1 /* $OpenBSD: rasops.h,v 1.8 2006/11/29 19:08:22 miod Exp $ */ 2 /* $NetBSD: rasops.h,v 1.13 2000/06/13 13:36:54 ad Exp $ */ 3 4 /*- 5 * Copyright (c) 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Andrew Doran. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #ifndef _RASOPS_H_ 41 #define _RASOPS_H_ 1 42 43 #ifdef SMALL_KERNEL 44 #define RASOPS_SMALL 45 #endif 46 47 #include "rasops_glue.h" 48 49 struct wsdisplay_font; 50 51 /* For rasops_info::ri_flg */ 52 #define RI_FULLCLEAR 0x0001 /* eraserows() hack to clear full screen */ 53 #define RI_FORCEMONO 0x0002 /* monochrome output even if we can do color */ 54 #define RI_BSWAP 0x0004 /* framebuffer endianness doesn't match CPU */ 55 #define RI_CURSOR 0x0008 /* cursor is switched on */ 56 #define RI_CLEAR 0x0010 /* clear display on startup */ 57 #define RI_CLEARMARGINS 0x0020 /* clear display margins on startup */ 58 #define RI_CENTER 0x0040 /* center onscreen output */ 59 #define RI_CURSORCLIP 0x0080 /* cursor is currently clipped */ 60 #define RI_ROTATE_CW 0x0100 /* display is rotated, quarter clockwise */ 61 #define RI_CFGDONE 0x0200 /* rasops_reconfig() completed successfully */ 62 63 struct rasops_info { 64 /* These must be filled in by the caller */ 65 int ri_depth; /* depth in bits */ 66 u_char *ri_bits; /* ptr to bits */ 67 int ri_width; /* width (pels) */ 68 int ri_height; /* height (pels) */ 69 int ri_stride; /* stride in bytes */ 70 71 /* 72 * These can optionally be left zeroed out. If you fill ri_font, 73 * but aren't using wsfont, set ri_wsfcookie to -1. 74 */ 75 struct wsdisplay_font *ri_font; 76 int ri_wsfcookie; /* wsfont cookie */ 77 void *ri_hw; /* driver private data; ignored by rasops */ 78 int ri_crow; /* cursor row */ 79 int ri_ccol; /* cursor column */ 80 int ri_flg; /* various operational flags */ 81 82 /* 83 * These are optional and will default if zero. Meaningless 84 * on depths other than 15, 16, 24 and 32 bits per pel. On 85 * 24 bit displays, ri_{r,g,b}num must be 8. 86 */ 87 u_char ri_rnum; /* number of bits for red */ 88 u_char ri_gnum; /* number of bits for green */ 89 u_char ri_bnum; /* number of bits for blue */ 90 u_char ri_rpos; /* which bit red starts at */ 91 u_char ri_gpos; /* which bit green starts at */ 92 u_char ri_bpos; /* which bit blue starts at */ 93 94 /* These are filled in by rasops_init() */ 95 int ri_emuwidth; /* width we actually care about */ 96 int ri_emuheight; /* height we actually care about */ 97 int ri_emustride; /* bytes per row we actually care about */ 98 int ri_rows; /* number of rows (characters, not pels) */ 99 int ri_cols; /* number of columns (characters, not pels) */ 100 int ri_delta; /* row delta in bytes */ 101 int ri_pelbytes; /* bytes per pel (may be zero) */ 102 int ri_fontscale; /* fontheight * fontstride */ 103 int ri_xscale; /* fontwidth * pelbytes */ 104 int ri_yscale; /* fontheight * stride */ 105 u_char *ri_origbits; /* where screen bits actually start */ 106 int ri_xorigin; /* where ri_bits begins (x) */ 107 int ri_yorigin; /* where ri_bits begins (y) */ 108 int32_t ri_devcmap[16]; /* color -> framebuffer data */ 109 110 /* The emulops you need to use, and the screen caps for wscons */ 111 struct wsdisplay_emulops ri_ops; 112 int ri_caps; 113 114 /* Callbacks so we can share some code */ 115 void (*ri_do_cursor)(struct rasops_info *); 116 void (*ri_updatecursor)(struct rasops_info *); 117 118 #if NRASOPS_ROTATION > 0 119 /* Used to intercept putchar to permit display rotation */ 120 struct wsdisplay_emulops ri_real_ops; 121 #endif 122 }; 123 124 #define DELTA(p, d, cast) ((p) = (cast)((caddr_t)(p) + (d))) 125 126 /* 127 * rasops_init(). 128 * 129 * Integer parameters are the number of rows and columns we'd *like*. 130 * 131 * In terms of optimization, fonts that are a multiple of 8 pixels wide 132 * work the best. 133 * 134 * rasops_init() takes care of rasops_reconfig(). The parameters to both 135 * are the same. If calling rasops_reconfig() to change the font and 136 * ri_wsfcookie >= 0, you must call wsfont_unlock() on it, and reset it 137 * to -1 (or a new, valid cookie). 138 */ 139 140 /* 141 * Per-depth initialization functions. These should not be called outside 142 * the rasops code. 143 */ 144 void rasops1_init(struct rasops_info *); 145 void rasops2_init(struct rasops_info *); 146 void rasops4_init(struct rasops_info *); 147 void rasops8_init(struct rasops_info *); 148 void rasops15_init(struct rasops_info *); 149 void rasops24_init(struct rasops_info *); 150 void rasops32_init(struct rasops_info *); 151 152 /* rasops.c */ 153 int rasops_init(struct rasops_info *, int, int); 154 int rasops_reconfig(struct rasops_info *, int, int); 155 void rasops_eraserows(void *, int, int, long); 156 void rasops_erasecols(void *, int, int, int, long); 157 158 extern const u_char rasops_isgray[16]; 159 extern const u_char rasops_cmap[256*3]; 160 161 #endif /* _RASOPS_H_ */ 162