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cairo/test/user-font.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

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/*
* Copyright © 2006, 2008 Red Hat, Inc.
*
* 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.
*
* RED HAT, INC. 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.
*
* Contributor(s):
* Kristian Høgsberg <krh@redhat.com>
* Behdad Esfahbod <behdad@behdad.org>
*/
#include <stdlib.h>
#include <stdio.h>
#include "cairo-test.h"
/*#define ROTATED 1*/
#define BORDER 10
#define TEXT_SIZE 64
#define WIDTH (TEXT_SIZE * 15 + 2*BORDER)
#define HEIGHT ((TEXT_SIZE + 2*BORDER)*2)
#define TEXT "geez... cairo user-font"
#define END_GLYPH 0
#define STROKE 126
#define CLOSE 127
/* Simple glyph definition: 1 - 15 means lineto (or moveto for first
* point) for one of the points on this grid:
*
* 1 2 3
* 4 5 6
* 7 8 9
* ----10 11 12----(baseline)
* 13 14 15
*/
typedef struct {
unsigned long ucs4;
int width;
char data[16];
} test_scaled_font_glyph_t;
static cairo_user_data_key_t test_font_face_glyphs_key;
static cairo_status_t
test_scaled_font_init (cairo_scaled_font_t *scaled_font,
cairo_t *cr,
cairo_font_extents_t *metrics)
{
metrics->ascent = .75;
metrics->descent = .25;
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
test_scaled_font_unicode_to_glyph (cairo_scaled_font_t *scaled_font,
unsigned long unicode,
unsigned long *glyph)
{
test_scaled_font_glyph_t *glyphs = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
&test_font_face_glyphs_key);
int i;
for (i = 0; glyphs[i].ucs4 != (unsigned long) -1; i++)
if (glyphs[i].ucs4 == unicode) {
*glyph = i;
return CAIRO_STATUS_SUCCESS;
}
/* Not found. Default to glyph 0 */
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
test_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
unsigned long glyph,
cairo_t *cr,
cairo_text_extents_t *metrics)
{
test_scaled_font_glyph_t *glyphs = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
&test_font_face_glyphs_key);
int i;
const char *data;
div_t d;
double x, y;
/* FIXME: We simply crash on out-of-bound glyph indices */
metrics->x_advance = glyphs[glyph].width / 4.0;
cairo_set_line_width (cr, 0.1);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
data = glyphs[glyph].data;
for (i = 0; data[i] != END_GLYPH; i++) {
switch (data[i]) {
case STROKE:
cairo_new_sub_path (cr);
break;
case CLOSE:
cairo_close_path (cr);
break;
default:
d = div (data[i] - 1, 3);
x = d.rem / 4.0 + 0.125;
y = d.quot / 5.0 + 0.4 - 1.0;
cairo_line_to (cr, x, y);
}
}
cairo_stroke (cr);
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_user_font_face_create (cairo_font_face_t **out)
{
/* Simple glyph definition: 1 - 15 means lineto (or moveto for first
* point) for one of the points on this grid:
*
* 1 2 3
* 4 5 6
* 7 8 9
* ----10 11 12----(baseline)
* 13 14 15
*/
static const test_scaled_font_glyph_t glyphs [] = {
{ 'a', 3, { 4, 6, 12, 10, 7, 9, STROKE, END_GLYPH } },
{ 'c', 3, { 6, 4, 10, 12, STROKE, END_GLYPH } },
{ 'e', 3, { 12, 10, 4, 6, 9, 7, STROKE, END_GLYPH } },
{ 'f', 3, { 3, 2, 11, STROKE, 4, 6, STROKE, END_GLYPH } },
{ 'g', 3, { 12, 10, 4, 6, 15, 13, STROKE, END_GLYPH } },
{ 'h', 3, { 1, 10, STROKE, 7, 5, 6, 12, STROKE, END_GLYPH } },
{ 'i', 1, { 1, 1, STROKE, 4, 10, STROKE, END_GLYPH } },
{ 'l', 1, { 1, 10, STROKE, END_GLYPH } },
{ 'n', 3, { 10, 4, STROKE, 7, 5, 6, 12, STROKE, END_GLYPH } },
{ 'o', 3, { 4, 10, 12, 6, CLOSE, END_GLYPH } },
{ 'r', 3, { 4, 10, STROKE, 7, 5, 6, STROKE, END_GLYPH } },
{ 's', 3, { 6, 4, 7, 9, 12, 10, STROKE, END_GLYPH } },
{ 't', 3, { 2, 11, 12, STROKE, 4, 6, STROKE, END_GLYPH } },
{ 'u', 3, { 4, 10, 12, 6, STROKE, END_GLYPH } },
{ 'z', 3, { 4, 6, 10, 12, STROKE, END_GLYPH } },
{ ' ', 1, { END_GLYPH } },
{ '-', 2, { 7, 8, STROKE, END_GLYPH } },
{ '.', 1, { 10, 10, STROKE, END_GLYPH } },
{ -1, 0, { END_GLYPH } },
};
cairo_font_face_t *user_font_face;
cairo_status_t status;
user_font_face = cairo_user_font_face_create ();
cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init);
cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph);
cairo_user_font_face_set_unicode_to_glyph_func (user_font_face, test_scaled_font_unicode_to_glyph);
status = cairo_font_face_set_user_data (user_font_face,
&test_font_face_glyphs_key,
(void*) glyphs, NULL);
if (status) {
cairo_font_face_destroy (user_font_face);
return status;
}
*out = user_font_face;
return CAIRO_STATUS_SUCCESS;
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_font_face_t *font_face;
const char text[] = TEXT;
cairo_font_extents_t font_extents;
cairo_text_extents_t extents;
cairo_status_t status;
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_paint (cr);
#ifdef ROTATED
cairo_translate (cr, TEXT_SIZE, 0);
cairo_rotate (cr, .6);
#endif
status = _user_font_face_create (&font_face);
if (status) {
return cairo_test_status_from_status (cairo_test_get_context (cr),
status);
}
cairo_set_font_face (cr, font_face);
cairo_font_face_destroy (font_face);
cairo_set_font_size (cr, TEXT_SIZE);
cairo_font_extents (cr, &font_extents);
cairo_text_extents (cr, text, &extents);
/* logical boundaries in red */
cairo_move_to (cr, 0, BORDER);
cairo_rel_line_to (cr, WIDTH, 0);
cairo_move_to (cr, 0, BORDER + font_extents.ascent);
cairo_rel_line_to (cr, WIDTH, 0);
cairo_move_to (cr, 0, BORDER + font_extents.ascent + font_extents.descent);
cairo_rel_line_to (cr, WIDTH, 0);
cairo_move_to (cr, BORDER, 0);
cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE);
cairo_move_to (cr, BORDER + extents.x_advance, 0);
cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE);
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_set_line_width (cr, 2);
cairo_stroke (cr);
/* ink boundaries in green */
cairo_rectangle (cr,
BORDER + extents.x_bearing, BORDER + font_extents.ascent + extents.y_bearing,
extents.width, extents.height);
cairo_set_source_rgb (cr, 0, 1, 0);
cairo_set_line_width (cr, 2);
cairo_stroke (cr);
/* text in black */
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_move_to (cr, BORDER, BORDER + font_extents.ascent);
cairo_show_text (cr, text);
/* filled version of text in blue */
cairo_set_source_rgb (cr, 0, 0, 1);
cairo_move_to (cr, BORDER, BORDER + font_extents.height + 2*BORDER + font_extents.ascent);
cairo_text_path (cr, text);
cairo_fill (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (user_font,
"Tests user font feature",
"font, user-font", /* keywords */
"cairo >= 1.7.4", /* requirements */
#ifndef ROTATED
WIDTH, HEIGHT,
#else
WIDTH, WIDTH,
#endif
NULL, draw)
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