1
2 /*
3 * Copyright 2003 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * on the rights to use, copy, modify, merge, publish, distribute, sub
10 * license, and/or sell copies of the Software, and to permit persons to whom
11 * the Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
20 * VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
23 * USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 * Authors:
26 * Keith Whitwell <keithw@vmware.com>
27 */
28
29 #include "main/glheader.h"
30 #include "main/context.h"
31 #include "main/macros.h"
32 #include "swrast/s_chan.h"
33 #include "t_context.h"
34 #include "t_vertex.h"
35
36
37 #if 0
38 #define DEBUG_INSERT printf("%s\n", __func__)
39 #else
40 #define DEBUG_INSERT
41 #endif
42
43
44 /*
45 * These functions take the NDC coordinates pointed to by 'in', apply the
46 * NDC->Viewport mapping and store the results at 'v'.
47 */
48
insert_4f_viewport_4(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)49 static inline void insert_4f_viewport_4( const struct tnl_clipspace_attr *a, GLubyte *v,
50 const GLfloat *in )
51 {
52 GLfloat *out = (GLfloat *)v;
53 const GLfloat * const vp = a->vp;
54 DEBUG_INSERT;
55 out[0] = vp[0] * in[0] + vp[12];
56 out[1] = vp[5] * in[1] + vp[13];
57 out[2] = vp[10] * in[2] + vp[14];
58 out[3] = in[3];
59 }
60
insert_4f_viewport_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)61 static inline void insert_4f_viewport_3( const struct tnl_clipspace_attr *a, GLubyte *v,
62 const GLfloat *in )
63 {
64 GLfloat *out = (GLfloat *)v;
65 const GLfloat * const vp = a->vp;
66 DEBUG_INSERT;
67 out[0] = vp[0] * in[0] + vp[12];
68 out[1] = vp[5] * in[1] + vp[13];
69 out[2] = vp[10] * in[2] + vp[14];
70 out[3] = 1;
71 }
72
insert_4f_viewport_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)73 static inline void insert_4f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v,
74 const GLfloat *in )
75 {
76 GLfloat *out = (GLfloat *)v;
77 const GLfloat * const vp = a->vp;
78 DEBUG_INSERT;
79 out[0] = vp[0] * in[0] + vp[12];
80 out[1] = vp[5] * in[1] + vp[13];
81 out[2] = vp[14];
82 out[3] = 1;
83 }
84
insert_4f_viewport_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)85 static inline void insert_4f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v,
86 const GLfloat *in )
87 {
88 GLfloat *out = (GLfloat *)v;
89 const GLfloat * const vp = a->vp;
90 DEBUG_INSERT;
91 out[0] = vp[0] * in[0] + vp[12];
92 out[1] = vp[13];
93 out[2] = vp[14];
94 out[3] = 1;
95 }
96
insert_3f_viewport_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)97 static inline void insert_3f_viewport_3( const struct tnl_clipspace_attr *a, GLubyte *v,
98 const GLfloat *in )
99 {
100 GLfloat *out = (GLfloat *)v;
101 const GLfloat * const vp = a->vp;
102 DEBUG_INSERT;
103 out[0] = vp[0] * in[0] + vp[12];
104 out[1] = vp[5] * in[1] + vp[13];
105 out[2] = vp[10] * in[2] + vp[14];
106 }
107
insert_3f_viewport_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)108 static inline void insert_3f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v,
109 const GLfloat *in )
110 {
111 GLfloat *out = (GLfloat *)v;
112 const GLfloat * const vp = a->vp;
113 DEBUG_INSERT;
114 out[0] = vp[0] * in[0] + vp[12];
115 out[1] = vp[5] * in[1] + vp[13];
116 out[2] = vp[14];
117 }
118
insert_3f_viewport_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)119 static inline void insert_3f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v,
120 const GLfloat *in )
121 {
122 GLfloat *out = (GLfloat *)v;
123 const GLfloat * const vp = a->vp;
124 DEBUG_INSERT;
125 out[0] = vp[0] * in[0] + vp[12];
126 out[1] = vp[13];
127 out[2] = vp[14];
128 }
129
insert_2f_viewport_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)130 static inline void insert_2f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v,
131 const GLfloat *in )
132 {
133 GLfloat *out = (GLfloat *)v;
134 const GLfloat * const vp = a->vp;
135 DEBUG_INSERT;
136 out[0] = vp[0] * in[0] + vp[12];
137 out[1] = vp[5] * in[1] + vp[13];
138 }
139
insert_2f_viewport_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)140 static inline void insert_2f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v,
141 const GLfloat *in )
142 {
143 GLfloat *out = (GLfloat *)v;
144 const GLfloat * const vp = a->vp;
145 DEBUG_INSERT;
146 out[0] = vp[0] * in[0] + vp[12];
147 out[1] = vp[13];
148 }
149
150
151 /*
152 * These functions do the same as above, except for the viewport mapping.
153 */
154
insert_4f_4(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)155 static inline void insert_4f_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
156 {
157 GLfloat *out = (GLfloat *)(v);
158 (void) a;
159 DEBUG_INSERT;
160 out[0] = in[0];
161 out[1] = in[1];
162 out[2] = in[2];
163 out[3] = in[3];
164 }
165
insert_4f_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)166 static inline void insert_4f_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
167 {
168 GLfloat *out = (GLfloat *)(v);
169 (void) a;
170 DEBUG_INSERT;
171 out[0] = in[0];
172 out[1] = in[1];
173 out[2] = in[2];
174 out[3] = 1;
175 }
176
insert_4f_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)177 static inline void insert_4f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
178 {
179 GLfloat *out = (GLfloat *)(v);
180 (void) a;
181 DEBUG_INSERT;
182 out[0] = in[0];
183 out[1] = in[1];
184 out[2] = 0;
185 out[3] = 1;
186 }
187
insert_4f_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)188 static inline void insert_4f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
189 {
190 GLfloat *out = (GLfloat *)(v);
191 (void) a;
192 DEBUG_INSERT;
193 out[0] = in[0];
194 out[1] = 0;
195 out[2] = 0;
196 out[3] = 1;
197 }
198
insert_3f_xyw_4(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)199 static inline void insert_3f_xyw_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
200 {
201 GLfloat *out = (GLfloat *)(v);
202 (void) a;
203 DEBUG_INSERT;
204 out[0] = in[0];
205 out[1] = in[1];
206 out[2] = in[3];
207 }
208
insert_3f_xyw_err(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)209 static inline void insert_3f_xyw_err( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
210 {
211 (void) a; (void) v; (void) in;
212 DEBUG_INSERT;
213 exit(1);
214 }
215
insert_3f_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)216 static inline void insert_3f_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
217 {
218 GLfloat *out = (GLfloat *)(v);
219 (void) a;
220 DEBUG_INSERT;
221 out[0] = in[0];
222 out[1] = in[1];
223 out[2] = in[2];
224 }
225
insert_3f_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)226 static inline void insert_3f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
227 {
228 GLfloat *out = (GLfloat *)(v);
229 (void) a;
230 DEBUG_INSERT;
231 out[0] = in[0];
232 out[1] = in[1];
233 out[2] = 0;
234 }
235
insert_3f_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)236 static inline void insert_3f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
237 {
238 GLfloat *out = (GLfloat *)(v);
239 (void) a;
240 DEBUG_INSERT;
241 out[0] = in[0];
242 out[1] = 0;
243 out[2] = 0;
244 }
245
246
insert_2f_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)247 static inline void insert_2f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
248 {
249 GLfloat *out = (GLfloat *)(v);
250 (void) a;
251 DEBUG_INSERT;
252 out[0] = in[0];
253 out[1] = in[1];
254 }
255
insert_2f_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)256 static inline void insert_2f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
257 {
258 GLfloat *out = (GLfloat *)(v);
259 (void) a;
260 DEBUG_INSERT;
261 out[0] = in[0];
262 out[1] = 0;
263 }
264
insert_1f_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)265 static inline void insert_1f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
266 {
267 GLfloat *out = (GLfloat *)(v);
268 (void) a;
269 DEBUG_INSERT;
270 out[0] = in[0];
271 }
272
insert_null(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)273 static inline void insert_null( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
274 {
275 DEBUG_INSERT;
276 (void) a; (void) v; (void) in;
277 }
278
insert_4chan_4f_rgba_4(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)279 static inline void insert_4chan_4f_rgba_4( const struct tnl_clipspace_attr *a, GLubyte *v,
280 const GLfloat *in )
281 {
282 GLchan *c = (GLchan *)v;
283 DEBUG_INSERT;
284 (void) a;
285 UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]);
286 UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]);
287 UNCLAMPED_FLOAT_TO_CHAN(c[2], in[2]);
288 UNCLAMPED_FLOAT_TO_CHAN(c[3], in[3]);
289 }
290
insert_4chan_4f_rgba_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)291 static inline void insert_4chan_4f_rgba_3( const struct tnl_clipspace_attr *a, GLubyte *v,
292 const GLfloat *in )
293 {
294 GLchan *c = (GLchan *)v;
295 DEBUG_INSERT;
296 (void) a;
297 UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]);
298 UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]);
299 UNCLAMPED_FLOAT_TO_CHAN(c[2], in[2]);
300 c[3] = CHAN_MAX;
301 }
302
insert_4chan_4f_rgba_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)303 static inline void insert_4chan_4f_rgba_2( const struct tnl_clipspace_attr *a, GLubyte *v,
304 const GLfloat *in )
305 {
306 GLchan *c = (GLchan *)v;
307 DEBUG_INSERT;
308 (void) a;
309 UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]);
310 UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]);
311 c[2] = 0;
312 c[3] = CHAN_MAX;
313 }
314
insert_4chan_4f_rgba_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)315 static inline void insert_4chan_4f_rgba_1( const struct tnl_clipspace_attr *a, GLubyte *v,
316 const GLfloat *in )
317 {
318 GLchan *c = (GLchan *)v;
319 DEBUG_INSERT;
320 (void) a;
321 UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]);
322 c[1] = 0;
323 c[2] = 0;
324 c[3] = CHAN_MAX;
325 }
326
insert_4ub_4f_rgba_4(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)327 static inline void insert_4ub_4f_rgba_4( const struct tnl_clipspace_attr *a, GLubyte *v,
328 const GLfloat *in )
329 {
330 DEBUG_INSERT;
331 (void) a;
332 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
333 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
334 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]);
335 UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[3]);
336 }
337
insert_4ub_4f_rgba_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)338 static inline void insert_4ub_4f_rgba_3( const struct tnl_clipspace_attr *a, GLubyte *v,
339 const GLfloat *in )
340 {
341 DEBUG_INSERT;
342 (void) a;
343 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
344 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
345 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]);
346 v[3] = 0xff;
347 }
348
insert_4ub_4f_rgba_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)349 static inline void insert_4ub_4f_rgba_2( const struct tnl_clipspace_attr *a, GLubyte *v,
350 const GLfloat *in )
351 {
352 DEBUG_INSERT;
353 (void) a;
354 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
355 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
356 v[2] = 0;
357 v[3] = 0xff;
358 }
359
insert_4ub_4f_rgba_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)360 static inline void insert_4ub_4f_rgba_1( const struct tnl_clipspace_attr *a, GLubyte *v,
361 const GLfloat *in )
362 {
363 DEBUG_INSERT;
364 (void) a;
365 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
366 v[1] = 0;
367 v[2] = 0;
368 v[3] = 0xff;
369 }
370
insert_4ub_4f_bgra_4(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)371 static inline void insert_4ub_4f_bgra_4( const struct tnl_clipspace_attr *a, GLubyte *v,
372 const GLfloat *in )
373 {
374 DEBUG_INSERT;
375 (void) a;
376 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
377 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
378 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]);
379 UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[3]);
380 }
381
insert_4ub_4f_bgra_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)382 static inline void insert_4ub_4f_bgra_3( const struct tnl_clipspace_attr *a, GLubyte *v,
383 const GLfloat *in )
384 {
385 DEBUG_INSERT;
386 (void) a;
387 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
388 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
389 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]);
390 v[3] = 0xff;
391 }
392
insert_4ub_4f_bgra_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)393 static inline void insert_4ub_4f_bgra_2( const struct tnl_clipspace_attr *a, GLubyte *v,
394 const GLfloat *in )
395 {
396 DEBUG_INSERT;
397 (void) a;
398 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
399 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
400 v[0] = 0;
401 v[3] = 0xff;
402 }
403
insert_4ub_4f_bgra_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)404 static inline void insert_4ub_4f_bgra_1( const struct tnl_clipspace_attr *a, GLubyte *v,
405 const GLfloat *in )
406 {
407 DEBUG_INSERT;
408 (void) a;
409 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
410 v[1] = 0;
411 v[0] = 0;
412 v[3] = 0xff;
413 }
414
insert_4ub_4f_argb_4(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)415 static inline void insert_4ub_4f_argb_4( const struct tnl_clipspace_attr *a, GLubyte *v,
416 const GLfloat *in )
417 {
418 DEBUG_INSERT;
419 (void) a;
420 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
421 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
422 UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[2]);
423 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[3]);
424 }
425
insert_4ub_4f_argb_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)426 static inline void insert_4ub_4f_argb_3( const struct tnl_clipspace_attr *a, GLubyte *v,
427 const GLfloat *in )
428 {
429 DEBUG_INSERT;
430 (void) a;
431 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
432 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
433 UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[2]);
434 v[0] = 0xff;
435 }
436
insert_4ub_4f_argb_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)437 static inline void insert_4ub_4f_argb_2( const struct tnl_clipspace_attr *a, GLubyte *v,
438 const GLfloat *in )
439 {
440 DEBUG_INSERT;
441 (void) a;
442 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
443 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
444 v[3] = 0x00;
445 v[0] = 0xff;
446 }
447
insert_4ub_4f_argb_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)448 static inline void insert_4ub_4f_argb_1( const struct tnl_clipspace_attr *a, GLubyte *v,
449 const GLfloat *in )
450 {
451 DEBUG_INSERT;
452 (void) a;
453 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
454 v[2] = 0x00;
455 v[3] = 0x00;
456 v[0] = 0xff;
457 }
458
insert_4ub_4f_abgr_4(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)459 static inline void insert_4ub_4f_abgr_4( const struct tnl_clipspace_attr *a, GLubyte *v,
460 const GLfloat *in )
461 {
462 DEBUG_INSERT;
463 (void) a;
464 UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
465 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
466 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[2]);
467 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[3]);
468 }
469
insert_4ub_4f_abgr_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)470 static inline void insert_4ub_4f_abgr_3( const struct tnl_clipspace_attr *a, GLubyte *v,
471 const GLfloat *in )
472 {
473 DEBUG_INSERT;
474 (void) a;
475 UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
476 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
477 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[2]);
478 v[0] = 0xff;
479 }
480
insert_4ub_4f_abgr_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)481 static inline void insert_4ub_4f_abgr_2( const struct tnl_clipspace_attr *a, GLubyte *v,
482 const GLfloat *in )
483 {
484 DEBUG_INSERT;
485 (void) a;
486 UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
487 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
488 v[1] = 0x00;
489 v[0] = 0xff;
490 }
491
insert_4ub_4f_abgr_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)492 static inline void insert_4ub_4f_abgr_1( const struct tnl_clipspace_attr *a, GLubyte *v,
493 const GLfloat *in )
494 {
495 DEBUG_INSERT;
496 (void) a;
497 UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
498 v[2] = 0x00;
499 v[1] = 0x00;
500 v[0] = 0xff;
501 }
502
insert_3ub_3f_rgb_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)503 static inline void insert_3ub_3f_rgb_3( const struct tnl_clipspace_attr *a, GLubyte *v,
504 const GLfloat *in )
505 {
506 DEBUG_INSERT;
507 (void) a;
508 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
509 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
510 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]);
511 }
512
insert_3ub_3f_rgb_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)513 static inline void insert_3ub_3f_rgb_2( const struct tnl_clipspace_attr *a, GLubyte *v,
514 const GLfloat *in )
515 {
516 DEBUG_INSERT;
517 (void) a;
518 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
519 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
520 v[2] = 0;
521 }
522
insert_3ub_3f_rgb_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)523 static inline void insert_3ub_3f_rgb_1( const struct tnl_clipspace_attr *a, GLubyte *v,
524 const GLfloat *in )
525 {
526 DEBUG_INSERT;
527 (void) a;
528 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
529 v[1] = 0;
530 v[2] = 0;
531 }
532
insert_3ub_3f_bgr_3(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)533 static inline void insert_3ub_3f_bgr_3( const struct tnl_clipspace_attr *a, GLubyte *v,
534 const GLfloat *in )
535 {
536 DEBUG_INSERT;
537 (void) a;
538 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
539 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
540 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]);
541 }
542
insert_3ub_3f_bgr_2(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)543 static inline void insert_3ub_3f_bgr_2( const struct tnl_clipspace_attr *a, GLubyte *v,
544 const GLfloat *in )
545 {
546 DEBUG_INSERT;
547 (void) a;
548 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
549 UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
550 v[0] = 0;
551 }
552
insert_3ub_3f_bgr_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)553 static inline void insert_3ub_3f_bgr_1( const struct tnl_clipspace_attr *a, GLubyte *v,
554 const GLfloat *in )
555 {
556 DEBUG_INSERT;
557 (void) a;
558 UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
559 v[1] = 0;
560 v[0] = 0;
561 }
562
563
insert_1ub_1f_1(const struct tnl_clipspace_attr * a,GLubyte * v,const GLfloat * in)564 static inline void insert_1ub_1f_1( const struct tnl_clipspace_attr *a, GLubyte *v,
565 const GLfloat *in )
566 {
567 DEBUG_INSERT;
568 (void) a;
569 UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
570 }
571
572
573 /***********************************************************************
574 * Functions to perform the reverse operations to the above, for
575 * swrast translation and clip-interpolation.
576 *
577 * Currently always extracts a full 4 floats.
578 */
579
extract_4f_viewport(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)580 static void extract_4f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out,
581 const GLubyte *v )
582 {
583 const GLfloat *in = (const GLfloat *)v;
584 const GLfloat * const vp = a->vp;
585
586 /* Although included for completeness, the position coordinate is
587 * usually handled differently during clipping.
588 */
589 DEBUG_INSERT;
590 out[0] = (in[0] - vp[12]) / vp[0];
591 out[1] = (in[1] - vp[13]) / vp[5];
592 out[2] = (in[2] - vp[14]) / vp[10];
593 out[3] = in[3];
594 }
595
extract_3f_viewport(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)596 static void extract_3f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out,
597 const GLubyte *v )
598 {
599 const GLfloat *in = (const GLfloat *)v;
600 const GLfloat * const vp = a->vp;
601 DEBUG_INSERT;
602 out[0] = (in[0] - vp[12]) / vp[0];
603 out[1] = (in[1] - vp[13]) / vp[5];
604 out[2] = (in[2] - vp[14]) / vp[10];
605 out[3] = 1;
606 }
607
608
extract_2f_viewport(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)609 static void extract_2f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out,
610 const GLubyte *v )
611 {
612 const GLfloat *in = (const GLfloat *)v;
613 const GLfloat * const vp = a->vp;
614 DEBUG_INSERT;
615 out[0] = (in[0] - vp[12]) / vp[0];
616 out[1] = (in[1] - vp[13]) / vp[5];
617 out[2] = 0;
618 out[3] = 1;
619 }
620
621
extract_4f(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)622 static void extract_4f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
623 {
624 const GLfloat *in = (const GLfloat *)v;
625 (void) a;
626
627 out[0] = in[0];
628 out[1] = in[1];
629 out[2] = in[2];
630 out[3] = in[3];
631 }
632
extract_3f_xyw(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)633 static void extract_3f_xyw( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
634 {
635 const GLfloat *in = (const GLfloat *)v;
636 (void) a;
637
638 out[0] = in[0];
639 out[1] = in[1];
640 out[2] = 0;
641 out[3] = in[2];
642 }
643
644
extract_3f(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)645 static void extract_3f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
646 {
647 const GLfloat *in = (const GLfloat *)v;
648 (void) a;
649
650 out[0] = in[0];
651 out[1] = in[1];
652 out[2] = in[2];
653 out[3] = 1;
654 }
655
656
extract_2f(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)657 static void extract_2f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
658 {
659 const GLfloat *in = (const GLfloat *)v;
660 (void) a;
661
662 out[0] = in[0];
663 out[1] = in[1];
664 out[2] = 0;
665 out[3] = 1;
666 }
667
extract_1f(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)668 static void extract_1f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
669 {
670 const GLfloat *in = (const GLfloat *)v;
671 (void) a;
672
673 out[0] = in[0];
674 out[1] = 0;
675 out[2] = 0;
676 out[3] = 1;
677 }
678
extract_4chan_4f_rgba(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)679 static void extract_4chan_4f_rgba( const struct tnl_clipspace_attr *a, GLfloat *out,
680 const GLubyte *v )
681 {
682 GLchan *c = (GLchan *)v;
683 (void) a;
684
685 out[0] = CHAN_TO_FLOAT(c[0]);
686 out[1] = CHAN_TO_FLOAT(c[1]);
687 out[2] = CHAN_TO_FLOAT(c[2]);
688 out[3] = CHAN_TO_FLOAT(c[3]);
689 }
690
extract_4ub_4f_rgba(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)691 static void extract_4ub_4f_rgba( const struct tnl_clipspace_attr *a, GLfloat *out,
692 const GLubyte *v )
693 {
694 (void) a;
695 out[0] = UBYTE_TO_FLOAT(v[0]);
696 out[1] = UBYTE_TO_FLOAT(v[1]);
697 out[2] = UBYTE_TO_FLOAT(v[2]);
698 out[3] = UBYTE_TO_FLOAT(v[3]);
699 }
700
extract_4ub_4f_bgra(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)701 static void extract_4ub_4f_bgra( const struct tnl_clipspace_attr *a, GLfloat *out,
702 const GLubyte *v )
703 {
704 (void) a;
705 out[2] = UBYTE_TO_FLOAT(v[0]);
706 out[1] = UBYTE_TO_FLOAT(v[1]);
707 out[0] = UBYTE_TO_FLOAT(v[2]);
708 out[3] = UBYTE_TO_FLOAT(v[3]);
709 }
710
extract_4ub_4f_argb(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)711 static void extract_4ub_4f_argb( const struct tnl_clipspace_attr *a, GLfloat *out,
712 const GLubyte *v )
713 {
714 (void) a;
715 out[3] = UBYTE_TO_FLOAT(v[0]);
716 out[0] = UBYTE_TO_FLOAT(v[1]);
717 out[1] = UBYTE_TO_FLOAT(v[2]);
718 out[2] = UBYTE_TO_FLOAT(v[3]);
719 }
720
extract_4ub_4f_abgr(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)721 static void extract_4ub_4f_abgr( const struct tnl_clipspace_attr *a, GLfloat *out,
722 const GLubyte *v )
723 {
724 (void) a;
725 out[3] = UBYTE_TO_FLOAT(v[0]);
726 out[2] = UBYTE_TO_FLOAT(v[1]);
727 out[1] = UBYTE_TO_FLOAT(v[2]);
728 out[0] = UBYTE_TO_FLOAT(v[3]);
729 }
730
extract_3ub_3f_rgb(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)731 static void extract_3ub_3f_rgb( const struct tnl_clipspace_attr *a, GLfloat *out,
732 const GLubyte *v )
733 {
734 (void) a;
735 out[0] = UBYTE_TO_FLOAT(v[0]);
736 out[1] = UBYTE_TO_FLOAT(v[1]);
737 out[2] = UBYTE_TO_FLOAT(v[2]);
738 out[3] = 1;
739 }
740
extract_3ub_3f_bgr(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)741 static void extract_3ub_3f_bgr( const struct tnl_clipspace_attr *a, GLfloat *out,
742 const GLubyte *v )
743 {
744 (void) a;
745 out[2] = UBYTE_TO_FLOAT(v[0]);
746 out[1] = UBYTE_TO_FLOAT(v[1]);
747 out[0] = UBYTE_TO_FLOAT(v[2]);
748 out[3] = 1;
749 }
750
extract_1ub_1f(const struct tnl_clipspace_attr * a,GLfloat * out,const GLubyte * v)751 static void extract_1ub_1f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
752 {
753 (void) a;
754 out[0] = UBYTE_TO_FLOAT(v[0]);
755 out[1] = 0;
756 out[2] = 0;
757 out[3] = 1;
758 }
759
760
761 const struct tnl_format_info _tnl_format_info[EMIT_MAX] =
762 {
763 { "1f",
764 extract_1f,
765 { insert_1f_1, insert_1f_1, insert_1f_1, insert_1f_1 },
766 sizeof(GLfloat) },
767
768 { "2f",
769 extract_2f,
770 { insert_2f_1, insert_2f_2, insert_2f_2, insert_2f_2 },
771 2 * sizeof(GLfloat) },
772
773 { "3f",
774 extract_3f,
775 { insert_3f_1, insert_3f_2, insert_3f_3, insert_3f_3 },
776 3 * sizeof(GLfloat) },
777
778 { "4f",
779 extract_4f,
780 { insert_4f_1, insert_4f_2, insert_4f_3, insert_4f_4 },
781 4 * sizeof(GLfloat) },
782
783 { "2f_viewport",
784 extract_2f_viewport,
785 { insert_2f_viewport_1, insert_2f_viewport_2, insert_2f_viewport_2,
786 insert_2f_viewport_2 },
787 2 * sizeof(GLfloat) },
788
789 { "3f_viewport",
790 extract_3f_viewport,
791 { insert_3f_viewport_1, insert_3f_viewport_2, insert_3f_viewport_3,
792 insert_3f_viewport_3 },
793 3 * sizeof(GLfloat) },
794
795 { "4f_viewport",
796 extract_4f_viewport,
797 { insert_4f_viewport_1, insert_4f_viewport_2, insert_4f_viewport_3,
798 insert_4f_viewport_4 },
799 4 * sizeof(GLfloat) },
800
801 { "3f_xyw",
802 extract_3f_xyw,
803 { insert_3f_xyw_err, insert_3f_xyw_err, insert_3f_xyw_err,
804 insert_3f_xyw_4 },
805 3 * sizeof(GLfloat) },
806
807 { "1ub_1f",
808 extract_1ub_1f,
809 { insert_1ub_1f_1, insert_1ub_1f_1, insert_1ub_1f_1, insert_1ub_1f_1 },
810 sizeof(GLubyte) },
811
812 { "3ub_3f_rgb",
813 extract_3ub_3f_rgb,
814 { insert_3ub_3f_rgb_1, insert_3ub_3f_rgb_2, insert_3ub_3f_rgb_3,
815 insert_3ub_3f_rgb_3 },
816 3 * sizeof(GLubyte) },
817
818 { "3ub_3f_bgr",
819 extract_3ub_3f_bgr,
820 { insert_3ub_3f_bgr_1, insert_3ub_3f_bgr_2, insert_3ub_3f_bgr_3,
821 insert_3ub_3f_bgr_3 },
822 3 * sizeof(GLubyte) },
823
824 { "4ub_4f_rgba",
825 extract_4ub_4f_rgba,
826 { insert_4ub_4f_rgba_1, insert_4ub_4f_rgba_2, insert_4ub_4f_rgba_3,
827 insert_4ub_4f_rgba_4 },
828 4 * sizeof(GLubyte) },
829
830 { "4ub_4f_bgra",
831 extract_4ub_4f_bgra,
832 { insert_4ub_4f_bgra_1, insert_4ub_4f_bgra_2, insert_4ub_4f_bgra_3,
833 insert_4ub_4f_bgra_4 },
834 4 * sizeof(GLubyte) },
835
836 { "4ub_4f_argb",
837 extract_4ub_4f_argb,
838 { insert_4ub_4f_argb_1, insert_4ub_4f_argb_2, insert_4ub_4f_argb_3,
839 insert_4ub_4f_argb_4 },
840 4 * sizeof(GLubyte) },
841
842 { "4ub_4f_abgr",
843 extract_4ub_4f_abgr,
844 { insert_4ub_4f_abgr_1, insert_4ub_4f_abgr_2, insert_4ub_4f_abgr_3,
845 insert_4ub_4f_abgr_4 },
846 4 * sizeof(GLubyte) },
847
848 { "4chan_4f_rgba",
849 extract_4chan_4f_rgba,
850 { insert_4chan_4f_rgba_1, insert_4chan_4f_rgba_2, insert_4chan_4f_rgba_3,
851 insert_4chan_4f_rgba_4 },
852 4 * sizeof(GLchan) },
853
854 { "pad",
855 NULL,
856 { NULL, NULL, NULL, NULL },
857 0 }
858
859 };
860
861
862
863
864 /***********************************************************************
865 * Hardwired fastpaths for emitting whole vertices or groups of
866 * vertices
867 */
868 #define EMIT5(NR, F0, F1, F2, F3, F4, NAME) \
869 static void NAME( struct gl_context *ctx, \
870 GLuint count, \
871 GLubyte *v ) \
872 { \
873 struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); \
874 struct tnl_clipspace_attr *a = vtx->attr; \
875 GLuint i; \
876 \
877 for (i = 0 ; i < count ; i++, v += vtx->vertex_size) { \
878 if (NR > 0) { \
879 F0( &a[0], v + a[0].vertoffset, (GLfloat *)a[0].inputptr ); \
880 a[0].inputptr += a[0].inputstride; \
881 } \
882 \
883 if (NR > 1) { \
884 F1( &a[1], v + a[1].vertoffset, (GLfloat *)a[1].inputptr ); \
885 a[1].inputptr += a[1].inputstride; \
886 } \
887 \
888 if (NR > 2) { \
889 F2( &a[2], v + a[2].vertoffset, (GLfloat *)a[2].inputptr ); \
890 a[2].inputptr += a[2].inputstride; \
891 } \
892 \
893 if (NR > 3) { \
894 F3( &a[3], v + a[3].vertoffset, (GLfloat *)a[3].inputptr ); \
895 a[3].inputptr += a[3].inputstride; \
896 } \
897 \
898 if (NR > 4) { \
899 F4( &a[4], v + a[4].vertoffset, (GLfloat *)a[4].inputptr ); \
900 a[4].inputptr += a[4].inputstride; \
901 } \
902 } \
903 }
904
905
906 #define EMIT2(F0, F1, NAME) EMIT5(2, F0, F1, insert_null, \
907 insert_null, insert_null, NAME)
908
909 #define EMIT3(F0, F1, F2, NAME) EMIT5(3, F0, F1, F2, insert_null, \
910 insert_null, NAME)
911
912 #define EMIT4(F0, F1, F2, F3, NAME) EMIT5(4, F0, F1, F2, F3, \
913 insert_null, NAME)
914
915
EMIT2(insert_3f_viewport_3,insert_4ub_4f_rgba_4,emit_viewport3_rgba4)916 EMIT2(insert_3f_viewport_3, insert_4ub_4f_rgba_4, emit_viewport3_rgba4)
917 EMIT2(insert_3f_viewport_3, insert_4ub_4f_bgra_4, emit_viewport3_bgra4)
918 EMIT2(insert_3f_3, insert_4ub_4f_rgba_4, emit_xyz3_rgba4)
919
920 EMIT3(insert_4f_viewport_4, insert_4ub_4f_rgba_4, insert_2f_2, emit_viewport4_rgba4_st2)
921 EMIT3(insert_4f_viewport_4, insert_4ub_4f_bgra_4, insert_2f_2, emit_viewport4_bgra4_st2)
922 EMIT3(insert_4f_4, insert_4ub_4f_rgba_4, insert_2f_2, emit_xyzw4_rgba4_st2)
923
924 EMIT4(insert_4f_viewport_4, insert_4ub_4f_rgba_4, insert_2f_2, insert_2f_2, emit_viewport4_rgba4_st2_st2)
925 EMIT4(insert_4f_viewport_4, insert_4ub_4f_bgra_4, insert_2f_2, insert_2f_2, emit_viewport4_bgra4_st2_st2)
926 EMIT4(insert_4f_4, insert_4ub_4f_rgba_4, insert_2f_2, insert_2f_2, emit_xyzw4_rgba4_st2_st2)
927
928
929 /* Use the codegen paths to select one of a number of hardwired
930 * fastpaths.
931 */
932 void _tnl_generate_hardwired_emit( struct gl_context *ctx )
933 {
934 struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
935 tnl_emit_func func = NULL;
936
937 /* Does it fit a hardwired fastpath? Help! this is growing out of
938 * control!
939 */
940 switch (vtx->attr_count) {
941 case 2:
942 if (vtx->attr[0].emit == insert_3f_viewport_3) {
943 if (vtx->attr[1].emit == insert_4ub_4f_bgra_4)
944 func = emit_viewport3_bgra4;
945 else if (vtx->attr[1].emit == insert_4ub_4f_rgba_4)
946 func = emit_viewport3_rgba4;
947 }
948 else if (vtx->attr[0].emit == insert_3f_3 &&
949 vtx->attr[1].emit == insert_4ub_4f_rgba_4) {
950 func = emit_xyz3_rgba4;
951 }
952 break;
953 case 3:
954 if (vtx->attr[2].emit == insert_2f_2) {
955 if (vtx->attr[1].emit == insert_4ub_4f_rgba_4) {
956 if (vtx->attr[0].emit == insert_4f_viewport_4)
957 func = emit_viewport4_rgba4_st2;
958 else if (vtx->attr[0].emit == insert_4f_4)
959 func = emit_xyzw4_rgba4_st2;
960 }
961 else if (vtx->attr[1].emit == insert_4ub_4f_bgra_4 &&
962 vtx->attr[0].emit == insert_4f_viewport_4)
963 func = emit_viewport4_bgra4_st2;
964 }
965 break;
966 case 4:
967 if (vtx->attr[2].emit == insert_2f_2 &&
968 vtx->attr[3].emit == insert_2f_2) {
969 if (vtx->attr[1].emit == insert_4ub_4f_rgba_4) {
970 if (vtx->attr[0].emit == insert_4f_viewport_4)
971 func = emit_viewport4_rgba4_st2_st2;
972 else if (vtx->attr[0].emit == insert_4f_4)
973 func = emit_xyzw4_rgba4_st2_st2;
974 }
975 else if (vtx->attr[1].emit == insert_4ub_4f_bgra_4 &&
976 vtx->attr[0].emit == insert_4f_viewport_4)
977 func = emit_viewport4_bgra4_st2_st2;
978 }
979 break;
980 }
981
982 vtx->emit = func;
983 }
984
985 /***********************************************************************
986 * Generic (non-codegen) functions for whole vertices or groups of
987 * vertices
988 */
989
_tnl_generic_emit(struct gl_context * ctx,GLuint count,GLubyte * v)990 void _tnl_generic_emit( struct gl_context *ctx,
991 GLuint count,
992 GLubyte *v )
993 {
994 struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
995 struct tnl_clipspace_attr *a = vtx->attr;
996 const GLuint attr_count = vtx->attr_count;
997 const GLuint stride = vtx->vertex_size;
998 GLuint i, j;
999
1000 for (i = 0 ; i < count ; i++, v += stride) {
1001 for (j = 0; j < attr_count; j++) {
1002 GLfloat *in = (GLfloat *)a[j].inputptr;
1003 a[j].inputptr += a[j].inputstride;
1004 a[j].emit( &a[j], v + a[j].vertoffset, in );
1005 }
1006 }
1007 }
1008
1009
_tnl_generic_interp(struct gl_context * ctx,GLfloat t,GLuint edst,GLuint eout,GLuint ein,GLboolean force_boundary)1010 void _tnl_generic_interp( struct gl_context *ctx,
1011 GLfloat t,
1012 GLuint edst, GLuint eout, GLuint ein,
1013 GLboolean force_boundary )
1014 {
1015 TNLcontext *tnl = TNL_CONTEXT(ctx);
1016 struct vertex_buffer *VB = &tnl->vb;
1017 struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
1018 const GLubyte *vin = vtx->vertex_buf + ein * vtx->vertex_size;
1019 const GLubyte *vout = vtx->vertex_buf + eout * vtx->vertex_size;
1020 GLubyte *vdst = vtx->vertex_buf + edst * vtx->vertex_size;
1021 const struct tnl_clipspace_attr *a = vtx->attr;
1022 const GLuint attr_count = vtx->attr_count;
1023 GLuint j;
1024 (void) force_boundary;
1025
1026 if (tnl->NeedNdcCoords) {
1027 const GLfloat *dstclip = VB->ClipPtr->data[edst];
1028 if (dstclip[3] != 0.0f) {
1029 const GLfloat w = 1.0f / dstclip[3];
1030 GLfloat pos[4];
1031
1032 pos[0] = dstclip[0] * w;
1033 pos[1] = dstclip[1] * w;
1034 pos[2] = dstclip[2] * w;
1035 pos[3] = w;
1036
1037 a[0].insert[4-1]( &a[0], vdst, pos );
1038 }
1039 }
1040 else {
1041 a[0].insert[4-1]( &a[0], vdst, VB->ClipPtr->data[edst] );
1042 }
1043
1044
1045 for (j = 1; j < attr_count; j++) {
1046 GLfloat fin[4], fout[4], fdst[4];
1047
1048 a[j].extract( &a[j], fin, vin + a[j].vertoffset );
1049 a[j].extract( &a[j], fout, vout + a[j].vertoffset );
1050
1051 INTERP_4F(t, fdst, fout, fin);
1052
1053 a[j].insert[4-1]( &a[j], vdst + a[j].vertoffset, fdst );
1054 }
1055 }
1056
1057
1058 /* Extract color attributes from one vertex and insert them into
1059 * another. (Shortcircuit extract/insert with memcpy).
1060 */
_tnl_generic_copy_pv(struct gl_context * ctx,GLuint edst,GLuint esrc)1061 void _tnl_generic_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc )
1062 {
1063 struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
1064 GLubyte *vsrc = vtx->vertex_buf + esrc * vtx->vertex_size;
1065 GLubyte *vdst = vtx->vertex_buf + edst * vtx->vertex_size;
1066 const struct tnl_clipspace_attr *a = vtx->attr;
1067 const GLuint attr_count = vtx->attr_count;
1068 GLuint j;
1069
1070 for (j = 0; j < attr_count; j++) {
1071 if (a[j].attrib == VERT_ATTRIB_COLOR0 ||
1072 a[j].attrib == VERT_ATTRIB_COLOR1) {
1073
1074 memcpy( vdst + a[j].vertoffset,
1075 vsrc + a[j].vertoffset,
1076 a[j].vertattrsize );
1077 }
1078 }
1079 }
1080
1081
1082 /* Helper functions for hardware which doesn't put back colors and/or
1083 * edgeflags into vertices.
1084 */
_tnl_generic_interp_extras(struct gl_context * ctx,GLfloat t,GLuint dst,GLuint out,GLuint in,GLboolean force_boundary)1085 void _tnl_generic_interp_extras( struct gl_context *ctx,
1086 GLfloat t,
1087 GLuint dst, GLuint out, GLuint in,
1088 GLboolean force_boundary )
1089 {
1090 struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
1091
1092 /* If stride is zero, BackfaceColorPtr is constant across the VB, so
1093 * there is no point interpolating between two values as they will
1094 * be identical. In all other cases, this value is generated by
1095 * t_vb_lighttmp.h and has a stride of 4 dwords.
1096 */
1097 if (VB->BackfaceColorPtr && VB->BackfaceColorPtr->stride) {
1098 assert(VB->BackfaceColorPtr->stride == 4 * sizeof(GLfloat));
1099
1100 INTERP_4F( t,
1101 VB->BackfaceColorPtr->data[dst],
1102 VB->BackfaceColorPtr->data[out],
1103 VB->BackfaceColorPtr->data[in] );
1104 }
1105
1106 if (VB->BackfaceSecondaryColorPtr) {
1107 assert(VB->BackfaceSecondaryColorPtr->stride == 4 * sizeof(GLfloat));
1108
1109 INTERP_3F( t,
1110 VB->BackfaceSecondaryColorPtr->data[dst],
1111 VB->BackfaceSecondaryColorPtr->data[out],
1112 VB->BackfaceSecondaryColorPtr->data[in] );
1113 }
1114
1115 if (VB->BackfaceIndexPtr) {
1116 VB->BackfaceIndexPtr->data[dst][0] = LINTERP( t,
1117 VB->BackfaceIndexPtr->data[out][0],
1118 VB->BackfaceIndexPtr->data[in][0] );
1119 }
1120
1121 if (VB->EdgeFlag) {
1122 VB->EdgeFlag[dst] = VB->EdgeFlag[out] || force_boundary;
1123 }
1124
1125 _tnl_generic_interp(ctx, t, dst, out, in, force_boundary);
1126 }
1127
_tnl_generic_copy_pv_extras(struct gl_context * ctx,GLuint dst,GLuint src)1128 void _tnl_generic_copy_pv_extras( struct gl_context *ctx,
1129 GLuint dst, GLuint src )
1130 {
1131 struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
1132
1133 /* See above comment:
1134 */
1135 if (VB->BackfaceColorPtr && VB->BackfaceColorPtr->stride) {
1136 COPY_4FV( VB->BackfaceColorPtr->data[dst],
1137 VB->BackfaceColorPtr->data[src] );
1138 }
1139
1140 if (VB->BackfaceSecondaryColorPtr) {
1141 COPY_4FV( VB->BackfaceSecondaryColorPtr->data[dst],
1142 VB->BackfaceSecondaryColorPtr->data[src] );
1143 }
1144
1145 if (VB->BackfaceIndexPtr) {
1146 VB->BackfaceIndexPtr->data[dst][0] = VB->BackfaceIndexPtr->data[src][0];
1147 }
1148
1149 _tnl_generic_copy_pv(ctx, dst, src);
1150 }
1151
1152
1153