mutter/cogl/cogl-matrix-mesa.h
Robert Bragg ee237be285 matrix-mesa: move to _cogl_matrix namespace
Instead of having everything in cogl-matrix-mesa.[ch] be in the
_math namespace this now puts them in the _cogl_matrix namespace
instead, in preparation for flattening cogl-matrix-mesa.[ch] into
cogl-matrix.[ch].

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-07-04 15:31:50 +01:00

154 lines
4.6 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2009 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/>.
*
*
*/
/*
* Copyright (C) 1999-2005 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 math/m_matrix.h
* Defines basic structures for matrix-handling.
*/
#ifndef _M_MATRIX_H
#define _M_MATRIX_H
#include <cogl-matrix.h>
#include <cogl-quaternion.h>
#include <glib.h>
/*
* Symbolic names to some of the entries in the matrix
*
* These are handy for the viewport mapping, which is expressed as a matrix.
*/
#define MAT_SX 0
#define MAT_SY 5
#define MAT_SZ 10
#define MAT_TX 12
#define MAT_TY 13
#define MAT_TZ 14
/*
* These identify different kinds of 4x4 transformation matrices and we use
* this information to find fast-paths when available.
*/
enum CoglMatrixType {
COGL_MATRIX_TYPE_GENERAL, /**< general 4x4 matrix */
COGL_MATRIX_TYPE_IDENTITY, /**< identity matrix */
COGL_MATRIX_TYPE_3D_NO_ROT, /**< orthogonal projection and others... */
COGL_MATRIX_TYPE_PERSPECTIVE, /**< perspective projection matrix */
COGL_MATRIX_TYPE_2D, /**< 2-D transformation */
COGL_MATRIX_TYPE_2D_NO_ROT, /**< 2-D scale & translate only */
COGL_MATRIX_TYPE_3D /**< 3-D transformation */
} ;
void
_cogl_matrix_multiply (CoglMatrix *result,
const CoglMatrix *a,
const CoglMatrix *b);
void
_cogl_matrix_multiply_array (CoglMatrix *result, const float *b);
void
_cogl_matrix_init_from_array (CoglMatrix *matrix, const float *array);
void
_cogl_matrix_init_from_quaternion (CoglMatrix *matrix,
CoglQuaternion *quaternion);
void
_cogl_matrix_translate (CoglMatrix *matrix, float x, float y, float z);
void
_cogl_matrix_rotate (CoglMatrix *matrix, float angle,
float x, float y, float z);
void
_cogl_matrix_scale (CoglMatrix *matrix, float x, float y, float z);
void
_cogl_matrix_ortho (CoglMatrix *matrix,
float left, float right,
float bottom, float top,
float nearval, float farval);
void
_cogl_matrix_frustum (CoglMatrix *matrix,
float left, float right,
float bottom, float top,
float nearval, float farval);
void
_cogl_matrix_viewport (CoglMatrix *matrix,
float x, float y, float width, float height,
float z_near, float z_far, float depth_max);
void
_cogl_matrix_init_identity (CoglMatrix *matrix);
gboolean
_cogl_matrix_update_inverse (CoglMatrix *matrix);
void
_cogl_matrix_update_type_and_flags (CoglMatrix *matrix);
void
_cogl_matrix_print (const CoglMatrix *matrix);
gboolean
_cogl_matrix_is_length_preserving (const CoglMatrix *matrix);
gboolean
_cogl_matrix_has_rotation (const CoglMatrix *matrix);
gboolean
_cogl_matrix_is_general_scale (const CoglMatrix *matrix);
gboolean
_cogl_matrix_is_dirty (const CoglMatrix *matrix);
void
_cogl_matrix_util_transposef ( float to[16], const float from[16]);
#endif