| /* |
| * 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 |
| */ |
| |
| #if !defined(HB_OT_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR) |
| #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. |
| * |
| * Flags that describe the properties of color palette. |
| * |
| * 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: |
| * @glyph: the glyph ID of the layer |
| * @color_index: the palette color index of the layer |
| * |
| * Pairs of glyph and color index. |
| * |
| * A color index of 0xFFFF does not refer to a palette |
| * color, but indicates that the foreground color should |
| * be used. |
| * |
| * 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 */ |