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Diffstat (limited to 'src/cairo-filters.c')
-rwxr-xr-x | src/cairo-filters.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/cairo-filters.c b/src/cairo-filters.c new file mode 100755 index 000000000..dfacda58b --- /dev/null +++ b/src/cairo-filters.c @@ -0,0 +1,85 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Eric Anholt + * Copyright © 2009 Chris Wilson + * Copyright © 2005,2010 Red Hat, Inc + * Copyright © 2011 Linaro Limited + * Copyright © 2013 Samsung Research America, Silicon Valley + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Henry Song <henry.song@samsung.com> + */ + +#include "cairoint.h" +#include "cairo-filters-private.h" + +void +compute_x_coef_to_float (double *matrix, int row, int col, float *coef) +{ + int i, j; + + for (i = 0; i < col; i++) { + for (j = 0; j < row; j++) + coef[i] += matrix[i + j * col]; + } +} + +void +compute_y_coef_to_float (double *matrix, int row, int col, float *coef) +{ + int i, j; + + for (i = 0; i < row; i++) { + for (j = 0; j < col; j++) + coef[i] += matrix[i * col + j]; + } +} + +void +compute_x_coef_to_double (double *matrix, int row, int col, double *coef) +{ + int i, j; + + for (i = 0; i < col; i++) { + for (j = 0; j < row; j++) + coef[i] += matrix[i + j * col]; + } +} + +void +compute_y_coef_to_double (double *matrix, int row, int col, double *coef) +{ + int i, j; + + for (i = 0; i < row; i++) { + for (j = 0; j < col; j++) + coef[i] += matrix[i * col + j]; + } +} |