG_WriteCoord16i (sb, f);
        else
-               Host_Error("MSG_WriteCoord: unknown protocol\n");
+               MSG_WriteCoord32f (sb, f);
 }
 
-void MSG_WriteVector (sizebuf_t *sb, float *v, int protocol)
+void MSG_WriteVector (sizebuf_t *sb, float *v, protocolversion_t protocol)
 {
        MSG_WriteCoord (sb, v[0], protocol);
        MSG_WriteCoord (sb, v[1], protocol);
@@ -252,12 +377,12 @@ void MSG_WriteAngle32f (sizebuf_t *sb, float f)
        MSG_WriteFloat (sb, f);
 }
 
-void MSG_WriteAngle (sizebuf_t *sb, float f, int protocol)
+void MSG_WriteAngle (sizebuf_t *sb, float f, protocolversion_t protocol)
 {
-       if (protocol == PROTOCOL_DARKPLACES5)
-               MSG_WriteAngle16i (sb, f);
-       else
+       if (protocol == PROTOCOL_QUAKE || protocol == PROTOCOL_QUAKEDP || protocol == PROTOCOL_NEHAHRAMOVIE || protocol == PROTOCOL_DARKPLACES1 || protocol == PROTOCOL_DARKPLACES2 || protocol == PROTOCOL_DARKPLACES3 || protocol == PROTOCOL_DARKPLACES4 || protocol == PROTOCOL_QUAKEWORLD)
                MSG_WriteAngle8i (sb, f);
+       else
+               MSG_WriteAngle16i (sb, f);
 }
 
 //
@@ -352,9 +477,9 @@ float MSG_ReadBigFloat (void)
 
 char *MSG_ReadString (void)
 {
-       static char string[2048];
+       static char string[MAX_INPUTLINE];
        int l,c;
-       for (l = 0;l < (int) sizeof(string) - 1 && (c = MSG_ReadChar()) != -1 && c != 0;l++)
+       for (l = 0;l < (int) sizeof(string) - 1 && (c = MSG_ReadByte()) != -1 && c != 0;l++)
                string[l] = c;
        string[l] = 0;
        return string;
@@ -363,7 +488,7 @@ char *MSG_ReadString (void)
 int MSG_ReadBytes (int numbytes, unsigned char *out)
 {
        int l, c;
-       for (l = 0;l < numbytes && (c = MSG_ReadChar()) != -1;l++)
+       for (l = 0;l < numbytes && (c = MSG_ReadByte()) != -1;l++)
                out[l] = c;
        return l;
 }
@@ -383,19 +508,19 @@ float MSG_ReadCoord32f (void)
        return MSG_ReadLittleFloat();
 }
 
-float MSG_ReadCoord (int protocol)
+float MSG_ReadCoord (protocolversion_t protocol)
 {
-       if (protocol == PROTOCOL_QUAKE || protocol == 250)
+       if (protocol == PROTOCOL_QUAKE || protocol == PROTOCOL_QUAKEDP || protocol == PROTOCOL_NEHAHRAMOVIE || protocol == PROTOCOL_QUAKEWORLD)
                return MSG_ReadCoord13i();
-       else if (protocol == PROTOCOL_DARKPLACES1 || protocol == PROTOCOL_DARKPLACES5)
+       else if (protocol == PROTOCOL_DARKPLACES1)
                return MSG_ReadCoord32f();
        else if (protocol == PROTOCOL_DARKPLACES2 || protocol == PROTOCOL_DARKPLACES3 || protocol == PROTOCOL_DARKPLACES4)
                return MSG_ReadCoord16i();
-       Host_Error("MSG_ReadCoord: unknown protocol\n");
-       return 0;
+       else
+               return MSG_ReadCoord32f();
 }
 
-void MSG_ReadVector (float *v, int protocol)
+void MSG_ReadVector (float *v, protocolversion_t protocol)
 {
        v[0] = MSG_ReadCoord(protocol);
        v[1] = MSG_ReadCoord(protocol);
@@ -418,52 +543,33 @@ float MSG_ReadAngle32f (void)
        return MSG_ReadFloat ();
 }
 
-float MSG_ReadAngle (int protocol)
+float MSG_ReadAngle (protocolversion_t protocol)
 {
-       if (protocol == PROTOCOL_DARKPLACES5)
-               return MSG_ReadAngle16i ();
-       else
+       if (protocol == PROTOCOL_QUAKE || protocol == PROTOCOL_QUAKEDP || protocol == PROTOCOL_NEHAHRAMOVIE || protocol == PROTOCOL_DARKPLACES1 || protocol == PROTOCOL_DARKPLACES2 || protocol == PROTOCOL_DARKPLACES3 || protocol == PROTOCOL_DARKPLACES4 || protocol == PROTOCOL_QUAKEWORLD)
                return MSG_ReadAngle8i ();
+       else
+               return MSG_ReadAngle16i ();
 }
 
 
 //===========================================================================
 
-void SZ_Alloc (sizebuf_t *buf, int startsize, const char *name)
-{
-       if (startsize < 256)
-               startsize = 256;
-       buf->mempool = Mem_AllocPool(name, 0, NULL);
-       buf->data = Mem_Alloc(buf->mempool, startsize);
-       buf->maxsize = startsize;
-       buf->cursize = 0;
-}
-
-
-void SZ_Free (sizebuf_t *buf)
-{
-       Mem_FreePool(&buf->mempool);
-       buf->data = NULL;
-       buf->maxsize = 0;
-       buf->cursize = 0;
-}
-
 void SZ_Clear (sizebuf_t *buf)
 {
        buf->cursize = 0;
 }
 
-void *SZ_GetSpace (sizebuf_t *buf, int length)
+unsigned char *SZ_GetSpace (sizebuf_t *buf, int length)
 {
-       void *data;
+       unsigned char *data;
 
        if (buf->cursize + length > buf->maxsize)
        {
                if (!buf->allowoverflow)
-                       Host_Error ("SZ_GetSpace: overflow without allowoverflow set\n");
+                       Host_Error ("SZ_GetSpace: overflow without allowoverflow set");
 
                if (length > buf->maxsize)
-                       Host_Error ("SZ_GetSpace: %i is > full buffer size\n", length);
+                       Host_Error ("SZ_GetSpace: %i is > full buffer size", length);
 
                buf->overflowed = true;
                Con_Print("SZ_GetSpace: overflow\n");
@@ -476,7 +582,7 @@ void *SZ_GetSpace (sizebuf_t *buf, int length)
        return data;
 }
 
-void SZ_Write (sizebuf_t *buf, const void *data, int length)
+void SZ_Write (sizebuf_t *buf, const unsigned char *data, int length)
 {
        memcpy (SZ_GetSpace(buf,length),data,length);
 }
@@ -486,12 +592,12 @@ void SZ_Write (sizebuf_t *buf, const void *data, int length)
 // all of darkplaces.
 
 static char *hexchar = "0123456789ABCDEF";
-void Com_HexDumpToConsole(const qbyte *data, int size)
+void Com_HexDumpToConsole(const unsigned char *data, int size)
 {
        int i, j, n;
        char text[1024];
        char *cur, *flushpointer;
-       const qbyte *d;
+       const unsigned char *d;
        cur = text;
        flushpointer = text + 512;
        for (i = 0;i < size;)
@@ -578,7 +684,11 @@ int COM_ParseToken(const char **datapointer, int returnnewline)
 
 // skip whitespace
 skipwhite:
-       for (;*data <= ' ' && (*data != '\n' || !returnnewline);data++)
+       // line endings:
+       // UNIX: \n
+       // Mac: \r
+       // Windows: \r\n
+       for (;*data <= ' ' && ((*data != '\n' && *data != '\r') || !returnnewline);data++)
        {
                if (*data == 0)
                {
@@ -588,10 +698,14 @@ skipwhite:
                }
        }
 
+       // handle Windows line ending
+       if (data[0] == '\r' && data[1] == '\n')
+               data++;
+
        if (data[0] == '/' && data[1] == '/')
        {
                // comment
-               while (*data && *data != '\n')
+               while (*data && *data != '\n' && *data != '\r')
                        data++;
                goto skipwhite;
        }
@@ -609,6 +723,8 @@ skipwhite:
                // quoted string
                for (data++;*data != '\"';data++)
                {
+                       if (*data == '\\' && data[1] == '"' )
+                               data++;
                        if (!*data || len >= (int)sizeof(com_token) - 1)
                        {
                                com_token[0] = 0;
@@ -621,6 +737,33 @@ skipwhite:
                *datapointer = data+1;
                return true;
        }
+       else if (*data == '\'')
+       {
+               // quoted string
+               for (data++;*data != '\'';data++)
+               {
+                       if (*data == '\\' && data[1] == '\'' )
+                               data++;
+                       if (!*data || len >= (int)sizeof(com_token) - 1)
+                       {
+                               com_token[0] = 0;
+                               *datapointer = NULL;
+                               return false;
+                       }
+                       com_token[len++] = *data;
+               }
+               com_token[len] = 0;
+               *datapointer = data+1;
+               return true;
+       }
+       else if (*data == '\r')
+       {
+               // translate Mac line ending to UNIX
+               com_token[len++] = '\n';
+               com_token[len] = 0;
+               *datapointer = data;
+               return true;
+       }
        else if (*data == '\n' || *data == '{' || *data == '}' || *data == ')' || *data == '(' || *data == ']' || *data == '[' || *data == '\'' || *data == ':' || *data == ',' || *data == ';')
        {
                // single character
@@ -632,7 +775,7 @@ skipwhite:
        else
        {
                // regular word
-               for (;*data > ' ' && *data != '{' && *data != '}' && *data != ')' && *data != '(' && *data != ']' && *data != '[' && *data != '\'' && *data != ':' && *data != ',' && *data != ';';data++)
+               for (;*data > ' ' && *data != '{' && *data != '}' && *data != ')' && *data != '(' && *data != ']' && *data != '[' && *data != '\'' && *data != ':' && *data != ',' && *data != ';' && *data != '\'' && *data != '"';data++)
                {
                        if (len >= (int)sizeof(com_token) - 1)
                        {
@@ -684,7 +827,7 @@ skipwhite:
        if (*data == '/' && data[1] == '/')
        {
                // comment
-               while (*data && *data != '\n')
+               while (*data && *data != '\n' && *data != '\r')
                        data++;
                goto skipwhite;
        }
@@ -703,7 +846,6 @@ skipwhite:
                }
                com_token[len] = 0;
                *datapointer = data+1;
-               return true;
        }
        else
        {
@@ -720,8 +862,9 @@ skipwhite:
                }
                com_token[len] = 0;
                *datapointer = data;
-               return true;
        }
+
+       return true;
 }
 
 
@@ -762,7 +905,7 @@ void COM_CheckRegistered (void)
 {
        Cvar_Set ("cmdline", com_cmdline);
 
-       if (!FS_FileExists("gfx/pop.lmp"))
+       if (gamemode == GAME_NORMAL && !FS_FileExists("gfx/pop.lmp"))
        {
                if (fs_modified)
                        Con_Print("Playing shareware version, with modification.\nwarning: most mods require full quake data.\n");
@@ -793,16 +936,16 @@ void COM_InitArgv (void)
                {
                        // arg contains whitespace, store quotes around it
                        com_cmdline[n++] = '\"';
-                       while ((n < (CMDLINE_LENGTH - 1)) && com_argv[j][i])
+                       while ((n < ((int)sizeof(com_cmdline) - 1)) && com_argv[j][i])
                                com_cmdline[n++] = com_argv[j][i++];
                        com_cmdline[n++] = '\"';
                }
                else
                {
-                       while ((n < (CMDLINE_LENGTH - 1)) && com_argv[j][i])
+                       while ((n < ((int)sizeof(com_cmdline) - 1)) && com_argv[j][i])
                                com_cmdline[n++] = com_argv[j][i++];
                }
-               if (n < (CMDLINE_LENGTH - 1))
+               if (n < ((int)sizeof(com_cmdline) - 1))
                        com_cmdline[n++] = ' ';
                else
                        break;
@@ -815,13 +958,15 @@ void COM_InitArgv (void)
 
 // Game mods
 
-typedef struct
+typedef struct gamemode_info_s
 {
        const char* prog_name;
        const char* cmdline;
        const char* gamename;
-       const char* gamedirname;
+       const char* gamedirname1;
+       const char* gamedirname2;
        const char* gamescreenshotname;
+       const char* gameuserdirname;
 } gamemode_info_t;
 
 static const gamemode_info_t gamemode_info [] =
@@ -829,58 +974,64 @@ static const gamemode_info_t gamemode_info [] =
 
 // GAME_NORMAL
 // COMMANDLINEOPTION: Game: -quake runs the game Quake (default)
-{ "",                          "-quake",               "DarkPlaces-Quake",             "",                     "dp" },
+{ "",                          "-quake",               "DarkPlaces-Quake",             "id1",          NULL,                   "dp",                   "darkplaces" },
 // GAME_HIPNOTIC
 // COMMANDLINEOPTION: Game: -hipnotic runs Quake mission pack 1: The Scourge of Armagon
-{ "hipnotic",          "-hipnotic",    "Darkplaces-Hipnotic",  "hipnotic",     "dp" },
+{ "hipnotic",          "-hipnotic",    "Darkplaces-Hipnotic",  "id1",          "hipnotic",             "dp",                   "darkplaces" },
 // GAME_ROGUE
 // COMMANDLINEOPTION: Game: -rogue runs Quake mission pack 2: The Dissolution of Eternity
-{ "rogue",                     "-rogue",               "Darkplaces-Rogue",             "rogue",        "dp" },
+{ "rogue",                     "-rogue",               "Darkplaces-Rogue",             "id1",          "rogue",                "dp",                   "darkplaces" },
 // GAME_NEHAHRA
 // COMMANDLINEOPTION: Game: -nehahra runs The Seal of Nehahra movie and game
-{ "nehahra",           "-nehahra",             "DarkPlaces-Nehahra",   "nehahra",      "dp" },
+{ "nehahra",           "-nehahra",             "DarkPlaces-Nehahra",   "id1",          "nehahra",              "dp",                   "darkplaces" },
 // GAME_NEXUIZ
 // COMMANDLINEOPTION: Game: -nexuiz runs the multiplayer game Nexuiz
-{ "nexuiz",                    "-nexuiz",              "Nexuiz",                               "data",         "nexuiz" },
+{ "nexuiz",                    "-nexuiz",              "Nexuiz",                               "data",         NULL,                   "nexuiz",               "nexuiz" },
 // GAME_TRANSFUSION
 // COMMANDLINEOPTION: Game: -transfusion runs Transfusion (the recreation of Blood in Quake)
-{ "transfusion",       "-transfusion", "Transfusion",                  "basetf",       "transfusion" },
+{ "transfusion",       "-transfusion", "Transfusion",                  "basetf",       NULL,                   "transfusion",  "transfusion" },
 // GAME_GOODVSBAD2
 // COMMANDLINEOPTION: Game: -goodvsbad2 runs the psychadelic RTS FPS game Good Vs Bad 2
-{ "gvb2",                      "-goodvsbad2",  "GoodVs.Bad2",                  "rts",          "gvb2" },
+{ "gvb2",                      "-goodvsbad2",  "GoodVs.Bad2",                  "rts",          NULL,                   "gvb2",                 "gvb2" },
 // GAME_TEU
 // COMMANDLINEOPTION: Game: -teu runs The Evil Unleashed (this option is obsolete as they are not using darkplaces)
-{ "teu",                       "-teu",                 "TheEvilUnleashed",             "baseteu",      "teu" },
+{ "teu",                       "-teu",                 "TheEvilUnleashed",             "baseteu",      NULL,                   "teu",                  "teu" },
 // GAME_BATTLEMECH
-// COMMANDLINEOPTION: Game: -battlemech runs the multiplayer topdown deathmatch game BattleMech 
-{ "battlemech",                "-battlemech",  "Battlemech",                   "base",         "battlemech" },
+// COMMANDLINEOPTION: Game: -battlemech runs the multiplayer topdown deathmatch game BattleMech
+{ "battlemech",                "-battlemech",  "Battlemech",                   "base",         NULL,                   "battlemech",   "battlemech" },
 // GAME_ZYMOTIC
 // COMMANDLINEOPTION: Game: -zymotic runs the singleplayer game Zymotic
-{ "zymotic",           "-zymotic",             "Zymotic",                              "data",         "zymotic" },
+{ "zymotic",           "-zymotic",             "Zymotic",                              "basezym",              NULL,                   "zymotic",              "zymotic" },
 // GAME_FNIGGIUM
-// COMMANDLINEOPTION: Game: -fniggium runs the post apocalyptic melee RPG Fniggium 
-{ "fniggium",          "-fniggium",    "Fniggium",                             "data",         "fniggium" },
+// COMMANDLINEOPTION: Game: -fniggium runs the post apocalyptic melee RPG Fniggium
+{ "fniggium",          "-fniggium",    "Fniggium",                             "data",         NULL,                   "fniggium",             "fniggium" },
 // GAME_SETHERAL
-// COMMANDLINEOPTION: Game: -setheral runs the multiplayer game Setheral 
-{ "setheral",          "-setheral",    "Setheral",                             "data",         "setheral" },
+// COMMANDLINEOPTION: Game: -setheral runs the multiplayer game Setheral
+{ "setheral",          "-setheral",    "Setheral",                             "data",         NULL,                   "setheral",             "setheral" },
 // GAME_SOM
-// COMMANDLINEOPTION: Game: -som runs the multiplayer game Son Of Man 
-{ "som",                       "-som",                 "Son of Man",                   "sonofman",     "som" },
+// COMMANDLINEOPTION: Game: -som runs the multiplayer game Son Of Man
+{ "som",                       "-som",                 "Son of Man",                   "id1",          "sonofman",             "som",                  "darkplaces" },
 // GAME_TENEBRAE
 // COMMANDLINEOPTION: Game: -tenebrae runs the graphics test mod known as Tenebrae (some features not implemented)
-{ "tenebrae",          "-tenebrae",    "DarkPlaces-Tenebrae",  "tenebrae",     "dp" },
+{ "tenebrae",          "-tenebrae",    "DarkPlaces-Tenebrae",  "id1",          "tenebrae",             "dp",                   "darkplaces" },
 // GAME_NEOTERIC
 // COMMANDLINEOPTION: Game: -neoteric runs the game Neoteric
-{ "neoteric",          "-neoteric",    "Neoteric",                             "neobase",      "neo" },
+{ "neoteric",          "-neoteric",    "Neoteric",                             "id1",          "neobase",              "neo",                  "darkplaces" },
 // GAME_OPENQUARTZ
 // COMMANDLINEOPTION: Game: -openquartz runs the game OpenQuartz, a standalone GPL replacement of the quake content
-{ "openquartz",                "-openquartz",  "OpenQuartz",                   "id1",          "openquartz"},
+{ "openquartz",                "-openquartz",  "OpenQuartz",                   "id1",          NULL,                   "openquartz",   "darkplaces" },
 // GAME_PRYDON
 // COMMANDLINEOPTION: Game: -prydon runs the topdown point and click action-RPG Prydon Gate
-{ "prydon",                    "-prydon",              "PrydonGate",                   "prydon",       "prydon"},
+{ "prydon",                    "-prydon",              "PrydonGate",                   "id1",          "prydon",               "prydon",               "darkplaces" },
 // GAME_NETHERWORLD
-// COMMANDLINEOPTION: Game: -netherworld runs the game Netherworld: Dark Masters
-{ "netherworld",       "-netherworld", "Dark Masters",                 "netherworld",  "nw"},
+// COMMANDLINEOPTION: Game: -netherworld runs the game Netherworld: Dark Master
+{ "netherworld",       "-netherworld", "Netherworld: Dark Master",     "id1",          "netherworld",  "nw",                   "darkplaces" },
+// GAME_THEHUNTED
+// COMMANDLINEOPTION: Game: -thehunted runs the game The Hunted
+{ "thehunted",         "-thehunted",   "The Hunted",                   "thdata",       NULL,                   "th",                   "thehunted" },
+// GAME_DEFEATINDETAIL2
+// COMMANDLINEOPTION: Game: -did2 runs the game Defeat In Detail 2
+{ "did2",                      "-did2",                "Defeat In Detail 2",   "data",         NULL,                   "did2_",                "did2" },
 };
 
 void COM_InitGameType (void)
@@ -896,7 +1047,7 @@ void COM_InitGameType (void)
        for (i = 1; i < sizeof (gamemode_info) / sizeof (gamemode_info[0]); i++)
                if (strstr (name, gamemode_info[i].prog_name))
                {
-                       gamemode = i;
+                       gamemode = (gamemode_t)i;
                        break;
                }
 
@@ -904,37 +1055,29 @@ void COM_InitGameType (void)
        for (i = 0; i < sizeof (gamemode_info) / sizeof (gamemode_info[0]); i++)
                if (COM_CheckParm (gamemode_info[i].cmdline))
                {
-                       gamemode = i;
+                       gamemode = (gamemode_t)i;
                        break;
                }
 
        gamename = gamemode_info[gamemode].gamename;
-       gamedirname = gamemode_info[gamemode].gamedirname;
+       gamedirname1 = gamemode_info[gamemode].gamedirname1;
+       gamedirname2 = gamemode_info[gamemode].gamedirname2;
        gamescreenshotname = gamemode_info[gamemode].gamescreenshotname;
+       gameuserdirname = gamemode_info[gamemode].gameuserdirname;
 }
 
 
-extern void Mathlib_Init(void);
-extern void FS_Init (void);
-
 /*
 ================
 COM_Init
 ================
 */
-void COM_Init (void)
+void COM_Init_Commands (void)
 {
        Cvar_RegisterVariable (&registered);
        Cvar_RegisterVariable (&cmdline);
-
-       Mathlib_Init();
-
-       FS_Init ();
-       Log_Init ();
-       COM_CheckRegistered ();
 }
 
-
 /*
 ============
 va
@@ -954,13 +1097,54 @@ char *va(const char *format, ...)
        s = string[stringindex];
        stringindex = (stringindex + 1) & 7;
        va_start (argptr, format);
-       vsnprintf (s, sizeof (string[0]), format,argptr);
+       dpvsnprintf (s, sizeof (string[0]), format,argptr);
        va_end (argptr);
 
        return s;
 }
 
 
+//======================================
+
+// snprintf and vsnprintf are NOT portable. Use their DP counterparts instead
+
+#undef snprintf
+#undef vsnprintf
+
+#ifdef WIN32
+# define snprintf _snprintf
+# define vsnprintf _vsnprintf
+#endif
+
+
+int dpsnprintf (char *buffer, size_t buffersize, const char *format, ...)
+{
+       va_list args;
+       int result;
+
+       va_start (args, format);
+       result = dpvsnprintf (buffer, buffersize, format, args);
+       va_end (args);
+
+       return result;
+}
+
+
+int dpvsnprintf (char *buffer, size_t buffersize, const char *format, va_list args)
+{
+       int result;
+
+       result = vsnprintf (buffer, buffersize, format, args);
+       if (result < 0 || (size_t)result >= buffersize)
+       {
+               buffer[buffersize - 1] = '\0';
+               return -1;
+       }
+
+       return result;
+}
+
+
 //======================================
 
 void COM_ToLowerString (const char *in, char *out, size_t size_out)
@@ -1013,14 +1197,14 @@ int COM_ReadAndTokenizeLine(const char **text, char **argv, int maxargc, char *t
        l = *text;
        commentprefixlength = 0;
        if (commentprefix)
-               commentprefixlength = strlen(commentprefix);
-       while (*l && *l != '\n')
+               commentprefixlength = (int)strlen(commentprefix);
+       while (*l && *l != '\n' && *l != '\r')
        {
                if (*l > ' ')
                {
                        if (commentprefixlength && !strncmp(l, commentprefix, commentprefixlength))
                        {
-                               while (*l && *l != '\n')
+                               while (*l && *l != '\n' && *l != '\r')
                                        l++;
                                break;
                        }
@@ -1055,6 +1239,12 @@ int COM_ReadAndTokenizeLine(const char **text, char **argv, int maxargc, char *t
                else
                        l++;
        }
+       // line endings:
+       // UNIX: \n
+       // Mac: \r
+       // Windows: \r\n
+       if (*l == '\r')
+               l++;
        if (*l == '\n')
                l++;
        *text = l;
@@ -1064,8 +1254,8 @@ int COM_ReadAndTokenizeLine(const char **text, char **argv, int maxargc, char *t
 // written by Elric, thanks Elric!
 char *SearchInfostring(const char *infostring, const char *key)
 {
-       static char value [256];
-       char crt_key [256];
+       static char value [MAX_INPUTLINE];
+       char crt_key [MAX_INPUTLINE];
        size_t value_ind, key_ind;
        char c;
 
@@ -1123,6 +1313,139 @@ char *SearchInfostring(const char *infostring, const char *key)
        }
 }
 
+void InfoString_GetValue(const char *buffer, const char *key, char *value, size_t valuelength)
+{
+       int pos = 0, j;
+       size_t keylength;
+       if (!key)
+               key = "";
+       if (!value)
+               value = "";
+       keylength = strlen(key);
+       if (valuelength < 1 || !value)
+       {
+               Con_Printf("InfoString_GetValue: no room in value\n");
+               return;
+       }
+       value[0] = 0;
+       if (strchr(key, '\\'))
+       {
+               Con_Printf("InfoString_GetValue: key name \"%s\" contains \\ which is not possible in an infostring\n", key);
+               return;
+       }
+       if (strchr(key, '\"'))
+       {
+               Con_Printf("InfoString_SetValue: key name \"%s\" contains \" which is not allowed in an infostring\n", key);
+               return;
+       }
+       if (!key[0])
+       {
+               Con_Printf("InfoString_GetValue: can not look up a key with no name\n");
+               return;
+       }
+       while (buffer[pos] == '\\')
+       {
+               if (!memcmp(buffer + pos+1, key, keylength))
+               {
+                       for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
+                       pos++;
+                       for (j = 0;buffer[pos+j] && buffer[pos+j] != '\\' && j < (int)valuelength - 1;j++)
+                               value[j] = buffer[pos+j];
+                       value[j] = 0;
+                       return;
+               }
+               for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
+               for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
+       }
+       // if we reach this point the key was not found
+}
+
+void InfoString_SetValue(char *buffer, size_t bufferlength, const char *key, const char *value)
+{
+       int pos = 0, pos2;
+       size_t keylength;
+       if (!key)
+               key = "";
+       if (!value)
+               value = "";
+       keylength = strlen(key);
+       if (strchr(key, '\\') || strchr(value, '\\'))
+       {
+               Con_Printf("InfoString_SetValue: \"%s\" \"%s\" contains \\ which is not possible to store in an infostring\n", key, value);
+               return;
+       }
+       if (strchr(key, '\"') || strchr(value, '\"'))
+       {
+               Con_Printf("InfoString_SetValue: \"%s\" \"%s\" contains \" which is not allowed in an infostring\n", key, value);
+               return;
+       }
+       if (!key[0])
+       {
+               Con_Printf("InfoString_SetValue: can not set a key with no name\n");
+               return;
+       }
+       while (buffer[pos] == '\\')
+       {
+               if (!memcmp(buffer + pos+1, key, keylength))
+                       break;
+               for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
+               for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
+       }
+       // if we found the key, find the end of it because we will be replacing it
+       pos2 = pos;
+       if (buffer[pos] == '\\')
+       {
+               for (pos2++;buffer[pos2] && buffer[pos2] != '\\';pos2++);
+               for (pos2++;buffer[pos2] && buffer[pos2] != '\\';pos2++);
+       }
+       if (bufferlength <= 1 + strlen(key) + 1 + strlen(value) + strlen(buffer + pos2))
+       {
+               Con_Printf("InfoString_SetValue: no room for \"%s\" \"%s\" in infostring\n", key, value);
+               return;
+       }
+       if (value && value[0])
+       {
+               // set the key/value and append the remaining text
+               char tempbuffer[4096];
+               strlcpy(tempbuffer, buffer + pos2, sizeof(tempbuffer));
+               sprintf(buffer + pos, "\\%s\\%s%s", key, value, tempbuffer);
+       }
+       else
+       {
+               // just remove the key from the text
+               strcpy(buffer + pos, buffer + pos2);
+       }
+}
+
+void InfoString_Print(char *buffer)
+{
+       int i;
+       char key[2048];
+       char value[2048];
+       while (*buffer)
+       {
+               if (*buffer != '\\')
+               {
+                       Con_Printf("InfoString_Print: corrupt string\n");
+                       return;
+               }
+               for (buffer++, i = 0;*buffer && *buffer != '\\';buffer++)
+                       if (i < (int)sizeof(key)-1)
+                               key[i++] = *buffer;
+               key[i] = 0;
+               if (*buffer != '\\')
+               {
+                       Con_Printf("InfoString_Print: corrupt string\n");
+                       return;
+               }
+               for (buffer++, i = 0;*buffer && *buffer != '\\';buffer++)
+                       if (i < (int)sizeof(value)-1)
+                               value[i++] = *buffer;
+               value[i] = 0;
+               // empty value is an error case
+               Con_Printf("%20s %s\n", key, value[0] ? value : "NO VALUE");
+       }
+}
 
 //========================================================
 // strlcat and strlcpy, from OpenBSD