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
37 struct gl_client_array;
38 struct gl_context;
39 struct gl_transform_feedback_object;
40
41 struct _mesa_prim {
42 GLuint mode:8; /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */
43 GLuint indexed:1;
44 GLuint begin:1;
45 GLuint end:1;
46 GLuint weak:1;
47 GLuint no_current_update:1;
48 GLuint pad:19;
49
50 GLuint start;
51 GLuint count;
52 GLint basevertex;
53 GLsizei num_instances;
54 GLuint base_instance;
55 };
56
57 /* Would like to call this a "vbo_index_buffer", but this would be
58 * confusing as the indices are not neccessarily yet in a non-null
59 * buffer object.
60 */
61 struct _mesa_index_buffer {
62 GLuint count;
63 GLenum type;
64 struct gl_buffer_object *obj;
65 const void *ptr;
66 };
67
68
69
70 GLboolean _vbo_CreateContext( struct gl_context *ctx );
71 void _vbo_DestroyContext( struct gl_context *ctx );
72 void _vbo_InvalidateState( struct gl_context *ctx, GLuint new_state );
73
74
75 typedef void (*vbo_draw_func)( struct gl_context *ctx,
76 const struct _mesa_prim *prims,
77 GLuint nr_prims,
78 const struct _mesa_index_buffer *ib,
79 GLboolean index_bounds_valid,
80 GLuint min_index,
81 GLuint max_index,
82 struct gl_transform_feedback_object *tfb_vertcount );
83
84
85
86
87 /* Utility function to cope with various constraints on tnl modules or
88 * hardware. This can be used to split an incoming set of arrays and
89 * primitives against the following constraints:
90 * - Maximum number of indices in index buffer.
91 * - Maximum number of vertices referenced by index buffer.
92 * - Maximum hardware vertex buffer size.
93 */
94 struct split_limits {
95 GLuint max_verts;
96 GLuint max_indices;
97 GLuint max_vb_size; /* bytes */
98 };
99
100
101 void vbo_split_prims( struct gl_context *ctx,
102 const struct gl_client_array *arrays[],
103 const struct _mesa_prim *prim,
104 GLuint nr_prims,
105 const struct _mesa_index_buffer *ib,
106 GLuint min_index,
107 GLuint max_index,
108 vbo_draw_func draw,
109 const struct split_limits *limits );
110
111
112 /* Helpers for dealing translating away non-zero min_index.
113 */
114 GLboolean vbo_all_varyings_in_vbos( const struct gl_client_array *arrays[] );
115 GLboolean vbo_any_varyings_in_vbos( const struct gl_client_array *arrays[] );
116
117 void vbo_rebase_prims( struct gl_context *ctx,
118 const struct gl_client_array *arrays[],
119 const struct _mesa_prim *prim,
120 GLuint nr_prims,
121 const struct _mesa_index_buffer *ib,
122 GLuint min_index,
123 GLuint max_index,
124 vbo_draw_func draw );
125
126 static inline int
vbo_sizeof_ib_type(GLenum type)127 vbo_sizeof_ib_type(GLenum type)
128 {
129 switch (type) {
130 case GL_UNSIGNED_INT:
131 return sizeof(GLuint);
132 case GL_UNSIGNED_SHORT:
133 return sizeof(GLushort);
134 case GL_UNSIGNED_BYTE:
135 return sizeof(GLubyte);
136 default:
137 assert(!"unsupported index data type");
138 /* In case assert is turned off */
139 return 0;
140 }
141 }
142
143 void
144 vbo_get_minmax_indices(struct gl_context *ctx, const struct _mesa_prim *prim,
145 const struct _mesa_index_buffer *ib,
146 GLuint *min_index, GLuint *max_index, GLuint nr_prims);
147
148 void vbo_use_buffer_objects(struct gl_context *ctx);
149
150 void vbo_always_unmap_buffers(struct gl_context *ctx);
151
152 void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func);
153
154 void vbo_check_buffers_are_unmapped(struct gl_context *ctx);
155
156 void vbo_bind_arrays(struct gl_context *ctx);
157
158 size_t
159 count_tessellated_primitives(const struct _mesa_prim *prim);
160
161 void
162 vbo_sw_primitive_restart(struct gl_context *ctx,
163 const struct _mesa_prim *prim,
164 GLuint nr_prims,
165 const struct _mesa_index_buffer *ib);
166
167 void GLAPIENTRY
168 _es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
169
170 void GLAPIENTRY
171 _es_Normal3f(GLfloat x, GLfloat y, GLfloat z);
172
173 void GLAPIENTRY
174 _es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
175
176 void GLAPIENTRY
177 _es_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
178
179 void GLAPIENTRY
180 _es_Materialf(GLenum face, GLenum pname, GLfloat param);
181
182 void GLAPIENTRY
183 _es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
184
185 void GLAPIENTRY
186 _es_VertexAttrib1f(GLuint indx, GLfloat x);
187
188 void GLAPIENTRY
189 _es_VertexAttrib1fv(GLuint indx, const GLfloat* values);
190
191 void GLAPIENTRY
192 _es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y);
193
194 void GLAPIENTRY
195 _es_VertexAttrib2fv(GLuint indx, const GLfloat* values);
196
197 void GLAPIENTRY
198 _es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z);
199
200 void GLAPIENTRY
201 _es_VertexAttrib3fv(GLuint indx, const GLfloat* values);
202
203 void GLAPIENTRY
204 _es_VertexAttrib4fv(GLuint indx, const GLfloat* values);
205
206 #endif
207