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-rw-r--r--Build/source/texk/web2c/mfluadir/otfcc/lib/table/otl/subtables/gpos-cursive.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/mfluadir/otfcc/lib/table/otl/subtables/gpos-cursive.c b/Build/source/texk/web2c/mfluadir/otfcc/lib/table/otl/subtables/gpos-cursive.c
new file mode 100644
index 00000000000..f75fc487a20
--- /dev/null
+++ b/Build/source/texk/web2c/mfluadir/otfcc/lib/table/otl/subtables/gpos-cursive.c
@@ -0,0 +1,101 @@
+#include "gpos-cursive.h"
+#include "gpos-common.h"
+
+static void deleteGposCursiveEntry(otl_GposCursiveEntry *entry) {
+ Handle.dispose(&entry->target);
+}
+
+static caryll_ElementInterface(otl_GposCursiveEntry) gss_typeinfo = {
+ .init = NULL, .copy = NULL, .dispose = deleteGposCursiveEntry};
+
+caryll_standardVectorImpl(subtable_gpos_cursive, otl_GposCursiveEntry, gss_typeinfo,
+ iSubtable_gpos_cursive);
+
+otl_Subtable *otl_read_gpos_cursive(const font_file_pointer data, uint32_t tableLength,
+ uint32_t offset, const glyphid_t maxGlyphs,
+ const otfcc_Options *options) {
+ subtable_gpos_cursive *subtable = iSubtable_gpos_cursive.create();
+ otl_Coverage *targets = NULL;
+
+ checkLength(offset + 6);
+
+ targets = Coverage.read(data, tableLength, offset + read_16u(data + offset + 2));
+ if (!targets || targets->numGlyphs == 0) goto FAIL;
+
+ glyphid_t valueCount = read_16u(data + offset + 4);
+ checkLength(offset + 6 + 4 * valueCount);
+ if (valueCount != targets->numGlyphs) goto FAIL;
+
+ for (glyphid_t j = 0; j < valueCount; j++) {
+ uint16_t enterOffset = read_16u(data + offset + 6 + 4 * j);
+ uint16_t exitOffset = read_16u(data + offset + 6 + 4 * j + 2);
+ otl_Anchor enter = otl_anchor_absent();
+ otl_Anchor exit = otl_anchor_absent();
+ if (enterOffset) { enter = otl_read_anchor(data, tableLength, offset + enterOffset); }
+ if (exitOffset) { exit = otl_read_anchor(data, tableLength, offset + exitOffset); }
+ iSubtable_gpos_cursive.push(
+ subtable, ((otl_GposCursiveEntry){
+ .target = Handle.dup(targets->glyphs[j]), .enter = enter, .exit = exit}));
+ }
+ if (targets) Coverage.free(targets);
+ return (otl_Subtable *)subtable;
+FAIL:
+ if (targets) Coverage.free(targets);
+ iSubtable_gpos_cursive.free(subtable);
+ return NULL;
+}
+
+json_value *otl_gpos_dump_cursive(const otl_Subtable *_subtable) {
+ const subtable_gpos_cursive *subtable = &(_subtable->gpos_cursive);
+ json_value *st = json_object_new(subtable->length);
+ for (glyphid_t j = 0; j < subtable->length; j++) {
+ json_value *rec = json_object_new(2);
+ json_object_push(rec, "enter", otl_dump_anchor(subtable->items[j].enter));
+ json_object_push(rec, "exit", otl_dump_anchor(subtable->items[j].exit));
+ json_object_push(st, subtable->items[j].target.name, preserialize(rec));
+ }
+ return st;
+}
+
+otl_Subtable *otl_gpos_parse_cursive(const json_value *_subtable, const otfcc_Options *options) {
+ subtable_gpos_cursive *subtable = iSubtable_gpos_cursive.create();
+ for (glyphid_t j = 0; j < _subtable->u.object.length; j++) {
+ if (_subtable->u.object.values[j].value &&
+ _subtable->u.object.values[j].value->type == json_object) {
+ sds gname = sdsnewlen(_subtable->u.object.values[j].name,
+ _subtable->u.object.values[j].name_length);
+ iSubtable_gpos_cursive.push(
+ subtable, ((otl_GposCursiveEntry){
+ .target = Handle.fromName(gname),
+ .enter = otl_parse_anchor(
+ json_obj_get(_subtable->u.object.values[j].value, "enter")),
+ .exit = otl_parse_anchor(
+ json_obj_get(_subtable->u.object.values[j].value, "exit")),
+ }));
+ }
+ }
+ return (otl_Subtable *)subtable;
+}
+
+caryll_Buffer *otfcc_build_gpos_cursive(const otl_Subtable *_subtable,
+ otl_BuildHeuristics heuristics) {
+ const subtable_gpos_cursive *subtable = &(_subtable->gpos_cursive);
+ otl_Coverage *cov = Coverage.create();
+ for (glyphid_t j = 0; j < subtable->length; j++) {
+ Coverage.push(cov, Handle.dup(subtable->items[j].target));
+ }
+
+ bk_Block *root = bk_new_Block(b16, 1, // format
+ p16, bk_newBlockFromBuffer(Coverage.build(cov)), // Coverage
+ b16, subtable->length, // EntryExitCount
+ bkover);
+ for (glyphid_t j = 0; j < subtable->length; j++) {
+ bk_push(root, // EntryExitRecord[.]
+ p16, bkFromAnchor(subtable->items[j].enter), // enter
+ p16, bkFromAnchor(subtable->items[j].exit), // exit
+ bkover);
+ }
+ Coverage.free(cov);
+
+ return bk_build_Block(root);
+}