1 files changed, 67 insertions, 0 deletions
diff --git a/sfntly/table/bitmap/index_sub_table_format1.cc b/sfntly/table/bitmap/index_sub_table_format1.cc
new file mode 100644
index 0000000..b98655a
--- /dev/null
+++ b/sfntly/table/bitmap/index_sub_table_format1.cc
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2011 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "sfntly/table/bitmap/index_sub_table_format1.h"
+
+#include "sfntly/table/bitmap/eblc_table.h"
+
+namespace sfntly {
+
+// static
+int32_t IndexSubTableFormat1::GetDataLength(ReadableFontData* data,
+                                            int32_t offset,
+                                            int32_t first,
+                                            int32_t last) {
+  UNREFERENCED_PARAMETER(data);
+  UNREFERENCED_PARAMETER(offset);
+  return (last - first + 1 + 1) * DataSize::kULONG;
+}
+
+IndexSubTableFormat1::IndexSubTableFormat1(ReadableFontData* data,
+                                           int32_t first,
+                                           int32_t last)
+    : IndexSubTable(data, first, last) {
+}
+
+IndexSubTableFormat1::~IndexSubTableFormat1() {
+}
+
+int32_t IndexSubTableFormat1::NumGlyphs() {
+  return last_glyph_index() - first_glyph_index() + 1;
+}
+
+int32_t IndexSubTableFormat1::GlyphOffset(int32_t glyph_id) {
+  if (CheckGlyphRange(glyph_id)) {
+    return Loca(glyph_id);
+  }
+  return -1;
+}
+
+int32_t IndexSubTableFormat1::GlyphLength(int32_t glyph_id) {
+  if (CheckGlyphRange(glyph_id)) {
+    return Loca(glyph_id + 1) - Loca(glyph_id);
+  }
+  return -1;
+}
+
+int32_t IndexSubTableFormat1::Loca(int32_t loca_index) {
+  return image_data_offset() +
+         data_->ReadULongAsInt(EblcTable::Offset::kIndexSubTable1_offsetArray +
+                               (loca_index - first_glyph_index()) *
+                               DataSize::kULONG);
+}
+
+}  // namespace sfntly