WebSVN - shark - Blame - Rev 1618 - /shark/branches/xen/ports/mesa/src/vpstate.c

Rev	Author	Line No.	Line
55	pj	1	/* $Id: vpstate.c,v 1.1 2003-02-28 11:42:06 pj Exp $ */
		2
		3	/*
		4	* Mesa 3-D graphics library
		5	* Version: 4.1
		6	*
		7	* Copyright (C) 1999-2001 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
		27	/*
		28	* -------- Regarding NV_vertex_program --------
		29	* Redistribution and use in source and binary forms, with or without
		30	* modification, are permitted provided that the following conditions are met:
		31	*
		32	* o Redistribution of the source code must contain a copyright notice
		33	* and this list of conditions;
		34	*
		35	* o Redistribution in binary and source code form must contain the
		36	* following Notice in the software and any documentation and/or other
		37	* materials provided with the distribution; and
		38	*
		39	* o The name of Nvidia may not be used to promote or endorse software
		40	* derived from the software.
		41	*
		42	* NOTICE: Nvidia hereby grants to each recipient a non-exclusive worldwide
		43	* royalty free patent license under patent claims that are licensable by
		44	* Nvidia and which are necessarily required and for which no commercially
		45	* viable non infringing alternative exists to make, use, sell, offer to sell,
		46	* import and otherwise transfer the vertex extension for the Mesa 3D Graphics
		47	* Library as distributed in source code and object code form. No hardware or
		48	* hardware implementation (including a semiconductor implementation and chips)
		49	* are licensed hereunder. If a recipient makes a patent claim or institutes
		50	* patent litigation against Nvidia or Nvidia's customers for use or sale of
		51	* Nvidia products, then this license grant as to such recipient shall
		52	* immediately terminate and recipient immediately agrees to cease use and
		53	* distribution of the Mesa Program and derivatives thereof.
		54	*
		55	* THE MESA 3D GRAPHICS LIBRARY IS PROVIDED ON AN "AS IS BASIS, WITHOUT
		56	* WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING,
		57	* WITHOUT LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-NFRINGEMENT
		58	* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
		59	*
		60	* NVIDIA SHALL NOT HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		61	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION
		62	* LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
		63	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
		64	* ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE MESA 3D GRAPHICS
		65	* LIBRARY OR EVIDENCE OR THE EXERCISE OF ANY RIGHTS GRANTED HEREUNDR, EVEN
		66	* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		67	*
		68	* If you do not comply with this agreement, then Nvidia may cancel the license
		69	* and rights granted herein.
		70	* ---------------------------------------------
		71	*/
		72
		73	/**
		74	* \file vpstate.c
		75	* \brief Vertex program state management functions (most map to API functions)
		76	* \author Brian Paul
		77	*/
		78
		79
		80	#include "glheader.h"
		81	#include "context.h"
		82	#include "hash.h"
		83	#include "imports.h"
		84	#include "macros.h"
		85	#include "mtypes.h"
		86	#include "vpexec.h"
		87	#include "vpparse.h"
		88	#include "vpstate.h"
		89
		90
		91	/**
		92	* Delete a program and remove it from the hash table, ignoring the
		93	* reference count.
		94	* \note Called from the GL API dispatcher.
		95	*/
		96	void _mesa_delete_program(GLcontext *ctx, GLuint id)
		97	{
		98	struct vp_program vprog = (struct vp_program )
		99	_mesa_HashLookup(ctx->Shared->VertexPrograms, id);
		100
		101	if (vprog) {
		102	if (vprog->String)
		103	FREE(vprog->String);
		104	if (vprog->Instructions)
		105	FREE(vprog->Instructions);
		106	_mesa_HashRemove(ctx->Shared->VertexPrograms, id);
		107	FREE(vprog);
		108	}
		109	}
		110
		111
		112	/**
		113	* Bind a program (make it current)
		114	* \note Called from the GL API dispatcher.
		115	*/
		116	void _mesa_BindProgramNV(GLenum target, GLuint id)
		117	{
		118	struct vp_program *vprog;
		119	GET_CURRENT_CONTEXT(ctx);
		120	ASSERT_OUTSIDE_BEGIN_END(ctx);
		121
		122	if (target != GL_VERTEX_PROGRAM_NV) {
		123	_mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramNV");
		124	return;
		125	}
		126
		127	if (id == ctx->VertexProgram.CurrentID)
		128	return;
		129
		130	/* decrement refcount on previously bound vertex program */
		131	if (ctx->VertexProgram.Current) {
		132	ctx->VertexProgram.Current->RefCount--;
		133	/* and delete if refcount goes below one */
		134	if (ctx->VertexProgram.Current->RefCount <= 0)
		135	_mesa_delete_program(ctx, ctx->VertexProgram.CurrentID);
		136	}
		137
		138	/* NOTE: binding to a non-existant program is not an error.
		139	* That's supposed to be caught in glBegin.
		140	*/
		141	vprog = (struct vp_program *)
		142	_mesa_HashLookup(ctx->Shared->VertexPrograms, id);
		143
		144	if (!vprog && id > 0){
		145	/* new program ID */
		146	vprog = CALLOC_STRUCT(vp_program);
		147	if (!vprog) {
		148	_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV");
		149	return;
		150	}
		151	vprog->Target = target;
		152	vprog->Resident = GL_TRUE;
		153	vprog->RefCount = 1;
		154	_mesa_HashInsert(ctx->Shared->VertexPrograms, id, vprog);
		155	}
		156
		157	ctx->VertexProgram.CurrentID = id;
		158	ctx->VertexProgram.Current = vprog;
		159	if (vprog)
		160	vprog->RefCount++;
		161	}
		162
		163
		164	/**
		165	* Delete a list of programs.
		166	* \note Not compiled into display lists.
		167	* \note Called from the GL API dispatcher.
		168	*/
		169	void _mesa_DeleteProgramsNV(GLsizei n, const GLuint *ids)
		170	{
		171	GLint i;
		172	GET_CURRENT_CONTEXT(ctx);
		173	ASSERT_OUTSIDE_BEGIN_END(ctx);
		174
		175	if (n < 0) {
		176	_mesa_error( ctx, GL_INVALID_VALUE, "glDeleteProgramsNV" );
		177	return;
		178	}
		179
		180	for (i = 0; i < n; i++) {
		181	if (ids[i] != 0) {
		182	struct vp_program vprog = (struct vp_program )
		183	_mesa_HashLookup(ctx->Shared->VertexPrograms, ids[i]);
		184	if (ctx->VertexProgram.CurrentID == ids[i]) {
		185	/* unbind this currently bound program */
		186	_mesa_BindProgramNV(vprog->Target, 0);
		187	}
		188	if (vprog) {
		189	vprog->RefCount--;
		190	if (vprog->RefCount <= 0) {
		191	_mesa_delete_program(ctx, ids[i]);
		192	}
		193	}
		194	}
		195	}
		196	}
		197
		198
		199	/**
		200	* Execute a vertex state program.
		201	* \note Called from the GL API dispatcher.
		202	*/
		203	void _mesa_ExecuteProgramNV(GLenum target, GLuint id, const GLfloat *params)
		204	{
		205	struct vp_program *vprog;
		206	GET_CURRENT_CONTEXT(ctx);
		207	ASSERT_OUTSIDE_BEGIN_END(ctx);
		208
		209	if (target != GL_VERTEX_STATE_PROGRAM_NV) {
		210	_mesa_error(ctx, GL_INVALID_ENUM, "glExecuteProgramNV");
		211	return;
		212	}
		213
		214	vprog = (struct vp_program *)
		215	_mesa_HashLookup(ctx->Shared->VertexPrograms, id);
		216
		217	if (!vprog \|\| vprog->Target != GL_VERTEX_STATE_PROGRAM_NV) {
		218	_mesa_error(ctx, GL_INVALID_OPERATION, "glExecuteProgramNV");
		219	return;
		220	}
		221
		222	_mesa_init_vp_registers(ctx);
		223	_mesa_init_tracked_matrices(ctx);
		224	COPY_4V(ctx->VertexProgram.Machine.Registers[VP_INPUT_REG_START], params);
		225	_mesa_exec_program(ctx, vprog);
		226	}
		227
		228
		229	/**
		230	* Generate a list of new program identifiers.
		231	* \note Not compiled into display lists.
		232	* \note Called from the GL API dispatcher.
		233	*/
		234	void _mesa_GenProgramsNV(GLsizei n, GLuint *ids)
		235	{
		236	GLuint first;
		237	GLuint i;
		238	GET_CURRENT_CONTEXT(ctx);
		239	ASSERT_OUTSIDE_BEGIN_END(ctx);
		240
		241	if (n < 0) {
		242	_mesa_error(ctx, GL_INVALID_VALUE, "glGenProgramsNV");
		243	return;
		244	}
		245
		246	if (!ids)
		247	return;
		248
		249	first = _mesa_HashFindFreeKeyBlock(ctx->Shared->VertexPrograms, n);
		250
		251	for (i = 0; i < (GLuint) n; i++) {
		252	struct vp_program *vprog = CALLOC_STRUCT(vp_program);
		253	if (!vprog) {
		254	_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenProgramsNV");
		255	return;
		256	}
		257	vprog->RefCount = 1;
		258	_mesa_HashInsert(ctx->Shared->VertexPrograms, first + i, vprog);
		259	}
		260
		261	/* Return the program names */
		262	for (i = 0; i < (GLuint) n; i++) {
		263	ids[i] = first + i;
		264	}
		265	}
		266
		267
		268	/**
		269	* Determine if a set of programs is resident in hardware.
		270	* \note Not compiled into display lists.
		271	* \note Called from the GL API dispatcher.
		272	*/
		273	GLboolean _mesa_AreProgramsResidentNV(GLsizei n, const GLuint *ids,
		274	GLboolean *residences)
		275	{
		276	GLint i;
		277	GLboolean retVal;
		278	GET_CURRENT_CONTEXT(ctx);
		279	ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
		280
		281	if (n < 0) {
		282	_mesa_error(ctx, GL_INVALID_VALUE, "glAreProgramsResidentNV(n)");
		283	return GL_FALSE;
		284	}
		285
		286	retVal = GL_TRUE;
		287
		288	for (i = 0; i < n; i++) {
		289	struct vp_program *vprog;
		290
		291	if (ids[i] == 0) {
		292	_mesa_error(ctx, GL_INVALID_VALUE, "glAreProgramsResidentNV(id)");
		293	return GL_FALSE;
		294	}
		295
		296	vprog = (struct vp_program *)
		297	_mesa_HashLookup(ctx->Shared->VertexPrograms, ids[i]);
		298
		299	if (!vprog) {
		300	_mesa_error(ctx, GL_INVALID_VALUE, "glAreProgramsResidentNV(id)");
		301	return GL_FALSE;
		302	}
		303
		304	*residences = vprog->Resident;
		305	if (!vprog->Resident)
		306	retVal = GL_FALSE;
		307	}
		308
		309	return retVal;
		310	}
		311
		312
		313	/**
		314	* Request that a set of programs be resident in hardware.
		315	* \note Called from the GL API dispatcher.
		316	*/
		317	void _mesa_RequestResidentProgramsNV(GLsizei n, const GLuint *ids)
		318	{
		319	GLint i;
		320	GET_CURRENT_CONTEXT(ctx);
		321	ASSERT_OUTSIDE_BEGIN_END(ctx);
		322
		323	if (n < 0) {
		324	_mesa_error(ctx, GL_INVALID_VALUE, "glRequestResidentProgramsNV(n)");
		325	return;
		326	}
		327
		328	/* just error checking for now */
		329	for (i = 0; i < n; i++) {
		330	struct vp_program *vprog;
		331
		332	if (ids[i] == 0) {
		333	_mesa_error(ctx, GL_INVALID_VALUE, "glRequestResidentProgramsNV(id)");
		334	return;
		335	}
		336
		337	vprog = (struct vp_program *)
		338	_mesa_HashLookup(ctx->Shared->VertexPrograms, ids[i]);
		339
		340	if (!vprog) {
		341	_mesa_error(ctx, GL_INVALID_VALUE, "glRequestResidentProgramsNV(id)");
		342	return;
		343	}
		344
		345	vprog->Resident = GL_TRUE;
		346	}
		347	}
		348
		349
		350	/**
		351	* Get a program parameter register.
		352	* \note Not compiled into display lists.
		353	* \note Called from the GL API dispatcher.
		354	*/
		355	void _mesa_GetProgramParameterfvNV(GLenum target, GLuint index,
		356	GLenum pname, GLfloat *params)
		357	{
		358	GET_CURRENT_CONTEXT(ctx);
		359	ASSERT_OUTSIDE_BEGIN_END(ctx);
		360
		361	if (target != GL_VERTEX_PROGRAM_NV) {
		362	_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramParameterfvNV");
		363	return;
		364	}
		365
		366	if (index >= VP_NUM_PROG_REGS) {
		367	_mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramParameterfvNV");
		368	return;
		369	}
		370
		371	if (pname != GL_PROGRAM_PARAMETER_NV) {
		372	_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramParameterfvNV");
		373	return;
		374	}
		375
		376	index += VP_PROG_REG_START;
		377	COPY_4V(params, ctx->VertexProgram.Machine.Registers[index]);
		378	}
		379
		380
		381	/**
		382	* Get a program parameter register.
		383	* \note Not compiled into display lists.
		384	* \note Called from the GL API dispatcher.
		385	*/
		386	void _mesa_GetProgramParameterdvNV(GLenum target, GLuint index,
		387	GLenum pname, GLdouble *params)
		388	{
		389	GET_CURRENT_CONTEXT(ctx);
		390	ASSERT_OUTSIDE_BEGIN_END(ctx);
		391
		392	if (target != GL_VERTEX_PROGRAM_NV) {
		393	_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramParameterfvNV");
		394	return;
		395	}
		396
		397	if (index >= VP_NUM_PROG_REGS) {
		398	_mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramParameterfvNV");
		399	return;
		400	}
		401
		402	if (pname != GL_PROGRAM_PARAMETER_NV) {
		403	_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramParameterfvNV");
		404	return;
		405	}
		406
		407	index += VP_PROG_REG_START;
		408	COPY_4V(params, ctx->VertexProgram.Machine.Registers[index]);
		409	}
		410
		411
		412	/**
		413	* Get a program attribute.
		414	* \note Not compiled into display lists.
		415	* \note Called from the GL API dispatcher.
		416	*/
		417	void _mesa_GetProgramivNV(GLuint id, GLenum pname, GLint *params)
		418	{
		419	struct vp_program *vprog;
		420	GET_CURRENT_CONTEXT(ctx);
		421	ASSERT_OUTSIDE_BEGIN_END(ctx);
		422
		423	vprog = (struct vp_program *)
		424	_mesa_HashLookup(ctx->Shared->VertexPrograms, id);
		425
		426	if (!vprog) {
		427	_mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramivNV");
		428	return;
		429	}
		430
		431	switch (pname) {
		432	case GL_PROGRAM_TARGET_NV:
		433	*params = vprog->Target;
		434	return;
		435	case GL_PROGRAM_LENGTH_NV:
		436	params = vprog->String ? _mesa_strlen((char ) vprog->String) : 0;
		437	return;
		438	case GL_PROGRAM_RESIDENT_NV:
		439	*params = vprog->Resident;
		440	return;
		441	default:
		442	_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivNV(pname)");
		443	return;
		444	}
		445	}
		446
		447
		448	/**
		449	* Get the program source code.
		450	* \note Not compiled into display lists.
		451	* \note Called from the GL API dispatcher.
		452	*/
		453	void _mesa_GetProgramStringNV(GLuint id, GLenum pname, GLubyte *program)
		454	{
		455	struct vp_program *vprog;
		456	GET_CURRENT_CONTEXT(ctx);
		457	ASSERT_OUTSIDE_BEGIN_END(ctx);
		458
		459	if (pname != GL_PROGRAM_STRING_NV) {
		460	_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivNV(pname)");
		461	return;
		462	}
		463
		464	vprog = (struct vp_program *)
		465	_mesa_HashLookup(ctx->Shared->VertexPrograms, id);
		466
		467	if (!vprog) {
		468	_mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramivNV");
		469	return;
		470	}
		471
		472	if (vprog->String) {
		473	MEMCPY(program, vprog->String, _mesa_strlen((char *) vprog->String));
		474	}
		475	else {
		476	program[0] = 0;
		477	}
		478	}
		479
		480
		481	/**
		482	* Get matrix tracking information.
		483	* \note Not compiled into display lists.
		484	* \note Called from the GL API dispatcher.
		485	*/
		486	void _mesa_GetTrackMatrixivNV(GLenum target, GLuint address,
		487	GLenum pname, GLint *params)
		488	{
		489	GLuint i;
		490	GET_CURRENT_CONTEXT(ctx);
		491	ASSERT_OUTSIDE_BEGIN_END(ctx);
		492
		493	if (target != GL_VERTEX_PROGRAM_NV) {
		494	_mesa_error(ctx, GL_INVALID_ENUM, "glGetTrackMatrixivNV");
		495	return;
		496	}
		497
		498	if ((address & 0x3) \|\| address > VP_NUM_PROG_REGS) {
		499	_mesa_error(ctx, GL_INVALID_VALUE, "glGetTrackMatrixivNV(address)");
		500	return;
		501	}
		502
		503	i = address / 4;
		504
		505	switch (pname) {
		506	case GL_TRACK_MATRIX_NV:
		507	params[0] = (GLint) ctx->VertexProgram.TrackMatrix[i];
		508	return;
		509	case GL_TRACK_MATRIX_TRANSFORM_NV:
		510	params[0] = (GLint) ctx->VertexProgram.TrackMatrixTransform[i];
		511	return;
		512	default:
		513	_mesa_error(ctx, GL_INVALID_ENUM, "glGetTrackMatrixivNV");
		514	return;
		515	}
		516	}
		517
		518
		519	/**
		520	* Get a vertex (or vertex array) attribute.
		521	* \note Not compiled into display lists.
		522	* \note Called from the GL API dispatcher.
		523	*/
		524	void _mesa_GetVertexAttribdvNV(GLuint index, GLenum pname, GLdouble *params)
		525	{
		526	GET_CURRENT_CONTEXT(ctx);
		527	ASSERT_OUTSIDE_BEGIN_END(ctx);
		528
		529	if (index == 0 \|\| index >= VP_NUM_INPUT_REGS) {
		530	_mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)");
		531	return;
		532	}
		533
		534	switch (pname) {
		535	case GL_ATTRIB_ARRAY_SIZE_NV:
		536	params[0] = ctx->Array.VertexAttrib[index].Size;
		537	break;
		538	case GL_ATTRIB_ARRAY_STRIDE_NV:
		539	params[0] = ctx->Array.VertexAttrib[index].Stride;
		540	break;
		541	case GL_ATTRIB_ARRAY_TYPE_NV:
		542	params[0] = ctx->Array.VertexAttrib[index].Type;
		543	break;
		544	case GL_CURRENT_ATTRIB_NV:
		545	COPY_4V(params, ctx->Current.Attrib[index]);
		546	break;
		547	default:
		548	_mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribdvNV");
		549	return;
		550	}
		551	}
		552
		553	/**
		554	* Get a vertex (or vertex array) attribute.
		555	* \note Not compiled into display lists.
		556	* \note Called from the GL API dispatcher.
		557	*/
		558	void _mesa_GetVertexAttribfvNV(GLuint index, GLenum pname, GLfloat *params)
		559	{
		560	GET_CURRENT_CONTEXT(ctx);
		561	ASSERT_OUTSIDE_BEGIN_END(ctx);
		562
		563	if (index == 0 \|\| index >= VP_NUM_INPUT_REGS) {
		564	_mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)");
		565	return;
		566	}
		567
		568	switch (pname) {
		569	case GL_ATTRIB_ARRAY_SIZE_NV:
		570	params[0] = (GLfloat) ctx->Array.VertexAttrib[index].Size;
		571	break;
		572	case GL_ATTRIB_ARRAY_STRIDE_NV:
		573	params[0] = (GLfloat) ctx->Array.VertexAttrib[index].Stride;
		574	break;
		575	case GL_ATTRIB_ARRAY_TYPE_NV:
		576	params[0] = (GLfloat) ctx->Array.VertexAttrib[index].Type;
		577	break;
		578	case GL_CURRENT_ATTRIB_NV:
		579	COPY_4V(params, ctx->Current.Attrib[index]);
		580	break;
		581	default:
		582	_mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribdvNV");
		583	return;
		584	}
		585	}
		586
		587	/**
		588	* Get a vertex (or vertex array) attribute.
		589	* \note Not compiled into display lists.
		590	* \note Called from the GL API dispatcher.
		591	*/
		592	void _mesa_GetVertexAttribivNV(GLuint index, GLenum pname, GLint *params)
		593	{
		594	GET_CURRENT_CONTEXT(ctx);
		595	ASSERT_OUTSIDE_BEGIN_END(ctx);
		596
		597	if (index == 0 \|\| index >= VP_NUM_INPUT_REGS) {
		598	_mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)");
		599	return;
		600	}
		601
		602	switch (pname) {
		603	case GL_ATTRIB_ARRAY_SIZE_NV:
		604	params[0] = ctx->Array.VertexAttrib[index].Size;
		605	break;
		606	case GL_ATTRIB_ARRAY_STRIDE_NV:
		607	params[0] = ctx->Array.VertexAttrib[index].Stride;
		608	break;
		609	case GL_ATTRIB_ARRAY_TYPE_NV:
		610	params[0] = ctx->Array.VertexAttrib[index].Type;
		611	break;
		612	case GL_CURRENT_ATTRIB_NV:
		613	COPY_4V_CAST(params, ctx->Current.Attrib[index], GLint);
		614	break;
		615	default:
		616	_mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribdvNV");
		617	return;
		618	}
		619	}
		620
		621
		622	/**
		623	* Get a vertex array attribute pointer.
		624	* \note Not compiled into display lists.
		625	* \note Called from the GL API dispatcher.
		626	*/
		627	void _mesa_GetVertexAttribPointervNV(GLuint index, GLenum pname, GLvoid **pointer)
		628	{
		629	GET_CURRENT_CONTEXT(ctx);
		630	ASSERT_OUTSIDE_BEGIN_END(ctx);
		631
		632	if (index >= VP_NUM_PROG_REGS) {
		633	_mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribPointerNV(index)");
		634	return;
		635	}
		636
		637	if (pname != GL_ATTRIB_ARRAY_POINTER_NV) {
		638	_mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribPointerNV(pname)");
		639	return;
		640	}
		641
		642	*pointer = ctx->Array.VertexAttrib[index].Ptr;;
		643	}
		644
		645
		646	/**
		647	* Determine if id names a program.
		648	* \note Not compiled into display lists.
		649	* \note Called from the GL API dispatcher.
		650	* \param id is the program identifier
		651	* \return GL_TRUE if id is a program, else GL_FALSE.
		652	*/
		653	GLboolean _mesa_IsProgramNV(GLuint id)
		654	{
		655	struct vp_program *vprog;
		656	GET_CURRENT_CONTEXT(ctx);
		657	ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
		658
		659	if (id == 0)
		660	return GL_FALSE;
		661
		662	vprog = (struct vp_program *)
		663	_mesa_HashLookup(ctx->Shared->VertexPrograms, id);
		664
		665	if (vprog && vprog->Target)
		666	return GL_TRUE;
		667	else
		668	return GL_FALSE;
		669	}
		670
		671
		672	/**
		673	* Load a vertex program.
		674	* \note Called from the GL API dispatcher.
		675	*/
		676	void _mesa_LoadProgramNV(GLenum target, GLuint id, GLsizei len,
		677	const GLubyte *program)
		678	{
		679	struct vp_program *vprog;
		680	GLboolean newProgram = GL_FALSE;
		681	GLubyte *programCopy;
		682	GET_CURRENT_CONTEXT(ctx);
		683	ASSERT_OUTSIDE_BEGIN_END(ctx);
		684
		685	if (id == 0) {
		686	_mesa_error(ctx, GL_INVALID_VALUE, "glLoadProgramNV(id)");
		687	return;
		688	}
		689
		690	vprog = (struct vp_program *)
		691	_mesa_HashLookup(ctx->Shared->VertexPrograms, id);
		692
		693	if (vprog && vprog->Target != 0 && vprog->Target != target) {
		694	_mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV(target)");
		695	return;
		696	}
		697
		698	/* make a copy of the program string so that we can null-terminate it */
		699	/* if we change the parser to stop after <len> characters, instead of */
		700	/* looking for '\0' we can eliminate this. */
		701	programCopy = (GLubyte *) MALLOC(len + 1);
		702	if (!programCopy) {
		703	_mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV");
		704	return;
		705	}
		706	MEMCPY(programCopy, program, len);
		707	programCopy[len] = 0;
		708
		709	if (!vprog) {
		710	newProgram = GL_TRUE;
		711	vprog = CALLOC_STRUCT(vp_program);
		712	if (!vprog) {
		713	_mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV");
		714	return;
		715	}
		716	}
		717
		718	_mesa_parse_program(ctx, target, programCopy, vprog);
		719	if (ctx->VertexProgram.ErrorPos == -1) {
		720	/* loaded and parsed w/out errors */
		721	if (newProgram) {
		722	_mesa_HashInsert(ctx->Shared->VertexPrograms, id, vprog);
		723	}
		724	vprog->RefCount = 1;
		725	vprog->Resident = GL_TRUE;
		726	}
		727
		728	FREE(programCopy);
		729	}
		730
		731
		732
		733	/**
		734	* Set a program parameter register.
		735	* \note Called from the GL API dispatcher.
		736	*/
		737	void _mesa_ProgramParameter4dNV(GLenum target, GLuint index,
		738	GLdouble x, GLdouble y, GLdouble z, GLdouble w)
		739	{
		740	GET_CURRENT_CONTEXT(ctx);
		741	ASSERT_OUTSIDE_BEGIN_END(ctx);
		742
		743	if (target != GL_VERTEX_PROGRAM_NV) {
		744	_mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameter4dNV");
		745	return;
		746	}
		747
		748	if (index >= VP_NUM_PROG_REGS) {
		749	_mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameter4dNV");
		750	return;
		751	}
		752
		753	index += VP_PROG_REG_START;
		754	ASSIGN_4V(ctx->VertexProgram.Machine.Registers[index],
		755	(GLfloat)x, (GLfloat)y, (GLfloat)z, (GLfloat)w);
		756	}
		757
		758
		759	/**
		760	* Set a program parameter register.
		761	* \note Called from the GL API dispatcher.
		762	*/
		763	void _mesa_ProgramParameter4dvNV(GLenum target, GLuint index,
		764	const GLdouble *params)
		765	{
		766	GET_CURRENT_CONTEXT(ctx);
		767	ASSERT_OUTSIDE_BEGIN_END(ctx);
		768
		769	if (target != GL_VERTEX_PROGRAM_NV) {
		770	_mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameter4dvNV");
		771	return;
		772	}
		773
		774	if (index >= VP_NUM_PROG_REGS) {
		775	_mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameter4dvNV");
		776	return;
		777	}
		778
		779	index += VP_PROG_REG_START;
		780	COPY_4V_CAST(ctx->VertexProgram.Machine.Registers[index], params, GLfloat);
		781	}
		782
		783
		784	/**
		785	* Set a program parameter register.
		786	* \note Called from the GL API dispatcher.
		787	*/
		788	void _mesa_ProgramParameter4fNV(GLenum target, GLuint index,
		789	GLfloat x, GLfloat y, GLfloat z, GLfloat w)
		790	{
		791	GET_CURRENT_CONTEXT(ctx);
		792	ASSERT_OUTSIDE_BEGIN_END(ctx);
		793
		794	if (target != GL_VERTEX_PROGRAM_NV) {
		795	_mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameter4fNV");
		796	return;
		797	}
		798
		799	if (index >= VP_NUM_PROG_REGS) {
		800	_mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameter4fNV");
		801	return;
		802	}
		803
		804	index += VP_PROG_REG_START;
		805	ASSIGN_4V(ctx->VertexProgram.Machine.Registers[index], x, y, z, w);
		806	}
		807
		808
		809	/**
		810	* Set a program parameter register.
		811	* \note Called from the GL API dispatcher.
		812	*/
		813	void _mesa_ProgramParameter4fvNV(GLenum target, GLuint index,
		814	const GLfloat *params)
		815	{
		816	GET_CURRENT_CONTEXT(ctx);
		817	ASSERT_OUTSIDE_BEGIN_END(ctx);
		818
		819	if (target != GL_VERTEX_PROGRAM_NV) {
		820	_mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameter4fNV");
		821	return;
		822	}
		823
		824	if (index >= VP_NUM_PROG_REGS) {
		825	_mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameter4fNV");
		826	return;
		827	}
		828
		829	index += VP_PROG_REG_START;
		830	COPY_4V(ctx->VertexProgram.Machine.Registers[index], params);
		831	}
		832
		833
		834	/**
		835	* Set a sequence of program parameter registers.
		836	* \note Called from the GL API dispatcher.
		837	*/
		838	void _mesa_ProgramParameters4dvNV(GLenum target, GLuint index,
		839	GLuint num, const GLdouble *params)
		840	{
		841	GLuint i;
		842	GET_CURRENT_CONTEXT(ctx);
		843	ASSERT_OUTSIDE_BEGIN_END(ctx);
		844
		845	if (target != GL_VERTEX_PROGRAM_NV) {
		846	_mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameters4dvNV");
		847	return;
		848	}
		849
		850	if (index + num > VP_NUM_PROG_REGS) {
		851	_mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameters4dvNV");
		852	return;
		853	}
		854
		855	index += VP_PROG_REG_START;
		856	for (i = 0; i < num; i++) {
		857	COPY_4V_CAST(ctx->VertexProgram.Machine.Registers[index + i],
		858	params, GLfloat);
		859	params += 4;
		860	};
		861	}
		862
		863
		864	/**
		865	* Set a sequence of program parameter registers.
		866	* \note Called from the GL API dispatcher.
		867	*/
		868	void _mesa_ProgramParameters4fvNV(GLenum target, GLuint index,
		869	GLuint num, const GLfloat *params)
		870	{
		871	GLuint i;
		872	GET_CURRENT_CONTEXT(ctx);
		873	ASSERT_OUTSIDE_BEGIN_END(ctx);
		874
		875	if (target != GL_VERTEX_PROGRAM_NV) {
		876	_mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameters4fvNV");
		877	return;
		878	}
		879
		880	if (index + num > VP_NUM_PROG_REGS) {
		881	_mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameters4fvNV");
		882	return;
		883	}
		884
		885	index += VP_PROG_REG_START;
		886	for (i = 0; i < num; i++) {
		887	COPY_4V(ctx->VertexProgram.Machine.Registers[index + i], params);
		888	params += 4;
		889	};
		890	}
		891
		892
		893	/**
		894	* Setup tracking of matrices into program parameter registers.
		895	* \note Called from the GL API dispatcher.
		896	*/
		897	void _mesa_TrackMatrixNV(GLenum target, GLuint address,
		898	GLenum matrix, GLenum transform)
		899	{
		900	GET_CURRENT_CONTEXT(ctx);
		901	ASSERT_OUTSIDE_BEGIN_END(ctx);
		902
		903	if (target != GL_VERTEX_PROGRAM_NV) {
		904	_mesa_error(ctx, GL_INVALID_ENUM, "glTrackMatrixNV(target)");
		905	return;
		906	}
		907
		908	if (address & 0x3) {
		909	/* addr must be multiple of four */
		910	_mesa_error(ctx, GL_INVALID_VALUE, "glTrackMatrixNV(address)");
		911	return;
		912	}
		913
		914	switch (matrix) {
		915	case GL_NONE:
		916	case GL_MODELVIEW:
		917	case GL_PROJECTION:
		918	case GL_TEXTURE:
		919	case GL_COLOR:
		920	case GL_MODELVIEW_PROJECTION_NV:
		921	case GL_MATRIX0_NV:
		922	case GL_MATRIX1_NV:
		923	case GL_MATRIX2_NV:
		924	case GL_MATRIX3_NV:
		925	case GL_MATRIX4_NV:
		926	case GL_MATRIX5_NV:
		927	case GL_MATRIX6_NV:
		928	case GL_MATRIX7_NV:
		929	/* OK, fallthrough */
		930	break;
		931	default:
		932	_mesa_error(ctx, GL_INVALID_ENUM, "glTrackMatrixNV(matrix)");
		933	return;
		934	}
		935
		936	switch (transform) {
		937	case GL_IDENTITY_NV:
		938	case GL_INVERSE_NV:
		939	case GL_TRANSPOSE_NV:
		940	case GL_INVERSE_TRANSPOSE_NV:
		941	/* OK, fallthrough */
		942	break;
		943	default:
		944	_mesa_error(ctx, GL_INVALID_ENUM, "glTrackMatrixNV(transform)");
		945	return;
		946	}
		947
		948	ctx->VertexProgram.TrackMatrix[address / 4] = matrix;
		949	ctx->VertexProgram.TrackMatrixTransform[address / 4] = transform;
		950	}

Subversion Repositories shark

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