Initial support for a program that builds shape tables

Makefile

@@ -4,7 +4,7 @@ LFLAGS =
 
 all:	dos33 asoft_detoken mkdos33fs make_b tokenize_asoft \
 	dos33_text2ascii integer_detoken char2hex pcx2hgr \
-	asoft_presenter
+	asoft_presenter	shape_table
 
 
 
@@ -26,6 +26,12 @@ integer_detoken:	integer_detoken.o
 integer_detoken.o:	integer_detoken.c
 			$(CC) $(CFLAGS) -c integer_detoken.c
 
+shape_table:		shape_table.o
+			$(CC) $(LFLAGS) -o shape_table shape_table.o
+
+shape_table.o:		shape_table.c
+			$(CC) $(CFLAGS) -c shape_table.c
+
 tokenize_asoft:		tokenize_asoft.o
 			$(CC) $(LFLAGS) -o tokenize_asoft tokenize_asoft.o
 
@@ -76,7 +82,7 @@ install:
 clean:		
 		rm -f *~ *.o asoft_detoken dos33 make_b mkdos33fs \
 			tokenize_asoft dos33_text2ascii integer_detoken \
-			char2hex pcx2hgr asoft_presenter
+			char2hex pcx2hgr asoft_presenter shape_table
 		cd tests && make clean
 		cd presenter_demo && make clean
 

shape_table.c

@@ -0,0 +1,71 @@
+/* http://www.atariarchives.org/cgp/Ch03_Sec05.php */
+
+#include <stdio.h>
+#include <string.h>
+
+#define MAX_SIZE 8192 /* not really, but anything larger would be crazy */
+
+static unsigned char table[MAX_SIZE];
+  
+void set_offset(current_shape,current_offset) {
+
+  table[2+(current_shape*2)]=current_offset&0xff;
+  table[2+(current_shape*2)+1]=(current_offset>>8)&0xff;
+}
+
+int main(int argc, char **argv) {
+
+  char string[BUFSIZ];
+  char *result;
+  int table_size=0;
+  int num_shapes=0;
+  int current_offset=0,current_shape=0;
+  int i;
+
+
+  while(1) {
+    result=fgets(string,BUFSIZ,stdin);
+    if (result==NULL) break;
+
+    /* skip comments and blank lines */
+    if ((string[0]=='#') || (string[0]=='\n')) continue;
+
+    sscanf(string,"%d",&num_shapes);
+
+  }
+
+  printf("Num shapes: %d\n",num_shapes);
+
+  table[0]=num_shapes;
+  table[1]=0;
+
+  current_shape=0;
+  current_offset=2+2*(num_shapes);
+
+  set_offset(current_shape,current_offset);
+
+  /* Find START */
+
+  while(1) {
+    result=fgets(string,BUFSIZ,stdin);
+    if (result==NULL) break;
+
+    /* skip comments and blank lines */
+    if ((string[0]=='#') || (string[0]=='\n')) continue;
+
+    if (!strstr(string,"START")) continue;
+
+  }
+  
+  table_size=current_offset;
+
+  for(i=0;i<current_offset;i++) {
+    if(i%10==0) printf("%d DATA ",100+i/10);
+    printf("%d",table[i]);
+
+    if ((i%10==9)||(i==current_offset-1)) printf("\n");
+    else printf(",");
+  }
+
+  return 0;
+}