mirror of
https://github.com/michaelrsweet/pdfio.git
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436 lines
10 KiB
C
436 lines
10 KiB
C
//
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// Test program for pdfio.
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//
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// Copyright © 2021 by Michael R Sweet.
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//
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// Licensed under Apache License v2.0. See the file "LICENSE" for more
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// information.
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//
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//
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// Include necessary headers...
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//
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#include "pdfio-private.h"
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#include "pdfio-content.h"
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//
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// Local functions...
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//
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static int do_test_file(const char *filename);
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static int do_unit_tests(void);
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static bool error_cb(pdfio_file_t *pdf, const char *message, bool *error);
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static ssize_t token_consume_cb(const char **s, size_t bytes);
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static ssize_t token_peek_cb(const char **s, char *buffer, size_t bytes);
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static int write_page(pdfio_file_t *pdf, int number, pdfio_obj_t *image);
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//
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// 'main()' - Main entry for test program.
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//
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int // O - Exit status
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main(int argc, // I - Number of command-line arguments
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char *argv[]) // I - Command-line arguments
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{
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if (argc > 1)
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{
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int i; // Looping var
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for (i = 1; i < argc; i ++)
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{
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if (do_test_file(argv[i]))
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return (1);
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}
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}
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else
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{
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do_unit_tests();
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}
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return (0);
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}
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//
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// 'do_test_file()' - Try loading a PDF file and listing pages and objects.
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//
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static int // O - Exit status
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do_test_file(const char *filename) // I - PDF filename
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{
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bool error = false; // Have we shown an error yet?
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pdfio_file_t *pdf; // PDF file
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size_t n, // Object/page index
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num_objs, // Number of objects
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num_pages; // Number of pages
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pdfio_obj_t *obj; // Object
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pdfio_dict_t *dict; // Object dictionary
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const char *type; // Object type
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// Try opening the file...
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printf("pdfioFileOpen(\"%s\", ...): ", filename);
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if ((pdf = pdfioFileOpen(filename, (pdfio_error_cb_t)error_cb, &error)) != NULL)
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{
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puts("PASS");
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// Show basic stats...
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num_objs = pdfioFileGetNumObjects(pdf);
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num_pages = pdfioFileGetNumPages(pdf);
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printf(" PDF %s, %d pages, %d objects.\n", pdfioFileGetVersion(pdf), (int)num_pages, (int)num_objs);
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// Show a summary of each page...
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for (n = 0; n < num_pages; n ++)
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{
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if ((obj = pdfioFileGetPage(pdf, n)) == NULL)
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{
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printf("%s: Unable to get page #%d.\n", filename, (int)n + 1);
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}
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else
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{
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pdfio_rect_t media_box; // MediaBox value
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memset(&media_box, 0, sizeof(media_box));
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dict = pdfioObjGetDict(obj);
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if (!pdfioDictGetRect(dict, "MediaBox", &media_box))
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{
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if ((obj = pdfioDictGetObject(dict, "Parent")) != NULL)
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{
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dict = pdfioObjGetDict(obj);
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pdfioDictGetRect(dict, "MediaBox", &media_box);
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}
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}
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printf(" Page #%d is %gx%g.\n", (int)n + 1, media_box.x2, media_box.y2);
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}
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}
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// Show the associated value with each object...
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for (n = 0; n < num_objs; n ++)
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{
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if ((obj = pdfioFileGetObject(pdf, n)) == NULL)
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{
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printf(" Unable to get object #%d.\n", (int)n);
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}
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else
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{
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dict = pdfioObjGetDict(obj);
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printf(" %u %u obj dict=%p(%lu pairs)\n", (unsigned)pdfioObjGetNumber(obj), (unsigned)pdfioObjGetGeneration(obj), dict, dict ? (unsigned long)dict->num_pairs : 0UL);
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fputs(" ", stdout);
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_pdfioValueDebug(&obj->value, stdout);
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putchar('\n');
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}
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}
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// Close the file and return success...
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pdfioFileClose(pdf);
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return (0);
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}
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else
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{
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// Error message will already be displayed so just indicate failure...
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return (1);
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}
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}
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//
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// 'do_unit_tests()' - Do unit tests.
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//
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static int // O - Exit status
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do_unit_tests(void)
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{
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int i; // Looping var
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char filename[256]; // PDF filename
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pdfio_file_t *pdf, // Test PDF file
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*outpdf; // Output PDF file
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bool error = false; // Error callback data
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_pdfio_token_t tb; // Token buffer
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const char *s; // String buffer
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_pdfio_value_t value; // Value
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pdfio_obj_t *color_jpg, // color.jpg image
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*gray_jpg, // gray.jpg image
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*page; // Page from test PDF file
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static const char *complex_dict = // Complex dictionary value
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"<</Annots 5457 0 R/Contents 5469 0 R/CropBox[0 0 595.4 842]/Group 725 0 R"
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"/MediaBox[0 0 595.4 842]/Parent 23513 0 R/Resources<</ColorSpace<<"
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"/CS0 21381 0 R/CS1 21393 0 R>>/ExtGState<</GS0 21420 0 R>>/Font<<"
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"/TT0 21384 0 R/TT1 21390 0 R/TT2 21423 0 R/TT3 21403 0 R/TT4 21397 0 R>>"
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"/ProcSet[/PDF/Text/ImageC]/Properties<</MC0 5472 0 R/MC1 5473 0 R>>"
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"/XObject<</E3Dp0QGN3h9EZL2X 23690 0 R/E6DU0TGl3s9NZT2C 23691 0 R"
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"/ENDB06GH3u9tZT2N 21391 0 R/ENDD0NGM339cZe2F 23692 0 R"
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"/ENDK00GK3c9DZN2n 23693 0 R/EPDB0NGN3Q9GZP2t 23695 0 R"
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"/EpDA0kG03o9rZX21 23696 0 R/Im0 5475 0 R>>>>/Rotate 0/StructParents 2105"
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"/Tabs/S/Type/Page>>";
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setbuf(stdout, NULL);
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// First open the test PDF file...
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fputs("pdfioFileOpen(\"testfiles/testpdfio.pdf\"): ", stdout);
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if ((pdf = pdfioFileOpen("testfiles/testpdfio.pdf", (pdfio_error_cb_t)error_cb, &error)) != NULL)
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puts("PASS");
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else
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return (1);
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// TODO: Test for known values in this test file.
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// Test the value parsers for edge cases...
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fputs("_pdfioValueRead(complex_dict): ", stdout);
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s = complex_dict;
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_pdfioTokenInit(&tb, pdf, (_pdfio_tconsume_cb_t)token_consume_cb, (_pdfio_tpeek_cb_t)token_peek_cb, &s);
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if (_pdfioValueRead(pdf, &tb, &value))
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{
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// TODO: Check value...
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puts("PASS");
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}
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else
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return (1);
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// Create a new PDF file...
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fputs("pdfioFileCreate(\"testpdfio-out.pdf\", ...): ", stdout);
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if ((outpdf = pdfioFileCreate("testpdfio-out.pdf", NULL, NULL, NULL, (pdfio_error_cb_t)error_cb, &error)) != NULL)
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puts("PASS");
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else
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return (1);
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// Create some image objects...
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fputs("pdfioFileCreateImageObject(\"testfiles/color.jpg\"): ", stdout);
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if ((color_jpg = pdfioFileCreateImageObject(outpdf, "testfiles/color.jpg", true)) != NULL)
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puts("PASS");
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else
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return (1);
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fputs("pdfioFileCreateImageObject(\"testfiles/gray.jpg\"): ", stdout);
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if ((gray_jpg = pdfioFileCreateImageObject(outpdf, "testfiles/gray.jpg", true)) != NULL)
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puts("PASS");
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else
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return (1);
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// Copy the first page from the test PDF file...
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fputs("pdfioFileGetPage(0): ", stdout);
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if ((page = pdfioFileGetPage(pdf, 0)) != NULL)
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puts("PASS");
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else
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return (1);
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fputs("pdfioPageCopy(first page): ", stdout);
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if (pdfioPageCopy(outpdf, page))
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puts("PASS");
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else
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return (1);
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// Write a few pages...
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for (i = 1; i < 16; i ++)
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{
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if (write_page(outpdf, i, (i & 1) ? color_jpg : gray_jpg))
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return (1);
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}
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// Copy the third page from the test PDF file...
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fputs("pdfioFileGetPage(2): ", stdout);
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if ((page = pdfioFileGetPage(pdf, 2)) != NULL)
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puts("PASS");
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else
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return (1);
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fputs("pdfioPageCopy(third page): ", stdout);
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if (pdfioPageCopy(outpdf, page))
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puts("PASS");
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else
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return (1);
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// Close the test PDF file...
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fputs("pdfioFileClose(\"testfiles/testpdfio.pdf\": ", stdout);
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if (pdfioFileClose(pdf))
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puts("PASS");
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else
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return (1);
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// Close the new PDF file...
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fputs("pdfioFileClose(\"testpdfio-out.pdf\": ", stdout);
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if (pdfioFileClose(outpdf))
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puts("PASS");
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else
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return (1);
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return (0);
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}
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//
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// 'error_cb()' - Display an error message during a unit test.
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//
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static bool // O - `true` to stop, `false` to continue
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error_cb(pdfio_file_t *pdf, // I - PDF file
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const char *message, // I - Error message
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bool *error) // IO - Have we displayed an error?
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{
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(void)pdf;
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if (!*error)
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{
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// First error, so show a "FAIL" indicator
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*error = true;
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puts("FAIL");
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}
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// Indent error messages...
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printf(" %s\n", message);
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// Continue to catch more errors...
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return (false);
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}
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//
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// 'token_consume_cb()' - Consume bytes from a test string.
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//
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static ssize_t // O - Number of bytes consumed
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token_consume_cb(const char **s, // IO - Test string
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size_t bytes) // I - Bytes to consume
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{
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size_t len = strlen(*s); // Number of bytes remaining
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// "Consume" bytes by incrementing the string pointer, limiting to the
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// remaining length...
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if (bytes > len)
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bytes = len;
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*s += bytes;
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return ((ssize_t)bytes);
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}
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//
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// 'token_peek_cb()' - Peek bytes from a test string.
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//
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static ssize_t // O - Number of bytes peeked
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token_peek_cb(const char **s, // IO - Test string
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char *buffer, // I - Buffer
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size_t bytes) // I - Bytes to peek
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{
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size_t len = strlen(*s); // Number of bytes remaining
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// Copy bytes from the test string as possible...
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if (bytes > len)
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bytes = len;
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if (bytes > 0)
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memcpy(buffer, *s, bytes);
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return ((ssize_t)bytes);
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}
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//
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// 'write_page()' - Write a page to a PDF file.
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//
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static int // O - 1 on failure, 0 on success
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write_page(pdfio_file_t *pdf, // I - PDF file
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int number, // I - Page number
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pdfio_obj_t *image) // I - Image to draw
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{
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// TODO: Add font object support...
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pdfio_dict_t *dict; // Page dictionary
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pdfio_stream_t *st; // Page contents stream
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float width, // Width of image
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height; // Height of image
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float swidth, // Scaled width
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sheight, // Scaled height
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tx, // X offset
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ty; // Y offset
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fputs("pdfioDictCreate: ", stdout);
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if ((dict = pdfioDictCreate(pdf)) != NULL)
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puts("PASS");
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else
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return (1);
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fputs("pdfioPageDictAddImage: ", stdout);
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if (pdfioPageDictAddImage(dict, "IM1", image))
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puts("PASS");
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else
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return (1);
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printf("pdfioFileCreatePage(%d): ", number);
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if ((st = pdfioFileCreatePage(pdf, dict)) != NULL)
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puts("PASS");
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else
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return (1);
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fputs("pdfioStreamPuts(...): ", stdout);
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if (pdfioStreamPuts(st,
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"1 0 0 RG 0 g 5 w\n"
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"18 18 559 760 re 72 72 451 648 re B*\n"))
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puts("PASS");
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else
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return (1);
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fputs("pdfioContentSave(): ", stdout);
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if (pdfioContentSave(st))
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puts("PASS");
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else
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return (1);
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fputs("pdfioImageGetWidth(): ", stdout);
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if ((width = pdfioImageGetWidth(image)) > 0.0f)
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puts("PASS");
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else
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return (1);
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fputs("pdfioImageGetHeight(): ", stdout);
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if ((height = pdfioImageGetHeight(image)) > 0.0f)
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puts("PASS");
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else
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return (1);
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swidth = 400.0f;
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sheight = swidth * height / width;
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if (sheight > 600.0f)
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{
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sheight = 600.0f;
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swidth = sheight * width / height;
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}
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tx = 0.5 * (595.28 - swidth);
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ty = 0.5 * (792 - sheight);
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printf("pdfioContentDrawImage(\"IM1\", x=%g, y=%g, w=%g, h=%g): ", tx, ty, swidth, sheight);
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if (pdfioContentDrawImage(st, "IM1", tx, ty, swidth, sheight))
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puts("PASS");
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else
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return (1);
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fputs("pdfioContentRestore(): ", stdout);
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if (pdfioContentRestore(st))
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puts("PASS");
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else
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return (1);
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fputs("pdfioStreamClose: ", stdout);
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if (pdfioStreamClose(st))
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puts("PASS");
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else
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return (1);
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return (0);
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}
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