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
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include <strings.h>
29
30 #include "main/glheader.h"
31 #include "main/macros.h"
32 #include "main/enums.h"
33
34 #include "tnl/t_context.h"
35 #include "intel_batchbuffer.h"
36
37 #include "i915_reg.h"
38 #include "i915_context.h"
39 #include "i915_program.h"
40
41
42 #define A0_DEST( reg ) (((reg)&UREG_TYPE_NR_MASK)>>UREG_A0_DEST_SHIFT_LEFT)
43 #define D0_DEST( reg ) (((reg)&UREG_TYPE_NR_MASK)>>UREG_A0_DEST_SHIFT_LEFT)
44 #define T0_DEST( reg ) (((reg)&UREG_TYPE_NR_MASK)>>UREG_A0_DEST_SHIFT_LEFT)
45 #define A0_SRC0( reg ) (((reg)&UREG_MASK)>>UREG_A0_SRC0_SHIFT_LEFT)
46 #define A1_SRC0( reg ) (((reg)&UREG_MASK)<<UREG_A1_SRC0_SHIFT_RIGHT)
47 #define A1_SRC1( reg ) (((reg)&UREG_MASK)>>UREG_A1_SRC1_SHIFT_LEFT)
48 #define A2_SRC1( reg ) (((reg)&UREG_MASK)<<UREG_A2_SRC1_SHIFT_RIGHT)
49 #define A2_SRC2( reg ) (((reg)&UREG_MASK)>>UREG_A2_SRC2_SHIFT_LEFT)
50
51 /* These are special, and don't have swizzle/negate bits.
52 */
53 #define T0_SAMPLER( reg ) (GET_UREG_NR(reg)<<T0_SAMPLER_NR_SHIFT)
54 #define T1_ADDRESS_REG( reg ) ((GET_UREG_NR(reg)<<T1_ADDRESS_REG_NR_SHIFT) | \
55 (GET_UREG_TYPE(reg)<<T1_ADDRESS_REG_TYPE_SHIFT))
56
57
58 /* Macros for translating UREG's into the various register fields used
59 * by the I915 programmable unit.
60 */
61 #define UREG_A0_DEST_SHIFT_LEFT (UREG_TYPE_SHIFT - A0_DEST_TYPE_SHIFT)
62 #define UREG_A0_SRC0_SHIFT_LEFT (UREG_TYPE_SHIFT - A0_SRC0_TYPE_SHIFT)
63 #define UREG_A1_SRC0_SHIFT_RIGHT (A1_SRC0_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT)
64 #define UREG_A1_SRC1_SHIFT_LEFT (UREG_TYPE_SHIFT - A1_SRC1_TYPE_SHIFT)
65 #define UREG_A2_SRC1_SHIFT_RIGHT (A2_SRC1_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT)
66 #define UREG_A2_SRC2_SHIFT_LEFT (UREG_TYPE_SHIFT - A2_SRC2_TYPE_SHIFT)
67
68 #define UREG_MASK 0xffffff00
69 #define UREG_TYPE_NR_MASK ((REG_TYPE_MASK << UREG_TYPE_SHIFT) | \
70 (REG_NR_MASK << UREG_NR_SHIFT))
71
72
73 #define I915_CONSTFLAG_PARAM 0x1f
74
75 GLuint
i915_get_temp(struct i915_fragment_program * p)76 i915_get_temp(struct i915_fragment_program *p)
77 {
78 int bit = ffs(~p->temp_flag);
79 if (!bit) {
80 fprintf(stderr, "%s: out of temporaries\n", __FILE__);
81 exit(1);
82 }
83
84 p->temp_flag |= 1 << (bit - 1);
85 return UREG(REG_TYPE_R, (bit - 1));
86 }
87
88
89 GLuint
i915_get_utemp(struct i915_fragment_program * p)90 i915_get_utemp(struct i915_fragment_program * p)
91 {
92 int bit = ffs(~p->utemp_flag);
93 if (!bit) {
94 fprintf(stderr, "%s: out of temporaries\n", __FILE__);
95 exit(1);
96 }
97
98 p->utemp_flag |= 1 << (bit - 1);
99 return UREG(REG_TYPE_U, (bit - 1));
100 }
101
102 void
i915_release_utemps(struct i915_fragment_program * p)103 i915_release_utemps(struct i915_fragment_program *p)
104 {
105 p->utemp_flag = ~0x7;
106 }
107
108
109 GLuint
i915_emit_decl(struct i915_fragment_program * p,GLuint type,GLuint nr,GLuint d0_flags)110 i915_emit_decl(struct i915_fragment_program *p,
111 GLuint type, GLuint nr, GLuint d0_flags)
112 {
113 GLuint reg = UREG(type, nr);
114
115 if (type == REG_TYPE_T) {
116 if (p->decl_t & (1 << nr))
117 return reg;
118
119 p->decl_t |= (1 << nr);
120 }
121 else if (type == REG_TYPE_S) {
122 if (p->decl_s & (1 << nr))
123 return reg;
124
125 p->decl_s |= (1 << nr);
126 }
127 else
128 return reg;
129
130 *(p->decl++) = (D0_DCL | D0_DEST(reg) | d0_flags);
131 *(p->decl++) = D1_MBZ;
132 *(p->decl++) = D2_MBZ;
133 assert(p->decl <= p->declarations + ARRAY_SIZE(p->declarations));
134
135 p->nr_decl_insn++;
136 return reg;
137 }
138
139 GLuint
i915_emit_arith(struct i915_fragment_program * p,GLuint op,GLuint dest,GLuint mask,GLuint saturate,GLuint src0,GLuint src1,GLuint src2)140 i915_emit_arith(struct i915_fragment_program * p,
141 GLuint op,
142 GLuint dest,
143 GLuint mask,
144 GLuint saturate, GLuint src0, GLuint src1, GLuint src2)
145 {
146 GLuint c[3];
147 GLuint nr_const = 0;
148
149 assert(GET_UREG_TYPE(dest) != REG_TYPE_CONST);
150 dest = UREG(GET_UREG_TYPE(dest), GET_UREG_NR(dest));
151 assert(dest);
152
153 if (GET_UREG_TYPE(src0) == REG_TYPE_CONST)
154 c[nr_const++] = 0;
155 if (GET_UREG_TYPE(src1) == REG_TYPE_CONST)
156 c[nr_const++] = 1;
157 if (GET_UREG_TYPE(src2) == REG_TYPE_CONST)
158 c[nr_const++] = 2;
159
160 /* Recursively call this function to MOV additional const values
161 * into temporary registers. Use utemp registers for this -
162 * currently shouldn't be possible to run out, but keep an eye on
163 * this.
164 */
165 if (nr_const > 1) {
166 GLuint s[3], first, i, old_utemp_flag;
167
168 s[0] = src0;
169 s[1] = src1;
170 s[2] = src2;
171 old_utemp_flag = p->utemp_flag;
172
173 first = GET_UREG_NR(s[c[0]]);
174 for (i = 1; i < nr_const; i++) {
175 if (GET_UREG_NR(s[c[i]]) != first) {
176 GLuint tmp = i915_get_utemp(p);
177
178 i915_emit_arith(p, A0_MOV, tmp, A0_DEST_CHANNEL_ALL, 0,
179 s[c[i]], 0, 0);
180 s[c[i]] = tmp;
181 }
182 }
183
184 src0 = s[0];
185 src1 = s[1];
186 src2 = s[2];
187 p->utemp_flag = old_utemp_flag; /* restore */
188 }
189
190 if (p->csr >= p->program + ARRAY_SIZE(p->program)) {
191 i915_program_error(p, "Program contains too many instructions");
192 return UREG_BAD;
193 }
194
195 *(p->csr++) = (op | A0_DEST(dest) | mask | saturate | A0_SRC0(src0));
196 *(p->csr++) = (A1_SRC0(src0) | A1_SRC1(src1));
197 *(p->csr++) = (A2_SRC1(src1) | A2_SRC2(src2));
198
199 if (GET_UREG_TYPE(dest) == REG_TYPE_R)
200 p->register_phases[GET_UREG_NR(dest)] = p->nr_tex_indirect;
201
202 p->nr_alu_insn++;
203 return dest;
204 }
205
get_free_rreg(struct i915_fragment_program * p,GLuint live_regs)206 static GLuint get_free_rreg (struct i915_fragment_program *p,
207 GLuint live_regs)
208 {
209 int bit = ffs(~live_regs);
210 if (!bit) {
211 i915_program_error(p, "Can't find free R reg");
212 return UREG_BAD;
213 }
214 return UREG(REG_TYPE_R, bit - 1);
215 }
216
i915_emit_texld(struct i915_fragment_program * p,GLuint live_regs,GLuint dest,GLuint destmask,GLuint sampler,GLuint coord,GLuint op)217 GLuint i915_emit_texld( struct i915_fragment_program *p,
218 GLuint live_regs,
219 GLuint dest,
220 GLuint destmask,
221 GLuint sampler,
222 GLuint coord,
223 GLuint op )
224 {
225 if (coord != UREG(GET_UREG_TYPE(coord), GET_UREG_NR(coord))) {
226 /* With the help of the "needed registers" table created earlier, pick
227 * a register we can MOV the swizzled TC to (since TEX doesn't support
228 * swizzled sources) */
229 GLuint swizCoord = get_free_rreg(p, live_regs);
230 if (swizCoord == UREG_BAD)
231 return 0;
232
233 i915_emit_arith( p, A0_MOV, swizCoord, A0_DEST_CHANNEL_ALL, 0, coord, 0, 0 );
234 coord = swizCoord;
235 }
236
237 /* Don't worry about saturate as we only support texture formats
238 * that are always in the 0..1 range.
239 */
240 if (destmask != A0_DEST_CHANNEL_ALL) {
241 GLuint tmp = i915_get_utemp(p);
242 i915_emit_texld( p, 0, tmp, A0_DEST_CHANNEL_ALL, sampler, coord, op );
243 i915_emit_arith( p, A0_MOV, dest, destmask, 0, tmp, 0, 0 );
244 return dest;
245 }
246 else {
247 assert(GET_UREG_TYPE(dest) != REG_TYPE_CONST);
248 assert(dest == UREG(GET_UREG_TYPE(dest), GET_UREG_NR(dest)));
249 /* Can't use unsaved temps for coords, as the phase boundary would result
250 * in the contents becoming undefined.
251 */
252 assert(GET_UREG_TYPE(coord) != REG_TYPE_U);
253
254 if ((GET_UREG_TYPE(coord) != REG_TYPE_R) &&
255 (GET_UREG_TYPE(coord) != REG_TYPE_OC) &&
256 (GET_UREG_TYPE(coord) != REG_TYPE_OD) &&
257 (GET_UREG_TYPE(coord) != REG_TYPE_T)) {
258 GLuint tmpCoord = get_free_rreg(p, live_regs);
259
260 if (tmpCoord == UREG_BAD)
261 return 0;
262
263 i915_emit_arith(p, A0_MOV, tmpCoord, A0_DEST_CHANNEL_ALL, 0, coord, 0, 0);
264 coord = tmpCoord;
265 }
266
267 /* Output register being oC or oD defines a phase boundary */
268 if (GET_UREG_TYPE(dest) == REG_TYPE_OC ||
269 GET_UREG_TYPE(dest) == REG_TYPE_OD)
270 p->nr_tex_indirect++;
271
272 /* Reading from an r# register whose contents depend on output of the
273 * current phase defines a phase boundary.
274 */
275 if (GET_UREG_TYPE(coord) == REG_TYPE_R &&
276 p->register_phases[GET_UREG_NR(coord)] == p->nr_tex_indirect)
277 p->nr_tex_indirect++;
278
279 if (p->csr >= p->program + ARRAY_SIZE(p->program)) {
280 i915_program_error(p, "Program contains too many instructions");
281 return UREG_BAD;
282 }
283
284 *(p->csr++) = (op |
285 T0_DEST( dest ) |
286 T0_SAMPLER( sampler ));
287
288 *(p->csr++) = T1_ADDRESS_REG( coord );
289 *(p->csr++) = T2_MBZ;
290
291 if (GET_UREG_TYPE(dest) == REG_TYPE_R)
292 p->register_phases[GET_UREG_NR(dest)] = p->nr_tex_indirect;
293
294 p->nr_tex_insn++;
295 return dest;
296 }
297 }
298
299
300 GLuint
i915_emit_const1f(struct i915_fragment_program * p,GLfloat c0)301 i915_emit_const1f(struct i915_fragment_program * p, GLfloat c0)
302 {
303 GLint reg, idx;
304
305 if (c0 == 0.0)
306 return swizzle(UREG(REG_TYPE_R, 0), ZERO, ZERO, ZERO, ZERO);
307 if (c0 == 1.0)
308 return swizzle(UREG(REG_TYPE_R, 0), ONE, ONE, ONE, ONE);
309
310 for (reg = 0; reg < I915_MAX_CONSTANT; reg++) {
311 if (p->constant_flags[reg] == I915_CONSTFLAG_PARAM)
312 continue;
313 for (idx = 0; idx < 4; idx++) {
314 if (!(p->constant_flags[reg] & (1 << idx)) ||
315 p->constant[reg][idx] == c0) {
316 p->constant[reg][idx] = c0;
317 p->constant_flags[reg] |= 1 << idx;
318 if (reg + 1 > p->nr_constants)
319 p->nr_constants = reg + 1;
320 return swizzle(UREG(REG_TYPE_CONST, reg), idx, ZERO, ZERO, ONE);
321 }
322 }
323 }
324
325 fprintf(stderr, "%s: out of constants\n", __func__);
326 p->error = 1;
327 return 0;
328 }
329
330 GLuint
i915_emit_const2f(struct i915_fragment_program * p,GLfloat c0,GLfloat c1)331 i915_emit_const2f(struct i915_fragment_program * p, GLfloat c0, GLfloat c1)
332 {
333 GLint reg, idx;
334
335 if (c0 == 0.0)
336 return swizzle(i915_emit_const1f(p, c1), ZERO, X, Z, W);
337 if (c0 == 1.0)
338 return swizzle(i915_emit_const1f(p, c1), ONE, X, Z, W);
339
340 if (c1 == 0.0)
341 return swizzle(i915_emit_const1f(p, c0), X, ZERO, Z, W);
342 if (c1 == 1.0)
343 return swizzle(i915_emit_const1f(p, c0), X, ONE, Z, W);
344
345 for (reg = 0; reg < I915_MAX_CONSTANT; reg++) {
346 if (p->constant_flags[reg] == 0xf ||
347 p->constant_flags[reg] == I915_CONSTFLAG_PARAM)
348 continue;
349 for (idx = 0; idx < 3; idx++) {
350 if (!(p->constant_flags[reg] & (3 << idx))) {
351 p->constant[reg][idx] = c0;
352 p->constant[reg][idx + 1] = c1;
353 p->constant_flags[reg] |= 3 << idx;
354 if (reg + 1 > p->nr_constants)
355 p->nr_constants = reg + 1;
356 return swizzle(UREG(REG_TYPE_CONST, reg), idx, idx + 1, ZERO,
357 ONE);
358 }
359 }
360 }
361
362 fprintf(stderr, "%s: out of constants\n", __func__);
363 p->error = 1;
364 return 0;
365 }
366
367
368
369 GLuint
i915_emit_const4f(struct i915_fragment_program * p,GLfloat c0,GLfloat c1,GLfloat c2,GLfloat c3)370 i915_emit_const4f(struct i915_fragment_program * p,
371 GLfloat c0, GLfloat c1, GLfloat c2, GLfloat c3)
372 {
373 GLint reg;
374
375 for (reg = 0; reg < I915_MAX_CONSTANT; reg++) {
376 if (p->constant_flags[reg] == 0xf &&
377 p->constant[reg][0] == c0 &&
378 p->constant[reg][1] == c1 &&
379 p->constant[reg][2] == c2 && p->constant[reg][3] == c3) {
380 return UREG(REG_TYPE_CONST, reg);
381 }
382 else if (p->constant_flags[reg] == 0) {
383 p->constant[reg][0] = c0;
384 p->constant[reg][1] = c1;
385 p->constant[reg][2] = c2;
386 p->constant[reg][3] = c3;
387 p->constant_flags[reg] = 0xf;
388 if (reg + 1 > p->nr_constants)
389 p->nr_constants = reg + 1;
390 return UREG(REG_TYPE_CONST, reg);
391 }
392 }
393
394 fprintf(stderr, "%s: out of constants\n", __func__);
395 p->error = 1;
396 return 0;
397 }
398
399
400 GLuint
i915_emit_const4fv(struct i915_fragment_program * p,const GLfloat * c)401 i915_emit_const4fv(struct i915_fragment_program * p, const GLfloat * c)
402 {
403 return i915_emit_const4f(p, c[0], c[1], c[2], c[3]);
404 }
405
406
407 GLuint
i915_emit_param4fv(struct i915_fragment_program * p,const GLfloat * values)408 i915_emit_param4fv(struct i915_fragment_program * p, const GLfloat * values)
409 {
410 GLint reg, i;
411
412 for (i = 0; i < p->nr_params; i++) {
413 if (p->param[i].values == values)
414 return UREG(REG_TYPE_CONST, p->param[i].reg);
415 }
416
417
418 for (reg = 0; reg < I915_MAX_CONSTANT; reg++) {
419 if (p->constant_flags[reg] == 0) {
420 p->constant_flags[reg] = I915_CONSTFLAG_PARAM;
421 i = p->nr_params++;
422
423 p->param[i].values = values;
424 p->param[i].reg = reg;
425 p->params_uptodate = 0;
426
427 if (reg + 1 > p->nr_constants)
428 p->nr_constants = reg + 1;
429 return UREG(REG_TYPE_CONST, reg);
430 }
431 }
432
433 fprintf(stderr, "%s: out of constants\n", __func__);
434 p->error = 1;
435 return 0;
436 }
437
438 /* Warning the user about program errors seems to be quite valuable, from
439 * our bug reports. It unfortunately means piglit reporting errors
440 * when we fall back to software due to an unsupportable program, though.
441 */
442 void
i915_program_error(struct i915_fragment_program * p,const char * fmt,...)443 i915_program_error(struct i915_fragment_program *p, const char *fmt, ...)
444 {
445 if (unlikely((INTEL_DEBUG & (DEBUG_WM | DEBUG_PERF)) != 0)) {
446 va_list args;
447
448 fprintf(stderr, "i915_program_error: ");
449 va_start(args, fmt);
450 vfprintf(stderr, fmt, args);
451 va_end(args);
452
453 fprintf(stderr, "\n");
454 }
455 p->error = 1;
456 }
457
458
459 void
i915_init_program(struct i915_context * i915,struct i915_fragment_program * p)460 i915_init_program(struct i915_context *i915, struct i915_fragment_program *p)
461 {
462 struct gl_context *ctx = &i915->intel.ctx;
463
464 p->translated = 0;
465 p->params_uptodate = 0;
466 p->on_hardware = 0;
467 p->error = 0;
468
469 memset(&p->register_phases, 0, sizeof(p->register_phases));
470 p->nr_tex_indirect = 1;
471 p->nr_tex_insn = 0;
472 p->nr_alu_insn = 0;
473 p->nr_decl_insn = 0;
474
475 p->ctx = ctx;
476 memset(p->constant_flags, 0, sizeof(p->constant_flags));
477
478 p->nr_constants = 0;
479 p->csr = p->program;
480 p->decl = p->declarations;
481 p->decl_s = 0;
482 p->decl_t = 0;
483 p->temp_flag = 0xffff000;
484 p->utemp_flag = ~0x7;
485 p->wpos_tex = I915_WPOS_TEX_INVALID;
486 p->depth_written = 0;
487 p->nr_params = 0;
488
489 *(p->decl++) = _3DSTATE_PIXEL_SHADER_PROGRAM;
490 }
491
492
493 void
i915_fini_program(struct i915_fragment_program * p)494 i915_fini_program(struct i915_fragment_program *p)
495 {
496 GLuint program_size = p->csr - p->program;
497 GLuint decl_size = p->decl - p->declarations;
498
499 if (p->nr_tex_indirect > I915_MAX_TEX_INDIRECT) {
500 i915_program_error(p, "Exceeded max nr indirect texture lookups "
501 "(%d out of %d)",
502 p->nr_tex_indirect, I915_MAX_TEX_INDIRECT);
503 }
504
505 if (p->nr_tex_insn > I915_MAX_TEX_INSN) {
506 i915_program_error(p, "Exceeded max TEX instructions (%d out of %d)",
507 p->nr_tex_insn, I915_MAX_TEX_INSN);
508 }
509
510 if (p->nr_alu_insn > I915_MAX_ALU_INSN)
511 i915_program_error(p, "Exceeded max ALU instructions (%d out of %d)",
512 p->nr_alu_insn, I915_MAX_ALU_INSN);
513
514 if (p->nr_decl_insn > I915_MAX_DECL_INSN) {
515 i915_program_error(p, "Exceeded max DECL instructions (%d out of %d)",
516 p->nr_decl_insn, I915_MAX_DECL_INSN);
517 }
518
519 if (p->error) {
520 p->FragProg.arb.NumNativeInstructions = 0;
521 p->FragProg.arb.NumNativeAluInstructions = 0;
522 p->FragProg.arb.NumNativeTexInstructions = 0;
523 p->FragProg.arb.NumNativeTexIndirections = 0;
524 }
525 else {
526 p->FragProg.arb.NumNativeInstructions = (p->nr_alu_insn +
527 p->nr_tex_insn +
528 p->nr_decl_insn);
529 p->FragProg.arb.NumNativeAluInstructions = p->nr_alu_insn;
530 p->FragProg.arb.NumNativeTexInstructions = p->nr_tex_insn;
531 p->FragProg.arb.NumNativeTexIndirections = p->nr_tex_indirect;
532 }
533
534 p->declarations[0] |= program_size + decl_size - 2;
535 }
536
537 void
i915_upload_program(struct i915_context * i915,struct i915_fragment_program * p)538 i915_upload_program(struct i915_context *i915,
539 struct i915_fragment_program *p)
540 {
541 GLuint program_size = p->csr - p->program;
542 GLuint decl_size = p->decl - p->declarations;
543
544 if (p->error)
545 return;
546
547 /* Could just go straight to the batchbuffer from here:
548 */
549 if (i915->state.ProgramSize != (program_size + decl_size) ||
550 memcmp(i915->state.Program + decl_size, p->program,
551 program_size * sizeof(int)) != 0) {
552 I915_STATECHANGE(i915, I915_UPLOAD_PROGRAM);
553 memcpy(i915->state.Program, p->declarations, decl_size * sizeof(int));
554 memcpy(i915->state.Program + decl_size, p->program,
555 program_size * sizeof(int));
556 i915->state.ProgramSize = decl_size + program_size;
557 }
558
559 /* Always seemed to get a failure if I used memcmp() to
560 * shortcircuit this state upload. Needs further investigation?
561 */
562 if (p->nr_constants) {
563 GLuint nr = p->nr_constants;
564
565 I915_ACTIVESTATE(i915, I915_UPLOAD_CONSTANTS, 1);
566 I915_STATECHANGE(i915, I915_UPLOAD_CONSTANTS);
567
568 i915->state.Constant[0] = _3DSTATE_PIXEL_SHADER_CONSTANTS | ((nr) * 4);
569 i915->state.Constant[1] = (1 << (nr - 1)) | ((1 << (nr - 1)) - 1);
570
571 memcpy(&i915->state.Constant[2], p->constant, 4 * sizeof(int) * (nr));
572 i915->state.ConstantSize = 2 + (nr) * 4;
573
574 if (0) {
575 GLuint i;
576 for (i = 0; i < nr; i++) {
577 fprintf(stderr, "const[%d]: %f %f %f %f\n", i,
578 p->constant[i][0],
579 p->constant[i][1], p->constant[i][2], p->constant[i][3]);
580 }
581 }
582 }
583 else {
584 I915_ACTIVESTATE(i915, I915_UPLOAD_CONSTANTS, 0);
585 }
586
587 p->on_hardware = 1;
588 }
589