cairo/test/ft-show-glyphs-table.c
Chris Wilson e90073f7dd [test] Build test suite into single binary.
Avoid calling libtool to link every single test case, by building just one
binary from all the sources.

This binary is then given the task of choosing tests to run (based on user
selection and individual test requirement), forking each test into its own
process and accumulating the results.
2008-10-31 12:30:11 +00:00

109 lines
3.8 KiB
C

/*
* Copyright © 2008 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors: Eugeniy Meshcheryakov <eugen@debian.org>
* Adrian Johnson <ajohnson@redneon.com>
* Carl Worth <cworth@cworth.org>
*/
#include "cairo-test.h"
#include <cairo-ft.h>
#define TEXT_SIZE 20
#define PAD 10
#define GRID_SIZE 30
#define GRID_ROWS 10
#define GRID_COLS 4
#define NUM_GLYPHS (GRID_ROWS * GRID_COLS)
#define WIDTH (PAD + GRID_COLS * GRID_SIZE + PAD)
#define HEIGHT (PAD + GRID_ROWS * GRID_SIZE + PAD)
/* This test was originally inspired by this bug report:
*
* Error when creating pdf charts for new FreeSerifItalic.ttf
* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=%23474136
*
* The original assertion failure was fairly boring, but the later
* glyph mispositiing was quite interesting. And it turns out that the
* _cairo_pdf_operators_show_glyphs code is fairly convoluted with a
* code path that wasn't being exercised at all by the test suite.
*
* So this is an attempt to exercise that code path. Apparently laying
* glyphs out vertically in a table like this, (so that there's a
* large change in Y position from one glyph to the next), exercises
* the code well.
*/
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_font_options_t *font_options;
cairo_scaled_font_t *scaled_font;
FT_Face face;
FT_ULong charcode;
FT_UInt idx;
int i = 0;
cairo_glyph_t glyphs[NUM_GLYPHS];
/* paint white so we don't need separate ref images for
* RGB24 and ARGB32 */
cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
cairo_paint (cr);
cairo_select_font_face (cr, "Bitstream Vera Sans",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size (cr, TEXT_SIZE);
font_options = cairo_font_options_create ();
cairo_get_font_options (cr, font_options);
cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF);
cairo_set_font_options (cr, font_options);
cairo_font_options_destroy (font_options);
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
scaled_font = cairo_get_scaled_font (cr);
face = cairo_ft_scaled_font_lock_face (scaled_font);
{
charcode = FT_Get_First_Char(face, &idx);
while (idx && (i < NUM_GLYPHS)) {
glyphs[i] = (cairo_glyph_t) {idx, PAD + GRID_SIZE * (i/GRID_ROWS), PAD + TEXT_SIZE + GRID_SIZE * (i%GRID_ROWS)};
i++;
charcode = FT_Get_Next_Char(face, charcode, &idx);
}
}
cairo_ft_scaled_font_unlock_face (scaled_font);
cairo_show_glyphs(cr, glyphs, i);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (ft_show_glyphs_table,
"Test cairo_show_glyphs with cairo-ft backend and glyphs laid out in a table",
"ft, text", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, draw)