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START/READP.C

@@ -0,0 +1,42 @@
+struct st_readp
+{
+	int	magic;
+	int	wid;
+	int	hig;
+	int	cols;
+	int	add;
+};
+
+void	readp(char *dest,int row,char *src)
+{
+	int	bytes,a,b;
+	struct st_readp *hdr;
+	hdr=(struct st_readp *)src;
+	if(row==-1)
+	{
+		memcpy(dest,src+16,hdr->cols*3);
+		return;
+	}
+	if(row>=hdr->hig) return;
+	src+=hdr->add*16;
+	while(row)
+	{
+		src+=*(int *)src;
+		src+=2;
+		row--;
+	}
+	bytes=*(int *)src;
+	src+=2;
+	while(bytes--)
+	{
+		a=*src++;
+		if(a&0x80)
+		{
+			b=*src++;
+			bytes--;
+			a&=0x7f;
+			while(a--) *dest++=b;
+		}
+		else *dest++=a;
+	}
+}