/usr/include/gimp-2.0/libgimpmath/gimpmatrix.h is in libgimp2.0-dev 2.8.22-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | /* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpmatrix.h
* Copyright (C) 1998 Jay Cox <jaycox@gimp.org>
*
* 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 3 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/>.
*/
#if !defined (__GIMP_MATH_H_INSIDE__) && !defined (GIMP_MATH_COMPILATION)
#error "Only <libgimpmath/gimpmath.h> can be included directly."
#endif
#ifndef __GIMP_MATRIX_H__
#define __GIMP_MATRIX_H__
G_BEGIN_DECLS
/* For information look into the C source or the html documentation */
/*****************/
/* GimpMatrix2 */
/*****************/
#define GIMP_TYPE_MATRIX2 (gimp_matrix2_get_type ())
#define GIMP_VALUE_HOLDS_MATRIX2(value) (G_TYPE_CHECK_VALUE_TYPE ((value), GIMP_TYPE_MATRIX2))
GType gimp_matrix2_get_type (void) G_GNUC_CONST;
#define GIMP_TYPE_PARAM_MATRIX2 (gimp_param_matrix2_get_type ())
#define GIMP_IS_PARAM_SPEC_MATRIX2(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), GIMP_TYPE_PARAM_MATRIX2))
GType gimp_param_matrix2_get_type (void) G_GNUC_CONST;
GParamSpec * gimp_param_spec_matrix2 (const gchar *name,
const gchar *nick,
const gchar *blurb,
const GimpMatrix2 *default_value,
GParamFlags flags);
void gimp_matrix2_identity (GimpMatrix2 *matrix);
void gimp_matrix2_mult (const GimpMatrix2 *matrix1,
GimpMatrix2 *matrix2);
/*****************/
/* GimpMatrix3 */
/*****************/
#define GIMP_TYPE_MATRIX3 (gimp_matrix3_get_type ())
#define GIMP_VALUE_HOLDS_MATRIX3(value) (G_TYPE_CHECK_VALUE_TYPE ((value), GIMP_TYPE_MATRIX3))
GType gimp_matrix3_get_type (void) G_GNUC_CONST;
#define GIMP_TYPE_PARAM_MATRIX3 (gimp_param_matrix3_get_type ())
#define GIMP_IS_PARAM_SPEC_MATRIX3(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), GIMP_TYPE_PARAM_MATRIX3))
GType gimp_param_matrix3_get_type (void) G_GNUC_CONST;
GParamSpec * gimp_param_spec_matrix3 (const gchar *name,
const gchar *nick,
const gchar *blurb,
const GimpMatrix3 *default_value,
GParamFlags flags);
void gimp_matrix3_identity (GimpMatrix3 *matrix);
void gimp_matrix3_mult (const GimpMatrix3 *matrix1,
GimpMatrix3 *matrix2);
void gimp_matrix3_translate (GimpMatrix3 *matrix,
gdouble x,
gdouble y);
void gimp_matrix3_scale (GimpMatrix3 *matrix,
gdouble x,
gdouble y);
void gimp_matrix3_rotate (GimpMatrix3 *matrix,
gdouble theta);
void gimp_matrix3_xshear (GimpMatrix3 *matrix,
gdouble amount);
void gimp_matrix3_yshear (GimpMatrix3 *matrix,
gdouble amount);
void gimp_matrix3_affine (GimpMatrix3 *matrix,
gdouble a,
gdouble b,
gdouble c,
gdouble d,
gdouble e,
gdouble f);
gdouble gimp_matrix3_determinant (const GimpMatrix3 *matrix);
void gimp_matrix3_invert (GimpMatrix3 *matrix);
gboolean gimp_matrix3_is_identity (const GimpMatrix3 *matrix);
gboolean gimp_matrix3_is_diagonal (const GimpMatrix3 *matrix);
gboolean gimp_matrix3_is_affine (const GimpMatrix3 *matrix);
gboolean gimp_matrix3_is_simple (const GimpMatrix3 *matrix);
void gimp_matrix3_transform_point (const GimpMatrix3 *matrix,
gdouble x,
gdouble y,
gdouble *newx,
gdouble *newy);
/*****************/
/* GimpMatrix4 */
/*****************/
void gimp_matrix4_to_deg (const GimpMatrix4 *matrix,
gdouble *a,
gdouble *b,
gdouble *c);
G_END_DECLS
#endif /* __GIMP_MATRIX_H__ */
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