| 1 | /* -*- mode: C; tab-width:8; c-basic-offset:2 -*- */
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| 2 |
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| 3 | /*
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| 4 | * Mesa 3-D graphics library
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| 5 | * Version: 3.3
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| 6 | *
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| 7 | * Copyright (C) 1999 Brian Paul All Rights Reserved.
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 10 | * copy of this software and associated documentation files (the "Software"),
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| 11 | * to deal in the Software without restriction, including without limitation
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the
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| 14 | * Software is furnished to do so, subject to the following conditions:
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| 15 | *
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| 16 | * The above copyright notice and this permission notice shall be included
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| 17 | * in all copies or substantial portions of the Software.
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| 18 | *
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 25 | *
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| 26 | *
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| 27 | * Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
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| 28 | * terms stated above.
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| 29 | *
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| 30 | * Thank you for your contribution, David!
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| 31 | *
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| 32 | * Please make note of the above copyright/license statement. If you
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| 33 | * contributed code or bug fixes to this code under the previous (GNU
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| 34 | * Library) license and object to the new license, your code will be
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| 35 | * removed at your request. Please see the Mesa docs/COPYRIGHT file
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| 36 | * for more information.
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| 37 | *
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| 38 | * Additional Mesa/3Dfx driver developers:
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| 39 | * Daryll Strauss <daryll@precisioninsight.com>
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| 40 | * Keith Whitwell <keith@precisioninsight.com>
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| 41 | *
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| 42 | * See fxapi.h for more revision/author details.
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| 43 | */
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| 44 |
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| 45 |
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| 46 | /* fxtris.c - 3Dfx VooDoo triangle functions */
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| 47 |
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| 48 |
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| 49 | #ifdef HAVE_CONFIG_H
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| 50 | #include "conf.h"
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| 51 | #endif
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| 52 |
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| 53 | #if defined(FX)
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| 54 |
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| 55 | #include "fxdrv.h"
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| 56 | #include "../mmath.h"
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| 57 |
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| 58 |
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| 59 |
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| 60 | /* Is this enough? Do we need more triangle funcs?
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| 61 | */
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| 62 | static triangle_func tri_tab[0x40]; /* only 0x20 actually used */
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| 63 | static quad_func quad_tab[0x40]; /* only 0x20 actually used */
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| 64 | static line_func line_tab[0x40]; /* less than 0x20 used */
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| 65 | static points_func points_tab[0x40]; /* less than 0x20 used */
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| 66 |
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| 67 | #define IND (0)
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| 68 | #define TAG(x) x
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| 69 | #include "fxtritmp.h"
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| 70 |
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| 71 | #define IND (FX_OFFSET)
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| 72 | #define TAG(x) x##_offset
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| 73 | #include "fxtritmp.h"
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| 74 |
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| 75 | #define IND (FX_TWOSIDE)
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| 76 | #define TAG(x) x##_twoside
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| 77 | #include "fxtritmp.h"
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| 78 |
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| 79 | #define IND (FX_TWOSIDE|FX_OFFSET)
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| 80 | #define TAG(x) x##_twoside_offset
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| 81 | #include "fxtritmp.h"
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| 82 |
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| 83 | #define IND (FX_FRONT_BACK)
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| 84 | #define TAG(x) x##_front_back
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| 85 | #include "fxtritmp.h"
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| 86 |
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| 87 | #define IND (FX_FRONT_BACK|FX_OFFSET)
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| 88 | #define TAG(x) x##_front_back_offset
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| 89 | #include "fxtritmp.h"
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| 90 |
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| 91 | #define IND (FX_FRONT_BACK|FX_TWOSIDE)
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| 92 | #define TAG(x) x##_front_back_twoside
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| 93 | #include "fxtritmp.h"
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| 94 |
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| 95 | #define IND (FX_FRONT_BACK|FX_TWOSIDE|FX_OFFSET)
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| 96 | #define TAG(x) x##_front_back_twoside_offset
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| 97 | #include "fxtritmp.h"
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| 98 |
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| 99 | #define IND (FX_FLAT)
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| 100 | #define TAG(x) x##_flat
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| 101 | #include "fxtritmp.h"
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| 102 |
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| 103 | #define IND (FX_FLAT|FX_OFFSET)
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| 104 | #define TAG(x) x##_flat_offset
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| 105 | #include "fxtritmp.h"
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| 106 |
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| 107 | #define IND (FX_FLAT|FX_TWOSIDE)
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| 108 | #define TAG(x) x##_flat_twoside
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| 109 | #include "fxtritmp.h"
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| 110 |
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| 111 | #define IND (FX_FLAT|FX_TWOSIDE|FX_OFFSET)
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| 112 | #define TAG(x) x##_flat_twoside_offset
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| 113 | #include "fxtritmp.h"
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| 114 |
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| 115 | #define IND (FX_FLAT|FX_FRONT_BACK)
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| 116 | #define TAG(x) x##_flat_front_back
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| 117 | #include "fxtritmp.h"
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| 118 |
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| 119 | #define IND (FX_FLAT|FX_FRONT_BACK|FX_OFFSET)
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| 120 | #define TAG(x) x##_flat_front_back_offset
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| 121 | #include "fxtritmp.h"
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| 122 |
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| 123 | #define IND (FX_FLAT|FX_FRONT_BACK|FX_TWOSIDE)
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| 124 | #define TAG(x) x##_flat_front_back_twoside
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| 125 | #include "fxtritmp.h"
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| 126 |
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| 127 | #define IND (FX_FLAT|FX_FRONT_BACK|FX_TWOSIDE|FX_OFFSET)
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| 128 | #define TAG(x) x##_flat_front_back_twoside_offset
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| 129 | #include "fxtritmp.h"
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| 130 |
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| 131 | /* We don't actually do antialiasing correctly. Geometry has to be
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| 132 | sorted for glide's antialiasing to operate */
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| 133 | #if 0
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| 134 | #define IND (FX_ANTIALIAS)
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| 135 | #define TAG(x) x##_aa
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| 136 | #include "fxtritmp.h"
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| 137 |
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| 138 | #define IND (FX_ANTIALIAS|FX_OFFSET)
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| 139 | #define TAG(x) x##_aa_offset
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| 140 | #include "fxtritmp.h"
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| 141 |
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| 142 | #define IND (FX_ANTIALIAS|FX_TWOSIDE)
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| 143 | #define TAG(x) x##_aa_twoside
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| 144 | #include "fxtritmp.h"
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| 145 |
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| 146 | #define IND (FX_ANTIALIAS|FX_TWOSIDE|FX_OFFSET)
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| 147 | #define TAG(x) x##_aa_twoside_offset
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| 148 | #include "fxtritmp.h"
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| 149 |
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| 150 | #define IND (FX_ANTIALIAS|FX_FRONT_BACK)
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| 151 | #define TAG(x) x##_aa_front_back
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| 152 | #include "fxtritmp.h"
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| 153 |
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| 154 | #define IND (FX_ANTIALIAS|FX_FRONT_BACK|FX_OFFSET)
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| 155 | #define TAG(x) x##_aa_front_back_offset
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| 156 | #include "fxtritmp.h"
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| 157 |
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| 158 | #define IND (FX_ANTIALIAS|FX_FRONT_BACK|FX_TWOSIDE)
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| 159 | #define TAG(x) x##_aa_front_back_twoside
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| 160 | #include "fxtritmp.h"
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| 161 |
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| 162 | #define IND (FX_ANTIALIAS|FX_FRONT_BACK|FX_TWOSIDE|FX_OFFSET)
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| 163 | #define TAG(x) x##_aa_front_back_twoside_offset
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| 164 | #include "fxtritmp.h"
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| 165 |
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| 166 | #define IND (FX_ANTIALIAS|FX_FLAT)
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| 167 | #define TAG(x) x##_aa_flat
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| 168 | #include "fxtritmp.h"
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| 169 |
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| 170 | #define IND (FX_ANTIALIAS|FX_FLAT|FX_OFFSET)
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| 171 | #define TAG(x) x##_aa_flat_offset
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| 172 | #include "fxtritmp.h"
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| 173 |
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| 174 | #define IND (FX_ANTIALIAS|FX_FLAT|FX_TWOSIDE)
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| 175 | #define TAG(x) x##_aa_flat_twoside
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| 176 | #include "fxtritmp.h"
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| 177 |
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| 178 | #define IND (FX_ANTIALIAS|FX_FLAT|FX_TWOSIDE|FX_OFFSET)
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| 179 | #define TAG(x) x##_aa_flat_twoside_offset
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| 180 | #include "fxtritmp.h"
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| 181 |
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| 182 | #define IND (FX_ANTIALIAS|FX_FLAT|FX_FRONT_BACK)
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| 183 | #define TAG(x) x##_aa_flat_front_back
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| 184 | #include "fxtritmp.h"
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| 185 |
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| 186 | #define IND (FX_ANTIALIAS|FX_FLAT|FX_FRONT_BACK|FX_OFFSET)
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| 187 | #define TAG(x) x##_aa_flat_front_back_offset
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| 188 | #include "fxtritmp.h"
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| 189 |
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| 190 | #define IND (FX_ANTIALIAS|FX_FLAT|FX_FRONT_BACK|FX_TWOSIDE)
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| 191 | #define TAG(x) x##_aa_flat_front_back_twoside
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| 192 | #include "fxtritmp.h"
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| 193 |
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| 194 | #define IND (FX_ANTIALIAS|FX_FLAT|FX_FRONT_BACK|FX_TWOSIDE|FX_OFFSET)
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| 195 | #define TAG(x) x##_aa_flat_front_back_twoside_offset
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| 196 | #include "fxtritmp.h"
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| 197 | #endif
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| 198 |
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| 199 | void fxDDTrifuncInit()
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| 200 | {
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| 201 | init();
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| 202 | init_offset();
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| 203 | init_twoside();
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| 204 | init_twoside_offset();
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| 205 | init_front_back();
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| 206 | init_front_back_offset();
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| 207 | init_front_back_twoside();
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| 208 | init_front_back_twoside_offset();
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| 209 | init_flat();
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| 210 | init_flat_offset();
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| 211 | init_flat_twoside();
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| 212 | init_flat_twoside_offset();
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| 213 | init_flat_front_back();
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| 214 | init_flat_front_back_offset();
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| 215 | init_flat_front_back_twoside();
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| 216 | init_flat_front_back_twoside_offset();
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| 217 | #if 0
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| 218 | init_aa();
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| 219 | init_aa_offset();
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| 220 | init_aa_twoside();
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| 221 | init_aa_twoside_offset();
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| 222 | init_aa_front_back();
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| 223 | init_aa_front_back_offset();
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| 224 | init_aa_front_back_twoside();
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| 225 | init_aa_front_back_twoside_offset();
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| 226 | init_aa_flat();
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| 227 | init_aa_flat_offset();
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| 228 | init_aa_flat_twoside();
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| 229 | init_aa_flat_twoside_offset();
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| 230 | init_aa_flat_front_back();
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| 231 | init_aa_flat_front_back_offset();
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| 232 | init_aa_flat_front_back_twoside();
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| 233 | init_aa_flat_front_back_twoside_offset();
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| 234 | #endif
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| 235 | }
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| 236 |
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| 237 | void fxPrintRenderState( const char *msg, GLuint state )
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| 238 | {
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| 239 | fprintf(stderr, "%s: (%x) %s%s%s%s%s%s\n",
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| 240 | msg, state,
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| 241 | (state & FX_ANTIALIAS) ? "antialias, " : "",
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| 242 | (state & FX_FLAT) ? "flat, " : "",
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| 243 | (state & FX_TWOSIDE) ? "twoside, " : "",
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| 244 | (state & FX_OFFSET) ? "offset, " : "",
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| 245 | (state & FX_FRONT_BACK) ? "front-back, " : "",
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| 246 | (state & FX_FALLBACK) ? "fallback" : "");
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| 247 | }
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| 248 |
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| 249 |
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| 250 | void fxPrintHintState( const char *msg, GLuint state )
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| 251 | {
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| 252 | fprintf(stderr, "%s: (%x) %s %s%s %s%s\n",
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| 253 | msg, state,
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| 254 | (state & GR_STWHINT_W_DIFF_FBI) ? "w-fbi, " : "",
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| 255 | (state & GR_STWHINT_W_DIFF_TMU0) ? "w-tmu0, " : "",
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| 256 | (state & GR_STWHINT_ST_DIFF_TMU0) ? "st-tmu0, " : "",
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| 257 | (state & GR_STWHINT_W_DIFF_TMU1) ? "w-tmu1, " : "",
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| 258 | (state & GR_STWHINT_ST_DIFF_TMU1) ? "st-tmu1, " : "");
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| 259 |
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| 260 | }
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| 261 |
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| 262 |
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| 263 | void fxDDChooseRenderState( GLcontext *ctx )
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| 264 | {
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| 265 | fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
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| 266 | GLuint ind = 0;
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| 267 | GLuint flags = ctx->TriangleCaps;
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| 268 |
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| 269 | ctx->IndirectTriangles &= ~DD_SW_RASTERIZE;
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| 270 |
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| 271 | if (flags) {
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| 272 | if (fxMesa->render_index & FX_OFFSET)
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| 273 | FX_grDepthBiasLevel(0);
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| 274 |
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| 275 | if (flags & (DD_SELECT|DD_FEEDBACK)) {
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| 276 | fxMesa->PointsFunc = 0;
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| 277 | fxMesa->LineFunc = 0;
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| 278 | fxMesa->TriangleFunc = 0;
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| 279 | fxMesa->QuadFunc = 0;
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| 280 | fxMesa->render_index = FX_FALLBACK;
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| 281 | ctx->IndirectTriangles |= DD_SW_RASTERIZE;
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| 282 | #if 0
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| 283 | fprintf(stderr, "Fallback select|feeback\n");
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| 284 | #endif
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| 285 | return;
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| 286 | }
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| 287 |
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| 288 | if (flags & DD_FLATSHADE) ind |= FX_FLAT;
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| 289 | if (flags & DD_TRI_LIGHT_TWOSIDE) ind |= FX_TWOSIDE;
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| 290 | if (flags & DD_MULTIDRAW) ind |= FX_FRONT_BACK;
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| 291 | if (flags & (DD_POINT_ATTEN|DD_POINT_SMOOTH)) {
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| 292 | ind |= FX_FALLBACK;
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| 293 | #if 0
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| 294 | if (flags&DD_POINT_ATTEN)
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| 295 | fprintf(stderr, "Fallback point atten\n");
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| 296 | if (flags&DD_POINT_SMOOTH)
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| 297 | fprintf(stderr, "Fallback point smooth\n");
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| 298 | #endif
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| 299 | }
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| 300 |
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| 301 | fxMesa->render_index = ind;
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| 302 | fxMesa->PointsFunc = points_tab[ind];
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| 303 | if (ind&FX_FALLBACK)
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| 304 | ctx->IndirectTriangles |= DD_POINT_SW_RASTERIZE;
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| 305 | ind &= ~(FX_ANTIALIAS|FX_FALLBACK);
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| 306 |
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| 307 | if (flags & (DD_LINE_STIPPLE|DD_LINE_SMOOTH)) {
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| 308 | ind |= FX_FALLBACK;
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| 309 | #if 0
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| 310 | if (flags&DD_LINE_STIPPLE)
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| 311 | fprintf(stderr, "Fallback line stipple\n");
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| 312 | if (flags&DD_LINE_SMOOTH)
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| 313 | fprintf(stderr, "Fallback line smooth\n");
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| 314 | #endif
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| 315 | }
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| 316 |
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| 317 | fxMesa->render_index |= ind;
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| 318 | fxMesa->LineFunc = line_tab[ind];
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| 319 | if (ind&FX_FALLBACK)
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| 320 | ctx->IndirectTriangles |= DD_LINE_SW_RASTERIZE;
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| 321 | ind &= ~(FX_ANTIALIAS|FX_FALLBACK);
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| 322 |
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| 323 | if (flags & DD_TRI_OFFSET) ind |= FX_OFFSET;
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| 324 | if (flags & (DD_TRI_UNFILLED|DD_TRI_STIPPLE|DD_TRI_SMOOTH)) {
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| 325 | ind |= FX_FALLBACK;
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| 326 | #if 0
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| 327 | if (flags&DD_TRI_UNFILLED)
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| 328 | fprintf(stderr, "Fallback tri unfilled\n");
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| 329 | if (flags&DD_TRI_STIPPLE)
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| 330 | fprintf(stderr, "Fallback tri stippled\n");
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| 331 | if (flags&DD_TRI_SMOOTH)
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| 332 | fprintf(stderr, "Fallback tri smooth\n");
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| 333 | #endif
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| 334 | }
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| 335 |
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| 336 | fxMesa->render_index |= ind;
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| 337 | fxMesa->TriangleFunc = tri_tab[ind];
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| 338 | fxMesa->QuadFunc = quad_tab[ind];
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| 339 |
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| 340 | if (ind&FX_FALLBACK)
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| 341 | ctx->IndirectTriangles |= DD_TRI_SW_RASTERIZE | DD_QUAD_SW_RASTERIZE;
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| 342 | }
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| 343 | else if (fxMesa->render_index)
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| 344 | {
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| 345 | if (fxMesa->render_index & FX_OFFSET)
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| 346 | FX_grDepthBiasLevel(0);
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| 347 |
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| 348 | fxMesa->render_index = 0;
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| 349 | fxMesa->PointsFunc = points_tab[0];
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| 350 | fxMesa->LineFunc = line_tab[0];
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| 351 | fxMesa->TriangleFunc = tri_tab[0];
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| 352 | fxMesa->QuadFunc = quad_tab[0];
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| 353 | }
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| 354 |
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| 355 | if (MESA_VERBOSE&(VERBOSE_STATE|VERBOSE_DRIVER))
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| 356 | fxPrintRenderState("fxmesa: Render state", fxMesa->render_index);
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| 357 | }
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| 358 |
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| 359 | #else
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| 360 |
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| 361 |
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| 362 | /*
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| 363 | * Need this to provide at least one external definition.
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| 364 | */
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| 365 |
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| 366 | extern int gl_fx_dummy_function_tris(void);
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| 367 | int gl_fx_dummy_function_tris(void)
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| 368 | {
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| 369 | return 0;
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| 370 | }
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| 371 |
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| 372 | #endif /* FX */
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