state_regcombiner.c@ 25149

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crOpenGL: export to OSE
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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	#include "state.h"
8	#include "state/cr_statetypes.h"
9
10
11	#define UNUSED(x) ((void) (x))
12
13
14	void crStateRegCombinerInit( CRContext *ctx )
15	{
16	CRRegCombinerState *reg = &ctx->regcombiner;
17	CRStateBits *sb = GetCurrentBits();
18	CRRegCombinerBits *rb = &(sb->regcombiner);
19	#ifndef CR_NV_register_combiners
20	UNUSED(reg)
21	#else
22	GLcolorf zero_color = {0.0f, 0.0f, 0.0f, 0.0f};
23	int i;
24
25	reg->enabledRegCombiners = GL_FALSE;
26	RESET(rb->enable, ctx->bitid);
27	reg->constantColor0 = zero_color;
28	RESET(rb->regCombinerColor0, ctx->bitid);
29	reg->constantColor1 = zero_color;
30	RESET(rb->regCombinerColor1, ctx->bitid);
31	for( i=0; i<CR_MAX_GENERAL_COMBINERS; i++ )
32	{
33	/* RGB Portion */
34	reg->rgb[i].a = GL_PRIMARY_COLOR_NV;
35	reg->rgb[i].b = GL_ZERO;
36	reg->rgb[i].c = GL_ZERO;
37	reg->rgb[i].d = GL_ZERO;
38	reg->rgb[i].aMapping = GL_UNSIGNED_IDENTITY_NV;
39	reg->rgb[i].bMapping = GL_UNSIGNED_INVERT_NV;
40	reg->rgb[i].cMapping = GL_UNSIGNED_IDENTITY_NV;
41	reg->rgb[i].dMapping = GL_UNSIGNED_IDENTITY_NV;
42	reg->rgb[i].aPortion = GL_RGB;
43	reg->rgb[i].bPortion = GL_RGB;
44	reg->rgb[i].cPortion = GL_RGB;
45	reg->rgb[i].dPortion = GL_RGB;
46	reg->rgb[i].scale = GL_NONE;
47	reg->rgb[i].bias = GL_NONE;
48	reg->rgb[i].abOutput = GL_DISCARD_NV;
49	reg->rgb[i].cdOutput = GL_DISCARD_NV;
50	reg->rgb[i].sumOutput = GL_SPARE0_NV;
51	reg->rgb[i].abDotProduct = GL_FALSE;
52	reg->rgb[i].cdDotProduct = GL_FALSE;
53	reg->rgb[i].muxSum = GL_FALSE;
54
55	/* Alpha Portion */
56	reg->alpha[i].a = GL_PRIMARY_COLOR_NV;
57	reg->alpha[i].b = GL_ZERO;
58	reg->alpha[i].c = GL_ZERO;
59	reg->alpha[i].d = GL_ZERO;
60	reg->alpha[i].aMapping = GL_UNSIGNED_IDENTITY_NV;
61	reg->alpha[i].bMapping = GL_UNSIGNED_INVERT_NV;
62	reg->alpha[i].cMapping = GL_UNSIGNED_IDENTITY_NV;
63	reg->alpha[i].dMapping = GL_UNSIGNED_IDENTITY_NV;
64	reg->alpha[i].aPortion = GL_ALPHA;
65	reg->alpha[i].bPortion = GL_ALPHA;
66	reg->alpha[i].cPortion = GL_ALPHA;
67	reg->alpha[i].dPortion = GL_ALPHA;
68	reg->alpha[i].scale = GL_NONE;
69	reg->alpha[i].bias = GL_NONE;
70	reg->alpha[i].abOutput = GL_DISCARD_NV;
71	reg->alpha[i].cdOutput = GL_DISCARD_NV;
72	reg->alpha[i].sumOutput = GL_SPARE0_NV;
73	reg->alpha[i].abDotProduct = GL_FALSE;
74	reg->alpha[i].cdDotProduct = GL_FALSE;
75	reg->alpha[i].muxSum = GL_FALSE;
76	RESET(rb->regCombinerInput[i], ctx->bitid);
77	RESET(rb->regCombinerOutput[i], ctx->bitid);
78	}
79	RESET(rb->regCombinerVars, ctx->bitid);
80	reg->numGeneralCombiners = 1;
81	reg->colorSumClamp = GL_TRUE;
82	reg->a = GL_FOG;
83	reg->b = GL_SPARE0_PLUS_SECONDARY_COLOR_NV;
84	reg->c = GL_FOG;
85	reg->d = GL_ZERO;
86	reg->e = GL_ZERO;
87	reg->f = GL_ZERO;
88	reg->g = GL_SPARE0_NV;
89	reg->aMapping = GL_UNSIGNED_IDENTITY_NV;
90	reg->bMapping = GL_UNSIGNED_IDENTITY_NV;
91	reg->cMapping = GL_UNSIGNED_IDENTITY_NV;
92	reg->dMapping = GL_UNSIGNED_IDENTITY_NV;
93	reg->eMapping = GL_UNSIGNED_IDENTITY_NV;
94	reg->fMapping = GL_UNSIGNED_IDENTITY_NV;
95	reg->gMapping = GL_UNSIGNED_IDENTITY_NV;
96	reg->aPortion = GL_ALPHA;
97	reg->bPortion = GL_RGB;
98	reg->cPortion = GL_RGB;
99	reg->dPortion = GL_RGB;
100	reg->ePortion = GL_RGB;
101	reg->fPortion = GL_RGB;
102	reg->gPortion = GL_ALPHA;
103	RESET(rb->regCombinerFinalInput, ctx->bitid);
104	#ifdef CR_NV_register_combiners2
105	reg->enabledPerStageConstants = GL_FALSE;
106	for( i=0; i<CR_MAX_GENERAL_COMBINERS; i++ )
107	{
108	reg->stageConstantColor0[i] = zero_color;
109	reg->stageConstantColor1[i] = zero_color;
110	RESET(rb->regCombinerStageColor0[i], ctx->bitid);
111	RESET(rb->regCombinerStageColor1[i], ctx->bitid);
112	}
113	#endif /* CR_NV_register_combiners2 */
114	#endif /* CR_NV_register_combiners */
115
116	RESET(rb->dirty, ctx->bitid);
117	}
118
119	void STATE_APIENTRY crStateCombinerParameterfvNV( GLenum pname, const GLfloat *params )
120	{
121	CRContext *g = GetCurrentContext();
122	CRRegCombinerState *r = &(g->regcombiner);
123	CRStateBits *sb = GetCurrentBits();
124	CRRegCombinerBits *rb = &(sb->regcombiner);
125
126	switch( pname )
127	{
128	case GL_CONSTANT_COLOR0_NV:
129	r->constantColor0.r = params[0];
130	r->constantColor0.g = params[1];
131	r->constantColor0.b = params[2];
132	r->constantColor0.a = params[3];
133	DIRTY(rb->regCombinerColor0, g->neg_bitid);
134	break;
135	case GL_CONSTANT_COLOR1_NV:
136	r->constantColor1.r = params[0];
137	r->constantColor1.g = params[1];
138	r->constantColor1.b = params[2];
139	r->constantColor1.a = params[3];
140	DIRTY(rb->regCombinerColor1, g->neg_bitid);
141	break;
142	case GL_NUM_GENERAL_COMBINERS_NV:
143	if( params < 1 \|\| params > g->limits.maxGeneralCombiners )
144	{
145	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "CombinerParameter passed invalid NUM_GENERAL_COMBINERS param: %d", (GLint)*params );
146	return;
147	}
148	r->numGeneralCombiners = (GLint)*params;
149	DIRTY(rb->regCombinerVars, g->neg_bitid);
150	break;
151	case GL_COLOR_SUM_CLAMP_NV:
152	r->colorSumClamp = (GLboolean)*params;
153	DIRTY(rb->regCombinerVars, g->neg_bitid);
154	break;
155	default:
156	crStateError( __LINE__, __FILE__, GL_INVALID_ENUM, "CombinerParameter passed bogus pname: 0x%x", pname );
157	return;
158	}
159
160	DIRTY(rb->dirty, g->neg_bitid);
161	}
162
163	void STATE_APIENTRY crStateCombinerParameterivNV( GLenum pname, const GLint *params )
164	{
165	GLfloat fparams[4];
166	int i;
167
168	if( pname == GL_CONSTANT_COLOR0_NV \|\| pname == GL_CONSTANT_COLOR1_NV )
169	{
170	for( i=0; i<4; i++ )
171	{
172	fparams[i] = (GLfloat)params[i] * (GLfloat)(1.0/255.0);
173	}
174	}
175	else
176	{
177	/* Only one paramater: */
178	fparams = (GLfloat) params;
179	}
180	crStateCombinerParameterfvNV( pname, fparams );
181	}
182
183	void STATE_APIENTRY crStateCombinerParameterfNV( GLenum pname, GLfloat param )
184	{
185	GLfloat fparam[1];
186	*fparam = (GLfloat) param;
187	if( pname == GL_CONSTANT_COLOR0_NV \|\| pname == GL_CONSTANT_COLOR1_NV )
188	{
189	crStateError( __LINE__, __FILE__, GL_INVALID_ENUM, "Invalid pname (CONSTANT_COLOR%d) passed to CombinerParameterfNV: 0x%x", (GLint)param-GL_CONSTANT_COLOR0_NV, pname );
190	return;
191	}
192	crStateCombinerParameterfvNV( pname, fparam );
193	}
194
195	void STATE_APIENTRY crStateCombinerParameteriNV( GLenum pname, GLint param )
196	{
197	GLfloat fparam[1];
198	*fparam = (GLfloat) param;
199	if( pname == GL_CONSTANT_COLOR0_NV \|\| pname == GL_CONSTANT_COLOR1_NV )
200	{
201	crStateError( __LINE__, __FILE__, GL_INVALID_ENUM, "Invalid pname (CONSTANT_COLOR%d) passed to CombinerParameteriNV: 0x%x", param-GL_CONSTANT_COLOR0_NV, pname );
202	return;
203	}
204	crStateCombinerParameterfvNV( pname, fparam );
205	}
206
207	void STATE_APIENTRY crStateCombinerInputNV( GLenum stage, GLenum portion, GLenum variable, GLenum input, GLenum mapping, GLenum componentUsage )
208	{
209	CRContext *g = GetCurrentContext();
210	CRRegCombinerState *r = &(g->regcombiner);
211	CRStateBits *sb = GetCurrentBits();
212	CRRegCombinerBits *rb = &(sb->regcombiner);
213
214	if( stage < GL_COMBINER0_NV \|\| stage >= GL_COMBINER0_NV + g->limits.maxGeneralCombiners )
215	{
216	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerInputNV passed bogus stage: 0x%x", stage );
217	return;
218	}
219	if( input != GL_ZERO && input != GL_CONSTANT_COLOR0_NV && input != GL_CONSTANT_COLOR1_NV && input != GL_FOG && input != GL_PRIMARY_COLOR_NV && input != GL_SECONDARY_COLOR_NV && input != GL_SPARE0_NV && input != GL_SPARE1_NV && ( input < GL_TEXTURE0_ARB \|\| input >= GL_TEXTURE0_ARB + g->limits.maxTextureUnits ))
220	{
221	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerInputNV passed bogus input: 0x%x", input );
222	return;
223	}
224	if( mapping != GL_UNSIGNED_IDENTITY_NV && mapping != GL_UNSIGNED_INVERT_NV && mapping != GL_EXPAND_NORMAL_NV && mapping != GL_EXPAND_NEGATE_NV && mapping != GL_HALF_BIAS_NORMAL_NV && mapping != GL_HALF_BIAS_NEGATE_NV && mapping != GL_SIGNED_IDENTITY_NV && mapping != GL_SIGNED_NEGATE_NV )
225	{
226	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerInputNV passed bogus mapping: 0x%x", mapping );
227	return;
228	}
229	if( componentUsage != GL_RGB && componentUsage != GL_ALPHA && componentUsage != GL_BLUE )
230	{
231	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerInputNV passed bogus componentUsage: 0x%x", componentUsage );
232	return;
233	}
234
235	if(( componentUsage == GL_RGB && portion == GL_ALPHA )\|\|( componentUsage == GL_BLUE && portion == GL_RGB ))
236	{
237	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "Incompatible portion and componentUsage passed to CombinerInputNV: portion = 0x%x, componentUsage = 0x%x", portion, componentUsage );
238	return;
239	}
240	if( componentUsage == GL_ALPHA && input == GL_FOG )
241	{
242	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "CombinerInputNV can not have input of GL_FOG if componentUsage is GL_ALPHA" );
243	return;
244	}
245
246	stage -= GL_COMBINER0_NV;
247	if( portion == GL_RGB )
248	{
249	switch( variable )
250	{
251	case GL_VARIABLE_A_NV:
252	r->rgb[stage].a = input;
253	r->rgb[stage].aMapping = mapping;
254	r->rgb[stage].aPortion = componentUsage;
255	break;
256	case GL_VARIABLE_B_NV:
257	r->rgb[stage].b = input;
258	r->rgb[stage].bMapping = mapping;
259	r->rgb[stage].bPortion = componentUsage;
260	break;
261	case GL_VARIABLE_C_NV:
262	r->rgb[stage].c = input;
263	r->rgb[stage].cMapping = mapping;
264	r->rgb[stage].cPortion = componentUsage;
265	break;
266	case GL_VARIABLE_D_NV:
267	r->rgb[stage].d = input;
268	r->rgb[stage].dMapping = mapping;
269	r->rgb[stage].dPortion = componentUsage;
270	break;
271	default:
272	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerInputNV passed bogus variable: 0x%x", variable );
273	return;
274	}
275	}
276	else if( portion == GL_ALPHA )
277	{
278	switch( variable )
279	{
280	case GL_VARIABLE_A_NV:
281	r->alpha[stage].a = input;
282	r->alpha[stage].aMapping = mapping;
283	r->alpha[stage].aPortion = componentUsage;
284	break;
285	case GL_VARIABLE_B_NV:
286	r->alpha[stage].b = input;
287	r->alpha[stage].bMapping = mapping;
288	r->alpha[stage].bPortion = componentUsage;
289	break;
290	case GL_VARIABLE_C_NV:
291	r->alpha[stage].c = input;
292	r->alpha[stage].cMapping = mapping;
293	r->alpha[stage].cPortion = componentUsage;
294	break;
295	case GL_VARIABLE_D_NV:
296	r->alpha[stage].d = input;
297	r->alpha[stage].dMapping = mapping;
298	r->alpha[stage].dPortion = componentUsage;
299	break;
300	default:
301	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerInputNV passed bogus variable: 0x%x", variable );
302	return;
303	}
304	}
305	else
306	{
307	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerInputNV passed bogus portion: 0x%x", portion );
308	return;
309	}
310
311	DIRTY(rb->regCombinerInput[stage], g->neg_bitid);
312	DIRTY(rb->dirty, g->neg_bitid);
313	}
314
315	void STATE_APIENTRY crStateCombinerOutputNV( GLenum stage, GLenum portion, GLenum abOutput, GLenum cdOutput, GLenum sumOutput, GLenum scale, GLenum bias, GLboolean abDotProduct, GLboolean cdDotProduct, GLboolean muxSum )
316	{
317	CRContext *g = GetCurrentContext();
318	CRRegCombinerState *r = &(g->regcombiner);
319	CRStateBits *sb = GetCurrentBits();
320	CRRegCombinerBits *rb = &(sb->regcombiner);
321
322	/*
323	crDebug("%s(stage=0x%x portion=0x%x abOutput=0x%x cdOutput=0x%x "
324	"sumOutput=0x%x scale=0x%x bias=0x%x abDotProduct=0x%x "
325	"cdDotProduct=%d muxSum=%d)\n",
326	__FUNCTION__,
327	stage, portion, abOutput, cdOutput, sumOutput, scale, bias,
328	abDotProduct, cdDotProduct, muxSum);
329	*/
330	if( stage < GL_COMBINER0_NV \|\| stage >= GL_COMBINER0_NV + g->limits.maxGeneralCombiners )
331	{
332	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerOutputNV passed bogus stage: 0x%x", stage );
333	return;
334	}
335	if( abOutput != GL_DISCARD_NV && abOutput != GL_PRIMARY_COLOR_NV && abOutput != GL_SECONDARY_COLOR_NV && abOutput != GL_SPARE0_NV && abOutput != GL_SPARE1_NV && ( abOutput < GL_TEXTURE0_ARB \|\| abOutput >= g->limits.maxTextureUnits + GL_TEXTURE0_ARB ))
336	{
337	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerOutputNV passed bogus abOutput: 0x%x", abOutput );
338	return;
339	}
340	if( cdOutput != GL_DISCARD_NV && cdOutput != GL_PRIMARY_COLOR_NV && cdOutput != GL_SECONDARY_COLOR_NV && cdOutput != GL_SPARE0_NV && cdOutput != GL_SPARE1_NV && ( cdOutput < GL_TEXTURE0_ARB \|\| cdOutput >= g->limits.maxTextureUnits + GL_TEXTURE0_ARB ))
341	{
342	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerOutputNV passed bogus cdOutput: 0x%x", cdOutput );
343	return;
344	}
345	if( sumOutput != GL_DISCARD_NV && sumOutput != GL_PRIMARY_COLOR_NV && sumOutput != GL_SECONDARY_COLOR_NV && sumOutput != GL_SPARE0_NV && sumOutput != GL_SPARE1_NV && sumOutput != GL_TEXTURE0_ARB && sumOutput != GL_TEXTURE1_ARB )
346	{
347	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerOutputNV passed bogus sumOutput: 0x%x", sumOutput );
348	return;
349	}
350	if( scale != GL_NONE && scale != GL_SCALE_BY_TWO_NV && scale != GL_SCALE_BY_FOUR_NV && scale != GL_SCALE_BY_ONE_HALF_NV )
351	{
352	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "CombinerOutputNV passed bogus scale: 0x%x", scale );
353	return;
354	}
355	if( bias != GL_NONE && bias != GL_BIAS_BY_NEGATIVE_ONE_HALF_NV )
356	{
357	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "CombinerOutputNV passed bogus bias: 0x%x", bias );
358	return;
359	}
360
361	if( bias == GL_BIAS_BY_NEGATIVE_ONE_HALF_NV && ( scale == GL_SCALE_BY_ONE_HALF_NV \|\| scale == GL_SCALE_BY_FOUR_NV ))
362	{
363	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "CombinerOutputNV can't accept bias of -1/2 if scale is by 1/2 or 4" );
364	return;
365	}
366	if(( abOutput == cdOutput && abOutput != GL_DISCARD_NV )\|\|( abOutput == sumOutput && abOutput != GL_DISCARD_NV )\|\|( cdOutput == sumOutput && cdOutput != GL_DISCARD_NV ))
367	{
368	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "CombinerOutputNV register output names must be unique unless discarded: abOutput = 0x%x, cdOutput = 0x%x, sumOutput = 0x%x", abOutput, cdOutput, sumOutput );
369	return;
370	}
371	if( abDotProduct \|\| cdDotProduct )
372	{
373	if( portion == GL_ALPHA )
374	{
375	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE, "CombinerOutputNV can not do Dot Products when portion = GL_ALPHA" );
376	return;
377	}
378	if( sumOutput != GL_DISCARD_NV )
379	{
380	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "CombinerOutputNV can not do Dot Products when sumOutput is not discarded" );
381	return;
382	}
383	}
384
385	stage -= GL_COMBINER0_NV;
386	if( portion == GL_RGB )
387	{
388	r->rgb[stage].abOutput = abOutput;
389	r->rgb[stage].cdOutput = cdOutput;
390	r->rgb[stage].sumOutput = sumOutput;
391	r->rgb[stage].scale = scale;
392	r->rgb[stage].bias = bias;
393	r->rgb[stage].abDotProduct = abDotProduct;
394	r->rgb[stage].cdDotProduct = cdDotProduct;
395	r->rgb[stage].muxSum = muxSum;
396	}
397	else if( portion == GL_ALPHA )
398	{
399	r->alpha[stage].abOutput = abOutput;
400	r->alpha[stage].cdOutput = cdOutput;
401	r->alpha[stage].sumOutput = sumOutput;
402	r->alpha[stage].scale = scale;
403	r->alpha[stage].bias = bias;
404	r->alpha[stage].abDotProduct = abDotProduct;
405	r->alpha[stage].cdDotProduct = cdDotProduct;
406	r->alpha[stage].muxSum = muxSum;
407	}
408	else
409	{
410	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerOutputNV passed bogus portion: 0x%x", portion );
411	return;
412	}
413
414	DIRTY(rb->regCombinerOutput[stage], g->neg_bitid);
415	DIRTY(rb->dirty, g->neg_bitid);
416	}
417
418	void STATE_APIENTRY crStateFinalCombinerInputNV( GLenum variable, GLenum input, GLenum mapping, GLenum componentUsage )
419	{
420	CRContext *g = GetCurrentContext();
421	CRRegCombinerState *r = &(g->regcombiner);
422	CRStateBits *sb = GetCurrentBits();
423	CRRegCombinerBits *rb = &(sb->regcombiner);
424
425	if( input != GL_ZERO && input != GL_CONSTANT_COLOR0_NV && input != GL_CONSTANT_COLOR1_NV && input != GL_FOG && input != GL_PRIMARY_COLOR_NV && input != GL_SECONDARY_COLOR_NV && input != GL_SPARE0_NV && input != GL_SPARE1_NV && ( input < GL_TEXTURE0_ARB \|\| input >= GL_TEXTURE0_ARB + g->limits.maxTextureUnits ) && input != GL_E_TIMES_F_NV && input != GL_SPARE0_PLUS_SECONDARY_COLOR_NV )
426	{
427	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "FinalCombinerInputNV passed bogus input: 0x%x", input );
428	return;
429	}
430	if( mapping != GL_UNSIGNED_IDENTITY_NV && mapping != GL_UNSIGNED_INVERT_NV && mapping != GL_EXPAND_NORMAL_NV && mapping != GL_EXPAND_NEGATE_NV && mapping != GL_HALF_BIAS_NORMAL_NV && mapping != GL_HALF_BIAS_NEGATE_NV && mapping != GL_SIGNED_IDENTITY_NV && mapping != GL_SIGNED_NEGATE_NV )
431	{
432	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "FinalCombinerInputNV passed bogus mapping: 0x%x", mapping );
433	return;
434	}
435	if( componentUsage != GL_RGB && componentUsage != GL_ALPHA && componentUsage != GL_BLUE )
436	{
437	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "FinalCombinerInputNV passed bogus componentUsage: 0x%x", componentUsage );
438	return;
439	}
440
441	if( componentUsage == GL_ALPHA && ( input == GL_E_TIMES_F_NV \|\| input == GL_SPARE0_PLUS_SECONDARY_COLOR_NV ))
442	{
443	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION, "FinalCombinerInputNV does not allow componentUsage of ALPHA when input is E_TIMES_F or SPARE0_PLUS_SECONDARY_COLOR" );
444	return;
445	}
446
447	switch( variable )
448	{
449	case GL_VARIABLE_A_NV:
450	r->a = input;
451	r->aMapping = mapping;
452	r->aPortion = componentUsage;
453	break;
454	case GL_VARIABLE_B_NV:
455	r->b = input;
456	r->bMapping = mapping;
457	r->bPortion = componentUsage;
458	break;
459	case GL_VARIABLE_C_NV:
460	r->c = input;
461	r->cMapping = mapping;
462	r->cPortion = componentUsage;
463	break;
464	case GL_VARIABLE_D_NV:
465	r->d = input;
466	r->dMapping = mapping;
467	r->dPortion = componentUsage;
468	break;
469	case GL_VARIABLE_E_NV:
470	r->e = input;
471	r->eMapping = mapping;
472	r->ePortion = componentUsage;
473	break;
474	case GL_VARIABLE_F_NV:
475	r->f = input;
476	r->fMapping = mapping;
477	r->fPortion = componentUsage;
478	break;
479	case GL_VARIABLE_G_NV:
480	if( componentUsage != GL_ALPHA )
481	{
482	crStateError( __LINE__, __FILE__, GL_INVALID_OPERATION, "FinalCombinerInputNV can not have variable G when componentUsage is RGB or BLUE" );
483	return;
484	}
485	r->g = input;
486	r->gMapping = mapping;
487	r->gPortion = componentUsage;
488	break;
489	default:
490	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerOutputNV passed bogus variable: 0x%x", variable );
491	return;
492	}
493
494	DIRTY(rb->regCombinerFinalInput, g->neg_bitid);
495	DIRTY(rb->dirty, g->neg_bitid);
496	}
497
498
499	/* XXX Unfinished RegCombiner State functions */
500	void STATE_APIENTRY crStateGetCombinerOutputParameterfvNV( GLenum stage, GLenum portion, GLenum pname, GLfloat *params )
501	{
502	(void) stage;
503	(void) portion;
504	(void) pname;
505	(void) params;
506	}
507
508	void STATE_APIENTRY crStateGetCombinerOutputParameterivNV( GLenum stage, GLenum portion, GLenum pname, GLint *params )
509	{
510	(void) stage;
511	(void) portion;
512	(void) pname;
513	(void) params;
514	}
515
516	void STATE_APIENTRY crStateGetFinalCombinerInputParameterfvNV( GLenum variable, GLenum pname, GLfloat *params )
517	{
518	(void) variable;
519	(void) pname;
520	(void) params;
521	}
522
523	void STATE_APIENTRY crStateGetFinalCombinerInputParameterivNV( GLenum variable, GLenum pname, GLint *params )
524	{
525	(void) variable;
526	(void) pname;
527	(void) params;
528	}
529
530
531	void STATE_APIENTRY crStateGetCombinerInputParameterivNV( GLenum stage, GLenum portion, GLenum variable, GLenum pname, GLint *params )
532	{
533	CRContext *g = GetCurrentContext();
534	CRRegCombinerState *r = &(g->regcombiner);
535	int i = stage - GL_COMBINER0_NV;
536	GLenum input = 0, mapping = 0, usage = 0;
537
538	if (g->current.inBeginEnd)
539	{
540	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
541	"glGetCombinerParameterivNV called in begin/end");
542	return;
543	}
544
545	if (i < 0 \|\| i > CR_MAX_GENERAL_COMBINERS) {
546	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
547	"GetCombinerInputParameterivNV(stage=0x%x)", stage);
548	return;
549	}
550
551	if (portion == GL_RGB) {
552	switch (variable) {
553	case GL_VARIABLE_A_NV:
554	input = r->rgb[i].a;
555	mapping = r->rgb[i].aMapping;
556	usage = r->rgb[i].aPortion;
557	break;
558	case GL_VARIABLE_B_NV:
559	input = r->rgb[i].b;
560	mapping = r->rgb[i].bMapping;
561	usage = r->rgb[i].bPortion;
562	break;
563	case GL_VARIABLE_C_NV:
564	input = r->rgb[i].c;
565	mapping = r->rgb[i].cMapping;
566	usage = r->rgb[i].cPortion;
567	break;
568	case GL_VARIABLE_D_NV:
569	input = r->rgb[i].d;
570	mapping = r->rgb[i].dMapping;
571	usage = r->rgb[i].dPortion;
572	break;
573	default:
574	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
575	"glGetCombinerInputParameterivNV(variable=0x%x)", variable);
576	return;
577	}
578	}
579	else if (portion == GL_ALPHA) {
580	switch (variable) {
581	case GL_VARIABLE_A_NV:
582	input = r->alpha[i].a;
583	mapping = r->alpha[i].aMapping;
584	usage = r->alpha[i].aPortion;
585	break;
586	case GL_VARIABLE_B_NV:
587	input = r->alpha[i].b;
588	mapping = r->alpha[i].bMapping;
589	usage = r->alpha[i].bPortion;
590	break;
591	case GL_VARIABLE_C_NV:
592	input = r->alpha[i].c;
593	mapping = r->alpha[i].cMapping;
594	usage = r->alpha[i].cPortion;
595	break;
596	case GL_VARIABLE_D_NV:
597	input = r->alpha[i].d;
598	mapping = r->alpha[i].dMapping;
599	usage = r->alpha[i].dPortion;
600	break;
601	default:
602	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
603	"glGetCombinerInputParameterivNV(variable=0x%x)", variable);
604	return;
605	}
606	}
607	else {
608	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
609	"glGetCombinerInputParameterivNV(portion=0x%x)", portion);
610	}
611	switch (pname) {
612	case GL_COMBINER_INPUT_NV:
613	*params = input;
614	return;
615	case GL_COMBINER_MAPPING_NV:
616	*params = mapping;
617	return;
618	case GL_COMBINER_COMPONENT_USAGE_NV:
619	*params = usage;
620	return;
621	default:
622	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
623	"glGetCombinerInputParameterivNV(pname=0x%x)", pname);
624	return;
625	}
626	}
627
628
629	void STATE_APIENTRY crStateGetCombinerInputParameterfvNV( GLenum stage, GLenum portion, GLenum variable, GLenum pname, GLfloat *params )
630	{
631	GLint iparams;
632	crStateGetCombinerInputParameterivNV(stage, portion, variable, pname, &iparams);
633	*params = (GLfloat) iparams;
634	}
635
636
637	void STATE_APIENTRY crStateCombinerStageParameterfvNV( GLenum stage, GLenum pname, const GLfloat *params )
638	{
639	CRContext *g = GetCurrentContext();
640	CRRegCombinerState *r = &(g->regcombiner);
641	CRStateBits *sb = GetCurrentBits();
642	CRRegCombinerBits *rb = &(sb->regcombiner);
643
644	stage -= GL_COMBINER0_NV;
645	if( stage >= g->limits.maxGeneralCombiners )
646	{
647	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "CombinerStageParameterfvNV passed bogus stage: 0x%x", stage+GL_COMBINER0_NV );
648	return;
649	}
650
651	switch( pname )
652	{
653	case GL_CONSTANT_COLOR0_NV:
654	r->stageConstantColor0[stage].r = params[0];
655	r->stageConstantColor0[stage].g = params[1];
656	r->stageConstantColor0[stage].b = params[2];
657	r->stageConstantColor0[stage].a = params[3];
658	DIRTY(rb->regCombinerStageColor0[stage], g->neg_bitid);
659	break;
660	case GL_CONSTANT_COLOR1_NV:
661	r->stageConstantColor1[stage].r = params[0];
662	r->stageConstantColor1[stage].g = params[1];
663	r->stageConstantColor1[stage].b = params[2];
664	r->stageConstantColor1[stage].a = params[3];
665	DIRTY(rb->regCombinerStageColor1[stage], g->neg_bitid);
666	break;
667	default:
668	crStateError( __LINE__, __FILE__, GL_INVALID_ENUM, "CombinerStageParameter passed bogus pname: 0x%x", pname );
669	return;
670	}
671
672	DIRTY(rb->dirty, g->neg_bitid);
673	}
674
675	void STATE_APIENTRY crStateGetCombinerStageParameterfvNV( GLenum stage, GLenum pname, GLfloat *params )
676	{
677	CRContext *g = GetCurrentContext();
678	CRRegCombinerState *r = &(g->regcombiner);
679
680	stage -= GL_COMBINER0_NV;
681	if( stage >= g->limits.maxGeneralCombiners )
682	{
683	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM, "GetCombinerStageParameterfvNV passed bogus stage: 0x%x", stage+GL_COMBINER0_NV );
684	return;
685	}
686	switch( pname )
687	{
688	case GL_CONSTANT_COLOR0_NV:
689	params[0] = r->stageConstantColor0[stage].r;
690	params[1] = r->stageConstantColor0[stage].g;
691	params[2] = r->stageConstantColor0[stage].b;
692	params[3] = r->stageConstantColor0[stage].a;
693	break;
694	case GL_CONSTANT_COLOR1_NV:
695	params[0] = r->stageConstantColor1[stage].r;
696	params[1] = r->stageConstantColor1[stage].g;
697	params[2] = r->stageConstantColor1[stage].b;
698	params[3] = r->stageConstantColor1[stage].a;
699	break;
700	default:
701	crStateError( __LINE__, __FILE__, GL_INVALID_ENUM, "GetCombinerStageParameter passed bogus pname: 0x%x", pname );
702	return;
703	}
704	return;
705	}

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source: vbox/trunk/src/VBox/GuestHost/OpenGL/state_tracker/state_regcombiner.c@ 25149

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