[OT] More code shuffling around
Preparing for merging map_glyphs() and normalize().
This commit is contained in:
Behdad Esfahbod
parent
cd0c6e148f
commit
5c60b70c89
@ -217,34 +217,13 @@ struct hb_ot_shape_context_t
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/* Transient stuff */
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hb_direction_t target_direction;
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hb_bool_t applied_position_complex;
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};
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static void
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hb_ot_shape_setup_masks (hb_ot_shape_context_t *c)
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{
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hb_ot_map_t *map = &c->plan->map;
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hb_mask_t global_mask = map->get_global_mask ();
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c->buffer->reset_masks (global_mask);
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if (c->plan->shaper->setup_masks)
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c->plan->shaper->setup_masks (c->plan, c->buffer, c->font);
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for (unsigned int i = 0; i < c->num_user_features; i++)
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{
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const hb_feature_t *feature = &c->user_features[i];
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if (!(feature->start == 0 && feature->end == (unsigned int)-1)) {
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unsigned int shift;
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hb_mask_t mask = map->get_mask (feature->tag, &shift);
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c->buffer->set_masks (feature->value << shift, mask, feature->start, feature->end);
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}
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}
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}
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/* Main shaper */
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/* Prepare */
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static void
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@ -287,14 +266,13 @@ hb_ensure_native_direction (hb_buffer_t *buffer)
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/* Substitute */
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static void
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hb_mirror_chars (hb_ot_shape_context_t *c)
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static inline void
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hb_ot_mirror_chars (hb_ot_shape_context_t *c)
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{
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hb_unicode_funcs_t *unicode = c->buffer->unicode;
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if (HB_DIRECTION_IS_FORWARD (c->target_direction))
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return;
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hb_unicode_funcs_t *unicode = c->buffer->unicode;
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hb_mask_t rtlm_mask = c->plan->map.get_1_mask (HB_TAG ('r','t','l','m'));
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unsigned int count = c->buffer->len;
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@ -307,9 +285,31 @@ hb_mirror_chars (hb_ot_shape_context_t *c)
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}
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}
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static void
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hb_map_glyphs (hb_font_t *font,
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hb_buffer_t *buffer)
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static inline void
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hb_ot_shape_setup_masks (hb_ot_shape_context_t *c)
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{
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hb_ot_map_t *map = &c->plan->map;
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hb_mask_t global_mask = map->get_global_mask ();
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c->buffer->reset_masks (global_mask);
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if (c->plan->shaper->setup_masks)
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c->plan->shaper->setup_masks (c->plan, c->buffer, c->font);
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for (unsigned int i = 0; i < c->num_user_features; i++)
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{
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const hb_feature_t *feature = &c->user_features[i];
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if (!(feature->start == 0 && feature->end == (unsigned int)-1)) {
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unsigned int shift;
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hb_mask_t mask = map->get_mask (feature->tag, &shift);
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c->buffer->set_masks (feature->value << shift, mask, feature->start, feature->end);
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}
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}
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}
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static inline void
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hb_ot_map_glyphs (hb_font_t *font,
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hb_buffer_t *buffer)
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{
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hb_codepoint_t glyph;
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@ -335,15 +335,22 @@ hb_map_glyphs (hb_font_t *font,
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buffer->swap_buffers ();
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}
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static void
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hb_substitute_default (hb_ot_shape_context_t *c)
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static inline void
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hb_ot_substitute_default (hb_ot_shape_context_t *c)
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{
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hb_mirror_chars (c);
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hb_ot_mirror_chars (c);
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hb_map_glyphs (c->font, c->buffer);
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_hb_ot_shape_normalize (c->font, c->buffer,
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c->plan->shaper->normalization_preference ?
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c->plan->shaper->normalization_preference (c->plan) :
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HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT);
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hb_ot_shape_setup_masks (c);
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hb_ot_map_glyphs (c->font, c->buffer);
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}
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static void
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static inline void
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hb_synthesize_glyph_classes (hb_ot_shape_context_t *c)
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{
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unsigned int count = c->buffer->len;
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@ -354,7 +361,7 @@ hb_synthesize_glyph_classes (hb_ot_shape_context_t *c)
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}
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static void
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static inline void
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hb_ot_substitute_complex (hb_ot_shape_context_t *c)
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{
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hb_ot_layout_substitute_start (c->font, c->buffer);
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@ -370,11 +377,17 @@ hb_ot_substitute_complex (hb_ot_shape_context_t *c)
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return;
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}
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static inline void
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hb_ot_substitute (hb_ot_shape_context_t *c)
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{
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hb_ot_substitute_default (c);
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hb_ot_substitute_complex (c);
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}
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/* Position */
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static void
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hb_position_default (hb_ot_shape_context_t *c)
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static inline void
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hb_ot_position_default (hb_ot_shape_context_t *c)
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{
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hb_ot_layout_position_start (c->font, c->buffer);
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@ -391,9 +404,10 @@ hb_position_default (hb_ot_shape_context_t *c)
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}
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}
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static void
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static inline bool
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hb_ot_position_complex (hb_ot_shape_context_t *c)
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{
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bool ret = false;
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if (hb_ot_layout_has_positioning (c->face))
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{
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@ -416,22 +430,22 @@ hb_ot_position_complex (hb_ot_shape_context_t *c)
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&c->buffer->pos[i].y_offset);
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}
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c->applied_position_complex = true;
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ret = true;
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}
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hb_ot_layout_position_finish (c->font, c->buffer, c->plan->shaper->zero_width_attached_marks);
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return;
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return ret;
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}
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static void
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hb_position_complex_fallback (hb_ot_shape_context_t *c)
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static inline void
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hb_ot_position_complex_fallback (hb_ot_shape_context_t *c)
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{
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_hb_ot_shape_fallback_position (c->plan, c->font, c->buffer);
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}
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static void
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hb_truetype_kern (hb_ot_shape_context_t *c)
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static inline void
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hb_ot_truetype_kern (hb_ot_shape_context_t *c)
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{
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/* TODO Check for kern=0 */
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unsigned int count = c->buffer->len;
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@ -455,14 +469,34 @@ hb_truetype_kern (hb_ot_shape_context_t *c)
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}
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}
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static void
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static inline void
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hb_position_complex_fallback_visual (hb_ot_shape_context_t *c)
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{
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hb_truetype_kern (c);
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hb_ot_truetype_kern (c);
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}
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static inline void
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hb_ot_position (hb_ot_shape_context_t *c)
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{
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hb_ot_position_default (c);
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hb_bool_t fallback = !hb_ot_position_complex (c);
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if (fallback)
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hb_ot_position_complex_fallback (c);
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if (HB_DIRECTION_IS_BACKWARD (c->buffer->props.direction))
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hb_buffer_reverse (c->buffer);
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if (fallback)
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hb_position_complex_fallback_visual (c);
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}
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/* Post-process */
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static void
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hb_hide_zerowidth (hb_ot_shape_context_t *c)
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hb_ot_hide_zerowidth (hb_ot_shape_context_t *c)
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{
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hb_codepoint_t space;
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if (!c->font->get_glyph (' ', 0, &space))
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@ -479,7 +513,7 @@ hb_hide_zerowidth (hb_ot_shape_context_t *c)
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}
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/* Do it! */
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/* Pull it all together! */
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static void
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hb_ot_shape_internal (hb_ot_shape_context_t *c)
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@ -495,43 +529,14 @@ hb_ot_shape_internal (hb_ot_shape_context_t *c)
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c->buffer->clear_output ();
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hb_set_unicode_props (c->buffer);
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hb_form_clusters (c->buffer);
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hb_ensure_native_direction (c->buffer);
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_hb_ot_shape_normalize (c->font, c->buffer,
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c->plan->shaper->normalization_preference ?
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c->plan->shaper->normalization_preference (c->plan) :
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HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT);
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hb_ot_substitute (c);
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hb_ot_position (c);
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hb_ot_shape_setup_masks (c);
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/* SUBSTITUTE */
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{
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hb_substitute_default (c);
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hb_ot_substitute_complex (c);
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}
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/* POSITION */
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{
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hb_position_default (c);
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hb_ot_position_complex (c);
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hb_bool_t position_fallback = !c->applied_position_complex;
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if (position_fallback)
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hb_position_complex_fallback (c);
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if (HB_DIRECTION_IS_BACKWARD (c->buffer->props.direction))
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hb_buffer_reverse (c->buffer);
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if (position_fallback)
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hb_position_complex_fallback_visual (c);
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}
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hb_hide_zerowidth (c);
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hb_ot_hide_zerowidth (c);
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HB_BUFFER_DEALLOCATE_VAR (c->buffer, unicode_props1);
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HB_BUFFER_DEALLOCATE_VAR (c->buffer, unicode_props0);
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@ -572,7 +577,7 @@ hb_ot_shape_glyphs_closure (hb_font_t *font,
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/* TODO: normalization? have shapers do closure()? */
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/* TODO: Deal with mirrored chars? */
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hb_map_glyphs (font, buffer);
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hb_ot_map_glyphs (font, buffer);
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/* Seed it. It's user's responsibility to have cleard glyphs
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* if that's what they desire. */
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