grfabs_reg.h revision 1.6
1 /* $NetBSD: grfabs_reg.h,v 1.6 1996/03/10 11:42:38 leo Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Leo Weppelman 5 * Copyright (c) 1994 Christian E. Hopps 6 * All rights reserved. 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Christian E. Hopps. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef _GRFABS_REG_H 34 #define _GRFABS_REG_H 35 36 #include <atari/dev/grfabs_fal.h> 37 38 struct point { 39 long x; 40 long y; 41 }; 42 typedef struct point point_t; 43 44 struct dimension { 45 u_long width; 46 u_long height; 47 }; 48 typedef struct dimension dimen_t; 49 50 struct box { 51 long x; 52 long y; 53 u_long width; 54 u_long height; 55 }; 56 typedef struct box box_t; 57 58 struct rectangle { 59 long left; 60 long top; 61 long right; 62 long bottom; 63 }; 64 typedef struct rectangle rect_t; 65 66 typedef struct bitmap bmap_t; 67 typedef struct colormap colormap_t; 68 typedef struct display_mode dmode_t; 69 70 /* 71 * View stuff. 72 */ 73 74 struct view { 75 bmap_t *bitmap; /* bitmap. */ 76 box_t display; /* viewable area. */ 77 dmode_t *mode; /* the mode for this view */ 78 colormap_t *colormap; /* the colormap for this view */ 79 int flags; 80 }; 81 typedef struct view view_t; 82 83 /* View-flags: */ 84 #define VF_DISPLAY 1 /* view is on the air now */ 85 86 /* 87 * Bitmap stuff. 88 */ 89 struct bitmap { 90 u_short bytes_per_row; /* number of bytes per display row. */ 91 u_short rows; /* number of display rows. */ 92 u_short depth; /* depth of bitmap. */ 93 u_char *plane; /* plane data for bitmap. */ 94 u_char *hw_address; /* mappable bitplane pointer. */ 95 }; 96 97 /* 98 * Colormap stuff. 99 */ 100 struct colormap { 101 u_char type; /* what type of entries these are. */ 102 union { 103 u_char grey; /* CM_GREYSCALE */ 104 struct { /* CM_COLOR */ 105 u_char red; 106 u_char green; 107 u_char blue; 108 } rgb_mask; 109 } valid_mask; 110 u_short first; /* color register entry[0] refers to */ 111 u_short size; /* number of entries */ 112 u_long *entry; /* the table of actual color values */ 113 }; 114 115 /* 116 * Mask short-hands 117 */ 118 #define grey_mask valid_mask.grey 119 #define red_mask valid_mask.rgb_mask.red 120 #define green_mask valid_mask.rgb_mask.green 121 #define blue_mask valid_mask.rgb_mask.blue 122 123 enum colormap_type { 124 CM_MONO, /* only on or off allowed */ 125 CM_GREYSCALE, /* grey values */ 126 CM_COLOR /* RGB values */ 127 }; 128 129 #define MAX_CENTRIES 256 /* that all there is */ 130 /* 131 * Create a colormap entry 132 */ 133 #define MAKE_COLOR_ENTRY(r,g,b) (((r & 0xff)<<16)|((g & 0xff)<<8)|(b & 0xff)) 134 #define MAKE_MONO_ENTRY(x) ((x) ? 1 : 0) 135 #define MAKE_GREY_ENTRY(l) (l & 0xff) 136 137 #define CM_L2TT(v) \ 138 (((0x000f0000 & (v)) >> 8) | ((0x00000f00 & (v)) >> 4) |\ 139 (0x0000000f & (v))) 140 #define CM_TT2L(v) \ 141 ((((0x00000f00 & (v)) * 0xff / 0xf) << 8) |\ 142 (((0x000000f0 & (v)) * 0xff / 0xf) << 4) |\ 143 (0x0000000f & (v)) * 0xff / 0xf) 144 #define CM_L2FAL(v) \ 145 (((0x003f0000 & (v)) << 10) | ((0x00003f00 & (v)) << 10) |\ 146 (0x0000003f & (v)) << 2) 147 #define CM_FAL2L(v) \ 148 (((((0xfc000000 & (v)) >> 10) * 0xff / 0x3f) & 0x00ff0000) |\ 149 ((((0x00fc0000 & (v)) >> 10) * 0xff / 0x3f) & 0x0000ff00) |\ 150 ((0x000000fc & (v)) >> 2) * 0xff / 0x3f) 151 #define CM_L2ST(v) \ 152 (((0x000e0000 & (v)) >> 9) | ((0x00000e00 & (v)) >> 5) |\ 153 (0x0000000e & (v)) >> 1) 154 #define CM_ST2L(v) \ 155 (((((0x00000700 & (v)) * 0xff / 0x7) << 8) & 0x00ff0000) |\ 156 ((((0x00000070 & (v)) * 0xff / 0x7) << 4) & 0x0000ff00) |\ 157 (0x00000007 & (v)) * 0xff / 0x7) 158 159 struct grfabs_sw { 160 void (*display_view) __P((view_t*)); 161 view_t * (*alloc_view) __P((dmode_t *, dimen_t *, u_char)); 162 void (*free_view) __P((view_t *)); 163 void (*remove_view) __P((view_t *)); 164 int (*use_colormap) __P((view_t *, colormap_t *)); 165 }; 166 167 /* display mode */ 168 struct display_mode { 169 LIST_ENTRY(display_mode) link; 170 u_char *name; /* logical name for mode. */ 171 dimen_t size; /* screen size */ 172 u_char depth; /* screen depth */ 173 union { 174 u_short tt_reg; /* video mode register tt */ 175 struct { 176 u_short fal_mode; /* falcon mode */ 177 struct videl *fal_regs; /* videl register values */ 178 } fal_vid; 179 } video_mode; 180 struct grfabs_sw *grfabs_funcs; /* hardware switch table */ 181 view_t *current_view; /* view displaying me */ 182 }; 183 184 #define vm_reg video_mode.tt_reg 185 #define vm_mode video_mode.fal_vid.fal_mode 186 #define vm_regs video_mode.fal_vid.fal_regs 187 188 /* 189 * Definition of available graphic mode list. 190 */ 191 typedef LIST_HEAD(modelist, display_mode) MODES; 192 193 /* 194 * Misc draw related macros. 195 */ 196 #define INIT_BOX(b,xx,yy,ww,hh) \ 197 do { \ 198 (b)->x = xx; \ 199 (b)->y = yy; \ 200 (b)->width = ww; \ 201 (b)->height = hh; \ 202 } while(0) 203 204 205 /* 206 * Common variables 207 */ 208 extern view_t gra_con_view; 209 extern colormap_t gra_con_cmap; 210 extern long gra_con_colors[MAX_CENTRIES]; 211 extern u_long gra_def_color16[16]; 212 213 /* 214 * Prototypes: 215 */ 216 #ifdef FALCON_VIDEO 217 void falcon_probe_video __P((MODES *)); 218 #endif /* FALCON_VIDEO */ 219 #ifdef TT_VIDEO 220 void tt_probe_video __P((MODES *)); 221 #endif /* TT_VIDEO */ 222 223 view_t *grf_alloc_view __P((dmode_t *d, dimen_t *dim, u_char depth)); 224 dmode_t *grf_get_best_mode __P((dimen_t *dim, u_char depth)); 225 void grf_display_view __P((view_t *v)); 226 void grf_remove_view __P((view_t *v)); 227 void grf_free_view __P((view_t *v)); 228 int grf_get_colormap __P((view_t *, colormap_t *)); 229 int grf_use_colormap __P((view_t *, colormap_t *)); 230 231 #endif /* _GRFABS_REG_H */ 232
Indexes created Fri Sep 26 08:10:20 GMT 2025