WebSVN - shark - Blame - Rev 1618 - /shark/branches/xen/ports/mesa/src/tnl/t_imm

Rev	Author	Line No.	Line
56	pj	1	/* $Id: t_imm_eval.c,v 1.1 2003-02-28 11:48:07 pj Exp $ */
		2
		3	/*
		4	* Mesa 3-D graphics library
		5	* Version: 4.1
		6	*
		7	* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
		8	*
		9	* Permission is hereby granted, free of charge, to any person obtaining a
		10	* copy of this software and associated documentation files (the "Software"),
		11	* to deal in the Software without restriction, including without limitation
		12	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
		13	* and/or sell copies of the Software, and to permit persons to whom the
		14	* Software is furnished to do so, subject to the following conditions:
		15	*
		16	* The above copyright notice and this permission notice shall be included
		17	* in all copies or substantial portions of the Software.
		18	*
		19	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
		20	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
		21	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
		22	* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
		23	* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
		24	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
		25	*
		26	* Authors:
		27	* Keith Whitwell <keith@tungstengraphics.com>
		28	* Brian Paul - vertex program updates
		29	*/
		30
		31
		32	#include "glheader.h"
		33	#include "colormac.h"
		34	#include "context.h"
		35	#include "macros.h"
		36	#include "imports.h"
		37	#include "mmath.h"
		38	#include "mtypes.h"
		39	#include "math/m_eval.h"
		40
		41	#include "t_context.h"
		42	#include "t_imm_debug.h"
		43	#include "t_imm_eval.h"
		44	#include "t_imm_exec.h"
		45	#include "t_imm_fixup.h"
		46	#include "t_imm_alloc.h"
		47
		48
		49	static void eval_points1( GLfloat outcoord[][4],
		50	GLfloat coord[][4],
		51	const GLuint *flags,
		52	GLfloat du, GLfloat u1 )
		53	{
		54	GLuint i;
		55	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		56	if (flags[i] & VERT_BITS_EVAL_ANY) {
		57	outcoord[i][0] = coord[i][0];
		58	outcoord[i][1] = coord[i][1];
		59	if (flags[i] & VERT_BIT_EVAL_P1)
		60	outcoord[i][0] = coord[i][0] * du + u1;
		61	}
		62	}
		63
		64	static void eval_points2( GLfloat outcoord[][4],
		65	GLfloat coord[][4],
		66	const GLuint *flags,
		67	GLfloat du, GLfloat u1,
		68	GLfloat dv, GLfloat v1 )
		69	{
		70	GLuint i;
		71	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++) {
		72	if (flags[i] & VERT_BITS_EVAL_ANY) {
		73	outcoord[i][0] = coord[i][0];
		74	outcoord[i][1] = coord[i][1];
		75	if (flags[i] & VERT_BIT_EVAL_P2) {
		76	outcoord[i][0] = coord[i][0] * du + u1;
		77	outcoord[i][1] = coord[i][1] * dv + v1;
		78	}
		79	}
		80	}
		81	}
		82
		83	static const GLubyte dirty_flags[5] = {
		84	0, /* not possible */
		85	VEC_DIRTY_0,
		86	VEC_DIRTY_1,
		87	VEC_DIRTY_2,
		88	VEC_DIRTY_3
		89	};
		90
		91
		92	static void eval1_4f( GLvector4f *dest,
		93	GLfloat coord[][4],
		94	const GLuint *flags,
		95	GLuint dimension,
		96	const struct gl_1d_map *map )
		97	{
		98	const GLfloat u1 = map->u1;
		99	const GLfloat du = map->du;
		100	GLfloat (*to)[4] = dest->data;
		101	GLuint i;
		102
		103	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		104	if (flags[i] & (VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1)) {
		105	GLfloat u = (coord[i][0] - u1) * du;
		106	ASSIGN_4V(to[i], 0,0,0,1);
		107	_math_horner_bezier_curve(map->Points, to[i], u,
		108	dimension, map->Order);
		109	}
		110
		111	dest->size = MAX2(dest->size, dimension);
		112	dest->flags \|= dirty_flags[dimension];
		113	}
		114
		115
		116	/* as above, but dest is a gl_client_array */
		117	static void eval1_4f_ca( struct gl_client_array *dest,
		118	GLfloat coord[][4],
		119	const GLuint *flags,
		120	GLuint dimension,
		121	const struct gl_1d_map *map )
		122	{
		123	const GLfloat u1 = map->u1;
		124	const GLfloat du = map->du;
		125	GLfloat (to)[4] = (GLfloat ()[4])dest->Ptr;
		126	GLuint i;
		127
		128	ASSERT(dest->Type == GL_FLOAT);
		129	ASSERT(dest->StrideB == 4 * sizeof(GLfloat));
		130
		131	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		132	if (flags[i] & (VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1)) {
		133	GLfloat u = (coord[i][0] - u1) * du;
		134	ASSIGN_4V(to[i], 0,0,0,1);
		135	_math_horner_bezier_curve(map->Points, to[i], u,
		136	dimension, map->Order);
		137	}
		138
		139	dest->Size = MAX2(dest->Size, (GLint) dimension);
		140	}
		141
		142
		143	static void eval1_1ui( GLvector1ui *dest,
		144	GLfloat coord[][4],
		145	const GLuint *flags,
		146	const struct gl_1d_map *map )
		147	{
		148	const GLfloat u1 = map->u1;
		149	const GLfloat du = map->du;
		150	GLuint *to = dest->data;
		151	GLuint i;
		152
		153	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		154	if (flags[i] & (VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1)) {
		155	GLfloat u = (coord[i][0] - u1) * du;
		156	GLfloat tmp;
		157	_math_horner_bezier_curve(map->Points, &tmp, u, 1, map->Order);
		158	to[i] = (GLuint) (GLint) tmp;
		159	}
		160
		161	}
		162
		163	static void eval1_norm( GLvector4f *dest,
		164	GLfloat coord[][4],
		165	const GLuint *flags,
		166	const struct gl_1d_map *map )
		167	{
		168	const GLfloat u1 = map->u1;
		169	const GLfloat du = map->du;
		170	GLfloat (*to)[4] = dest->data;
		171	GLuint i;
		172
		173	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		174	if (flags[i] & (VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1)) {
		175	GLfloat u = (coord[i][0] - u1) * du;
		176	_math_horner_bezier_curve(map->Points, to[i], u, 3, map->Order);
		177	}
		178	}
		179
		180
		181	static void eval2_obj_norm( GLvector4f *obj_ptr,
		182	GLvector4f *norm_ptr,
		183	GLfloat coord[][4],
		184	GLuint *flags,
		185	GLuint dimension,
		186	const struct gl_2d_map *map )
		187	{
		188	const GLfloat u1 = map->u1;
		189	const GLfloat du = map->du;
		190	const GLfloat v1 = map->v1;
		191	const GLfloat dv = map->dv;
		192	GLfloat (*obj)[4] = obj_ptr->data;
		193	GLfloat (*normal)[4] = norm_ptr->data;
		194	GLuint i;
		195
		196	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		197	if (flags[i] & (VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2)) {
		198	GLfloat u = (coord[i][0] - u1) * du;
		199	GLfloat v = (coord[i][1] - v1) * dv;
		200	GLfloat du[4], dv[4];
		201
		202	ASSIGN_4V(obj[i], 0,0,0,1);
		203	_math_de_casteljau_surf(map->Points, obj[i], du, dv, u, v, dimension,
		204	map->Uorder, map->Vorder);
		205
		206	if (dimension == 4) {
		207	du[0] = du[0]obj[i][3] - du[3]obj[i][0];
		208	du[1] = du[1]obj[i][3] - du[3]obj[i][1];
		209	du[2] = du[2]obj[i][3] - du[3]obj[i][2];
		210
		211	dv[0] = dv[0]obj[i][3] - dv[3]obj[i][0];
		212	dv[1] = dv[1]obj[i][3] - dv[3]obj[i][1];
		213	dv[2] = dv[2]obj[i][3] - dv[3]obj[i][2];
		214	}
		215
		216	CROSS3(normal[i], du, dv);
		217	NORMALIZE_3FV(normal[i]);
		218	}
		219
		220	obj_ptr->size = MAX2(obj_ptr->size, dimension);
		221	obj_ptr->flags \|= dirty_flags[dimension];
		222	}
		223
		224
		225	static void eval2_4f( GLvector4f *dest,
		226	GLfloat coord[][4],
		227	const GLuint *flags,
		228	GLuint dimension,
		229	const struct gl_2d_map *map )
		230	{
		231	const GLfloat u1 = map->u1;
		232	const GLfloat du = map->du;
		233	const GLfloat v1 = map->v1;
		234	const GLfloat dv = map->dv;
		235	GLfloat (*to)[4] = dest->data;
		236	GLuint i;
		237
		238	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		239	if (flags[i] & (VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2)) {
		240	GLfloat u = (coord[i][0] - u1) * du;
		241	GLfloat v = (coord[i][1] - v1) * dv;
		242
		243	_math_horner_bezier_surf(map->Points, to[i], u, v, dimension,
		244	map->Uorder, map->Vorder);
		245	}
		246
		247	dest->size = MAX2(dest->size, dimension);
		248	dest->flags \|= dirty_flags[dimension];
		249	}
		250
		251
		252	/* as above, but dest is a gl_client_array */
		253	static void eval2_4f_ca( struct gl_client_array *dest,
		254	GLfloat coord[][4],
		255	const GLuint *flags,
		256	GLuint dimension,
		257	const struct gl_2d_map *map )
		258	{
		259	const GLfloat u1 = map->u1;
		260	const GLfloat du = map->du;
		261	const GLfloat v1 = map->v1;
		262	const GLfloat dv = map->dv;
		263	GLfloat (to)[4] = (GLfloat ()[4])dest->Ptr;
		264	GLuint i;
		265
		266	ASSERT(dest->Type == GL_FLOAT);
		267	ASSERT(dest->StrideB == 4 * sizeof(GLfloat));
		268
		269	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		270	if (flags[i] & (VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2)) {
		271	GLfloat u = (coord[i][0] - u1) * du;
		272	GLfloat v = (coord[i][1] - v1) * dv;
		273	_math_horner_bezier_surf(map->Points, to[i], u, v, dimension,
		274	map->Uorder, map->Vorder);
		275	}
		276
		277	dest->Size = MAX2(dest->Size, (GLint) dimension);
		278	}
		279
		280
		281	static void eval2_norm( GLvector4f *dest,
		282	GLfloat coord[][4],
		283	GLuint *flags,
		284	const struct gl_2d_map *map )
		285	{
		286	const GLfloat u1 = map->u1;
		287	const GLfloat du = map->du;
		288	const GLfloat v1 = map->v1;
		289	const GLfloat dv = map->dv;
		290	GLfloat (*to)[4] = dest->data;
		291	GLuint i;
		292
		293	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++) {
		294	if (flags[i] & (VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2)) {
		295	GLfloat u = (coord[i][0] - u1) * du;
		296	GLfloat v = (coord[i][1] - v1) * dv;
		297	_math_horner_bezier_surf(map->Points, to[i], u, v, 3,
		298	map->Uorder, map->Vorder);
		299	}
		300	}
		301	}
		302
		303
		304	static void eval2_1ui( GLvector1ui *dest,
		305	GLfloat coord[][4],
		306	const GLuint *flags,
		307	const struct gl_2d_map *map )
		308	{
		309	const GLfloat u1 = map->u1;
		310	const GLfloat du = map->du;
		311	const GLfloat v1 = map->v1;
		312	const GLfloat dv = map->dv;
		313	GLuint *to = dest->data;
		314	GLuint i;
		315
		316	for (i = 0 ; !(flags[i] & VERT_BIT_END_VB) ; i++)
		317	if (flags[i] & (VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2)) {
		318	GLfloat u = (coord[i][0] - u1) * du;
		319	GLfloat v = (coord[i][1] - v1) * dv;
		320	GLfloat tmp;
		321	_math_horner_bezier_surf(map->Points, &tmp, u, v, 1,
		322	map->Uorder, map->Vorder);
		323
		324	to[i] = (GLuint) (GLint) tmp;
		325	}
		326	}
		327
		328
		329	static void copy_4f( GLfloat to[][4], GLfloat from[][4], GLuint count )
		330	{
		331	MEMCPY( to, from, count * sizeof(to[0]));
		332	}
		333
		334	static void copy_4f_stride( GLfloat to[][4], const GLfloat *from,
		335	GLuint stride, GLuint count )
		336	{
		337	if (stride == 4 * sizeof(GLfloat))
		338	MEMCPY( to, from, count * sizeof(to[0]));
		339	else {
		340	GLuint i;
		341	for (i = 0 ; i < count ; i++, STRIDE_F(from, stride))
		342	COPY_4FV( to[i], from );
		343	}
		344	}
		345
		346	static void copy_3f( GLfloat to[][4], GLfloat from[][4], GLuint count )
		347	{
		348	GLuint i;
		349	for (i = 0 ; i < count ; i++) {
		350	COPY_3FV(to[i], from[i]);
		351	}
		352	}
		353
		354
		355	static void copy_1ui( GLuint to[], const GLuint from[], GLuint count )
		356	{
		357	MEMCPY( to, from, (count) * sizeof(to[0]));
		358	}
		359
		360
		361
		362	/* Translate eval enabled flags to VERT_* flags.
		363	*/
		364	static void update_eval( GLcontext *ctx )
		365	{
		366	TNLcontext *tnl = TNL_CONTEXT(ctx);
		367	GLuint eval1 = 0, eval2 = 0;
		368	GLuint i;
		369
		370	if (ctx->Eval.Map1Index)
		371	eval1 \|= VERT_BIT_INDEX;
		372
		373	if (ctx->Eval.Map2Index)
		374	eval2 \|= VERT_BIT_INDEX;
		375
		376	if (ctx->Eval.Map1Color4)
		377	eval1 \|= VERT_BIT_COLOR0;
		378
		379	if (ctx->Eval.Map2Color4)
		380	eval2 \|= VERT_BIT_COLOR0;
		381
		382	if (ctx->Eval.Map1Normal)
		383	eval1 \|= VERT_BIT_NORMAL;
		384
		385	if (ctx->Eval.Map2Normal)
		386	eval2 \|= VERT_BIT_NORMAL;
		387
		388	if (ctx->Eval.Map1TextureCoord4 \|\|
		389	ctx->Eval.Map1TextureCoord3 \|\|
		390	ctx->Eval.Map1TextureCoord2 \|\|
		391	ctx->Eval.Map1TextureCoord1)
		392	eval1 \|= VERT_BIT_TEX0;
		393
		394	if (ctx->Eval.Map2TextureCoord4 \|\|
		395	ctx->Eval.Map2TextureCoord3 \|\|
		396	ctx->Eval.Map2TextureCoord2 \|\|
		397	ctx->Eval.Map2TextureCoord1)
		398	eval2 \|= VERT_BIT_TEX0;
		399
		400	if (ctx->Eval.Map1Vertex4)
		401	eval1 \|= VERT_BITS_OBJ_234;
		402
		403	if (ctx->Eval.Map1Vertex3)
		404	eval1 \|= VERT_BITS_OBJ_23;
		405
		406	if (ctx->Eval.Map2Vertex4) {
		407	if (ctx->Eval.AutoNormal)
		408	eval2 \|= VERT_BITS_OBJ_234 \| VERT_BIT_NORMAL;
		409	else
		410	eval2 \|= VERT_BITS_OBJ_234;
		411	}
		412	else if (ctx->Eval.Map2Vertex3) {
		413	if (ctx->Eval.AutoNormal)
		414	eval2 \|= VERT_BITS_OBJ_23 \| VERT_BIT_NORMAL;
		415	else
		416	eval2 \|= VERT_BITS_OBJ_23;
		417	}
		418
		419	tnl->eval.EvalMap1Flags = eval1;
		420	tnl->eval.EvalMap2Flags = eval2;
		421
		422	/* GL_NV_vertex_program evaluators */
		423	eval1 = eval2 = 0;
		424	for (i = 0; i < VERT_ATTRIB_MAX; i++) {
		425	if (ctx->Eval.Map1Attrib[i])
		426	eval1 \|= (1 << i);
		427	if (ctx->Eval.Map2Attrib[i])
		428	eval2 \|= (1 << i);
		429	}
		430	tnl->eval.EvalMap1AttribFlags = eval1;
		431	tnl->eval.EvalMap2AttribFlags = eval2;
		432
		433	tnl->eval.EvalNewState = 0;
		434	}
		435
		436
		437	/* This looks a lot like a pipeline stage, but for various reasons is
		438	* better handled outside the pipeline, and considered the final stage
		439	* of fixing up an immediate struct for execution.
		440	*
		441	* Really want to cache the results of this function in display lists,
		442	* at least for EvalMesh commands.
		443	*/
		444	void _tnl_eval_immediate( GLcontext ctx, struct immediate IM )
		445	{
		446	TNLcontext *tnl = TNL_CONTEXT(ctx);
		447	struct vertex_arrays *tmp = &tnl->imm_inputs;
		448	struct immediate *store = tnl->eval.im;
		449	GLuint *flags = IM->Flag + IM->CopyStart;
		450	GLuint copycount;
		451	GLuint orflag = IM->OrFlag;
		452	GLuint any_eval1 = orflag & (VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1);
		453	GLuint any_eval2 = orflag & (VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2);
		454	GLuint req = 0;
		455	GLuint purge_flags = 0;
		456	GLfloat (*coord)[4] = IM->Attrib[VERT_ATTRIB_POS] + IM->CopyStart;
		457
		458	if (IM->AndFlag & VERT_BITS_EVAL_ANY)
		459	copycount = IM->Start - IM->CopyStart; /* just copy copied vertices */
		460	else
		461	copycount = IM->Count - IM->CopyStart; /* copy all vertices */
		462
		463	if (!store)
		464	store = tnl->eval.im = _tnl_alloc_immediate( ctx );
		465
		466	if (tnl->eval.EvalNewState & _NEW_EVAL)
		467	update_eval( ctx );
		468
		469	if (any_eval1) {
		470	req \|= tnl->pipeline.inputs
		471	& (tnl->eval.EvalMap1Flags \| tnl->eval.EvalMap1AttribFlags);
		472
		473	if (!ctx->Eval.Map1Vertex4 && !ctx->Eval.Map1Vertex3 &&
		474	!ctx->Eval.Map1Attrib[0])
		475	purge_flags = (VERT_BIT_EVAL_P1\|VERT_BIT_EVAL_C1);
		476
		477	if (orflag & VERT_BIT_EVAL_P1) {
		478	eval_points1( store->Attrib[VERT_ATTRIB_POS] + IM->CopyStart,
		479	coord, flags,
		480	ctx->Eval.MapGrid1du,
		481	ctx->Eval.MapGrid1u1);
		482
		483	coord = store->Attrib[VERT_ATTRIB_POS] + IM->CopyStart;
		484	}
		485	}
		486
		487	if (any_eval2) {
		488	req \|= tnl->pipeline.inputs
		489	& (tnl->eval.EvalMap2Flags \| tnl->eval.EvalMap2AttribFlags);
		490
		491	if (!ctx->Eval.Map2Vertex4 && !ctx->Eval.Map2Vertex3 &&
		492	!ctx->Eval.Map2Attrib[0])
		493	purge_flags \|= (VERT_BIT_EVAL_P2\|VERT_BIT_EVAL_C2);
		494
		495	if (orflag & VERT_BIT_EVAL_P2) {
		496	eval_points2( store->Attrib[VERT_ATTRIB_POS] + IM->CopyStart,
		497	coord, flags,
		498	ctx->Eval.MapGrid2du,
		499	ctx->Eval.MapGrid2u1,
		500	ctx->Eval.MapGrid2dv,
		501	ctx->Eval.MapGrid2v1 );
		502
		503	coord = store->Attrib[VERT_ATTRIB_POS] + IM->CopyStart;
		504	}
		505	}
		506
		507	/* Perform the evaluations on active data elements.
		508	*/
		509	if (req & VERT_BIT_INDEX) {
		510	GLuint generated = 0;
		511
		512	if (copycount)
		513	copy_1ui( store->Index + IM->CopyStart, tmp->Index.data, copycount );
		514
		515	tmp->Index.data = store->Index + IM->CopyStart;
		516	tmp->Index.start = store->Index + IM->CopyStart;
		517
		518	if (ctx->Eval.Map1Index && any_eval1) {
		519	eval1_1ui( &tmp->Index, coord, flags, &ctx->EvalMap.Map1Index );
		520	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		521	}
		522
		523	if (ctx->Eval.Map2Index && any_eval2) {
		524	eval2_1ui( &tmp->Index, coord, flags, &ctx->EvalMap.Map2Index );
		525	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		526	}
		527	}
		528
		529	if (req & VERT_BIT_COLOR0) {
		530	GLuint generated = 0;
		531
		532	if (copycount)
		533	copy_4f_stride( store->Attrib[VERT_ATTRIB_COLOR0] + IM->CopyStart,
		534	(GLfloat *)tmp->Color.Ptr,
		535	tmp->Color.StrideB,
		536	copycount );
		537
		538	tmp->Color.Ptr = store->Attrib[VERT_ATTRIB_COLOR0] + IM->CopyStart;
		539	tmp->Color.StrideB = 4 * sizeof(GLfloat);
		540	tmp->Color.Flags = 0;
		541	tnl->vb.importable_data &= ~VERT_BIT_COLOR0;
		542
		543	if (ctx->VertexProgram.Enabled) {
		544	tmp->Attribs[VERT_ATTRIB_COLOR0].data =
		545	store->Attrib[VERT_ATTRIB_COLOR0] + IM->CopyStart;
		546	tmp->Attribs[VERT_ATTRIB_COLOR0].start =
		547	(GLfloat *) tmp->Attribs[VERT_ATTRIB_COLOR0].data;
		548	tmp->Attribs[VERT_ATTRIB_COLOR0].size = 0;
		549	}
		550
		551	/* Vertex program maps have priority over conventional attribs */
		552	if (any_eval1) {
		553	if (ctx->VertexProgram.Enabled
		554	&& ctx->Eval.Map1Attrib[VERT_ATTRIB_COLOR0]) {
		555	eval1_4f_ca( &tmp->Color, coord, flags, 4,
		556	&ctx->EvalMap.Map1Attrib[VERT_ATTRIB_COLOR0] );
		557	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		558	}
		559	else if (ctx->Eval.Map1Color4) {
		560	eval1_4f_ca( &tmp->Color, coord, flags, 4,
		561	&ctx->EvalMap.Map1Color4 );
		562	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		563	}
		564	}
		565
		566	if (any_eval2) {
		567	if (ctx->VertexProgram.Enabled
		568	&& ctx->Eval.Map2Attrib[VERT_ATTRIB_COLOR0]) {
		569	eval2_4f_ca( &tmp->Color, coord, flags, 4,
		570	&ctx->EvalMap.Map2Attrib[VERT_ATTRIB_COLOR0] );
		571	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		572	}
		573	else if (ctx->Eval.Map2Color4) {
		574	eval2_4f_ca( &tmp->Color, coord, flags, 4,
		575	&ctx->EvalMap.Map2Color4 );
		576	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		577	}
		578	}
		579	}
		580
		581	if (req & VERT_BIT_TEX0) {
		582	GLuint generated = 0;
		583
		584	if (copycount)
		585	copy_4f( store->Attrib[VERT_ATTRIB_TEX0] + IM->CopyStart,
		586	tmp->TexCoord[0].data, copycount );
		587	else
		588	tmp->TexCoord[0].size = 0;
		589
		590	tmp->TexCoord[0].data = store->Attrib[VERT_ATTRIB_TEX0] + IM->CopyStart;
		591	tmp->TexCoord[0].start = (GLfloat *)tmp->TexCoord[0].data;
		592
		593	if (ctx->VertexProgram.Enabled) {
		594	tmp->Attribs[VERT_ATTRIB_TEX0].data =
		595	store->Attrib[VERT_ATTRIB_TEX0] + IM->CopyStart;
		596	tmp->Attribs[VERT_ATTRIB_TEX0].start =
		597	(GLfloat *) tmp->Attribs[VERT_ATTRIB_TEX0].data;
		598	tmp->Attribs[VERT_ATTRIB_TEX0].size = 0;
		599	}
		600
		601	/* Vertex program maps have priority over conventional attribs */
		602	if (any_eval1) {
		603	if (ctx->VertexProgram.Enabled
		604	&& ctx->Eval.Map1Attrib[VERT_ATTRIB_TEX0]) {
		605	eval1_4f( &tmp->TexCoord[0], coord, flags, 4,
		606	&ctx->EvalMap.Map1Attrib[VERT_ATTRIB_TEX0] );
		607	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		608	}
		609	else if (ctx->Eval.Map1TextureCoord4) {
		610	eval1_4f( &tmp->TexCoord[0], coord, flags, 4,
		611	&ctx->EvalMap.Map1Texture4 );
		612	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		613	}
		614	else if (ctx->Eval.Map1TextureCoord3) {
		615	eval1_4f( &tmp->TexCoord[0], coord, flags, 3,
		616	&ctx->EvalMap.Map1Texture3 );
		617	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		618	}
		619	else if (ctx->Eval.Map1TextureCoord2) {
		620	eval1_4f( &tmp->TexCoord[0], coord, flags, 2,
		621	&ctx->EvalMap.Map1Texture2 );
		622	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		623	}
		624	else if (ctx->Eval.Map1TextureCoord1) {
		625	eval1_4f( &tmp->TexCoord[0], coord, flags, 1,
		626	&ctx->EvalMap.Map1Texture1 );
		627	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		628	}
		629	}
		630
		631	if (any_eval2) {
		632	if (ctx->VertexProgram.Enabled
		633	&& ctx->Eval.Map2Attrib[VERT_ATTRIB_TEX0]) {
		634	eval2_4f( &tmp->TexCoord[0], coord, flags, 4,
		635	&ctx->EvalMap.Map2Attrib[VERT_ATTRIB_TEX0] );
		636	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		637	}
		638	else if (ctx->Eval.Map2TextureCoord4) {
		639	eval2_4f( &tmp->TexCoord[0], coord, flags, 4,
		640	&ctx->EvalMap.Map2Texture4 );
		641	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		642	}
		643	else if (ctx->Eval.Map2TextureCoord3) {
		644	eval2_4f( &tmp->TexCoord[0], coord, flags, 3,
		645	&ctx->EvalMap.Map2Texture3 );
		646	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		647	}
		648	else if (ctx->Eval.Map2TextureCoord2) {
		649	eval2_4f( &tmp->TexCoord[0], coord, flags, 2,
		650	&ctx->EvalMap.Map2Texture2 );
		651	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		652	}
		653	else if (ctx->Eval.Map2TextureCoord1) {
		654	eval2_4f( &tmp->TexCoord[0], coord, flags, 1,
		655	&ctx->EvalMap.Map2Texture1 );
		656	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		657	}
		658	}
		659	}
		660
		661	if (req & VERT_BIT_NORMAL) {
		662	GLuint generated = 0;
		663
		664	if (copycount) {
		665	copy_3f( store->Attrib[VERT_ATTRIB_NORMAL] + IM->CopyStart,
		666	tmp->Normal.data, copycount );
		667	}
		668
		669	tmp->Normal.data = store->Attrib[VERT_ATTRIB_NORMAL] + IM->CopyStart;
		670	tmp->Normal.start = (GLfloat *)tmp->Normal.data;
		671
		672	if (ctx->VertexProgram.Enabled) {
		673	tmp->Attribs[VERT_ATTRIB_NORMAL].data =
		674	store->Attrib[VERT_ATTRIB_NORMAL] + IM->CopyStart;
		675	tmp->Attribs[VERT_ATTRIB_NORMAL].start =
		676	(GLfloat *) tmp->Attribs[VERT_ATTRIB_NORMAL].data;
		677	tmp->Attribs[VERT_ATTRIB_NORMAL].size = 0;
		678	}
		679
		680	if (any_eval1) {
		681	if (ctx->VertexProgram.Enabled &&
		682	ctx->Eval.Map1Attrib[VERT_ATTRIB_NORMAL]) {
		683	eval1_norm( &tmp->Normal, coord, flags,
		684	&ctx->EvalMap.Map1Attrib[VERT_ATTRIB_NORMAL] );
		685	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		686	}
		687	else if (ctx->Eval.Map1Normal) {
		688	eval1_norm( &tmp->Normal, coord, flags, &ctx->EvalMap.Map1Normal );
		689	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		690	}
		691	}
		692
		693	if (any_eval2) {
		694	if (ctx->VertexProgram.Enabled &&
		695	ctx->Eval.Map2Attrib[VERT_ATTRIB_NORMAL]) {
		696	eval2_norm( &tmp->Normal, coord, flags,
		697	&ctx->EvalMap.Map2Attrib[VERT_ATTRIB_NORMAL] );
		698	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		699	}
		700	else if (ctx->Eval.Map2Normal) {
		701	eval2_norm( &tmp->Normal, coord, flags, &ctx->EvalMap.Map2Normal );
		702	generated \|= VERT_BIT_EVAL_C2\|VERT_BIT_EVAL_P2;
		703	}
		704	}
		705	}
		706
		707	/* In the AutoNormal case, the copy and assignment of tmp->NormalPtr
		708	* are done above.
		709	*/
		710	if (req & VERT_BIT_POS) {
		711	if (copycount) {
		712	/* This copy may already have occurred when eliminating
		713	* glEvalPoint calls:
		714	*/
		715	if (coord != store->Attrib[VERT_ATTRIB_POS] + IM->CopyStart) {
		716	copy_4f( store->Attrib[VERT_ATTRIB_POS] + IM->CopyStart,
		717	tmp->Obj.data, copycount );
		718	}
		719	}
		720	else {
		721	tmp->Obj.size = 0;
		722	}
		723
		724	tmp->Obj.data = store->Attrib[VERT_ATTRIB_POS] + IM->CopyStart;
		725	tmp->Obj.start = (GLfloat *) tmp->Obj.data;
		726
		727	#if 1
		728	/tmp->Attribs[0].count = count;/
		729	tmp->Attribs[0].data = store->Attrib[0] + IM->CopyStart;
		730	tmp->Attribs[0].start = (GLfloat *) tmp->Attribs[0].data;
		731	tmp->Attribs[0].size = 0;
		732	#endif
		733
		734	/* Note: Normal data is already prepared above.
		735	*/
		736
		737	if (any_eval1) {
		738	if (ctx->VertexProgram.Enabled &&
		739	ctx->Eval.Map1Attrib[VERT_ATTRIB_POS]) {
		740	eval1_4f( &tmp->Obj, coord, flags, 4,
		741	&ctx->EvalMap.Map1Attrib[VERT_ATTRIB_POS] );
		742	}
		743	else if (ctx->Eval.Map1Vertex4) {
		744	eval1_4f( &tmp->Obj, coord, flags, 4,
		745	&ctx->EvalMap.Map1Vertex4 );
		746	}
		747	else if (ctx->Eval.Map1Vertex3) {
		748	eval1_4f( &tmp->Obj, coord, flags, 3,
		749	&ctx->EvalMap.Map1Vertex3 );
		750	}
		751	}
		752
		753	if (any_eval2) {
		754	if (ctx->VertexProgram.Enabled &&
		755	ctx->Eval.Map2Attrib[VERT_ATTRIB_POS]) {
		756	if (ctx->Eval.AutoNormal && (req & VERT_BIT_NORMAL))
		757	eval2_obj_norm( &tmp->Obj, &tmp->Normal, coord, flags, 4,
		758	&ctx->EvalMap.Map2Attrib[VERT_ATTRIB_POS] );
		759	else
		760	eval2_4f( &tmp->Obj, coord, flags, 4,
		761	&ctx->EvalMap.Map2Attrib[VERT_ATTRIB_POS] );
		762	}
		763	else if (ctx->Eval.Map2Vertex4) {
		764	if (ctx->Eval.AutoNormal && (req & VERT_BIT_NORMAL))
		765	eval2_obj_norm( &tmp->Obj, &tmp->Normal, coord, flags, 4,
		766	&ctx->EvalMap.Map2Vertex4 );
		767	else
		768	eval2_4f( &tmp->Obj, coord, flags, 4,
		769	&ctx->EvalMap.Map2Vertex4 );
		770	}
		771	else if (ctx->Eval.Map2Vertex3) {
		772	if (ctx->Eval.AutoNormal && (req & VERT_BIT_NORMAL))
		773	eval2_obj_norm( &tmp->Obj, &tmp->Normal, coord, flags, 3,
		774	&ctx->EvalMap.Map2Vertex3 );
		775	else
		776	eval2_4f( &tmp->Obj, coord, flags, 3,
		777	&ctx->EvalMap.Map2Vertex3 );
		778	}
		779	}
		780	}
		781
		782
		783	if (ctx->VertexProgram.Enabled) {
		784	/* We already evaluated position, normal, color and texture 0 above.
		785	* now evaluate any other generic attributes.
		786	*/
		787	const GLuint skipBits = (VERT_BIT_POS \|
		788	VERT_BIT_NORMAL \|
		789	VERT_BIT_COLOR0 \|
		790	VERT_BIT_TEX0);
		791	GLuint generated = 0;
		792	GLuint attr;
		793	for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {
		794	if ((1 << attr) & req & ~skipBits) {
		795	if (any_eval1 && ctx->Eval.Map1Attrib[attr]) {
		796	/* evaluate 1-D vertex attrib map [i] */
		797	eval1_4f( &tmp->Attribs[attr], coord, flags, 4,
		798	&ctx->EvalMap.Map1Attrib[attr] );
		799	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		800	}
		801	if (any_eval2 && ctx->Eval.Map2Attrib[attr]) {
		802	/* evaluate 2-D vertex attrib map [i] */
		803	eval2_4f( &tmp->Attribs[attr], coord, flags, 4,
		804	&ctx->EvalMap.Map2Attrib[attr] );
		805	generated \|= VERT_BIT_EVAL_C1\|VERT_BIT_EVAL_P1;
		806	}
		807	}
		808	}
		809	}
		810
		811	/* Calculate new IM->Elts, IM->Primitive, IM->PrimitiveLength for
		812	* the case where vertex maps are not enabled for some received
		813	* eval coordinates. In this case those slots in the immediate
		814	* must be ignored.
		815	*/
		816	if (purge_flags) {
		817	const GLuint vertex = VERT_BIT_POS\|(VERT_BITS_EVAL_ANY & ~purge_flags);
		818	GLuint last_new_prim = 0;
		819	GLuint new_prim_length = 0;
		820	GLuint next_old_prim = 0;
		821	struct vertex_buffer *VB = &tnl->vb;
		822	const GLuint count = VB->Count;
		823	GLuint i, j;
		824
		825	for (i = 0, j = 0 ; i < count ; i++) {
		826	if (flags[i] & vertex) {
		827	store->Elt[j++] = i;
		828	new_prim_length++;
		829	}
		830	if (i == next_old_prim) {
		831	next_old_prim += VB->PrimitiveLength[i];
		832	VB->PrimitiveLength[last_new_prim] = new_prim_length;
		833	VB->Primitive[j] = VB->Primitive[i];
		834	last_new_prim = j;
		835	}
		836	}
		837
		838	VB->Elts = store->Elt;
		839	_tnl_get_purged_copy_verts( ctx, store );
		840	}
		841
		842	/* Produce new flags array:
		843	*/
		844	{
		845	const GLuint count = tnl->vb.Count + 1;
		846	GLuint i;
		847
		848	copy_1ui( store->Flag, flags, count );
		849	tnl->vb.Flag = store->Flag;
		850	for (i = 0 ; i < count ; i++)
		851	store->Flag[i] \|= req;
		852	IM->Evaluated = req; /* hack for copying. */
		853	}
		854	}

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(root)/shark/branches/xen/ports/mesa/src/tnl/t_imm_eval.c - Rev 1618