140 lines
3.9 KiB
C
140 lines
3.9 KiB
C
/*
|
|
* Copyright © 2016 Google, Inc.
|
|
* Copyright © 2018 Khaled Hosny
|
|
* Copyright © 2018 Ebrahim Byagowi
|
|
*
|
|
* This is part of HarfBuzz, a text shaping library.
|
|
*
|
|
* Permission is hereby granted, without written agreement and without
|
|
* license or royalty fees, to use, copy, modify, and distribute this
|
|
* software and its documentation for any purpose, provided that the
|
|
* above copyright notice and the following two paragraphs appear in
|
|
* all copies of this software.
|
|
*
|
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
|
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
|
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
* DAMAGE.
|
|
*
|
|
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
|
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
|
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
|
*
|
|
* Google Author(s): Sascha Brawer, Behdad Esfahbod
|
|
*/
|
|
|
|
#ifndef HB_OT_H_IN
|
|
#error "Include <hb-ot.h> instead."
|
|
#endif
|
|
|
|
#ifndef HB_OT_COLOR_H
|
|
#define HB_OT_COLOR_H
|
|
|
|
#include "hb.h"
|
|
#include "hb-ot-name.h"
|
|
|
|
HB_BEGIN_DECLS
|
|
|
|
|
|
/*
|
|
* Color palettes.
|
|
*/
|
|
|
|
HB_EXTERN hb_bool_t
|
|
hb_ot_color_has_palettes (hb_face_t *face);
|
|
|
|
HB_EXTERN unsigned int
|
|
hb_ot_color_palette_get_count (hb_face_t *face);
|
|
|
|
HB_EXTERN hb_ot_name_id_t
|
|
hb_ot_color_palette_get_name_id (hb_face_t *face,
|
|
unsigned int palette_index);
|
|
|
|
HB_EXTERN hb_ot_name_id_t
|
|
hb_ot_color_palette_color_get_name_id (hb_face_t *face,
|
|
unsigned int color_index);
|
|
|
|
/**
|
|
* hb_ot_color_palette_flags_t:
|
|
* @HB_OT_COLOR_PALETTE_FLAG_DEFAULT: Default indicating that there is nothing special
|
|
* to note about a color palette.
|
|
* @HB_OT_COLOR_PALETTE_FLAG_USABLE_WITH_LIGHT_BACKGROUND: Flag indicating that the color
|
|
* palette is appropriate to use when displaying the font on a light background such as white.
|
|
* @HB_OT_COLOR_PALETTE_FLAG_USABLE_WITH_DARK_BACKGROUND: Flag indicating that the color
|
|
* palette is appropriate to use when displaying the font on a dark background such as black.
|
|
*
|
|
* Since: 2.1.0
|
|
*/
|
|
typedef enum { /*< flags >*/
|
|
HB_OT_COLOR_PALETTE_FLAG_DEFAULT = 0x00000000u,
|
|
HB_OT_COLOR_PALETTE_FLAG_USABLE_WITH_LIGHT_BACKGROUND = 0x00000001u,
|
|
HB_OT_COLOR_PALETTE_FLAG_USABLE_WITH_DARK_BACKGROUND = 0x00000002u
|
|
} hb_ot_color_palette_flags_t;
|
|
|
|
HB_EXTERN hb_ot_color_palette_flags_t
|
|
hb_ot_color_palette_get_flags (hb_face_t *face,
|
|
unsigned int palette_index);
|
|
|
|
HB_EXTERN unsigned int
|
|
hb_ot_color_palette_get_colors (hb_face_t *face,
|
|
unsigned int palette_index,
|
|
unsigned int start_offset,
|
|
unsigned int *color_count, /* IN/OUT. May be NULL. */
|
|
hb_color_t *colors /* OUT. May be NULL. */);
|
|
|
|
|
|
/*
|
|
* Color layers.
|
|
*/
|
|
|
|
HB_EXTERN hb_bool_t
|
|
hb_ot_color_has_layers (hb_face_t *face);
|
|
|
|
/**
|
|
* hb_ot_color_layer_t:
|
|
*
|
|
* Pairs of glyph and color index.
|
|
*
|
|
* Since: 2.1.0
|
|
**/
|
|
typedef struct hb_ot_color_layer_t
|
|
{
|
|
hb_codepoint_t glyph;
|
|
unsigned int color_index;
|
|
} hb_ot_color_layer_t;
|
|
|
|
HB_EXTERN unsigned int
|
|
hb_ot_color_glyph_get_layers (hb_face_t *face,
|
|
hb_codepoint_t glyph,
|
|
unsigned int start_offset,
|
|
unsigned int *layer_count, /* IN/OUT. May be NULL. */
|
|
hb_ot_color_layer_t *layers /* OUT. May be NULL. */);
|
|
|
|
/*
|
|
* SVG
|
|
*/
|
|
|
|
HB_EXTERN hb_bool_t
|
|
hb_ot_color_has_svg (hb_face_t *face);
|
|
|
|
HB_EXTERN hb_blob_t *
|
|
hb_ot_color_glyph_reference_svg (hb_face_t *face, hb_codepoint_t glyph);
|
|
|
|
/*
|
|
* PNG: CBDT or sbix
|
|
*/
|
|
|
|
HB_EXTERN hb_bool_t
|
|
hb_ot_color_has_png (hb_face_t *face);
|
|
|
|
HB_EXTERN hb_blob_t *
|
|
hb_ot_color_glyph_reference_png (hb_font_t *font, hb_codepoint_t glyph);
|
|
|
|
|
|
HB_END_DECLS
|
|
|
|
#endif /* HB_OT_COLOR_H */
|