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- #include <intuition/intuition.h>
- #include <proto/intuition.h>
- #include <graphics/gfx.h>
- #include <graphics/gfxbase.h>
- #include <proto/graphics.h>
- #include <stdio.h>
-
- #include "iffpack.h"
-
- #define BADFLAGS (SPRITES|VP_HIDE|GENLOCK_AUDIO|GENLOCK_VIDEO)
- #define FLAGMASK (~BADFLAGS)
- #define CAMGMASK (FLAGMASK & 0xffffL)
-
- #define ID(a,b,c,d) ((((a)<<8|(b))<<8|(c))<<8|(d))
-
- void SetRGB32( struct ViewPort *, ULONG, ULONG, ULONG, ULONG );
- void GetRGB32( struct ColorMap *, ULONG, ULONG, ULONG *);
-
- #pragma libcall GfxBase SetRGB32 354 3210805
- #pragma libcall GfxBase GetRGB32 384 910804
-
- extern struct GfxBase *GfxBase;
-
- struct BMHD {
- ULONG Size;
- USHORT Width,Height;
- SHORT LeftEdge,TopEdge;
- UBYTE Depth;
- UBYTE Mask;
- UBYTE Compression;
- UBYTE Pad;
- USHORT Transparent;
- UBYTE XAspect,YAspect;
- SHORT ScrWidth,ScrHeight;
- };
-
- static int buf[256];
- static short count,runlen,ptr;
-
- static short rows,bytes,depth;
- static cmode;
-
- static short TempY=0,TempX=0;
- static struct BitMap MyBm;
- static struct RastPort MyRast;
- static short anzcolors;
-
- /* static ULONG colors[256]; */
-
- static UBYTE red[256],green[256],blue[256];
-
- /* Prototypes */
- static ReadHeader(FILE *fp,struct BMHD *bmhd,USHORT *viewmode);
- static ReadBMHD(FILE *fp,struct BMHD *bmhd,USHORT *vmode);
- static ReadCMAP(FILE *fp);
- static ReadCAMG(FILE *fp,USHORT *vmode);
- static WriteBMHD(struct Window *w,FILE *fp,short mode);
- static WriteCMAP(struct Screen *s,FILE *fp,int);
- static WriteCAMG(struct Screen *s,FILE *fp);
- static WriteBODY(struct Window *w,FILE *fp,short mode);
- static compline(FILE *fp,short bytes,short y,short p);
- static comprow(FILE *fp,short rows,short x,short p);
- static initcomp(short width,short height,short depth,short mode);
- static compget(FILE *fp);
-
-
- #define RED(c) (((c)>>16)&0xff)
- #define BLUE(c) (((c)>>8)&0xff)
- #define GREEN(c) ((c)&0xff)
-
-
- #define COLOR32(c) ((c)|((c)<<8)|((c)<<16)|((c)<<24))
-
-
- void SetColors(struct ViewPort *vp)
- {
- short a;
- if(GfxBase->LibNode.lib_Version<39) {
- for(a=0;a<anzcolors;a++) {
- SetRGB4(vp,a,red[a]>>4,green[a]>>4,blue[a]>>4);
- }
- } else {
- for(a=0;a<anzcolors;a++) {
- SetRGB32(vp,a,COLOR32(red[a]),COLOR32(green[a]),COLOR32(blue[a]));
- }
- }
- }
- ReadPicSize(FILE *fp,SHORT *winx,SHORT *winy,SHORT *scrx,SHORT *scry,SHORT *depth,USHORT *vmode)
- {
- struct BMHD bmhd;
- int err;
- if(err=ReadHeader(fp,&bmhd,vmode)) return(err);
- *winx=bmhd.Width;
- *winy=bmhd.Height;
- *scrx=bmhd.ScrWidth;
- *scry=bmhd.ScrHeight;
- *depth=bmhd.Depth;
- return(0);
- }
- ReadBody(struct RastPort *rp,FILE *fp)
- {
- long size;
- short x,y,p;
- int c;
-
- if(!fread(&size,4,1,fp)) return(BAD_IFF);
-
- if(cmode==0) {
- for(y=0;y<rows;y++) {
- for(p=0;p<depth;p++) {
- for(x=0;x<bytes;x++) {
- if((c=getc(fp))==EOF) return(BAD_IFF);
- MyBm.Planes[p][x]=c;
- }
- }
- ClipBlit(&MyRast,0L,0L,rp,0L,(long)y,(long)TempX,1L,192L);
- WaitBlit();
- }
- } else if(cmode==1) {
- for(y=0;y<rows;y++) {
- for(p=0;p<depth;p++) {
- for(x=0;x<bytes;x++) {
- if((c=compget(fp))==EOF) return(BAD_IFF);
- if(c<256) {
- MyBm.Planes[p][x]=c;
- }
- }
- }
- ClipBlit(&MyRast,0L,0L,rp,0L,(long)y,(long)TempX,1L,192L);
- WaitBlit();
- }
- } else if(cmode==2) {
- for(x=0;x<bytes;x++) {
- for(p=0;p<depth;p++) {
- for(y=0;y<rows;y++) {
- if((c=compget(fp))==EOF) return(BAD_IFF);
- if(c<256) {
- MyBm.Planes[p][y<<1]=c;
- }
- }
- }
- ClipBlit(&MyRast,0L,0L,rp,(long)(x<<3),0L,8L,(long)TempY,192L);
- WaitBlit();
- }
- }
- IFFCleanup();
- return(0);
- }
- WriteWindow(FILE *fp,struct Window *w,int mode,int LastColors)
- {
- if(mode<0 || mode>2) return(UNKNOWN_COMPRESSION);
- if(WriteBMHD(w,fp,mode)) return(WRITE_ERROR);
- if(WriteCMAP(w->WScreen,fp,LastColors)) return(WRITE_ERROR);
- if(WriteCAMG(w->WScreen,fp)) return(WRITE_ERROR);
- if(initcomp((short)w->Width,(short)w->Height,(short)w->WScreen->BitMap.Depth,
- mode)) return(NO_MEMORY);
- if(WriteBODY(w,fp,mode)) return(WRITE_ERROR);
- IFFCleanup();
- return(0);
- }
- void IFFCleanup(void)
- {
- short a;
- if(TempX) {
- for(a=0;a<8;a++) {
- if(MyBm.Planes[a])
- FreeRaster(MyBm.Planes[a],(long)TempX,(long)TempY);
- }
- }
- TempX=TempY=0;
- }
-
- static ReadHeader(FILE *fp,struct BMHD *bmhd,USHORT *viewmode)
- {
- short status=0;
- long id[3],sid,size;
- if(!fread(id,12,1,fp)) return(BAD_IFF);
- if(id[0]!=ID('F','O','R','M')) return(BAD_IFF);
- if(id[2]!=ID('I','L','B','M')) return(BAD_IFF);
- *viewmode=0;
- do {
- if(!fread(&sid,4,1,fp)) return(BAD_IFF);
- if(sid==ID('C','M','A','P')) {
- if(status&1) return(BAD_IFF); /* doppelt */
- if(ReadCMAP(fp)) return(BAD_IFF);
- status|=1;
- } else if(sid==ID('C','A','M','G')) {
- if(status&2) return(BAD_IFF); /* doppelt */
- if(ReadCAMG(fp,viewmode)) return(BAD_IFF);
- status|=2;
- } else if(sid==ID('B','M','H','D')) {
- if(status&4) return(BAD_IFF); /* doppelt */
- if(ReadBMHD(fp,bmhd,viewmode)) return(BAD_IFF);
- status|=4;
- } else if(sid!=ID('B','O','D','Y')) {
- if(!fread(&size,4,1,fp)) return(BAD_IFF);
- size+=size&1;
- if(fseek(fp,size,1)) return(BAD_IFF);
- }
- } while(sid!=ID('B','O','D','Y'));
- if(!(status&1) || !(status&4)) return(BAD_IFF); /* Daten fehlen */
- if(initcomp((short)bmhd->Width,(short)bmhd->Height,(short)bmhd->Depth,
- (short)bmhd->Compression)) return(NO_MEMORY);
- rows=bmhd->Height;
- bytes=((bmhd->Width+15)>>3)&0xfffe;
- depth=bmhd->Depth;
- cmode=bmhd->Compression;
- if(cmode<0 || cmode>2) return(UNKNOWN_COMPRESSION);
- return(0);
- }
- static ReadBMHD(FILE *fp,struct BMHD *bmhd,USHORT *vmode)
- {
- if(!fread(bmhd,sizeof(struct BMHD),1,fp)) return(BAD_IFF);
- if(bmhd->Size!=20) return(BAD_IFF);
- *vmode=0;
- if(bmhd->Width>400 && bmhd->Depth<=4) *vmode|=HIRES;
- if(bmhd->Height>300) *vmode|=LACE;
- if(bmhd->Depth>6) *vmode|=HAM;
- return(0);
- }
- static ReadCMAP(FILE *fp)
- {
- long size;
- short a;
- int r,g,b;
- if(!fread(&size,4,1,fp)) return(1);
- if(size % 3) return(1);
- size/=3;
- if(size>256) return(1);
- anzcolors=size;
- for(a=0;a<size;a++) {
- if((r=getc(fp))==EOF) return(1);
- if((g=getc(fp))==EOF) return(1);
- if((b=getc(fp))==EOF) return(1);
-
- red[a]=r;
- green[a]=g;
- blue[a]=b;
- }
- return(0);
- }
- static ReadCAMG(FILE *fp,USHORT *vmode)
- {
- long a;
- long size;
- if(!fread(&size,4,1,fp)) return(1);
- if(size!=4) return(1);
- if(!fread(&a,4,1,fp)) return(1);
- *vmode=a&CAMGMASK;
- return(0);
- }
-
- static WriteBMHD(struct Window *w,FILE *fp,short mode)
- {
- struct BMHD bm;
- if(!fwrite("FORM ILBMBMHD",16,1,fp)) return(1);
- bm.Size=20;
- bm.Width=w->Width;
- bm.Height=w->Height;
- bm.ScrWidth=w->WScreen->Width;
- bm.ScrHeight=w->WScreen->Height;
- bm.LeftEdge=bm.TopEdge=0;
- bm.Depth=w->WScreen->BitMap.Depth;
- bm.Mask=bm.Pad=0;
- bm.Compression=mode;
- bm.Transparent=0;
- bm.YAspect=11;
- bm.XAspect=10;
- if((w->WScreen->ViewPort.Modes&LACE) && !(w->WScreen->ViewPort.Modes&HIRES)) bm.XAspect=20;
- if(!(w->WScreen->ViewPort.Modes&LACE) && (w->WScreen->ViewPort.Modes&HIRES)) bm.XAspect=5;
- if(!fwrite(&bm,sizeof(struct BMHD),1,fp)) return(1);
- return(0);
- }
- static WriteCMAP(struct Screen *s,FILE *fp,int LastColors)
- {
- long size;
- short anz,col;
- short i;
- struct ViewPort *vp;
- ULONG ColorSet[3];
-
- vp=&s->ViewPort;
-
- if(!fwrite("CMAP",4,1,fp)) return(1);
- anz=s->BitMap.Depth;
- anz=1<<anz;
-
- if(vp->Modes&HAM) { /* HAM-Screen */
- if(anz<256) anz=16; else anz=64;
- }
-
- if(vp->Modes&EXTRA_HALFBRITE) anz=32;
-
- size=3*anz;
- if(!fwrite(&size,4,1,fp)) return(1);
-
- if(!LastColors || anz>anzcolors) {
- if(GfxBase->LibNode.lib_Version<39) {
-
- for(i=0;i<anz;i++) {
- col=GetRGB4(vp->ColorMap,(long)i);
- red[i]=((col>>8)&0xf)<<4;
- green[i]=((col>>4)&0xf)<<4;
- blue[i]=(col&0xf)<<4;
- }
- } else {
- for(i=0;i<anz;i++) {
- GetRGB32(vp->ColorMap,i,1,ColorSet);
- red[i]=ColorSet[0]>>24;
- green[i]=ColorSet[1]>>24;
- blue[i]=ColorSet[2]>>24;
- }
- }
- }
-
- for(i=0;i<anz;i++) {
- if(putc(red[i],fp)==EOF) return(1);
- if(putc(green[i],fp)==EOF) return(1);
- if(putc(blue[i],fp)==EOF) return(1);
- }
-
- return(0);
- }
- static WriteCAMG(struct Screen *s,FILE *fp)
- {
- long a;
- if(!fwrite("CAMG",4,1,fp)) return(1);
- a=4;
- if(!fwrite(&a,4,1,fp)) return(1);
- a=s->ViewPort.Modes;
- a&=CAMGMASK;
- if(!fwrite(&a,4,1,fp)) return(1);
- return(0);
- }
- static WriteBODY(struct Window *w,FILE *fp,short mode)
- {
- struct RastPort *rp;
- struct BitMap *bm;
- short bytes,rows;
- long pos;
- long size,bodysize,depth;
- short x,y,p;
-
- UBYTE *plane;
-
- rp=w->RPort;
-
- if(!fwrite("BODY ",8,1,fp)) return(1);
- pos=ftell(fp);
-
- bm=MyRast.BitMap;
-
- bytes=((w->Width+15)>>3) & 0xfffe;
- rows=w->Height;
- depth=bm->Depth;
-
- if(mode==2) {
- for(x=0;x<bytes;x++) {
- if(x) {
- ClipBlit(rp,(x-1L)<<3L,0L,&MyRast,0L,0L,16L,(long)TempY,192L);
- WaitBlit();
- } else {
- ClipBlit(rp,0L,0L,&MyRast,8L,0L,8L,(long)TempY,192L);
- WaitBlit();
- }
- for(p=0;p<depth;p++) {
- if(comprow(fp,rows,x,p)) return(1);
- }
- }
- } else if(mode==1) {
- for(y=0;y<rows;y++) {
- if(y) {
- ClipBlit(rp,0L,(long)y-1L,&MyRast,0L,0L,(long)TempX,2L,192L);
- WaitBlit();
- } else {
- ClipBlit(rp,0L,0L,&MyRast,0L,1L,(long)TempX,1L,192L);
- WaitBlit();
- }
- for(p=0;p<depth;p++) {
- if(compline(fp,bytes,y,p)) return(1);
- }
- }
- } else {
- for(y=0;y<rows;y++) {
- ClipBlit(rp,0L,(long)y,&MyRast,0L,0L,(long)TempX,1L,192L);
- WaitBlit();
- for(p=0;p<depth;p++) {
- plane=MyBm.Planes[p];
- for(x=0;x<bytes;x++) {
- if(putc((int)(plane[x]),fp)==EOF) return(1);
- }
- }
- }
- }
-
- size=ftell(fp);
- if(size&1) if(putc(0,fp)==EOF) return(1); /* auf Wortgrenze auffuellen */
- bodysize=size-pos;
- if(fseek(fp,pos-4L,0)) return(1);
- if(!fwrite(&bodysize,4,1,fp)) return(1);
- if(fseek(fp,4L,0)) return(1);
- size=(size-8+1)&0xfffffffe;
- if(!fwrite(&size,4,1,fp)) return(1);
- return(0);
- }
-
- static compline(FILE *fp,short bytes,short y,short p)
- {
- short x,x2,lx;
- short found;
- short a;
- UBYTE * ptr;
-
- ptr=&MyBm.Planes[p][bytes];
- lx=0;
- for(x=0;x<bytes;x++) {
- x2=x;
- found=0;
- while(ptr[x2]==ptr[x2+1] && x2<bytes-1 && x2-x<127) x2++;
- x2++;
- if((x-lx)==0 && x2-x>=2 || x2-x>=3) {
- if(x-lx) {
- if(putc((int)(x-lx-1),fp)==EOF) return(1);
- for(a=lx;a<x;a++) if(putc((int)ptr[a],fp)==EOF) return(1);
- }
- if(putc(x-x2+1,fp)==EOF) return(1);
- if(putc((int)ptr[x],fp)==EOF) return(1);
- x=x2-1;
- found=1;
- }
- if(found) {
- lx=x+1;
- } else {
- if(x-lx==127) {
- if(fputc(127,fp)==EOF) return(1);
- for(a=lx;a<=x;a++) if(putc(ptr[a],fp)==EOF) return(1);
- lx=x+1;
- }
- }
- }
- if(lx<bytes) {
- if(putc(bytes-lx-1,fp)==EOF) return(1);
- for(a=lx;a<bytes;a++) if(putc((int)ptr[a],fp)==EOF) return(1);
- }
- return(0);
- }
- static comprow(FILE *fp,short rows,short x,short p)
- {
- short y,y2,y3,ly;
- short found;
- short a;
- UBYTE * ptr;
-
- ptr=MyBm.Planes[p];
- ly=0;
- for(y=0;y<rows;y++) {
- y3=y2=y;
- found=0;
- while(ptr[(y2<<1)+1]==ptr[(y2<<1)+3] && y2<rows-1 &&
- y2-y<127) y2++;
- y2++;
- if(x) {
- while(ptr[y3<<1]==ptr[(y3<<1)+1] && y3<rows &&
- y3-y<256) y3++;
- }
- if(y2>=y3) {
- if(y-ly==0 && y2-y>=2 || y2-y>=3) {
- if(y-ly) {
- if(putc(y-ly-1,fp)==EOF) return(1);
- for(a=ly;a<y;a++)
- if(putc((int)ptr[(a<<1)+1],fp)==EOF) return(1);
- }
- if(putc(y-y2+1,fp)==EOF) return(1);
- if(putc((int)ptr[(y<<1)+1],fp)==EOF) return(1);
- y=y2-1;
- found=1;
- }
- } else {
- if(!y-ly && y3-y>=2 || y3-y>=3) {
- if(y-ly) {
- if(putc(y-ly-1,fp)==EOF) return(1);
- for(a=ly;a<y;a++)
- if(putc((int)ptr[(a<<1)+1],fp)==EOF) return(1);
- }
- if(putc(128,fp)==EOF) return(1);
- if(putc(y3-y-1,fp)==EOF) return(1);
- y=y3-1;
- found=1;
- }
- }
- if(found) {
- ly=y+1;
- } else {
- if(y-ly==127) {
- if(fputc(127,fp)==EOF) return(1);
- for(a=ly;a<=y;a++)
- if(putc(ptr[(a<<1)+1],fp)==EOF) return(1);
- ly=y+1;
- }
- }
- }
- if(ly<rows) {
- if(putc(rows-ly-1,fp)==EOF) return(1);
- for(a=ly;a<rows;a++)
- if(putc((int)ptr[(a<<1)+1],fp)==EOF) return(1);
- }
- return(0);
- }
-
- static initcomp(short width,short height,short depth,short mode)
- {
- short a;
- if(TempX) IFFCleanup();
- if(mode!=2) {
- TempX=width;
- TempY=2;
- InitRastPort(&MyRast);
- InitBitMap(&MyBm,(long)depth,(long)width,2L);
- for(a=0;a<8;a++) MyBm.Planes[a]=0;
- for(a=0;a<depth;a++) {
- if(!(MyBm.Planes[a]=AllocRaster((long)width,2L))) return(NO_MEMORY);
- }
- } else {
- TempX=16;
- TempY=height;
- InitRastPort(&MyRast);
- InitBitMap(&MyBm,(long)depth,16L,(long)height);
- for(a=0;a<8;a++) MyBm.Planes[a]=0;
- for(a=0;a<depth;a++) {
- if(!(MyBm.Planes[a]=AllocRaster(16L,(long)height))) return(NO_MEMORY);
- }
- }
- MyRast.BitMap=&MyBm;
- count=ptr=0;
- runlen=1;
- return(0);
- }
-
- static compget(FILE *fp)
- {
- int c;
- char cc;
- UBYTE val;
- if(ptr>=count) {
- if((c=getc(fp))==EOF) return(EOF);
- cc=c;
- ptr=0;
- if(c==128) {
- if((c=getc(fp))==EOF) return(EOF);
- count=c+1;
- for(c=0;c<count;c++) buf[c]=256;
- } else if(cc>=0) {
- count=cc+1;
- for(c=0;c<count;c++) if((buf[c]=getc(fp))==EOF) return(EOF);
- } else {
- count=-cc+1;
- if((c=getc(fp))==EOF) return(EOF);
- val=c;
- for(c=0;c<count;c++) buf[c]=val;
- }
- }
- if(ptr>=count) return(EOF);
- return(buf[ptr++]);
- }
-
-
-