gimp/libgimpmath/gimpmatrix.c

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpmatrix.c
* Copyright (C) 1998 Jay Cox <jaycox@gimp.org>
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
*
* This library is free software: you can redistribute it and/or
1999-11-18 05:13:50 +08:00
* modify it under the terms of the GNU Lesser General Public
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
*
* 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
* Library General Public License for more details.
*
1999-11-18 05:13:50 +08:00
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
*/
#include "config.h"
#include <glib-object.h>
#include "gimpmath.h"
/**
* SECTION: gimpmatrix
* @title: GimpMatrix
* @short_description: Utilities to set up and manipulate 3x3
* transformation matrices.
* @see_also: #GimpVector2, #GimpVector3, #GimpVector4
*
* When doing image manipulation you will often need 3x3
* transformation matrices that define translation, rotation, scaling,
* shearing and arbitrary perspective transformations using a 3x3
* matrix. Here you'll find a set of utility functions to set up those
* matrices and to perform basic matrix manipulations and tests.
*
* Each matrix class has a 2 dimensional gdouble coeff member. The
* element for row r and column c of the matrix is coeff[r][c].
**/
#define EPSILON 1e-6
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
static GimpMatrix2 * matrix2_copy (const GimpMatrix2 *matrix);
G_DEFINE_BOXED_TYPE (GimpMatrix2, gimp_matrix2, matrix2_copy, g_free)
/*
* GIMP_TYPE_PARAM_MATRIX2
*/
#define GIMP_PARAM_SPEC_MATRIX2(pspec) (G_TYPE_CHECK_INSTANCE_CAST ((pspec), GIMP_TYPE_PARAM_MATRIX2, GimpParamSpecMatrix2))
static void gimp_param_matrix2_class_init (GParamSpecClass *class);
static void gimp_param_matrix2_init (GParamSpec *pspec);
static void gimp_param_matrix2_set_default (GParamSpec *pspec,
GValue *value);
static gint gimp_param_matrix2_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2);
typedef struct _GimpParamSpecMatrix2 GimpParamSpecMatrix2;
struct _GimpParamSpecMatrix2
{
GParamSpecBoxed parent_instance;
GimpMatrix2 default_value;
};
/**
* gimp_param_matrix2_get_type:
*
* Reveals the object type
*
* Returns: the #GType for a GimpMatrix2 object
*
* Since: 2.4
**/
GType
gimp_param_matrix2_get_type (void)
{
static GType spec_type = 0;
if (!spec_type)
{
static const GTypeInfo type_info =
{
sizeof (GParamSpecClass),
NULL, NULL,
(GClassInitFunc) gimp_param_matrix2_class_init,
NULL, NULL,
sizeof (GimpParamSpecMatrix2),
0,
(GInstanceInitFunc) gimp_param_matrix2_init
};
spec_type = g_type_register_static (G_TYPE_PARAM_BOXED,
"GimpParamMatrix2",
&type_info, 0);
}
return spec_type;
}
static void
gimp_param_matrix2_class_init (GParamSpecClass *class)
{
class->value_type = GIMP_TYPE_MATRIX2;
class->value_set_default = gimp_param_matrix2_set_default;
class->values_cmp = gimp_param_matrix2_values_cmp;
}
static void
gimp_param_matrix2_init (GParamSpec *pspec)
{
GimpParamSpecMatrix2 *cspec = GIMP_PARAM_SPEC_MATRIX2 (pspec);
gimp_matrix2_identity (&cspec->default_value);
}
static void
gimp_param_matrix2_set_default (GParamSpec *pspec,
GValue *value)
{
GimpParamSpecMatrix2 *cspec = GIMP_PARAM_SPEC_MATRIX2 (pspec);
g_value_set_static_boxed (value, &cspec->default_value);
}
static gint
gimp_param_matrix2_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
GimpMatrix2 *matrix1;
GimpMatrix2 *matrix2;
gint i, j;
matrix1 = value1->data[0].v_pointer;
matrix2 = value2->data[0].v_pointer;
/* try to return at least *something*, it's useless anyway... */
if (! matrix1)
return matrix2 != NULL ? -1 : 0;
else if (! matrix2)
return matrix1 != NULL;
for (i = 0; i < 2; i++)
for (j = 0; j < 2; j++)
if (matrix1->coeff[i][j] != matrix2->coeff[i][j])
return 1;
return 0;
}
/**
* gimp_param_spec_matrix2:
* @name: Canonical name of the param
* @nick: Nickname of the param
* @blurb: Brief description of param.
* @default_value: Value to use if none is assigned.
* @flags: a combination of #GParamFlags
*
* Creates a param spec to hold a #GimpMatrix2 value.
* See g_param_spec_internal() for more information.
*
* Returns: (transfer full): a newly allocated #GParamSpec instance
*
* Since: 2.4
**/
GParamSpec *
gimp_param_spec_matrix2 (const gchar *name,
const gchar *nick,
const gchar *blurb,
const GimpMatrix2 *default_value,
GParamFlags flags)
{
GimpParamSpecMatrix2 *cspec;
g_return_val_if_fail (default_value != NULL, NULL);
cspec = g_param_spec_internal (GIMP_TYPE_PARAM_MATRIX2,
name, nick, blurb, flags);
cspec->default_value = *default_value;
return G_PARAM_SPEC (cspec);
}
static GimpMatrix2 *
matrix2_copy (const GimpMatrix2 *matrix)
{
return (GimpMatrix2 *) g_memdup2 (matrix, sizeof (GimpMatrix2));
}
/**
* gimp_matrix2_identity:
* @matrix: A matrix.
*
* Sets the matrix to the identity matrix.
*/
void
gimp_matrix2_identity (GimpMatrix2 *matrix)
{
static const GimpMatrix2 identity = { { { 1.0, 0.0 },
{ 0.0, 1.0 } } };
*matrix = identity;
}
/**
* gimp_matrix2_mult:
* @left: The first input matrix.
* @right: The second input matrix which will be overwritten by the result.
*
* Multiplies two matrices and puts the result into the second one.
*/
void
gimp_matrix2_mult (const GimpMatrix2 *left,
GimpMatrix2 *right)
{
gdouble r00 = right->coeff[0][0];
gdouble r01 = right->coeff[0][1];
right->coeff[0][0] = (left->coeff[0][0] * r00 +
left->coeff[0][1] * right->coeff[1][0]);
right->coeff[0][1] = (left->coeff[0][0] * r01 +
left->coeff[0][1] * right->coeff[1][1]);
right->coeff[1][0] = (left->coeff[1][0] * r00 +
left->coeff[1][1] * right->coeff[1][0]);
right->coeff[1][1] = (left->coeff[1][0] * r01 +
left->coeff[1][1] * right->coeff[1][1]);
}
/**
* gimp_matrix2_determinant:
* @matrix: The input matrix.
*
* Calculates the determinant of the given matrix.
*
* Returns: The determinant.
*
* Since: 2.10.16
*/
gdouble
gimp_matrix2_determinant (const GimpMatrix2 *matrix)
{
return matrix->coeff[0][0] * matrix->coeff[1][1] -
matrix->coeff[0][1] * matrix->coeff[1][0];
}
/**
* gimp_matrix2_invert:
* @matrix: The matrix that is to be inverted.
*
* Inverts the given matrix.
*
* Since: 2.10.16
*/
void
gimp_matrix2_invert (GimpMatrix2 *matrix)
{
gdouble det = gimp_matrix2_determinant (matrix);
gdouble temp;
if (fabs (det) <= EPSILON)
return;
temp = matrix->coeff[0][0];
matrix->coeff[0][0] = matrix->coeff[1][1] / det;
matrix->coeff[0][1] /= -det;
matrix->coeff[1][0] /= -det;
matrix->coeff[1][1] = temp / det;
}
/**
* gimp_matrix2_transform_point:
* @matrix: The transformation matrix.
* @x: The source X coordinate.
* @y: The source Y coordinate.
* @newx: (out): The transformed X coordinate.
* @newy: (out): The transformed Y coordinate.
*
* Transforms a point in 2D as specified by the transformation matrix.
*
* Since: 2.10.16
*/
void
gimp_matrix2_transform_point (const GimpMatrix2 *matrix,
gdouble x,
gdouble y,
gdouble *newx,
gdouble *newy)
{
*newx = matrix->coeff[0][0] * x + matrix->coeff[0][1] * y;
*newy = matrix->coeff[1][0] * x + matrix->coeff[1][1] * y;
}
static GimpMatrix3 * matrix3_copy (const GimpMatrix3 *matrix);
G_DEFINE_BOXED_TYPE (GimpMatrix3, gimp_matrix3, matrix3_copy, g_free)
/*
* GIMP_TYPE_PARAM_MATRIX3
*/
#define GIMP_PARAM_SPEC_MATRIX3(pspec) (G_TYPE_CHECK_INSTANCE_CAST ((pspec), GIMP_TYPE_PARAM_MATRIX3, GimpParamSpecMatrix3))
static void gimp_param_matrix3_class_init (GParamSpecClass *class);
static void gimp_param_matrix3_init (GParamSpec *pspec);
static void gimp_param_matrix3_set_default (GParamSpec *pspec,
GValue *value);
static gint gimp_param_matrix3_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2);
typedef struct _GimpParamSpecMatrix3 GimpParamSpecMatrix3;
struct _GimpParamSpecMatrix3
{
GParamSpecBoxed parent_instance;
GimpMatrix3 default_value;
};
/**
* gimp_param_matrix3_get_type:
*
* Reveals the object type
*
* Returns: the #GType for a GimpMatrix3 object
*
* Since: 2.8
**/
GType
gimp_param_matrix3_get_type (void)
{
static GType spec_type = 0;
if (!spec_type)
{
static const GTypeInfo type_info =
{
sizeof (GParamSpecClass),
NULL, NULL,
(GClassInitFunc) gimp_param_matrix3_class_init,
NULL, NULL,
sizeof (GimpParamSpecMatrix3),
0,
(GInstanceInitFunc) gimp_param_matrix3_init
};
spec_type = g_type_register_static (G_TYPE_PARAM_BOXED,
"GimpParamMatrix3",
&type_info, 0);
}
return spec_type;
}
static void
gimp_param_matrix3_class_init (GParamSpecClass *class)
{
class->value_type = GIMP_TYPE_MATRIX3;
class->value_set_default = gimp_param_matrix3_set_default;
class->values_cmp = gimp_param_matrix3_values_cmp;
}
static void
gimp_param_matrix3_init (GParamSpec *pspec)
{
GimpParamSpecMatrix3 *cspec = GIMP_PARAM_SPEC_MATRIX3 (pspec);
gimp_matrix3_identity (&cspec->default_value);
}
static void
gimp_param_matrix3_set_default (GParamSpec *pspec,
GValue *value)
{
GimpParamSpecMatrix3 *cspec = GIMP_PARAM_SPEC_MATRIX3 (pspec);
g_value_set_static_boxed (value, &cspec->default_value);
}
static gint
gimp_param_matrix3_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
GimpMatrix3 *matrix1;
GimpMatrix3 *matrix2;
gint i, j;
matrix1 = value1->data[0].v_pointer;
matrix2 = value2->data[0].v_pointer;
/* try to return at least *something*, it's useless anyway... */
if (! matrix1)
return matrix2 != NULL ? -1 : 0;
else if (! matrix2)
return matrix1 != NULL;
for (i = 0; i < 3; i++)
for (j = 0; j < 3; j++)
if (matrix1->coeff[i][j] != matrix2->coeff[i][j])
return 1;
return 0;
}
/**
* gimp_param_spec_matrix3:
* @name: Canonical name of the param
* @nick: Nickname of the param
* @blurb: Brief description of param.
* @default_value: Value to use if none is assigned.
* @flags: a combination of #GParamFlags
*
* Creates a param spec to hold a #GimpMatrix3 value.
* See g_param_spec_internal() for more information.
*
* Returns: (transfer full): a newly allocated #GParamSpec instance
*
* Since: 2.8
**/
GParamSpec *
gimp_param_spec_matrix3 (const gchar *name,
const gchar *nick,
const gchar *blurb,
const GimpMatrix3 *default_value,
GParamFlags flags)
{
GimpParamSpecMatrix3 *cspec;
cspec = g_param_spec_internal (GIMP_TYPE_PARAM_MATRIX3,
name, nick, blurb, flags);
if (default_value)
cspec->default_value = *default_value;
return G_PARAM_SPEC (cspec);
}
static GimpMatrix3 *
matrix3_copy (const GimpMatrix3 *matrix)
{
return (GimpMatrix3 *) g_memdup2 (matrix, sizeof (GimpMatrix3));
}
/**
* gimp_matrix3_identity:
* @matrix: A matrix.
*
* Sets the matrix to the identity matrix.
*/
void
gimp_matrix3_identity (GimpMatrix3 *matrix)
{
static const GimpMatrix3 identity = { { { 1.0, 0.0, 0.0 },
{ 0.0, 1.0, 0.0 },
{ 0.0, 0.0, 1.0 } } };
*matrix = identity;
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_transform_point:
2000-02-07 06:45:55 +08:00
* @matrix: The transformation matrix.
* @x: The source X coordinate.
* @y: The source Y coordinate.
* @newx: The transformed X coordinate.
* @newy: The transformed Y coordinate.
*
2000-02-07 06:45:55 +08:00
* Transforms a point in 2D as specified by the transformation matrix.
*/
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
void
gimp_matrix3_transform_point (const GimpMatrix3 *matrix,
2003-09-28 07:02:39 +08:00
gdouble x,
gdouble y,
gdouble *newx,
gdouble *newy)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
{
gdouble w;
2000-02-07 06:45:55 +08:00
w = matrix->coeff[2][0] * x + matrix->coeff[2][1] * y + matrix->coeff[2][2];
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
if (w == 0.0)
w = 1.0;
else
w = 1.0/w;
*newx = (matrix->coeff[0][0] * x +
matrix->coeff[0][1] * y +
matrix->coeff[0][2]) * w;
*newy = (matrix->coeff[1][0] * x +
matrix->coeff[1][1] * y +
matrix->coeff[1][2]) * w;
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_mult:
* @left: The first input matrix.
* @right: The second input matrix which will be overwritten by the result.
*
2000-02-07 06:45:55 +08:00
* Multiplies two matrices and puts the result into the second one.
*/
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
void
gimp_matrix3_mult (const GimpMatrix3 *left,
GimpMatrix3 *right)
{
gint i;
gdouble li0, li1, li2;
gdouble r00 = right->coeff[0][0];
gdouble r01 = right->coeff[0][1];
gdouble r02 = right->coeff[0][2];
gdouble r10 = right->coeff[1][0];
gdouble r11 = right->coeff[1][1];
gdouble r12 = right->coeff[1][2];
gdouble r20 = right->coeff[2][0];
gdouble r21 = right->coeff[2][1];
gdouble r22 = right->coeff[2][2];
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
for (i = 0; i < 3; i++)
{
li0 = left->coeff[i][0];
li1 = left->coeff[i][1];
li2 = left->coeff[i][2];
right->coeff[i][0] = li0 * r00 + li1 * r10 + li2 * r20;
right->coeff[i][1] = li0 * r01 + li1 * r11 + li2 * r21;
right->coeff[i][2] = li0 * r02 + li1 * r12 + li2 * r22;
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
}
}
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/**
* gimp_matrix3_translate:
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* @matrix: The matrix that is to be translated.
* @x: Translation in X direction.
* @y: Translation in Y direction.
*
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* Translates the matrix by x and y.
*/
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
void
gimp_matrix3_translate (GimpMatrix3 *matrix,
2003-09-28 07:02:39 +08:00
gdouble x,
gdouble y)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
{
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gdouble g, h, i;
g = matrix->coeff[2][0];
h = matrix->coeff[2][1];
i = matrix->coeff[2][2];
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matrix->coeff[0][0] += x * g;
matrix->coeff[0][1] += x * h;
matrix->coeff[0][2] += x * i;
matrix->coeff[1][0] += y * g;
matrix->coeff[1][1] += y * h;
matrix->coeff[1][2] += y * i;
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_scale:
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* @matrix: The matrix that is to be scaled.
* @x: X scale factor.
* @y: Y scale factor.
*
* Scales the matrix by x and y
2000-02-07 06:45:55 +08:00
*/
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
void
gimp_matrix3_scale (GimpMatrix3 *matrix,
2003-09-28 07:02:39 +08:00
gdouble x,
gdouble y)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
{
matrix->coeff[0][0] *= x;
matrix->coeff[0][1] *= x;
matrix->coeff[0][2] *= x;
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
matrix->coeff[1][0] *= y;
matrix->coeff[1][1] *= y;
matrix->coeff[1][2] *= y;
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_rotate:
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* @matrix: The matrix that is to be rotated.
* @theta: The angle of rotation (in radians).
*
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* Rotates the matrix by theta degrees.
*/
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
void
gimp_matrix3_rotate (GimpMatrix3 *matrix,
2003-09-28 07:02:39 +08:00
gdouble theta)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
{
2000-02-07 06:45:55 +08:00
gdouble t1, t2;
gdouble cost, sint;
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
cost = cos (theta);
sint = sin (theta);
t1 = matrix->coeff[0][0];
t2 = matrix->coeff[1][0];
matrix->coeff[0][0] = cost * t1 - sint * t2;
matrix->coeff[1][0] = sint * t1 + cost * t2;
t1 = matrix->coeff[0][1];
t2 = matrix->coeff[1][1];
matrix->coeff[0][1] = cost * t1 - sint * t2;
matrix->coeff[1][1] = sint * t1 + cost * t2;
t1 = matrix->coeff[0][2];
t2 = matrix->coeff[1][2];
matrix->coeff[0][2] = cost * t1 - sint * t2;
matrix->coeff[1][2] = sint * t1 + cost * t2;
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_xshear:
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* @matrix: The matrix that is to be sheared.
* @amount: X shear amount.
*
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* Shears the matrix in the X direction.
*/
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
void
gimp_matrix3_xshear (GimpMatrix3 *matrix,
2003-09-28 07:02:39 +08:00
gdouble amount)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
{
matrix->coeff[0][0] += amount * matrix->coeff[1][0];
matrix->coeff[0][1] += amount * matrix->coeff[1][1];
matrix->coeff[0][2] += amount * matrix->coeff[1][2];
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
}
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/**
* gimp_matrix3_yshear:
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* @matrix: The matrix that is to be sheared.
* @amount: Y shear amount.
*
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* Shears the matrix in the Y direction.
*/
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
void
gimp_matrix3_yshear (GimpMatrix3 *matrix,
2003-09-28 07:02:39 +08:00
gdouble amount)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
{
matrix->coeff[1][0] += amount * matrix->coeff[0][0];
matrix->coeff[1][1] += amount * matrix->coeff[0][1];
matrix->coeff[1][2] += amount * matrix->coeff[0][2];
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
}
/**
* gimp_matrix3_affine:
* @matrix: The input matrix.
2010-07-02 20:48:24 +08:00
* @a: the 'a' coefficient
* @b: the 'b' coefficient
* @c: the 'c' coefficient
* @d: the 'd' coefficient
* @e: the 'e' coefficient
* @f: the 'f' coefficient
*
* Applies the affine transformation given by six values to @matrix.
* The six values form define an affine transformation matrix as
* illustrated below:
*
* ( a c e )
* ( b d f )
* ( 0 0 1 )
**/
void
gimp_matrix3_affine (GimpMatrix3 *matrix,
gdouble a,
gdouble b,
gdouble c,
gdouble d,
gdouble e,
gdouble f)
{
GimpMatrix3 affine;
affine.coeff[0][0] = a;
affine.coeff[1][0] = b;
affine.coeff[2][0] = 0.0;
affine.coeff[0][1] = c;
affine.coeff[1][1] = d;
affine.coeff[2][1] = 0.0;
affine.coeff[0][2] = e;
affine.coeff[1][2] = f;
affine.coeff[2][2] = 1.0;
gimp_matrix3_mult (&affine, matrix);
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_determinant:
* @matrix: The input matrix.
*
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* Calculates the determinant of the given matrix.
*
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* Returns: The determinant.
*/
gdouble
gimp_matrix3_determinant (const GimpMatrix3 *matrix)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
{
gdouble m01 = matrix->coeff[0][1];
gdouble m02 = matrix->coeff[0][2];
gdouble m11 = matrix->coeff[1][1];
gdouble m12 = matrix->coeff[1][2];
gdouble m21 = matrix->coeff[2][1];
gdouble m22 = matrix->coeff[2][2];
return matrix->coeff[0][0] * (m11 * m22 - m12 * m21)
- matrix->coeff[1][0] * (m01 * m22 - m02 * m21)
+ matrix->coeff[2][0] * (m01 * m12 - m02 * m11);
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_invert:
2000-02-07 06:45:55 +08:00
* @matrix: The matrix that is to be inverted.
*
2000-02-07 06:45:55 +08:00
* Inverts the given matrix.
*/
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
void
gimp_matrix3_invert (GimpMatrix3 *matrix)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
{
gdouble det;
gdouble m00 = matrix->coeff[0][0];
gdouble m01 = matrix->coeff[0][1];
gdouble m02 = matrix->coeff[0][2];
gdouble m10 = matrix->coeff[1][0];
gdouble m11 = matrix->coeff[1][1];
gdouble m12 = matrix->coeff[1][2];
gdouble m20 = matrix->coeff[2][0];
gdouble m21 = matrix->coeff[2][1];
gdouble m22 = matrix->coeff[2][2];
/* To avoid redundant access to the coefficients, inline the determinant
* formula.
*
* See: https://gitlab.gnome.org/GNOME/gimp/-/merge_requests/880#note_1727051
*/
det = m00 * (m11 * m22 - m12 * m21)
- m10 * (m01 * m22 - m02 * m21)
+ m20 * (m01 * m12 - m02 * m11);
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
if (det == 0.0)
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
return;
2000-02-07 06:45:55 +08:00
det = 1.0 / det;
Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h Modified Files: ChangeLog app/Makefile.am app/channel.c app/channel.h app/channel_cmds.c app/channel_cmds.h app/drawable_cmds.c app/gimage_cmds.c app/gimpdrawable.c app/gimpdrawable.h app/gimpdrawableP.h app/gimpimage.c app/gimpimage.h app/gimpimageP.h app/internal_procs.c app/layer.c app/layer.h app/layer_cmds.c app/layer_cmds.h app/parasite_cmds.c app/perspective_tool.c app/plug_in.c app/procedural_db.c app/rotate_tool.c app/scale_tool.c app/shear_tool.c app/transform_core.c app/transform_core.h docs/parasites.txt libgimp/Makefile.am libgimp/gimp.c libgimp/gimp.h libgimp/gimpdrawable.c libgimp/gimpimage.c libgimp/gimpprotocol.c libgimp/gimpprotocol.h plug-ins/gif/gif.c plug-ins/script-fu/script-fu.c plug-ins/tiff/tiff.c Added Files: libgimp/gimpmatrix.c libgimp/gimpmatrix.h libgimp/parasite.c libgimp/parasite.h libgimp/parasiteF.h libgimp/parasiteP.h Removed Files: app/parasite.c app/parasite.h app/parasiteF.h app/parasiteP.h libgimp/gimpparasite.c libgimp/gimpparasite.h Tue Oct 13 19:24:03 1998 Jay Cox (jaycox@earthlink.net) * app/parasite.c * app/parasite.h * app/parasiteF.h * app/parasiteP.h : use a single name field instead of seperate creator/type fields. moved to libgimp/parasite* * libgimp/Makefile.am * libgimp/gimp.c * libgimp/gimp.h * libgimp/gimpdrawable.c * libgimp/gimpimage.c * libgimp/gimpprotocol.c * libgimp/gimpprotocol.h * app/Makefile.am * app/channel.c * app/channel.h * app/channel_cmds.c * app/channel_cmds.h * app/drawable_cmds.c * app/gimage_cmds.c * app/gimpdrawable.c * app/gimpdrawable.h * app/gimpdrawableP.h * app/gimpimage.c * app/gimpimage.h * app/gimpimageP.h * app/internal_procs.c * app/layer.c * app/layer.h * app/layer_cmds.c * app/layer_cmds.h * app/parasite_cmds.c * app/plug_in.c * app/procedural_db.c: Add tattoos to layers and drawables. Use new style parasites. * libgimp/gimpmatrix.c * libgimp/gimpmatrix.h: new files for matrix math. * app/perspective_tool.c * app/rotate_tool.c * app/scale_tool.c * app/shear_tool.c * app/transform_core.c * app/transform_core.h: use GimpMatrix instead of the old matrix code from transform_core. * ligimp/gimpparasite*: removed. now useing the same source for plug-ins and the core. * plug-ins/script-fu/script-fu.c * plug-ins/tiff/tiff.c * plug-ins/gif/gif.c: updated to use new style parasites.
1998-10-14 10:54:02 +08:00
matrix->coeff[0][0] = (m11 * m22 - m12 * m21) * det;
matrix->coeff[1][0] = - (m10 * m22 - m12 * m20) * det;
matrix->coeff[2][0] = (m10 * m21 - m11 * m20) * det;
matrix->coeff[0][1] = - (m01 * m22 - m02 * m21) * det;
matrix->coeff[1][1] = (m00 * m22 - m02 * m20) * det;
matrix->coeff[2][1] = - (m00 * m21 - m01 * m20) * det;
matrix->coeff[0][2] = (m01 * m12 - m02 * m11) * det;
matrix->coeff[1][2] = - (m00 * m12 - m02 * m10) * det;
matrix->coeff[2][2] = (m00 * m11 - m01 * m10) * det;
}
/* functions to test for matrix properties */
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_is_identity:
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* @matrix: The matrix that is to be tested.
*
* Checks if the given matrix is the identity matrix.
*
* Returns: %TRUE if the matrix is the identity matrix, %FALSE otherwise
2000-02-07 06:45:55 +08:00
*/
gboolean
gimp_matrix3_is_identity (const GimpMatrix3 *matrix)
{
2000-02-07 06:45:55 +08:00
gint i, j;
for (i = 0; i < 3; i++)
{
for (j = 0; j < 3; j++)
2003-09-28 07:02:39 +08:00
{
if (i == j)
{
if (fabs (matrix->coeff[i][j] - 1.0) > EPSILON)
return FALSE;
}
else
{
if (fabs (matrix->coeff[i][j]) > EPSILON)
return FALSE;
}
2003-09-28 07:02:39 +08:00
}
}
2000-02-07 06:45:55 +08:00
return TRUE;
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_is_diagonal:
2000-02-07 06:45:55 +08:00
* @matrix: The matrix that is to be tested.
*
* Checks if the given matrix is diagonal.
*
* Returns: %TRUE if the matrix is diagonal, %FALSE otherwise
2000-02-07 06:45:55 +08:00
*/
gboolean
gimp_matrix3_is_diagonal (const GimpMatrix3 *matrix)
{
gint i, j;
for (i = 0; i < 3; i++)
{
for (j = 0; j < 3; j++)
2003-09-28 07:02:39 +08:00
{
if (i != j && fabs (matrix->coeff[i][j]) > EPSILON)
return FALSE;
2003-09-28 07:02:39 +08:00
}
}
2000-02-07 06:45:55 +08:00
return TRUE;
}
/**
* gimp_matrix3_is_affine:
* @matrix: The matrix that is to be tested.
*
* Checks if the given matrix defines an affine transformation.
*
* Returns: %TRUE if the matrix defines an affine transformation,
* %FALSE otherwise
*
* Since: 2.4
*/
gboolean
gimp_matrix3_is_affine (const GimpMatrix3 *matrix)
{
return (fabs (matrix->coeff[2][0]) < EPSILON &&
fabs (matrix->coeff[2][1]) < EPSILON &&
fabs (matrix->coeff[2][2] - 1.0) < EPSILON);
}
2000-02-07 06:45:55 +08:00
/**
* gimp_matrix3_is_simple:
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* @matrix: The matrix that is to be tested.
*
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* Checks if we'll need to interpolate when applying this matrix as
* a transformation.
*
* Returns: %TRUE if all entries of the upper left 2x2 matrix are
* either 0 or 1, %FALSE otherwise
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*/
gboolean
gimp_matrix3_is_simple (const GimpMatrix3 *matrix)
{
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gdouble absm;
gint i, j;
for (i = 0; i < 2; i++)
{
for (j = 0; j < 2; j++)
2003-09-28 07:02:39 +08:00
{
absm = fabs (matrix->coeff[i][j]);
if (absm > EPSILON && fabs (absm - 1.0) > EPSILON)
return FALSE;
}
}
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return TRUE;
}
/**
* gimp_matrix3_equal:
* @matrix1: The first matrix
* @matrix2: The second matrix
*
* Checks if two matrices are equal.
*
* Returns: %TRUE the matrices are equal, %FALSE otherwise
*
* Since: 2.10.16
*/
gboolean
gimp_matrix3_equal (const GimpMatrix3 *matrix1,
const GimpMatrix3 *matrix2)
{
gint i, j;
for (i = 0; i < 3; i++)
{
for (j = 0; j < 3; j++)
{
if (fabs (matrix1->coeff[i][j] - matrix2->coeff[i][j]) > EPSILON)
return FALSE;
}
}
return TRUE;
}
/**
* gimp_matrix4_identity:
* @matrix: A matrix.
*
* Sets the matrix to the identity matrix.
*
* Since: 2.10.16
*/
void
gimp_matrix4_identity (GimpMatrix4 *matrix)
{
gint i, j;
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
matrix->coeff[i][j] = i == j;
}
}
/**
* gimp_matrix4_mult:
* @left: The first input matrix.
* @right: The second input matrix which will be overwritten by the result.
*
* Multiplies two matrices and puts the result into the second one.
*
* Since: 2.10.16
*/
void
gimp_matrix4_mult (const GimpMatrix4 *left,
GimpMatrix4 *right)
{
GimpMatrix4 result = {};
gint i, j;
gdouble li0, li1, li2, li3;
for (i = 0; i < 4; i++)
{
li0 = left->coeff[i][0];
li1 = left->coeff[i][1];
li2 = left->coeff[i][2];
li3 = left->coeff[i][3];
for (j = 0; j < 4; j++)
{
result.coeff[i][j] = li0 * right->coeff[0][j]
+ li1 * right->coeff[1][j]
+ li2 * right->coeff[2][j]
+ li3 * right->coeff[3][j];
}
}
*right = result;
}
/**
* gimp_matrix4_to_deg:
* @matrix:
* @a: (out):
* @b: (out):
* @c: (out):
*
**/
void
gimp_matrix4_to_deg (const GimpMatrix4 *matrix,
2003-09-28 07:02:39 +08:00
gdouble *a,
gdouble *b,
gdouble *c)
{
*a = 180 * (asin (matrix->coeff[1][0]) / G_PI_2);
*b = 180 * (asin (matrix->coeff[2][0]) / G_PI_2);
*c = 180 * (asin (matrix->coeff[2][1]) / G_PI_2);
}
/**
* gimp_matrix4_transform_point:
* @matrix: The transformation matrix.
* @x: The source X coordinate.
* @y: The source Y coordinate.
* @z: The source Z coordinate.
* @newx: (out): The transformed X coordinate.
* @newy: (out): The transformed Y coordinate.
* @newz: (out): The transformed Z coordinate.
*
* Transforms a point in 3D as specified by the transformation matrix.
*
* Returns: The transformed W coordinate.
*
* Since: 2.10.16
*/
gdouble
gimp_matrix4_transform_point (const GimpMatrix4 *matrix,
gdouble x,
gdouble y,
gdouble z,
gdouble *newx,
gdouble *newy,
gdouble *newz)
{
gdouble neww;
*newx = matrix->coeff[0][0] * x +
matrix->coeff[0][1] * y +
matrix->coeff[0][2] * z +
matrix->coeff[0][3];
*newy = matrix->coeff[1][0] * x +
matrix->coeff[1][1] * y +
matrix->coeff[1][2] * z +
matrix->coeff[1][3];
*newz = matrix->coeff[2][0] * x +
matrix->coeff[2][1] * y +
matrix->coeff[2][2] * z +
matrix->coeff[2][3];
neww = matrix->coeff[3][0] * x +
matrix->coeff[3][1] * y +
matrix->coeff[3][2] * z +
matrix->coeff[3][3];
*newx /= neww;
*newy /= neww;
*newz /= neww;
return neww;
}