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Diffstat (limited to 'sample/chromium/font_subsetter.h')
-rw-r--r-- | sample/chromium/font_subsetter.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sample/chromium/font_subsetter.h b/sample/chromium/font_subsetter.h new file mode 100644 index 0000000..07b1b5b --- /dev/null +++ b/sample/chromium/font_subsetter.h @@ -0,0 +1,51 @@ +/* + * 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. + */ +// File is originally from Chromium third_party/sfntly/src/subsetter. +// Use as test case in sfntly so that problems can be caught in upstream early. +#ifndef SFNTLY_CPP_SRC_TEST_FONT_SUBSETTER_H_ +#define SFNTLY_CPP_SRC_TEST_FONT_SUBSETTER_H_ + +#include <cstddef> + +class SfntlyWrapper { + public: + + // Font subsetting API + // + // Input TTF/TTC/OTF fonts, specify the glyph IDs to subset, and the subset + // font is returned in |output_buffer| (caller to delete[]). Return value is + // the length of output_buffer allocated. + // + // If subsetting fails, a negative value is returned. If none of the glyph + // IDs specified is found, the function will return 0. + // + // |font_name| Font name, required for TTC files. If specified NULL, + // the first available font is selected. + // |original_font| Original font file contents. + // |font_size| Size of |original_font| in bytes. + // |glyph_ids| Glyph IDs to subset. If the specified glyph ID is not + // found in the font file, it will be ignored silently. + // |glyph_count| Number of glyph IDs in |glyph_ids| + // |output_buffer| Generated subset font. Caller to delete[]. + static int SubsetFont(const char* font_name, + const unsigned char* original_font, + size_t font_size, + const unsigned int* glyph_ids, + size_t glyph_count, + unsigned char** output_buffer); +}; + +#endif // SFNTLY_CPP_SRC_TEST_FONT_SUBSETTER_H_ |