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a09e091a JB |
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 | } |