Frame buffer manipulation. More...

Include dependency graph for frame_buffer.h:

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Data Structures
struct	frame_buffer_t
	Object constisting of a frame buffer and a number of associated (bit)flags. More...

Enumerations
enum	frame_flag_t { FRAME_FREE_AFTER_DRAW = 1<<1, FRAME_DRAW_IN_PROGRESS = 1<<2 }
	Constants that can be used as metadata bit flags on a frame buffer. More...

Functions
Frame buffer handling
void	init_frame_buffers ()
	Initialise data storage for display frames.

size_t	get_frame_buffer_size ()
	Size in bytes of array pointed to by frame_buffer_t::buffer.

struct frame_buffer_t *	create_frame ()
	Allocate a new frame buffer if possible. Returns NULL on failure.

void	destroy_frame (struct frame_buffer_t *frame)
	Deallocate a frame irrespective of whether the flag FRAME_FREE_AFTER_DRAW is set.

void	clear_frame (struct frame_buffer_t *frame)
	Clear the frame contents, i.e. set frame_buffer_t::buffer to all zeros.

struct frame_buffer_t *	create_empty_frame ()
	Convenience method to create a new frame of which frame_buffer_t::buffer is set to all zeros. More...

Detailed Description

Frame buffer manipulation.

Data Structures