/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* 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.
*/
/* For rasops_info::ri_flg */
#define RI_FULLCLEAR 0x01 /* eraserows() hack to clear full screen */
#define RI_FORCEMONO 0x02 /* monochrome output even if we can do color */
#define RI_BSWAP 0x04 /* framebuffer endianness doesn't match CPU */
#define RI_CURSOR 0x08 /* cursor is switched on */
#define RI_CLEAR 0x10 /* clear display on startup */
#define RI_CENTER 0x20 /* center onscreen output */
#define RI_CURSORCLIP 0x40 /* cursor is currently clipped */
#define RI_CFGDONE 0x80 /* rasops_reconfig() completed successfully */
#define RI_ROTATE_CW 0x100 /* display is rotated, quarter clockwise */
#define RI_ROTATE_CCW 0x200 /* display is rotated, quarter counter-clockwise */
#define RI_ROTATE_UD 0x400 /* display is rotated, upside-down */
#define RI_ROTATE_MASK 0x700
/*
* if you call rasops_init() or rasops_reconfig() in a context where it is not
* safe to call kmem_alloc(), like early on during kernel startup, you MUST set
* RI_NO_AUTO to keep rasops from trying to allocate memory for autogenerated
* box drawing characters
*/
#define RI_NO_AUTO 0x800 /* do not generate box drawing characters */
/*
* Set this if your driver's putchar() method supports anti-aliased fonts in
* the given video mode. Without this flag rasops_init() will only ever pick
* monochrome bitmap fonts.
*/
#define RI_ENABLE_ALPHA 0x1000
/* set this in order to use r3g3b2 'true' colour in 8 bit */
#define RI_8BIT_IS_RGB 0x2000
/*
* drivers can set this to tell the font selection code that they'd rather
* use alpha fonts
*/
#define RI_PREFER_ALPHA 0x4000
/*
* Set this to prefer a wider font.
*/
#define RI_PREFER_WIDEFONT 0x8000
struct rasops_info {
/* These must be filled in by the caller */
int ri_depth; /* depth in bits */
uint8_t *ri_bits; /* ptr to bits */
int ri_width; /* width (pels) */
int ri_height; /* height (pels) */
int ri_stride; /* stride in bytes */
/*
* If you want shadow framebuffer support, point ri_hwbits
* to the real framebuffer, and ri_bits to the shadow framebuffer
*/
uint8_t *ri_hwbits;
/*
* These can optionally be left zeroed out. If you fill ri_font,
* but aren't using wsfont, set ri_wsfcookie to -1.
*/
struct wsdisplay_font *ri_font;
struct wsdisplay_font ri_optfont;
int ri_wsfcookie; /* wsfont cookie */
void *ri_hw; /* driver private data; ignored by rasops */
int ri_crow; /* cursor row */
int ri_ccol; /* cursor column */
int ri_flg; /* various operational flags */
/*
* These are optional and will default if zero. Meaningless
* on depths other than 15, 16, 24 and 32 bits per pel. On
* 24 bit displays, ri_{r,g,b}num must be 8.
*/
uint8_t ri_rnum; /* number of bits for red */
uint8_t ri_gnum; /* number of bits for green */
uint8_t ri_bnum; /* number of bits for blue */
uint8_t ri_rpos; /* which bit red starts at */
uint8_t ri_gpos; /* which bit green starts at */
uint8_t ri_bpos; /* which bit blue starts at */
/* These are filled in by rasops_init() */
int ri_emuwidth; /* width we actually care about */
int ri_emuheight; /* height we actually care about */
int ri_emustride; /* bytes per row we actually care about */
int ri_rows; /* number of rows (characters, not pels) */
int ri_cols; /* number of columns (characters, not pels) */
#if __NetBSD_Prereq__(9, 99, 1)
struct {
int off; /* offset of underline from bottom */
int height; /* height of underline */
} ri_ul;
#else
/*
* XXX
* hack to keep ABI compatibility for netbsd-9, -8, and -7.
*/
// int ri_delta; /* obsoleted */
struct {
short off;
short height;
} __packed ri_ul;
#endif
int ri_pelbytes; /* bytes per pel (may be zero) */
int ri_fontscale; /* fontheight * fontstride */
int ri_xscale; /* fontwidth * pelbytes */
int ri_yscale; /* fontheight * stride */
uint8_t *ri_origbits; /* where screen bits actually start */
uint8_t *ri_hworigbits; /* where hw bits actually start */
int ri_xorigin; /* where ri_bits begins (x) */
int ri_yorigin; /* where ri_bits begins (y) */
uint32_t
ri_devcmap[16]; /* color -> framebuffer data */
/* The emulops you need to use, and the screen caps for wscons */
struct wsdisplay_emulops ri_ops;
int ri_caps;
/* Callbacks so we can share some code */
void (*ri_do_cursor)(struct rasops_info *);
/* Used to intercept putchar to permit display rotation */
struct wsdisplay_emulops ri_real_ops;
};
/*
* rasops_init().
*
* Integer parameters are the number of rows and columns we'd *like*.
*
* In terms of optimization, fonts that are a multiple of 8 pixels wide
* work the best.
*
* rasops_init() takes care of rasops_reconfig(). The parameters to both
* are the same. If calling rasops_reconfig() to change the font and
* ri_wsfcookie >= 0, you must call wsfont_unlock() on it, and reset it
* to -1 (or a new, valid cookie).
*/
/* rasops.c */
int rasops_init(struct rasops_info *, int, int);
int rasops_reconfig(struct rasops_info *, int, int);
void rasops_unpack_attr(long, int *, int *, int *);
void rasops_eraserows(void *, int, int, long);
void rasops_erasecols(void *, int, int, int, long);
int rasops_get_cmap(struct rasops_info *, uint8_t *, size_t);
