src/mesa/vbo/vbo.h

   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/mtypes.h"
  36
  37 struct _mesa_prim {
  38    GLuint mode:8;
  39    GLuint indexed:1;
  40    GLuint begin:1;
  41    GLuint end:1;
  42    GLuint weak:1;
  43    GLuint pad:20;
  44
  45    GLuint start;
  46    GLuint count;
  47 };
  48
  49 /* Would like to call this a "vbo_index_buffer", but this would be
  50  * confusing as the indices are not neccessarily yet in a non-null
  51  * buffer object.
  52  */
  53 struct _mesa_index_buffer {
  54    GLuint count;
  55    GLenum type;
  56    struct gl_buffer_object *obj;
  57    const void *ptr;
  58 };
  59
  60
  61
  62 GLboolean _vbo_CreateContext( GLcontext *ctx );
  63 void _vbo_DestroyContext( GLcontext *ctx );
  64 void _vbo_InvalidateState( GLcontext *ctx, GLuint new_state );
  65
  66
  67 typedef void (*vbo_draw_func)( GLcontext *ctx,
  68                                const struct gl_client_array **arrays,
  69                                const struct _mesa_prim *prims,
  70                                GLuint nr_prims,
  71                                const struct _mesa_index_buffer *ib,
  72                                GLuint min_index,
  73                                GLuint max_index );
  74
  75
  76
  77
  78 /* Utility function to cope with various constraints on tnl modules or
  79  * hardware.  This can be used to split an incoming set of arrays and
  80  * primitives against the following constraints:
  81  *    - Maximum number of indices in index buffer.
  82  *    - Maximum number of vertices referenced by index buffer.
  83  *    - Maximum hardware vertex buffer size.
  84  */
  85 struct split_limits {
  86    GLuint max_verts;
  87    GLuint max_indices;
  88    GLuint max_vb_size;          /* bytes */
  89 };
  90
  91
  92 void vbo_split_prims( GLcontext *ctx,
  93                       const struct gl_client_array *arrays[],
  94                       const struct _mesa_prim *prim,
  95                       GLuint nr_prims,
  96                       const struct _mesa_index_buffer *ib,
  97                       GLuint min_index,
  98                       GLuint max_index,
  99                       vbo_draw_func draw,
 100                       const struct split_limits *limits );
 101
 102
 103 /* Helpers for dealing translating away non-zero min_index.
 104  */
 105 GLboolean vbo_all_varyings_in_vbos( const struct gl_client_array *arrays[] );
 106
 107 void vbo_rebase_prims( GLcontext *ctx,
 108                        const struct gl_client_array *arrays[],
 109                        const struct _mesa_prim *prim,
 110                        GLuint nr_prims,
 111                        const struct _mesa_index_buffer *ib,
 112                        GLuint min_index,
 113                        GLuint max_index,
 114                        vbo_draw_func draw );
 115
 116
 117 void vbo_use_buffer_objects(GLcontext *ctx);
 118
 119
 120 void vbo_set_draw_func(GLcontext *ctx, vbo_draw_func func);
 121
 122
 123 void GLAPIENTRY
 124 _vbo_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
 125
 126 void GLAPIENTRY
 127 _vbo_Normal3f(GLfloat x, GLfloat y, GLfloat z);
 128
 129 void GLAPIENTRY
 130 _vbo_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
 131
 132 void GLAPIENTRY
 133 _vbo_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
 134
 135 void GLAPIENTRY
 136 _vbo_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
 137
 138 #endif