state_evaluators.c@ 52350

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1	/* Copyright (c) 2001, Stanford University
2	* All rights reserved
3	*
4	* See the file LICENSE.txt for information on redistributing this software.
5	*/
6
7	/*
8	* The majority of this file is pulled from Mesa 4.0.x with the
9	* permission of Brian Paul
10	*/
11
12	#include <stdio.h>
13	#include "cr_mem.h"
14	#include "state.h"
15	#include "state/cr_statetypes.h"
16	#include "state_internals.h"
17
18	/* free the 1-D evaluator map */
19	static void
20	free_1d_map(CRContext *ctx, GLenum map)
21	{
22	CREvaluatorState *e = &ctx->eval;
23	const GLint k = map - GL_MAP1_COLOR_4;
24
25	crFree( e->eval1D[k].coeff );
26	}
27
28	/* free the 2-D evaluator map */
29	static void
30	free_2d_map(CRContext *ctx, GLenum map)
31	{
32	CREvaluatorState *e = &ctx->eval;
33	const GLint k = map - GL_MAP2_COLOR_4;
34
35	crFree( e->eval2D[k].coeff );
36	}
37
38	/* Initialize a 1-D evaluator map */
39	static void
40	init_1d_map(CRContext ctx, GLenum map, int n, const float initial)
41	{
42	CREvaluatorState *e = &ctx->eval;
43	CRStateBits *sb = GetCurrentBits();
44	CREvaluatorBits *eb = &(sb->eval);
45	GLint i;
46	const GLint k = map - GL_MAP1_COLOR_4;
47	CRASSERT(k >= 0);
48	CRASSERT(k < GLEVAL_TOT);
49	e->eval1D[k].u1 = 0.0;
50	e->eval1D[k].u2 = 1.0;
51	e->eval1D[k].du = 0.0;
52	e->eval1D[k].order = 1;
53	e->eval1D[k].coeff = (GLfloat ) crAlloc(n sizeof(GLfloat));
54	for (i = 0; i < n; i++)
55	e->eval1D[k].coeff[i] = initial[i];
56	RESET(eb->eval1D[i], ctx->bitid);
57	}
58
59
60	/* Initialize a 2-D evaluator map */
61	static void
62	init_2d_map(CRContext ctx, GLenum map, int n, const float initial)
63	{
64	CREvaluatorState *e = &ctx->eval;
65	CRStateBits *sb = GetCurrentBits();
66	CREvaluatorBits *eb = &(sb->eval);
67	GLint i;
68	const GLint k = map - GL_MAP2_COLOR_4;
69	CRASSERT(k >= 0);
70	CRASSERT(k < GLEVAL_TOT);
71	e->eval2D[k].u1 = 0.0;
72	e->eval2D[k].u2 = 1.0;
73	e->eval2D[k].du = 0.0;
74	e->eval2D[k].v1 = 0.0;
75	e->eval2D[k].v2 = 1.0;
76	e->eval2D[k].dv = 0.0;
77	e->eval2D[k].uorder = 1;
78	e->eval2D[k].vorder = 1;
79	e->eval2D[k].coeff = (GLfloat ) crAlloc(n sizeof(GLfloat));
80	for (i = 0; i < n; i++)
81	e->eval2D[k].coeff[i] = initial[i];
82	RESET(eb->eval2D[i], ctx->bitid);
83	}
84
85	void
86	crStateEvaluatorDestroy(CRContext *ctx)
87	{
88	free_1d_map(ctx, GL_MAP1_VERTEX_3);
89	free_1d_map(ctx, GL_MAP1_VERTEX_4);
90	free_1d_map(ctx, GL_MAP1_INDEX);
91	free_1d_map(ctx, GL_MAP1_COLOR_4);
92	free_1d_map(ctx, GL_MAP1_NORMAL);
93	free_1d_map(ctx, GL_MAP1_TEXTURE_COORD_1);
94	free_1d_map(ctx, GL_MAP1_TEXTURE_COORD_2);
95	free_1d_map(ctx, GL_MAP1_TEXTURE_COORD_3);
96	free_1d_map(ctx, GL_MAP1_TEXTURE_COORD_4);
97
98	free_2d_map(ctx, GL_MAP2_VERTEX_3);
99	free_2d_map(ctx, GL_MAP2_VERTEX_4);
100	free_2d_map(ctx, GL_MAP2_INDEX);
101	free_2d_map(ctx, GL_MAP2_COLOR_4);
102	free_2d_map(ctx, GL_MAP2_NORMAL);
103	free_2d_map(ctx, GL_MAP2_TEXTURE_COORD_1);
104	free_2d_map(ctx, GL_MAP2_TEXTURE_COORD_2);
105	free_2d_map(ctx, GL_MAP2_TEXTURE_COORD_3);
106	free_2d_map(ctx, GL_MAP2_TEXTURE_COORD_4);
107	}
108
109	void
110	crStateEvaluatorInit(CRContext *ctx)
111	{
112	CREvaluatorState *e = &ctx->eval;
113	CRStateBits *sb = GetCurrentBits();
114	CREvaluatorBits *eb = &(sb->eval);
115	static GLfloat vertex[4] = { 0.0, 0.0, 0.0, 1.0 };
116	static GLfloat normal[3] = { 0.0, 0.0, 1.0 };
117	static GLfloat index[1] = { 1.0 };
118	static GLfloat color[4] = { 1.0, 1.0, 1.0, 1.0 };
119	static GLfloat texcoord[4] = { 0.0, 0.0, 0.0, 1.0 };
120
121	e->autoNormal = GL_FALSE;
122	RESET(eb->enable, ctx->bitid);
123
124	init_1d_map(ctx, GL_MAP1_VERTEX_3, 3, vertex);
125	init_1d_map(ctx, GL_MAP1_VERTEX_4, 4, vertex);
126	init_1d_map(ctx, GL_MAP1_INDEX, 1, index);
127	init_1d_map(ctx, GL_MAP1_COLOR_4, 4, color);
128	init_1d_map(ctx, GL_MAP1_NORMAL, 3, normal);
129	init_1d_map(ctx, GL_MAP1_TEXTURE_COORD_1, 1, texcoord);
130	init_1d_map(ctx, GL_MAP1_TEXTURE_COORD_2, 2, texcoord);
131	init_1d_map(ctx, GL_MAP1_TEXTURE_COORD_3, 3, texcoord);
132	init_1d_map(ctx, GL_MAP1_TEXTURE_COORD_4, 4, texcoord);
133
134	init_2d_map(ctx, GL_MAP2_VERTEX_3, 3, vertex);
135	init_2d_map(ctx, GL_MAP2_VERTEX_4, 4, vertex);
136	init_2d_map(ctx, GL_MAP2_INDEX, 1, index);
137	init_2d_map(ctx, GL_MAP2_COLOR_4, 4, color);
138	init_2d_map(ctx, GL_MAP2_NORMAL, 3, normal);
139	init_2d_map(ctx, GL_MAP2_TEXTURE_COORD_1, 1, texcoord);
140	init_2d_map(ctx, GL_MAP2_TEXTURE_COORD_2, 2, texcoord);
141	init_2d_map(ctx, GL_MAP2_TEXTURE_COORD_3, 3, texcoord);
142	init_2d_map(ctx, GL_MAP2_TEXTURE_COORD_4, 4, texcoord);
143
144	e->un1D = 1;
145	e->u11D = 0.0;
146	e->u21D = 1.0;
147	RESET(eb->grid1D, ctx->bitid);
148
149	e->un2D = 1;
150	e->vn2D = 1;
151	e->u12D = 0.0;
152	e->u22D = 1.0;
153	e->v12D = 0.0;
154	e->v22D = 1.0;
155	RESET(eb->grid1D, ctx->bitid);
156
157	RESET(eb->dirty, ctx->bitid);
158	}
159
160	const int gleval_sizes[] = { 4, 1, 3, 1, 2, 3, 4, 3, 4 };
161
162	/**********************************************************************/
163	/* Copy and deallocate control points */
164	/**********************************************************************/
165
166
167	/*
168	* Copy 1-parametric evaluator control points from user-specified
169	* memory space to a buffer of contiguous control points.
170	* Input: see glMap1f for details
171	* Return: pointer to buffer of contiguous control points or NULL if out
172	* of memory.
173	*/
174	static GLfloat *
175	_copy_map_points1f(GLint size, GLint ustride, GLint uorder,
176	const GLfloat * points)
177	{
178	GLfloat buffer, p;
179	GLint i, k;
180
181	if (!points \|\| size == 0) {
182	return NULL;
183	}
184
185	buffer = (GLfloat ) crAlloc(uorder size * sizeof(GLfloat));
186
187	if (buffer)
188	for (i = 0, p = buffer; i < uorder; i++, points += ustride)
189	for (k = 0; k < size; k++)
190	*p++ = points[k];
191
192	return buffer;
193	}
194
195
196
197	/*
198	* Same as above but convert doubles to floats.
199	*/
200	static GLfloat *
201	_copy_map_points1d(GLint size, GLint ustride, GLint uorder,
202	const GLdouble * points)
203	{
204	GLfloat buffer, p;
205	GLint i, k;
206
207	if (!points \|\| size == 0) {
208	return NULL;
209	}
210
211	buffer = (GLfloat ) crAlloc(uorder size * sizeof(GLfloat));
212
213	if (buffer)
214	for (i = 0, p = buffer; i < uorder; i++, points += ustride)
215	for (k = 0; k < size; k++)
216	*p++ = (GLfloat) points[k];
217
218	return buffer;
219	}
220
221
222
223	/*
224	* Copy 2-parametric evaluator control points from user-specified
225	* memory space to a buffer of contiguous control points.
226	* Additional memory is allocated to be used by the Horner and
227	* de Casteljau evaluation schemes.
228	*
229	* Input: see glMap2f for details
230	* Return: pointer to buffer of contiguous control points or NULL if out
231	* of memory.
232	*/
233	static GLfloat *
234	_copy_map_points2f(GLint size,
235	GLint ustride, GLint uorder,
236	GLint vstride, GLint vorder, const GLfloat * points)
237	{
238	GLfloat buffer, p;
239	GLint i, j, k, dsize, hsize;
240	GLint uinc;
241
242	if (!points \|\| size == 0) {
243	return NULL;
244	}
245
246	/* max(uorder, vorder) additional points are used in */
247	/* Horner evaluation and uordervorder additional /
248	/* values are needed for de Casteljau */
249	dsize = (uorder == 2 && vorder == 2) ? 0 : uorder * vorder;
250	hsize = (uorder > vorder ? uorder : vorder) * size;
251
252	if (hsize > dsize)
253	buffer =
254	(GLfloat ) crAlloc((uorder vorder * size + hsize) * sizeof(GLfloat));
255	else
256	buffer =
257	(GLfloat ) crAlloc((uorder vorder * size + dsize) * sizeof(GLfloat));
258
259	/* compute the increment value for the u-loop */
260	uinc = ustride - vorder * vstride;
261
262	if (buffer)
263	for (i = 0, p = buffer; i < uorder; i++, points += uinc)
264	for (j = 0; j < vorder; j++, points += vstride)
265	for (k = 0; k < size; k++)
266	*p++ = points[k];
267
268	return buffer;
269	}
270
271
272
273	/*
274	* Same as above but convert doubles to floats.
275	*/
276	static GLfloat *
277	_copy_map_points2d(GLint size,
278	GLint ustride, GLint uorder,
279	GLint vstride, GLint vorder, const GLdouble * points)
280	{
281	GLfloat buffer, p;
282	GLint i, j, k, hsize, dsize;
283	GLint uinc;
284
285	if (!points \|\| size == 0) {
286	return NULL;
287	}
288
289	/* max(uorder, vorder) additional points are used in */
290	/* Horner evaluation and uordervorder additional /
291	/* values are needed for de Casteljau */
292	dsize = (uorder == 2 && vorder == 2) ? 0 : uorder * vorder;
293	hsize = (uorder > vorder ? uorder : vorder) * size;
294
295	if (hsize > dsize)
296	buffer =
297	(GLfloat ) crAlloc((uorder vorder * size + hsize) * sizeof(GLfloat));
298	else
299	buffer =
300	(GLfloat ) crAlloc((uorder vorder * size + dsize) * sizeof(GLfloat));
301
302	/* compute the increment value for the u-loop */
303	uinc = ustride - vorder * vstride;
304
305	if (buffer)
306	for (i = 0, p = buffer; i < uorder; i++, points += uinc)
307	for (j = 0; j < vorder; j++, points += vstride)
308	for (k = 0; k < size; k++)
309	*p++ = (GLfloat) points[k];
310
311	return buffer;
312	}
313
314
315
316
317	/**********************************************************************/
318	/* API entry points */
319	/**********************************************************************/
320
321
322	/*
323	* This does the work of glMap1[fd].
324	*/
325	static void
326	map1(GLenum target, GLfloat u1, GLfloat u2, GLint ustride,
327	GLint uorder, const GLvoid * points, GLenum type)
328	{
329	CRContext *g = GetCurrentContext();
330	CREvaluatorState *e = &(g->eval);
331	CRStateBits *sb = GetCurrentBits();
332	CREvaluatorBits *eb = &(sb->eval);
333	CRTextureState *t = &(g->texture);
334	GLint i;
335	GLint k;
336	GLfloat *pnts;
337
338	if (g->current.inBeginEnd) {
339	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
340	"Map1d called in begin/end");
341	return;
342	}
343
344	FLUSH();
345
346	CRASSERT(type == GL_FLOAT \|\| type == GL_DOUBLE);
347
348	if (u1 == u2) {
349	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap1d(u1==u2)");
350	return;
351	}
352	if (uorder < 1 \|\| uorder > MAX_EVAL_ORDER) {
353	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap1d(bad uorder)");
354	return;
355	}
356	if (!points) {
357	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
358	"glMap1d(null points)");
359	return;
360	}
361
362	i = target - GL_MAP1_COLOR_4;
363
364	k = gleval_sizes[i];
365
366	if (k == 0) {
367	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "glMap1d(k=0)");
368	return;
369	}
370
371	if (ustride < k) {
372	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap1d(bad ustride");
373	return;
374	}
375
376	if (t->curTextureUnit != 0) {
377	/* See OpenGL 1.2.1 spec, section F.2.13 */
378	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
379	"glMap1d(current texture unit must be zero)");
380	return;
381	}
382
383	switch (target) {
384	case GL_MAP1_VERTEX_3:
385	case GL_MAP1_VERTEX_4:
386	case GL_MAP1_INDEX:
387	case GL_MAP1_COLOR_4:
388	case GL_MAP1_NORMAL:
389	case GL_MAP1_TEXTURE_COORD_1:
390	case GL_MAP1_TEXTURE_COORD_2:
391	case GL_MAP1_TEXTURE_COORD_3:
392	case GL_MAP1_TEXTURE_COORD_4:
393	break;
394	default:
395	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "glMap1d(bad target)");
396	return;
397	}
398
399	/* make copy of the control points */
400	if (type == GL_FLOAT)
401	pnts = _copy_map_points1f(k, ustride, uorder, (GLfloat *) points);
402	else
403	pnts = _copy_map_points1d(k, ustride, uorder, (GLdouble *) points);
404
405	e->eval1D[i].order = uorder;
406	e->eval1D[i].u1 = u1;
407	e->eval1D[i].u2 = u2;
408	e->eval1D[i].du = 1.0f / (u2 - u1);
409	if (e->eval1D[i].coeff)
410	crFree(e->eval1D[i].coeff);
411	e->eval1D[i].coeff = pnts;
412
413	DIRTY(eb->dirty, g->neg_bitid);
414	DIRTY(eb->eval1D[i], g->neg_bitid);
415	}
416
417
418
419	void STATE_APIENTRY
420	crStateMap1f(GLenum target, GLfloat u1, GLfloat u2,
421	GLint stride, GLint order, const GLfloat * points)
422	{
423	map1(target, u1, u2, stride, order, points, GL_FLOAT);
424	}
425
426	void STATE_APIENTRY
427	crStateMap1d(GLenum target, GLdouble u1, GLdouble u2, GLint stride,
428	GLint order, const GLdouble * points)
429	{
430	map1(target, (GLfloat) u1, (GLfloat) u2, stride, order, points, GL_DOUBLE);
431	}
432
433	static void
434	map2(GLenum target, GLfloat u1, GLfloat u2, GLint ustride, GLint uorder,
435	GLfloat v1, GLfloat v2, GLint vstride, GLint vorder,
436	const GLvoid * points, GLenum type)
437	{
438	CRContext *g = GetCurrentContext();
439	CRStateBits *sb = GetCurrentBits();
440	CREvaluatorState *e = &(g->eval);
441	CREvaluatorBits *eb = &(sb->eval);
442	#if 0
443	CRTextureState *t = &(g->texture);
444	#endif
445	GLint i;
446	GLint k;
447	GLfloat *pnts;
448
449	if (g->current.inBeginEnd) {
450	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "glMap2d()");
451	return;
452	}
453
454	FLUSH();
455
456	if (u1 == u2) {
457	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap2d()");
458	return;
459	}
460
461	if (v1 == v2) {
462	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap2d()");
463	return;
464	}
465
466	if (uorder < 1 \|\| uorder > MAX_EVAL_ORDER) {
467	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap2d()");
468	return;
469	}
470
471	if (vorder < 1 \|\| vorder > MAX_EVAL_ORDER) {
472	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap2d()");
473	return;
474	}
475
476	if (g->extensions.NV_vertex_program) {
477	/* XXX FIXME */
478	i = target - GL_MAP2_COLOR_4;
479	} else {
480	i = target - GL_MAP2_COLOR_4;
481	}
482
483	k = gleval_sizes[i];
484
485	if (k == 0) {
486	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "glMap2d()");
487	return;
488	}
489
490	if (ustride < k) {
491	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap2d()");
492	return;
493	}
494	if (vstride < k) {
495	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMap2d()");
496	return;
497	}
498
499	#if 00
500	/* Disable this check for now - it looks like various OpenGL drivers
501	* don't do this error check. So, a bunch of the NVIDIA demos
502	* generate errors/warnings.
503	*/
504	if (t->curTextureUnit != 0) {
505	/* See OpenGL 1.2.1 spec, section F.2.13 */
506	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "glMap2d()");
507	return;
508	}
509	#endif
510
511	switch (target) {
512	case GL_MAP2_VERTEX_3:
513	case GL_MAP2_VERTEX_4:
514	case GL_MAP2_INDEX:
515	case GL_MAP2_COLOR_4:
516	case GL_MAP2_NORMAL:
517	case GL_MAP2_TEXTURE_COORD_1:
518	case GL_MAP2_TEXTURE_COORD_2:
519	case GL_MAP2_TEXTURE_COORD_3:
520	case GL_MAP2_TEXTURE_COORD_4:
521	break;
522	default:
523	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "glMap2d()");
524	return;
525	}
526
527	/* make copy of the control points */
528	if (type == GL_FLOAT)
529	pnts = _copy_map_points2f(k, ustride, uorder,
530	vstride, vorder, (GLfloat *) points);
531	else
532	pnts = _copy_map_points2d(k, ustride, uorder,
533	vstride, vorder, (GLdouble *) points);
534
535	e->eval2D[i].uorder = uorder;
536	e->eval2D[i].u1 = u1;
537	e->eval2D[i].u2 = u2;
538	e->eval2D[i].du = 1.0f / (u2 - u1);
539	e->eval2D[i].vorder = vorder;
540	e->eval2D[i].v1 = v1;
541	e->eval2D[i].v2 = v2;
542	e->eval2D[i].dv = 1.0f / (v2 - v1);
543	if (e->eval2D[i].coeff)
544	crFree(e->eval2D[i].coeff);
545	e->eval2D[i].coeff = pnts;
546
547	DIRTY(eb->dirty, g->neg_bitid);
548	DIRTY(eb->eval2D[i], g->neg_bitid);
549	}
550
551	void STATE_APIENTRY
552	crStateMap2f(GLenum target, GLfloat u1, GLfloat u2,
553	GLint ustride, GLint uorder,
554	GLfloat v1, GLfloat v2,
555	GLint vstride, GLint vorder, const GLfloat * points)
556	{
557	map2(target, u1, u2, ustride, uorder, v1, v2, vstride, vorder,
558	points, GL_FLOAT);
559	}
560
561
562	void STATE_APIENTRY
563	crStateMap2d(GLenum target, GLdouble u1, GLdouble u2,
564	GLint ustride, GLint uorder,
565	GLdouble v1, GLdouble v2,
566	GLint vstride, GLint vorder, const GLdouble * points)
567	{
568	map2(target, (GLfloat) u1, (GLfloat) u2, ustride, uorder,
569	(GLfloat) v1, (GLfloat) v2, vstride, vorder, points, GL_DOUBLE);
570	}
571
572	void STATE_APIENTRY
573	crStateGetMapdv(GLenum target, GLenum query, GLdouble * v)
574	{
575	CRContext *g = GetCurrentContext();
576	CRStateBits *sb = GetCurrentBits();
577	CREvaluatorState *e = &(g->eval);
578	GLint size;
579	GLint i, j;
580	(void) sb;
581
582	if (g->current.inBeginEnd) {
583	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
584	"Map1d called in begin/end");
585	return;
586	}
587
588	FLUSH();
589
590	i = target - GL_MAP1_COLOR_4;
591
592	if (i < 0 \|\| i >= GLEVAL_TOT) {
593	i = target - GL_MAP2_COLOR_4;
594
595	if (i < 0 \|\| i >= GLEVAL_TOT) {
596	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
597	"GetMapdv: invalid target: %d", target);
598	return;
599	}
600
601	switch (query) {
602	case GL_COEFF:
603	size = gleval_sizes[i] * e->eval2D[i].uorder * e->eval2D[i].vorder;
604	for (j = 0; j < size; j++) {
605	v[j] = e->eval2D[i].coeff[j];
606	}
607	break;
608	case GL_ORDER:
609	v[0] = (GLdouble) e->eval2D[i].uorder;
610	v[1] = (GLdouble) e->eval2D[i].vorder;
611	break;
612	case GL_DOMAIN:
613	v[0] = e->eval2D[i].u1;
614	v[1] = e->eval2D[i].u2;
615	v[2] = e->eval2D[i].v1;
616	v[3] = e->eval2D[i].v2;
617	break;
618	default:
619	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
620	"GetMapdv: invalid target: %d", target);
621	return;
622	}
623	}
624	else {
625	switch (query) {
626	case GL_COEFF:
627	size = gleval_sizes[i] * e->eval1D[i].order;
628	for (j = 0; j < size; j++) {
629	v[j] = e->eval1D[i].coeff[j];
630	}
631	break;
632	case GL_ORDER:
633	*v = (GLdouble) e->eval1D[i].order;
634	break;
635	case GL_DOMAIN:
636	v[0] = e->eval1D[i].u1;
637	v[1] = e->eval1D[i].u2;
638	break;
639	default:
640	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
641	"GetMapdv: invalid target: %d", target);
642	return;
643	}
644	}
645	}
646
647	void STATE_APIENTRY
648	crStateGetMapfv(GLenum target, GLenum query, GLfloat * v)
649	{
650	CRContext *g = GetCurrentContext();
651	CRStateBits *sb = GetCurrentBits();
652	CREvaluatorState *e = &(g->eval);
653	GLint size;
654	GLint i, j;
655	(void) sb;
656
657	if (g->current.inBeginEnd) {
658	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
659	"Map1d called in begin/end");
660	return;
661	}
662
663	FLUSH();
664
665	i = target - GL_MAP1_COLOR_4;
666	if (i < 0 \|\| i >= GLEVAL_TOT) {
667	i = target - GL_MAP2_COLOR_4;
668	if (i < 0 \|\| i >= GLEVAL_TOT) {
669	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
670	"GetMapfv: invalid target: %d", target);
671	return;
672	}
673	switch (query) {
674	case GL_COEFF:
675	size = gleval_sizes[i] * e->eval2D[i].uorder * e->eval2D[i].vorder;
676	for (j = 0; j < size; j++) {
677	v[j] = (GLfloat) e->eval2D[i].coeff[j];
678	}
679	break;
680	case GL_ORDER:
681	v[0] = (GLfloat) e->eval2D[i].uorder;
682	v[1] = (GLfloat) e->eval2D[i].vorder;
683	break;
684	case GL_DOMAIN:
685	v[0] = (GLfloat) e->eval2D[i].u1;
686	v[1] = (GLfloat) e->eval2D[i].u2;
687	v[2] = (GLfloat) e->eval2D[i].v1;
688	v[3] = (GLfloat) e->eval2D[i].v2;
689	break;
690	default:
691	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
692	"GetMapfv: invalid target: %d", target);
693	return;
694	}
695	}
696	else {
697	switch (query) {
698	case GL_COEFF:
699	size = gleval_sizes[i] * e->eval1D[i].order;
700	for (j = 0; j < size; j++) {
701	v[j] = (GLfloat) e->eval1D[i].coeff[j];
702	}
703	break;
704	case GL_ORDER:
705	*v = (GLfloat) e->eval1D[i].order;
706	break;
707	case GL_DOMAIN:
708	v[0] = (GLfloat) e->eval1D[i].u1;
709	v[1] = (GLfloat) e->eval1D[i].u2;
710	break;
711	default:
712	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
713	"GetMapfv: invalid target: %d", target);
714	return;
715	}
716	}
717	}
718
719	void STATE_APIENTRY
720	crStateGetMapiv(GLenum target, GLenum query, GLint * v)
721	{
722	CRContext *g = GetCurrentContext();
723	CRStateBits *sb = GetCurrentBits();
724	CREvaluatorState *e = &(g->eval);
725	GLint size;
726	GLint i, j;
727	(void) sb;
728
729	if (g->current.inBeginEnd) {
730	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
731	"Map1d called in begin/end");
732	return;
733	}
734
735	FLUSH();
736
737	i = target - GL_MAP1_COLOR_4;
738	if (i < 0 \|\| i >= GLEVAL_TOT) {
739	i = target - GL_MAP2_COLOR_4;
740	if (i < 0 \|\| i >= GLEVAL_TOT) {
741	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
742	"GetMapiv: invalid target: %d", target);
743	return;
744	}
745	switch (query) {
746	case GL_COEFF:
747	size = gleval_sizes[i] * e->eval2D[i].uorder * e->eval2D[i].vorder;
748	for (j = 0; j < size; j++) {
749	v[j] = (GLint) e->eval2D[i].coeff[j];
750	}
751	break;
752	case GL_ORDER:
753	v[0] = e->eval2D[i].uorder;
754	v[1] = e->eval2D[i].vorder;
755	break;
756	case GL_DOMAIN:
757	v[0] = (GLint) e->eval2D[i].u1;
758	v[1] = (GLint) e->eval2D[i].u2;
759	v[2] = (GLint) e->eval2D[i].v1;
760	v[3] = (GLint) e->eval2D[i].v2;
761	break;
762	default:
763	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
764	"GetMapiv: invalid target: %d", target);
765	return;
766	}
767	}
768	else {
769	switch (query) {
770	case GL_COEFF:
771	size = gleval_sizes[i] * e->eval1D[i].order;
772	for (j = 0; j < size; j++) {
773	v[j] = (GLint) e->eval1D[i].coeff[j];
774	}
775	break;
776	case GL_ORDER:
777	*v = e->eval1D[i].order;
778	break;
779	case GL_DOMAIN:
780	v[0] = (GLint) e->eval1D[i].u1;
781	v[1] = (GLint) e->eval1D[i].u2;
782	break;
783	default:
784	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
785	"GetMapiv: invalid target: %d", target);
786	return;
787	}
788	}
789	}
790
791	void STATE_APIENTRY
792	crStateMapGrid1f(GLint un, GLfloat u1, GLfloat u2)
793	{
794	CRContext *g = GetCurrentContext();
795	CRStateBits *sb = GetCurrentBits();
796	CREvaluatorState *e = &(g->eval);
797	CREvaluatorBits *eb = &(sb->eval);
798
799	if (g->current.inBeginEnd) {
800	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
801	"Map1d called in begin/end");
802	return;
803	}
804
805	FLUSH();
806
807	if (un < 1) {
808	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMapGrid1f(bad un)");
809	return;
810	}
811
812	e->un1D = un;
813	e->u11D = u1;
814	e->u21D = u2;
815
816	DIRTY(eb->dirty, g->neg_bitid);
817	DIRTY(eb->grid1D, g->neg_bitid);
818	}
819
820	void STATE_APIENTRY
821	crStateMapGrid1d(GLint un, GLdouble u1, GLdouble u2)
822	{
823	crStateMapGrid1f(un, (GLfloat) u1, (GLfloat) u2);
824	}
825
826
827	void STATE_APIENTRY
828	crStateMapGrid2f(GLint un, GLfloat u1, GLfloat u2,
829	GLint vn, GLfloat v1, GLfloat v2)
830	{
831	CRContext *g = GetCurrentContext();
832	CRStateBits *sb = GetCurrentBits();
833	CREvaluatorState *e = &(g->eval);
834	CREvaluatorBits *eb = &(sb->eval);
835
836	if (g->current.inBeginEnd) {
837	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
838	"Map1d called in begin/end");
839	return;
840	}
841
842	FLUSH();
843
844	if (un < 1) {
845	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMapGrid2f(bad un)");
846	return;
847	}
848	if (vn < 1) {
849	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "glMapGrid2f(bad vn)");
850	return;
851	}
852
853	e->un2D = un;
854	e->vn2D = vn;
855	e->u12D = u1;
856	e->u22D = u2;
857	e->v12D = v1;
858	e->v22D = v2;
859
860	DIRTY(eb->dirty, g->neg_bitid);
861	DIRTY(eb->grid2D, g->neg_bitid);
862	}
863
864	void STATE_APIENTRY
865	crStateMapGrid2d(GLint un, GLdouble u1, GLdouble u2,
866	GLint vn, GLdouble v1, GLdouble v2)
867	{
868	crStateMapGrid2f(un, (GLfloat) u1, (GLfloat) u2,
869	vn, (GLfloat) v1, (GLfloat) v2);
870	}
871
872	void
873	crStateEvaluatorSwitch(CREvaluatorBits e, CRbitvalue bitID,
874	CRContext fromCtx, CRContext toCtx)
875	{
876	CREvaluatorState *from = &(fromCtx->eval);
877	CREvaluatorState *to = &(toCtx->eval);
878	int i, j;
879	CRbitvalue nbitID[CR_MAX_BITARRAY];
880
881	for (j = 0; j < CR_MAX_BITARRAY; j++)
882	nbitID[j] = ~bitID[j];
883
884	if (CHECKDIRTY(e->enable, bitID)) {
885	if (from->autoNormal != to->autoNormal) {
886	glAble able[2];
887	able[0] = diff_api.Disable;
888	able[1] = diff_api.Enable;
889	able[to->autoNormal] (GL_AUTO_NORMAL);
890	FILLDIRTY(e->enable);
891	FILLDIRTY(e->dirty);
892	}
893	CLEARDIRTY(e->enable, nbitID);
894	}
895	for (i = 0; i < GLEVAL_TOT; i++) {
896	if (CHECKDIRTY(e->eval1D[i], bitID)) {
897	int size = from->eval1D[i].order * gleval_sizes[i] *
898	sizeof(*from->eval1D[i].coeff);
899	if (from->eval1D[i].order != to->eval1D[i].order \|\|
900	from->eval1D[i].u1 != from->eval1D[i].u1 \|\|
901	from->eval1D[i].u2 != from->eval1D[i].u2 \|\|
902	crMemcmp((const void *) from->eval1D[i].coeff,
903	(const void *) to->eval1D[i].coeff, size)) {
904	diff_api.Map1f(i + GL_MAP1_COLOR_4, to->eval1D[i].u1,
905	to->eval1D[i].u2, gleval_sizes[i], to->eval1D[i].order,
906	to->eval1D[i].coeff);
907	FILLDIRTY(e->dirty);
908	FILLDIRTY(e->eval1D[i]);
909	}
910	CLEARDIRTY(e->eval1D[i], nbitID);
911	}
912	}
913
914	for (i = 0; i < GLEVAL_TOT; i++) {
915	if (CHECKDIRTY(e->eval2D[i], bitID)) {
916	int size = from->eval2D[i].uorder * from->eval2D[i].vorder *
917	gleval_sizes[i] * sizeof(*from->eval2D[i].coeff);
918	if (from->eval2D[i].uorder != to->eval2D[i].uorder \|\|
919	from->eval2D[i].vorder != to->eval2D[i].vorder \|\|
920	from->eval2D[i].u1 != from->eval2D[i].u1 \|\|
921	from->eval2D[i].u2 != from->eval2D[i].u2 \|\|
922	from->eval2D[i].v1 != from->eval2D[i].v1 \|\|
923	from->eval2D[i].v2 != from->eval2D[i].v2 \|\|
924	crMemcmp((const void *) from->eval2D[i].coeff,
925	(const void *) to->eval2D[i].coeff, size)) {
926	diff_api.Map2f(i + GL_MAP2_COLOR_4,
927	to->eval2D[i].u1, to->eval2D[i].u2,
928	gleval_sizes[i], to->eval2D[i].uorder,
929	to->eval2D[i].v1, to->eval2D[i].v2,
930	gleval_sizes[i], to->eval2D[i].vorder,
931	to->eval2D[i].coeff);
932	FILLDIRTY(e->dirty);
933	FILLDIRTY(e->eval2D[i]);
934	}
935	CLEARDIRTY(e->eval2D[i], nbitID);
936	}
937	}
938	if (CHECKDIRTY(e->grid1D, bitID)) {
939	if (from->u11D != to->u11D \|\|
940	from->u21D != to->u21D \|\| from->un1D != to->un1D) {
941	diff_api.MapGrid1d(to->un1D, to->u11D, to->u21D);
942	FILLDIRTY(e->dirty);
943	FILLDIRTY(e->grid1D);
944	}
945	CLEARDIRTY(e->grid1D, nbitID);
946	}
947	if (CHECKDIRTY(e->grid2D, bitID)) {
948	if (from->u12D != to->u12D \|\|
949	from->u22D != to->u22D \|\|
950	from->un2D != to->un2D \|\|
951	from->v12D != to->v12D \|\|
952	from->v22D != to->v22D \|\| from->vn2D != to->vn2D) {
953	diff_api.MapGrid2d(to->un2D, to->u12D, to->u22D,
954	to->vn2D, to->v12D, to->v22D);
955	FILLDIRTY(e->dirty);
956	FILLDIRTY(e->grid1D);
957	}
958	CLEARDIRTY(e->grid1D, nbitID);
959	}
960	CLEARDIRTY(e->dirty, nbitID);
961	}
962
963	void
964	crStateEvaluatorDiff(CREvaluatorBits e, CRbitvalue bitID,
965	CRContext fromCtx, CRContext toCtx)
966	{
967	CREvaluatorState *from = &(fromCtx->eval);
968	CREvaluatorState *to = &(toCtx->eval);
969	glAble able[2];
970	int i, j;
971	CRbitvalue nbitID[CR_MAX_BITARRAY];
972
973	for (j = 0; j < CR_MAX_BITARRAY; j++)
974	nbitID[j] = ~bitID[j];
975
976	able[0] = diff_api.Disable;
977	able[1] = diff_api.Enable;
978
979	if (CHECKDIRTY(e->enable, bitID)) {
980	if (from->autoNormal != to->autoNormal) {
981	able[to->autoNormal] (GL_AUTO_NORMAL);
982	from->autoNormal = to->autoNormal;
983	}
984	CLEARDIRTY(e->enable, nbitID);
985	}
986	for (i = 0; i < GLEVAL_TOT; i++) {
987	if (CHECKDIRTY(e->enable1D[i], bitID)) {
988	if (from->enable1D[i] != to->enable1D[i]) {
989	able[to->enable1D[i]] (i + GL_MAP1_COLOR_4);
990	from->enable1D[i] = to->enable1D[i];
991	}
992	CLEARDIRTY(e->enable1D[i], nbitID);
993	}
994	if (to->enable1D[i] && CHECKDIRTY(e->eval1D[i], bitID)) {
995	int size = from->eval1D[i].order * gleval_sizes[i] *
996	sizeof(*from->eval1D[i].coeff);
997	if (from->eval1D[i].order != to->eval1D[i].order \|\|
998	from->eval1D[i].u1 != from->eval1D[i].u1 \|\|
999	from->eval1D[i].u2 != from->eval1D[i].u2 \|\|
1000	crMemcmp((const void *) from->eval1D[i].coeff,
1001	(const void *) to->eval1D[i].coeff, size)) {
1002	diff_api.Map1f(i + GL_MAP1_COLOR_4, to->eval1D[i].u1,
1003	to->eval1D[i].u2, gleval_sizes[i], to->eval1D[i].order,
1004	to->eval1D[i].coeff);
1005	from->eval1D[i].order = to->eval1D[i].order;
1006	from->eval1D[i].u1 = from->eval1D[i].u1;
1007	from->eval1D[i].u2 = from->eval1D[i].u2;
1008	crMemcpy((void *) from->eval1D[i].coeff,
1009	(const void *) to->eval1D[i].coeff, size);
1010	}
1011	CLEARDIRTY(e->eval1D[i], nbitID);
1012	}
1013	}
1014
1015	for (i = 0; i < GLEVAL_TOT; i++) {
1016	if (CHECKDIRTY(e->enable2D[i], bitID)) {
1017	if (from->enable2D[i] != to->enable2D[i]) {
1018	able[to->enable2D[i]] (i + GL_MAP2_COLOR_4);
1019	from->enable2D[i] = to->enable2D[i];
1020	}
1021	CLEARDIRTY(e->enable2D[i], nbitID);
1022	}
1023	if (to->enable2D[i] && CHECKDIRTY(e->eval2D[i], bitID)) {
1024	int size = from->eval2D[i].uorder * from->eval2D[i].vorder *
1025	gleval_sizes[i] * sizeof(*from->eval2D[i].coeff);
1026	if (from->eval2D[i].uorder != to->eval2D[i].uorder \|\|
1027	from->eval2D[i].vorder != to->eval2D[i].vorder \|\|
1028	from->eval2D[i].u1 != from->eval2D[i].u1 \|\|
1029	from->eval2D[i].u2 != from->eval2D[i].u2 \|\|
1030	from->eval2D[i].v1 != from->eval2D[i].v1 \|\|
1031	from->eval2D[i].v2 != from->eval2D[i].v2 \|\|
1032	crMemcmp((const void *) from->eval2D[i].coeff,
1033	(const void *) to->eval2D[i].coeff, size)) {
1034	diff_api.Map2f(i + GL_MAP2_COLOR_4,
1035	to->eval2D[i].u1, to->eval2D[i].u2,
1036	gleval_sizes[i], to->eval2D[i].uorder,
1037	to->eval2D[i].v1, to->eval2D[i].v2,
1038	gleval_sizes[i], to->eval2D[i].vorder,
1039	to->eval2D[i].coeff);
1040	from->eval2D[i].uorder = to->eval2D[i].uorder;
1041	from->eval2D[i].vorder = to->eval2D[i].vorder;
1042	from->eval2D[i].u1 = from->eval2D[i].u1;
1043	from->eval2D[i].u2 = from->eval2D[i].u2;
1044	from->eval2D[i].v1 = from->eval2D[i].v1;
1045	from->eval2D[i].v2 = from->eval2D[i].v2;
1046	crMemcpy((void *) from->eval2D[i].coeff,
1047	(const void *) to->eval2D[i].coeff, size);
1048	}
1049	CLEARDIRTY(e->eval2D[i], nbitID);
1050	}
1051	}
1052	if (CHECKDIRTY(e->grid1D, bitID)) {
1053	if (from->u11D != to->u11D \|\|
1054	from->u21D != to->u21D \|\| from->un1D != to->un1D) {
1055	diff_api.MapGrid1d(to->un1D, to->u11D, to->u21D);
1056	from->u11D = to->u11D;
1057	from->u21D = to->u21D;
1058	from->un1D = to->un1D;
1059	}
1060	CLEARDIRTY(e->grid1D, nbitID);
1061	}
1062	if (CHECKDIRTY(e->grid2D, bitID)) {
1063	if (from->u12D != to->u12D \|\|
1064	from->u22D != to->u22D \|\|
1065	from->un2D != to->un2D \|\|
1066	from->v12D != to->v12D \|\|
1067	from->v22D != to->v22D \|\| from->vn2D != to->vn2D) {
1068	diff_api.MapGrid2d(to->un2D, to->u12D, to->u22D,
1069	to->vn2D, to->v12D, to->v22D);
1070	from->u12D = to->u12D;
1071	from->u22D = to->u22D;
1072	from->un2D = to->un2D;
1073	from->v12D = to->v12D;
1074	from->v22D = to->v22D;
1075	from->vn2D = to->vn2D;
1076	}
1077	CLEARDIRTY(e->grid1D, nbitID);
1078	}
1079	CLEARDIRTY(e->dirty, nbitID);
1080	}

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source: vbox/trunk/src/VBox/GuestHost/OpenGL/state_tracker/state_evaluators.c@ 52350

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