added a third widget (for drawing fonts)

fixed drawing races due to mouse interrupts

2 files changed, 10 insertions, 0 deletions

diff --git a/src/drivers/video/vga.c b/src/drivers/video/vga.c
index 2080283..9d540af 100644
--- a/src/drivers/video/vga.c
+++ b/src/drivers/video/vga.c
@@ -253,6 +253,8 @@ bool vga_set_mode( vga_t *vga, const vga_mode_t mode )
 	vga->mode = mode;
 	vga->mode.segment = get_frame_buffer_segment( vga );
 
+	vga->use_z_buffer = false;
+
 	return true;
 }
 
@@ -380,3 +382,9 @@ void vga_wait_for_retrace( vga_t *vga )
 	while( !( port8_read( &vga->attribute_controller_reset_port ) & 0x08 ) );
 }
 
+void vga_use_z_buffer( vga_t *vga, bool use )
+{
+	vga->use_z_buffer = use;
+}
+
+
diff --git a/src/drivers/video/vga.h b/src/drivers/video/vga.h
index b9a5c87..0f55f74 100644
--- a/src/drivers/video/vga.h
+++ b/src/drivers/video/vga.h
@@ -42,6 +42,7 @@ typedef struct {
 	port8_t attribute_controller_reset_port;
 	vga_mode_t mode;
 	void *context;
+	bool use_z_buffer;
 } vga_t;
 
 typedef struct {
@@ -81,5 +82,6 @@ void vga_draw_rectangle( vga_t *vga, const int x, const int y, const int w, cons
 void vga_clear_screen( vga_t *vga, const vga_color_t color );
 void vga_draw_char( vga_t *vga, const unsigned char c, const int x, const int y, const vga_color_t background, const vga_color_t foreground );
 void vga_wait_for_retrace( vga_t *vga );
+void vga_use_z_buffer( vga_t *vga, bool use );
 
 #endif // VGA_H