/*      $NetBSD: video_subr.h,v 1.5 2008/04/28 20:23:48 martin Exp $    */

/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#define LEGAL_CLUT_INDEX(x)     ((x) >= 0 && (x) <= 255)
#define RGB24(r, g, b)          ((((r) << 16) & 0x00ff0000) |           \
                                (((g) << 8) & 0x0000ff00) |            \
                                (((b)) & 0x000000ff))

int cmap_work_alloc(u_int8_t **, u_int8_t **, u_int8_t **, u_int32_t **, int);
void cmap_work_free(u_int8_t *, u_int8_t *, u_int8_t *, u_int32_t *);
void rgb24_compose(u_int32_t *, u_int8_t *, u_int8_t *, u_int8_t *, int);
void rgb24_decompose(u_int32_t *, u_int8_t *, u_int8_t *, u_int8_t *, int);

/* debug function */
struct video_chip;
struct video_chip {
       void *vc_v; /* CPU/chipset dependent goo */

       vaddr_t vc_fbvaddr;
       paddr_t vc_fbpaddr;
       size_t vc_fbsize;
       int vc_fbdepth;
       int vc_fbwidth;
       int vc_fbheight;
       int vc_reverse;

       void (*vc_drawline)(struct video_chip *, int, int, int, int);
       void (*vc_drawdot)(struct video_chip *, int, int);
};

void video_attach_drawfunc(struct video_chip *);
void video_line(struct video_chip *, int, int, int, int);
void video_dot(struct video_chip *, int, int);
void video_calibration_pattern(struct video_chip *);
int video_reverse_color(void);