Advance C++ port to Sep 1 11 snapshot

Update test font to use OFL-compliant fonts



git-svn-id: http://sfntly.googlecode.com/svn/trunk/cpp/src@71 672e30a5-4c29-85ac-ac6d-611c735e0a51

1 files changed, 147 insertions, 0 deletions

diff --git a/sfntly/table/bitmap/bitmap_size_table.cc b/sfntly/table/bitmap/bitmap_size_table.cc
new file mode 100644
index 0000000..2b5b9bb
--- /dev/null
+++ b/sfntly/table/bitmap/bitmap_size_table.cc
@@ -0,0 +1,147 @@
+/*
+ * 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/bitmap_size_table.h"
+
+#include "sfntly/table/bitmap/eblc_table.h"
+
+namespace sfntly {
+
+BitmapSizeTable::BitmapSizeTable(ReadableFontData* data,
+                                 ReadableFontData* master_data)
+    : SubTable(data) {
+  master_data_ = master_data;
+}
+
+BitmapSizeTable::~BitmapSizeTable() {
+}
+
+int32_t BitmapSizeTable::IndexSubTableArrayOffset() {
+  return data_->ReadULongAsInt(
+      EblcTable::Offset::kBitmapSizeTable_indexSubTableArrayOffset);
+}
+
+int32_t BitmapSizeTable::IndexTableSize() {
+  return data_->ReadULongAsInt(
+      EblcTable::Offset::kBitmapSizeTable_indexTableSize);
+}
+
+int32_t BitmapSizeTable::NumberOfIndexSubTables() {
+  return data_->ReadULongAsInt(
+      EblcTable::Offset::kBitmapSizeTable_numberOfIndexSubTables);
+}
+
+int32_t BitmapSizeTable::ColorRef() {
+  return data_->ReadULongAsInt(EblcTable::Offset::kBitmapSizeTable_colorRef);
+}
+
+int32_t BitmapSizeTable::StartGlyphIndex() {
+  return data_->ReadUShort(EblcTable::Offset::kBitmapSizeTable_startGlyphIndex);
+}
+
+int32_t BitmapSizeTable::EndGlyphIndex() {
+  return data_->ReadUShort(EblcTable::Offset::kBitmapSizeTable_endGlyphIndex);
+}
+
+int32_t BitmapSizeTable::PpemX() {
+  return data_->ReadByte(EblcTable::Offset::kBitmapSizeTable_ppemX);
+}
+
+int32_t BitmapSizeTable::PpemY() {
+  return data_->ReadByte(EblcTable::Offset::kBitmapSizeTable_ppemY);
+}
+
+int32_t BitmapSizeTable::BitDepth() {
+  return data_->ReadByte(EblcTable::Offset::kBitmapSizeTable_bitDepth);
+}
+
+int32_t BitmapSizeTable::FlagsAsInt() {
+  return data_->ReadChar(EblcTable::Offset::kBitmapSizeTable_flags);
+}
+
+IndexSubTable* BitmapSizeTable::GetIndexSubTable(int32_t index) {
+  IndexSubTableList* subtable_list = GetIndexSubTableList();
+  if (index >= 0 && (size_t)index < subtable_list->size()) {
+    return (*subtable_list)[index];
+  }
+  return NULL;
+}
+
+int32_t BitmapSizeTable::GlyphOffset(int32_t glyph_id) {
+  IndexSubTable* subtable = SearchIndexSubTables(glyph_id);
+  if (subtable == NULL) {
+    return -1;
+  }
+  return subtable->GlyphOffset(glyph_id);
+}
+
+int32_t BitmapSizeTable::GlyphLength(int32_t glyph_id) {
+  IndexSubTable* subtable = SearchIndexSubTables(glyph_id);
+  if (subtable == NULL) {
+    return -1;
+  }
+  return subtable->GlyphLength(glyph_id);
+}
+
+int32_t BitmapSizeTable::GlyphFormat(int32_t glyph_id) {
+  IndexSubTable* subtable = SearchIndexSubTables(glyph_id);
+  if (subtable == NULL) {
+    return -1;
+  }
+  return subtable->image_format();
+}
+
+IndexSubTable* BitmapSizeTable::SearchIndexSubTables(int32_t glyph_id) {
+  IndexSubTableList* subtable_list = GetIndexSubTableList();
+  int32_t index = 0;
+  int32_t bottom = 0;
+  int32_t top = subtable_list->size();
+  while (top != bottom) {
+    index = (top + bottom) / 2;
+    IndexSubTable* subtable = (*subtable_list)[index];
+    if (glyph_id < subtable->first_glyph_index()) {
+      // Location beow current location
+      top = index;
+    } else {
+      if (glyph_id <= subtable->last_glyph_index()) {
+        return subtable;
+      } else {
+        bottom = index + 1;
+      }
+    }
+  }
+  return NULL;
+}
+
+CALLER_ATTACH
+IndexSubTable* BitmapSizeTable::CreateIndexSubTable(int32_t index) {
+  return IndexSubTable::CreateIndexSubTable(master_data_,
+                                            IndexSubTableArrayOffset(),
+                                            index);
+}
+
+IndexSubTableList* BitmapSizeTable::GetIndexSubTableList() {
+  if (atomic_subtables.empty()) {
+    for (int32_t i = 0; i < NumberOfIndexSubTables(); ++i) {
+      IndexSubTablePtr table;
+      table.Attach(CreateIndexSubTable(i));
+      atomic_subtables.push_back(table);
+    }
+  }
+  return &atomic_subtables;
+}
+
+}  // namespace sfntly