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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 "main/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;

   GLint basevertex;

   GLsizei num_instances;

};

/* 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;

};

GLboolean _vbo_CreateContext( struct gl_context *ctx );

void _vbo_DestroyContext( struct gl_context *ctx );

void _vbo_InvalidateState( struct gl_context *ctx, GLuint new_state );

typedef void (*vbo_draw_func)( struct gl_context *ctx,

			       const struct gl_client_array **arrays,

			       const struct _mesa_prim *prims,

			       GLuint nr_prims,

			       const struct _mesa_index_buffer *ib,

			       GLboolean index_bounds_valid,

			       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( struct gl_context *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[] );

GLboolean vbo_any_varyings_in_vbos( const struct gl_client_array *arrays[] );

void vbo_rebase_prims( struct gl_context *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 );

void

vbo_get_minmax_index(struct gl_context *ctx, const struct _mesa_prim *prim,

		     const struct _mesa_index_buffer *ib,

		     GLuint *min_index, GLuint *max_index);

void vbo_use_buffer_objects(struct gl_context *ctx);

void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func);

void GLAPIENTRY

_es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a);

void GLAPIENTRY

_es_Normal3f(GLfloat x, GLfloat y, GLfloat z);

void GLAPIENTRY

_es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);

void GLAPIENTRY

_es_Materialfv(GLenum face, GLenum pname, const GLfloat *params);

void GLAPIENTRY

_es_Materialf(GLenum face, GLenum pname, GLfloat param);

void GLAPIENTRY

_es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);

void GLAPIENTRY

_es_VertexAttrib1f(GLuint indx, GLfloat x);

void GLAPIENTRY

_es_VertexAttrib1fv(GLuint indx, const GLfloat* values);

void GLAPIENTRY

_es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y);

void GLAPIENTRY

_es_VertexAttrib2fv(GLuint indx, const GLfloat* values);

void GLAPIENTRY

_es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z);

void GLAPIENTRY

_es_VertexAttrib3fv(GLuint indx, const GLfloat* values);

void GLAPIENTRY

_es_VertexAttrib4fv(GLuint indx, const GLfloat* values);

#endif