vbo.h revision 2708ddfb06a36d8568e2aa130bf1f7d551fcd309
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 37struct _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 */ 53struct _mesa_index_buffer { 54 GLuint count; 55 GLenum type; 56 struct gl_buffer_object *obj; 57 const void *ptr; 58}; 59 60 61 62GLboolean _vbo_CreateContext( GLcontext *ctx ); 63void _vbo_DestroyContext( GLcontext *ctx ); 64void _vbo_InvalidateState( GLcontext *ctx, GLuint new_state ); 65 66 67typedef 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 GLboolean index_bounds_valid, 73 GLuint min_index, 74 GLuint max_index ); 75 76 77 78 79/* Utility function to cope with various constraints on tnl modules or 80 * hardware. This can be used to split an incoming set of arrays and 81 * primitives against the following constraints: 82 * - Maximum number of indices in index buffer. 83 * - Maximum number of vertices referenced by index buffer. 84 * - Maximum hardware vertex buffer size. 85 */ 86struct split_limits { 87 GLuint max_verts; 88 GLuint max_indices; 89 GLuint max_vb_size; /* bytes */ 90}; 91 92 93void vbo_split_prims( GLcontext *ctx, 94 const struct gl_client_array *arrays[], 95 const struct _mesa_prim *prim, 96 GLuint nr_prims, 97 const struct _mesa_index_buffer *ib, 98 GLuint min_index, 99 GLuint max_index, 100 vbo_draw_func draw, 101 const struct split_limits *limits ); 102 103 104/* Helpers for dealing translating away non-zero min_index. 105 */ 106GLboolean vbo_all_varyings_in_vbos( const struct gl_client_array *arrays[] ); 107 108void vbo_rebase_prims( GLcontext *ctx, 109 const struct gl_client_array *arrays[], 110 const struct _mesa_prim *prim, 111 GLuint nr_prims, 112 const struct _mesa_index_buffer *ib, 113 GLuint min_index, 114 GLuint max_index, 115 vbo_draw_func draw ); 116void 117vbo_get_minmax_index(GLcontext *ctx, const struct _mesa_prim *prim, 118 const struct _mesa_index_buffer *ib, 119 GLuint *min_index, GLuint *max_index); 120 121void vbo_use_buffer_objects(GLcontext *ctx); 122 123 124void vbo_set_draw_func(GLcontext *ctx, vbo_draw_func func); 125 126 127void GLAPIENTRY 128_vbo_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a); 129 130void GLAPIENTRY 131_vbo_Normal3f(GLfloat x, GLfloat y, GLfloat z); 132 133void GLAPIENTRY 134_vbo_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q); 135 136void GLAPIENTRY 137_vbo_Materialfv(GLenum face, GLenum pname, const GLfloat *params); 138 139void GLAPIENTRY 140_vbo_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); 141 142#endif 143