diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-buffer.h')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-buffer.h | 67 |
1 files changed, 63 insertions, 4 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-buffer.h b/src/3rdparty/harfbuzz-ng/src/hb-buffer.h index bf289c19b3..a8a4b84e97 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-buffer.h +++ b/src/3rdparty/harfbuzz-ng/src/hb-buffer.h @@ -63,7 +63,7 @@ HB_BEGIN_DECLS */ typedef struct hb_glyph_info_t { hb_codepoint_t codepoint; - hb_mask_t mask; + hb_mask_t mask; /* Holds hb_glyph_flags_t after hb_shape(), plus other things. */ uint32_t cluster; /*< private >*/ @@ -71,6 +71,19 @@ typedef struct hb_glyph_info_t { hb_var_int_t var2; } hb_glyph_info_t; +typedef enum { /*< flags >*/ + HB_GLYPH_FLAG_UNSAFE_TO_BREAK = 0x00000001, + + HB_GLYPH_FLAG_DEFINED = 0x00000001 /* OR of all defined flags */ +} hb_glyph_flags_t; + +HB_EXTERN hb_glyph_flags_t +hb_glyph_info_get_glyph_flags (const hb_glyph_info_t *info); + +#define hb_glyph_info_get_glyph_flags(info) \ + ((hb_glyph_flags_t) ((unsigned int) (info)->mask & HB_GLYPH_FLAG_DEFINED)) + + /** * hb_glyph_position_t: * @x_advance: how much the line advances after drawing this glyph when setting @@ -119,8 +132,8 @@ typedef struct hb_segment_properties_t { #define HB_SEGMENT_PROPERTIES_DEFAULT {HB_DIRECTION_INVALID, \ HB_SCRIPT_INVALID, \ HB_LANGUAGE_INVALID, \ - NULL, \ - NULL} + (void *) 0, \ + (void *) 0} HB_EXTERN hb_bool_t hb_segment_properties_equal (const hb_segment_properties_t *a, @@ -163,6 +176,7 @@ HB_EXTERN void * hb_buffer_get_user_data (hb_buffer_t *buffer, hb_user_data_key_t *key); + /** * hb_buffer_content_type_t: * @HB_BUFFER_CONTENT_TYPE_INVALID: Initial value for new buffer. @@ -359,6 +373,11 @@ hb_buffer_add_codepoints (hb_buffer_t *buffer, unsigned int item_offset, int item_length); +HB_EXTERN void +hb_buffer_append (hb_buffer_t *buffer, + hb_buffer_t *source, + unsigned int start, + unsigned int end); HB_EXTERN hb_bool_t hb_buffer_set_length (hb_buffer_t *buffer, @@ -403,7 +422,8 @@ typedef enum { /*< flags >*/ HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS = 0x00000001u, HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS = 0x00000002u, HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES = 0x00000004u, - HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS = 0x00000008u + HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS = 0x00000008u, + HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS = 0x00000010u } hb_buffer_serialize_flags_t; /** @@ -453,6 +473,45 @@ hb_buffer_deserialize_glyphs (hb_buffer_t *buffer, /* + * Compare buffers + */ + +typedef enum { /*< flags >*/ + HB_BUFFER_DIFF_FLAG_EQUAL = 0x0000, + + /* Buffers with different content_type cannot be meaningfully compared + * in any further detail. */ + HB_BUFFER_DIFF_FLAG_CONTENT_TYPE_MISMATCH = 0x0001, + + /* For buffers with differing length, the per-glyph comparison is not + * attempted, though we do still scan reference for dottedcircle / .notdef + * glyphs. */ + HB_BUFFER_DIFF_FLAG_LENGTH_MISMATCH = 0x0002, + + /* We want to know if dottedcircle / .notdef glyphs are present in the + * reference, as we may not care so much about other differences in this + * case. */ + HB_BUFFER_DIFF_FLAG_NOTDEF_PRESENT = 0x0004, + HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT = 0x0008, + + /* If the buffers have the same length, we compare them glyph-by-glyph + * and report which aspect(s) of the glyph info/position are different. */ + HB_BUFFER_DIFF_FLAG_CODEPOINT_MISMATCH = 0x0010, + HB_BUFFER_DIFF_FLAG_CLUSTER_MISMATCH = 0x0020, + HB_BUFFER_DIFF_FLAG_GLYPH_FLAGS_MISMATCH = 0x0040, + HB_BUFFER_DIFF_FLAG_POSITION_MISMATCH = 0x0080 + +} hb_buffer_diff_flags_t; + +/* Compare the contents of two buffers, report types of differences. */ +HB_EXTERN hb_buffer_diff_flags_t +hb_buffer_diff (hb_buffer_t *buffer, + hb_buffer_t *reference, + hb_codepoint_t dottedcircle_glyph, + unsigned int position_fuzz); + + +/* * Debugging. */ |