/*
* mesa 3-D graphics library
*
* 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
* THE AUTHORS OR COPYRIGHT HOLDERS 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 <stdbool.h>
#include "main/glheader.h"
struct gl_client_array;
struct gl_context;
struct gl_transform_feedback_object;
struct _mesa_prim {
GLuint mode:8; /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */
GLuint indexed:1;
GLuint begin:1;
GLuint end:1;
GLuint weak:1;
GLuint no_current_update:1;
GLuint pad:19;
GLuint start;
GLuint count;
GLint basevertex;
GLuint num_instances;
GLuint base_instance;
};
/* 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 );
void
vbo_initialize_exec_dispatch(const struct gl_context *ctx,
struct _glapi_table *exec);
void
vbo_initialize_save_dispatch(const struct gl_context *ctx,
struct _glapi_table *exec);
typedef void (*vbo_draw_func)( struct gl_context *ctx,
const struct _mesa_prim *prims,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLboolean index_bounds_valid,
GLuint min_index,
GLuint max_index,
struct gl_transform_feedback_object *tfb_vertcount );
/* 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 );
static inline int
vbo_sizeof_ib_type(GLenum type)
{
switch (type) {
case GL_UNSIGNED_INT:
return sizeof(GLuint);
case GL_UNSIGNED_SHORT:
return sizeof(GLushort);
case GL_UNSIGNED_BYTE:
return sizeof(GLubyte);
default:
assert(!"unsupported index data type");
/* In case assert is turned off */
return 0;
}
}
void
vbo_get_minmax_indices(struct gl_context *ctx, const struct _mesa_prim *prim,
const struct _mesa_index_buffer *ib,
GLuint *min_index, GLuint *max_index, GLuint nr_prims);
void vbo_use_buffer_objects(struct gl_context *ctx);
void vbo_always_unmap_buffers(struct gl_context *ctx);
void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func);
void vbo_check_buffers_are_unmapped(struct gl_context *ctx);
void vbo_bind_arrays(struct gl_context *ctx);
size_t
vbo_count_tessellated_primitives(GLenum mode, GLuint count,
GLuint num_instances);
void
vbo_try_prim_conversion(struct _mesa_prim *p);
bool
vbo_can_merge_prims(const struct _mesa_prim *p0, const struct _mesa_prim *p1);
void
vbo_merge_prims(struct _mesa_prim *p0, const struct _mesa_prim *p1);
void
vbo_sw_primitive_restart(struct gl_context *ctx,
const struct _mesa_prim *prim,
GLuint nr_prims,
const struct _mesa_index_buffer *ib);
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