Attachment 5908 Details for Bug 6759 – a test case.

a test case.

ft-text-antialias-none.c (text/x-csrc), 3.96 KB, created by Jinghua Luo on 2006-06-14 08:30:23 UTC

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Creator: Jinghua Luo

Created: 2006-06-14 08:30:23 UTC

Size: 3.96 KB

patch

obsolete

>/*
> * Copyright Â© 2006 Jinghua Luo
> *
> * Permission to use, copy, modify, distribute, and sell this software
> * and its documentation for any purpose is hereby granted without
> * fee, provided that the above copyright notice appear in all copies
> * and that both that copyright notice and this permission notice
> * appear in supporting documentation, and that the name of
> * Red Hat, Inc. not be used in advertising or publicity pertaining to
> * distribution of the software without specific, written prior
> * permission. Red Hat, Inc. makes no representations about the
> * suitability of this software for any purpose.  It is provided "as
> * is" without express or implied warranty.
> *
> * JINGHUA LUO DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
> * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
> * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
> * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
> * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
> * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
> * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> *
> * Author: Jinghua Luo <sunmoon1997@gmail.com>
> * Derived from:
> *  text-antialias-none.c,
> *  ft-font-create-for-ft-face.c.
> * Original Author: Carl D. Worth <cworth@cworth.org>
> */
>#include "cairo-test.h"
>#include <cairo-ft.h>
>
>#define WIDTH  40
>#define HEIGHT 30
>#define TEXT_SIZE 12
>
>cairo_test_t test = {
>    "ft-text-antialias-none",
>    "Tests text rendering with no antialiasing",
>    WIDTH, HEIGHT
>};
>
>static cairo_scaled_font_t *
>create_scaled_font (cairo_t * cr)
>{
>    FcPattern *pattern, *resolved;
>    FcResult result;
>    cairo_font_face_t *font_face;
>    cairo_scaled_font_t *scaled_font;
>    cairo_font_options_t *font_options;
>    cairo_matrix_t font_matrix, ctm;
>    double pixel_size;
>
>    font_options = cairo_font_options_create ();
>
>    pattern = FcPatternCreate ();
>
>    FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *)"Bitstream vera sans");
>    FcPatternAddDouble (pattern, FC_SIZE, TEXT_SIZE);
>    FcConfigSubstitute (NULL, pattern, FcMatchPattern);
>
>    cairo_ft_font_options_substitute (font_options, pattern);
>
>    FcDefaultSubstitute (pattern);
>    resolved = FcFontMatch (NULL, pattern, &result);
>
>    /* turn antialiasing off */
>    FcPatternDel (resolved, FC_ANTIALIAS);
>    FcPatternAddBool (resolved, FC_ANTIALIAS, FcFalse);
>
>    FcPatternGetDouble (resolved, FC_PIXEL_SIZE, 0, &pixel_size);
>
>    font_face = cairo_ft_font_face_create_for_pattern (resolved);
>
>    cairo_matrix_init_identity (&font_matrix);
>    cairo_matrix_scale (&font_matrix, pixel_size, pixel_size);
>
>    cairo_get_matrix (cr, &ctm);
>
>    scaled_font = cairo_scaled_font_create (font_face,
>					    &font_matrix,
>					    &ctm,
>					    font_options);
>
>    cairo_font_options_destroy (font_options);
>    cairo_font_face_destroy (font_face);
>    FcPatternDestroy (pattern);
>    FcPatternDestroy (resolved);
>
>    return scaled_font;
>}
>
>static cairo_test_status_t
>draw (cairo_t *cr, int width, int height)
>{
>    cairo_text_extents_t extents;
>    cairo_scaled_font_t * scaled_font;
>    static char black[] = "black", blue[] = "blue";
>
>    /* We draw in the default black, so paint white first. */
>    cairo_save (cr);
>    cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
>    cairo_paint (cr);
>    cairo_restore (cr);
>
>    scaled_font = create_scaled_font (cr);
>    cairo_set_scaled_font (cr, scaled_font);
>
>    cairo_set_source_rgb (cr, 0, 0, 0); /* black */
>    cairo_text_extents (cr, black, &extents);
>    cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
>    cairo_show_text (cr, black);
>    cairo_translate (cr, 0, -extents.y_bearing + 1);
>
>    cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
>    cairo_text_extents (cr, blue, &extents);
>    cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
>    cairo_show_text (cr, blue);
>
>    cairo_scaled_font_destroy (scaled_font);
>
>    return CAIRO_TEST_SUCCESS;
>}
>
>int
>main (void)
>{
>    return cairo_test (&test, draw);
>}

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Attachments on bug 6759: 5493 | 5907 | 5908

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