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Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-color.h')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-ot-color.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-color.h b/src/3rdparty/harfbuzz-ng/src/hb-ot-color.h new file mode 100644 index 0000000000..22ee497e38 --- /dev/null +++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-color.h @@ -0,0 +1,155 @@ +/* + * 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. */); + +/* COLRv1 */ + +HB_EXTERN hb_bool_t +hb_ot_color_has_paint (hb_face_t *face); + +HB_EXTERN hb_bool_t +hb_ot_color_glyph_has_paint (hb_face_t *face, + hb_codepoint_t glyph); + +/* + * 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 */ |