summaryrefslogtreecommitdiff
path: root/src/mesa/state_tracker/st_program.h
blob: e58b8a185159afc969661e833dd772fa6730f3a1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
/**************************************************************************
 * 
 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 **************************************************************************/

 /*
  * Authors:
  *   Keith Whitwell <keith@tungstengraphics.com>
  */
    

#ifndef ST_PROGRAM_H
#define ST_PROGRAM_H

#include "mtypes.h"
#include "pipe/p_shader_tokens.h"


#define ST_MAX_SHADER_TOKENS 1024


struct cso_fragment_shader;
struct cso_vertex_shader;
struct translated_vertex_program;


/**
 * Derived from Mesa gl_fragment_program:
 */
struct st_fragment_program
{
   struct gl_fragment_program Base;
   GLuint serialNo;

   GLuint input_to_slot[FRAG_ATTRIB_MAX];  /**< Maps FRAG_ATTRIB_x to slot */
   GLuint num_input_slots;

   /** map FP input back to VP output */
   GLuint input_map[PIPE_MAX_SHADER_INPUTS];

   struct pipe_shader_state state;
   void *driver_shader;

   GLuint param_state;

   /** List of vertex programs which have been translated such that their
    * outputs match this fragment program's inputs.
    */
   struct translated_vertex_program *vertex_programs;
};


/**
 * Derived from Mesa gl_fragment_program:
 */
struct st_vertex_program
{
   struct gl_vertex_program Base;  /**< The Mesa vertex program */
   GLuint serialNo;

   /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
   GLuint input_to_index[VERT_ATTRIB_MAX];
   /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
   GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];

   GLuint num_inputs;

   struct pipe_shader_state state;
   void *driver_shader;

   /** For using our private draw module (glRasterPos) */
   struct draw_vertex_shader *draw_shader;

   GLuint param_state;
};


static inline struct st_fragment_program *
st_fragment_program( struct gl_fragment_program *fp )
{
   return (struct st_fragment_program *)fp;
}


static inline struct st_vertex_program *
st_vertex_program( struct gl_vertex_program *vp )
{
   return (struct st_vertex_program *)vp;
}


extern void
st_translate_fragment_program(struct st_context *st,
                              struct st_fragment_program *fp,
                              const GLuint inputMapping[]);


extern void
st_translate_vertex_program(struct st_context *st,
                            struct st_vertex_program *vp,
                            const GLuint vert_output_to_slot[]);

#endif