mutter/cogl/cogl-vertex-attribute-private.h
Robert Bragg 070d90937b cogl: Adds experimental CoglVertexAttribute API
A CoglVertexAttribute defines a single attribute contained in a
CoglVertexArray. I.e. a CoglVertexArray is simply a buffer of N bytes
intended for containing a collection of attributes (position, color,
normals etc) and a CoglVertexAttribute defines one such attribute by
specifying its start offset in the array, its type, the number of
components and the stride etc.
2010-11-03 18:04:26 +00:00

81 lines
2.3 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifndef __COGL_VERTEX_ATTRIBUTE_PRIVATE_H
#define __COGL_VERTEX_ATTRIBUTE_PRIVATE_H
#include "cogl-object-private.h"
#include "cogl-vertex-attribute.h"
typedef enum
{
COGL_VERTEX_ATTRIBUTE_NAME_ID_POSITION_ARRAY,
COGL_VERTEX_ATTRIBUTE_NAME_ID_COLOR_ARRAY,
COGL_VERTEX_ATTRIBUTE_NAME_ID_TEXTURE_COORD_ARRAY,
COGL_VERTEX_ATTRIBUTE_NAME_ID_NORMAL_ARRAY,
COGL_VERTEX_ATTRIBUTE_NAME_ID_CUSTOM_ARRAY
} CoglVertexAttributeNameID;
struct _CoglVertexAttribute
{
CoglObject _parent;
CoglVertexArray *array;
char *name;
CoglVertexAttributeNameID name_id;
gsize stride;
gsize offset;
int n_components;
CoglVertexAttributeType type;
gboolean normalized;
unsigned int texture_unit;
int immutable_ref;
};
CoglVertexAttribute *
_cogl_vertex_attribute_immutable_ref (CoglVertexAttribute *vertex_attribute);
void
_cogl_vertex_attribute_immutable_unref (CoglVertexAttribute *vertex_attribute);
void
_cogl_draw_vertex_attributes_array (CoglVerticesMode mode,
int first_vertex,
int n_vertices,
CoglVertexAttribute **attributes);
void
_cogl_draw_indexed_vertex_attributes_array (CoglVerticesMode mode,
int first_vertex,
int n_vertices,
CoglIndices *indices,
CoglVertexAttribute **attributes);
#endif /* __COGL_VERTEX_ATTRIBUTE_PRIVATE_H */