1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/*
* Copyright © 2017 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.
*
* Author: MAtthias Clasen <mclasen@redhat.com>
*/
#include "cairo-test.h"
#include <assert.h>
/* This test requires freetype2 */
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_MULTIPLE_MASTERS_H
#if CAIRO_HAS_FC_FONT
#include <fontconfig/fontconfig.h>
#endif
#include "cairo-ft.h"
#define FloatToFixed(f) ((FT_Fixed)((f)*65536))
static cairo_test_status_t
test_variation (cairo_test_context_t *ctx,
const char *input,
const char *tag,
int def,
float expected_value)
{
cairo_font_face_t *font_face;
cairo_scaled_font_t *scaled_font;
cairo_matrix_t matrix;
cairo_font_options_t *options;
cairo_status_t status;
FT_Face ft_face;
FT_MM_Var *ft_mm_var;
FT_Error ret;
FT_Fixed coords[20];
unsigned int i;
#if CAIRO_HAS_FC_FONT
FcPattern *pattern;
/* we need a font that has variations */
pattern = FcPatternBuild (NULL,
FC_FAMILY, FcTypeString, (FcChar8*)"Adobe Variable Font Prototype",
NULL);
font_face = cairo_ft_font_face_create_for_pattern (pattern);
status = cairo_font_face_status (font_face);
FcPatternDestroy (pattern);
if (status != CAIRO_STATUS_SUCCESS) {
cairo_test_log (ctx, "Failed to create font face");
return CAIRO_TEST_FAILURE;
}
cairo_matrix_init_identity (&matrix);
options = cairo_font_options_create ();
if (cairo_font_options_status (options) != CAIRO_STATUS_SUCCESS) {
cairo_test_log (ctx, "Failed to create font options");
return CAIRO_TEST_FAILURE;
}
cairo_font_options_set_variations (options, input);
if (cairo_font_options_status (options) != CAIRO_STATUS_SUCCESS) {
cairo_test_log (ctx, "Failed to set variations");
return CAIRO_TEST_FAILURE;
}
if (strcmp (cairo_font_options_get_variations (options), input) != 0) {
cairo_test_log (ctx, "Failed to verify variations");
return CAIRO_TEST_FAILURE;
}
scaled_font = cairo_scaled_font_create (font_face, &matrix, &matrix, options);
status = cairo_scaled_font_status (scaled_font);
if (status != CAIRO_STATUS_SUCCESS) {
cairo_test_log (ctx, "Failed to create scaled font");
return CAIRO_TEST_FAILURE;
}
ft_face = cairo_ft_scaled_font_lock_face (scaled_font);
if (cairo_scaled_font_status (scaled_font) != CAIRO_STATUS_SUCCESS) {
cairo_test_log (ctx, "Failed to get FT_Face");
return CAIRO_TEST_FAILURE;
}
if (strcmp (ft_face->family_name, "Adobe Variable Font Prototype") != 0) {
cairo_test_log (ctx, "This test requires the font \"Adobe Variable Font Prototype\" (https://github.com/adobe-fonts/adobe-variable-font-prototype/releases)");
return CAIRO_TEST_UNTESTED;
}
ret = FT_Get_MM_Var (ft_face, &ft_mm_var);
if (ret != 0) {
cairo_test_log (ctx, "Failed to get MM");
return CAIRO_TEST_FAILURE;
}
#ifdef HAVE_FT_GET_VAR_DESIGN_COORDINATES
ret = FT_Get_Var_Design_Coordinates (ft_face, 20, coords);
if (ret != 0) {
cairo_test_log (ctx, "Failed to get coords");
return CAIRO_TEST_FAILURE;
}
#else
return CAIRO_TEST_UNTESTED;
#endif
for (i = 0; i < ft_mm_var->num_axis; i++) {
FT_Var_Axis *axis = &ft_mm_var->axis[i];
cairo_test_log (ctx, "axis %s, value %g\n", axis->name, coords[i] / 65536.);
}
for (i = 0; i < ft_mm_var->num_axis; i++) {
FT_Var_Axis *axis = &ft_mm_var->axis[i];
if (axis->tag == FT_MAKE_TAG(tag[0], tag[1], tag[2], tag[3])) {
if (def) {
if (coords[i] != axis->def) {
cairo_test_log (ctx, "Axis %s: not default value (%g != %g)",
axis->name, coords[i] / 65536., axis->def / 65536.);
return CAIRO_TEST_FAILURE;
}
}
else {
if (coords[i] != FloatToFixed(expected_value)) {
cairo_test_log (ctx, "Axis %s: not expected value (%g != %g)",
axis->name, coords[i] / 65536., expected_value);
return CAIRO_TEST_FAILURE;
}
}
}
else {
}
}
cairo_ft_scaled_font_unlock_face (scaled_font);
cairo_scaled_font_destroy (scaled_font);
cairo_font_options_destroy (options);
cairo_font_face_destroy (font_face);
return CAIRO_TEST_SUCCESS;
#else
return CAIRO_TEST_UNTESTED;
#endif
}
static cairo_test_status_t
preamble (cairo_test_context_t *ctx)
{
cairo_test_status_t status = CAIRO_TEST_SUCCESS;
struct { const char *input;
const char *tag;
int expected_default;
float expected_value;
} tests[] = {
{ "wdth=200,wght=300", "wght", 0, 300.0 }, // valid
{ "wdth=200.5,wght=300.5", "wght", 0, 300.5 }, // valid, using decimal dot
{ "wdth 200 , wght 300", "wght", 0, 300.0 }, // valid, without =
{ "wght = 200", "wght", 0, 200.0 }, // valid, whitespace and =
{ "CNTR=20", "wght", 1, 0.0 }, // valid, not setting wght
{ "weight=100", "wght", 1, 0.0 }, // not a valid tag
{ NULL, 0 }
};
int i;
for (i = 0; tests[i].input; i++) {
status = test_variation (ctx,
tests[i].input,
tests[i].tag,
tests[i].expected_default,
tests[i].expected_value);
if (status != CAIRO_TEST_SUCCESS)
return status;
}
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (font_variations,
"Test font variations",
"fonts", /* keywords */
NULL, /* requirements */
9, 11,
preamble, NULL)
|
