vbo_exec.h revision b8e80941 
1/**************************************************************************
2
3Copyright 2002 VMware, Inc.
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
21VMWARE 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 <keithw@vmware.com>
31 *
32 */
33
34#ifndef VBO_EXEC_H
35#define VBO_EXEC_H
36
37#include "main/dd.h"
38#include "main/imports.h"
39#include "vbo.h"
40#include "vbo_attrib.h"
41
42
43/**
44 * Max number of primitives (number of glBegin/End pairs) per VBO.
45 */
46#define VBO_MAX_PRIM 64
47
48
49/**
50 * Size (in bytes) of the VBO to use for glBegin/glVertex/glEnd-style rendering.
51 */
52#define VBO_VERT_BUFFER_SIZE (1024 * 64)
53
54
55struct vbo_exec_eval1_map {
56   struct gl_1d_map *map;
57   GLuint sz;
58};
59
60struct vbo_exec_eval2_map {
61   struct gl_2d_map *map;
62   GLuint sz;
63};
64
65
66
67struct vbo_exec_copied_vtx {
68   fi_type buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS];
69   GLuint nr;
70};
71
72
73struct vbo_exec_context
74{
75   struct gl_context *ctx;
76   GLvertexformat vtxfmt;
77   GLvertexformat vtxfmt_noop;
78
79   struct {
80      struct gl_buffer_object *bufferobj;
81
82      GLuint vertex_size;       /* in dwords */
83
84      struct _mesa_prim prim[VBO_MAX_PRIM];
85      GLuint prim_count;
86
87      fi_type *buffer_map;
88      fi_type *buffer_ptr;              /* cursor, points into buffer */
89      GLuint   buffer_used;             /* in bytes */
90      fi_type vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
91
92      GLuint vert_count;   /**< Number of vertices currently in buffer */
93      GLuint max_vert;     /**< Max number of vertices allowed in buffer */
94      struct vbo_exec_copied_vtx copied;
95
96      GLbitfield64 enabled;             /**< mask of enabled vbo arrays. */
97      GLubyte attrsz[VBO_ATTRIB_MAX];   /**< nr. of attrib components (1..4) */
98      GLenum16 attrtype[VBO_ATTRIB_MAX];  /**< GL_FLOAT, GL_DOUBLE, GL_INT, etc */
99      GLubyte active_sz[VBO_ATTRIB_MAX];  /**< attrib size (nr. 32-bit words) */
100
101      /** pointers into the current 'vertex' array, declared above */
102      fi_type *attrptr[VBO_ATTRIB_MAX];
103   } vtx;
104
105   struct {
106      GLboolean recalculate_maps;
107      struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX];
108      struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX];
109   } eval;
110
111   /* Which flags to set in vbo_exec_begin_vertices() */
112   GLbitfield begin_vertices_flags;
113
114#ifdef DEBUG
115   GLint flush_call_depth;
116#endif
117};
118
119
120
121void
122vbo_exec_init(struct gl_context *ctx);
123
124void
125vbo_exec_destroy(struct gl_context *ctx);
126
127void
128vbo_exec_vtx_init(struct vbo_exec_context *exec);
129
130void
131vbo_exec_vtx_destroy(struct vbo_exec_context *exec);
132
133void
134vbo_exec_vtx_flush(struct vbo_exec_context *exec, GLboolean unmap);
135
136void
137vbo_exec_vtx_map(struct vbo_exec_context *exec);
138
139void
140vbo_exec_eval_update(struct vbo_exec_context *exec);
141
142void
143vbo_exec_do_EvalCoord2f(struct vbo_exec_context *exec, GLfloat u, GLfloat v);
144
145void
146vbo_exec_do_EvalCoord1f(struct vbo_exec_context *exec, GLfloat u);
147
148#endif
149