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/*
* video_out.h
*
* Copyright (C) Aaron Holtzman - Aug 1999
* Strongly modified, most parts rewritten: A'rpi/ESP-team - 2000-2001
*
*/
#include <inttypes.h>
#include "font_load.h"
#include "img_format.h"
#define VO_EVENT_EXPOSE 1
#define VO_EVENT_RESIZE 2
#define VO_EVENT_KEYPRESS 4
typedef struct vo_info_s
{
/* driver name ("Matrox Millennium G200/G400" */
const char *name;
/* short name (for config strings) ("mga") */
const char *short_name;
/* author ("Aaron Holtzman <aholtzma@ess.engr.uvic.ca>") */
const char *author;
/* any additional comments */
const char *comment;
} vo_info_t;
typedef struct vo_functions_s
{
/*
* Initialize the display driver.
* params:
* width,height: image source size
* d_width,d_height: size of the requested window size, just a hint
* fullscreen: flag, 0=windowd 1=fullscreen, just a hint
* title: window title, if available
* format: fourcc of pixel format
* returns : zero on successful initialization, non-zero on error.
*/
uint32_t (*init)(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format);
/*
* Query that given pixel format is supported or not.
* params:
* format: fourcc of pixel format
* returns : 1 if supported, 0 if unsupported
*/
uint32_t (*query_format)(uint32_t format);
/*
* Return driver information.
* returns : read-only pointer to a vo_info_t structure.
*/
const vo_info_t* (*get_info)(void);
/*
* Display a new RGB/BGR frame of the video to the screen.
* params:
* src[0] - pointer to the image
*/
uint32_t (*draw_frame)(uint8_t *src[]);
/*
* Draw a planar YUV slice to the buffer:
* params:
* src[3] = source image planes (Y,U,V)
* stride[3] = source image planes line widths (in bytes)
* w,h = width*height of area to be copied (in Y pixels)
* x,y = position at the destination image (in Y pixels)
*/
uint32_t (*draw_slice)(uint8_t *src[], int stride[], int w,int h, int x,int y);
/*
* Draws OSD to the screen buffer
*/
void (*draw_osd)(void);
/*
* Blit/Flip buffer to the screen. Must be called after each frame!
*/
void (*flip_page)(void);
/*
* This func is called after every frames to handle keyboard and
* other events. It's called in PAUSE mode too!
*/
void (*check_events)(void);
/*
* Closes driver. Should restore the original state of the system.
*/
void (*uninit)(void);
} vo_functions_t;
char *vo_format_name(int format);
int vo_init(void);
// NULL terminated array of all drivers
extern vo_functions_t* video_out_drivers[];
// currect resolution/bpp on screen: (should be autodetected by vo_init())
extern int vo_depthonscreen;
extern int vo_screenwidth;
extern int vo_screenheight;
// requested resolution/bpp: (-x -y -bpp options)
extern int vo_dwidth;
extern int vo_dheight;
extern int vo_dbpp;
extern int vo_doublebuffering;
extern int vo_fsmode;
extern int vo_pts;
extern float vo_fps;
extern char *vo_subdevice;
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