vbo.h revision 3464ebd5 
1/*
2 * mesa 3-D graphics library
3 * Version:  6.5
4 *
5 * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
6 *
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:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
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.
23 */
24
25/**
26 * \file vbo_context.h
27 * \brief VBO builder module datatypes and definitions.
28 * \author Keith Whitwell
29 */
30
31
32#ifndef _VBO_H
33#define _VBO_H
34
35#include "main/glheader.h"
36
37struct gl_client_array;
38struct gl_context;
39
40struct _mesa_prim {
41   GLuint mode:8;    /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */
42   GLuint indexed:1;
43   GLuint begin:1;
44   GLuint end:1;
45   GLuint weak:1;
46   GLuint no_current_update:1;
47   GLuint pad:19;
48
49   GLuint start;
50   GLuint count;
51   GLint basevertex;
52   GLsizei num_instances;
53};
54
55/* Would like to call this a "vbo_index_buffer", but this would be
56 * confusing as the indices are not neccessarily yet in a non-null
57 * buffer object.
58 */
59struct _mesa_index_buffer {
60   GLuint count;
61   GLenum type;
62   struct gl_buffer_object *obj;
63   const void *ptr;
64};
65
66
67
68GLboolean _vbo_CreateContext( struct gl_context *ctx );
69void _vbo_DestroyContext( struct gl_context *ctx );
70void _vbo_InvalidateState( struct gl_context *ctx, GLuint new_state );
71
72
73typedef void (*vbo_draw_func)( struct gl_context *ctx,
74			       const struct gl_client_array **arrays,
75			       const struct _mesa_prim *prims,
76			       GLuint nr_prims,
77			       const struct _mesa_index_buffer *ib,
78			       GLboolean index_bounds_valid,
79			       GLuint min_index,
80			       GLuint max_index );
81
82
83
84
85/* Utility function to cope with various constraints on tnl modules or
86 * hardware.  This can be used to split an incoming set of arrays and
87 * primitives against the following constraints:
88 *    - Maximum number of indices in index buffer.
89 *    - Maximum number of vertices referenced by index buffer.
90 *    - Maximum hardware vertex buffer size.
91 */
92struct split_limits {
93   GLuint max_verts;
94   GLuint max_indices;
95   GLuint max_vb_size;		/* bytes */
96};
97
98
99void vbo_split_prims( struct gl_context *ctx,
100		      const struct gl_client_array *arrays[],
101		      const struct _mesa_prim *prim,
102		      GLuint nr_prims,
103		      const struct _mesa_index_buffer *ib,
104		      GLuint min_index,
105		      GLuint max_index,
106		      vbo_draw_func draw,
107		      const struct split_limits *limits );
108
109
110/* Helpers for dealing translating away non-zero min_index.
111 */
112GLboolean vbo_all_varyings_in_vbos( const struct gl_client_array *arrays[] );
113GLboolean vbo_any_varyings_in_vbos( const struct gl_client_array *arrays[] );
114
115void vbo_rebase_prims( struct gl_context *ctx,
116		       const struct gl_client_array *arrays[],
117		       const struct _mesa_prim *prim,
118		       GLuint nr_prims,
119		       const struct _mesa_index_buffer *ib,
120		       GLuint min_index,
121		       GLuint max_index,
122		       vbo_draw_func draw );
123void
124vbo_get_minmax_index(struct gl_context *ctx, const struct _mesa_prim *prim,
125		     const struct _mesa_index_buffer *ib,
126		     GLuint *min_index, GLuint *max_index);
127
128void vbo_use_buffer_objects(struct gl_context *ctx);
129
130void vbo_always_unmap_buffers(struct gl_context *ctx);
131
132void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func);
133
134void vbo_check_buffers_are_unmapped(struct gl_context *ctx);
135
136
137void GLAPIENTRY
138_es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
139
140void GLAPIENTRY
141_es_Normal3f(GLfloat x, GLfloat y, GLfloat z);
142
143void GLAPIENTRY
144_es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
145
146void GLAPIENTRY
147_es_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
148
149void GLAPIENTRY
150_es_Materialf(GLenum face, GLenum pname, GLfloat param);
151
152void GLAPIENTRY
153_es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
154
155void GLAPIENTRY
156_es_VertexAttrib1f(GLuint indx, GLfloat x);
157
158void GLAPIENTRY
159_es_VertexAttrib1fv(GLuint indx, const GLfloat* values);
160
161void GLAPIENTRY
162_es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y);
163
164void GLAPIENTRY
165_es_VertexAttrib2fv(GLuint indx, const GLfloat* values);
166
167void GLAPIENTRY
168_es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z);
169
170void GLAPIENTRY
171_es_VertexAttrib3fv(GLuint indx, const GLfloat* values);
172
173void GLAPIENTRY
174_es_VertexAttrib4fv(GLuint indx, const GLfloat* values);
175
176#endif
177