/*
- * Copyright (C) 1998-2004 David Turner and Werner Lemberg
- * Copyright (C) 2006 Behdad Esfahbod
- * Copyright (C) 2007,2008,2009 Red Hat, Inc.
+ * Copyright © 1998-2004 David Turner and Werner Lemberg
+ * Copyright © 2006 Behdad Esfahbod
+ * Copyright © 2007,2008,2009 Red Hat, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
#include "hb-ot-layout-gdef-private.hh"
#include "hb-ot-layout-gsub-private.hh"
#include "hb-ot-layout-gpos-private.hh"
+#include "hb-ot-head-private.hh"
+#include "hb-ot-maxp-private.hh"
#include <stdlib.h>
hb_ot_layout_t *
-_hb_ot_layout_new (hb_face_t *face)
+_hb_ot_layout_create (hb_face_t *face)
{
- /* Remove this object altogether */
+ /* TODO Remove this object altogether */
hb_ot_layout_t *layout = (hb_ot_layout_t *) calloc (1, sizeof (hb_ot_layout_t));
- layout->gdef_blob = Sanitizer<GDEF>::sanitize (hb_face_get_table (face, HB_OT_TAG_GDEF));
+ layout->gdef_blob = Sanitizer<GDEF>::sanitize (hb_face_reference_table (face, HB_OT_TAG_GDEF));
layout->gdef = Sanitizer<GDEF>::lock_instance (layout->gdef_blob);
- layout->gsub_blob = Sanitizer<GSUB>::sanitize (hb_face_get_table (face, HB_OT_TAG_GSUB));
+ layout->gsub_blob = Sanitizer<GSUB>::sanitize (hb_face_reference_table (face, HB_OT_TAG_GSUB));
layout->gsub = Sanitizer<GSUB>::lock_instance (layout->gsub_blob);
- layout->gpos_blob = Sanitizer<GPOS>::sanitize (hb_face_get_table (face, HB_OT_TAG_GPOS));
+ layout->gpos_blob = Sanitizer<GPOS>::sanitize (hb_face_reference_table (face, HB_OT_TAG_GPOS));
layout->gpos = Sanitizer<GPOS>::lock_instance (layout->gpos_blob);
+ layout->head_blob = Sanitizer<head>::sanitize (hb_face_reference_table (face, HB_OT_TAG_head));
+ layout->head = Sanitizer<head>::lock_instance (layout->head_blob);
+
return layout;
}
void
-_hb_ot_layout_free (hb_ot_layout_t *layout)
+_hb_ot_layout_destroy (hb_ot_layout_t *layout)
{
- hb_blob_unlock (layout->gdef_blob);
- hb_blob_unlock (layout->gsub_blob);
- hb_blob_unlock (layout->gpos_blob);
-
hb_blob_destroy (layout->gdef_blob);
hb_blob_destroy (layout->gsub_blob);
hb_blob_destroy (layout->gpos_blob);
+ hb_blob_destroy (layout->head_blob);
free (layout);
}
-static const GDEF&
+static inline const GDEF&
_get_gdef (hb_face_t *face)
{
return likely (face->ot_layout && face->ot_layout->gdef) ? *face->ot_layout->gdef : Null(GDEF);
}
-
-static const GSUB&
+static inline const GSUB&
_get_gsub (hb_face_t *face)
{
return likely (face->ot_layout && face->ot_layout->gsub) ? *face->ot_layout->gsub : Null(GSUB);
}
-
-static const GPOS&
+static inline const GPOS&
_get_gpos (hb_face_t *face)
{
return likely (face->ot_layout && face->ot_layout->gpos) ? *face->ot_layout->gpos : Null(GPOS);
}
+static inline const head&
+_get_head (hb_face_t *face)
+{
+ return likely (face->ot_layout && face->ot_layout->head) ? *face->ot_layout->head : Null(head);
+}
/*
return _get_gdef (face).has_glyph_classes ();
}
-static unsigned int
-_hb_ot_layout_get_glyph_property_from_gdef (hb_face_t *face,
- hb_glyph_info_t *info)
-{
- hb_codepoint_t glyph = info->codepoint;
-
- unsigned int klass;
- const GDEF &gdef = _get_gdef (face);
-
- klass = gdef.get_glyph_class (glyph);
-
- switch (klass) {
- default:
- case GDEF::UnclassifiedGlyph: return HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED;
- case GDEF::BaseGlyph: return HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH;
- case GDEF::LigatureGlyph: return HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE;
- case GDEF::ComponentGlyph: return HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT;
- case GDEF::MarkGlyph:
- klass = gdef.get_mark_attachment_type (glyph);
- return HB_OT_LAYOUT_GLYPH_CLASS_MARK | (klass << 8);
- }
-}
-
-static inline unsigned int
+unsigned int
_hb_ot_layout_get_glyph_property (hb_face_t *face,
hb_glyph_info_t *info)
{
- if (!info->gproperty())
- info->gproperty() = _hb_ot_layout_get_glyph_property_from_gdef (face, info);
+ if (!info->props_cache())
+ {
+ const GDEF &gdef = _get_gdef (face);
+ info->props_cache() = gdef.get_glyph_props (info->codepoint);
+ }
- return info->gproperty();
+ return info->props_cache();
}
-hb_bool_t
-_hb_ot_layout_check_glyph_property (hb_face_t *face,
- hb_glyph_info_t *ginfo,
- unsigned int lookup_props,
- unsigned int *property_out)
+static hb_bool_t
+_hb_ot_layout_match_properties (hb_face_t *face,
+ hb_codepoint_t codepoint,
+ unsigned int glyph_props,
+ unsigned int lookup_props)
{
- unsigned int property;
-
- property = _hb_ot_layout_get_glyph_property (face, ginfo);
- if (property_out)
- *property_out = property;
-
/* Not covered, if, for example, glyph class is ligature and
* lookup_props includes LookupFlags::IgnoreLigatures
*/
- if (property & lookup_props & LookupFlag::IgnoreFlags)
+ if (glyph_props & lookup_props & LookupFlag::IgnoreFlags)
return false;
- if (property & HB_OT_LAYOUT_GLYPH_CLASS_MARK)
+ if (glyph_props & HB_OT_LAYOUT_GLYPH_CLASS_MARK)
{
/* If using mark filtering sets, the high short of
* lookup_props has the set index.
*/
if (lookup_props & LookupFlag::UseMarkFilteringSet)
- return _get_gdef (face).mark_set_covers (lookup_props >> 16, ginfo->codepoint);
+ return _get_gdef (face).mark_set_covers (lookup_props >> 16, codepoint);
/* The second byte of lookup_props has the meaning
* "ignore marks of attachment type different than
* the attachment type specified."
*/
- if (lookup_props & LookupFlag::MarkAttachmentType && property & LookupFlag::MarkAttachmentType)
- return (lookup_props & LookupFlag::MarkAttachmentType) == (property & LookupFlag::MarkAttachmentType);
+ if (lookup_props & LookupFlag::MarkAttachmentType && glyph_props & LookupFlag::MarkAttachmentType)
+ return (lookup_props & LookupFlag::MarkAttachmentType) == (glyph_props & LookupFlag::MarkAttachmentType);
}
return true;
}
hb_bool_t
+_hb_ot_layout_check_glyph_property (hb_face_t *face,
+ hb_glyph_info_t *ginfo,
+ unsigned int lookup_props,
+ unsigned int *property_out)
+{
+ unsigned int property;
+
+ property = _hb_ot_layout_get_glyph_property (face, ginfo);
+ (void) (property_out && (*property_out = property));
+
+ return _hb_ot_layout_match_properties (face, ginfo->codepoint, property, lookup_props);
+}
+
+hb_bool_t
_hb_ot_layout_skip_mark (hb_face_t *face,
hb_glyph_info_t *ginfo,
unsigned int lookup_props,
unsigned int property;
property = _hb_ot_layout_get_glyph_property (face, ginfo);
- if (property_out)
- *property_out = property;
+ (void) (property_out && (*property_out = property));
- if (property & HB_OT_LAYOUT_GLYPH_CLASS_MARK)
- {
- /* Skip mark if lookup_props includes LookupFlags::IgnoreMarks */
- if (lookup_props & LookupFlag::IgnoreMarks)
- return true;
-
- /* If using mark filtering sets, the high short of lookup_props has the set index. */
- if (lookup_props & LookupFlag::UseMarkFilteringSet)
- return !_get_gdef (face).mark_set_covers (lookup_props >> 16, ginfo->codepoint);
-
- /* The second byte of lookup_props has the meaning "ignore marks of attachment type
- * different than the attachment type specified." */
- if (lookup_props & LookupFlag::MarkAttachmentType && property & LookupFlag::MarkAttachmentType)
- return (lookup_props & LookupFlag::MarkAttachmentType) != (property & LookupFlag::MarkAttachmentType);
- }
+ /* If it's a mark, skip it we don't accept it. */
+ if (unlikely (property & HB_OT_LAYOUT_GLYPH_CLASS_MARK))
+ return !_hb_ot_layout_match_properties (face, ginfo->codepoint, property, lookup_props);
+ /* If not a mark, don't skip. */
return false;
}
+
+
unsigned int
hb_ot_layout_get_attach_points (hb_face_t *face,
hb_codepoint_t glyph,
unsigned int
hb_ot_layout_get_ligature_carets (hb_font_t *font,
- hb_face_t *face,
hb_direction_t direction,
hb_codepoint_t glyph,
unsigned int start_offset,
unsigned int *caret_count /* IN/OUT */,
int *caret_array /* OUT */)
{
- hb_ot_layout_context_t c;
- c.font = font;
- c.face = face;
- return _get_gdef (face).get_lig_carets (&c, direction, glyph, start_offset, caret_count, caret_array);
+ return _get_gdef (font->face).get_lig_carets (font, direction, glyph, start_offset, caret_count, caret_array);
}
/*
return &_get_gsub (face) != &Null(GSUB);
}
+void
+hb_ot_layout_substitute_start (hb_buffer_t *buffer)
+{
+ unsigned int count = buffer->len;
+ for (unsigned int i = 0; i < count; i++)
+ buffer->info[i].var1.u32 = buffer->info[i].var2.u32 = 0;
+}
+
hb_bool_t
hb_ot_layout_substitute_lookup (hb_face_t *face,
hb_buffer_t *buffer,
unsigned int lookup_index,
hb_mask_t mask)
{
- hb_ot_layout_context_t c;
- c.font = NULL;
- c.face = face;
- return _get_gsub (face).substitute_lookup (&c, buffer, lookup_index, mask);
+ return _get_gsub (face).substitute_lookup (face, buffer, lookup_index, mask);
+}
+
+void
+hb_ot_layout_substitute_finish (hb_buffer_t *buffer HB_UNUSED)
+{
}
return &_get_gpos (face) != &Null(GPOS);
}
+void
+hb_ot_layout_position_start (hb_buffer_t *buffer)
+{
+ buffer->clear_positions ();
+}
+
hb_bool_t
hb_ot_layout_position_lookup (hb_font_t *font,
- hb_face_t *face,
hb_buffer_t *buffer,
unsigned int lookup_index,
hb_mask_t mask)
{
- hb_ot_layout_context_t c;
- c.font = font;
- c.face = face;
- return _get_gpos (face).position_lookup (&c, buffer, lookup_index, mask);
+ return _get_gpos (font->face).position_lookup (font, buffer, lookup_index, mask);
}
void
-hb_ot_layout_position_finish (hb_font_t *font HB_UNUSED,
- hb_face_t *face HB_UNUSED,
- hb_buffer_t *buffer)
+hb_ot_layout_position_finish (hb_buffer_t *buffer)
{
- unsigned int i, j;
- unsigned int len = hb_buffer_get_length (buffer);
- hb_glyph_position_t *pos = hb_buffer_get_glyph_positions (buffer);
- hb_direction_t direction = buffer->props.direction;
+ GPOS::position_finish (buffer);
+}
- /* TODO: Vertical */
-
- /* Handle cursive connections:
- * First handle all chain-back connections, then handle all chain-forward connections. */
- if (likely (HB_DIRECTION_IS_HORIZONTAL (direction)))
- {
- for (j = 0; j < len; j++) {
- if (pos[j].cursive_chain() < 0)
- pos[j].y_offset += pos[j + pos[j].cursive_chain()].y_offset;
- }
- for (i = len; i > 0; i--) {
- j = i - 1;
- if (pos[j].cursive_chain() > 0)
- pos[j].y_offset += pos[j + pos[j].cursive_chain()].y_offset;
- }
- }
- else
- {
- for (j = 0; j < len; j++) {
- if (pos[j].cursive_chain() < 0)
- pos[j].x_offset += pos[j + pos[j].cursive_chain()].x_offset;
- }
- for (i = len; i > 0; i--) {
- j = i - 1;
- if (pos[j].cursive_chain() > 0)
- pos[j].x_offset += pos[j + pos[j].cursive_chain()].x_offset;
- }
- }
+/*
+ * head
+ */
- /* Handle attachments */
- for (i = 0; i < len; i++)
- if (pos[i].back())
- {
- unsigned int back = i - pos[i].back();
- pos[i].x_offset += pos[back].x_offset;
- pos[i].y_offset += pos[back].y_offset;
-
- if (HB_DIRECTION_IS_BACKWARD (buffer->props.direction))
- for (j = back + 1; j < i + 1; j++) {
- pos[i].x_offset += pos[j].x_advance;
- pos[i].y_offset += pos[j].y_advance;
- }
- else
- for (j = back; j < i; j++) {
- pos[i].x_offset -= pos[j].x_advance;
- pos[i].y_offset -= pos[j].y_advance;
- }
- }
+unsigned int
+_hb_ot_layout_get_upem (hb_face_t *face)
+{
+ return _get_head (face).get_upem ();
}
projects / framework / uifw / harfbuzz.git / blobdiff