Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 57 | pj | 1 | /* $Id: s_points.c,v 1.1 2003-02-28 11:49:42 pj Exp $ */ |
| 2 | |||
| 3 | /* |
||
| 4 | * Mesa 3-D graphics library |
||
| 5 | * Version: 4.1 |
||
| 6 | * |
||
| 7 | * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. |
||
| 8 | * |
||
| 9 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 10 | * copy of this software and associated documentation files (the "Software"), |
||
| 11 | * to deal in the Software without restriction, including without limitation |
||
| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
||
| 13 | * and/or sell copies of the Software, and to permit persons to whom the |
||
| 14 | * Software is furnished to do so, subject to the following conditions: |
||
| 15 | * |
||
| 16 | * The above copyright notice and this permission notice shall be included |
||
| 17 | * in all copies or substantial portions of the Software. |
||
| 18 | * |
||
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||
| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||
| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
||
| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
||
| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
||
| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 25 | */ |
||
| 26 | |||
| 27 | |||
| 28 | #include "glheader.h" |
||
| 29 | #include "colormac.h" |
||
| 30 | #include "context.h" |
||
| 31 | #include "macros.h" |
||
| 32 | #include "mmath.h" |
||
| 33 | #include "texstate.h" |
||
| 34 | #include "s_context.h" |
||
| 35 | #include "s_feedback.h" |
||
| 36 | #include "s_points.h" |
||
| 37 | #include "s_span.h" |
||
| 38 | |||
| 39 | |||
| 40 | |||
| 41 | #define RGBA 0x1 |
||
| 42 | #define INDEX 0x2 |
||
| 43 | #define SMOOTH 0x4 |
||
| 44 | #define TEXTURE 0x8 |
||
| 45 | #define SPECULAR 0x10 |
||
| 46 | #define LARGE 0x20 |
||
| 47 | #define ATTENUATE 0x40 |
||
| 48 | #define SPRITE 0x80 |
||
| 49 | |||
| 50 | |||
| 51 | /* |
||
| 52 | * CI points with size == 1.0 |
||
| 53 | */ |
||
| 54 | #define FLAGS (INDEX) |
||
| 55 | #define NAME size1_ci_point |
||
| 56 | #include "s_pointtemp.h" |
||
| 57 | |||
| 58 | |||
| 59 | /* |
||
| 60 | * General CI points. |
||
| 61 | */ |
||
| 62 | #define FLAGS (INDEX | LARGE) |
||
| 63 | #define NAME general_ci_point |
||
| 64 | #include "s_pointtemp.h" |
||
| 65 | |||
| 66 | |||
| 67 | /* |
||
| 68 | * Antialiased CI points. |
||
| 69 | */ |
||
| 70 | #define FLAGS (INDEX | SMOOTH) |
||
| 71 | #define NAME antialiased_ci_point |
||
| 72 | #include "s_pointtemp.h" |
||
| 73 | |||
| 74 | |||
| 75 | /* |
||
| 76 | * Distance attenuated, general CI points. |
||
| 77 | */ |
||
| 78 | #define FLAGS (INDEX | ATTENUATE) |
||
| 79 | #define NAME atten_general_ci_point |
||
| 80 | #include "s_pointtemp.h" |
||
| 81 | |||
| 82 | |||
| 83 | /* |
||
| 84 | * RGBA points with size == 1.0 |
||
| 85 | */ |
||
| 86 | #define FLAGS (RGBA) |
||
| 87 | #define NAME size1_rgba_point |
||
| 88 | #include "s_pointtemp.h" |
||
| 89 | |||
| 90 | |||
| 91 | /* |
||
| 92 | * General RGBA points. |
||
| 93 | */ |
||
| 94 | #define FLAGS (RGBA | LARGE) |
||
| 95 | #define NAME general_rgba_point |
||
| 96 | #include "s_pointtemp.h" |
||
| 97 | |||
| 98 | |||
| 99 | /* |
||
| 100 | * Antialiased RGBA points. |
||
| 101 | */ |
||
| 102 | #define FLAGS (RGBA | SMOOTH) |
||
| 103 | #define NAME antialiased_rgba_point |
||
| 104 | #include "s_pointtemp.h" |
||
| 105 | |||
| 106 | |||
| 107 | /* |
||
| 108 | * Textured RGBA points. |
||
| 109 | */ |
||
| 110 | #define FLAGS (RGBA | LARGE | TEXTURE | SPECULAR) |
||
| 111 | #define NAME textured_rgba_point |
||
| 112 | #include "s_pointtemp.h" |
||
| 113 | |||
| 114 | |||
| 115 | /* |
||
| 116 | * Antialiased points with texture mapping. |
||
| 117 | */ |
||
| 118 | #define FLAGS (RGBA | SMOOTH | TEXTURE | SPECULAR) |
||
| 119 | #define NAME antialiased_tex_rgba_point |
||
| 120 | #include "s_pointtemp.h" |
||
| 121 | |||
| 122 | |||
| 123 | /* |
||
| 124 | * Distance attenuated, general RGBA points. |
||
| 125 | */ |
||
| 126 | #define FLAGS (RGBA | ATTENUATE) |
||
| 127 | #define NAME atten_general_rgba_point |
||
| 128 | #include "s_pointtemp.h" |
||
| 129 | |||
| 130 | |||
| 131 | /* |
||
| 132 | * Distance attenuated, textured RGBA points. |
||
| 133 | */ |
||
| 134 | #define FLAGS (RGBA | ATTENUATE | TEXTURE | SPECULAR) |
||
| 135 | #define NAME atten_textured_rgba_point |
||
| 136 | #include "s_pointtemp.h" |
||
| 137 | |||
| 138 | |||
| 139 | /* |
||
| 140 | * Distance attenuated, antialiased points with or without texture mapping. |
||
| 141 | */ |
||
| 142 | #define FLAGS (RGBA | ATTENUATE | TEXTURE | SMOOTH) |
||
| 143 | #define NAME atten_antialiased_rgba_point |
||
| 144 | #include "s_pointtemp.h" |
||
| 145 | |||
| 146 | |||
| 147 | /* |
||
| 148 | * Sprite (textured point) |
||
| 149 | */ |
||
| 150 | #define FLAGS (RGBA | SPRITE) |
||
| 151 | #define NAME sprite_point |
||
| 152 | #include "s_pointtemp.h" |
||
| 153 | |||
| 154 | |||
| 155 | #define FLAGS (RGBA | ATTENUATE | SPRITE) |
||
| 156 | #define NAME atten_sprite_point |
||
| 157 | #include "s_pointtemp.h" |
||
| 158 | |||
| 159 | |||
| 160 | |||
| 161 | void _swrast_add_spec_terms_point( GLcontext *ctx, |
||
| 162 | const SWvertex *v0 ) |
||
| 163 | { |
||
| 164 | SWvertex *ncv0 = (SWvertex *)v0; |
||
| 165 | GLchan c[1][4]; |
||
| 166 | COPY_CHAN4( c[0], ncv0->color ); |
||
| 167 | ACC_3V( ncv0->color, ncv0->specular ); |
||
| 168 | SWRAST_CONTEXT(ctx)->SpecPoint( ctx, ncv0 ); |
||
| 169 | COPY_CHAN4( ncv0->color, c[0] ); |
||
| 170 | } |
||
| 171 | |||
| 172 | |||
| 173 | |||
| 174 | /* record the current point function name */ |
||
| 175 | #ifdef DEBUG |
||
| 176 | |||
| 177 | static const char *pntFuncName = NULL; |
||
| 178 | |||
| 179 | #define USE(pntFunc) \ |
||
| 180 | do { \ |
||
| 181 | pntFuncName = #pntFunc; \ |
||
| 182 | /*printf("%s\n", pntFuncName);*/ \ |
||
| 183 | swrast->Point = pntFunc; \ |
||
| 184 | } while (0) |
||
| 185 | |||
| 186 | #else |
||
| 187 | |||
| 188 | #define USE(pntFunc) swrast->Point = pntFunc |
||
| 189 | |||
| 190 | #endif |
||
| 191 | |||
| 192 | |||
| 193 | /* |
||
| 194 | * Examine the current context to determine which point drawing function |
||
| 195 | * should be used. |
||
| 196 | */ |
||
| 197 | void |
||
| 198 | _swrast_choose_point( GLcontext *ctx ) |
||
| 199 | { |
||
| 200 | SWcontext *swrast = SWRAST_CONTEXT(ctx); |
||
| 201 | GLboolean rgbMode = ctx->Visual.rgbMode; |
||
| 202 | |||
| 203 | if (ctx->RenderMode==GL_RENDER) { |
||
| 204 | if (ctx->Point.PointSprite) { |
||
| 205 | /* GL_NV_point_sprite */ |
||
| 206 | /* XXX this might not be good enough */ |
||
| 207 | if (ctx->Point._Attenuated) |
||
| 208 | USE(atten_sprite_point); |
||
| 209 | else |
||
| 210 | USE(sprite_point); |
||
| 211 | } |
||
| 212 | else if (ctx->Point.SmoothFlag) { |
||
| 213 | /* Smooth points */ |
||
| 214 | if (rgbMode) { |
||
| 215 | if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) { |
||
| 216 | USE(atten_antialiased_rgba_point); |
||
| 217 | } |
||
| 218 | else if (ctx->Texture._EnabledUnits) { |
||
| 219 | USE(antialiased_tex_rgba_point); |
||
| 220 | } |
||
| 221 | else { |
||
| 222 | USE(antialiased_rgba_point); |
||
| 223 | } |
||
| 224 | } |
||
| 225 | else { |
||
| 226 | USE(antialiased_ci_point); |
||
| 227 | } |
||
| 228 | } |
||
| 229 | else if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) { |
||
| 230 | if (rgbMode) { |
||
| 231 | if (ctx->Texture._EnabledUnits) { |
||
| 232 | if (ctx->Point.SmoothFlag) { |
||
| 233 | USE(atten_antialiased_rgba_point); |
||
| 234 | } |
||
| 235 | else { |
||
| 236 | USE(atten_textured_rgba_point); |
||
| 237 | } |
||
| 238 | } |
||
| 239 | else { |
||
| 240 | USE(atten_general_rgba_point); |
||
| 241 | } |
||
| 242 | } |
||
| 243 | else { |
||
| 244 | /* ci, atten */ |
||
| 245 | USE(atten_general_ci_point); |
||
| 246 | } |
||
| 247 | } |
||
| 248 | else if (ctx->Texture._EnabledUnits && rgbMode) { |
||
| 249 | /* textured */ |
||
| 250 | USE(textured_rgba_point); |
||
| 251 | } |
||
| 252 | else if (ctx->Point.Size != 1.0) { |
||
| 253 | /* large points */ |
||
| 254 | if (rgbMode) { |
||
| 255 | USE(general_rgba_point); |
||
| 256 | } |
||
| 257 | else { |
||
| 258 | USE(general_ci_point); |
||
| 259 | } |
||
| 260 | } |
||
| 261 | else { |
||
| 262 | /* single pixel points */ |
||
| 263 | if (rgbMode) { |
||
| 264 | USE(size1_rgba_point); |
||
| 265 | } |
||
| 266 | else { |
||
| 267 | USE(size1_ci_point); |
||
| 268 | } |
||
| 269 | } |
||
| 270 | } |
||
| 271 | else if (ctx->RenderMode==GL_FEEDBACK) { |
||
| 272 | USE(_mesa_feedback_point); |
||
| 273 | } |
||
| 274 | else { |
||
| 275 | /* GL_SELECT mode */ |
||
| 276 | USE(_mesa_select_point); |
||
| 277 | } |
||
| 278 | } |