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
|
/****************************************************************************
*
* ftcolor.c
*
* FreeType's glyph color management (body).
*
* Copyright (C) 2018-2020 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#include <ft2build.h>
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_SFNT_H
#include FT_INTERNAL_TRUETYPE_TYPES_H
#include FT_COLOR_H
#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
static
const FT_Palette_Data null_palette_data = { 0, NULL, NULL, 0, NULL };
/* documentation is in ftcolor.h */
FT_EXPORT_DEF( FT_Error )
FT_Palette_Data_Get( FT_Face face,
FT_Palette_Data *apalette_data )
{
if ( !face )
return FT_THROW( Invalid_Face_Handle );
if ( !apalette_data)
return FT_THROW( Invalid_Argument );
if ( FT_IS_SFNT( face ) )
*apalette_data = ( (TT_Face)face )->palette_data;
else
*apalette_data = null_palette_data;
return FT_Err_Ok;
}
/* documentation is in ftcolor.h */
FT_EXPORT_DEF( FT_Error )
FT_Palette_Select( FT_Face face,
FT_UShort palette_index,
FT_Color* *apalette )
{
FT_Error error;
TT_Face ttface;
SFNT_Service sfnt;
if ( !face )
return FT_THROW( Invalid_Face_Handle );
if ( !FT_IS_SFNT( face ) )
{
if ( apalette )
*apalette = NULL;
return FT_Err_Ok;
}
ttface = (TT_Face)face;
sfnt = (SFNT_Service)ttface->sfnt;
error = sfnt->set_palette( ttface, palette_index );
if ( error )
return error;
ttface->palette_index = palette_index;
if ( apalette )
*apalette = ttface->palette;
return FT_Err_Ok;
}
/* documentation is in ftcolor.h */
FT_EXPORT_DEF( FT_Error )
FT_Palette_Set_Foreground_Color( FT_Face face,
FT_Color foreground_color )
{
TT_Face ttface;
if ( !face )
return FT_THROW( Invalid_Face_Handle );
if ( !FT_IS_SFNT( face ) )
return FT_Err_Ok;
ttface = (TT_Face)face;
ttface->foreground_color = foreground_color;
ttface->have_foreground_color = 1;
return FT_Err_Ok;
}
#else /* !TT_CONFIG_OPTION_COLOR_LAYERS */
FT_EXPORT_DEF( FT_Error )
FT_Palette_Data_Get( FT_Face face,
FT_Palette_Data *apalette_data )
{
FT_UNUSED( face );
FT_UNUSED( apalette_data );
return FT_THROW( Unimplemented_Feature );
}
FT_EXPORT_DEF( FT_Error )
FT_Palette_Select( FT_Face face,
FT_UShort palette_index,
FT_Color* *apalette )
{
FT_UNUSED( face );
FT_UNUSED( palette_index );
FT_UNUSED( apalette );
return FT_THROW( Unimplemented_Feature );
}
FT_EXPORT_DEF( FT_Error )
FT_Palette_Set_Foreground_Color( FT_Face face,
FT_Color foreground_color )
{
FT_UNUSED( face );
FT_UNUSED( foreground_color );
return FT_THROW( Unimplemented_Feature );
}
#endif /* !TT_CONFIG_OPTION_COLOR_LAYERS */
/* END */
|