[sdl_omap.git] / src / video / fbcon / SDL_fbvideo.h

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifndef _SDL_fbvideo_h
#define _SDL_fbvideo_h

#include <sys/types.h>
#include <termios.h>
#include <linux/fb.h>

#include "SDL_mouse.h"
#include "SDL_mutex.h"
#include "../SDL_sysvideo.h"
#if SDL_INPUT_TSLIB
#include "tslib.h"
#endif

/* Hidden "this" pointer for the video functions */
#define _THIS	SDL_VideoDevice *this

typedef void FB_bitBlit(
		Uint8 *src_pos,
		int src_right_delta,	/* pixels, not bytes */
		int src_down_delta,		/* pixels, not bytes */
		Uint8 *dst_pos,
		int dst_linebytes,
		int width,
		int height);

/* This is the structure we use to keep track of video memory */
typedef struct vidmem_bucket {
	struct vidmem_bucket *prev;
	int used;
	int dirty;
	char *base;
	unsigned int size;
	struct vidmem_bucket *next;
} vidmem_bucket;

/* Private display data */
struct SDL_PrivateVideoData {
	int console_fd;
	struct fb_var_screeninfo cache_vinfo;
	struct fb_var_screeninfo saved_vinfo;
	int saved_cmaplen;
	__u16 *saved_cmap;

	int current_vt;
	int saved_vt;
	int keyboard_fd;
	int saved_kbd_mode;
	struct termios saved_kbd_termios;

	int mouse_fd;
#if SDL_INPUT_TSLIB
	struct tsdev *ts_dev;
#endif

	char *mapped_mem;
	char *shadow_mem;
	int mapped_memlen;
	int mapped_offset;
	char *mapped_io;
	long mapped_iolen;
	int flip_page;
	char *flip_address[2];
	int rotate;
	int shadow_fb;				/* Tells whether a shadow is being used. */
	FB_bitBlit *blitFunc;
	int physlinebytes;			/* Length of a line in bytes in physical fb */

#define NUM_MODELISTS	4		/* 8, 16, 24, and 32 bits-per-pixel */
	int SDL_nummodes[NUM_MODELISTS];
	SDL_Rect **SDL_modelist[NUM_MODELISTS];

	vidmem_bucket surfaces;
	int surfaces_memtotal;
	int surfaces_memleft;

	SDL_mutex *hw_lock;
	int switched_away;
	struct fb_var_screeninfo screen_vinfo;
	Uint32 screen_arealen;
	Uint8 *screen_contents;
	__u16  screen_palette[3*256];

	void (*wait_vbl)(_THIS);
	void (*wait_idle)(_THIS);
};
/* Old variable names */
#define console_fd		(this->hidden->console_fd)
#define current_vt		(this->hidden->current_vt)
#define saved_vt		(this->hidden->saved_vt)
#define keyboard_fd		(this->hidden->keyboard_fd)
#define saved_kbd_mode		(this->hidden->saved_kbd_mode)
#define saved_kbd_termios	(this->hidden->saved_kbd_termios)
#define mouse_fd		(this->hidden->mouse_fd)
#if SDL_INPUT_TSLIB
#define ts_dev			(this->hidden->ts_dev)
#endif
#define cache_vinfo		(this->hidden->cache_vinfo)
#define saved_vinfo		(this->hidden->saved_vinfo)
#define saved_cmaplen		(this->hidden->saved_cmaplen)
#define saved_cmap		(this->hidden->saved_cmap)
#define mapped_mem		(this->hidden->mapped_mem)
#define shadow_mem		(this->hidden->shadow_mem)
#define mapped_memlen		(this->hidden->mapped_memlen)
#define mapped_offset		(this->hidden->mapped_offset)
#define mapped_io		(this->hidden->mapped_io)
#define mapped_iolen		(this->hidden->mapped_iolen)
#define flip_page		(this->hidden->flip_page)
#define flip_address		(this->hidden->flip_address)
#define rotate			(this->hidden->rotate)
#define shadow_fb		(this->hidden->shadow_fb)
#define blitFunc		(this->hidden->blitFunc)
#define physlinebytes		(this->hidden->physlinebytes)
#define SDL_nummodes		(this->hidden->SDL_nummodes)
#define SDL_modelist		(this->hidden->SDL_modelist)
#define surfaces		(this->hidden->surfaces)
#define surfaces_memtotal	(this->hidden->surfaces_memtotal)
#define surfaces_memleft	(this->hidden->surfaces_memleft)
#define hw_lock			(this->hidden->hw_lock)
#define switched_away		(this->hidden->switched_away)
#define screen_vinfo		(this->hidden->screen_vinfo)
#define screen_arealen		(this->hidden->screen_arealen)
#define screen_contents		(this->hidden->screen_contents)
#define screen_palette		(this->hidden->screen_palette)
#define wait_vbl		(this->hidden->wait_vbl)
#define wait_idle		(this->hidden->wait_idle)

/* Accelerator types that are supported by the driver, but are not
   necessarily in the kernel headers on the system we compile on.
*/
#ifndef FB_ACCEL_MATROX_MGAG400
#define FB_ACCEL_MATROX_MGAG400	26	/* Matrox G400			*/
#endif
#ifndef FB_ACCEL_3DFX_BANSHEE
#define FB_ACCEL_3DFX_BANSHEE	31	/* 3Dfx Banshee			*/
#endif

/* These functions are defined in SDL_fbvideo.c */
extern void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area);
extern void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area);

/* These are utility functions for working with video surfaces */

static __inline__ void FB_AddBusySurface(SDL_Surface *surface)
{
	((vidmem_bucket *)surface->hwdata)->dirty = 1;
}

static __inline__ int FB_IsSurfaceBusy(SDL_Surface *surface)
{
	return ((vidmem_bucket *)surface->hwdata)->dirty;
}

static __inline__ void FB_WaitBusySurfaces(_THIS)
{
	vidmem_bucket *bucket;

	/* Wait for graphic operations to complete */
	wait_idle(this);

	/* Clear all surface dirty bits */
	for ( bucket=&surfaces; bucket; bucket=bucket->next ) {
		bucket->dirty = 0;
	}
}

static __inline__ void FB_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y)
{
	*x = (long)((char *)dst->pixels - mapped_mem)%this->screen->pitch;
	*y = (long)((char *)dst->pixels - mapped_mem)/this->screen->pitch;
	if ( dst == this->screen ) {
		*x += this->offset_x;
		*y += this->offset_y;
	}
}

#endif /* _SDL_fbvideo_h */
Commit	Line	Data
e14743d1	1	/*
	2	SDL - Simple DirectMedia Layer
	3	Copyright (C) 1997-2009 Sam Lantinga
	4
	5	This library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	This library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with this library; if not, write to the Free Software
	17	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18
	19	Sam Lantinga
	20	slouken@libsdl.org
	21	*/
	22	#include "SDL_config.h"
	23
	24	#ifndef _SDL_fbvideo_h
	25	#define _SDL_fbvideo_h
	26
	27	#include <sys/types.h>
	28	#include <termios.h>
	29	#include <linux/fb.h>
	30
	31	#include "SDL_mouse.h"
	32	#include "SDL_mutex.h"
	33	#include "../SDL_sysvideo.h"
	34	#if SDL_INPUT_TSLIB
	35	#include "tslib.h"
	36	#endif
	37
	38	/* Hidden "this" pointer for the video functions */
	39	#define _THIS SDL_VideoDevice *this
	40
	41	typedef void FB_bitBlit(
	42	Uint8 *src_pos,
	43	int src_right_delta, /* pixels, not bytes */
	44	int src_down_delta, /* pixels, not bytes */
	45	Uint8 *dst_pos,
	46	int dst_linebytes,
	47	int width,
	48	int height);
	49
	50	/* This is the structure we use to keep track of video memory */
	51	typedef struct vidmem_bucket {
	52	struct vidmem_bucket *prev;
	53	int used;
	54	int dirty;
	55	char *base;
	56	unsigned int size;
	57	struct vidmem_bucket *next;
	58	} vidmem_bucket;
	59
	60	/* Private display data */
	61	struct SDL_PrivateVideoData {
	62	int console_fd;
	63	struct fb_var_screeninfo cache_vinfo;
	64	struct fb_var_screeninfo saved_vinfo;
65	int saved_cmaplen;
66	__u16 *saved_cmap;
67
68	int current_vt;
69	int saved_vt;
70	int keyboard_fd;
71	int saved_kbd_mode;
72	struct termios saved_kbd_termios;
73
74	int mouse_fd;
75	#if SDL_INPUT_TSLIB
76	struct tsdev *ts_dev;
77	#endif
78
79	char *mapped_mem;
80	char *shadow_mem;
81	int mapped_memlen;
82	int mapped_offset;
83	char *mapped_io;
84	long mapped_iolen;
85	int flip_page;
86	char *flip_address[2];
87	int rotate;
88	int shadow_fb; /* Tells whether a shadow is being used. */
89	FB_bitBlit *blitFunc;
90	int physlinebytes; /* Length of a line in bytes in physical fb */
91
92	#define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */
93	int SDL_nummodes[NUM_MODELISTS];
94	SDL_Rect **SDL_modelist[NUM_MODELISTS];
95
96	vidmem_bucket surfaces;
97	int surfaces_memtotal;
98	int surfaces_memleft;
99
100	SDL_mutex *hw_lock;
101	int switched_away;
102	struct fb_var_screeninfo screen_vinfo;
103	Uint32 screen_arealen;
104	Uint8 *screen_contents;
105	__u16 screen_palette[3*256];
106
107	void (*wait_vbl)(_THIS);
108	void (*wait_idle)(_THIS);
109	};
110	/* Old variable names */
111	#define console_fd (this->hidden->console_fd)
112	#define current_vt (this->hidden->current_vt)
113	#define saved_vt (this->hidden->saved_vt)
114	#define keyboard_fd (this->hidden->keyboard_fd)
115	#define saved_kbd_mode (this->hidden->saved_kbd_mode)
116	#define saved_kbd_termios (this->hidden->saved_kbd_termios)
117	#define mouse_fd (this->hidden->mouse_fd)
118	#if SDL_INPUT_TSLIB
119	#define ts_dev (this->hidden->ts_dev)
120	#endif
121	#define cache_vinfo (this->hidden->cache_vinfo)
122	#define saved_vinfo (this->hidden->saved_vinfo)
123	#define saved_cmaplen (this->hidden->saved_cmaplen)
124	#define saved_cmap (this->hidden->saved_cmap)
125	#define mapped_mem (this->hidden->mapped_mem)
126	#define shadow_mem (this->hidden->shadow_mem)
127	#define mapped_memlen (this->hidden->mapped_memlen)
128	#define mapped_offset (this->hidden->mapped_offset)
129	#define mapped_io (this->hidden->mapped_io)
130	#define mapped_iolen (this->hidden->mapped_iolen)
131	#define flip_page (this->hidden->flip_page)
132	#define flip_address (this->hidden->flip_address)
133	#define rotate (this->hidden->rotate)
134	#define shadow_fb (this->hidden->shadow_fb)
135	#define blitFunc (this->hidden->blitFunc)
136	#define physlinebytes (this->hidden->physlinebytes)
137	#define SDL_nummodes (this->hidden->SDL_nummodes)
138	#define SDL_modelist (this->hidden->SDL_modelist)
139	#define surfaces (this->hidden->surfaces)
140	#define surfaces_memtotal (this->hidden->surfaces_memtotal)
141	#define surfaces_memleft (this->hidden->surfaces_memleft)
142	#define hw_lock (this->hidden->hw_lock)
143	#define switched_away (this->hidden->switched_away)
144	#define screen_vinfo (this->hidden->screen_vinfo)
145	#define screen_arealen (this->hidden->screen_arealen)
146	#define screen_contents (this->hidden->screen_contents)
147	#define screen_palette (this->hidden->screen_palette)
148	#define wait_vbl (this->hidden->wait_vbl)
149	#define wait_idle (this->hidden->wait_idle)
150
151	/* Accelerator types that are supported by the driver, but are not
152	necessarily in the kernel headers on the system we compile on.
153	*/
154	#ifndef FB_ACCEL_MATROX_MGAG400
155	#define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */
156	#endif
157	#ifndef FB_ACCEL_3DFX_BANSHEE
158	#define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */
159	#endif
160
161	/* These functions are defined in SDL_fbvideo.c */
162	extern void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area);
163	extern void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area);
164
165	/* These are utility functions for working with video surfaces */
166
167	static __inline__ void FB_AddBusySurface(SDL_Surface *surface)
168	{
169	((vidmem_bucket *)surface->hwdata)->dirty = 1;
170	}
171
172	static __inline__ int FB_IsSurfaceBusy(SDL_Surface *surface)
173	{
174	return ((vidmem_bucket *)surface->hwdata)->dirty;
175	}
176
177	static __inline__ void FB_WaitBusySurfaces(_THIS)
178	{
179	vidmem_bucket *bucket;
180
181	/* Wait for graphic operations to complete */
182	wait_idle(this);
183
184	/* Clear all surface dirty bits */
185	for ( bucket=&surfaces; bucket; bucket=bucket->next ) {
186	bucket->dirty = 0;
187	}
188	}
189
190	static __inline__ void FB_dst_to_xy(_THIS, SDL_Surface dst, int x, int *y)
191	{
192	x = (long)((char )dst->pixels - mapped_mem)%this->screen->pitch;
193	y = (long)((char )dst->pixels - mapped_mem)/this->screen->pitch;
194	if ( dst == this->screen ) {
195	*x += this->offset_x;
196	*y += this->offset_y;
197	}
198	}
199
200	#endif /* _SDL_fbvideo_h */