Mercurial > hgrepos > Python2 > PyMuPDF

annotate src_classic/helper-convert.i @ 1:1d09e1dec1d9 upstream

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ADD: PyMuPDF v1.26.4: the original sdist. It does not yet contain MuPDF. This normally will be downloaded when building PyMuPDF.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:37:51 +0200
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1
1d09e1dec1d9 ADD: PyMuPDF v1.26.4: the original sdist.
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1 %{
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2 /*
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3 # ------------------------------------------------------------------------
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4 # Copyright 2020-2022, Harald Lieder, mailto:harald.lieder@outlook.com
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5 # License: GNU AFFERO GPL 3.0, https://www.gnu.org/licenses/agpl-3.0.html
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6 #
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7 # Part of "PyMuPDF", a Python binding for "MuPDF" (http://mupdf.com), a
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8 # lightweight PDF, XPS, and E-book viewer, renderer and toolkit which is
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9 # maintained and developed by Artifex Software, Inc. https://artifex.com.
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10 # ------------------------------------------------------------------------
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11 */
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12 //-----------------------------------------------------------------------------
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13 // Convert any MuPDF document to a PDF
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14 // Returns bytes object containing the PDF, created via 'write' function.
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15 //-----------------------------------------------------------------------------
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16 PyObject *JM_convert_to_pdf(fz_context *ctx, fz_document *doc, int fp, int tp, int rotate)
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17 {
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18 pdf_document *pdfout = pdf_create_document(ctx); // new PDF document
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19 int i, incr = 1, s = fp, e = tp;
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20 if (fp > tp) {
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21 incr = -1; // count backwards
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22 s = tp; // adjust ...
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23 e = fp; // ... range
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24 }
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25 fz_rect mediabox;
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26 int rot = JM_norm_rotation(rotate);
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27 fz_device *dev = NULL;
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28 fz_buffer *contents = NULL;
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29 pdf_obj *resources = NULL;
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30 fz_page *page=NULL;
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31 fz_var(dev);
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32 fz_var(contents);
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33 fz_var(resources);
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34 fz_var(page);
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35 for (i = fp; INRANGE(i, s, e); i += incr) { // interpret & write document pages as PDF pages
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36 fz_try(ctx) {
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37 page = fz_load_page(ctx, doc, i);
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38 mediabox = fz_bound_page(ctx, page);
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39 dev = pdf_page_write(ctx, pdfout, mediabox, &resources, &contents);
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40 fz_run_page(ctx, page, dev, fz_identity, NULL);
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41 fz_close_device(ctx, dev);
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42 fz_drop_device(ctx, dev);
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43 dev = NULL;
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44 pdf_obj *page_obj = pdf_add_page(ctx, pdfout, mediabox, rot, resources, contents);
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45 pdf_insert_page(ctx, pdfout, -1, page_obj);
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46 pdf_drop_obj(ctx, page_obj);
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47 }
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48 fz_always(ctx) {
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49 pdf_drop_obj(ctx, resources);
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50 fz_drop_buffer(ctx, contents);
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51 fz_drop_device(ctx, dev);
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52 fz_drop_page(ctx, page);
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53 page = NULL;
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54 dev = NULL;
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55 contents = NULL;
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56 resources = NULL;
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57 }
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58 fz_catch(ctx) {
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59 fz_rethrow(ctx);
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60 }
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61 }
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62 // PDF created - now write it to Python bytearray
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63 PyObject *r = NULL;
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64 fz_output *out = NULL;
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65 fz_buffer *res = NULL;
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66 // prepare write options structure
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67 pdf_write_options opts = { 0 };
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68 opts.do_garbage = 4;
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69 opts.do_compress = 1;
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70 opts.do_compress_images = 1;
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71 opts.do_compress_fonts = 1;
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72 opts.do_sanitize = 1;
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73 opts.do_incremental = 0;
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74 opts.do_ascii = 0;
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75 opts.do_decompress = 0;
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76 opts.do_linear = 0;
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77 opts.do_clean = 1;
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78 opts.do_pretty = 0;
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79
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80 fz_try(ctx) {
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81 res = fz_new_buffer(ctx, 8192);
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82 out = fz_new_output_with_buffer(ctx, res);
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83 pdf_write_document(ctx, pdfout, out, &opts);
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84 unsigned char *c = NULL;
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85 size_t len = fz_buffer_storage(ctx, res, &c);
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86 r = PyBytes_FromStringAndSize((const char *) c, (Py_ssize_t) len);
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87 }
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88 fz_always(ctx) {
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89 pdf_drop_document(ctx, pdfout);
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90 fz_drop_output(ctx, out);
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91 fz_drop_buffer(ctx, res);
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92 }
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93 fz_catch(ctx) {
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94 fz_rethrow(ctx);
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95 }
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96 return r;
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97 }
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98 %}