Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/include/mupdf/fitz/writer.h @ 40:aa33339d6b8a upstream

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ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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1 // Copyright (C) 2004-2025 Artifex Software, Inc.
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2 //
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3 // This file is part of MuPDF.
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4 //
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5 // MuPDF is free software: you can redistribute it and/or modify it under the
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6 // terms of the GNU Affero General Public License as published by the Free
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7 // Software Foundation, either version 3 of the License, or (at your option)
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8 // any later version.
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9 //
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10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
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11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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13 // details.
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14 //
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15 // You should have received a copy of the GNU Affero General Public License
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16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
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17 //
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18 // Alternative licensing terms are available from the licensor.
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19 // For commercial licensing, see <https://www.artifex.com/> or contact
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20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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21 // CA 94129, USA, for further information.
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23 #ifndef MUPDF_FITZ_WRITER_H
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24 #define MUPDF_FITZ_WRITER_H
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26 #include "mupdf/fitz/system.h"
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27 #include "mupdf/fitz/context.h"
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28 #include "mupdf/fitz/output.h"
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29 #include "mupdf/fitz/document.h"
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30 #include "mupdf/fitz/device.h"
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32 typedef struct fz_document_writer fz_document_writer;
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33
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34 /**
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35 Function type to start
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36 the process of writing a page to a document.
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38 mediabox: page size rectangle in points.
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40 Returns a fz_device to write page contents to.
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41 */
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42 typedef fz_device *(fz_document_writer_begin_page_fn)(fz_context *ctx, fz_document_writer *wri, fz_rect mediabox);
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44 /**
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45 Function type to end the
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46 process of writing a page to a document.
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48 dev: The device created by the begin_page function.
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49 */
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50 typedef void (fz_document_writer_end_page_fn)(fz_context *ctx, fz_document_writer *wri, fz_device *dev);
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52 /**
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53 Function type to end
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54 the process of writing pages to a document.
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56 This writes any file level trailers required. After this
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57 completes successfully the file is up to date and complete.
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58 */
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59 typedef void (fz_document_writer_close_writer_fn)(fz_context *ctx, fz_document_writer *wri);
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61 /**
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62 Function type to discard
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63 an fz_document_writer. This may be called at any time during
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64 the process to release all the resources owned by the writer.
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66 Calling drop without having previously called close may leave
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67 the file in an inconsistent state and the user of the
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68 fz_document_writer would need to do any cleanup required.
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69 */
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70 typedef void (fz_document_writer_drop_writer_fn)(fz_context *ctx, fz_document_writer *wri);
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72 #define fz_new_derived_document_writer(CTX,TYPE,BEGIN_PAGE,END_PAGE,CLOSE,DROP) \
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73 ((TYPE *)Memento_label(fz_new_document_writer_of_size(CTX,sizeof(TYPE),BEGIN_PAGE,END_PAGE,CLOSE,DROP),#TYPE))
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75 /**
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76 Look for a given option (key) in the opts string. Return 1 if
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77 it has it, and update *val to point to the value within opts.
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78 */
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79 int fz_has_option(fz_context *ctx, const char *opts, const char *key, const char **val);
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80
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81 /**
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82 Check to see if an option, a, from a string matches a reference
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83 option, b.
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84
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85 (i.e. a could be 'foo' or 'foo,bar...' etc, but b can only be
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86 'foo'.)
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87 */
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88 int fz_option_eq(const char *a, const char *b);
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90 /**
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91 Copy an option (val) into a destination buffer (dest), of maxlen
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92 bytes.
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93
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94 Returns the number of bytes (including terminator) that did not
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95 fit. If val is maxlen or greater bytes in size, it will be left
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96 unterminated.
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97 */
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98 size_t fz_copy_option(fz_context *ctx, const char *val, char *dest, size_t maxlen);
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99
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100 /**
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101 Create a new fz_document_writer, for a
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102 file of the given type.
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103
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104 path: The document name to write (or NULL for default)
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105
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106 format: Which format to write (currently cbz, html, pdf, pam,
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107 pbm, pgm, pkm, png, ppm, pnm, svg, text, xhtml, docx, odt)
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108
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109 options: NULL, or pointer to comma separated string to control
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110 file generation.
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111 */
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112 fz_document_writer *fz_new_document_writer(fz_context *ctx, const char *path, const char *format, const char *options);
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113
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114 /**
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115 Like fz_new_document_writer but takes a fz_output for writing
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116 the result. Only works for multi-page formats.
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117 */
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118 fz_document_writer *
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119 fz_new_document_writer_with_output(fz_context *ctx, fz_output *out, const char *format, const char *options);
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120
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121 fz_document_writer *
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122 fz_new_document_writer_with_buffer(fz_context *ctx, fz_buffer *buf, const char *format, const char *options);
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123
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124 /**
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125 Document writers for various possible output formats.
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126
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127 All of the "_with_output" variants pass the ownership of out in
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128 immediately upon calling. The writers are responsible for
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129 dropping the fz_output when they are finished with it (even
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130 if they throw an exception during creation).
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131 */
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132 fz_document_writer *fz_new_pdf_writer(fz_context *ctx, const char *path, const char *options);
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133 fz_document_writer *fz_new_pdf_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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134 fz_document_writer *fz_new_svg_writer(fz_context *ctx, const char *path, const char *options);
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135 fz_document_writer *fz_new_svg_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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136
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137 fz_document_writer *fz_new_text_writer(fz_context *ctx, const char *format, const char *path, const char *options);
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138 fz_document_writer *fz_new_text_writer_with_output(fz_context *ctx, const char *format, fz_output *out, const char *options);
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139
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140 fz_document_writer *fz_new_odt_writer(fz_context *ctx, const char *path, const char *options);
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141 fz_document_writer *fz_new_odt_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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142 fz_document_writer *fz_new_docx_writer(fz_context *ctx, const char *path, const char *options);
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143 fz_document_writer *fz_new_docx_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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144
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145 fz_document_writer *fz_new_ps_writer(fz_context *ctx, const char *path, const char *options);
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146 fz_document_writer *fz_new_ps_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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147 fz_document_writer *fz_new_pcl_writer(fz_context *ctx, const char *path, const char *options);
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148 fz_document_writer *fz_new_pcl_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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149 fz_document_writer *fz_new_pclm_writer(fz_context *ctx, const char *path, const char *options);
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150 fz_document_writer *fz_new_pclm_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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151 fz_document_writer *fz_new_pwg_writer(fz_context *ctx, const char *path, const char *options);
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152 fz_document_writer *fz_new_pwg_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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153
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154 fz_document_writer *fz_new_cbz_writer(fz_context *ctx, const char *path, const char *options);
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155 fz_document_writer *fz_new_cbz_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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156
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157 fz_document_writer *fz_new_csv_writer(fz_context *ctx, const char *path, const char *options);
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158 fz_document_writer *fz_new_csv_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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159
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160 /**
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161 Used to report progress of the OCR operation.
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162
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163 page: Current page being processed.
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164
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165 percent: Progress of the OCR operation for the
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166 current page in percent. Whether it reaches 100
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167 once a page is finished, depends on the OCR engine.
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168
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169 Return 0 to continue progress, return 1 to cancel the
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170 operation.
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171 */
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172 typedef int (fz_pdfocr_progress_fn)(fz_context *ctx, void *progress_arg, int page, int percent);
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173
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174 fz_document_writer *fz_new_pdfocr_writer(fz_context *ctx, const char *path, const char *options);
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175 fz_document_writer *fz_new_pdfocr_writer_with_output(fz_context *ctx, fz_output *out, const char *options);
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176 void fz_pdfocr_writer_set_progress(fz_context *ctx, fz_document_writer *writer, fz_pdfocr_progress_fn *progress, void *);
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177
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178 fz_document_writer *fz_new_jpeg_pixmap_writer(fz_context *ctx, const char *path, const char *options);
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179 fz_document_writer *fz_new_png_pixmap_writer(fz_context *ctx, const char *path, const char *options);
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180 fz_document_writer *fz_new_pam_pixmap_writer(fz_context *ctx, const char *path, const char *options);
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181 fz_document_writer *fz_new_pnm_pixmap_writer(fz_context *ctx, const char *path, const char *options);
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182 fz_document_writer *fz_new_pgm_pixmap_writer(fz_context *ctx, const char *path, const char *options);
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183 fz_document_writer *fz_new_ppm_pixmap_writer(fz_context *ctx, const char *path, const char *options);
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184 fz_document_writer *fz_new_pbm_pixmap_writer(fz_context *ctx, const char *path, const char *options);
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185 fz_document_writer *fz_new_pkm_pixmap_writer(fz_context *ctx, const char *path, const char *options);
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186
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187 /**
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188 Called to start the process of writing a page to
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189 a document.
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190
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191 mediabox: page size rectangle in points.
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192
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193 Returns a borrowed fz_device to write page contents to. This
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194 should be kept if required, and only dropped if it was kept.
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195 */
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196 fz_device *fz_begin_page(fz_context *ctx, fz_document_writer *wri, fz_rect mediabox);
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197
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198 /**
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199 Called to end the process of writing a page to a
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200 document.
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201 */
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202 void fz_end_page(fz_context *ctx, fz_document_writer *wri);
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203
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204 /**
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205 Convenience function to feed all the pages of a document to
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206 fz_begin_page/fz_run_page/fz_end_page.
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207 */
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208 void fz_write_document(fz_context *ctx, fz_document_writer *wri, fz_document *doc);
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209
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210 /**
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211 Called to end the process of writing
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212 pages to a document.
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213
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214 This writes any file level trailers required. After this
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215 completes successfully the file is up to date and complete.
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216 */
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217 void fz_close_document_writer(fz_context *ctx, fz_document_writer *wri);
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218
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219 /**
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220 Called to discard a fz_document_writer.
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221 This may be called at any time during the process to release all
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222 the resources owned by the writer.
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223
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224 Calling drop without having previously called close may leave
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225 the file in an inconsistent state.
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226 */
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227 void fz_drop_document_writer(fz_context *ctx, fz_document_writer *wri);
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228
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229 fz_document_writer *fz_new_pixmap_writer(fz_context *ctx, const char *path, const char *options, const char *default_path, int n,
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230 void (*save)(fz_context *ctx, fz_pixmap *pix, const char *filename));
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231
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232 FZ_DATA extern const char *fz_pdf_write_options_usage;
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233 FZ_DATA extern const char *fz_svg_write_options_usage;
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234
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235 FZ_DATA extern const char *fz_pcl_write_options_usage;
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236 FZ_DATA extern const char *fz_pclm_write_options_usage;
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237 FZ_DATA extern const char *fz_pwg_write_options_usage;
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238 FZ_DATA extern const char *fz_pdfocr_write_options_usage;
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239
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240 /* Implementation details: subject to change. */
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241
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242 /**
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243 Structure is public to allow other structures to
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244 be derived from it. Do not access members directly.
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245 */
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246 struct fz_document_writer
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247 {
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248 fz_document_writer_begin_page_fn *begin_page;
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249 fz_document_writer_end_page_fn *end_page;
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250 fz_document_writer_close_writer_fn *close_writer;
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251 fz_document_writer_drop_writer_fn *drop_writer;
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252 fz_device *dev;
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253 };
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254
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255 /**
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256 Internal function to allocate a
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257 block for a derived document_writer structure, with the base
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258 structure's function pointers populated correctly, and the extra
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259 space zero initialised.
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260 */
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261 fz_document_writer *fz_new_document_writer_of_size(fz_context *ctx, size_t size,
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262 fz_document_writer_begin_page_fn *begin_page,
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263 fz_document_writer_end_page_fn *end_page,
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264 fz_document_writer_close_writer_fn *close,
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265 fz_document_writer_drop_writer_fn *drop);
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266
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267
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268
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269 #endif