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/*
* mesa 3-D graphics library
* Version: 6.5
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file vbo_context.h
* \brief VBO builder module datatypes and definitions.
* \author Keith Whitwell
*/
#ifndef _VBO_H
#define _VBO_H
#include "mtypes.h"
struct _mesa_prim {
GLuint mode:8;
GLuint indexed:1;
GLuint begin:1;
GLuint end:1;
GLuint weak:1;
GLuint pad:20;
GLuint start;
GLuint count;
};
/* Would like to call this a "vbo_index_buffer", but this would be
* confusing as the indices are not neccessarily yet in a non-null
* buffer object.
*/
struct _mesa_index_buffer {
GLuint count;
GLenum type;
struct gl_buffer_object *obj;
const void *ptr;
GLuint rebase;
};
GLboolean _vbo_CreateContext( GLcontext *ctx );
void _vbo_DestroyContext( GLcontext *ctx );
void _vbo_InvalidateState( GLcontext *ctx, GLuint new_state );
typedef void (*vbo_draw_func)( GLcontext *ctx,
const struct gl_client_array **arrays,
const struct _mesa_prim *prims,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLuint min_index,
GLuint max_index );
/* Utility function to cope with various constraints on tnl modules or
* hardware. This can be used to split an incoming set of arrays and
* primitives against the following constraints:
* - Maximum number of indices in index buffer.
* - Maximum number of vertices referenced by index buffer.
* - Maximum hardware vertex buffer size.
*/
struct split_limits {
GLuint max_verts;
GLuint max_indices;
GLuint max_vb_size; /* bytes */
};
void vbo_split_prims( GLcontext *ctx,
const struct gl_client_array *arrays[],
const struct _mesa_prim *prim,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLuint min_index,
GLuint max_index,
vbo_draw_func draw,
const struct split_limits *limits );
/* Helpers for dealing translating away non-zero min_index.
*/
GLboolean vbo_all_varyings_in_vbos( const struct gl_client_array *arrays[] );
void vbo_rebase_prims( GLcontext *ctx,
const struct gl_client_array *arrays[],
const struct _mesa_prim *prim,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLuint min_index,
GLuint max_index,
vbo_draw_func draw );
#endif
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