changed video mode management, moved to video driver,

the VGA driver registers his specific mode data with the
video driver
kernel function now use virtual functions of the video driver

1 files changed, 29 insertions, 0 deletions

diff --git a/src/drivers/video/video.h b/src/drivers/video/video.h
index 713aa4f..d17a51d 100644
--- a/src/drivers/video/video.h
+++ b/src/drivers/video/video.h
@@ -3,12 +3,34 @@
 
 #include "driver.h"
 
+#include <stdbool.h>
+
+typedef enum {
+	VIDEO_MODE_TYPE_TEXT,
+	VIDEO_MODE_TYPE_GRAPHICS
+} video_mode_type_t;
+
+#define MAX_NOF_VIDEO_MODES 255
+
+typedef struct {
+	video_mode_type_t mode_type;
+	int x;
+	int y;
+	int color_depth;
+} video_mode_t;
+
 typedef struct {
 	driver_t base;
+	unsigned int nof_modes;
+	const video_mode_t *modes[MAX_NOF_VIDEO_MODES];
 } video_t;
 
 typedef struct {
 	driver_vtable_t base;
+	void (*register_mode)( void *obj, const video_mode_t *mode );
+	bool (*supports_mode)( void *obj, const video_mode_t mode );
+	bool (*set_mode)( void *obj, const video_mode_t mode );
+	bool (*switch_mode)( void *obj, const video_mode_t *mode );
 } video_vtable_t;
 
 void video_init( video_t *video, interrupt_t *interrupt, void *context );
@@ -17,4 +39,11 @@ void video_deactivate( void *obj );
 void video_deinit( void *obj );
 void video_print_info( void *obj );
 
+video_mode_t video_make_mode( const video_mode_type_t mode_type, const int x, const int y, const int color_depth );
+
+void video_register_mode( void *obj, const video_mode_t *mode );
+bool video_supports_mode( void *obj, const video_mode_t mode );
+bool video_set_mode( void *obj, const video_mode_t mode );
+bool video_switch_mode( void *obj, const video_mode_t *mode );
+
 #endif // VIDEO_H