vbo_exec.h revision 7117f1b4 
1/**************************************************************************
2
3Copyright 2002 Tungsten Graphics Inc., Cedar Park, Texas.
4
5All Rights Reserved.
6
7Permission is hereby granted, free of charge, to any person obtaining a
8copy of this software and associated documentation files (the "Software"),
9to deal in the Software without restriction, including without limitation
10on the rights to use, copy, modify, merge, publish, distribute, sub
11license, and/or sell copies of the Software, and to permit persons to whom
12the Software is furnished to do so, subject to the following conditions:
13
14The above copyright notice and this permission notice (including the next
15paragraph) shall be included in all copies or substantial portions of the
16Software.
17
18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
22DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24USE OR OTHER DEALINGS IN THE SOFTWARE.
25
26**************************************************************************/
27
28/*
29 * Authors:
30 *   Keith Whitwell <keith@tungstengraphics.com>
31 *
32 */
33
34#ifndef __VBO_EXEC_H__
35#define __VBO_EXEC_H__
36
37#include "mtypes.h"
38#include "vbo.h"
39#include "vbo_attrib.h"
40
41
42#define VBO_MAX_PRIM 64
43
44/* Wierd implementation stuff:
45 */
46#define VBO_VERT_BUFFER_SIZE (1024*16)	/* dwords == 64k */
47#define VBO_MAX_ATTR_CODEGEN 16
48#define ERROR_ATTRIB 16
49
50
51
52
53struct vbo_exec_eval1_map {
54   struct gl_1d_map *map;
55   GLuint sz;
56};
57
58struct vbo_exec_eval2_map {
59   struct gl_2d_map *map;
60   GLuint sz;
61};
62
63
64
65struct vbo_exec_copied_vtx {
66   GLfloat buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS];
67   GLuint nr;
68};
69
70
71typedef void (*vbo_attrfv_func)( const GLfloat * );
72
73
74struct vbo_exec_context
75{
76   GLcontext *ctx;
77   GLvertexformat vtxfmt;
78
79   struct {
80      struct gl_buffer_object *bufferobj;
81      GLubyte *buffer_map;
82
83      GLuint vertex_size;
84
85      struct _mesa_prim prim[VBO_MAX_PRIM];
86      GLuint prim_count;
87
88      GLfloat *vbptr;		     /* cursor, points into buffer */
89      GLfloat vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
90
91      GLuint vert_count;
92      GLuint max_vert;
93      struct vbo_exec_copied_vtx copied;
94
95      GLubyte attrsz[VBO_ATTRIB_MAX];
96      GLubyte active_sz[VBO_ATTRIB_MAX];
97
98      GLfloat *attrptr[VBO_ATTRIB_MAX];
99      struct gl_client_array arrays[VBO_ATTRIB_MAX];
100
101      /* According to program mode, the values above plus current
102       * values are squashed down to the 32 attributes passed to the
103       * vertex program below:
104       */
105      GLuint program_mode;
106      GLuint enabled_flags;
107      const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
108   } vtx;
109
110
111   struct {
112      GLboolean recalculate_maps;
113      struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX];
114      struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX];
115   } eval;
116
117   struct {
118      GLuint program_mode;
119      GLuint enabled_flags;
120      GLuint array_obj;
121
122      /* These just mirror the current arrayobj (todo: make arrayobj
123       * look like this and remove the mirror):
124       */
125      const struct gl_client_array *legacy_array[16];
126      const struct gl_client_array *generic_array[16];
127
128      /* Arrays and current values manipulated according to program
129       * mode, etc.  These are the attributes as seen by vertex
130       * programs:
131       */
132      const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
133   } array;
134};
135
136
137
138/* External API:
139 */
140void vbo_exec_init( GLcontext *ctx );
141void vbo_exec_destroy( GLcontext *ctx );
142void vbo_exec_invalidate_state( GLcontext *ctx, GLuint new_state );
143void vbo_exec_FlushVertices( GLcontext *ctx, GLuint flags );
144
145
146/* Internal functions:
147 */
148void vbo_exec_array_init( struct vbo_exec_context *exec );
149void vbo_exec_array_destroy( struct vbo_exec_context *exec );
150
151
152void vbo_exec_vtx_init( struct vbo_exec_context *exec );
153void vbo_exec_vtx_destroy( struct vbo_exec_context *exec );
154void vbo_exec_vtx_flush( struct vbo_exec_context *exec );
155void vbo_exec_vtx_wrap( struct vbo_exec_context *exec );
156
157void vbo_exec_eval_update( struct vbo_exec_context *exec );
158
159void vbo_exec_do_EvalCoord2f( struct vbo_exec_context *exec,
160				     GLfloat u, GLfloat v );
161
162void vbo_exec_do_EvalCoord1f( struct vbo_exec_context *exec,
163				     GLfloat u);
164
165extern GLboolean
166vbo_validate_shaders(GLcontext *ctx);
167
168#endif
169