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dos33fsprogs
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dos33fsprogs/graphics/hgr/vgi/make_vgi_asm.c

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#include <stdio.h>
#include <ctype.h>
#include <string.h>
#define MODE_ASM 0
#define MODE_BIN 1
#define VGI_CLEARSCREEN 0
#define VGI_RECTANGLE 1
#define VGI_CIRCLE 2
#define VGI_FILLED_CIRCLE 3
#define VGI_POINT 4
#define VGI_LINETO 5
#define VGI_DITHER_RECTANGLE 6
#define VGI_VERT_TRIANGLE 7
#define VGI_HORIZ_TRIANGLE 8
#define VGI_VSTRIPE_RECTANGLE 9
#define VGI_LINE 10
#define VGI_LINE_FAR 11
#define VGI_END 15
/* non-encoded pseudo-values */
#define VGI_VERT_TRIANGLE_SKIP 128+7
static int output_bytes(int mode, unsigned char *bytes, int count) {
int i;
if (mode==MODE_ASM) {
printf(".byte ");
for(i=0;i<count;i++) {
printf("$%02X",bytes[i]);
if (i<count-1) {
printf(",");
}
else {
printf("\n");
}
}
}
else {
fwrite(bytes,1,count,stdout);
}
return count;
}
int main(int argc, char **argv) {
char buffer[1024];
unsigned char output[1024];
char *ptr;
int type,color1,color2,x1,x2,y1,y2,r,xl,xr,yt,yb;
int line=1;
int size=0;
int skip=0;
int mode=MODE_ASM;
int lastx=0,lasty=0,lastcolor=0;
int tempx,tempcolor;
if (argc>1) {
if ((argv[1][0]=='-') && (argv[1][1]=='b')) {
mode=MODE_BIN;
}
}
while(1) {
type=0;
ptr=fgets(buffer,1024,stdin);
if (ptr==NULL) break;
if (buffer[0]==';') continue;
if (isalpha(buffer[0])) {
if (!strncmp(buffer,"CLS",3)) {
type=VGI_CLEARSCREEN;
}
if (!strncmp(buffer,"RECT",4)) {
type=VGI_RECTANGLE;
}
if (!strncmp(buffer,"CIRC",4)) {
type=VGI_CIRCLE;
}
if (!strncmp(buffer,"FCIRC",5)) {
type=VGI_FILLED_CIRCLE;
}
if (!strncmp(buffer,"POINT",5)) {
type=VGI_POINT;
}
if (!strncmp(buffer,"LINETO",6)) {
type=VGI_LINETO;
}
else if (!strncmp(buffer,"LINEF",5)) {
type=VGI_LINE_FAR;
}
else if (!strncmp(buffer,"LINE",4)) {
type=VGI_LINE;
}
if (!strncmp(buffer,"DRECT",5)) {
type=VGI_DITHER_RECTANGLE;
}
if (!strncmp(buffer,"VTRISK",6)) {
type=VGI_VERT_TRIANGLE_SKIP;
} else if (!strncmp(buffer,"VTRI",4)) {
type=VGI_VERT_TRIANGLE;
}
if (!strncmp(buffer,"HTRI",4)) {
type=VGI_HORIZ_TRIANGLE;
}
if (!strncmp(buffer,"VSTRP",5)) {
type=VGI_VSTRIPE_RECTANGLE;
}
if (!strncmp(buffer,"END",3)) {
type=VGI_END;
}
}
else {
sscanf(buffer,"%i",&type);
}
switch(type) {
case VGI_CLEARSCREEN: /* clear screen */
sscanf(buffer,"%*s %i",&color1);
// printf(".byte $%02X,",(type<<4)|2);
// printf("$%02X\n",color1);
output[0]=(type<<4)|2;
output[1]=color1;
output_bytes(mode,output,2);
size+=2;
break;
case VGI_RECTANGLE: /* compact rectangle */
sscanf(buffer,"%*s %i %i %i %i %i %i",
&color1,&color2,
&x1,&y1,&x2,&y2);
// printf(".byte $%02X,",(type<<4)|6);
// printf("$%02X,",(color1<<4)|color2);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X,",x2-x1);
// printf("$%02X\n",y2-y1);
output[0]=(type<<4)|6;
output[1]=(color1<<4)|color2;
output[2]=x1;
output[3]=y1;
output[4]=x2-x1;
output[5]=y2-y1;
output_bytes(mode,output,6);
size+=6;
break;
case VGI_CIRCLE: /* circle */
sscanf(buffer,"%*s %i %i %i %i",
&color1,
&x1,&y1,&r);
// printf(".byte $%02X,",(type<<4)|5);
// printf("$%02X,",color1);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X\n",r);
output[0]=(type<<4)|5;
output[1]=color1;
output[2]=x1;
output[3]=y1;
output[4]=r;
output_bytes(mode,output,5);
size+=5;
break;
case VGI_FILLED_CIRCLE: /* filled circle */
sscanf(buffer,"%*s %i %i %i %i",
&color1,
&x1,&y1,&r);
// printf(".byte $%02X,",(type<<4)|5);
// printf("$%02X,",color1);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X\n",r);
output[0]=(type<<4)|5;
output[1]=color1;
output[2]=x1;
output[3]=y1;
output[4]=r;
output_bytes(mode,output,5);
size+=5;
break;
case VGI_POINT: /* point */
sscanf(buffer,"%*s %i %i %i",
&color1,
&x1,&y1);
// printf(".byte $%02X,",(type<<4)|4);
lastx=x1;
lasty=y1;
lastcolor=color1;
if (x1>255) {
x1=x1&0xff;
color1|=128;
}
// printf("$%02X,",color1);
// printf("$%02X,",x1);
// printf("$%02X\n",y1);
output[0]=(type<<4)|4;
output[1]=color1;
output[2]=x1;
output[3]=y1;
output_bytes(mode,output,4);
size+=4;
break;
case VGI_LINETO: /* line to */
sscanf(buffer,"%*s %i %i",
&x1,&y1);
// printf(".byte $%02X,",(type<<4)|3);
// printf("$%02X,",x1);
// printf("$%02X\n",y1);
tempx=lastx;
tempcolor=lastcolor;
if (lastx>255) {
tempx=tempx&0xff;
tempcolor=tempcolor|128;
}
if (x1>255) {
output[0]=(VGI_LINE_FAR<<4)|6;
output[1]=tempcolor;
output[2]=tempx;
output[3]=lasty;
output[4]=(x1&0xff);
output[5]=y1;
output_bytes(mode,output,6);
size+=6;
#if 0
fprintf(stderr,"ADJUSTING %d %d %d %d %d %d\n",
output[0],
output[1],
output[2],
output[3],
output[4],
output[5]);
#endif
}
else {
output[0]=(type<<4)|3;
output[1]=x1;
output[2]=y1;
output_bytes(mode,output,3);
size+=3;
}
lastx=x1;
lasty=y1;
break;
case VGI_DITHER_RECTANGLE: /* dithered rectangle */
sscanf(buffer,"%*s %i %i %i %i %i %i",
&color1,&color2,
&x1,&y1,&x2,&y2);
// printf(".byte $%02X,",(type<<4)|7);
// printf("$%02X,",color1);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X,",x2-x1);
// printf("$%02X,",y2-y1);
// printf("$%02X\n",color2);
output[0]=(type<<4)|7;
output[1]=color1;
output[2]=x1;
output[3]=y1;
output[4]=x2-x1;
output[5]=y2-y1;
output[6]=color2;
output_bytes(mode,output,7);
size+=7;
break;
case VGI_VERT_TRIANGLE: /* vertical triangle */
sscanf(buffer,"%*s %i %i %i %i %i %i",
&color1,
&x1,&y1,&xl,&xr,&yb);
// printf(".byte $%02X,",(type<<4)|7);
// printf("$%02X,",(1<<4)|color1); /* skip=1 */
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X,",xl);
// printf("$%02X,",xr);
// printf("$%02X\n",yb);
output[0]=(type<<4)|7;
output[1]=(1<<4)|color1;
output[2]=x1;
output[3]=y1;
output[4]=xl;
output[5]=xr;
output[6]=yb;
output_bytes(mode,output,7);
size+=7;
break;
case VGI_VERT_TRIANGLE_SKIP: /* vertical triangle w skip*/
sscanf(buffer,"%*s %i %i %i %i %i %i %i",
&color1,
&x1,&y1,&xl,&xr,&yb,&skip);
// printf(".byte $%02X,",(VGI_VERT_TRIANGLE<<4)|7);
// printf("$%02X,",(skip<<4)|color1);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X,",xl);
// printf("$%02X,",xr);
// printf("$%02X\n",yb);
output[0]=(VGI_VERT_TRIANGLE<<4)|7;
output[1]=(skip<<4)|color1;
output[2]=x1;
output[3]=y1;
output[4]=xl;
output[5]=xr;
output[6]=yb;
output_bytes(mode,output,7);
size+=7;
break;
case VGI_HORIZ_TRIANGLE: /* horizontal triangle */
sscanf(buffer,"%*s %i %i %i %i %i %i",
&color1,
&x1,&y1,&yt,&yb,&xr);
// printf(".byte $%02X,",(type<<4)|7);
// printf("$%02X,",color1);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X,",yt);
// printf("$%02X,",yb);
// printf("$%02X\n",xr);
output[0]=(type<<4)|7;
output[1]=color1;
output[2]=x1;
output[3]=y1;
output[4]=yt;
output[5]=yb;
output[6]=xr;
output_bytes(mode,output,7);
size+=7;
break;
case VGI_VSTRIPE_RECTANGLE: /* vstriped rectangle */
sscanf(buffer,"%*s %i %i %i %i %i %i",
&color1,&color2,
&x1,&y1,&x2,&y2);
// printf(".byte $%02X,",(type<<4)|7);
// printf("$%02X,",color1);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X,",x2-x1);
// printf("$%02X,",y2-y1);
// printf("$%02X\n",color2);
output[0]=(type<<4)|7;
output[1]=color1;
output[2]=x1;
output[3]=y1;
output[4]=x2-x1;
output[5]=y2-y1;
output[6]=color2;
output_bytes(mode,output,7);
size+=7;
break;
case VGI_LINE: /* line */
case VGI_LINE_FAR: /* line far */
sscanf(buffer,"%*s %i %i %i %i %i",
&color1,
&x1,&y1,&x2,&y2);
// printf(".byte $%02X,",(type<<4)|6);
lastx=x2;
lasty=y2;
lastcolor=color1;
if (x1>255) {
x1=x1&0xff;
color1|=128;
}
// printf("$%02X,",color1);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X,",x2);
// printf("$%02X\n",y2);
if (x2>255) {
type=VGI_LINE_FAR;
x2=x2&0xff;
}
output[0]=(type<<4)|6;
output[1]=color1;
output[2]=x1;
output[3]=y1;
output[4]=x2;
output[5]=y2;
output_bytes(mode,output,6);
size+=6;
break;
#if 0
sscanf(buffer,"%*s %i %i %i %i %i",
&color1,
&x1,&y1,&x2,&y2);
// printf(".byte $%02X,",(type<<4)|6);
if (x1>255) {
x1=x1&0xff;
color1|=128;
}
if (x2<256) {
fprintf(stderr,"Error! X2 too small %d on line %d\n",x2,line);
}
x2=x2&0xff;
// printf("$%02X,",color1);
// printf("$%02X,",x1);
// printf("$%02X,",y1);
// printf("$%02X,",x2);
// printf("$%02X\n",y2);
output[0]=(type<<4)|6;
output[1]=color1;
output[2]=x1;
output[3]=y1;
output[4]=x2;
output[5]=y2;
output_bytes(mode,output,6);
size+=6;
break;
#endif
case VGI_END: /* end */
// printf(".byte $FF\n");
output[0]=0xff;
output_bytes(mode,output,1);
size+=1;
break;
default:
fprintf(stderr,"Unknown type %i line %d\n",
type,line);
break;
}
line++;
}
printf("\n");
fprintf(stderr,"Size is %d bytes\n",size);
return 0;
}
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