* Google Author(s): Behdad Esfahbod, Roozbeh Pournader
*/
-#include "hb-private.hh"
+#include "hb.hh"
#include "hb-ot.h"
-#include "hb-font-private.hh"
+#include "hb-font.hh"
+#include "hb-machinery.hh"
+#include "hb-ot-face.hh"
#include "hb-ot-cmap-table.hh"
#include "hb-ot-glyf-table.hh"
+#include "hb-ot-cff1-table.hh"
+#include "hb-ot-cff2-table.hh"
#include "hb-ot-hmtx-table.hh"
#include "hb-ot-kern-table.hh"
+#include "hb-ot-os2-table.hh"
#include "hb-ot-post-table.hh"
-
+#include "hb-ot-stat-table.hh" // Just so we compile it; unused otherwise.
+#include "hb-ot-vorg-table.hh"
#include "hb-ot-color-cbdt-table.hh"
+#include "hb-ot-color-sbix-table.hh"
-struct hb_ot_font_t
-{
- OT::cmap::accelerator_t cmap;
- OT::hmtx::accelerator_t h_metrics;
- OT::vmtx::accelerator_t v_metrics;
- OT::hb_lazy_loader_t<OT::glyf::accelerator_t> glyf;
- OT::hb_lazy_loader_t<OT::CBDT::accelerator_t> cbdt;
- OT::hb_lazy_loader_t<OT::post::accelerator_t> post;
- OT::hb_lazy_loader_t<OT::kern::accelerator_t> kern;
-};
-
-
-static hb_ot_font_t *
-_hb_ot_font_create (hb_face_t *face)
-{
- hb_ot_font_t *ot_font = (hb_ot_font_t *) calloc (1, sizeof (hb_ot_font_t));
-
- if (unlikely (!ot_font))
- return nullptr;
-
- ot_font->cmap.init (face);
- ot_font->h_metrics.init (face);
- ot_font->v_metrics.init (face, ot_font->h_metrics.ascender - ot_font->h_metrics.descender); /* TODO Can we do this lazily? */
- ot_font->glyf.init (face);
- ot_font->cbdt.init (face);
- ot_font->post.init (face);
- ot_font->kern.init (face);
-
- return ot_font;
-}
-
-static void
-_hb_ot_font_destroy (void *data)
-{
- hb_ot_font_t *ot_font = (hb_ot_font_t *) data;
-
- ot_font->cmap.fini ();
- ot_font->h_metrics.fini ();
- ot_font->v_metrics.fini ();
- ot_font->glyf.fini ();
- ot_font->cbdt.fini ();
- ot_font->post.fini ();
- ot_font->kern.fini ();
-
- free (ot_font);
-}
+/**
+ * SECTION:hb-ot-font
+ * @title: hb-ot-font
+ * @short_description: OpenType font implementation
+ * @include: hb-ot.h
+ *
+ * Functions for using OpenType fonts with hb_shape(). Not that fonts returned
+ * by hb_font_create() default to using these functions, so most clients would
+ * never need to call these functions directly.
+ **/
static hb_bool_t
hb_codepoint_t unicode,
hb_codepoint_t *glyph,
void *user_data HB_UNUSED)
+{
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ return ot_face->cmap->get_nominal_glyph (unicode, glyph);
+}
+static unsigned int
+hb_ot_get_nominal_glyphs (hb_font_t *font HB_UNUSED,
+ void *font_data,
+ unsigned int count,
+ const hb_codepoint_t *first_unicode,
+ unsigned int unicode_stride,
+ hb_codepoint_t *first_glyph,
+ unsigned int glyph_stride,
+ void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- return ot_font->cmap.get_nominal_glyph (unicode, glyph);
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ return ot_face->cmap->get_nominal_glyphs (count,
+ first_unicode, unicode_stride,
+ first_glyph, glyph_stride);
}
static hb_bool_t
hb_codepoint_t *glyph,
void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- return ot_font->cmap.get_variation_glyph (unicode, variation_selector, glyph);
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ return ot_face->cmap->get_variation_glyph (unicode, variation_selector, glyph);
}
-static hb_position_t
-hb_ot_get_glyph_h_advance (hb_font_t *font,
- void *font_data,
- hb_codepoint_t glyph,
- void *user_data HB_UNUSED)
+static void
+hb_ot_get_glyph_h_advances (hb_font_t* font, void* font_data,
+ unsigned count,
+ const hb_codepoint_t *first_glyph,
+ unsigned glyph_stride,
+ hb_position_t *first_advance,
+ unsigned advance_stride,
+ void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- return font->em_scale_x (ot_font->h_metrics.get_advance (glyph, font));
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ const OT::hmtx_accelerator_t &hmtx = *ot_face->hmtx;
+
+ for (unsigned int i = 0; i < count; i++)
+ {
+ *first_advance = font->em_scale_x (hmtx.get_advance (*first_glyph, font));
+ first_glyph = &StructAtOffsetUnaligned<hb_codepoint_t> (first_glyph, glyph_stride);
+ first_advance = &StructAtOffsetUnaligned<hb_position_t> (first_advance, advance_stride);
+ }
}
-static hb_position_t
-hb_ot_get_glyph_v_advance (hb_font_t *font,
- void *font_data,
- hb_codepoint_t glyph,
- void *user_data HB_UNUSED)
+static void
+hb_ot_get_glyph_v_advances (hb_font_t* font, void* font_data,
+ unsigned count,
+ const hb_codepoint_t *first_glyph,
+ unsigned glyph_stride,
+ hb_position_t *first_advance,
+ unsigned advance_stride,
+ void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- return font->em_scale_y (-(int) ot_font->v_metrics.get_advance (glyph, font));
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ const OT::vmtx_accelerator_t &vmtx = *ot_face->vmtx;
+
+ for (unsigned int i = 0; i < count; i++)
+ {
+ *first_advance = font->em_scale_y (-(int) vmtx.get_advance (*first_glyph, font));
+ first_glyph = &StructAtOffsetUnaligned<hb_codepoint_t> (first_glyph, glyph_stride);
+ first_advance = &StructAtOffsetUnaligned<hb_position_t> (first_advance, advance_stride);
+ }
}
-static hb_position_t
-hb_ot_get_glyph_h_kerning (hb_font_t *font,
- void *font_data,
- hb_codepoint_t left_glyph,
- hb_codepoint_t right_glyph,
- void *user_data HB_UNUSED)
+static hb_bool_t
+hb_ot_get_glyph_v_origin (hb_font_t *font,
+ void *font_data,
+ hb_codepoint_t glyph,
+ hb_position_t *x,
+ hb_position_t *y,
+ void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- return font->em_scale_x (ot_font->kern->get_h_kerning (left_glyph, right_glyph));
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+
+ *x = font->get_glyph_h_advance (glyph) / 2;
+
+ const OT::VORG &VORG = *ot_face->VORG;
+ if (VORG.has_data ())
+ {
+ *y = font->em_scale_y (VORG.get_y_origin (glyph));
+ return true;
+ }
+
+ hb_glyph_extents_t extents = {0};
+ if (ot_face->glyf->get_extents (glyph, &extents))
+ {
+ const OT::vmtx_accelerator_t &vmtx = *ot_face->vmtx;
+ hb_position_t tsb = vmtx.get_side_bearing (glyph);
+ *y = font->em_scale_y (extents.y_bearing + tsb);
+ return true;
+ }
+
+ hb_font_extents_t font_extents;
+ font->get_h_extents_with_fallback (&font_extents);
+ *y = font_extents.ascender;
+
+ return true;
}
static hb_bool_t
hb_glyph_extents_t *extents,
void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- bool ret = ot_font->glyf->get_extents (glyph, extents);
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ bool ret = ot_face->sbix->get_extents (font, glyph, extents);
+ if (!ret)
+ ret = ot_face->glyf->get_extents (glyph, extents);
+ if (!ret)
+ ret = ot_face->cff1->get_extents (glyph, extents);
+ if (!ret)
+ ret = ot_face->cff2->get_extents (font, glyph, extents);
if (!ret)
- ret = ot_font->cbdt->get_extents (glyph, extents);
+ ret = ot_face->CBDT->get_extents (font, glyph, extents);
// TODO Hook up side-bearings variations.
extents->x_bearing = font->em_scale_x (extents->x_bearing);
extents->y_bearing = font->em_scale_y (extents->y_bearing);
char *name, unsigned int size,
void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- return ot_font->post->get_glyph_name (glyph, name, size);
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ return ot_face->post->get_glyph_name (glyph, name, size);
}
static hb_bool_t
hb_codepoint_t *glyph,
void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- return ot_font->post->get_glyph_from_name (name, len, glyph);
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ return ot_face->post->get_glyph_from_name (name, len, glyph);
}
static hb_bool_t
hb_font_extents_t *metrics,
void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- metrics->ascender = font->em_scale_y (ot_font->h_metrics.ascender);
- metrics->descender = font->em_scale_y (ot_font->h_metrics.descender);
- metrics->line_gap = font->em_scale_y (ot_font->h_metrics.line_gap);
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ const OT::hmtx_accelerator_t &hmtx = *ot_face->hmtx;
+ metrics->ascender = font->em_scale_y (hmtx.ascender);
+ metrics->descender = font->em_scale_y (hmtx.descender);
+ metrics->line_gap = font->em_scale_y (hmtx.line_gap);
// TODO Hook up variations.
- return ot_font->h_metrics.has_font_extents;
+ return hmtx.has_font_extents;
}
static hb_bool_t
hb_font_extents_t *metrics,
void *user_data HB_UNUSED)
{
- const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
- metrics->ascender = font->em_scale_x (ot_font->v_metrics.ascender);
- metrics->descender = font->em_scale_x (ot_font->v_metrics.descender);
- metrics->line_gap = font->em_scale_x (ot_font->v_metrics.line_gap);
+ const hb_ot_face_t *ot_face = (const hb_ot_face_t *) font_data;
+ const OT::vmtx_accelerator_t &vmtx = *ot_face->vmtx;
+ metrics->ascender = font->em_scale_x (vmtx.ascender);
+ metrics->descender = font->em_scale_x (vmtx.descender);
+ metrics->line_gap = font->em_scale_x (vmtx.line_gap);
// TODO Hook up variations.
- return ot_font->v_metrics.has_font_extents;
+ return vmtx.has_font_extents;
}
-static hb_font_funcs_t *static_ot_funcs = nullptr;
-
-#ifdef HB_USE_ATEXIT
-static
-void free_static_ot_funcs (void)
-{
-retry:
- hb_font_funcs_t *ot_funcs = (hb_font_funcs_t *) hb_atomic_ptr_get (&static_ot_funcs);
- if (!hb_atomic_ptr_cmpexch (&static_ot_funcs, ot_funcs, nullptr))
- goto retry;
-
- hb_font_funcs_destroy (ot_funcs);
-}
+#if HB_USE_ATEXIT
+static void free_static_ot_funcs ();
#endif
-static hb_font_funcs_t *
-_hb_ot_get_font_funcs (void)
+static struct hb_ot_font_funcs_lazy_loader_t : hb_font_funcs_lazy_loader_t<hb_ot_font_funcs_lazy_loader_t>
{
-retry:
- hb_font_funcs_t *funcs = (hb_font_funcs_t *) hb_atomic_ptr_get (&static_ot_funcs);
-
- if (unlikely (!funcs))
+ static hb_font_funcs_t *create ()
{
- funcs = hb_font_funcs_create ();
+ hb_font_funcs_t *funcs = hb_font_funcs_create ();
hb_font_funcs_set_font_h_extents_func (funcs, hb_ot_get_font_h_extents, nullptr, nullptr);
hb_font_funcs_set_font_v_extents_func (funcs, hb_ot_get_font_v_extents, nullptr, nullptr);
hb_font_funcs_set_nominal_glyph_func (funcs, hb_ot_get_nominal_glyph, nullptr, nullptr);
+ hb_font_funcs_set_nominal_glyphs_func (funcs, hb_ot_get_nominal_glyphs, nullptr, nullptr);
hb_font_funcs_set_variation_glyph_func (funcs, hb_ot_get_variation_glyph, nullptr, nullptr);
- hb_font_funcs_set_glyph_h_advance_func (funcs, hb_ot_get_glyph_h_advance, nullptr, nullptr);
- hb_font_funcs_set_glyph_v_advance_func (funcs, hb_ot_get_glyph_v_advance, nullptr, nullptr);
+ hb_font_funcs_set_glyph_h_advances_func (funcs, hb_ot_get_glyph_h_advances, nullptr, nullptr);
+ hb_font_funcs_set_glyph_v_advances_func (funcs, hb_ot_get_glyph_v_advances, nullptr, nullptr);
//hb_font_funcs_set_glyph_h_origin_func (funcs, hb_ot_get_glyph_h_origin, nullptr, nullptr);
- //hb_font_funcs_set_glyph_v_origin_func (funcs, hb_ot_get_glyph_v_origin, nullptr, nullptr);
- hb_font_funcs_set_glyph_h_kerning_func (funcs, hb_ot_get_glyph_h_kerning, nullptr, nullptr);
- //hb_font_funcs_set_glyph_v_kerning_func (funcs, hb_ot_get_glyph_v_kerning, nullptr, nullptr);
+ hb_font_funcs_set_glyph_v_origin_func (funcs, hb_ot_get_glyph_v_origin, nullptr, nullptr);
hb_font_funcs_set_glyph_extents_func (funcs, hb_ot_get_glyph_extents, nullptr, nullptr);
//hb_font_funcs_set_glyph_contour_point_func (funcs, hb_ot_get_glyph_contour_point, nullptr, nullptr);
hb_font_funcs_set_glyph_name_func (funcs, hb_ot_get_glyph_name, nullptr, nullptr);
hb_font_funcs_make_immutable (funcs);
- if (!hb_atomic_ptr_cmpexch (&static_ot_funcs, nullptr, funcs)) {
- hb_font_funcs_destroy (funcs);
- goto retry;
- }
+#if HB_USE_ATEXIT
+ atexit (free_static_ot_funcs);
+#endif
-#ifdef HB_USE_ATEXIT
- atexit (free_static_ot_funcs); /* First person registers atexit() callback. */
+ return funcs;
+ }
+} static_ot_funcs;
+
+#if HB_USE_ATEXIT
+static
+void free_static_ot_funcs ()
+{
+ static_ot_funcs.free_instance ();
+}
#endif
- };
- return funcs;
+static hb_font_funcs_t *
+_hb_ot_get_font_funcs ()
+{
+ return static_ot_funcs.get_unconst ();
}
void
hb_ot_font_set_funcs (hb_font_t *font)
{
- hb_ot_font_t *ot_font = _hb_ot_font_create (font->face);
- if (unlikely (!ot_font))
- return;
-
hb_font_set_funcs (font,
_hb_ot_get_font_funcs (),
- ot_font,
- _hb_ot_font_destroy);
+ &font->face->table,
+ nullptr);
}
projects / platform / upstream / harfbuzz.git / blobdiff