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mappyal.c
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mappyal.c
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/* Mappy playback library functions and variables
* (C)2001 Robin Burrows - rburrows@bigfoot.com
* This version (R11C) released May 2002 - for Mappy FMP maps
* Please read the readmeal.txt file and look at the examples
*/
#include <stdio.h>
#include <string.h>
#include <allegro.h>
#ifdef __cplusplus
#error "Hey, stop compiling mappyal.c as C++!, see MappyAL readme.txt"
#endif
/* Comment out next line to disable index0 to truecolour pink conversion */
#define RB8BITTOPINK
#define MER_NONE 0 /* All the horrible things that can go wrong */
#define MER_OUTOFMEM 1
#define MER_MAPLOADERROR 2
#define MER_NOOPEN 3
#define MER_NOSCREEN 4
#define MER_NOACCELERATION 5
#define MER_CVBFAILED 6
#define MER_MAPTOONEW 7
#define AN_END -1 /* Animation types, AN_END = end of anims */
#define AN_NONE 0 /* No anim defined */
#define AN_LOOPF 1 /* Loops from start to end, then jumps to start etc */
#define AN_LOOPR 2 /* As above, but from end to start */
#define AN_ONCE 3 /* Only plays once */
#define AN_ONCEH 4 /* Only plays once, but holds end frame */
#define AN_PPFF 5 /* Ping Pong start-end-start-end-start etc */
#define AN_PPRR 6 /* Ping Pong end-start-end-start-end etc */
#define AN_PPRF 7 /* Used internally by playback */
#define AN_PPFR 8 /* Used internally by playback */
#define AN_ONCES 9 /* Used internally by playback */
typedef struct { /* Structure for data blocks */
long int bgoff, fgoff; /* offsets from start of graphic blocks */
long int fgoff2, fgoff3; /* more overlay blocks */
unsigned long int user1, user2; /* user long data */
unsigned short int user3, user4; /* user short data */
unsigned char user5, user6, user7; /* user byte data */
unsigned char tl : 1; /* bits for collision detection */
unsigned char tr : 1;
unsigned char bl : 1;
unsigned char br : 1;
unsigned char trigger : 1; /* bit to trigger an event */
unsigned char unused1 : 1;
unsigned char unused2 : 1;
unsigned char unused3 : 1;
} BLKSTR;
typedef struct { /* Animation control structure */
signed char antype; /* Type of anim, AN_? */
signed char andelay; /* Frames to go before next frame */
signed char ancount; /* Counter, decs each frame, till 0, then resets to andelay */
signed char anuser; /* User info */
long int ancuroff; /* Points to current offset in list */
long int anstartoff; /* Points to start of blkstr offsets list, AFTER ref. blkstr offset */
long int anendoff; /* Points to end of blkstr offsets list */
} ANISTR;
/* All global variables used by Mappy playback are here */
int maperror, mapgfxinbitmaps; /* Set to a MER_ error if something wrong happens */
short int mapwidth, mapheight, mapblockwidth, mapblockheight, mapdepth;
short int mapblockstrsize, mapnumblockstr, mapnumblockgfx;
PACKFILE * mapfilept;
short int * mappt = NULL;
short int ** maparraypt = NULL;
char * mapcmappt = NULL;
char * mapblockgfxpt = NULL;
char * mapblockstrpt = NULL;
ANISTR * mapanimstrpt = NULL;
int * mapanimseqpt = NULL;
ANISTR * mapanimstrendpt;
RGB mapcmap6bit[256];
short int * mapmappt[8] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
short int ** mapmaparraypt[8] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
BITMAP ** abmTiles = NULL;
/* NEW for Release 6 */
int mapaltdepth;
int maptype, mapislsb, mapclickmask;
int mapblockgapx, mapblockgapy, mapblockstaggerx, mapblockstaggery;
int mapblocksinvidmem, mapblocksinsysmem;
char mapnovctext[80];
/* End of Mappy globals */
int MapGenerateYLookup (void)
{
int i, j;
for (i=0;i<8;i++) {
if (mapmaparraypt[i]!=NULL) { free (mapmaparraypt[i]); mapmaparraypt[i] = NULL; }
if (mapmappt[i]!=NULL) {
mapmaparraypt[i] = malloc (mapheight*sizeof(short int *));
if (mapmaparraypt[i] == NULL) return -1;
for (j=0;j<mapheight;j++) mapmaparraypt[i][j] = (mapmappt[i]+(j*mapwidth));
if (mapmappt[i] == mappt) maparraypt = mapmaparraypt[i];
}
}
return 0;
}
static int MEClickmask (int x, int y, int xory)
{
if (abmTiles == NULL) return 0;
x %= mapblockgapx; y %= mapblockgapy;
if (x >= mapblockwidth && xory == 0) return 0;
if (x >= mapblockwidth && xory == 1) {
if (y < mapblockstaggery) return -1;
else return 1;
}
if (y >= mapblockheight && xory == 1) return 1;
if (y >= mapblockheight && xory == 0) {
if (x < mapblockstaggerx) return -1;
else return 0;
}
switch (mapdepth) {
case 8:
if (getpixel (abmTiles[mapclickmask], x, y) == 0) {
if (x < (mapblockwidth/2) && xory == 0) return -1;
if (x >= (mapblockwidth/2) && xory == 0) return 0;
if (y < (mapblockheight/2) && xory == 1) return -1;
if (y >= (mapblockheight/2) && xory == 1) return 1;
}
return 0;
default:
if (getpixel (abmTiles[mapclickmask], x, y) == makecol (255,0,255)) {
if (x < (mapblockwidth/2) && xory == 0) return -1;
if (x >= (mapblockwidth/2) && xory == 0) return 0;
if (y < (mapblockheight/2) && xory == 1) return -1;
if (y >= (mapblockheight/2) && xory == 1) return 1;
}
return 0;
}
return 0;
}
int MapGetXOffset (int xpix, int ypix)
{
int xb;
if (mapblockstaggerx || mapblockstaggery) {
xpix += (mapblockstaggerx);
ypix += (mapblockstaggery);
}
xb = xpix/mapblockgapx;
if ((mapblockstaggerx || mapblockstaggery) && mapclickmask) xb += MEClickmask (xpix, ypix, 0);
if (xb < 0) xb = 0;
if (xb >= mapwidth) xb = mapwidth-1;
return xb;
}
int MapGetYOffset (int xpix, int ypix)
{
int yb;
if (mapblockstaggerx || mapblockstaggery) {
xpix += (mapblockstaggerx);
ypix += (mapblockstaggery);
}
yb = ypix/mapblockgapy;
if ((mapblockstaggerx || mapblockstaggery) && mapclickmask) {
yb *= 2;
yb += MEClickmask (xpix, ypix, 1);
}
if (yb < 0) yb = 0;
if (yb >= mapheight) yb = mapheight-1;
return yb;
}
BLKSTR * MapGetBlockInPixels (int x, int y)
{
int xp, yp;
short int * mymappt;
ANISTR * myanpt;
if (x < 0 || y < 0 || x >= (mapwidth*mapblockwidth) || y >= (mapheight*mapblockheight)) return NULL;
xp = x; yp = y;
x = MapGetXOffset (xp, yp);
y = MapGetYOffset (xp, yp);
if (maparraypt!= NULL) {
mymappt = maparraypt[y]+x;
} else {
mymappt = mappt;
mymappt += x;
mymappt += y*mapwidth;
}
if (*mymappt>=0) return ((BLKSTR*) mapblockstrpt) + *mymappt;
else { myanpt = mapanimstrendpt + *mymappt;
return ((BLKSTR *) mapblockstrpt) + mapanimseqpt[myanpt->ancuroff]; }
}
BLKSTR * MapGetBlock (int x, int y)
{
short int * mymappt;
ANISTR * myanpt;
if (maparraypt!= NULL) {
mymappt = maparraypt[y]+x;
} else {
mymappt = mappt;
mymappt += x;
mymappt += y*mapwidth;
}
if (*mymappt>=0) return ((BLKSTR*) mapblockstrpt) + *mymappt;
else { myanpt = mapanimstrendpt + *mymappt;
return ((BLKSTR *) mapblockstrpt) + mapanimseqpt[myanpt->ancuroff]; }
}
void MapSetBlockInPixels (int x, int y, int strvalue)
{
int xp, yp;
short int * mymappt;
if (x < 0 || y < 0 || x >= (mapwidth*mapblockwidth) || y >= (mapheight*mapblockheight)) return;
xp = x; yp = y;
x = MapGetXOffset (xp, yp);
y = MapGetYOffset (xp, yp);
if (maparraypt!= NULL) {
mymappt = maparraypt[y]+x;
} else {
mymappt = mappt;
mymappt += x;
mymappt += y*mapwidth;
}
*mymappt = strvalue;
}
void MapSetBlock (int x, int y, int strvalue)
{
short int * mymappt;
if (maparraypt!= NULL) {
mymappt = maparraypt[y]+x;
} else {
mymappt = mappt;
mymappt += x;
mymappt += y*mapwidth;
}
*mymappt = strvalue;
}
int MapChangeLayer (int newlyr)
{
if (newlyr<0 || newlyr>7 || mapmappt[newlyr] == NULL) return -1;
mappt = mapmappt[newlyr]; maparraypt = mapmaparraypt[newlyr];
return newlyr;
}
int MapGetBlockID (int blid, int usernum)
{
int i;
BLKSTR * myblkpt;
myblkpt = (BLKSTR *) mapblockstrpt;
if (myblkpt == NULL) return -1;
for (i=0;i<mapnumblockstr;i++) {
switch (usernum) {
case 1:
if (myblkpt[i].user1 == blid) return i;
break;
case 2:
if (myblkpt[i].user2 == blid) return i;
break;
case 3:
if (myblkpt[i].user3 == blid) return i;
break;
case 4:
if (myblkpt[i].user4 == blid) return i;
break;
case 5:
if (myblkpt[i].user5 == blid) return i;
break;
case 6:
if (myblkpt[i].user6 == blid) return i;
break;
case 7:
if (myblkpt[i].user7 == blid) return i;
break;
}
}
return -1;
}
int MapDecodeMAR (unsigned char * mrpt, int marlyr)
{
int i, j;
short int * mymarpt;
if (marlyr < 0 || marlyr > 7) return -1;
if (mapmappt[marlyr] == NULL)
mapmappt[marlyr] = malloc (mapwidth*mapheight*sizeof(short int));
memcpy (mapmappt[marlyr], mrpt, (mapwidth*mapheight*sizeof(short int)));
mymarpt = mapmappt[marlyr];
j = 0; for (i=0;i<(mapwidth*mapheight);i++) { if (mymarpt[i]&0xF) j = 1; }
if (j == 0) {
for (i=0;i<(mapwidth*mapheight);i++) {
if (mymarpt[i] >= 0) mymarpt[i] /= 32;
else mymarpt[i] /= 16;
}
}
return 0;
}
int MapLoadMAR (char * mname, int marlyr)
{
int i, j;
short int * mymarpt;
PACKFILE * marfpt;
if (marlyr < 0 || marlyr > 7) return -1;
marfpt = pack_fopen (mname, "rp");
if (marfpt==NULL) { marfpt = pack_fopen (mname, "r");
if (marfpt==NULL) { return -1; } }
if (mapmappt[marlyr] == NULL)
mapmappt[marlyr] = malloc (mapwidth*mapheight*sizeof(short int));
if (pack_fread (mapmappt[marlyr], (mapwidth*mapheight*sizeof(short int)), marfpt) !=
(mapwidth*mapheight*sizeof(short int))) { pack_fclose (marfpt); return -1; }
pack_fclose (marfpt);
mymarpt = mapmappt[marlyr];
j = 0; for (i=0;i<(mapwidth*mapheight);i++) { if (mymarpt[i]&0xF) j = 1; }
if (j == 0) {
for (i=0;i<(mapwidth*mapheight);i++) {
if (mymarpt[i] >= 0) mymarpt[i] /= 32;
else mymarpt[i] /= 16;
}
}
return 0;
}
void MapInitAnims (void)
{
ANISTR * myanpt;
if (mapanimstrpt==NULL) return;
myanpt = (ANISTR *) mapanimstrendpt; myanpt--;
while (myanpt->antype!=-1)
{
if (myanpt->antype==AN_PPFR) myanpt->antype = AN_PPFF;
if (myanpt->antype==AN_PPRF) myanpt->antype = AN_PPRR;
if (myanpt->antype==AN_ONCES) myanpt->antype = AN_ONCE;
if ((myanpt->antype==AN_LOOPR) || (myanpt->antype==AN_PPRR))
{
myanpt->ancuroff = myanpt->anstartoff;
if ((myanpt->anstartoff)!=(myanpt->anendoff)) myanpt->ancuroff=(myanpt->anendoff)-1;
} else {
myanpt->ancuroff = myanpt->anstartoff;
}
myanpt->ancount = myanpt->andelay;
myanpt--;
}
}
void MapUpdateAnims (void)
{
ANISTR * myanpt;
if (mapanimstrpt==NULL) return;
myanpt = (ANISTR *) mapanimstrendpt; myanpt--;
while (myanpt->antype!=-1)
{
if (myanpt->antype!=AN_NONE) { myanpt->ancount--; if (myanpt->ancount<0) {
myanpt->ancount = myanpt->andelay;
if (myanpt->antype==AN_LOOPF)
{
if (myanpt->anstartoff!=myanpt->anendoff) { myanpt->ancuroff++;
if (myanpt->ancuroff==myanpt->anendoff) myanpt->ancuroff = myanpt->anstartoff;
} }
if (myanpt->antype==AN_LOOPR)
{
if (myanpt->anstartoff!=myanpt->anendoff) { myanpt->ancuroff--;
if (myanpt->ancuroff==((myanpt->anstartoff)-1))
myanpt->ancuroff = (myanpt->anendoff)-1;
} }
if (myanpt->antype==AN_ONCE)
{
if (myanpt->anstartoff!=myanpt->anendoff) { myanpt->ancuroff++;
if (myanpt->ancuroff==myanpt->anendoff) { myanpt->antype = AN_ONCES;
myanpt->ancuroff = myanpt->anstartoff; }
} }
if (myanpt->antype==AN_ONCEH)
{
if (myanpt->anstartoff!=myanpt->anendoff) {
if (myanpt->ancuroff!=((myanpt->anendoff)-1)) myanpt->ancuroff++;
} }
if (myanpt->antype==AN_PPFF)
{
if (myanpt->anstartoff!=myanpt->anendoff) { myanpt->ancuroff++;
if (myanpt->ancuroff==myanpt->anendoff) { myanpt->ancuroff -= 2;
myanpt->antype = AN_PPFR;
if (myanpt->ancuroff<myanpt->anstartoff) myanpt->ancuroff++; }
} } else {
if (myanpt->antype==AN_PPFR)
{
if (myanpt->anstartoff!=myanpt->anendoff) { myanpt->ancuroff--;
if (myanpt->ancuroff==((myanpt->anstartoff)-1)) { myanpt->ancuroff += 2;
myanpt->antype = AN_PPFF;
if (myanpt->ancuroff>myanpt->anendoff) myanpt->ancuroff --; }
} } }
if (myanpt->antype==AN_PPRR)
{
if (myanpt->anstartoff!=myanpt->anendoff) { myanpt->ancuroff--;
if (myanpt->ancuroff==((myanpt->anstartoff)-1)) { myanpt->ancuroff += 2;
myanpt->antype = AN_PPRF;
if (myanpt->ancuroff>myanpt->anendoff) myanpt->ancuroff--; }
} } else {
if (myanpt->antype==AN_PPRF)
{
if (myanpt->anstartoff!=myanpt->anendoff) { myanpt->ancuroff++;
if (myanpt->ancuroff==myanpt->anendoff) { myanpt->ancuroff -= 2;
myanpt->antype = AN_PPRR;
if (myanpt->ancuroff<myanpt->anstartoff) myanpt->ancuroff++; }
} } }
} } myanpt--; }
}
void Mapconv8to6pal (unsigned char * palpt)
{
int i;
for (i=0;i<256;i++)
{
mapcmap6bit[i].r=(*(palpt)>>2);
mapcmap6bit[i].g=(*(palpt+1)>>2);
mapcmap6bit[i].b=(*(palpt+2)>>2);
palpt+=3;
}
}
void MapFreeMem (void)
{
int i;
for (i=0;i<8;i++) { if (mapmappt[i]!=NULL) { free (mapmappt[i]); mapmappt[i] = NULL; } }
mappt = NULL;
for (i=0;i<8;i++) { if (mapmaparraypt[i]!=NULL) { free (mapmaparraypt[i]); mapmaparraypt[i] = NULL; } }
maparraypt = NULL;
if (mapcmappt!=NULL) { free (mapcmappt); mapcmappt = NULL; }
if (mapblockgfxpt!=NULL) { free (mapblockgfxpt); mapblockgfxpt = NULL; }
if (mapblockstrpt!=NULL) { free (mapblockstrpt); mapblockstrpt = NULL; }
if (mapanimseqpt!=NULL) { free (mapanimseqpt); mapanimseqpt = NULL; }
if (mapanimstrpt!=NULL) { free (mapanimstrpt); mapanimstrpt = NULL; }
if (abmTiles != NULL) {
i = 0; while (abmTiles[i]!=NULL) { destroy_bitmap (abmTiles[i]); i++; }
free (abmTiles); abmTiles = NULL;
}
mapnovctext[0] = 0;
mapblocksinvidmem = 0; mapblocksinsysmem = 0;
}
void MapSetPal8 (void)
{
if (screen!=NULL) { if ((bitmap_color_depth (screen)==8) && mapdepth == 8) set_palette (mapcmap6bit); }
}
void MapCorrectColours (void)
{
/* Remember, Intel stores shorts and longs the wrong way round!
* ie. 0x12345678 will be 0x78563412
*/
return;
}
void MapRestore (void)
{
int i, j, k;
unsigned char * newgfxpt;
if (mapgfxinbitmaps!=1 || abmTiles == NULL) return;
i = 0; newgfxpt = mapblockgfxpt; while (abmTiles[i]!=NULL) {
acquire_bitmap (abmTiles[i]);
for (k=0;k<mapblockheight;k++) {
for (j=0;j<mapblockwidth;j++) {
switch (mapdepth) {
case 8:
putpixel (abmTiles[i], j, k, *((unsigned char *) newgfxpt));
newgfxpt++;
break;
case 15:
case 16:
putpixel (abmTiles[i], j, k, *((unsigned short int *) newgfxpt));
newgfxpt+=2;
break;
case 24:
putpixel (abmTiles[i], j, k, makecol (newgfxpt[0], newgfxpt[1], newgfxpt[2]));
newgfxpt+=3;
break;
case 32:
putpixel (abmTiles[i], j, k, makecol (newgfxpt[1], newgfxpt[2], newgfxpt[3]));
newgfxpt+=4;
break;
} } }
release_bitmap (abmTiles[i]);
i++;
}
}
int MapRelocate2 (void)
{
int i, j, k;
BLKSTR * myblkstrpt;
//ANISTR * myanpt;
unsigned char * newgfxpt, * novcarray;
char ascnum[80];
//long int * myanblkpt;
i = mapnumblockstr;
myblkstrpt = (BLKSTR *) mapblockstrpt;
novcarray = malloc (mapnumblockgfx);
memset (novcarray, 0, mapnumblockgfx);
i = 0; while (mapnovctext[i] != 0) {
j = 0; while (mapnovctext[i] >= '0' && mapnovctext[i] <= '9') {
ascnum[j] = mapnovctext[i];
i++; j++;
}
ascnum[j] = 0;
k = atoi(ascnum);
if (k < 0 || k >= mapnumblockgfx) break;
if (mapnovctext[i] == '-') {
i++;
j = 0; while (mapnovctext[i] >= '0' && mapnovctext[i] <= '9') {
ascnum[j] = mapnovctext[i];
i++; j++;
}
ascnum[j] = 0;
j = atoi(ascnum);
if (j < k || j >= mapnumblockgfx) break;
while (k <= j) {
novcarray[k] = 1; k++;
}
} else {
novcarray[k] = 1;
}
if (mapnovctext[i] == ',') i++;
}
if (abmTiles == NULL) abmTiles = malloc ((sizeof (BITMAP *))*(mapnumblockgfx+2));
abmTiles[0] = NULL;
i = 0; newgfxpt = mapblockgfxpt; while (i<mapnumblockgfx) {
abmTiles[i+1] = NULL;
if (mapgfxinbitmaps==1 && novcarray[i]==0) {
abmTiles[i] = create_video_bitmap (mapblockwidth, mapblockheight);
if (abmTiles[i] != NULL) {
mapblocksinvidmem++;
acquire_bitmap (abmTiles[i]);
} else {
abmTiles[i] = create_bitmap (mapblockwidth, mapblockheight);
if (abmTiles[i] == NULL) { MapFreeMem (); maperror = MER_CVBFAILED ; return -1; }
mapblocksinsysmem++;
}
set_clip (abmTiles[i], 0, 0, 0, 0);
} else {
abmTiles[i] = create_bitmap (mapblockwidth, mapblockheight);
if (abmTiles[i] == NULL) { MapFreeMem (); maperror = MER_CVBFAILED ; return -1; }
mapblocksinsysmem++;
set_clip (abmTiles[i], 0, 0, 0, 0);
}
for (k=0;k<mapblockheight;k++) {
for (j=0;j<mapblockwidth;j++) {
switch (mapdepth) {
case 8:
putpixel (abmTiles[i], j, k, *((unsigned char *) newgfxpt));
newgfxpt++;
break;
case 15:
case 16:
putpixel (abmTiles[i], j, k, *((unsigned short int *) newgfxpt));
newgfxpt+=2;
break;
case 24:
putpixel (abmTiles[i], j, k, makecol (newgfxpt[0], newgfxpt[1], newgfxpt[2]));
newgfxpt+=3;
break;
case 32:
putpixel (abmTiles[i], j, k, makecol (newgfxpt[1], newgfxpt[2], newgfxpt[3]));
newgfxpt+=4;
break;
} } }
if (is_video_bitmap(abmTiles[i])) release_bitmap (abmTiles[i]);
i++;
}
i = mapnumblockstr; while (i) {
((BITMAP *) myblkstrpt->bgoff) = abmTiles[myblkstrpt->bgoff];
if (myblkstrpt->fgoff!=0)
((BITMAP *) myblkstrpt->fgoff) = abmTiles[myblkstrpt->fgoff];
if (myblkstrpt->fgoff2!=0)
((BITMAP *) myblkstrpt->fgoff2) = abmTiles[myblkstrpt->fgoff2];
if (myblkstrpt->fgoff3!=0)
((BITMAP *) myblkstrpt->fgoff3) = abmTiles[myblkstrpt->fgoff3];
myblkstrpt++; i--;
}
free (novcarray);
return 0;
}
int MapRelocate (void)
{
int i, j, cdepth, pixcol, ccr, ccg, ccb;
//BLKSTR * myblkstrpt;
unsigned char * oldgfxpt;
unsigned char * mycmappt;
unsigned char * newgfxpt;
unsigned char * newgfx2pt;
if (screen == NULL) { MapFreeMem (); maperror = MER_NOSCREEN; return -1; }
if (!gfx_capabilities&GFX_HW_VRAM_BLIT && mapgfxinbitmaps==1)
{ MapFreeMem (); maperror = MER_NOACCELERATION; return -1; }
cdepth = bitmap_color_depth (screen);
oldgfxpt = (unsigned char *) mapblockgfxpt;
newgfxpt = (unsigned char *)
malloc (mapblockwidth*mapblockheight*((mapdepth+1)/8)*mapnumblockgfx*((cdepth+1)/8));
if (newgfxpt==NULL) { MapFreeMem (); maperror = MER_OUTOFMEM; return -1; }
newgfx2pt = newgfxpt;
mycmappt = (unsigned char *) mapcmappt; pixcol = 0;
for (i=0;i<(mapblockwidth*mapblockheight*mapnumblockgfx);i++)
{
switch (mapdepth) {
case 8:
if (cdepth==8) pixcol = (int) *oldgfxpt; else {
j = (*oldgfxpt)*3;
pixcol = makecol (mycmappt[j], mycmappt[j+1], mycmappt[j+2]);
#ifdef RB8BITTOPINK
if (j == 0 && cdepth!=8) pixcol = makecol (255, 0, 255); }
#endif
oldgfxpt++;
break;
case 15:
ccr = ((((int) *oldgfxpt)&0x7C)<<1);
ccg = ((((((int) *oldgfxpt)&0x3)<<3)|(((int) *(oldgfxpt+1))>>5))<<3);
ccb = (((int) *(oldgfxpt+1)&0x1F)<<3);
ccr |= ((ccr>>5)&0x07);
ccg |= ((ccg>>5)&0x07);
ccb |= ((ccb>>5)&0x07);
pixcol = makecol (ccr, ccg, ccb);
if (cdepth==8) { if (ccr == 0xFF && ccg == 0 && ccb == 0xFF) pixcol = 0; }
oldgfxpt += 2;
break;
case 16:
ccr = (((int) *oldgfxpt)&0xF8);
ccg = ((((((int) *oldgfxpt)&0x7)<<3)|(((int) *(oldgfxpt+1))>>5))<<2);
ccb = (((int) *(oldgfxpt+1)&0x1F)<<3);
ccr |= ((ccr>>5)&0x07);
ccg |= ((ccg>>6)&0x03);
ccb |= ((ccb>>5)&0x07);
pixcol = makecol (ccr, ccg, ccb);
if (cdepth==8) { if (ccr == 0xFF && ccg == 0 && ccb == 0xFF) pixcol = 0; }
oldgfxpt += 2;
break;
case 24:
pixcol = makecol (*oldgfxpt, *(oldgfxpt+1), *(oldgfxpt+2));
if (cdepth==8) { if (*oldgfxpt == 0xFF && *(oldgfxpt+1) == 0 &&
*(oldgfxpt+2) == 0xFF) pixcol = 0; }
oldgfxpt += 3;
break;
case 32:
pixcol = makecol (*(oldgfxpt+1), *(oldgfxpt+2), *(oldgfxpt+3));
if (cdepth==8) { if (*(oldgfxpt+1) == 0xFF && *(oldgfxpt+2) == 0 &&
*(oldgfxpt+3) == 0xFF) pixcol = 0; }
oldgfxpt += 4;
break;
}
switch (cdepth) {
case 8:
*newgfxpt = (unsigned char) pixcol;
newgfxpt++;
break;
case 15:
case 16:
*((unsigned short int *) newgfxpt) = (unsigned short int) pixcol;
newgfxpt+=2;
break;
case 24:
*newgfxpt = (unsigned char) (pixcol>>16)&0xFF;
*(newgfxpt+1) = (unsigned char) (pixcol>>8)&0xFF;
*(newgfxpt+2) = (unsigned char) pixcol&0xFF;
newgfxpt+=3;
break;
case 32:
*newgfxpt = 0;
*(newgfxpt+1) = (unsigned char) (pixcol>>16)&0xFF;
*(newgfxpt+2) = (unsigned char) (pixcol>>8)&0xFF;
*(newgfxpt+3) = (unsigned char) pixcol&0xFF;
newgfxpt+=4;
break;
}
}
free (mapblockgfxpt); mapblockgfxpt = (char *) newgfx2pt;
mapdepth = cdepth;
return MapRelocate2 ();
}
static int MapGetchksz (unsigned char * locpt)
{
return ((((int) (locpt[0]))<<24)|(((int) (locpt[1]))<<16)|
(((int) (locpt[2]))<<8)|((int) (locpt[3])));
}
static int MapGetshort (unsigned char * locpt)
{
int rval;
if (mapislsb)
rval = ((((int) (locpt[1]))<<8)|((int) (locpt[0])));
else
rval = ((((int) (locpt[0]))<<8)|((int) (locpt[1])));
if (rval & 0x8000) rval -= 0x10000;
return rval;
}
static int MapGetlong (unsigned char * locpt)
{
if (mapislsb)
return ((((int) (locpt[3]))<<24)|(((int) (locpt[2]))<<16)|
(((int) (locpt[1]))<<8)|((int) (locpt[0])));
else
return ((((int) (locpt[0]))<<24)|(((int) (locpt[1]))<<16)|
(((int) (locpt[2]))<<8)|((int) (locpt[3])));
}
int MapDecodeMPHD (unsigned char * mdatpt)
{
mdatpt += 8;
if (mdatpt[0] > 1) { maperror = MER_MAPTOONEW; return -1; }
if (mdatpt[2] == 1) mapislsb = 1; else mapislsb = 0;
maptype = (int) mdatpt[3];
if (maptype > 3) { maperror = MER_MAPTOONEW; return -1; }
mapwidth = (short) MapGetshort (mdatpt+4);
mapheight = (short) MapGetshort (mdatpt+6);
mapblockwidth = (short) MapGetshort (mdatpt+12);
mapblockheight = (short) MapGetshort (mdatpt+14);
mapdepth = (short) MapGetshort (mdatpt+16);
mapaltdepth = mapdepth;
mapblockstrsize = (short) MapGetshort (mdatpt+18);
mapnumblockstr = (short) MapGetshort (mdatpt+20);
mapnumblockgfx = (short) MapGetshort (mdatpt+22);
if (MapGetchksz (mdatpt-4) > 28) {
mapblockgapx = (int) MapGetshort (mdatpt+28);
mapblockgapy = (int) MapGetshort (mdatpt+30);
mapblockstaggerx = (int) MapGetshort (mdatpt+32);
mapblockstaggery = (int) MapGetshort (mdatpt+34);
} else {
mapblockgapx = (int) mapblockwidth;
mapblockgapy = (int) mapblockheight;
mapblockstaggerx = 0;
mapblockstaggery = 0;
}
if (MapGetchksz (mdatpt-4) > 36) mapclickmask = (short) MapGetshort (mdatpt+36);
else mapclickmask = 0;
return 0;
}
/*
int DecodeEDHD (unsigned char * mdatpt)
{
int i, j;
short int * mybrshpt;
char * mynamept;
short int * mybrsh2pt;
mdatpt += 8;
xmapoffset = (short) MapGetshort (mdatpt);
ymapoffset = (short) MapGetshort (mdatpt+2);
fgcolour = (int) MapGetlong (mdatpt+4);
bgcolour = (int) MapGetlong (mdatpt+8);
swidth = (short) MapGetshort (mdatpt+12);
sheight = (short) MapGetshort (mdatpt+14);
strtstr = (short) MapGetshort (mdatpt+16);
strtblk = (short) MapGetshort (mdatpt+18);
curstr = (short) MapGetshort (mdatpt+20);
curanim = (short) MapGetshort (mdatpt+22); curanim = -1;
animspd = (short) MapGetshort (mdatpt+24);
span = (short) MapGetshort (mdatpt+26);
numbrushes = (short) MapGetshort (mdatpt+28);
if (clickmask == 0) {
clickmask = (int) MapGetshort (mdatpt+30);
if (clickmask<0 || clickmask >= numblockgfx) clickmask = 0;
}
if (numbrushes>0)
{
mybrshpt =(short int *) (mdatpt+32);
for (i=0;i<8;i++)
{
j = *mybrshpt; j *= *(mybrshpt+1); j *= 2; j += 4;
brshpt[i] = malloc (j); j /= 2; mybrsh2pt = brshpt[i];
*mybrsh2pt = *mybrshpt;
mybrsh2pt++; mybrshpt++;
*mybrsh2pt = *mybrshpt;
mybrsh2pt++; mybrshpt++;
j -= 2;
if (maptype == 0) {
while (j) {
j--;
*mybrsh2pt = *mybrshpt;
if (*mybrsh2pt >= 0) *mybrsh2pt /= BLOCKSTRSIZE;
mybrsh2pt++; mybrshpt++;
}
} else {
while (j) {
j--;
*mybrsh2pt = *mybrshpt;
if (*mybrsh2pt < 0) *mybrsh2pt *= sizeof(ANISTR);
mybrsh2pt++; mybrshpt++;
}
}
numbrushes--; if (!numbrushes) i=8;
}
mynamept = (char *) mybrshpt;
if ((MapGetchksz (mdatpt-4)) > (mynamept-((char *) mdatpt))) {
for (i=0;i<8;i++) {
if (brshpt[i] != NULL) {
strcpy (brshname[i], mynamept);
mynamept += strlen (mynamept);
mynamept++;
}
}
}
}
return 0;
}
int DecodeATHR (unsigned char * mdatpt)
{
int i, j;
mdatpt += 8;
i = 0; while (i < MapGetchksz (mdatpt-4))
{
authorname[i]=mdatpt[i];
if (mdatpt[i]==0) break;
i++;
}
i++; j = 0;
while (i < MapGetchksz (mdatpt-4))
{
authorinfo1[j]=mdatpt[i];
if (mdatpt[i]==0) break;
i++; j++;
}
i++; j = 0;
while (i < MapGetchksz (mdatpt-4))
{
authorinfo2[j]=mdatpt[i];
if (mdatpt[i]==0) break;
i++; j++;
}
i++; j = 0;
while (i < MapGetchksz (mdatpt-4))
{
authorinfo3[j]=mdatpt[i];
if (mdatpt[i]==0) break;
i++; j++;
}
return 0;
}
*/
int MapDecodeCMAP (unsigned char * mdatpt)
{
mdatpt += 8;
mapcmappt = (unsigned char *) malloc (MapGetchksz (mdatpt-4));
if (mapcmappt==NULL) { maperror = MER_OUTOFMEM; return -1; }
memcpy (mapcmappt, mdatpt, MapGetchksz (mdatpt-4));
Mapconv8to6pal (mapcmappt);
return 0;
}
int MapDecodeBKDT (unsigned char * mdatpt)
{
int i, j;
BLKSTR * myblkpt;
mdatpt += 8;
mapblockstrpt = malloc (mapnumblockstr*sizeof(BLKSTR));
if (mapblockstrpt==NULL) { maperror = MER_OUTOFMEM; return -1; }
myblkpt = (BLKSTR *) mapblockstrpt;
j = MapGetchksz (mdatpt-4);
i = 0; while (i < (mapnumblockstr*mapblockstrsize)) {
myblkpt->bgoff = (int) MapGetlong (mdatpt+i);
myblkpt->fgoff = (int) MapGetlong (mdatpt+i+4);
myblkpt->fgoff2 = (int) MapGetlong (mdatpt+i+8);
myblkpt->fgoff3 = (int) MapGetlong (mdatpt+i+12);
if (maptype == 0) {
myblkpt->bgoff /= (mapblockwidth*mapblockheight*((mapdepth+1)/8));
myblkpt->fgoff /= (mapblockwidth*mapblockheight*((mapdepth+1)/8));
myblkpt->fgoff2 /= (mapblockwidth*mapblockheight*((mapdepth+1)/8));
myblkpt->fgoff3 /= (mapblockwidth*mapblockheight*((mapdepth+1)/8));
}
myblkpt->user1 = (unsigned int) MapGetlong (mdatpt+i+16);
myblkpt->user2 = (unsigned int) MapGetlong (mdatpt+i+20);
myblkpt->user3 = (unsigned short int) MapGetshort (mdatpt+i+24);
myblkpt->user4 = (unsigned short int) MapGetshort (mdatpt+i+26);
myblkpt->user5 = mdatpt[i+28];
myblkpt->user6 = mdatpt[i+29];
myblkpt->user7 = mdatpt[i+30];
if (mdatpt[i+31]&0x80) myblkpt->unused3 = 1; else myblkpt->unused3 = 0;
if (mdatpt[i+31]&0x40) myblkpt->unused2 = 1; else myblkpt->unused2 = 0;
if (mdatpt[i+31]&0x20) myblkpt->unused1 = 1; else myblkpt->unused1 = 0;
if (mdatpt[i+31]&0x10) myblkpt->trigger = 1; else myblkpt->trigger = 0;
if (mdatpt[i+31]&0x08) myblkpt->br = 1; else myblkpt->br = 0;
if (mdatpt[i+31]&0x04) myblkpt->bl = 1; else myblkpt->bl = 0;
if (mdatpt[i+31]&0x02) myblkpt->tr = 1; else myblkpt->tr = 0;
if (mdatpt[i+31]&0x01) myblkpt->tl = 1; else myblkpt->tl = 0;
i += mapblockstrsize;
myblkpt++;
}
return 0;
}
int MapDecodeANDT (unsigned char * mdatpt)
{
int numani, i, ancksz;
unsigned char * mdatendpt;
mdatpt += 8;
ancksz = MapGetchksz(mdatpt-4);
mdatendpt = mdatpt+ancksz;
numani = 0; while (1) {
mdatendpt -= 16;
numani++;
if (*mdatendpt == 255) break;
}
mapanimseqpt = malloc (((mdatendpt-mdatpt)/4)*sizeof(int));
if (mapanimseqpt == NULL) { maperror = MER_OUTOFMEM; return -1; }
i = 0; while (mdatpt != mdatendpt) {
mapanimseqpt[i] = MapGetlong (mdatpt);
if (maptype == 0) mapanimseqpt[i] /= mapblockstrsize;
mdatpt += 4; i++;
}
mapanimstrpt = malloc (numani*sizeof(ANISTR));
if (mapanimstrpt == NULL) { maperror = MER_OUTOFMEM; return -1; }
mapanimstrendpt = mapanimstrpt;
mapanimstrendpt += numani;
i = 0; while (i<numani) {
mapanimstrpt[i].antype = mdatendpt[0];
mapanimstrpt[i].andelay = mdatendpt[1];
mapanimstrpt[i].ancount = mdatendpt[2];
mapanimstrpt[i].anuser = mdatendpt[3];
if (maptype == 0) {
mapanimstrpt[i].ancuroff = (int) ((MapGetlong (mdatendpt+4)+ancksz)/4);
mapanimstrpt[i].anstartoff = (int) ((MapGetlong (mdatendpt+8)+ancksz)/4);
mapanimstrpt[i].anendoff = (int) ((MapGetlong (mdatendpt+12)+ancksz)/4);
} else {
mapanimstrpt[i].ancuroff = (int) MapGetlong (mdatendpt+4);
mapanimstrpt[i].anstartoff = (int) MapGetlong (mdatendpt+8);
mapanimstrpt[i].anendoff = (int) MapGetlong (mdatendpt+12);
}
mdatendpt += 16; i++;
}
MapInitAnims ();
return 0;
}
int MapDecodeAGFX (unsigned char * mdatpt)
{
if (bitmap_color_depth (screen) > 8) return 0;
if (mapblockgfxpt != NULL) free (mapblockgfxpt);
mapblockgfxpt = malloc (MapGetchksz (mdatpt+4));
if (mapblockgfxpt==NULL) { maperror = MER_OUTOFMEM; return -1; }
memcpy (mapblockgfxpt, mdatpt+8, MapGetchksz(mdatpt+4));
mapaltdepth = 8;
return 0;