2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 * \file t_arb_program.c
27 * Compile vertex programs to an intermediate representation.
28 * Execute vertex programs over a buffer of vertices.
29 * \author Keith Whitwell, Brian Paul
33 #ifndef _T_VB_ARBPROGRAM_H_
34 #define _T_VB_ARBPROGRAM_H_
37 /* New, internal instructions:
39 #define RSW (VP_MAX_OPCODE)
40 #define MSK (VP_MAX_OPCODE+1)
41 #define REL (VP_MAX_OPCODE+2)
44 #define FILE_LOCAL_PARAM 1
45 #define FILE_ENV_PARAM 2
46 #define FILE_STATE_PARAM 3
59 #define REG_ID 64 /* 0,0,0,1 */
60 #define REG_ONES 65 /* 1,1,1,1 */
61 #define REG_SWZ 66 /* -1,1,0,0 */
62 #define REG_NEG 67 /* -1,-1,-1,-1 */
63 #define REG_UNDEF 127 /* special case - never used */
65 #define REG_INVALID ~0
67 /* ARB_vp instructions are broken down into one or more of the
68 * following micro-instructions, each representable in a 32 bit packed
94 GLuint swz
:8; /* xyzw only */
109 #define RSW_NOOP ((0<<0) | (1<<2) | (2<<4) | (3<<6))
110 #define GET_RSW(swz, idx) (((swz) >> ((idx)*2)) & 0x3)
127 /*--------------------------------------------------------------------------- */
130 * Private storage for the vertex program pipeline stage.
132 struct arb_vp_machine
{
133 GLfloat (*File
[4])[4]; /* All values referencable from the program. */
135 struct input input
[_TNL_ATTRIB_MAX
];
138 struct output output
[15];
141 GLvector4f attribs
[VERT_RESULT_MAX
]; /**< result vectors. */
142 GLvector4f ndcCoords
; /**< normalized device coords */
143 GLubyte
*clipmask
; /**< clip flags */
144 GLubyte ormask
, andmask
; /**< for clipping */
146 GLuint vtx_nr
; /**< loop counter */
148 struct vertex_buffer
*VB
;
151 GLboolean try_codegen
;
154 struct tnl_compiled_program
{
155 union instruction instructions
[1024];
156 GLint nr_instructions
;
157 void (*compiled_func
)( struct arb_vp_machine
* ); /**< codegen'd program */
160 void _tnl_program_string_change( struct vertex_program
* );
161 void _tnl_program_destroy( struct vertex_program
* );
163 void _tnl_disassem_vba_insn( union instruction op
);
165 GLboolean
_tnl_sse_codegen_vertex_program(struct tnl_compiled_program
*p
);