| 1 | /* |
| 2 | * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) |
| 3 | * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice including the dates of first publication and |
| 13 | * either this permission notice or a reference to |
| 14 | * http://oss.sgi.com/projects/FreeB/ |
| 15 | * shall be included in all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 21 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| 22 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 23 | * SOFTWARE. |
| 24 | * |
| 25 | * Except as contained in this notice, the name of Silicon Graphics, Inc. |
| 26 | * shall not be used in advertising or otherwise to promote the sale, use or |
| 27 | * other dealings in this Software without prior written authorization from |
| 28 | * Silicon Graphics, Inc. |
| 29 | */ |
| 30 | |
| 31 | #include "glxserver.h" |
| 32 | #include "unpack.h" |
| 33 | #include "g_disptab.h" |
| 34 | |
| 35 | static GLint |
| 36 | __glEvalComputeK(GLenum target) |
| 37 | { |
| 38 | switch (target) { |
| 39 | case GL_MAP1_VERTEX_4: |
| 40 | case GL_MAP1_COLOR_4: |
| 41 | case GL_MAP1_TEXTURE_COORD_4: |
| 42 | case GL_MAP2_VERTEX_4: |
| 43 | case GL_MAP2_COLOR_4: |
| 44 | case GL_MAP2_TEXTURE_COORD_4: |
| 45 | return 4; |
| 46 | case GL_MAP1_VERTEX_3: |
| 47 | case GL_MAP1_TEXTURE_COORD_3: |
| 48 | case GL_MAP1_NORMAL: |
| 49 | case GL_MAP2_VERTEX_3: |
| 50 | case GL_MAP2_TEXTURE_COORD_3: |
| 51 | case GL_MAP2_NORMAL: |
| 52 | return 3; |
| 53 | case GL_MAP1_TEXTURE_COORD_2: |
| 54 | case GL_MAP2_TEXTURE_COORD_2: |
| 55 | return 2; |
| 56 | case GL_MAP1_TEXTURE_COORD_1: |
| 57 | case GL_MAP2_TEXTURE_COORD_1: |
| 58 | case GL_MAP1_INDEX: |
| 59 | case GL_MAP2_INDEX: |
| 60 | return 1; |
| 61 | default: |
| 62 | return 0; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | void |
| 67 | __glXDispSwap_Map1f(GLbyte * pc) |
| 68 | { |
| 69 | GLint order, k; |
| 70 | GLfloat u1, u2, *points; |
| 71 | GLenum target; |
| 72 | GLint compsize; |
| 73 | |
| 74 | __GLX_DECLARE_SWAP_VARIABLES; |
| 75 | __GLX_DECLARE_SWAP_ARRAY_VARIABLES; |
| 76 | |
| 77 | __GLX_SWAP_INT(pc + 0); |
| 78 | __GLX_SWAP_INT(pc + 12); |
| 79 | __GLX_SWAP_FLOAT(pc + 4); |
| 80 | __GLX_SWAP_FLOAT(pc + 8); |
| 81 | |
| 82 | target = *(GLenum *) (pc + 0); |
| 83 | order = *(GLint *) (pc + 12); |
| 84 | u1 = *(GLfloat *) (pc + 4); |
| 85 | u2 = *(GLfloat *) (pc + 8); |
| 86 | points = (GLfloat *) (pc + 16); |
| 87 | k = __glEvalComputeK(target); |
| 88 | |
| 89 | if (order <= 0 || k < 0) { |
| 90 | /* Erroneous command. */ |
| 91 | compsize = 0; |
| 92 | } |
| 93 | else { |
| 94 | compsize = order * k; |
| 95 | } |
| 96 | __GLX_SWAP_FLOAT_ARRAY(points, compsize); |
| 97 | |
| 98 | } |
| 99 | |
| 100 | void |
| 101 | __glXDispSwap_Map2f(GLbyte * pc) |
| 102 | { |
| 103 | GLint uorder, vorder, ustride, vstride, k; |
| 104 | GLfloat u1, u2, v1, v2, *points; |
| 105 | GLenum target; |
| 106 | GLint compsize; |
| 107 | |
| 108 | __GLX_DECLARE_SWAP_VARIABLES; |
| 109 | __GLX_DECLARE_SWAP_ARRAY_VARIABLES; |
| 110 | |
| 111 | __GLX_SWAP_INT(pc + 0); |
| 112 | __GLX_SWAP_INT(pc + 12); |
| 113 | __GLX_SWAP_INT(pc + 24); |
| 114 | __GLX_SWAP_FLOAT(pc + 4); |
| 115 | __GLX_SWAP_FLOAT(pc + 8); |
| 116 | __GLX_SWAP_FLOAT(pc + 16); |
| 117 | __GLX_SWAP_FLOAT(pc + 20); |
| 118 | |
| 119 | target = *(GLenum *) (pc + 0); |
| 120 | uorder = *(GLint *) (pc + 12); |
| 121 | vorder = *(GLint *) (pc + 24); |
| 122 | u1 = *(GLfloat *) (pc + 4); |
| 123 | u2 = *(GLfloat *) (pc + 8); |
| 124 | v1 = *(GLfloat *) (pc + 16); |
| 125 | v2 = *(GLfloat *) (pc + 20); |
| 126 | points = (GLfloat *) (pc + 28); |
| 127 | |
| 128 | k = __glEvalComputeK(target); |
| 129 | ustride = vorder * k; |
| 130 | vstride = k; |
| 131 | |
| 132 | if (vorder <= 0 || uorder <= 0 || k < 0) { |
| 133 | /* Erroneous command. */ |
| 134 | compsize = 0; |
| 135 | } |
| 136 | else { |
| 137 | compsize = uorder * vorder * k; |
| 138 | } |
| 139 | __GLX_SWAP_FLOAT_ARRAY(points, compsize); |
| 140 | |
| 141 | } |
| 142 | |
| 143 | void |
| 144 | __glXDispSwap_Map1d(GLbyte * pc) |
| 145 | { |
| 146 | GLint order, k, compsize; |
| 147 | GLenum target; |
| 148 | GLdouble u1, u2, *points; |
| 149 | |
| 150 | __GLX_DECLARE_SWAP_VARIABLES; |
| 151 | __GLX_DECLARE_SWAP_ARRAY_VARIABLES; |
| 152 | |
| 153 | __GLX_SWAP_DOUBLE(pc + 0); |
| 154 | __GLX_SWAP_DOUBLE(pc + 8); |
| 155 | __GLX_SWAP_INT(pc + 16); |
| 156 | __GLX_SWAP_INT(pc + 20); |
| 157 | |
| 158 | target = *(GLenum *) (pc + 16); |
| 159 | order = *(GLint *) (pc + 20); |
| 160 | k = __glEvalComputeK(target); |
| 161 | if (order <= 0 || k < 0) { |
| 162 | /* Erroneous command. */ |
| 163 | compsize = 0; |
| 164 | } |
| 165 | else { |
| 166 | compsize = order * k; |
| 167 | } |
| 168 | __GLX_GET_DOUBLE(u1, pc); |
| 169 | __GLX_GET_DOUBLE(u2, pc + 8); |
| 170 | __GLX_SWAP_DOUBLE_ARRAY(pc + 24, compsize); |
| 171 | pc += 24; |
| 172 | |
| 173 | #ifdef __GLX_ALIGN64 |
| 174 | if (((unsigned long) pc) & 7) { |
| 175 | /* |
| 176 | ** Copy the doubles up 4 bytes, trashing the command but aligning |
| 177 | ** the data in the process |
| 178 | */ |
| 179 | __GLX_MEM_COPY(pc - 4, pc, compsize * 8); |
| 180 | points = (GLdouble *) (pc - 4); |
| 181 | } |
| 182 | else { |
| 183 | points = (GLdouble *) pc; |
| 184 | } |
| 185 | #else |
| 186 | points = (GLdouble *) pc; |
| 187 | #endif |
| 188 | } |
| 189 | |
| 190 | void |
| 191 | __glXDispSwap_Map2d(GLbyte * pc) |
| 192 | { |
| 193 | GLdouble u1, u2, v1, v2, *points; |
| 194 | GLint uorder, vorder, ustride, vstride, k, compsize; |
| 195 | GLenum target; |
| 196 | |
| 197 | __GLX_DECLARE_SWAP_VARIABLES; |
| 198 | __GLX_DECLARE_SWAP_ARRAY_VARIABLES; |
| 199 | |
| 200 | __GLX_SWAP_DOUBLE(pc + 0); |
| 201 | __GLX_SWAP_DOUBLE(pc + 8); |
| 202 | __GLX_SWAP_DOUBLE(pc + 16); |
| 203 | __GLX_SWAP_DOUBLE(pc + 24); |
| 204 | __GLX_SWAP_INT(pc + 32); |
| 205 | __GLX_SWAP_INT(pc + 36); |
| 206 | __GLX_SWAP_INT(pc + 40); |
| 207 | |
| 208 | target = *(GLenum *) (pc + 32); |
| 209 | uorder = *(GLint *) (pc + 36); |
| 210 | vorder = *(GLint *) (pc + 40); |
| 211 | k = __glEvalComputeK(target); |
| 212 | if (vorder <= 0 || uorder <= 0 || k < 0) { |
| 213 | /* Erroneous command. */ |
| 214 | compsize = 0; |
| 215 | } |
| 216 | else { |
| 217 | compsize = uorder * vorder * k; |
| 218 | } |
| 219 | __GLX_GET_DOUBLE(u1, pc); |
| 220 | __GLX_GET_DOUBLE(u2, pc + 8); |
| 221 | __GLX_GET_DOUBLE(v1, pc + 16); |
| 222 | __GLX_GET_DOUBLE(v2, pc + 24); |
| 223 | __GLX_SWAP_DOUBLE_ARRAY(pc + 44, compsize); |
| 224 | pc += 44; |
| 225 | ustride = vorder * k; |
| 226 | vstride = k; |
| 227 | |
| 228 | #ifdef __GLX_ALIGN64 |
| 229 | if (((unsigned long) pc) & 7) { |
| 230 | /* |
| 231 | ** Copy the doubles up 4 bytes, trashing the command but aligning |
| 232 | ** the data in the process |
| 233 | */ |
| 234 | __GLX_MEM_COPY(pc - 4, pc, compsize * 8); |
| 235 | points = (GLdouble *) (pc - 4); |
| 236 | } |
| 237 | else { |
| 238 | points = (GLdouble *) pc; |
| 239 | } |
| 240 | #else |
| 241 | points = (GLdouble *) pc; |
| 242 | #endif |
| 243 | } |
| 244 | |
| 245 | void |
| 246 | __glXDispSwap_CallLists(GLbyte * pc) |
| 247 | { |
| 248 | GLenum type; |
| 249 | GLsizei n; |
| 250 | |
| 251 | __GLX_DECLARE_SWAP_VARIABLES; |
| 252 | __GLX_DECLARE_SWAP_ARRAY_VARIABLES; |
| 253 | |
| 254 | __GLX_SWAP_INT(pc + 4); |
| 255 | __GLX_SWAP_INT(pc + 0); |
| 256 | type = *(GLenum *) (pc + 4); |
| 257 | n = *(GLsizei *) (pc + 0); |
| 258 | |
| 259 | switch (type) { |
| 260 | case GL_BYTE: |
| 261 | case GL_UNSIGNED_BYTE: |
| 262 | case GL_2_BYTES: |
| 263 | case GL_3_BYTES: |
| 264 | case GL_4_BYTES: |
| 265 | break; |
| 266 | case GL_SHORT: |
| 267 | case GL_UNSIGNED_SHORT: |
| 268 | __GLX_SWAP_SHORT_ARRAY(pc + 8, n); |
| 269 | break; |
| 270 | case GL_INT: |
| 271 | case GL_UNSIGNED_INT: |
| 272 | __GLX_SWAP_INT_ARRAY(pc + 8, n); |
| 273 | break; |
| 274 | case GL_FLOAT: |
| 275 | __GLX_SWAP_FLOAT_ARRAY(pc + 8, n); |
| 276 | break; |
| 277 | } |
| 278 | |
| 279 | } |
| 280 | |
| 281 | void |
| 282 | __glXDispSwap_DrawArrays(GLbyte * pc) |
| 283 | { |
| 284 | __GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *) pc; |
| 285 | __GLXdispatchDrawArraysComponentHeader *compHeader; |
| 286 | int i; |
| 287 | |
| 288 | __GLX_DECLARE_SWAP_VARIABLES; |
| 289 | |
| 290 | __GLX_SWAP_INT(&hdr->numVertexes); |
| 291 | __GLX_SWAP_INT(&hdr->numComponents); |
| 292 | __GLX_SWAP_INT(&hdr->primType); |
| 293 | |
| 294 | pc += sizeof(__GLXdispatchDrawArraysHeader); |
| 295 | compHeader = (__GLXdispatchDrawArraysComponentHeader *) pc; |
| 296 | |
| 297 | /* compute stride (same for all component arrays) */ |
| 298 | for (i = 0; i < hdr->numComponents; i++) { |
| 299 | __GLX_SWAP_INT(&compHeader[i].datatype); |
| 300 | __GLX_SWAP_INT(&compHeader[i].numVals); |
| 301 | __GLX_SWAP_INT(&compHeader[i].component); |
| 302 | |
| 303 | } |
| 304 | |
| 305 | } |