Implemented a simple draw_rect function into the video driver.

2020-05-22 16:30:00 -05:00
parent a1b1b90793
commit 7613ba9de2
3 changed files with 24 additions and 1 deletions
@@ -45,6 +45,20 @@ void print_banner(){
 		}
 	}
 }
+//index = (y_value * width_of_screen) + x_value;
+void draw_rect(int start_x, int start_y, int end_x, int end_y, unsigned char fg, unsigned char bg){
+	unsigned char y = end_y - start_y;
+	unsigned char x = end_x - start_x;
+	int attr =  ((bg << 4) | (fg & 0x0F));
+	unsigned short *buffer = (unsigned short*) 0x000B8000 + (start_y * 80) + start_x;
+	
+	for(unsigned char i = 0; i < y; i++){
+		for(unsigned char j = 0; j < x; j++){
+			unsigned short *where = (unsigned short*) buffer + (i * 80) + j;
+			*where =  0x23 | (attr << 8);
+		}
+	}
+}

 void draw_s(char* string, unsigned char fg, unsigned char bg)
 {