mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
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/*
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* Copyright © 2022 Behdad Esfahbod
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*
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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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*
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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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*
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* Contributor(s):
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* Behdad Esfahbod <behdad@behdad.org>
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*/
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/* Test that user-fonts can subpixel positioning.
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*/
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#include "cairo-test.h"
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#define BORDER 10
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#define REPEAT 16
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#define TEXT_SIZE 24
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#define WIDTH (TEXT_SIZE * REPEAT + 2*BORDER)
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#define HEIGHT (TEXT_SIZE + 2*BORDER)
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static cairo_status_t
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test_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
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unsigned long glyph,
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cairo_t *cr,
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cairo_text_extents_t *metrics)
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{
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cairo_rectangle (cr, 0, .45, 1., .1);
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cairo_fill (cr);
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_font_face_t *
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_user_font_face_create (void)
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{
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cairo_font_face_t *user_font_face;
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user_font_face = cairo_user_font_face_create ();
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cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph);
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return user_font_face;
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}
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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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{
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cairo_font_face_t *font_face;
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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font_face = _user_font_face_create ();
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cairo_set_font_face (cr, font_face);
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cairo_font_face_destroy (font_face);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_set_font_size (cr, TEXT_SIZE);
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for (unsigned i = 0; i < REPEAT; i++)
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{
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cairo_move_to (cr, BORDER + TEXT_SIZE * i, BORDER + i * .1);
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cairo_show_text (cr, "-");
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}
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (user_font_subpixel,
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"Tests user font subpixel rendering",
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"font, user-font", /* keywords */
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"cairo >= 1.17.4", /* requirements */
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WIDTH, HEIGHT,
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NULL, draw)
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