--- /dev/null
+/* Catacomb Apocalypse Source Code\r
+ * Copyright (C) 1993-2014 Flat Rock Software\r
+ *\r
+ * This program is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * This program is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License along\r
+ * with this program; if not, write to the Free Software Foundation, Inc.,\r
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\r
+ */\r
+\r
+// ID_CA.C\r
+\r
+/*\r
+=============================================================================\r
+\r
+Id Software Caching Manager\r
+---------------------------\r
+\r
+Must be started BEFORE the memory manager, because it needs to get the headers\r
+loaded into the data segment\r
+\r
+=============================================================================\r
+*/\r
+\r
+#include "16_ca.h"\r
+//#include "ID_STRS.H"\r
+\r
+//#define THREEBYTEGRSTARTS\r
+\r
+/*\r
+=============================================================================\r
+\r
+ LOCAL CONSTANTS\r
+\r
+=============================================================================\r
+*/\r
+\r
+typedef struct\r
+{\r
+ unsigned bit0,bit1; // 0-255 is a character, > is a pointer to a node\r
+} huffnode;\r
+\r
+\r
+/*typedef struct\r
+{\r
+ unsigned RLEWtag;\r
+ long headeroffsets[100];\r
+ byte tileinfo[];\r
+} mapfiletype;*/\r
+\r
+\r
+/*\r
+=============================================================================\r
+\r
+ GLOBAL VARIABLES\r
+\r
+=============================================================================\r
+*/\r
+\r
+/*byte _seg *tinf;\r
+int mapon;\r
+\r
+unsigned _seg *mapsegs[3];\r
+maptype _seg *mapheaderseg[NUMMAPS];\r
+byte _seg *audiosegs[NUMSNDCHUNKS];\r
+void _seg *grsegs[NUMCHUNKS];\r
+\r
+byte far grneeded[NUMCHUNKS];\r
+byte ca_levelbit,ca_levelnum;*/\r
+\r
+int profilehandle,debughandle;\r
+\r
+void (*drawcachebox) (char *title, unsigned numcache);\r
+void (*updatecachebox) (void);\r
+void (*finishcachebox) (void);\r
+\r
+/*\r
+=============================================================================\r
+\r
+ LOCAL VARIABLES\r
+\r
+=============================================================================\r
+*/\r
+\r
+/*extern long far CGAhead;\r
+extern long far EGAhead;\r
+extern byte CGAdict;\r
+extern byte EGAdict;\r
+extern byte far maphead;\r
+extern byte mapdict;\r
+extern byte far audiohead;\r
+extern byte audiodict;\r
+\r
+\r
+long _seg *grstarts; // array of offsets in egagraph, -1 for sparse\r
+long _seg *audiostarts; // array of offsets in audio / audiot\r
+\r
+#ifdef GRHEADERLINKED\r
+huffnode *grhuffman;\r
+#else\r
+huffnode grhuffman[255];\r
+#endif\r
+\r
+#ifdef AUDIOHEADERLINKED\r
+huffnode *audiohuffman;\r
+#else\r
+huffnode audiohuffman[255];\r
+#endif\r
+\r
+\r
+int grhandle; // handle to EGAGRAPH\r
+int maphandle; // handle to MAPTEMP / GAMEMAPS\r
+int audiohandle; // handle to AUDIOT / AUDIO\r
+\r
+long chunkcomplen,chunkexplen;\r
+\r
+SDMode oldsoundmode;\r
+\r
+\r
+\r
+void CAL_DialogDraw (char *title,unsigned numcache);\r
+void CAL_DialogUpdate (void);\r
+void CAL_DialogFinish (void);*/\r
+//void CAL_CarmackExpand (unsigned far *source, unsigned far *dest,unsigned length);\r
+\r
+\r
+/*++++#ifdef THREEBYTEGRSTARTS\r
+#define FILEPOSSIZE 3\r
+//#define GRFILEPOS(c) (*(long far *)(((byte far *)grstarts)+(c)*3)&0xffffff)\r
+long GRFILEPOS(int c)\r
+{\r
+ long value;\r
+ int offset;\r
+\r
+ offset = c*3;\r
+\r
+ value = *(long far *)(((byte far *)grstarts)+offset);\r
+\r
+ value &= 0x00ffffffl;\r
+\r
+ if (value == 0xffffffl)\r
+ value = -1;\r
+\r
+ return value;\r
+};\r
+#else\r
+#define FILEPOSSIZE 4\r
+#define GRFILEPOS(c) (grstarts[c])\r
+#endif*/\r
+\r
+/*\r
+=============================================================================\r
+\r
+ LOW LEVEL ROUTINES\r
+\r
+=============================================================================\r
+*/\r
+\r
+/*\r
+============================\r
+=\r
+= CA_OpenDebug / CA_CloseDebug\r
+=\r
+= Opens a binary file with the handle "debughandle"\r
+=\r
+============================\r
+*/\r
+void CA_OpenDebug(void)\r
+{\r
+ unlink("debug.16");\r
+ debughandle = open("debug.16", O_CREAT | O_WRONLY | O_TEXT);\r
+}\r
+\r
+void CA_CloseDebug(void)\r
+{\r
+ close(debughandle);\r
+}\r
+\r
+\r
+\r
+/*\r
+============================\r
+=\r
+= CAL_GetGrChunkLength\r
+=\r
+= Gets the length of an explicit length chunk (not tiles)\r
+= The file pointer is positioned so the compressed data can be read in next.\r
+=\r
+============================\r
+*/\r
+/*++++\r
+void CAL_GetGrChunkLength (int chunk)\r
+{\r
+ lseek(grhandle,GRFILEPOS(chunk),SEEK_SET);\r
+ read(grhandle,&chunkexplen,sizeof(chunkexplen));\r
+ chunkcomplen = GRFILEPOS(chunk+1)-GRFILEPOS(chunk)-4;\r
+}*/\r
+\r
+\r
+/*\r
+==========================\r
+=\r
+= CA_FarRead\r
+=\r
+= Read from a file to a far pointer\r
+=\r
+==========================\r
+*/\r
+\r
+boolean CA_FarRead(int handle, byte huge *dest, dword length, mminfo_t *mm)\r
+{\r
+ boolean flag;\r
+ /*dword fat=0;
+ word segm=0;
+ //if(mm->EMSVer<0x40)\r
+ if(length>0xfffflu)
+ {
+ printf("File is a fat bakapee\n");
+ segm=(length%0xfffflu)-1;
+ fat=segm*0xfffflu;
+ length-=fat;\r
+// printf("CA_FarRead doesn't support 64K reads yet!\n");\r
+ }
+
+ if(!fat&&!segm)
+ {*/\r
+ __asm\r
+ {\r
+ push ds\r
+ mov bx,[handle]\r
+ mov cx,[WORD PTR length]\r
+ mov dx,[WORD PTR dest]\r
+ mov ds,[WORD PTR dest+2]\r
+ mov ah,0x3f // READ w/handle\r
+ int 21h\r
+ pop ds\r
+ jnc good\r
+ mov errno,ax\r
+ mov flag,0\r
+ jmp End\r
+good:\r
+ cmp ax,[WORD PTR length]\r
+ je done\r
+// errno = EINVFMT; // user manager knows this is bad read\r
+ mov flag,0\r
+ jmp End\r
+done:\r
+ mov flag,1\r
+End:\r
+ }\r
+ return flag;
+ //}else return 0;//todo: EXPAND!!!\r
+}\r
+\r
+\r
+/*\r
+==========================\r
+=\r
+= CA_SegWrite\r
+=\r
+= Write from a file to a far pointer\r
+=\r
+==========================\r
+*/\r
+\r
+boolean CA_FarWrite(int handle, byte huge *source, dword length, mminfo_t *mm)\r
+{\r
+ boolean flag;\r
+ /*dword fat=0;
+ word segm=0;
+ //if(mm->EMSVer<0x40)\r
+ if(length>0xfffflu)
+ {
+ printf("File is a fat bakapee\n");
+ segm=(length%0xfffflu)-1;
+ fat=segm*0xfffflu;
+ length-=fat;\r
+// printf("CA_FarRead doesn't support 64K reads yet!\n");\r
+ }\r
+
+ if(!fat&&!segm)
+ {*/\r
+ __asm\r
+ {\r
+ push ds\r
+ mov bx,[handle]\r
+ mov cx,[WORD PTR length]\r
+ mov dx,[WORD PTR source]\r
+ mov ds,[WORD PTR source+2]\r
+ mov ah,0x40 // WRITE w/handle\r
+ int 21h\r
+ pop ds\r
+ jnc good\r
+ mov errno,ax\r
+ mov flag,0\r
+ jmp End\r
+good:\r
+ cmp ax,[WORD PTR length]\r
+ je done\r
+ //errno = ENOMEM; // user manager knows this is bad write\r
+ mov flag,0\r
+ jmp End\r
+done:\r
+ mov flag,1\r
+End:\r
+ }\r
+ return flag;
+ //}else return 0;\r
+}\r
+\r
+\r
+/*\r
+==========================\r
+=\r
+= CA_ReadFile\r
+=\r
+= Reads a file into an allready allocated buffer\r
+=\r
+==========================\r
+*/\r
+\r
+boolean CA_ReadFile(char *filename, memptr *ptr, mminfo_t *mm)\r
+{\r
+ int handle;\r
+ dword size;
+ //long size;\r
+\r
+ if((handle = open(filename,O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ return false;\r
+\r
+ size = filelength(handle);\r
+ if(!CA_FarRead(handle,*ptr,size, mm))\r
+ {\r
+ close(handle);\r
+ return false;\r
+ }\r
+ close(handle);\r
+ return true;\r
+}\r
+\r
+\r
+\r
+/*\r
+==========================\r
+=\r
+= CA_LoadFile\r
+=\r
+= Allocate space for and load a file\r
+=\r
+==========================\r
+*/\r
+\r
+boolean CA_LoadFile(char *filename, memptr *ptr, mminfo_t *mm, mminfotype *mmi)\r
+{\r
+ int handle;\r
+ dword size;
+ //long size;\r
+\r
+ if((handle = open(filename,O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ return false;\r
+\r
+ size = filelength (handle);\r
+ MM_GetPtr(ptr,size, mm, mmi);\r
+ if(!CA_FarRead(handle,*ptr,size, mm))\r
+ {\r
+ close(handle);\r
+ return false;\r
+ }\r
+ close(handle);\r
+ return true;\r
+}\r
+\r
+/*\r
+============================================================================\r
+\r
+ COMPRESSION routines, see JHUFF.C for more\r
+\r
+============================================================================\r
+*/\r
+\r
+\r
+\r
+/*\r
+===============\r
+=\r
+= CAL_OptimizeNodes\r
+=\r
+= Goes through a huffman table and changes the 256-511 node numbers to the\r
+= actular address of the node. Must be called before CAL_HuffExpand\r
+=\r
+===============\r
+*/\r
+\r
+void CAL_OptimizeNodes(huffnode *table)\r
+{\r
+ huffnode *node;\r
+ int i;\r
+\r
+ node = table;\r
+\r
+ for (i=0;i<255;i++)\r
+ {\r
+ if (node->bit0 >= 256)\r
+ node->bit0 = (unsigned)(table+(node->bit0-256));\r
+ if (node->bit1 >= 256)\r
+ node->bit1 = (unsigned)(table+(node->bit1-256));\r
+ node++;\r
+ }\r
+}\r
+\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_HuffExpand\r
+=\r
+= Length is the length of the EXPANDED data\r
+=\r
+======================\r
+*/\r
+\r
+/*++++void CAL_HuffExpand (byte huge *source, byte huge *dest,\r
+ long length,huffnode *hufftable)\r
+{\r
+// unsigned bit,byte,node,code;\r
+ unsigned sourceseg,sourceoff,destseg,destoff,endoff;\r
+ huffnode *headptr;\r
+// huffnode *nodeon;\r
+\r
+ headptr = hufftable+254; // head node is allways node 254\r
+\r
+ source++; // normalize\r
+ source--;\r
+ dest++;\r
+ dest--;\r
+\r
+ sourceseg = FP_SEG(source);\r
+ sourceoff = FP_OFF(source);\r
+ destseg = FP_SEG(dest);\r
+ destoff = FP_OFF(dest);\r
+ endoff = destoff+length;\r
+\r
+//\r
+// ds:si source\r
+// es:di dest\r
+// ss:bx node pointer\r
+//\r
+\r
+ if (length <0xfff0)\r
+ {\r
+\r
+//--------------------------\r
+// expand less than 64k of data\r
+//--------------------------\r
+\r
+ __asm\r
+ {\r
+ mov bx,[headptr]\r
+\r
+ mov si,[sourceoff]\r
+ mov di,[destoff]\r
+ mov es,[destseg]\r
+ mov ds,[sourceseg]\r
+ mov ax,[endoff]\r
+\r
+ mov ch,[si] // load first byte\r
+ inc si\r
+ mov cl,1\r
+\r
+expandshort:\r
+ test ch,cl // bit set?\r
+ jnz bit1short\r
+ mov dx,[ss:bx] // take bit0 path from node\r
+ shl cl,1 // advance to next bit position\r
+ jc newbyteshort\r
+ jnc sourceupshort\r
+\r
+bit1short:\r
+asm mov dx,[ss:bx+2] // take bit1 path\r
+asm shl cl,1 // advance to next bit position\r
+asm jnc sourceupshort\r
+\r
+newbyteshort:\r
+asm mov ch,[si] // load next byte\r
+asm inc si\r
+asm mov cl,1 // back to first bit\r
+\r
+sourceupshort:\r
+asm or dh,dh // if dx<256 its a byte, else move node\r
+asm jz storebyteshort\r
+asm mov bx,dx // next node = (huffnode *)code\r
+asm jmp expandshort\r
+\r
+storebyteshort:\r
+asm mov [es:di],dl\r
+asm inc di // write a decopmpressed byte out\r
+asm mov bx,[headptr] // back to the head node for next bit\r
+\r
+asm cmp di,ax // done?\r
+asm jne expandshort\r
+ }\r
+ }\r
+ else\r
+ {\r
+\r
+//--------------------------\r
+// expand more than 64k of data\r
+//--------------------------\r
+\r
+ length--;\r
+\r
+ __asm\r
+ {\r
+asm mov bx,[headptr]\r
+asm mov cl,1\r
+\r
+asm mov si,[sourceoff]\r
+asm mov di,[destoff]\r
+asm mov es,[destseg]\r
+asm mov ds,[sourceseg]\r
+\r
+asm lodsb // load first byte\r
+\r
+expand:\r
+asm test al,cl // bit set?\r
+asm jnz bit1\r
+asm mov dx,[ss:bx] // take bit0 path from node\r
+asm jmp gotcode\r
+bit1:\r
+asm mov dx,[ss:bx+2] // take bit1 path\r
+\r
+gotcode:\r
+asm shl cl,1 // advance to next bit position\r
+asm jnc sourceup\r
+asm lodsb\r
+asm cmp si,0x10 // normalize ds:si\r
+asm jb sinorm\r
+asm mov cx,ds\r
+asm inc cx\r
+asm mov ds,cx\r
+asm xor si,si\r
+sinorm:\r
+asm mov cl,1 // back to first bit\r
+\r
+sourceup:\r
+asm or dh,dh // if dx<256 its a byte, else move node\r
+asm jz storebyte\r
+asm mov bx,dx // next node = (huffnode *)code\r
+asm jmp expand\r
+\r
+storebyte:\r
+asm mov [es:di],dl\r
+asm inc di // write a decopmpressed byte out\r
+asm mov bx,[headptr] // back to the head node for next bit\r
+\r
+asm cmp di,0x10 // normalize es:di\r
+asm jb dinorm\r
+asm mov dx,es\r
+asm inc dx\r
+asm mov es,dx\r
+asm xor di,di\r
+dinorm:\r
+\r
+asm sub [WORD PTR ss:length],1\r
+asm jnc expand\r
+asm dec [WORD PTR ss:length+2]\r
+asm jns expand // when length = ffff ffff, done\r
+ }\r
+ }\r
+\r
+ __asm\r
+ {\r
+ mov ax,ss\r
+ mov ds,ax\r
+ }\r
+\r
+}*/\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_CarmackExpand\r
+=\r
+= Length is the length of the EXPANDED data\r
+=\r
+======================\r
+*/\r
+/*++++\r
+#define NEARTAG 0xa7\r
+#define FARTAG 0xa8\r
+\r
+void CAL_CarmackExpand (unsigned far *source, unsigned far *dest, unsigned length)\r
+{\r
+ unsigned ch,chhigh,count,offset;\r
+ unsigned far *copyptr, far *inptr, far *outptr;\r
+\r
+ length/=2;\r
+\r
+ inptr = source;\r
+ outptr = dest;\r
+\r
+ while (length)\r
+ {\r
+ ch = *inptr++;\r
+ chhigh = ch>>8;\r
+ if (chhigh == NEARTAG)\r
+ {\r
+ count = ch&0xff;\r
+ if (!count)\r
+ { // have to insert a word containing the tag byte\r
+ ch |= *((unsigned char far *)inptr)++;\r
+ *outptr++ = ch;\r
+ length--;\r
+ }\r
+ else\r
+ {\r
+ offset = *((unsigned char far *)inptr)++;\r
+ copyptr = outptr - offset;\r
+ length -= count;\r
+ while (count--)\r
+ *outptr++ = *copyptr++;\r
+ }\r
+ }\r
+ else if (chhigh == FARTAG)\r
+ {\r
+ count = ch&0xff;\r
+ if (!count)\r
+ { // have to insert a word containing the tag byte\r
+ ch |= *((unsigned char far *)inptr)++;\r
+ *outptr++ = ch;\r
+ length --;\r
+ }\r
+ else\r
+ {\r
+ offset = *inptr++;\r
+ copyptr = dest + offset;\r
+ length -= count;\r
+ while (count--)\r
+ *outptr++ = *copyptr++;\r
+ }\r
+ }\r
+ else\r
+ {\r
+ *outptr++ = ch;\r
+ length --;\r
+ }\r
+ }\r
+}\r
+*/\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CA_RLEWcompress\r
+=\r
+======================\r
+*/\r
+/*++++\r
+long CA_RLEWCompress (unsigned huge *source, long length, unsigned huge *dest,\r
+ unsigned rlewtag)\r
+{\r
+ long complength;\r
+ unsigned value,count,i;\r
+ unsigned huge *start,huge *end;\r
+\r
+ start = dest;\r
+\r
+ end = source + (length+1)/2;\r
+\r
+//\r
+// compress it\r
+//\r
+ do\r
+ {\r
+ count = 1;\r
+ value = *source++;\r
+ while (*source == value && source<end)\r
+ {\r
+ count++;\r
+ source++;\r
+ }\r
+ if (count>3 || value == rlewtag)\r
+ {\r
+ //\r
+ // send a tag / count / value string\r
+ //\r
+ *dest++ = rlewtag;\r
+ *dest++ = count;\r
+ *dest++ = value;\r
+ }\r
+ else\r
+ {\r
+ //\r
+ // send word without compressing\r
+ //\r
+ for (i=1;i<=count;i++)\r
+ *dest++ = value;\r
+ }\r
+\r
+ } while (source<end);\r
+\r
+ complength = 2*(dest-start);\r
+ return complength;\r
+}\r
+*/\r
+\r
+/*\r
+======================\r
+=\r
+= CA_RLEWexpand\r
+= length is EXPANDED length\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CA_RLEWexpand (unsigned huge *source, unsigned huge *dest,long length,\r
+ unsigned rlewtag)\r
+{\r
+// unsigned value,count,i;\r
+ unsigned huge *end;\r
+ unsigned sourceseg,sourceoff,destseg,destoff,endseg,endoff;\r
+\r
+\r
+//\r
+// expand it\r
+//\r
+#if 0\r
+ do\r
+ {\r
+ value = *source++;\r
+ if (value != rlewtag)\r
+ //\r
+ // uncompressed\r
+ //\r
+ *dest++=value;\r
+ else\r
+ {\r
+ //\r
+ // compressed string\r
+ //\r
+ count = *source++;\r
+ value = *source++;\r
+ for (i=1;i<=count;i++)\r
+ *dest++ = value;\r
+ }\r
+ } while (dest<end);\r
+#endif\r
+\r
+ end = dest + (length)/2;\r
+ sourceseg = FP_SEG(source);\r
+ sourceoff = FP_OFF(source);\r
+ destseg = FP_SEG(dest);\r
+ destoff = FP_OFF(dest);\r
+ endseg = FP_SEG(end);\r
+ endoff = FP_OFF(end);\r
+\r
+\r
+//\r
+// ax = source value\r
+// bx = tag value\r
+// cx = repeat counts\r
+// dx = scratch\r
+//\r
+// NOTE: A repeat count that produces 0xfff0 bytes can blow this!\r
+//\r
+\r
+asm mov bx,rlewtag\r
+asm mov si,sourceoff\r
+asm mov di,destoff\r
+asm mov es,destseg\r
+asm mov ds,sourceseg\r
+\r
+expand:\r
+asm lodsw\r
+asm cmp ax,bx\r
+asm je repeat\r
+asm stosw\r
+asm jmp next\r
+\r
+repeat:\r
+asm lodsw\r
+asm mov cx,ax // repeat count\r
+asm lodsw // repeat value\r
+asm rep stosw\r
+\r
+next:\r
+\r
+asm cmp si,0x10 // normalize ds:si\r
+asm jb sinorm\r
+asm mov ax,si\r
+asm shr ax,1\r
+asm shr ax,1\r
+asm shr ax,1\r
+asm shr ax,1\r
+asm mov dx,ds\r
+asm add dx,ax\r
+asm mov ds,dx\r
+asm and si,0xf\r
+sinorm:\r
+asm cmp di,0x10 // normalize es:di\r
+asm jb dinorm\r
+asm mov ax,di\r
+asm shr ax,1\r
+asm shr ax,1\r
+asm shr ax,1\r
+asm shr ax,1\r
+asm mov dx,es\r
+asm add dx,ax\r
+asm mov es,dx\r
+asm and di,0xf\r
+dinorm:\r
+\r
+asm cmp di,ss:endoff\r
+asm jne expand\r
+asm mov ax,es\r
+asm cmp ax,ss:endseg\r
+asm jb expand\r
+\r
+asm mov ax,ss\r
+asm mov ds,ax\r
+\r
+}\r
+*/\r
+\r
+\r
+/*\r
+=============================================================================\r
+\r
+ CACHE MANAGER ROUTINES\r
+\r
+=============================================================================\r
+*/\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_SetupGrFile\r
+=\r
+======================\r
+*/\r
+\r
+/*void CAL_SetupGrFile (void)\r
+{\r
+ int handle;\r
+ memptr compseg;\r
+\r
+#ifdef GRHEADERLINKED\r
+\r
+#if GRMODE == EGAGR\r
+ grhuffman = (huffnode *)&EGAdict;\r
+ grstarts = (long _seg *)FP_SEG(&EGAhead);\r
+#endif\r
+#if GRMODE == CGAGR\r
+ grhuffman = (huffnode *)&CGAdict;\r
+ grstarts = (long _seg *)FP_SEG(&CGAhead);\r
+#endif\r
+\r
+ CAL_OptimizeNodes (grhuffman);\r
+\r
+#else\r
+\r
+//\r
+// load ???dict.ext (huffman dictionary for graphics files)\r
+//\r
+\r
+ if ((handle = open(GREXT"DICT."EXT,\r
+ O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ Quit ("Can't open "GREXT"DICT."EXT"!");\r
+\r
+ read(handle, &grhuffman, sizeof(grhuffman));\r
+ close(handle);\r
+ CAL_OptimizeNodes (grhuffman);\r
+//\r
+// load the data offsets from ???head.ext\r
+//\r
+ MM_GetPtr (&(memptr)grstarts,(NUMCHUNKS+1)*FILEPOSSIZE);\r
+\r
+ if ((handle = open(GREXT"HEAD."EXT,\r
+ O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ Quit ("Can't open "GREXT"HEAD."EXT"!");\r
+\r
+ CA_FarRead(handle, (memptr)grstarts, (NUMCHUNKS+1)*FILEPOSSIZE);\r
+\r
+ close(handle);\r
+\r
+\r
+#endif\r
+\r
+//\r
+// Open the graphics file, leaving it open until the game is finished\r
+//\r
+ grhandle = open(GREXT"GRAPH."EXT, O_RDONLY | O_BINARY);\r
+ if (grhandle == -1)\r
+ Quit ("Cannot open "GREXT"GRAPH."EXT"!");\r
+\r
+\r
+//\r
+// load the pic and sprite headers into the arrays in the data segment\r
+//\r
+#if NUMPICS>0\r
+ MM_GetPtr(&(memptr)pictable,NUMPICS*sizeof(pictabletype));\r
+ CAL_GetGrChunkLength(STRUCTPIC); // position file pointer\r
+ MM_GetPtr(&compseg,chunkcomplen);\r
+ CA_FarRead (grhandle,compseg,chunkcomplen);\r
+ CAL_HuffExpand (compseg, (byte huge *)pictable,NUMPICS*sizeof(pictabletype),grhuffman);\r
+ MM_FreePtr(&compseg);\r
+#endif\r
+\r
+#if NUMPICM>0\r
+ MM_GetPtr(&(memptr)picmtable,NUMPICM*sizeof(pictabletype));\r
+ CAL_GetGrChunkLength(STRUCTPICM); // position file pointer\r
+ MM_GetPtr(&compseg,chunkcomplen);\r
+ CA_FarRead (grhandle,compseg,chunkcomplen);\r
+ CAL_HuffExpand (compseg, (byte huge *)picmtable,NUMPICS*sizeof(pictabletype),grhuffman);\r
+ MM_FreePtr(&compseg);\r
+#endif\r
+\r
+#if NUMSPRITES>0\r
+ MM_GetPtr(&(memptr)spritetable,NUMSPRITES*sizeof(spritetabletype));\r
+ CAL_GetGrChunkLength(STRUCTSPRITE); // position file pointer\r
+ MM_GetPtr(&compseg,chunkcomplen);\r
+ CA_FarRead (grhandle,compseg,chunkcomplen);\r
+ CAL_HuffExpand (compseg, (byte huge *)spritetable,NUMSPRITES*sizeof(spritetabletype),grhuffman);\r
+ MM_FreePtr(&compseg);\r
+#endif\r
+\r
+}*/\r
+\r
+//==========================================================================\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_SetupMapFile\r
+=\r
+======================\r
+*/\r
+\r
+/*void CAL_SetupMapFile (void)\r
+{\r
+ int handle;\r
+ long length;\r
+\r
+//\r
+// load maphead.ext (offsets and tileinfo for map file)\r
+//\r
+#ifndef MAPHEADERLINKED\r
+ if ((handle = open("MAPHEAD."EXT,\r
+ O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ Quit ("Can't open MAPHEAD."EXT"!");\r
+ length = filelength(handle);\r
+ MM_GetPtr (&(memptr)tinf,length);\r
+ CA_FarRead(handle, tinf, length);\r
+ close(handle);\r
+#else\r
+\r
+ tinf = (byte _seg *)FP_SEG(&maphead);\r
+\r
+#endif\r
+\r
+//\r
+// open the data file\r
+//\r
+#ifdef MAPHEADERLINKED\r
+ if ((maphandle = open("GAMEMAPS."EXT,\r
+ O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ Quit ("Can't open GAMEMAPS."EXT"!");\r
+#else\r
+ if ((maphandle = open("MAPTEMP."EXT,\r
+ O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ Quit ("Can't open MAPTEMP."EXT"!");\r
+#endif\r
+}*/\r
+\r
+//==========================================================================\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_SetupAudioFile\r
+=\r
+======================\r
+*/\r
+\r
+/*void CAL_SetupAudioFile (void)\r
+{\r
+ int handle;\r
+ long length;\r
+\r
+//\r
+// load maphead.ext (offsets and tileinfo for map file)\r
+//\r
+#ifndef AUDIOHEADERLINKED\r
+ if ((handle = open("AUDIOHED."EXT,\r
+ O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ Quit ("Can't open AUDIOHED."EXT"!");\r
+ length = filelength(handle);\r
+ MM_GetPtr (&(memptr)audiostarts,length);\r
+ CA_FarRead(handle, (byte far *)audiostarts, length);\r
+ close(handle);\r
+#else\r
+ audiohuffman = (huffnode *)&audiodict;\r
+ CAL_OptimizeNodes (audiohuffman);\r
+ audiostarts = (long _seg *)FP_SEG(&audiohead);\r
+#endif\r
+\r
+//\r
+// open the data file\r
+//\r
+#ifndef AUDIOHEADERLINKED\r
+ if ((audiohandle = open("AUDIOT."EXT,\r
+ O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ Quit ("Can't open AUDIOT."EXT"!");\r
+#else\r
+ if ((audiohandle = open("AUDIO."EXT,\r
+ O_RDONLY | O_BINARY, S_IREAD)) == -1)\r
+ Quit ("Can't open AUDIO."EXT"!");\r
+#endif\r
+}*/\r
+\r
+//==========================================================================\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CA_Startup\r
+=\r
+= Open all files and load in headers\r
+=\r
+======================\r
+*/\r
+\r
+void CA_Startup(void)\r
+{\r
+#ifdef PROFILE\r
+ unlink("profile.16");\r
+ profilehandle = open("profile.16", O_CREAT | O_WRONLY | O_TEXT);\r
+#endif\r
+/*++++\r
+// MDM begin - (GAMERS EDGE)\r
+//\r
+ if(!FindFile("AUDIO."EXT,NULL,2))\r
+ Quit("CA_Startup(): Can't find audio files.");\r
+//\r
+// MDM end\r
+\r
+#ifndef NOAUDIO\r
+ CAL_SetupAudioFile();\r
+#endif\r
+\r
+// MDM begin - (GAMERS EDGE)\r
+//\r
+ if (!FindFile("GAMEMAPS."EXT,NULL,1))\r
+ Quit("CA_Startup(): Can't find level files.");\r
+//\r
+// MDM end\r
+\r
+#ifndef NOMAPS\r
+ CAL_SetupMapFile ();\r
+#endif\r
+\r
+// MDM begin - (GAMERS EDGE)\r
+//\r
+ if (!FindFile("EGAGRAPH."EXT,NULL,2))\r
+ Quit("CA_Startup(): Can't find graphics files.");\r
+//\r
+// MDM end\r
+\r
+#ifndef NOGRAPHICS\r
+ CAL_SetupGrFile ();\r
+#endif\r
+\r
+ mapon = -1;\r
+ ca_levelbit = 1;\r
+ ca_levelnum = 0;\r
+\r
+ drawcachebox = CAL_DialogDraw;\r
+ updatecachebox = CAL_DialogUpdate;\r
+ finishcachebox = CAL_DialogFinish;*/\r
+}\r
+\r
+//==========================================================================\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CA_Shutdown\r
+=\r
+= Closes all files\r
+=\r
+======================\r
+*/\r
+\r
+void CA_Shutdown(void)\r
+{\r
+#ifdef PROFILE\r
+ close(profilehandle);\r
+#endif\r
+/*++++\r
+ close(maphandle);\r
+ close(grhandle);\r
+ close(audiohandle);*/\r
+}\r
+\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_CacheAudioChunk\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CA_CacheAudioChunk (int chunk)\r
+{\r
+ long pos,compressed;\r
+#ifdef AUDIOHEADERLINKED\r
+ long expanded;\r
+ memptr bigbufferseg;\r
+ byte far *source;\r
+#endif\r
+\r
+ if (audiosegs[chunk])\r
+ {\r
+ MM_SetPurge (&(memptr)audiosegs[chunk],0);\r
+ return; // allready in memory\r
+ }\r
+\r
+// MDM begin - (GAMERS EDGE)\r
+//\r
+ if (!FindFile("AUDIO."EXT,NULL,2))\r
+ Quit("CA_CacheAudioChunk(): Can't find audio files.");\r
+//\r
+// MDM end\r
+\r
+//\r
+// load the chunk into a buffer, either the miscbuffer if it fits, or allocate\r
+// a larger buffer\r
+//\r
+ pos = audiostarts[chunk];\r
+ compressed = audiostarts[chunk+1]-pos;\r
+\r
+ lseek(audiohandle,pos,SEEK_SET);\r
+\r
+#ifndef AUDIOHEADERLINKED\r
+\r
+ MM_GetPtr (&(memptr)audiosegs[chunk],compressed);\r
+ if (mmerror)\r
+ return;\r
+\r
+ CA_FarRead(audiohandle,audiosegs[chunk],compressed);\r
+\r
+#else\r
+\r
+ if (compressed<=BUFFERSIZE)\r
+ {\r
+ CA_FarRead(audiohandle,bufferseg,compressed);\r
+ source = bufferseg;\r
+ }\r
+ else\r
+ {\r
+ MM_GetPtr(&bigbufferseg,compressed);\r
+ if (mmerror)\r
+ return;\r
+ MM_SetLock (&bigbufferseg,true);\r
+ CA_FarRead(audiohandle,bigbufferseg,compressed);\r
+ source = bigbufferseg;\r
+ }\r
+\r
+ expanded = *(long far *)source;\r
+ source += 4; // skip over length\r
+ MM_GetPtr (&(memptr)audiosegs[chunk],expanded);\r
+ if (mmerror)\r
+ goto done;\r
+ CAL_HuffExpand (source,audiosegs[chunk],expanded,audiohuffman);\r
+\r
+done:\r
+ if (compressed>BUFFERSIZE)\r
+ MM_FreePtr(&bigbufferseg);\r
+#endif\r
+}*/\r
+\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_LoadAllSounds\r
+=\r
+= Purges all sounds, then loads all new ones (mode switch)\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CA_LoadAllSounds (void)\r
+{\r
+ unsigned start,i;\r
+\r
+ switch (oldsoundmode)\r
+ {\r
+ case sdm_Off:\r
+ goto cachein;\r
+ case sdm_PC:\r
+ start = STARTPCSOUNDS;\r
+ break;\r
+ case sdm_AdLib:\r
+ start = STARTADLIBSOUNDS;\r
+ break;\r
+ }\r
+\r
+ for (i=0;i<NUMSOUNDS;i++,start++)\r
+ if (audiosegs[start])\r
+ MM_SetPurge (&(memptr)audiosegs[start],3); // make purgable\r
+\r
+cachein:\r
+\r
+ switch (SoundMode)\r
+ {\r
+ case sdm_Off:\r
+ return;\r
+ case sdm_PC:\r
+ start = STARTPCSOUNDS;\r
+ break;\r
+ case sdm_AdLib:\r
+ start = STARTADLIBSOUNDS;\r
+ break;\r
+ }\r
+\r
+ for (i=0;i<NUMSOUNDS;i++,start++)\r
+ CA_CacheAudioChunk (start);\r
+\r
+ oldsoundmode = SoundMode;\r
+}*/\r
+\r
+//===========================================================================\r
+\r
+//++++#if GRMODE == EGAGR\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_ShiftSprite\r
+=\r
+= Make a shifted (one byte wider) copy of a sprite into another area\r
+=\r
+======================\r
+*/\r
+/*++++\r
+unsigned static sheight,swidth;\r
+boolean static dothemask;\r
+\r
+void CAL_ShiftSprite (unsigned segment,unsigned source,unsigned dest,\r
+ unsigned width, unsigned height, unsigned pixshift, boolean domask)\r
+{\r
+\r
+ sheight = height; // because we are going to reassign bp\r
+ swidth = width;\r
+ dothemask = domask;\r
+\r
+asm mov ax,[segment]\r
+asm mov ds,ax // source and dest are in same segment, and all local\r
+\r
+asm mov bx,[source]\r
+asm mov di,[dest]\r
+\r
+asm mov bp,[pixshift]\r
+asm shl bp,1\r
+asm mov bp,WORD PTR [shifttabletable+bp] // bp holds pointer to shift table\r
+\r
+asm cmp [ss:dothemask],0\r
+asm je skipmask\r
+\r
+//\r
+// table shift the mask\r
+//\r
+asm mov dx,[ss:sheight]\r
+\r
+domaskrow:\r
+\r
+asm mov BYTE PTR [di],255 // 0xff first byte\r
+asm mov cx,ss:[swidth]\r
+\r
+domaskbyte:\r
+\r
+asm mov al,[bx] // source\r
+asm not al\r
+asm inc bx // next source byte\r
+asm xor ah,ah\r
+asm shl ax,1\r
+asm mov si,ax\r
+asm mov ax,[bp+si] // table shift into two bytes\r
+asm not ax\r
+asm and [di],al // and with first byte\r
+asm inc di\r
+asm mov [di],ah // replace next byte\r
+\r
+asm loop domaskbyte\r
+\r
+asm inc di // the last shifted byte has 1s in it\r
+asm dec dx\r
+asm jnz domaskrow\r
+\r
+skipmask:\r
+\r
+//\r
+// table shift the data\r
+//\r
+asm mov dx,ss:[sheight]\r
+asm shl dx,1\r
+asm shl dx,1 // four planes of data\r
+\r
+dodatarow:\r
+\r
+asm mov BYTE PTR [di],0 // 0 first byte\r
+asm mov cx,ss:[swidth]\r
+\r
+dodatabyte:\r
+\r
+asm mov al,[bx] // source\r
+asm inc bx // next source byte\r
+asm xor ah,ah\r
+asm shl ax,1\r
+asm mov si,ax\r
+asm mov ax,[bp+si] // table shift into two bytes\r
+asm or [di],al // or with first byte\r
+asm inc di\r
+asm mov [di],ah // replace next byte\r
+\r
+asm loop dodatabyte\r
+\r
+asm inc di // the last shifted byte has 0s in it\r
+asm dec dx\r
+asm jnz dodatarow\r
+\r
+//\r
+// done\r
+//\r
+\r
+asm mov ax,ss // restore data segment\r
+asm mov ds,ax\r
+\r
+}\r
+\r
+#endif\r
+*/\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_CacheSprite\r
+=\r
+= Generate shifts and set up sprite structure for a given sprite\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CAL_CacheSprite (int chunk, byte far *compressed)\r
+{\r
+ int i;\r
+ unsigned shiftstarts[5];\r
+ unsigned smallplane,bigplane,expanded;\r
+ spritetabletype far *spr;\r
+ spritetype _seg *dest;\r
+\r
+#if GRMODE == CGAGR\r
+//\r
+// CGA has no pel panning, so shifts are never needed\r
+//\r
+ spr = &spritetable[chunk-STARTSPRITES];\r
+ smallplane = spr->width*spr->height;\r
+ MM_GetPtr (&grsegs[chunk],smallplane*2+MAXSHIFTS*6);\r
+ if (mmerror)\r
+ return;\r
+ dest = (spritetype _seg *)grsegs[chunk];\r
+ dest->sourceoffset[0] = MAXSHIFTS*6; // start data after 3 unsigned tables\r
+ dest->planesize[0] = smallplane;\r
+ dest->width[0] = spr->width;\r
+\r
+//\r
+// expand the unshifted shape\r
+//\r
+ CAL_HuffExpand (compressed, &dest->data[0],smallplane*2,grhuffman);\r
+\r
+#endif\r
+\r
+\r
+#if GRMODE == EGAGR\r
+\r
+//\r
+// calculate sizes\r
+//\r
+ spr = &spritetable[chunk-STARTSPRITES];\r
+ smallplane = spr->width*spr->height;\r
+ bigplane = (spr->width+1)*spr->height;\r
+\r
+ shiftstarts[0] = MAXSHIFTS*6; // start data after 3 unsigned tables\r
+ shiftstarts[1] = shiftstarts[0] + smallplane*5; // 5 planes in a sprite\r
+ shiftstarts[2] = shiftstarts[1] + bigplane*5;\r
+ shiftstarts[3] = shiftstarts[2] + bigplane*5;\r
+ shiftstarts[4] = shiftstarts[3] + bigplane*5; // nothing ever put here\r
+\r
+ expanded = shiftstarts[spr->shifts];\r
+ MM_GetPtr (&grsegs[chunk],expanded);\r
+ if (mmerror)\r
+ return;\r
+ dest = (spritetype _seg *)grsegs[chunk];\r
+\r
+//\r
+// expand the unshifted shape\r
+//\r
+ CAL_HuffExpand (compressed, &dest->data[0],smallplane*5,grhuffman);\r
+\r
+//\r
+// make the shifts!\r
+//\r
+ switch (spr->shifts)\r
+ {\r
+ case 1:\r
+ for (i=0;i<4;i++)\r
+ {\r
+ dest->sourceoffset[i] = shiftstarts[0];\r
+ dest->planesize[i] = smallplane;\r
+ dest->width[i] = spr->width;\r
+ }\r
+ break;\r
+\r
+ case 2:\r
+ for (i=0;i<2;i++)\r
+ {\r
+ dest->sourceoffset[i] = shiftstarts[0];\r
+ dest->planesize[i] = smallplane;\r
+ dest->width[i] = spr->width;\r
+ }\r
+ for (i=2;i<4;i++)\r
+ {\r
+ dest->sourceoffset[i] = shiftstarts[1];\r
+ dest->planesize[i] = bigplane;\r
+ dest->width[i] = spr->width+1;\r
+ }\r
+ CAL_ShiftSprite ((unsigned)grsegs[chunk],dest->sourceoffset[0],\r
+ dest->sourceoffset[2],spr->width,spr->height,4,true);\r
+ break;\r
+\r
+ case 4:\r
+ dest->sourceoffset[0] = shiftstarts[0];\r
+ dest->planesize[0] = smallplane;\r
+ dest->width[0] = spr->width;\r
+\r
+ dest->sourceoffset[1] = shiftstarts[1];\r
+ dest->planesize[1] = bigplane;\r
+ dest->width[1] = spr->width+1;\r
+ CAL_ShiftSprite ((unsigned)grsegs[chunk],dest->sourceoffset[0],\r
+ dest->sourceoffset[1],spr->width,spr->height,2,true);\r
+\r
+ dest->sourceoffset[2] = shiftstarts[2];\r
+ dest->planesize[2] = bigplane;\r
+ dest->width[2] = spr->width+1;\r
+ CAL_ShiftSprite ((unsigned)grsegs[chunk],dest->sourceoffset[0],\r
+ dest->sourceoffset[2],spr->width,spr->height,4,true);\r
+\r
+ dest->sourceoffset[3] = shiftstarts[3];\r
+ dest->planesize[3] = bigplane;\r
+ dest->width[3] = spr->width+1;\r
+ CAL_ShiftSprite ((unsigned)grsegs[chunk],dest->sourceoffset[0],\r
+ dest->sourceoffset[3],spr->width,spr->height,6,true);\r
+\r
+ break;\r
+\r
+ default:\r
+ Quit ("CAL_CacheSprite: Bad shifts number!");\r
+ }\r
+\r
+#endif\r
+}*/\r
+\r
+//===========================================================================\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_ExpandGrChunk\r
+=\r
+= Does whatever is needed with a pointer to a compressed chunk\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CAL_ExpandGrChunk (int chunk, byte far *source)\r
+{\r
+ long expanded;\r
+\r
+\r
+ if (chunk >= STARTTILE8 && chunk < STARTEXTERNS)\r
+ {\r
+ //\r
+ // expanded sizes of tile8/16/32 are implicit\r
+ //\r
+\r
+#if GRMODE == EGAGR\r
+#define BLOCK 32\r
+#define MASKBLOCK 40\r
+#endif\r
+\r
+#if GRMODE == CGAGR\r
+#define BLOCK 16\r
+#define MASKBLOCK 32\r
+#endif\r
+\r
+ if (chunk<STARTTILE8M) // tile 8s are all in one chunk!\r
+ expanded = BLOCK*NUMTILE8;\r
+ else if (chunk<STARTTILE16)\r
+ expanded = MASKBLOCK*NUMTILE8M;\r
+ else if (chunk<STARTTILE16M) // all other tiles are one/chunk\r
+ expanded = BLOCK*4;\r
+ else if (chunk<STARTTILE32)\r
+ expanded = MASKBLOCK*4;\r
+ else if (chunk<STARTTILE32M)\r
+ expanded = BLOCK*16;\r
+ else\r
+ expanded = MASKBLOCK*16;\r
+ }\r
+ else\r
+ {\r
+ //\r
+ // everything else has an explicit size longword\r
+ //\r
+ expanded = *(long far *)source;\r
+ source += 4; // skip over length\r
+ }\r
+\r
+//\r
+// allocate final space, decompress it, and free bigbuffer\r
+// Sprites need to have shifts made and various other junk\r
+//\r
+ if (chunk>=STARTSPRITES && chunk< STARTTILE8)\r
+ CAL_CacheSprite(chunk,source);\r
+ else\r
+ {\r
+ MM_GetPtr (&grsegs[chunk],expanded);\r
+ if (mmerror)\r
+ return;\r
+ CAL_HuffExpand (source,grsegs[chunk],expanded,grhuffman);\r
+ }\r
+}\r
+*/\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_ReadGrChunk\r
+=\r
+= Gets a chunk off disk, optimizing reads to general buffer\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CAL_ReadGrChunk (int chunk)\r
+{\r
+ long pos,compressed;\r
+ memptr bigbufferseg;\r
+ byte far *source;\r
+ int next;\r
+\r
+//\r
+// load the chunk into a buffer, either the miscbuffer if it fits, or allocate\r
+// a larger buffer\r
+//\r
+ pos = GRFILEPOS(chunk);\r
+ if (pos<0) // $FFFFFFFF start is a sparse tile\r
+ return;\r
+\r
+ next = chunk +1;\r
+ while (GRFILEPOS(next) == -1) // skip past any sparse tiles\r
+ next++;\r
+\r
+ compressed = GRFILEPOS(next)-pos;\r
+\r
+ lseek(grhandle,pos,SEEK_SET);\r
+\r
+ if (compressed<=BUFFERSIZE)\r
+ {\r
+ CA_FarRead(grhandle,bufferseg,compressed);\r
+ source = bufferseg;\r
+ }\r
+ else\r
+ {\r
+ MM_GetPtr(&bigbufferseg,compressed);\r
+ if (mmerror)\r
+ return;\r
+ MM_SetLock (&bigbufferseg,true);\r
+ CA_FarRead(grhandle,bigbufferseg,compressed);\r
+ source = bigbufferseg;\r
+ }\r
+\r
+ CAL_ExpandGrChunk (chunk,source);\r
+\r
+ if (compressed>BUFFERSIZE)\r
+ MM_FreePtr(&bigbufferseg);\r
+}\r
+*/\r
+/*\r
+======================\r
+=\r
+= CA_CacheGrChunk\r
+=\r
+= Makes sure a given chunk is in memory, loadiing it if needed\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CA_CacheGrChunk (int chunk)\r
+{\r
+ long pos,compressed;\r
+ memptr bigbufferseg;\r
+ byte far *source;\r
+ int next;\r
+\r
+ grneeded[chunk] |= ca_levelbit; // make sure it doesn't get removed\r
+ if (grsegs[chunk])\r
+ {\r
+ MM_SetPurge (&grsegs[chunk],0);\r
+ return; // allready in memory\r
+ }\r
+\r
+// MDM begin - (GAMERS EDGE)\r
+//\r
+ if (!FindFile("EGAGRAPH."EXT,NULL,2))\r
+ Quit("CA_CacheGrChunk(): Can't find graphics files.");\r
+//\r
+// MDM end\r
+\r
+//\r
+// load the chunk into a buffer, either the miscbuffer if it fits, or allocate\r
+// a larger buffer\r
+//\r
+ pos = GRFILEPOS(chunk);\r
+ if (pos<0) // $FFFFFFFF start is a sparse tile\r
+ return;\r
+\r
+ next = chunk +1;\r
+ while (GRFILEPOS(next) == -1) // skip past any sparse tiles\r
+ next++;\r
+\r
+ compressed = GRFILEPOS(next)-pos;\r
+\r
+ lseek(grhandle,pos,SEEK_SET);\r
+\r
+ if (compressed<=BUFFERSIZE)\r
+ {\r
+ CA_FarRead(grhandle,bufferseg,compressed);\r
+ source = bufferseg;\r
+ }\r
+ else\r
+ {\r
+ MM_GetPtr(&bigbufferseg,compressed);\r
+ MM_SetLock (&bigbufferseg,true);\r
+ CA_FarRead(grhandle,bigbufferseg,compressed);\r
+ source = bigbufferseg;\r
+ }\r
+\r
+ CAL_ExpandGrChunk (chunk,source);\r
+\r
+ if (compressed>BUFFERSIZE)\r
+ MM_FreePtr(&bigbufferseg);\r
+}\r
+*/\r
+\r
+\r
+//==========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_CacheMap\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CA_CacheMap (int mapnum)\r
+{\r
+ long pos,compressed;\r
+ int plane;\r
+ memptr *dest,bigbufferseg;\r
+ unsigned size;\r
+ unsigned far *source;\r
+#ifdef MAPHEADERLINKED\r
+ memptr buffer2seg;\r
+ long expanded;\r
+#endif\r
+\r
+\r
+// MDM begin - (GAMERS EDGE)\r
+//\r
+ if (!FindFile("GAMEMAPS."EXT,NULL,1))\r
+ Quit("CA_CacheMap(): Can't find level files.");\r
+//\r
+// MDM end\r
+\r
+\r
+//\r
+// free up memory from last map\r
+//\r
+ if (mapon>-1 && mapheaderseg[mapon])\r
+ MM_SetPurge (&(memptr)mapheaderseg[mapon],3);\r
+ for (plane=0;plane<MAPPLANES;plane++)\r
+ if (mapsegs[plane])\r
+ MM_FreePtr (&(memptr)mapsegs[plane]);\r
+\r
+ mapon = mapnum;\r
+\r
+\r
+//\r
+// load map header\r
+// The header will be cached if it is still around\r
+//\r
+ if (!mapheaderseg[mapnum])\r
+ {\r
+ pos = ((mapfiletype _seg *)tinf)->headeroffsets[mapnum];\r
+ if (pos<0) // $FFFFFFFF start is a sparse map\r
+ Quit ("CA_CacheMap: Tried to load a non existent map!");\r
+\r
+ MM_GetPtr(&(memptr)mapheaderseg[mapnum],sizeof(maptype));\r
+ lseek(maphandle,pos,SEEK_SET);\r
+ CA_FarRead (maphandle,(memptr)mapheaderseg[mapnum],sizeof(maptype));\r
+ }\r
+ else\r
+ MM_SetPurge (&(memptr)mapheaderseg[mapnum],0);\r
+\r
+//\r
+// load the planes in\r
+// If a plane's pointer still exists it will be overwritten (levels are\r
+// allways reloaded, never cached)\r
+//\r
+\r
+ size = mapheaderseg[mapnum]->width * mapheaderseg[mapnum]->height * 2;\r
+\r
+ for (plane = 0; plane<MAPPLANES; plane++)\r
+ {\r
+ pos = mapheaderseg[mapnum]->planestart[plane];\r
+ compressed = mapheaderseg[mapnum]->planelength[plane];\r
+\r
+ if (!compressed)\r
+ continue; // the plane is not used in this game\r
+\r
+ dest = &(memptr)mapsegs[plane];\r
+ MM_GetPtr(dest,size);\r
+\r
+ lseek(maphandle,pos,SEEK_SET);\r
+ if (compressed<=BUFFERSIZE)\r
+ source = bufferseg;\r
+ else\r
+ {\r
+ MM_GetPtr(&bigbufferseg,compressed);\r
+ MM_SetLock (&bigbufferseg,true);\r
+ source = bigbufferseg;\r
+ }\r
+\r
+ CA_FarRead(maphandle,(byte far *)source,compressed);\r
+#ifdef MAPHEADERLINKED\r
+ //\r
+ // unhuffman, then unRLEW\r
+ // The huffman'd chunk has a two byte expanded length first\r
+ // The resulting RLEW chunk also does, even though it's not really\r
+ // needed\r
+ //\r
+ expanded = *source;\r
+ source++;\r
+ MM_GetPtr (&buffer2seg,expanded);\r
+ CAL_CarmackExpand (source, (unsigned far *)buffer2seg,expanded);\r
+ CA_RLEWexpand (((unsigned far *)buffer2seg)+1,*dest,size,\r
+ ((mapfiletype _seg *)tinf)->RLEWtag);\r
+ MM_FreePtr (&buffer2seg);\r
+\r
+#else\r
+ //\r
+ // unRLEW, skipping expanded length\r
+ //\r
+ CA_RLEWexpand (source+1, *dest,size,\r
+ ((mapfiletype _seg *)tinf)->RLEWtag);\r
+#endif\r
+\r
+ if (compressed>BUFFERSIZE)\r
+ MM_FreePtr(&bigbufferseg);\r
+ }\r
+}*/\r
+\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_UpLevel\r
+=\r
+= Goes up a bit level in the needed lists and clears it out.\r
+= Everything is made purgable\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CA_UpLevel (void)\r
+{\r
+ if (ca_levelnum==7)\r
+ Quit ("CA_UpLevel: Up past level 7!");\r
+\r
+ ca_levelbit<<=1;\r
+ ca_levelnum++;\r
+}*/\r
+\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_DownLevel\r
+=\r
+= Goes down a bit level in the needed lists and recaches\r
+= everything from the lower level\r
+=\r
+======================\r
+*/\r
+/*++\r
+void CA_DownLevel (void)\r
+{\r
+ if (!ca_levelnum)\r
+ Quit ("CA_DownLevel: Down past level 0!");\r
+ ca_levelbit>>=1;\r
+ ca_levelnum--;\r
+ CA_CacheMarks(NULL);\r
+}*/\r
+\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_ClearMarks\r
+=\r
+= Clears out all the marks at the current level\r
+=\r
+======================\r
+*/\r
+/*\r
+void CA_ClearMarks (void)\r
+{\r
+ int i;\r
+\r
+ for (i=0;i<NUMCHUNKS;i++)\r
+ grneeded[i]&=~ca_levelbit;\r
+}\r
+*/\r
+\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_ClearAllMarks\r
+=\r
+= Clears out all the marks on all the levels\r
+=\r
+======================\r
+*/\r
+/*\r
+void CA_ClearAllMarks (void)\r
+{\r
+ _fmemset (grneeded,0,sizeof(grneeded));\r
+ ca_levelbit = 1;\r
+ ca_levelnum = 0;\r
+}\r
+*/\r
+\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_FreeGraphics\r
+=\r
+======================\r
+*/\r
+/*++++\r
+void CA_FreeGraphics (void)\r
+{\r
+ int i;\r
+\r
+ for (i=0;i<NUMCHUNKS;i++)\r
+ if (grsegs[i])\r
+ MM_SetPurge (&(memptr)grsegs[i],3);\r
+}\r
+*/\r
+\r
+/*\r
+======================\r
+=\r
+= CA_SetAllPurge\r
+=\r
+= Make everything possible purgable\r
+=\r
+======================\r
+*/\r
+/*++++++++\r
+void CA_SetAllPurge (void)\r
+{\r
+ int i;\r
+\r
+ CA_ClearMarks ();\r
+\r
+//\r
+// free cursor sprite and background save\r
+//\r
+ VW_FreeCursor ();\r
+\r
+//\r
+// free map headers and map planes\r
+//\r
+ for (i=0;i<NUMMAPS;i++)\r
+ if (mapheaderseg[i])\r
+ MM_SetPurge (&(memptr)mapheaderseg[i],3);\r
+\r
+ for (i=0;i<3;i++)\r
+ if (mapsegs[i])\r
+ MM_FreePtr (&(memptr)mapsegs[i]);\r
+\r
+//\r
+// free sounds\r
+//\r
+ for (i=0;i<NUMSNDCHUNKS;i++)\r
+ if (audiosegs[i])\r
+ MM_SetPurge (&(memptr)audiosegs[i],3);\r
+\r
+//\r
+// free graphics\r
+//\r
+ CA_FreeGraphics ();\r
+}\r
+\r
+\r
+void CA_SetGrPurge (void)\r
+{\r
+ int i;\r
+\r
+//\r
+// free graphics\r
+//\r
+ for (i=0;i<NUMCHUNKS;i++)\r
+ if (grsegs[i])\r
+ MM_SetPurge (&(memptr)grsegs[i],3);\r
+}*/\r
+\r
+\r
+//===========================================================================\r
+\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_DialogDraw\r
+=\r
+======================\r
+*/\r
+/*\r
+#define NUMBARS (17l*8)\r
+#define BARSTEP 8\r
+\r
+unsigned thx,thy,lastx;\r
+long barx,barstep;\r
+\r
+void CAL_DialogDraw (char *title,unsigned numcache)\r
+{\r
+ unsigned homex,homey,x;\r
+\r
+ barstep = (NUMBARS<<16)/numcache;\r
+\r
+//\r
+// draw dialog window (masked tiles 12 - 20 are window borders)\r
+//\r
+ US_CenterWindow (20,8);\r
+ homex = PrintX;\r
+ homey = PrintY;\r
+\r
+ US_CPrint ("Loading");\r
+ fontcolor = F_SECONDCOLOR;\r
+ US_CPrint (title);\r
+ fontcolor = F_BLACK;\r
+\r
+//\r
+// draw thermometer bar\r
+//\r
+ thx = homex + 8;\r
+ thy = homey + 32;\r
+ VWB_DrawTile8(thx,thy,0); // CAT3D numbers\r
+ VWB_DrawTile8(thx,thy+8,3);\r
+ VWB_DrawTile8(thx,thy+16,6);\r
+ VWB_DrawTile8(thx+17*8,thy,2);\r
+ VWB_DrawTile8(thx+17*8,thy+8,5);\r
+ VWB_DrawTile8(thx+17*8,thy+16,8);\r
+ for (x=thx+8;x<thx+17*8;x+=8)\r
+ {\r
+ VWB_DrawTile8(x,thy,1);\r
+ VWB_DrawTile8(x,thy+8,4);\r
+ VWB_DrawTile8(x,thy+16,7);\r
+ }\r
+\r
+ thx += 4; // first line location\r
+ thy += 5;\r
+ barx = (long)thx<<16;\r
+ lastx = thx;\r
+\r
+ VW_UpdateScreen();\r
+}\r
+*/\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_DialogUpdate\r
+=\r
+======================\r
+*/\r
+/*\r
+void CAL_DialogUpdate (void)\r
+{\r
+ unsigned x,xh;\r
+\r
+ barx+=barstep;\r
+ xh = barx>>16;\r
+ if (xh - lastx > BARSTEP)\r
+ {\r
+ for (x=lastx;x<=xh;x++)\r
+#if GRMODE == EGAGR\r
+ VWB_Vlin (thy,thy+13,x,14);\r
+#endif\r
+#if GRMODE == CGAGR\r
+ VWB_Vlin (thy,thy+13,x,SECONDCOLOR);\r
+#endif\r
+ lastx = xh;\r
+ VW_UpdateScreen();\r
+ }\r
+}*/\r
+\r
+/*\r
+======================\r
+=\r
+= CAL_DialogFinish\r
+=\r
+======================\r
+*/\r
+/*\r
+void CAL_DialogFinish (void)\r
+{\r
+ unsigned x,xh;\r
+\r
+ xh = thx + NUMBARS;\r
+ for (x=lastx;x<=xh;x++)\r
+#if GRMODE == EGAGR\r
+ VWB_Vlin (thy,thy+13,x,14);\r
+#endif\r
+#if GRMODE == CGAGR\r
+ VWB_Vlin (thy,thy+13,x,SECONDCOLOR);\r
+#endif\r
+ VW_UpdateScreen();\r
+\r
+}*/\r
+\r
+//===========================================================================\r
+\r
+/*\r
+======================\r
+=\r
+= CA_CacheMarks\r
+=\r
+======================\r
+*//*\r
+#define MAXEMPTYREAD 1024\r
+\r
+void CA_CacheMarks (char *title)\r
+{\r
+ boolean dialog;\r
+ int i,next,numcache;\r
+ long pos,endpos,nextpos,nextendpos,compressed;\r
+ long bufferstart,bufferend; // file position of general buffer\r
+ byte far *source;\r
+ memptr bigbufferseg;\r
+\r
+ dialog = (title!=NULL);\r
+\r
+ numcache = 0;\r
+//\r
+// go through and make everything not needed purgable\r
+//\r
+ for (i=0;i<NUMCHUNKS;i++)\r
+ if (grneeded[i]&ca_levelbit)\r
+ {\r
+ if (grsegs[i]) // its allready in memory, make\r
+ MM_SetPurge(&grsegs[i],0); // sure it stays there!\r
+ else\r
+ numcache++;\r
+ }\r
+ else\r
+ {\r
+ if (grsegs[i]) // not needed, so make it purgeable\r
+ MM_SetPurge(&grsegs[i],3);\r
+ }\r
+\r
+ if (!numcache) // nothing to cache!\r
+ return;\r
+\r
+// MDM begin - (GAMERS EDGE)\r
+//\r
+ if (!FindFile("EGAGRAPH."EXT,NULL,2))\r
+ Quit("CA_CacheMarks(): Can't find graphics files.");\r
+//\r
+// MDM end\r
+\r
+ if (dialog)\r
+ {\r
+#ifdef PROFILE\r
+ write(profilehandle,title,strlen(title));\r
+ write(profilehandle,"\n",1);\r
+#endif\r
+ if (drawcachebox)\r
+ drawcachebox(title,numcache);\r
+ }\r
+\r
+//\r
+// go through and load in anything still needed\r
+//\r
+ bufferstart = bufferend = 0; // nothing good in buffer now\r
+\r
+ for (i=0;i<NUMCHUNKS;i++)\r
+ if ( (grneeded[i]&ca_levelbit) && !grsegs[i])\r
+ {\r
+//\r
+// update thermometer\r
+//\r
+ if (dialog && updatecachebox)\r
+ updatecachebox ();\r
+\r
+ pos = GRFILEPOS(i);\r
+ if (pos<0)\r
+ continue;\r
+\r
+ next = i +1;\r
+ while (GRFILEPOS(next) == -1) // skip past any sparse tiles\r
+ next++;\r
+\r
+ compressed = GRFILEPOS(next)-pos;\r
+ endpos = pos+compressed;\r
+\r
+ if (compressed<=BUFFERSIZE)\r
+ {\r
+ if (bufferstart<=pos\r
+ && bufferend>= endpos)\r
+ {\r
+ // data is allready in buffer\r
+ source = (byte _seg *)bufferseg+(pos-bufferstart);\r
+ }\r
+ else\r
+ {\r
+ // load buffer with a new block from disk\r
+ // try to get as many of the needed blocks in as possible\r
+ while ( next < NUMCHUNKS )\r
+ {\r
+ while (next < NUMCHUNKS &&\r
+ !(grneeded[next]&ca_levelbit && !grsegs[next]))\r
+ next++;\r
+ if (next == NUMCHUNKS)\r
+ continue;\r
+\r
+ nextpos = GRFILEPOS(next);\r
+ while (GRFILEPOS(++next) == -1) // skip past any sparse tiles\r
+ ;\r
+ nextendpos = GRFILEPOS(next);\r
+ if (nextpos - endpos <= MAXEMPTYREAD\r
+ && nextendpos-pos <= BUFFERSIZE)\r
+ endpos = nextendpos;\r
+ else\r
+ next = NUMCHUNKS; // read pos to posend\r
+ }\r
+\r
+ lseek(grhandle,pos,SEEK_SET);\r
+ CA_FarRead(grhandle,bufferseg,endpos-pos);\r
+ bufferstart = pos;\r
+ bufferend = endpos;\r
+ source = bufferseg;\r
+ }\r
+ }\r
+ else\r
+ {\r
+ // big chunk, allocate temporary buffer\r
+ MM_GetPtr(&bigbufferseg,compressed);\r
+ if (mmerror)\r
+ return;\r
+ MM_SetLock (&bigbufferseg,true);\r
+ lseek(grhandle,pos,SEEK_SET);\r
+ CA_FarRead(grhandle,bigbufferseg,compressed);\r
+ source = bigbufferseg;\r
+ }\r
+\r
+ CAL_ExpandGrChunk (i,source);\r
+ if (mmerror)\r
+ return;\r
+\r
+ if (compressed>BUFFERSIZE)\r
+ MM_FreePtr(&bigbufferseg);\r
+\r
+ }\r
+\r
+//\r
+// finish up any thermometer remnants\r
+//\r
+ if (dialog && finishcachebox)\r
+ finishcachebox();\r
+}*/\r
--- /dev/null
+/* Catacomb Apocalypse Source Code\r
+ * Copyright (C) 1993-2014 Flat Rock Software\r
+ *\r
+ * This program is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * This program is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License along\r
+ * with this program; if not, write to the Free Software Foundation, Inc.,\r
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\r
+ */\r
+\r
+// ID_CA.H\r
+#ifndef __16_CA__\r
+#define __16_CA__\r
+\r
+#ifndef __16_MM__\r
+#include "16_head.h"\r
+#include "16_mm.h"\r
+#endif\r
+\r
+//===========================================================================\r
+\r
+//#define NOMAPS\r
+//#define NOGRAPHICS\r
+//#define NOAUDIO\r
+\r
+//#define MAPHEADERLINKED\r
+//#define GRHEADERLINKED\r
+//#define AUDIOHEADERLINKED\r
+\r
+//#define NUMMAPS 39\r
+//#define MAPPLANES 3
+#define PROFILE\r
+\r
+//===========================================================================\r
+\r
+/*typedef struct\r
+{\r
+ long planestart[3];\r
+ unsigned planelength[3];\r
+ unsigned width,height;\r
+ char name[16];\r
+} maptype;*/\r
+\r
+//===========================================================================\r
+\r
+/*extern byte _seg *tinf;\r
+extern int mapon;\r
+\r
+extern unsigned _seg *mapsegs[3];\r
+extern maptype _seg *mapheaderseg[NUMMAPS];\r
+extern byte _seg *audiosegs[NUMSNDCHUNKS];\r
+extern void _seg *grsegs[NUMCHUNKS];\r
+\r
+extern byte far grneeded[NUMCHUNKS];\r
+extern byte ca_levelbit,ca_levelnum;\r
+\r
+extern char *titleptr[8];*/\r
+\r
+extern int profilehandle,debughandle;\r
+\r
+//\r
+// hooks for custom cache dialogs\r
+//\r
+extern void (*drawcachebox) (char *title, unsigned numcache);\r
+extern void (*updatecachebox) (void);\r
+extern void (*finishcachebox) (void);\r
+\r
+//===========================================================================\r
+\r
+// just for the score box reshifting\r
+\r
+//void CAL_ShiftSprite (unsigned segment,unsigned source,unsigned dest,unsigned width, unsigned height, unsigned pixshift, boolean domask);\r
+\r
+//===========================================================================\r
+
+void CA_OpenDebug (void);\r
+void CA_CloseDebug (void);
+boolean CA_FarRead (int handle, byte huge *dest, dword length, mminfo_t *mm);\r
+boolean CA_FarWrite (int handle, byte huge *source, dword length, mminfo_t *mm);
+\r
+boolean CA_ReadFile (char *filename, memptr *ptr, mminfo_t *mm);\r
+boolean CA_LoadFile (char *filename, memptr *ptr, mminfo_t *mm, mminfotype *mmi);
+\r
+//long CA_RLEWCompress (unsigned huge *source, long length, unsigned huge *dest,unsigned rlewtag);\r
+\r
+//void CA_RLEWexpand (unsigned huge *source, unsigned huge *dest,long length,unsigned rlewtag);\r
+\r
+void CA_Startup (void);\r
+void CA_Shutdown (void);\r
+\r
+//void CA_CacheAudioChunk (int chunk);\r
+//void CA_LoadAllSounds (void);\r
+\r
+/*void CA_UpLevel (void);\r
+void CA_DownLevel (void);\r
+\r
+void CA_SetAllPurge (void);\r
+\r
+void CA_ClearMarks (void);\r
+void CA_ClearAllMarks (void);\r
+\r
+#define CA_MarkGrChunk(chunk) grneeded[chunk]|=ca_levelbit\r
+\r
+void CA_CacheGrChunk (int chunk);\r
+void CA_CacheMap (int mapnum);\r
+\r
+void CA_CacheMarks (char *title);*/\r
+#endif\r
--- /dev/null
+/* Project 16 Source Code~
+ * Copyright (C) 2012-2015 sparky4 & pngwen & andrius4669
+ *
+ * This file is part of Project 16.
+ *
+ * Project 16 is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Project 16 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>, or
+ * write to the Free Software Foundation, Inc., 51 Franklin Street,
+ * Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include "16_head.h"
+
+/* Function: Wait **********************************************************\r
+*\r
+* Parameters: wait - time in microseconds\r
+*\r
+* Description: pauses for a specified number of microseconds.\r
+*\r
+*/\r
+void wait(clock_t wait){\r
+ clock_t goal;\r
+\r
+ if(!wait) return;\r
+\r
+ goal = wait + clock();\r
+ while((goal > clock()) && !kbhit()) ;\r
+} /* End of wait */
+
+void* AllocateLargestFreeBlock(size_t* Size)
+{
+ size_t s0, s1;
+ void* p;
+
+ s0 = ~(size_t)0 ^ (~(size_t)0 >> 1);
+
+ while (s0 && (p = malloc(s0)) == NULL)
+ s0 >>= 1;
+
+ if (p)
+ free(p);
+
+ s1 = s0 >> 1;
+
+ while (s1)
+ {
+ if ((p = malloc(s0 + s1)) != NULL)
+ {
+ s0 += s1;
+ free(p);
+ }
+ s1 >>= 1;
+ }
+
+ while (s0 && (p = malloc(s0)) == NULL)
+ s0 ^= s0 & -s0;
+
+ *Size = s0;
+ return p;
+}
+
+size_t GetFreeSize(void)
+{
+ size_t total = 0;
+ void* pFirst = NULL;
+ void* pLast = NULL;
+
+ for (;;)
+ {
+ size_t largest;
+ void* p = AllocateLargestFreeBlock(&largest);
+
+ if (largest < sizeof(void*))
+ {
+ if (p != NULL)
+ free(p);
+ break;
+ }
+
+ *(void**)p = NULL;
+
+ total += largest;
+
+ if (pFirst == NULL)
+ pFirst = p;
+
+ if (pLast != NULL)
+ *(void**)pLast = p;
+
+ pLast = p;
+ }
+
+ while (pFirst != NULL)
+ {
+ void* p = *(void**)pFirst;
+ free(pFirst);
+ pFirst = p;
+ }
+
+ return total;
+}
+
+void far* AllocateLargestFarFreeBlock(size_t far* Size)
+{
+ size_t s0, s1;
+ void far* p;
+
+ s0 = ~(size_t)0 ^ (~(size_t)0 >> 1);
+ while (s0 && (p = _fmalloc(s0)) == NULL)
+ s0 >>= 1;
+
+ if (p)
+ _ffree(p);
+
+ s1 = s0 >> 1;
+ while (s1)
+ {
+ if ((p = _fmalloc(s0 + s1)) != NULL)
+ {
+ s0 += s1;
+ _ffree(p);
+ }
+ s1 >>= 1;
+ }
+ while (s0 && (p = _fmalloc(s0)) == NULL)
+ s0 ^= s0 & -s0;
+
+ *Size = s0;
+ return p;
+}
+
+size_t GetFarFreeSize(void)
+{
+ size_t total = 0;
+ void far* pFirst = NULL;
+ void far* pLast = NULL;
+ for(;;)
+ {
+ size_t largest;
+ void far* p = AllocateLargestFarFreeBlock(&largest);
+ if (largest < sizeof(void far*))
+ {
+ if (p != NULL)
+ _ffree(p);
+ break;
+ }
+ *(void far* far*)p = NULL;
+ total += largest;
+ if (pFirst == NULL)
+ pFirst = p;
+
+ if (pLast != NULL)
+ *(void far* far*)pLast = p;
+ pLast = p;
+ }
+
+ while (pFirst != NULL)
+ {
+ void far* p = *(void far* far*)pFirst;
+ _ffree(pFirst);
+ pFirst = p;
+ }
+ return total;
+}
+
+long int
+filesize(FILE *fp)\r
+{\r
+ long int save_pos, size_of_file;\r
+\r
+ save_pos = ftell(fp);\r
+ fseek(fp, 0L, SEEK_END);\r
+ size_of_file = ftell(fp);\r
+ fseek(fp, save_pos, SEEK_SET);\r
+ return(size_of_file);\r
+}
+
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// US_CheckParm() - checks to see if a string matches one of a set of\r
+// strings. The check is case insensitive. The routine returns the\r
+// index of the string that matched, or -1 if no matches were found\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+int\r
+US_CheckParm(char *parm,char **strings)\r
+{\r
+ char cp,cs,\r
+ *p,*s;\r
+ int i;\r
+\r
+ while (!isalpha(*parm)) // Skip non-alphas\r
+ parm++;\r
+\r
+ for (i = 0;*strings && **strings;i++)\r
+ {\r
+ for (s = *strings++,p = parm,cs = cp = 0;cs == cp;)\r
+ {\r
+ cs = *s++;\r
+ if (!cs)\r
+ return(i);\r
+ cp = *p++;\r
+\r
+ if (isupper(cs))\r
+ cs = tolower(cs);\r
+ if (isupper(cp))\r
+ cp = tolower(cp);\r
+ }\r
+ }\r
+ return(-1);\r
+}
+
+/*\r
+==========================\r
+=\r
+= Quit\r
+=\r
+==========================\r
+*/\r
+\r
+/*void Quit(char *error, ...)\r
+{\r
+ short exit_code=0;\r
+ unsigned finscreen;\r
+\r
+ va_list ap;\r
+\r
+ va_start(ap,error);\r
+\r
+#ifndef CATALOG\r
+ if (!error)\r
+ {\r
+ CA_SetAllPurge ();\r
+ CA_CacheGrChunk (PIRACY);\r
+ finscreen = (unsigned)grsegs[PIRACY];\r
+ }\r
+#endif\r
+\r
+ //ShutdownId ();\r
+\r
+ if (error && *error)\r
+ {\r
+ vprintf(error,ap);\r
+ exit_code = 1;\r
+ }\r
+#ifndef CATALOG\r
+ else\r
+ if (!NoWait)\r
+ {\r
+ movedata (finscreen,0,0xb800,0,4000);\r
+ bioskey (0);\r
+ }\r
+#endif\r
+\r
+ va_end(ap);\r
+\r
+#ifndef CATALOG\r
+ if (!error)\r
+ {\r
+ _argc = 2;\r
+ _argv[1] = "LAST.SHL";\r
+ _argv[2] = "ENDSCN.SCN";\r
+ _argv[3] = NULL;\r
+ if (execv("LOADSCN.EXE", _argv) == -1)\r
+ {\r
+ clrscr();\r
+ puts("Couldn't find executable LOADSCN.EXE.\n");\r
+ exit(1);\r
+ }\r
+ }\r
+#endif\r
+\r
+ exit(exit_code);\r
+}*/
--- /dev/null
+/* Project 16 Source Code~
+ * Copyright (C) 2012-2015 sparky4 & pngwen & andrius4669
+ *
+ * This file is part of Project 16.
+ *
+ * Project 16 is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Project 16 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>, or
+ * write to the Free Software Foundation, Inc., 51 Franklin Street,
+ * Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#if !defined(__LARGE__) && !defined(__COMPACT__) && !defined(__HUGE__)
+#error Invalid memory model for compiling project 16
+#endif
+
+#if !defined(__i86__) && defined(__i386__)
+#error i8088 only
+#endif
+
+#ifndef _LIBHEAD_H_
+#define _LIBHEAD_H_
+//#include <i86.h>
+#include <dos.h>
+#include <stdio.h>
+#include <conio.h> // just for wait
+#include <time.h> // just for wait
+#include <stdlib.h>
+#include <malloc.h>
+#include <ctype.h>
+//#include <unistd.h>\r
+#include <fcntl.h>\r
+//#include <sys/stat.h>
+#include <mem.h>
+#include "../../src/lib/types.h"
+
+/* Control codes for all keys on the keyboard */
+//here temperarly
+/*
+#define KEY_A (0x1E)
+#define KEY_B (0x30)
+#define KEY_C (0x2E)
+#define KEY_D (0x20)
+#define KEY_E (0x12)
+#define KEY_F (0x21)
+#define KEY_G (0x22)
+#define KEY_H (0x23)
+#define KEY_I (0x17)
+#define KEY_J (0x24)
+#define KEY_K (0x25)
+#define KEY_L (0x26)
+#define KEY_M (0x32)
+#define KEY_N (0x31)
+#define KEY_O (0x18)
+#define KEY_P (0x19)
+#define KEY_Q (0x10)
+#define KEY_R (0x13)
+#define KEY_S (0x1F)
+#define KEY_T (0x14)
+#define KEY_U (0x16)
+#define KEY_V (0x2F)
+#define KEY_W (0x11)
+#define KEY_X (0x2D)
+#define KEY_Y (0x15)
+#define KEY_Z (0x2C)
+#define KEY_1 (0x02)
+#define KEY_2 (0x03)
+#define KEY_3 (0x04)
+#define KEY_4 (0x05)
+#define KEY_5 (0x06)
+#define KEY_6 (0x07)
+#define KEY_7 (0x08)
+#define KEY_8 (0x09)
+#define KEY_9 (0x0A)
+#define KEY_0 (0x0B)
+#define KEY_DASH (0x0C) // -_
+#define KEY_EQUAL (0x0D) // =+
+#define KEY_LBRACKET (0x1A) // [{
+#define KEY_RBRACKET (0x1B) // ]}
+#define KEY_SEMICOLON (0x27) // ;:
+#define KEY_RQUOTE (0x28) // '"
+#define KEY_LQUOTE (0x29) // `~
+#define KEY_PERIOD (0x33) // .>
+#define KEY_COMMA (0x34) // ,<
+#define KEY_SLASH (0x35) // /?
+#define KEY_BACKSLASH (0x2B) // \|
+#define KEY_F1 (0x3B)
+#define KEY_F2 (0x3C)
+#define KEY_F3 (0x3D)
+#define KEY_F4 (0x3E)
+#define KEY_F5 (0x3F)
+#define KEY_F6 (0x40)
+#define KEY_F7 (0x41)
+#define KEY_F8 (0x42)
+#define KEY_F9 (0x43)
+#define KEY_F10 (0x44)
+#define KEY_ESC (0x01)
+#define KEY_BACKSPACE (0x0E)
+#define KEY_TAB (0x0F)
+#define KEY_ENTER (0x1C)
+#define KEY_CONTROL (0x1D)
+#define KEY_LSHIFT (0x2A)
+#define KEY_RSHIFT (0x36)
+#define KEY_PRTSC (0x37)
+#define KEY_ALT (0x38)
+#define KEY_SPACE (0x39)
+#define KEY_CAPSLOCK (0x3A)
+#define KEY_NUMLOCK (0x45)
+#define KEY_SCROLLLOCK (0x46)
+#define KEY_HOME (0x47)
+#define KEY_UP (0x48)
+#define KEY_PGUP (0x49)
+#define KEY_MINUS (0x4A)
+#define KEY_LEFT (0x4B)
+#define KEY_CENTER (0x4C)
+#define KEY_RIGHT (0x4D)
+#define KEY_PLUS (0x4E)
+#define KEY_END (0x4F)
+#define KEY_DOWN (0x50)
+#define KEY_PGDOWN (0x51)
+#define KEY_INS (0x52)
+#define KEY_DEL (0x53)
+
+#define KEY_LWIN (0x73)
+#define KEY_RWIN (0x74)
+#define KEY_MENU (0x75)
+*/
+
+static dword far* clockdw= (dword far*) 0x046C; /* 18.2hz clock */
+//static dword clockdw=0;
+extern int profilehandle,debughandle; //make it into game global
+
+#define nil ((void *)0)
+
+#define __DEBUG__
+
+//#define peekb(segm,ofs) (*(byte far*)MK_FP((segm),(ofs)))\r
+//#define peekw(segm,ofs) (*(word far*)MK_FP((segm),(ofs)))\r
+//#define pokeb(segm,ofs,value) (peekb((segm),(ofs)) = (byte)(value))\r
+//#define pokew(segm,ofs,value) (peekw((segm),(ofs)) = (word)(value))\r
+
+//typedef union REGPACK regs_t;
+typedef enum {false,true} boolean;
+//I hope this is correct!
+//__self
+typedef void _seg * memptr;
+//typedef void __based(__self) * memptr;
+//typedef __segment * memptr;
+typedef struct
+{\r
+ int old_mode; //old video mode before game!
+} global_game_variables_t;
+
+/* local function */\r
+void wait(clock_t wait);
+void* AllocateLargestFreeBlock(size_t* Size);
+size_t GetFreeSize(void);
+void far *AllocateLargestFarFreeBlock(size_t far* Size);
+size_t GetFarFreeSize(void);
+long int filesize(FILE *fp);
+int US_CheckParm(char *parm,char **strings);
+
+extern void CA_OpenDebug (void);\r
+extern void CA_CloseDebug (void);
+
+#endif/*_LIBHEAD_H_*/
--- /dev/null
+/* Catacomb Apocalypse Source Code
+ * Copyright (C) 1993-2014 Flat Rock Software
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+// NEWMM.C
+
+/*
+=============================================================================
+
+ ID software memory manager
+ --------------------------
+
+Primary coder: John Carmack
+
+RELIES ON
+---------
+Quit (char *error) function
+
+
+WORK TO DO
+----------
+MM_SizePtr to change the size of a given pointer
+
+Multiple purge levels utilized
+
+EMS / XMS unmanaged routines
+
+=============================================================================
+*/
+/*
+
+Open Watcom port by sparky4
+
+*/
+#include "16_mm.h"
+#pragma hdrstop
+
+#pragma warn -pro
+#pragma warn -use
+
+/*
+=============================================================================
+
+ GLOBAL VARIABLES
+
+=============================================================================
+*/
+
+void (* beforesort) (void);
+void (* aftersort) (void);
+void (* XMSaddr) (void); // far pointer to XMS driver
+
+/*
+=============================================================================
+
+ LOCAL VARIABLES
+
+=============================================================================
+*/
+
+static char *ParmStringsexmm[] = {"noems","noxms",""};
+
+/*
+======================
+=
+= MML_CheckForEMS
+=
+= Routine from p36 of Extending DOS
+=
+=======================
+*/
+
+boolean MML_CheckForEMS(void)
+{
+ boolean emmcfems;
+ static char emmname[] = "EMMXXXX0"; //fix by andrius4669
+// mov dx,OFFSET emmname
+ __asm {
+ //LEA DX, emmname //fix by andrius4669
+ mov dx,OFFSET emmname //fix by andrius4669
+ mov ax,0x3d00
+ int 0x21 // try to open EMMXXXX0 device
+ jc error
+
+ mov bx,ax
+ mov ax,0x4400
+
+ int 0x21 // get device info
+ jc error
+
+ and dx,0x80
+ jz error
+
+ mov ax,0x4407
+
+ int 0x21 // get status
+ jc error
+ or al,al
+ jz error
+
+ mov ah,0x3e
+ int 0x21 // close handle
+ jc error
+ //
+ // EMS is good
+ //
+ mov emmcfems,1
+ jmp End
+ error:
+ //
+ // EMS is bad
+ //
+ mov emmcfems,0
+ End:
+ }
+ return(emmcfems);
+}
+
+
+/*
+======================
+=
+= MML_SetupEMS
+=
+=======================
+*/
+
+byte MML_SetupEMS(mminfo_t *mm)
+{
+ byte str[160];
+ byte err;
+ boolean errorflag=false;
+
+ unsigned int EMSVer = 0;
+ //byte EMS_status;
+ unsigned totalEMSpages,freeEMSpages,EMSpageframe,EMSpagesmapped,EMShandle;
+ totalEMSpages = freeEMSpages = EMSpageframe = EMSpagesmapped = 0;
+
+ __asm
+ {
+ mov ah,EMS_STATUS
+ int EMS_INT // make sure EMS hardware is present
+ or ah,ah
+ //mov [EMS_status],ah
+ jnz error
+
+ mov ah,EMS_VERSION
+ int EMS_INT
+ or ah,ah
+ jnz error
+ mov [EMSVer],ax // set EMSVer
+ cmp al,0x32 // only work on ems 3.2 or greater
+ jb error
+
+ mov ah,EMS_GETFRAME
+ int EMS_INT // find the page frame address
+ or ah,ah
+ jnz error
+ mov [EMSpageframe],bx
+
+ mov ah,EMS_GETPAGES
+ int EMS_INT // find out how much EMS is there
+ or ah,ah
+ jnz error
+ mov [totalEMSpages],dx
+ mov [freeEMSpages],bx
+ or bx,bx
+ jz noEMS // no EMS at all to allocate
+ //EXPAND DONG!!!!
+ cmp [EMSVer],0x40
+ jb low
+ cmp bx,[freeEMSpages]
+ jle getpages
+ mov bx,[freeEMSpages]
+ jmp getpages
+
+low:
+ cmp bx,4
+ jle getpages // there is only 1,2,3,or 4 pages
+ mov bx,4 // we can't use more than 4 pages
+
+getpages:
+ mov [EMSpagesmapped],bx
+ mov ah,EMS_ALLOCPAGES // allocate up to 64k of EMS
+ int EMS_INT
+ or ah,ah
+ jnz error
+ mov [EMShandle],dx
+ jmp End
+error:
+ mov err,ah
+ mov errorflag,1
+ jmp End
+noEMS:
+End:
+ }
+ if(errorflag==true)
+ {
+ //err = CPURegs.h.ah;
+ strcpy(str,"MM_SetupEMS: EMS error ");
+ //itoa(err,str2,16);
+ MM_EMSerr(&str, err);
+ printf("%s\n",str);
+ return err;
+ }
+ mm->totalEMSpages=totalEMSpages;
+ mm->freeEMSpages=freeEMSpages;
+ mm->EMSpageframe=EMSpageframe;
+ mm->EMSpagesmapped=EMSpagesmapped;
+ mm->EMShandle=EMShandle;
+ mm->EMSVer=EMSVer;
+ return 0;
+}
+
+
+/*
+======================
+=
+= MML_ShutdownEMS
+=
+=======================
+*/
+
+void MML_ShutdownEMS(mminfo_t *mm)
+{
+ boolean errorflag=false;
+ unsigned EMShandle=mm->EMShandle;
+
+ if(!EMShandle)
+ return;
+ __asm
+ {
+ mov ah,EMS_FREEPAGES
+ mov dx,[EMShandle]
+ int EMS_INT
+ or ah,ah
+ jz ok
+ mov errorflag,1
+ ok:
+ }
+ if(errorflag==true) printf("MML_ShutdownEMS: Error freeing EMS!\n"); //++++ add something
+}
+
+/*
+====================
+=
+= MM_MapEMS
+=
+= Maps the 64k of EMS used by memory manager into the page frame
+= for general use. This only needs to be called if you are keeping
+= other things in EMS.
+=
+====================
+*/
+
+byte MM_MapEMS(mminfo_t *mm, mminfotype *mmi)
+{
+ byte str[160];
+ unsigned EMShandle;
+ byte err;
+ boolean errorflag=false;
+ int i;
+ EMShandle=mm->EMShandle;
+
+ for (i=0;i<4/*MAPPAGES*/;i++)
+ {
+ __asm
+ {
+ mov ah,EMS_MAPPAGE
+ mov bx,[i] // logical page
+ mov al,bl // physical page
+ mov dx,[EMShandle] // handle
+ int EMS_INT
+ or ah,ah
+ jnz error
+ jmp End
+ error:
+ mov err,ah
+ mov errorflag,1
+ End:
+ }
+ if(errorflag==true)
+ {
+ //err = CPURegs.h.ah;
+ strcpy(str,"MM_MapEMS: EMS error ");
+ //itoa(err,str2,16);
+ MM_EMSerr(str, err);
+ printf("%s\n",str);
+ //printf("FACK! %x\n", err);
+ return err;
+ }
+ }
+ mmi->EMSmem = (i)*0x4000lu;
+ return 0;
+}
+
+byte MM_MapXEMS(mminfo_t *mm, mminfotype *mmi)
+{
+//SUB EMS.MapXPages (PhysicalStart, LogicalStart, NumPages, Handle)
+
+ //Maps up to 4 logical EMS pages to physical pages in the page frame, where:
+ //PhysicalStart = Physical page first logical page is mapped to
+ //LogicalStart = First logical page to map
+ //NumPages = Number of pages to map (1 to 4)
+ //Handle = EMS handle logical pages are allocated to
+
+ /*//Create a buffer containing the page information
+// FOR x = 0 TO NumPages - 1
+// MapInfo$ = MapInfo$ + MKI$(LogicalStart + x) + MKI$(PhysicalStart + x)
+// NEXT*/
+
+// Regs.ax = 0x5000 //Map the pages in the buffer
+// Regs.cx = NumPages //to the pageframe
+// Regs.dx = Handle
+// Regs.ds = VARSEG(MapInfo$)
+// Regs.si = SADD(MapInfo$)
+// InterruptX 0x67, Regs, Regs
+// EMS.Error = (Regs.ax AND 0xFF00&) \ 0x100 //Store the status code
+
+//END SUB
+ byte str[160];
+ byte err;
+ word EMShandle;
+ boolean errorflag=false;
+ int i;
+ EMShandle=mm->EMShandle;
+
+ if(mm->EMSVer<0x40)
+ return 5;
+
+ for (i=0;i<MAPPAGES;i++)
+ {
+ __asm
+ {
+ mov ah,EMS_MAPXPAGE
+ mov cx,[i] // logical page
+ mov al,bl // physical page
+ mov dx,[EMShandle] // handle
+ int EMS_INT
+ or ah,ah
+ jnz error
+ jmp End
+ error:
+ mov err,ah
+ mov errorflag,1
+ End:
+ }
+ if(errorflag==true)
+ {
+ //err = CPURegs.h.ah;
+ //strcpy(str,"MM_MapXEMS: EMS error 0x");
+ strcpy(str,"MM_MapXEMS: EMS error ");
+ //itoa(err,str2,16);
+ MM_EMSerr(&str, err);
+ printf("%s\n",str);
+ //printf("%s%x\n",str, err);
+ //printf("FACK! %x\n", err);
+ return err;
+ }
+ }
+ mmi->EMSmem = (i)*0x4000lu;
+ return 0;
+}
+
+//==========================================================================
+
+/*
+======================
+=
+= MML_CheckForXMS
+=
+= Check for XMM driver
+=
+=======================
+*/
+
+boolean MML_CheckForXMS(mminfo_t *mm)
+{
+ boolean errorflag=false;
+ mm->numUMBs = 0;
+
+ __asm
+ {
+ mov ax,0x4300
+ int 0x2f // query status of installed diver
+ cmp al,0x80
+ je good
+ mov errorflag,1
+ good:
+ }
+ if(errorflag==true) return false;
+ else return true;
+}
+
+
+/*
+======================
+=
+= MML_SetupXMS
+=
+= Try to allocate all upper memory block
+=
+=======================
+*/
+
+void MML_SetupXMS(mminfo_t *mm, mminfotype *mmi)
+{
+ unsigned base,size;
+
+getmemory:
+ __asm
+ {
+ mov ax,0x4310
+ int 0x2f
+ mov [WORD PTR XMSaddr],bx
+ mov [WORD PTR XMSaddr+2],es // function pointer to XMS driver
+
+ mov ah,XMS_ALLOCUMB
+ mov dx,0xffff // try for largest block possible
+ //mov ax,dx // Set available Kbytes.
+ call [DWORD PTR XMSaddr]
+ or ax,ax
+ jnz gotone
+
+ cmp bl,0xb0 // error: smaller UMB is available
+ jne done;
+
+ mov ah,XMS_ALLOCUMB
+ call [DWORD PTR XMSaddr] // DX holds largest available UMB
+ or ax,ax
+ jz done // another error...
+
+gotone:
+ mov [base],bx
+ mov [size],dx
+done:
+ }
+ printf("base=%u ", base); printf("size=%u\n", size);
+ MML_UseSpace(base,size, mm);
+ mmi->XMSmem += size*16;
+ mm->UMBbase[mm->numUMBs] = base;
+ mm->numUMBs++;
+ if(mm->numUMBs < MAXUMBS)
+ goto getmemory;
+}
+
+
+/*
+======================
+=
+= MML_ShutdownXMS
+=
+======================
+*/
+
+void MML_ShutdownXMS(mminfo_t *mm)
+{
+ int i;
+ unsigned base;
+
+ for (i=0;i<mm->numUMBs;i++)
+ {
+ base = mm->UMBbase[i];
+ __asm
+ {
+ mov ah,XMS_FREEUMB
+ mov dx,[base]
+ call [DWORD PTR XMSaddr]
+ }
+ }
+}
+
+//==========================================================================
+
+/*
+======================
+=
+= MML_UseSpace
+=
+= Marks a range of paragraphs as usable by the memory manager
+= This is used to mark space for the near heap, far heap, ems page frame,
+= and upper memory blocks
+=
+======================
+*/
+
+void MML_UseSpace(/*d*/word segstart, dword seglength, mminfo_t *mm)
+{
+ mmblocktype huge *scan,huge *last;
+ word segm;
+ dword oldend;
+ dword extra;
+
+ scan = last = mm->mmhead;
+ mm->mmrover = mm->mmhead; // reset rover to start of memory
+
+//
+// search for the block that contains the range of segments
+//
+ while(scan->start+scan->length < segstart)
+ {
+ last = scan;
+ scan = scan->next;
+ }
+
+ //find out how many blocks it spans!
+ if(seglength>0xffffu)
+ {
+// segm=seglength/0x4000u;
+ segm=seglength/0xffffu;
+ }
+ else segm=1;
+
+ //++++emsver stuff!
+ if(segm>1/*extra>0xfffflu*/)
+ {
+ /*__asm
+ {
+ push ds
+ mov ax,ds
+ inc ax
+ mov ds,ax
+ }*/
+
+
+//MML_UseSpace(?segstart?, ?length?, mm);
+
+ /*__asm
+ {
+ pop ds
+ }*/
+ //printf("MML_UseSpace: Segment spans two blocks!\n");
+ }
+
+//
+// take the given range out of the block
+//
+ oldend = scan->start + scan->length;
+ extra = oldend - (segstart+seglength);
+/*
+printf("segm=%u ", segm);
+printf("ex=%lu ", extra);
+printf("start+seglen=%lu ", segstart+seglength);
+printf("len=%u ", scan->length);
+printf("segsta=%x ", segstart);
+printf("seglen=%lu\n", seglength);
+*/
+//segu:
+//++++todo: linked list of segment!
+//printf("segm=%lu\n", segm);
+ if(segstart == scan->start)
+ {
+ last->next = scan->next; // unlink block
+ MM_FreeBlock(scan, mm);
+ scan = last;
+ }
+ else
+ scan->length = segstart-scan->start; // shorten block
+
+// segm--;
+
+ if(extra > 0)
+ {
+ MM_GetNewBlock(mm);
+ mm->mmnew->next = scan->next;
+ scan->next = mm->mmnew;
+ mm->mmnew->start = segstart+seglength;
+ mm->mmnew->length = extra;
+ mm->mmnew->attributes = LOCKBIT;
+ }//else if(segm>0) goto segu;
+
+}
+
+//==========================================================================
+
+/*
+====================
+=
+= MML_ClearBlock
+=
+= We are out of blocks, so free a purgable block
+=
+====================
+*/
+
+void MML_ClearBlock(mminfo_t *mm)
+{
+ mmblocktype huge *scan,huge *last;
+
+ scan = mm->mmhead->next;
+
+ while(scan)
+ {
+ if(!(scan->attributes&LOCKBIT) && (scan->attributes&PURGEBITS))
+ {
+ MM_FreePtr(scan->useptr, mm);
+ return;
+ }
+ scan = scan->next;
+ }
+
+ printf("MM_ClearBlock: No purgable blocks!\n");
+}
+
+
+//==========================================================================
+
+/*
+===================
+=
+= MM_Startup
+=
+= Grabs all space from turbo with malloc/farmalloc
+= Allocates bufferseg misc buffer
+=
+===================
+*/
+
+void MM_Startup(mminfo_t *mm, mminfotype *mmi)
+{
+ int i;
+ dword length,seglength;
+ //dword length; word seglength;
+ void huge *start;
+ word segstart;//,endfree;
+
+ if(mm->mmstarted)
+ MM_Shutdown(mm);
+
+ mm->mmstarted = true;
+ mm->bombonerror = true;
+
+//
+// set up the linked list (everything in the free list;
+//
+ //printf(" linked list making!\n");
+ mm->mmhead = NULL;
+ mm->mmfree = &(mm->mmblocks[0]);
+ for(i=0;i<MAXBLOCKS-1;i++)
+ {
+ mm->mmblocks[i].next = &(mm->mmblocks[i+1]);
+ }
+ mm->mmblocks[i].next = NULL;
+
+//
+// locked block of all memory until we punch out free space
+//
+ //printf(" newblock making!\n");
+ MM_GetNewBlock(mm);
+ mm->mmhead = mm->mmnew; // this will allways be the first node
+ mm->mmnew->start = 0;
+ mm->mmnew->length = 0xffff;
+ mm->mmnew->attributes = LOCKBIT;
+ mm->mmnew->next = NULL;
+ mm->mmrover = mm->mmhead;
+
+//
+// get all available near conventional memory segments
+//
+//---- length=coreleft();
+ printf(" nearheap making!\n");
+ _heapgrow();
+ length=_memmax();//(dword)GetFreeSize();
+ start = (void huge *)(mm->nearheap = malloc(length));
+ length -= 16-(FP_OFF(start)&15);
+ length -= SAVENEARHEAP;
+ seglength = length / 16; // now in paragraphs
+ segstart = FP_SEG(start)+(FP_OFF(start)+15)/16;
+ MML_UseSpace(segstart,seglength, mm);
+ mmi->nearheap = length;
+ printf("start=%FP segstart=%X seglen=%lu len=%lu\n", start, segstart, seglength, length);
+ printf(" near heap ok!\n");
+
+//
+// get all available far conventional memory segments
+//
+//---- length=farcoreleft();
+ printf(" farheap making!\n");
+ _fheapgrow();
+ length=(dword)GetFarFreeSize();//0xffffUL*4UL;
+ //start = mm->farheap = halloc(length, 1);
+ start = mm->farheap = _fmalloc(length);
+ length -= 16-(FP_OFF(start)&15);
+ length -= SAVEFARHEAP;
+ seglength = length / 16; // now in paragraphs
+ segstart = FP_SEG(start)+(FP_OFF(start)+15)/16;
+ MML_UseSpace(segstart,seglength, mm);
+ mmi->farheap = length;
+ printf("start=%FP segstart=%X seglen=%lu len=%lu\n", start, segstart, seglength, length);
+ printf(" far heap ok!\n");
+
+ mmi->mainmem = mmi->nearheap + mmi->farheap;
+
+ getch();
+
+//
+// detect EMS and allocate up to 64K at page frame
+//
+printf(" EMS1\n");
+printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+ mmi->EMSmem = 0;
+ for(i = 1;i < __argc;i++)
+ {
+ if(US_CheckParm(__argv[i],ParmStringsexmm) == 0)
+ goto emsskip; // param NOEMS
+ }
+printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+ if(MML_CheckForEMS())
+ {
+printf(" EMS2\n");
+printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+ MML_SetupEMS(mm); // allocate space
+printf(" EMS3\n");
+printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+ //TODO: EMS4! AND EMS 3.2 MASSIVE DATA HANDLMENT!
+ MML_UseSpace(mm->EMSpageframe,(MAPPAGES)*0x4000lu, mm);
+printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+printf(" EMS4\n");
+ //if(mm->EMSVer<0x40)
+ MM_MapEMS(mm, mmi); // map in used pages
+ //else
+ //MM_MapXEMS(mm, mmi); // map in used pages
+ }
+
+//
+// detect XMS and get upper memory blocks
+//
+emsskip:
+ mmi->XMSmem = 0;
+ for(i = 1;i < __argc;i++)
+ {
+ if(US_CheckParm(__argv[i],ParmStringsexmm) == 0)
+ goto xmsskip; // param NOXMS
+ }
+printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+ if(MML_CheckForXMS(mm))
+ {
+printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+printf(" XMS!\n");
+ MML_SetupXMS(mm, mmi); // allocate as many UMBs as possible
+ }
+
+//
+// allocate the misc buffer
+//
+xmsskip:
+ mm->mmrover = mm->mmhead; // start looking for space after low block
+
+ MM_GetPtr(&(mm->bufferseg),BUFFERSIZE, mm, mmi);
+}
+
+//==========================================================================
+
+/*
+====================
+=
+= MM_Shutdown
+=
+= Frees all conventional, EMS, and XMS allocated
+=
+====================
+*/
+
+void MM_Shutdown(mminfo_t *mm)
+{
+ if(!(mm->mmstarted))
+ return;
+
+ _ffree(mm->farheap); printf(" far freed\n");
+ free(mm->nearheap); printf(" near freed\n");
+ if(MML_CheckForEMS()){ MML_ShutdownEMS(mm); printf(" EMS freed\n"); }
+ if(MML_CheckForXMS(mm)){ MML_ShutdownXMS(mm); printf(" XMS freed\n"); }
+}
+
+//==========================================================================
+
+/*
+====================
+=
+= MM_GetPtr
+=
+= Allocates an unlocked, unpurgable block
+=
+====================
+*/
+
+void MM_GetPtr(memptr *baseptr,dword size, mminfo_t *mm, mminfotype *mmi)
+{
+ mmblocktype huge *scan,huge *lastscan,huge *endscan,huge *purge,huge *next;
+ int search;
+ unsigned needed,startseg;
+
+ needed = (size+15)/16; // convert size from bytes to paragraphs
+
+ MM_GetNewBlock(mm); // fill in start and next after a spot is found
+ mm->mmnew->length = needed;
+ mm->mmnew->useptr = baseptr;
+ mm->mmnew->attributes = BASEATTRIBUTES;
+
+ for(search = 0; search<3; search++)
+ {
+ //
+ // first search: try to allocate right after the rover, then on up
+ // second search: search from the head pointer up to the rover
+ // third search: compress memory, then scan from start
+ if(search == 1 && mm->mmrover == mm->mmhead)
+ search++;
+
+ switch(search)
+ {
+ case 0:
+ lastscan = mm->mmrover;
+ scan = mm->mmrover->next;
+ endscan = NULL;
+ break;
+ case 1:
+ lastscan = mm->mmhead;
+ scan = mm->mmhead->next;
+ endscan = mm->mmrover;
+ break;
+ case 2:
+ MM_SortMem(mm);
+ lastscan = mm->mmhead;
+ scan = mm->mmhead->next;
+ endscan = NULL;
+ break;
+ }
+
+ startseg = lastscan->start + lastscan->length;
+
+ while(scan != endscan)
+ {
+ if(scan->start - startseg >= needed)
+ {
+ //
+ // got enough space between the end of lastscan and
+ // the start of scan, so throw out anything in the middle
+ // and allocate the new block
+ //
+ purge = lastscan->next;
+ lastscan->next = mm->mmnew;
+ mm->mmnew->start = *(unsigned *)baseptr = startseg;
+ mm->mmnew->next = scan;
+ while(purge != scan)
+ { // free the purgable block
+ next = purge->next;
+ MM_FreeBlock(purge, mm);
+ purge = next; // purge another if not at scan
+ }
+ mm->mmrover = mm->mmnew;
+ return; // good allocation!
+ }
+
+ //
+ // if this block is purge level zero or locked, skip past it
+ //
+ if((scan->attributes & LOCKBIT)
+ || !(scan->attributes & PURGEBITS) )
+ {
+ lastscan = scan;
+ startseg = lastscan->start + lastscan->length;
+ }
+
+
+ scan=scan->next; // look at next line
+ }
+ }
+
+ if (mm->bombonerror)
+ {
+ printf(OUT_OF_MEM_MSG,(size-mmi->nearheap));
+ exit(-5);
+ }
+ else
+ mm->mmerror = true;
+}
+
+//==========================================================================
+
+/*
+====================
+=
+= MM_FreePtr
+=
+= Allocates an unlocked, unpurgable block
+=
+====================
+*/
+
+void MM_FreePtr(memptr *baseptr, mminfo_t *mm)
+{
+ mmblocktype huge *scan,huge *last;
+
+ last = mm->mmhead;
+ scan = last->next;
+
+ if(baseptr == mm->mmrover->useptr) // removed the last allocated block
+ mm->mmrover = mm->mmhead;
+
+ while(scan->useptr != baseptr && scan)
+ {
+ last = scan;
+ scan = scan->next;
+ }
+
+ if(!scan)
+ {
+ printf("MM_FreePtr: Block not found!\n");
+ return;
+ }
+
+ last->next = scan->next;
+
+ MM_FreeBlock(scan, mm);
+}
+//==========================================================================
+
+/*
+=====================
+=
+= MM_SetPurge
+=
+= Sets the purge level for a block (locked blocks cannot be made purgable)
+=
+=====================
+*/
+
+void MM_SetPurge(memptr *baseptr, int purge, mminfo_t *mm)
+{
+ mmblocktype huge *start;
+
+ start = mm->mmrover;
+
+ do
+ {
+ if(mm->mmrover->useptr == baseptr)
+ break;
+
+ mm->mmrover = mm->mmrover->next;
+
+ if(!mm->mmrover)
+ mm->mmrover = mm->mmhead;
+ else if(mm->mmrover == start)
+ {
+ printf("MM_SetPurge: Block not found!");
+ return;
+ }
+
+ } while(1);
+
+ mm->mmrover->attributes &= ~PURGEBITS;
+ mm->mmrover->attributes |= purge;
+}
+
+//==========================================================================
+
+/*
+=====================
+=
+= MM_SetLock
+=
+= Locks / unlocks the block
+=
+=====================
+*/
+
+void MM_SetLock(memptr *baseptr, boolean locked, mminfo_t *mm)
+{
+ mmblocktype huge *start;
+
+ start = mm->mmrover;
+
+ do
+ {
+ if(mm->mmrover->useptr == baseptr)
+ break;
+
+ mm->mmrover = mm->mmrover->next;
+
+ if(!mm->mmrover)
+ mm->mmrover = mm->mmhead;
+ else if(mm->mmrover == start)
+ {
+ printf("MM_SetLock: Block not found!");
+ return;
+ }
+
+ } while(1);
+
+ mm->mmrover->attributes &= ~LOCKBIT;
+ mm->mmrover->attributes |= locked*LOCKBIT;
+}
+
+//==========================================================================
+
+/*
+=====================
+=
+= MM_SortMem
+=
+= Throws out all purgable stuff and compresses movable blocks
+=
+=====================
+*/
+
+void MM_SortMem(mminfo_t *mm)
+{
+ mmblocktype huge *scan,huge *last,huge *next;
+ unsigned start,length,source,dest,oldborder;
+ int playing;
+
+ //
+ // lock down a currently playing sound
+ //
+/*++++ playing = SD_SoundPlaying ();
+ if(playing)
+ {
+ switch (SoundMode)
+ {
+ case sdm_PC:
+ playing += STARTPCSOUNDS;
+ break;
+ case sdm_AdLib:
+ playing += STARTADLIBSOUNDS;
+ break;
+ }
+ MM_SetLock(&(memptr)audiosegs[playing],true);
+ }
+
+
+ SD_StopSound();*/
+// oldborder = bordercolor;
+// VW_ColorBorder (15);
+
+ if(beforesort)
+ beforesort();
+
+ scan = mm->mmhead;
+
+ last = NULL; // shut up compiler warning
+
+ while(scan)
+ {
+ if(scan->attributes & LOCKBIT)
+ {
+ //
+ // block is locked, so try to pile later blocks right after it
+ //
+ start = scan->start + scan->length;
+ }
+ else
+ {
+ if(scan->attributes & PURGEBITS)
+ {
+ //
+ // throw out the purgable block
+ //
+ next = scan->next;
+ MM_FreeBlock(scan, mm);
+ last->next = next;
+ scan = next;
+ continue;
+ }
+ else
+ {
+ //
+ // push the non purgable block on top of the last moved block
+ //
+ if(scan->start != start)
+ {
+ length = scan->length;
+ source = scan->start;
+ dest = start;
+ while(length > 0xf00)
+ {
+ movedata(source,0,dest,0,0xf00*16);
+ length -= 0xf00;
+ source += 0xf00;
+ dest += 0xf00;
+ }
+ movedata(source,0,dest,0,length*16);
+
+ scan->start = start;
+ *(unsigned *)scan->useptr = start;
+ }
+ start = scan->start + scan->length;
+ }
+ }
+
+ last = scan;
+ scan = scan->next; // go to next block
+ }
+
+ mm->mmrover = mm->mmhead;
+
+ if(aftersort)
+ aftersort();
+
+// VW_ColorBorder (oldborder);
+
+/*++++ if(playing)
+ MM_SetLock(&(memptr)audiosegs[playing],false);*/
+}
+
+
+//==========================================================================
+
+//****#if 0
+/*
+=====================
+=
+= MM_ShowMemory
+=
+=====================
+*/
+
+void MM_ShowMemory(/*page_t *page, */mminfo_t *mm)
+{
+ mmblocktype huge *scan;
+ word color,temp;
+ long end,owner;
+ word chx,chy;
+ byte scratch[160],str[16];
+
+//**** VW_SetDefaultColors();
+//**** VW_SetLineWidth(40);
+//++++mh temp = bufferofs;
+//++++mh bufferofs = 0;
+//**** VW_SetScreen (0,0);
+
+ scan = mm->mmhead;
+
+ end = -1;
+
+CA_OpenDebug ();
+
+ chx=0;
+ chy=0;
+
+ while(scan)
+ {
+ if(scan->attributes & PURGEBITS)
+ color = 5; // dark purple = purgable
+ else
+ color = 9; // medium blue = non purgable
+ if(scan->attributes & LOCKBIT)
+ color = 12; // red = locked
+ if(scan->start<=end)
+ {
+ //printf(");
+ write(debughandle,"\nMM_ShowMemory: Memory block order currupted!\n",strlen("\nMM_ShowMemory: Memory block order currupted!\n"));
+ //modexprint(&page, chx, chy, 1, 0, 24, "\nMM_ShowMemory: Memory block order currupted!\n");
+ return;
+ }
+ end = scan->start+scan->length-1;
+ chy = scan->start/320;
+ chx = scan->start%320;
+ //modexhlin(page, scan->start, (unsigned)end, chy, color);
+ //for(chx=scan->start;chx+4>=(word)end;chx+=4)
+ //{
+//++++ modexClearRegion(page, chx, chy, 4, 4, color);
+ //}
+
+//++++ VW_Hlin(scan->start,(unsigned)end,0,color);
+
+//++++ VW_Plot(scan->start,0,15);
+//++++ modexClearRegion(page, chx, chy, 4, 4, 15);
+ if(scan->next->start > end+1)
+//++++ VW_Hlin(end+1,scan->next->start,0,0); // black = free
+ //for(chx=scan->next->start;chx+4>=(word)end+1;chx+=4)
+ //{
+//++++ chx+=scan->next->start;
+//++++ modexClearRegion(page, chx, chy, 4, 4, 2);
+ //}
+ //modexhlin(page, end+1,scan->next->start, chy, 0);
+
+/*
+ end = scan->length-1;
+ y = scan->start/320;
+ x = scan->start%320;
+ VW_Hlin(x,x+end,y,color);
+ VW_Plot(x,y,15);
+ if (scan->next && scan->next->start > end+1)
+ VW_Hlin(x+end+1,x+(scan->next->start-scan->start),y,0); // black = free
+*/
+
+//****#if 0
+printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+strcpy(scratch,"Seg:");
+ultoa (scan->start,str,16);
+strcat (scratch,str);
+strcat (scratch,"\tSize:");
+ultoa ((dword)scan->length,str,10);
+strcat (scratch,str);
+strcat (scratch,"\tOwner:0x");
+owner = (unsigned)scan->useptr;
+ultoa (owner,str,16);
+strcat (scratch,str);
+strcat (scratch,"\n");
+write(debughandle,scratch,strlen(scratch));
+//modexprint(page, chx, chy, 1, 0, 24, &scratch);
+//++++chy+=4;
+//fprintf(stdout, "%s", scratch);
+//****#endif
+
+ scan = scan->next;
+ }
+
+CA_CloseDebug ();
+
+//++++mh IN_Ack();
+//**** VW_SetLineWidth(64);
+//++++mh bufferofs = temp;
+}
+//****#endif
+
+//==========================================================================
+
+/*
+=====================
+=
+= MM_DumpData
+=
+=====================
+*/
+
+void MM_DumpData(mminfo_t *mm)
+{
+ mmblocktype far *scan,far *best;
+ long lowest,oldlowest;
+ word owner;
+ byte lock,purge;
+ FILE *dumpfile;
+
+
+ //++++free(mm->nearheap);
+ dumpfile = fopen ("mmdump.16","w");
+ if (!dumpfile){
+ printf("MM_DumpData: Couldn't open MMDUMP.16!\n");
+ return;
+ }
+
+ lowest = -1;
+ do
+ {
+ oldlowest = lowest;
+ lowest = 0xffff;
+
+ scan = mm->mmhead;
+ while (scan)
+ {
+ owner = (word)scan->useptr;
+
+ if (owner && owner<lowest && owner > oldlowest)
+ {
+ best = scan;
+ lowest = owner;
+ }
+
+ scan = scan->next;
+ }
+
+ if (lowest != 0xffff)
+ {
+ if (best->attributes & PURGEBITS)
+ purge = 'P';
+ else
+ purge = '-';
+ if (best->attributes & LOCKBIT)
+ lock = 'L';
+ else
+ lock = '-';
+ fprintf (dumpfile,"0x%p (%c%c) = %u\n"
+ ,(word)lowest,lock,purge,best->length);
+ }
+
+ } while (lowest != 0xffff);
+
+ fclose(dumpfile);
+ printf("MMDUMP.16 created.\n");
+}
+
+//==========================================================================
+
+
+/*
+======================
+=
+= MM_UnusedMemory
+=
+= Returns the total free space without purging
+=
+======================
+*/
+
+dword MM_UnusedMemory(mminfo_t *mm)
+{
+ dword free;
+ mmblocktype huge *scan;
+
+ free = 0;
+ scan = mm->mmhead;
+
+ while(scan->next)
+ {
+ free += scan->next->start - (scan->start + scan->length);
+ scan = scan->next;
+ }
+
+// return free*16l;
+ return free;
+}
+
+//==========================================================================
+
+
+/*
+======================
+=
+= MM_TotalFree
+=
+= Returns the total free space with purging
+=
+======================
+*/
+
+dword MM_TotalFree(mminfo_t *mm)
+{
+ dword free;
+ mmblocktype huge *scan;
+
+ free = 0;
+ scan = mm->mmhead;
+
+ while(scan->next)
+ {
+ if((scan->attributes&PURGEBITS) && !(scan->attributes&LOCKBIT))
+ free += scan->length;
+ free += scan->next->start - (scan->start + scan->length);
+ scan = scan->next;
+ }
+
+// return free*16l;
+ return free;
+}
+
+//==========================================================================
+
+/*
+=====================
+=
+= MM_Report
+=
+=====================
+*/
+
+void MM_Report(/*page_t *page, */mminfo_t *mm, mminfotype *mmi)
+{
+ if(MML_CheckForEMS())
+ {
+ printf("EMM v%x.%x available\n", mm->EMSVer>>4,mm->EMSVer&0x0F);
+ printf("totalEMSpages=%u\n", mm->totalEMSpages);
+ printf("freeEMSpages=%u\n", mm->freeEMSpages);
+ printf("EMSpageframe=%x\n", mm->EMSpageframe);
+ }
+ if(MML_CheckForXMS(mm)) printf("XMSaddr=%X\n", *XMSaddr);
+ printf("near=%lu\n", mmi->nearheap);
+ printf("far=%lu\n", mmi->farheap);
+ printf("EMSmem=%lu\n", mmi->EMSmem);
+ printf("XMSmem=%lu\n", mmi->XMSmem);
+ printf("mainmem=%lu\n", mmi->mainmem);
+ printf("UnusedMemory=%lu\n", MM_UnusedMemory(mm));
+ printf("TotalFree=%lu\n", MM_TotalFree(mm));
+ //mmi->nearheap+mmi->farheap+
+ printf("TotalUsed=%lu\n", mmi->mainmem+mmi->EMSmem+mmi->XMSmem);//+);
+// printf("\n");
+// printf("UnusedMemory=%lu kb\n", MM_UnusedMemory()/10248);
+// printf("TotalFree=%lu kb\n", MM_TotalFree()/10248);
+}
+
+//==========================================================================
+
+/*
+=====================
+=
+= MM_EMSerr
+=
+=====================
+*/
+
+void MM_EMSerr(byte *stri, byte err)
+{
+ //Returns a text string describing the error code in EMS.Error.
+ switch(err)
+ {
+ case 0x0:
+ strcat(stri, "successful");
+ break;
+ case 0x80:
+ strcat(stri, "internal error");
+ break;
+ case 0x81:
+ strcat(stri, "hardware malfunction");
+ break;
+ case 0x82:
+ strcat(stri, "busy .. retry later");
+ break;
+ case 0x83:
+ strcat(stri, "invalid handle");
+ break;
+ case 0x84:
+ strcat(stri, "undefined function requested by application");
+ break;
+ case 0x85:
+ strcat(stri, "no more handles available");
+ break;
+ case 0x86:
+ strcat(stri, "error in save or restore of mapping context");
+ break;
+ case 0x87:
+ strcat(stri, "insufficient memory pages in system");
+ break;
+ case 0x88:
+ strcat(stri, "insufficient memory pages available");
+ break;
+ case 0x89:
+ strcat(stri, "zero pages requested");
+ break;
+ case 0x8A:
+ strcat(stri, "invalid logical page number encountered");
+ break;
+ case 0x8B:
+ strcat(stri, "invalid physical page number encountered");
+ break;
+ case 0x8C:
+ strcat(stri, "page-mapping hardware state save area is full");
+ break;
+ case 0x8D:
+ strcat(stri, "save of mapping context failed");
+ break;
+ case 0x8E:
+ strcat(stri, "restore of mapping context failed");
+ break;
+ case 0x8F:
+ strcat(stri, "undefined subfunction");
+ break;
+ case 0x90:
+ strcat(stri, "undefined attribute type");
+ break;
+ case 0x91:
+ strcat(stri, "feature not supported");
+ break;
+ case 0x92:
+ strcat(stri, "successful, but a portion of the source region has been overwritten");
+ break;
+ case 0x93:
+ strcat(stri, "length of source or destination region exceeds length of region allocated to either source or destination handle");
+ break;
+ case 0x94:
+ strcat(stri, "conventional and expanded memory regions overlap");
+ break;
+ case 0x95:
+ strcat(stri, "offset within logical page exceeds size of logical page");
+ break;
+ case 0x96:
+ strcat(stri, "region length exceeds 1 MB");
+ break;
+ case 0x97:
+ strcat(stri, "source and destination EMS regions have same handle and overlap");
+ break;
+ case 0x98:
+ strcat(stri, "memory source or destination type undefined");
+ break;
+ case 0x9A:
+ strcat(stri, "specified alternate map register or DMA register set not supported");
+ break;
+ case 0x9B:
+ strcat(stri, "all alternate map register or DMA register sets currently allocated");
+ break;
+ case 0x9C:
+ strcat(stri, "alternate map register or DMA register sets not supported");
+ break;
+ case 0x9D:
+ strcat(stri, "undefined or unallocated alternate map register or DMA register set");
+ break;
+ case 0x9E:
+ strcat(stri, "dedicated DMA channels not supported");
+ break;
+ case 0x9F:
+ strcat(stri, "specified dedicated DMA channel not supported");
+ break;
+ case 0xA0:
+ strcat(stri, "no such handle name");
+ break;
+ case 0xA1:
+ strcat(stri, "a handle found had no name, or duplicate handle name");
+ break;
+ case 0xA2:
+ strcat(stri, "attempted to wrap around 1M conventional address space");
+ break;
+ case 0xA3:
+ strcat(stri, "source array corrupted");
+ break;
+ case 0xA4:
+ strcat(stri, "operating system denied access");
+ break;
+ default:
+ strcat(stri, "undefined error");
+ }
+}
+
+//==========================================================================
+
+/*
+=====================
+=
+= MM_BombOnError
+=
+=====================
+*/
+
+void MM_BombOnError(boolean bomb, mminfo_t *mm)
+{
+ mm->bombonerror = bomb;
+}
+
+void MM_GetNewBlock(mminfo_t *mm)
+{
+ if(!mm->mmfree)
+ MML_ClearBlock(mm);
+ mm->mmnew=mm->mmfree;
+ mm->mmfree=mm->mmfree->next;
+ /*if(!(mm->mmnew=mm->mmfree))
+ {
+ printf("MM_GETNEWBLOCK: No free blocks!");
+ return;
+ }
+ mm->mmfree=mm->mmfree->next;*/
+}
+
+void MM_FreeBlock(mmblocktype *x, mminfo_t *mm)
+{
+ x->useptr=NULL;
+ x->next=mm->mmfree;
+ mm->mmfree=x;
+}
+
+void MM_seguin(void)
+{
+ __asm
+ {
+ push ds
+ mov ax,ds
+ inc ax
+ mov ds,ax
+ }
+}
+
+void MM_segude(void)
+{
+ __asm
+ {
+ pop ds
+ }
+}
+
+/*
+pull data from far and put it into ds var
+mov ax,es:si
+mov x,ax
+*/
+/*
+ss stack segment
+sp top of stack
+bp bottem of stack
+*/
--- /dev/null
+/* Catacomb Apocalypse Source Code
+ * Copyright (C) 1993-2014 Flat Rock Software
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+// ID_MM.H
+
+#ifndef __16_EXMM__
+#define __16_EXMM__
+
+#include <string.h>
+#include <malloc.h>
+//#include <bios.h>
+#include "16_head.h"
+//#include "modex16.h"
+//#include "src/lib/16_ca.h"
+//++++mh #include "src/lib/16_in.h"
+
+#ifdef __DEBUG__ // 1 == Debug/Dev ; 0 == Production/final
+#define OUT_OF_MEM_MSG "MM_GetPtr: Out of memory!\nYou were short :%lu bytes"
+#else
+#define OUT_OF_MEM_MSG "\npee\n"
+#endif
+
+
+#define SAVENEARHEAP 0x200 // space to leave in data segment
+#define SAVEFARHEAP 0x400 // space to leave in far heap
+
+#define BUFFERSIZE 0x1000 // miscelanious, allways available buffer
+
+#define MAXBLOCKS 720
+
+
+
+//--------
+
+#define EMS_INT 0x67
+
+#define EMS_STATUS 0x40
+#define EMS_GETFRAME 0x41
+#define EMS_GETPAGES 0x42
+#define EMS_ALLOCPAGES 0x43
+#define EMS_MAPPAGE 0x44
+#define EMS_MAPXPAGE 0x50
+#define EMS_FREEPAGES 0x45
+#define EMS_VERSION 0x46
+
+//--------
+
+#define XMS_VERSION 0x00
+
+#define XMS_ALLOCHMA 0x01
+#define XMS_FREEHMA 0x02
+
+#define XMS_GENABLEA20 0x03
+#define XMS_GDISABLEA20 0x04
+#define XMS_LENABLEA20 0x05
+#define XMS_LDISABLEA20 0x06
+#define XMS_QUERYA20 0x07
+
+#define XMS_QUERYREE 0x08
+#define XMS_ALLOC 0x09
+#define XMS_FREE 0x0A
+#define XMS_MOVE 0x0B
+#define XMS_LOCK 0x0C
+#define XMS_UNLOCK 0x0D
+#define XMS_GETINFO 0x0E
+#define XMS_RESIZE 0x0F
+
+#define XMS_ALLOCUMB 0x10
+#define XMS_FREEUMB 0x11
+
+//==========================================================================
+
+typedef struct
+{
+ dword nearheap,farheap,EMSmem,XMSmem,mainmem;
+ //__segment segu;
+} mminfotype;
+
+//==========================================================================
+
+extern void (* beforesort) (void);
+extern void (* aftersort) (void);
+extern void (* XMSaddr) (void); // far pointer to XMS driver
+
+//==========================================================================
+
+/*
+=============================================================================
+
+ LOCAL INFO
+
+=============================================================================
+*/
+
+#define LOCKBIT 0x80 // if set in attributes, block cannot be moved
+#define PURGEBITS 3 // 0-3 level, 0= unpurgable, 3= purge first
+#define PURGEMASK 0xfffc
+#define BASEATTRIBUTES 0 // unlocked, non purgable
+
+#define MAXUMBS 12
+#define MAPPAGES 4//mm->EMSpagesmapped
+
+typedef struct mmblockstruct
+{
+ //word start,length;
+ word start; dword length;
+ unsigned attributes;
+ memptr *useptr; // pointer to the segment start
+ struct mmblockstruct huge *next;
+} mmblocktype;
+
+
+typedef struct
+{
+ memptr bufferseg;
+ boolean mmstarted, bombonerror, mmerror;
+ void huge *farheap;
+ void *nearheap;
+ //byte EMS_status;
+ unsigned totalEMSpages,freeEMSpages,EMSpageframe,EMSpagesmapped,EMShandle;
+ unsigned int EMSVer;
+ word numUMBs,UMBbase[MAXUMBS];
+ //dword numUMBs,UMBbase[MAXUMBS];
+ mmblocktype huge mmblocks[MAXBLOCKS],huge *mmhead,huge *mmfree,huge *mmrover,huge *mmnew;
+} mminfo_t;
+
+/*
+=============================================================================
+
+ GLOBAL VARIABLES
+
+=============================================================================
+*/
+
+
+/*
+=============================================================================
+
+ LOCAL VARIABLES
+
+=============================================================================
+*/
+
+//==========================================================================
+
+boolean MML_CheckForEMS(void);
+byte MML_SetupEMS(mminfo_t *mm);
+void MML_ShutdownEMS(mminfo_t *mm);
+byte MM_MapEMS(mminfo_t *mm, mminfotype *mmi);
+byte MM_MapXEMS(mminfo_t *mm, mminfotype *mmi);
+boolean MML_CheckForXMS(mminfo_t *mm);
+void MML_SetupXMS(mminfo_t *mm, mminfotype *mmi);
+void MML_ShutdownXMS(mminfo_t *mm);
+void MML_UseSpace(/*d*/word segstart, dword seglength, mminfo_t *mm);
+void MML_ClearBlock(mminfo_t *mm);
+
+void MM_Startup(mminfo_t *mm, mminfotype *mmi);
+void MM_Shutdown(mminfo_t *mm);
+
+void MM_GetPtr(memptr *baseptr,dword size, mminfo_t *mm, mminfotype *mmi);
+void MM_FreePtr(memptr *baseptr, mminfo_t *mm);
+void MM_SetPurge(memptr *baseptr, int purge, mminfo_t *mm);
+void MM_SetLock(memptr *baseptr, boolean locked, mminfo_t *mm);
+void MM_SortMem(mminfo_t *mm);
+void MM_ShowMemory(/*page_t *page, */mminfo_t *mm);
+void MM_DumpData(mminfo_t *mm);
+dword MM_UnusedMemory(mminfo_t *mm);
+dword MM_TotalFree(mminfo_t *mm);
+void MM_Report(/*page_t *page, */mminfo_t *mm, mminfotype *mmi);
+static void MM_EMSerr(byte *stri, byte err);
+void MM_BombOnError(boolean bomb, mminfo_t *mm);
+void MM_GetNewBlock(mminfo_t *mm);
+void MM_FreeBlock(mmblocktype *x, mminfo_t *mm);
+
+//==========================================================================
+
+#endif
*
*/
/*
- exmm test
+ exmm test borland c ver
*/
#include <stdio.h>
#include <bios.h>
-#include "src/lib/16_head.h"
+/*#include "src/lib/16_head.h"
#include "src/lib/16_ca.h"
-#include "src/lib/16_mm.h"
+#include "src/lib/16_mm.h"*/
+#include "16_head.h"
+#include "16_ca.h"
+#include "16_mm.h"
//#include "src/lib/modex16.h"
#pragma hdrstop\r
\r
main(int argc, char *argv[])
{
mminfo_t mm; mminfotype mmi;
- __segment segu;
+ void _seg * segu;
#ifdef FILERL
memptr bigbuffer;
char *bakapee;
#ifdef FILERL
if(argv[1]) bakapee = argv[1];
- else bakapee = "data/koishi~~.pcx";
+ else bakapee = "../../data/koishi~~.pcx";
#endif
textInit();\r
//printf("mmi.segu=%p\n", (mmi.segu));
#ifdef FILERL
// bakapeehandle = open(bakapee,O_RDONLY | O_BINARY, S_IREAD);
- printf("size of big buffer~=%u\n", _bmsize(segu, bigbuffer));
+//wat printf("size of big buffer~=%u\n", _bmsize(segu, bigbuffer));
// if(CA_FarRead(bakapeehandle,(void far *)&bigbuffer,sizeof(bigbuffer),&mm))
#ifdef FILEREAD
printf(" read\n");
+++ /dev/null
-Seg:0 Size:6828 Owner:0x1674\r
-Seg:1b85 Size:33 Owner:0x46c7\r
-Seg:1ba6 Size:256 Owner:0xc25c\r
-Seg:1f4b Size:45238 Owner:0x90c3\r
-Seg:d022 Size:4294967263 Owner:0x91e8\r
-Seg:d022 Size:4294967263 Owner:0x8b04\r
-Seg:d022 Size:4294967263 Owner:0x26b8\r
-Seg:d022 Size:4294967263 Owner:0xf04e\r
-Seg:d022 Size:4294967263 Owner:0x7f94\r
-Seg:d022 Size:4294967263 Owner:0xc01b\r
-Seg:d022 Size:4294967263 Owner:0x1a2\r
-Seg:d022 Size:4294967263 Owner:0x9005\r
-Seg:d022 Size:4294967263 Owner:0x3350\r
-Seg:d022 Size:4294967263 Owner:0x2b8\r
-Seg:d022 Size:419 Owner:0x2eb8\r
-Seg:e000 Size:4294909951 Owner:0xc02b\r
projects / 16.git / commitdiff