vbo_exec.h revision 4a49301e 
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 "main/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*64)	/* bytes */
47#define VBO_MAX_ATTR_CODEGEN 16
48#define ERROR_ATTRIB 16
49
50
51/** Current vertex program mode */
52enum vp_mode {
53   VP_NONE,   /**< fixed function */
54   VP_NV,     /**< NV vertex program */
55   VP_ARB     /**< ARB vertex program or GLSL vertex shader */
56};
57
58
59struct vbo_exec_eval1_map {
60   struct gl_1d_map *map;
61   GLuint sz;
62};
63
64struct vbo_exec_eval2_map {
65   struct gl_2d_map *map;
66   GLuint sz;
67};
68
69
70
71struct vbo_exec_copied_vtx {
72   GLfloat buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS];
73   GLuint nr;
74};
75
76
77typedef void (*vbo_attrfv_func)( const GLfloat * );
78
79
80struct vbo_exec_context
81{
82   GLcontext *ctx;
83   GLvertexformat vtxfmt;
84
85   struct {
86      struct gl_buffer_object *bufferobj;
87
88      GLuint vertex_size;       /* in dwords */
89
90      struct _mesa_prim prim[VBO_MAX_PRIM];
91      GLuint prim_count;
92
93      GLfloat *buffer_map;
94      GLfloat *buffer_ptr;              /* cursor, points into buffer */
95      GLuint   buffer_used;             /* in bytes */
96      GLfloat vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
97
98      GLuint vert_count;
99      GLuint max_vert;
100      struct vbo_exec_copied_vtx copied;
101
102      GLubyte attrsz[VBO_ATTRIB_MAX];
103      GLubyte active_sz[VBO_ATTRIB_MAX];
104
105      GLfloat *attrptr[VBO_ATTRIB_MAX];
106      struct gl_client_array arrays[VERT_ATTRIB_MAX];
107
108      /* According to program mode, the values above plus current
109       * values are squashed down to the 32 attributes passed to the
110       * vertex program below:
111       */
112      enum vp_mode program_mode;
113      GLuint enabled_flags;
114      const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
115   } vtx;
116
117
118   struct {
119      GLboolean recalculate_maps;
120      struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX];
121      struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX];
122   } eval;
123
124   struct {
125      enum vp_mode program_mode;
126      GLuint enabled_flags;
127      GLuint array_obj;
128
129      /* These just mirror the current arrayobj (todo: make arrayobj
130       * look like this and remove the mirror):
131       */
132      const struct gl_client_array *legacy_array[16];
133      const struct gl_client_array *generic_array[16];
134
135      /* Arrays and current values manipulated according to program
136       * mode, etc.  These are the attributes as seen by vertex
137       * programs:
138       */
139      const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
140   } array;
141
142#ifdef DEBUG
143   GLint flush_call_depth;
144#endif
145};
146
147
148
149/* External API:
150 */
151void vbo_exec_init( GLcontext *ctx );
152void vbo_exec_destroy( GLcontext *ctx );
153void vbo_exec_invalidate_state( GLcontext *ctx, GLuint new_state );
154void vbo_exec_FlushVertices_internal( GLcontext *ctx, GLboolean unmap );
155
156void vbo_exec_BeginVertices( GLcontext *ctx );
157void vbo_exec_FlushVertices( GLcontext *ctx, GLuint flags );
158
159
160/* Internal functions:
161 */
162void vbo_exec_array_init( struct vbo_exec_context *exec );
163void vbo_exec_array_destroy( struct vbo_exec_context *exec );
164
165
166void vbo_exec_vtx_init( struct vbo_exec_context *exec );
167void vbo_exec_vtx_destroy( struct vbo_exec_context *exec );
168
169#if FEATURE_beginend
170
171void vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap );
172void vbo_exec_vtx_map( struct vbo_exec_context *exec );
173
174#else /* FEATURE_beginend */
175
176static INLINE void
177vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap )
178{
179}
180
181static INLINE void
182vbo_exec_vtx_map( struct vbo_exec_context *exec )
183{
184}
185
186#endif /* FEATURE_beginend */
187
188void vbo_exec_vtx_wrap( struct vbo_exec_context *exec );
189
190void vbo_exec_eval_update( struct vbo_exec_context *exec );
191
192void vbo_exec_do_EvalCoord2f( struct vbo_exec_context *exec,
193				     GLfloat u, GLfloat v );
194
195void vbo_exec_do_EvalCoord1f( struct vbo_exec_context *exec,
196				     GLfloat u);
197
198extern GLboolean
199vbo_validate_shaders(GLcontext *ctx);
200
201#endif
202