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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 <stdarg.h>
#include "font_load.h"
#include "img_format.h"
#include "../vidix/vidix.h"
#define VO_EVENT_EXPOSE 1
#define VO_EVENT_RESIZE 2
#define VO_EVENT_KEYPRESS 4
/* takes a pointer to a vo_vaa_s struct */
#define VOCTRL_QUERY_VAA 1
/* takes a pointer to uint32_t fourcc */
#define VOCTRL_QUERY_FORMAT 2
/* signal a device reset (seek/pause) */
#define VOCTRL_RESET 3
/* true if vo driver can use GUI created windows */
#define VOCTRL_GUISUPPORT 4
/* used to switch to fullscreen */
#define VOCTRL_FULLSCREEN 5
#define VO_TRUE 1
#define VO_FALSE 0
#define VO_ERROR -1
#define VO_NOTAVAIL -2
#define VO_NOTIMPL -3
#define VOFLAG_FULLSCREEN 0x01
#define VOFLAG_MODESWITCHING 0x02
#define VOFLAG_SWSCALE 0x04
#define VOFLAG_FLIPPING 0x08
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;
/* Direct access to BES */
typedef struct bes_da_s
{
vidix_rect_t dest; /* This field should be filled by x,y,w,h
from vidix:src but pitches from
vidix:dest */
int flags; /* Probably will work only when flag == 0 */
/* memory model */
unsigned frame_size; /* destination frame size */
unsigned num_frames; /* number of available frames */
unsigned offsets[VID_PLAY_MAXFRAMES]; /* relative offset of each frame from begin of video memory */
vidix_yuv_t offset; /* relative offsets within frame for yuv planes */
void* dga_addr; /* linear address of BES */
}bes_da_t;
/*
Video Accelearted Architecture.
Every field of this structure can be set to NULL that means that
features is not supported
*/
typedef struct vo_vaa_s
{
uint32_t flags; /* currently undefined */
/*
* Query Direct Access to BES
* info - information to be filled
* returns: 0 on success errno on error.
*/
int (*query_bes_da)(bes_da_t *info);
int (*get_video_eq)(vidix_video_eq_t *info);
int (*set_video_eq)(const vidix_video_eq_t *info);
int (*get_num_fx)(unsigned *info);
int (*get_oem_fx)(vidix_oem_fx_t *info);
int (*set_oem_fx)(const vidix_oem_fx_t *info);
int (*set_deint)(const vidix_deinterlace_t *info);
}vo_vaa_t;
/* Misc info to tuneup vo driver */
typedef struct vo_tune_info_s
{
int pitch[3]; /* Should be 0 if unknown else power of 2 */
}vo_tune_info_t;
typedef struct vo_functions_s
{
/*
* Preinitializes driver (real INITIALIZATION)
* arg - currently it's vo_subdevice
* returns: zero on successful initialization, non-zero on error.
*/
uint32_t (*preinit)(const char *arg);
/*
* Initialize (means CONFIGURE) 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 (*config)(uint32_t width, uint32_t height, uint32_t d_width,
uint32_t d_height, uint32_t fullscreen, char *title,
uint32_t format,const vo_tune_info_t *);
/*
* Control interface
*/
uint32_t (*control)(uint32_t request, void *data, ...);
/*
* 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[];
// correct 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_vsync;
extern int vo_fsmode;
extern int vo_pts;
extern float vo_fps;
extern char *vo_subdevice;
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