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embed pdf.ttf to tesseract library #2551
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zdenop
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src/api/pdf_ttf.h
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75
src/api/pdf_ttf.h
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///////////////////////////////////////////////////////////////////////
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// File: pdf_ttf.h
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// Description: pdf.ttf (GlyphLessFont) replacement.
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// Generated with: "bin2cpp pdf.ttf pdf_ttf cpp17"
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// Author: Zdenko Podobny
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//
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// (C) Copyright 2020, Google Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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///////////////////////////////////////////////////////////////////////
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#ifndef pdf_ttf__H
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#define pdf_ttf__H
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inline unsigned long pdf_ttf_length = 0x23c;
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inline unsigned char pdf_ttf[] = {
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0x0, 0x1, 0x0, 0x0, 0x0, 0xa, 0x0, 0x80, 0x0, 0x3, 0x0, 0x20,
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0x4f, 0x53, 0x2f, 0x32, 0x56, 0xde, 0xc8, 0x94, 0x0, 0x0, 0x1, 0x28,
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0x0, 0x0, 0x0, 0x60, 0x63, 0x6d, 0x61, 0x70, 0x0, 0xa, 0x0, 0x34,
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0x0, 0x0, 0x1, 0x90, 0x0, 0x0, 0x0, 0x1e, 0x67, 0x6c, 0x79, 0x66,
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0x15, 0x22, 0x41, 0x24, 0x0, 0x0, 0x1, 0xb8, 0x0, 0x0, 0x0, 0x18,
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0x68, 0x65, 0x61, 0x64, 0xb, 0x78, 0xf1, 0x65, 0x0, 0x0, 0x0, 0xac,
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0x0, 0x0, 0x0, 0x36, 0x68, 0x68, 0x65, 0x61, 0xc, 0x2, 0x4, 0x2,
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0x0, 0x0, 0x0, 0xe4, 0x0, 0x0, 0x0, 0x24, 0x68, 0x6d, 0x74, 0x78,
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0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x88, 0x0, 0x0, 0x0, 0x8,
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0x6c, 0x6f, 0x63, 0x61, 0x0, 0xc, 0x0, 0x0, 0x0, 0x0, 0x1, 0xb0,
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0x0, 0x0, 0x0, 0x6, 0x6d, 0x61, 0x78, 0x70, 0x0, 0x4, 0x0, 0x5,
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0x0, 0x0, 0x1, 0x8, 0x0, 0x0, 0x0, 0x20, 0x6e, 0x61, 0x6d, 0x65,
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0xf2, 0xeb, 0x16, 0xda, 0x0, 0x0, 0x1, 0xd0, 0x0, 0x0, 0x0, 0x4b,
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0x70, 0x6f, 0x73, 0x74, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x2, 0x1c,
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0x0, 0x0, 0x0, 0x20, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0,
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0xb0, 0x94, 0x71, 0x10, 0x5f, 0xf, 0x3c, 0xf5, 0x4, 0x7, 0x8, 0x0,
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0x0, 0x0, 0x0, 0x0, 0xcf, 0x9a, 0xfc, 0x6e, 0x0, 0x0, 0x0, 0x0,
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0xd4, 0xc3, 0xa7, 0xf2, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x8, 0x0,
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0x0, 0x0, 0x0, 0x10, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x1, 0x0, 0x0, 0x8, 0x0, 0xff, 0xff, 0x0, 0x0, 0x4, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2,
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0x0, 0x1, 0x0, 0x0, 0x0, 0x2, 0x0, 0x4, 0x0, 0x1, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0,
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0x1, 0x90, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x5, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x47, 0x4f, 0x4f, 0x47, 0x0, 0x40,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0xff, 0xff, 0x0, 0x0, 0x0, 0x1,
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0x0, 0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x1, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x14, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14,
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0x0, 0x6, 0x0, 0xa, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0xc, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0,
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0x0, 0x0, 0x4, 0x0, 0x8, 0x0, 0x0, 0x3, 0x0, 0x0, 0x31, 0x21,
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0x11, 0x21, 0x4, 0x0, 0xfc, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x3,
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0x0, 0x2a, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x5, 0x0, 0x16,
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0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x0, 0xb,
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0x0, 0x16, 0x0, 0x3, 0x0, 0x1, 0x4, 0x9, 0x0, 0x5, 0x0, 0x16,
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0x0, 0x0, 0x0, 0x56, 0x0, 0x65, 0x0, 0x72, 0x0, 0x73, 0x0, 0x69,
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0x0, 0x6f, 0x0, 0x6e, 0x0, 0x20, 0x0, 0x31, 0x0, 0x2e, 0x0, 0x30,
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0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x20, 0x31, 0x2e, 0x30, 0x0,
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0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
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#endif
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@ -23,12 +23,14 @@
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#include <locale> // for std::locale::classic
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#include <memory> // std::unique_ptr
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#include <sstream> // for std::stringstream
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#include <fstream> // for std::ifstream
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#include "allheaders.h"
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#include <tesseract/baseapi.h>
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#include <cmath>
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#include <tesseract/renderer.h>
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#include <cstring>
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#include "tprintf.h"
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#include "pdf_ttf.h"
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/*
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@ -623,24 +625,21 @@ bool TessPDFRenderer::BeginDocumentHandler() {
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stream.str("");
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stream << datadir_.c_str() << "/pdf.ttf";
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FILE *fp = fopen(stream.str().c_str(), "rb");
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if (!fp) {
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tprintf("Cannot open file \"%s\"!\n", stream.str().c_str());
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return false;
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const char* font;
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std::ifstream input(stream.str().c_str(), std::ios::in | std::ios::binary);
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std::vector<unsigned char> buffer(std::istreambuf_iterator<char>(input), {});
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auto size = buffer.size();
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if (size) {
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font = reinterpret_cast<char*>(buffer.data());
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} else {
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#if defined(DEBUG)
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tprintf("Cannot open file \"%s\"!\nUsing internal glyphless font.\n",
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stream.str().c_str());
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#endif
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font = reinterpret_cast<char*>(pdf_ttf);
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size = pdf_ttf_length;
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}
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fseek(fp, 0, SEEK_END);
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auto size = std::ftell(fp);
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if (size < 0) {
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fclose(fp);
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return false;
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}
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fseek(fp, 0, SEEK_SET);
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const std::unique_ptr<char[]> buffer(new char[size]);
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if (!tesseract::DeSerialize(fp, buffer.get(), size)) {
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fclose(fp);
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return false;
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}
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fclose(fp);
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// FONTFILE2
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stream.str("");
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stream <<
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@ -652,7 +651,7 @@ bool TessPDFRenderer::BeginDocumentHandler() {
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"stream\n";
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AppendString(stream.str().c_str());
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objsize = stream.str().size();
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AppendData(buffer.get(), size);
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AppendData(font, size);
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objsize += size;
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AppendString(endstream_endobj);
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objsize += strlen(endstream_endobj);
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