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* Copyright © 2005 Red Hat, Inc.
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Red Hat, Inc. not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Red Hat, Inc. makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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* Author: Carl D. Worth <cworth@cworth.org>
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#include "cairo-test.h"
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static cairo_test_draw_function_t draw;
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"text-lcd-filter-fir5",
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"Tests text rendering with a 5x5 kernel FIR LCD filter",
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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cairo_text_extents_t extents;
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cairo_font_options_t *font_options;
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static char black[] = "black", blue[] = "blue";
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/* We draw in the default black, so paint white first. */
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cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
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cairo_select_font_face (cr, "Bitstream Vera Sans",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size (cr, TEXT_SIZE);
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font_options = cairo_font_options_create ();
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cairo_get_font_options (cr, font_options);
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cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_SUBPIXEL);
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cairo_font_options_set_lcd_filter (font_options, CAIRO_LCD_FILTER_FIR5);
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cairo_set_font_options (cr, font_options);
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cairo_font_options_destroy (font_options);
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cairo_set_source_rgb (cr, 0, 0, 0); /* black */
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cairo_text_extents (cr, black, &extents);
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cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
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cairo_show_text (cr, black);
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cairo_translate (cr, 0, -extents.y_bearing + 1);
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cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
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cairo_text_extents (cr, blue, &extents);
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cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
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cairo_show_text (cr, blue);
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return CAIRO_TEST_SUCCESS;
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return cairo_test (&test);