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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 59 | pj | 1 | /* $Id: ss_vb.c,v 1.1 2003-02-28 11:54:35 pj Exp $ */ |
| 2 | |||
| 3 | /* |
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| 4 | * Mesa 3-D graphics library |
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| 5 | * Version: 4.1 |
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| 6 | * |
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| 7 | * Copyright (C) 1999-2002 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 | * Authors: |
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| 27 | * Keith Whitwell <keith@tungstengraphics.com> |
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| 28 | */ |
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| 29 | |||
| 30 | #include "glheader.h" |
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| 31 | #include "colormac.h" |
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| 32 | #include "context.h" |
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| 33 | #include "macros.h" |
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| 34 | #include "imports.h" |
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| 35 | |||
| 36 | #include "swrast/swrast.h" |
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| 37 | #include "tnl/t_context.h" |
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| 38 | #include "math/m_vector.h" |
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| 39 | #include "math/m_translate.h" |
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| 40 | |||
| 41 | #include "ss_context.h" |
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| 42 | #include "ss_vb.h" |
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| 43 | |||
| 44 | static void do_import( struct vertex_buffer *VB, |
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| 45 | struct gl_client_array *to, |
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| 46 | struct gl_client_array *from ) |
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| 47 | { |
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| 48 | GLuint count = VB->Count; |
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| 49 | |||
| 50 | if (!to->Ptr) { |
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| 51 | to->Ptr = ALIGN_MALLOC( VB->Size * 4 * sizeof(GLchan), 32 ); |
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| 52 | to->Type = CHAN_TYPE; |
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| 53 | } |
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| 54 | |||
| 55 | /* No need to transform the same value 3000 times. |
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| 56 | */ |
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| 57 | if (!from->StrideB) { |
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| 58 | to->StrideB = 0; |
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| 59 | count = 1; |
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| 60 | } |
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| 61 | else |
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| 62 | to->StrideB = 4 * sizeof(GLchan); |
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| 63 | |||
| 64 | _math_trans_4chan( (GLchan (*)[4]) to->Ptr, |
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| 65 | from->Ptr, |
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| 66 | from->StrideB, |
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| 67 | from->Type, |
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| 68 | from->Size, |
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| 69 | 0, |
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| 70 | count); |
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| 71 | } |
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| 72 | |||
| 73 | static void import_float_colors( GLcontext *ctx ) |
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| 74 | { |
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| 75 | struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; |
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| 76 | struct gl_client_array *to = &SWSETUP_CONTEXT(ctx)->ChanColor; |
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| 77 | do_import( VB, to, VB->ColorPtr[0] ); |
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| 78 | VB->ColorPtr[0] = to; |
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| 79 | } |
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| 80 | |||
| 81 | static void import_float_spec_colors( GLcontext *ctx ) |
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| 82 | { |
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| 83 | struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; |
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| 84 | struct gl_client_array *to = &SWSETUP_CONTEXT(ctx)->ChanSecondaryColor; |
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| 85 | do_import( VB, to, VB->SecondaryColorPtr[0] ); |
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| 86 | VB->SecondaryColorPtr[0] = to; |
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| 87 | } |
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| 88 | |||
| 89 | |||
| 90 | /* Provides a RasterSetup function which prebuilds vertices for the |
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| 91 | * software rasterizer. This is required for the triangle functions |
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| 92 | * in this module, but not the rest of the swrast module. |
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| 93 | */ |
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| 94 | |||
| 95 | |||
| 96 | #define COLOR 0x1 |
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| 97 | #define INDEX 0x2 |
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| 98 | #define TEX0 0x4 |
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| 99 | #define MULTITEX 0x8 |
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| 100 | #define SPEC 0x10 |
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| 101 | #define FOG 0x20 |
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| 102 | #define POINT 0x40 |
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| 103 | #define MAX_SETUPFUNC 0x80 |
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| 104 | |||
| 105 | static setup_func setup_tab[MAX_SETUPFUNC]; |
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| 106 | static interp_func interp_tab[MAX_SETUPFUNC]; |
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| 107 | static copy_pv_func copy_pv_tab[MAX_SETUPFUNC]; |
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| 108 | |||
| 109 | |||
| 110 | #define IND (0) |
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| 111 | #define TAG(x) x##_none |
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| 112 | #include "ss_vbtmp.h" |
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| 113 | |||
| 114 | #define IND (COLOR) |
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| 115 | #define TAG(x) x##_color |
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| 116 | #include "ss_vbtmp.h" |
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| 117 | |||
| 118 | #define IND (COLOR|SPEC) |
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| 119 | #define TAG(x) x##_color_spec |
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| 120 | #include "ss_vbtmp.h" |
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| 121 | |||
| 122 | #define IND (COLOR|FOG) |
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| 123 | #define TAG(x) x##_color_fog |
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| 124 | #include "ss_vbtmp.h" |
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| 125 | |||
| 126 | #define IND (COLOR|SPEC|FOG) |
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| 127 | #define TAG(x) x##_color_spec_fog |
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| 128 | #include "ss_vbtmp.h" |
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| 129 | |||
| 130 | #define IND (COLOR|TEX0) |
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| 131 | #define TAG(x) x##_color_tex0 |
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| 132 | #include "ss_vbtmp.h" |
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| 133 | |||
| 134 | #define IND (COLOR|TEX0|SPEC) |
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| 135 | #define TAG(x) x##_color_tex0_spec |
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| 136 | #include "ss_vbtmp.h" |
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| 137 | |||
| 138 | #define IND (COLOR|TEX0|FOG) |
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| 139 | #define TAG(x) x##_color_tex0_fog |
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| 140 | #include "ss_vbtmp.h" |
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| 141 | |||
| 142 | #define IND (COLOR|TEX0|SPEC|FOG) |
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| 143 | #define TAG(x) x##_color_tex0_spec_fog |
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| 144 | #include "ss_vbtmp.h" |
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| 145 | |||
| 146 | #define IND (COLOR|MULTITEX) |
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| 147 | #define TAG(x) x##_color_multitex |
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| 148 | #include "ss_vbtmp.h" |
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| 149 | |||
| 150 | #define IND (COLOR|MULTITEX|SPEC) |
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| 151 | #define TAG(x) x##_color_multitex_spec |
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| 152 | #include "ss_vbtmp.h" |
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| 153 | |||
| 154 | #define IND (COLOR|MULTITEX|FOG) |
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| 155 | #define TAG(x) x##_color_multitex_fog |
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| 156 | #include "ss_vbtmp.h" |
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| 157 | |||
| 158 | #define IND (COLOR|MULTITEX|SPEC|FOG) |
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| 159 | #define TAG(x) x##_color_multitex_spec_fog |
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| 160 | #include "ss_vbtmp.h" |
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| 161 | |||
| 162 | #define IND (COLOR|POINT) |
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| 163 | #define TAG(x) x##_color_point |
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| 164 | #include "ss_vbtmp.h" |
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| 165 | |||
| 166 | #define IND (COLOR|SPEC|POINT) |
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| 167 | #define TAG(x) x##_color_spec_point |
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| 168 | #include "ss_vbtmp.h" |
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| 169 | |||
| 170 | #define IND (COLOR|FOG|POINT) |
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| 171 | #define TAG(x) x##_color_fog_point |
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| 172 | #include "ss_vbtmp.h" |
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| 173 | |||
| 174 | #define IND (COLOR|SPEC|FOG|POINT) |
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| 175 | #define TAG(x) x##_color_spec_fog_point |
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| 176 | #include "ss_vbtmp.h" |
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| 177 | |||
| 178 | #define IND (COLOR|TEX0|POINT) |
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| 179 | #define TAG(x) x##_color_tex0_point |
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| 180 | #include "ss_vbtmp.h" |
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| 181 | |||
| 182 | #define IND (COLOR|TEX0|SPEC|POINT) |
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| 183 | #define TAG(x) x##_color_tex0_spec_point |
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| 184 | #include "ss_vbtmp.h" |
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| 185 | |||
| 186 | #define IND (COLOR|TEX0|FOG|POINT) |
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| 187 | #define TAG(x) x##_color_tex0_fog_point |
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| 188 | #include "ss_vbtmp.h" |
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| 189 | |||
| 190 | #define IND (COLOR|TEX0|SPEC|FOG|POINT) |
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| 191 | #define TAG(x) x##_color_tex0_spec_fog_point |
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| 192 | #include "ss_vbtmp.h" |
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| 193 | |||
| 194 | #define IND (COLOR|MULTITEX|POINT) |
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| 195 | #define TAG(x) x##_color_multitex_point |
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| 196 | #include "ss_vbtmp.h" |
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| 197 | |||
| 198 | #define IND (COLOR|MULTITEX|SPEC|POINT) |
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| 199 | #define TAG(x) x##_color_multitex_spec_point |
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| 200 | #include "ss_vbtmp.h" |
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| 201 | |||
| 202 | #define IND (COLOR|MULTITEX|FOG|POINT) |
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| 203 | #define TAG(x) x##_color_multitex_fog_point |
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| 204 | #include "ss_vbtmp.h" |
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| 205 | |||
| 206 | #define IND (COLOR|MULTITEX|SPEC|FOG|POINT) |
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| 207 | #define TAG(x) x##_color_multitex_spec_fog_point |
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| 208 | #include "ss_vbtmp.h" |
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| 209 | |||
| 210 | #define IND (INDEX) |
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| 211 | #define TAG(x) x##_index |
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| 212 | #include "ss_vbtmp.h" |
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| 213 | |||
| 214 | #define IND (INDEX|FOG) |
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| 215 | #define TAG(x) x##_index_fog |
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| 216 | #include "ss_vbtmp.h" |
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| 217 | |||
| 218 | #define IND (INDEX|POINT) |
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| 219 | #define TAG(x) x##_index_point |
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| 220 | #include "ss_vbtmp.h" |
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| 221 | |||
| 222 | #define IND (INDEX|FOG|POINT) |
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| 223 | #define TAG(x) x##_index_fog_point |
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| 224 | #include "ss_vbtmp.h" |
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| 225 | |||
| 226 | |||
| 227 | /*********************************************************************** |
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| 228 | * Additional setup and interp for back color and edgeflag. |
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| 229 | ***********************************************************************/ |
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| 230 | |||
| 231 | #define GET_COLOR(ptr, idx) (((GLchan (*)[4])((ptr)->Ptr))[idx]) |
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| 232 | |||
| 233 | static void interp_extras( GLcontext *ctx, |
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| 234 | GLfloat t, |
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| 235 | GLuint dst, GLuint out, GLuint in, |
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| 236 | GLboolean force_boundary ) |
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| 237 | { |
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| 238 | struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; |
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| 239 | |||
| 240 | if (VB->ColorPtr[1]) { |
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| 241 | INTERP_4CHAN( t, |
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| 242 | GET_COLOR(VB->ColorPtr[1], dst), |
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| 243 | GET_COLOR(VB->ColorPtr[1], out), |
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| 244 | GET_COLOR(VB->ColorPtr[1], in) ); |
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| 245 | |||
| 246 | if (VB->SecondaryColorPtr[1]) { |
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| 247 | INTERP_3CHAN( t, |
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| 248 | GET_COLOR(VB->SecondaryColorPtr[1], dst), |
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| 249 | GET_COLOR(VB->SecondaryColorPtr[1], out), |
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| 250 | GET_COLOR(VB->SecondaryColorPtr[1], in) ); |
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| 251 | } |
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| 252 | } |
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| 253 | else if (VB->IndexPtr[1]) { |
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| 254 | VB->IndexPtr[1]->data[dst] = (GLuint) (GLint) |
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| 255 | LINTERP( t, |
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| 256 | (GLfloat) VB->IndexPtr[1]->data[out], |
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| 257 | (GLfloat) VB->IndexPtr[1]->data[in] ); |
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| 258 | } |
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| 259 | |||
| 260 | if (VB->EdgeFlag) { |
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| 261 | VB->EdgeFlag[dst] = VB->EdgeFlag[out] || force_boundary; |
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| 262 | } |
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| 263 | |||
| 264 | interp_tab[SWSETUP_CONTEXT(ctx)->SetupIndex](ctx, t, dst, out, in, |
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| 265 | force_boundary); |
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| 266 | } |
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| 267 | |||
| 268 | static void copy_pv_extras( GLcontext *ctx, GLuint dst, GLuint src ) |
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| 269 | { |
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| 270 | struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; |
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| 271 | |||
| 272 | if (VB->ColorPtr[1]) { |
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| 273 | COPY_CHAN4( GET_COLOR(VB->ColorPtr[1], dst), |
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| 274 | GET_COLOR(VB->ColorPtr[1], src) ); |
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| 275 | |||
| 276 | if (VB->SecondaryColorPtr[1]) { |
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| 277 | COPY_3V( GET_COLOR(VB->SecondaryColorPtr[1], dst), |
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| 278 | GET_COLOR(VB->SecondaryColorPtr[1], src) ); |
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| 279 | } |
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| 280 | } |
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| 281 | else if (VB->IndexPtr[1]) { |
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| 282 | VB->IndexPtr[1]->data[dst] = VB->IndexPtr[1]->data[src]; |
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| 283 | } |
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| 284 | |||
| 285 | copy_pv_tab[SWSETUP_CONTEXT(ctx)->SetupIndex](ctx, dst, src); |
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| 286 | } |
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| 287 | |||
| 288 | |||
| 289 | |||
| 290 | |||
| 291 | /*********************************************************************** |
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| 292 | * Initialization |
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| 293 | ***********************************************************************/ |
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| 294 | |||
| 295 | static void |
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| 296 | emit_invalid( GLcontext *ctx, GLuint start, GLuint end, GLuint newinputs ) |
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| 297 | { |
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| 298 | _mesa_debug(ctx, "swrast_setup: invalid setup function\n"); |
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| 299 | (void) (ctx && start && end && newinputs); |
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| 300 | } |
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| 301 | |||
| 302 | |||
| 303 | static void |
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| 304 | interp_invalid( GLcontext *ctx, GLfloat t, |
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| 305 | GLuint edst, GLuint eout, GLuint ein, |
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| 306 | GLboolean force_boundary ) |
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| 307 | { |
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| 308 | _mesa_debug(ctx, "swrast_setup: invalid interp function\n"); |
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| 309 | (void) (ctx && t && edst && eout && ein && force_boundary); |
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| 310 | } |
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| 311 | |||
| 312 | |||
| 313 | static void |
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| 314 | copy_pv_invalid( GLcontext *ctx, GLuint edst, GLuint esrc ) |
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| 315 | { |
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| 316 | _mesa_debug(ctx, "swrast_setup: invalid copy_pv function\n"); |
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| 317 | (void) (ctx && edst && esrc ); |
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| 318 | } |
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| 319 | |||
| 320 | |||
| 321 | static void init_standard( void ) |
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| 322 | { |
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| 323 | GLuint i; |
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| 324 | |||
| 325 | for (i = 0 ; i < Elements(setup_tab) ; i++) { |
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| 326 | setup_tab[i] = emit_invalid; |
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| 327 | interp_tab[i] = interp_invalid; |
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| 328 | copy_pv_tab[i] = copy_pv_invalid; |
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| 329 | } |
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| 330 | |||
| 331 | init_none(); |
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| 332 | init_color(); |
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| 333 | init_color_spec(); |
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| 334 | init_color_fog(); |
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| 335 | init_color_spec_fog(); |
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| 336 | init_color_tex0(); |
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| 337 | init_color_tex0_spec(); |
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| 338 | init_color_tex0_fog(); |
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| 339 | init_color_tex0_spec_fog(); |
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| 340 | init_color_multitex(); |
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| 341 | init_color_multitex_spec(); |
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| 342 | init_color_multitex_fog(); |
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| 343 | init_color_multitex_spec_fog(); |
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| 344 | init_color_point(); |
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| 345 | init_color_spec_point(); |
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| 346 | init_color_fog_point(); |
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| 347 | init_color_spec_fog_point(); |
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| 348 | init_color_tex0_point(); |
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| 349 | init_color_tex0_spec_point(); |
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| 350 | init_color_tex0_fog_point(); |
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| 351 | init_color_tex0_spec_fog_point(); |
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| 352 | init_color_multitex_point(); |
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| 353 | init_color_multitex_spec_point(); |
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| 354 | init_color_multitex_fog_point(); |
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| 355 | init_color_multitex_spec_fog_point(); |
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| 356 | init_index(); |
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| 357 | init_index_fog(); |
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| 358 | init_index_point(); |
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| 359 | init_index_fog_point(); |
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| 360 | } |
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| 361 | |||
| 362 | |||
| 363 | /* debug only */ |
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| 364 | #if 0 |
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| 365 | static void |
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| 366 | printSetupFlags(const GLcontext *ctx, char *msg, GLuint flags ) |
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| 367 | { |
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| 368 | _mesa_debug(ctx, "%s(%x): %s%s%s%s%s%s%s\n", |
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| 369 | msg, |
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| 370 | (int) flags, |
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| 371 | (flags & COLOR) ? "color, " : "", |
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| 372 | (flags & INDEX) ? "index, " : "", |
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| 373 | (flags & TEX0) ? "tex0, " : "", |
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| 374 | (flags & MULTITEX) ? "multitex, " : "", |
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| 375 | (flags & SPEC) ? "spec, " : "", |
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| 376 | (flags & FOG) ? "fog, " : "", |
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| 377 | (flags & POINT) ? "point, " : ""); |
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| 378 | } |
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| 379 | #endif |
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| 380 | |||
| 381 | void |
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| 382 | _swsetup_choose_rastersetup_func(GLcontext *ctx) |
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| 383 | { |
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| 384 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
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| 385 | TNLcontext *tnl = TNL_CONTEXT(ctx); |
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| 386 | int funcindex = 0; |
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| 387 | |||
| 388 | if (ctx->RenderMode == GL_RENDER) { |
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| 389 | if (ctx->Visual.rgbMode) { |
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| 390 | funcindex = COLOR; |
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| 391 | |||
| 392 | if (ctx->Texture._EnabledUnits > 1) |
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| 393 | funcindex |= MULTITEX; /* a unit above unit[0] is enabled */ |
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| 394 | else if (ctx->Texture._EnabledUnits == 1) |
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| 395 | funcindex |= TEX0; /* only unit 0 is enabled */ |
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| 396 | |||
| 397 | if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR) |
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| 398 | funcindex |= SPEC; |
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| 399 | } |
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| 400 | else { |
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| 401 | funcindex = INDEX; |
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| 402 | } |
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| 403 | |||
| 404 | if (ctx->Point._Attenuated || |
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| 405 | (ctx->VertexProgram.Enabled && ctx->VertexProgram.PointSizeEnabled)) |
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| 406 | funcindex |= POINT; |
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| 407 | |||
| 408 | if (ctx->Fog.Enabled) |
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| 409 | funcindex |= FOG; |
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| 410 | } |
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| 411 | else if (ctx->RenderMode == GL_FEEDBACK) { |
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| 412 | if (ctx->Visual.rgbMode) |
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| 413 | funcindex = (COLOR | TEX0); /* is feedback color subject to fogging? */ |
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| 414 | else |
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| 415 | funcindex = INDEX; |
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| 416 | } |
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| 417 | else |
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| 418 | funcindex = 0; |
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| 419 | |||
| 420 | swsetup->SetupIndex = funcindex; |
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| 421 | tnl->Driver.Render.BuildVertices = setup_tab[funcindex]; |
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| 422 | |||
| 423 | if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) { |
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| 424 | tnl->Driver.Render.Interp = interp_extras; |
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| 425 | tnl->Driver.Render.CopyPV = copy_pv_extras; |
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| 426 | } |
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| 427 | else { |
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| 428 | tnl->Driver.Render.Interp = interp_tab[funcindex]; |
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| 429 | tnl->Driver.Render.CopyPV = copy_pv_tab[funcindex]; |
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| 430 | } |
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| 431 | |||
| 432 | ASSERT(tnl->Driver.Render.BuildVertices); |
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| 433 | ASSERT(tnl->Driver.Render.BuildVertices != emit_invalid); |
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| 434 | } |
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| 435 | |||
| 436 | |||
| 437 | void |
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| 438 | _swsetup_vb_init( GLcontext *ctx ) |
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| 439 | { |
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| 440 | (void) ctx; |
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| 441 | init_standard(); |
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| 442 | /* |
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| 443 | printSetupFlags(ctx); |
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| 444 | */ |
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| 445 | } |
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| 446 |