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Add decode testing to testpdfio

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This commit is contained in:
Michael R Sweet 2021-06-21 16:03:05 -04:00
parent db8be28ff6
commit 01ca711ec8
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GPG Key ID: 999559A027815955
2 changed files with 99 additions and 46 deletions
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2
pdfio-stream.c
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@ -448,6 +448,8 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
st->flate.next_in = (Bytef *)st->cbuffer;
st->flate.avail_in = (uInt)_pdfioFileRead(st->pdf, st->cbuffer, sizeof(st->cbuffer));
PDFIO_DEBUG("_pdfioStreamOpen: avail_in=%u\n", st->flate.avail_in);
if (inflateInit(&(st->flate)) != Z_OK)
{
_pdfioFileError(st->pdf, "Unable to start Flate filter.");

143
testpdfio.c
View File

@ -6,6 +6,12 @@
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
//
// Usage:
//
// ./testpdfio
//
// ./testpdfio FILENAME [OBJECT-NUMBER] [FILENAME [OBJECT-NUMBER]] ...
//
//
// Include necessary headers...
@ -20,7 +26,7 @@
// Local functions...
//
static int do_test_file(const char *filename);
static int do_test_file(const char *filename, int objnum);
static int do_unit_tests(void);
static int draw_image(pdfio_stream_t *st, const char *name, double x, double y, double w, double h, const char *label);
static bool error_cb(pdfio_file_t *pdf, const char *message, bool *error);
@ -52,7 +58,15 @@ main(int argc, // I - Number of command-line arguments
for (i = 1; i < argc; i ++)
{
if (do_test_file(argv[i]))
if ((i + 1) < argc && isdigit(argv[i + 1][0] & 255))
{
// filename.pdf object-number
if (do_test_file(argv[i], atoi(argv[i + 1])))
return (1);
i ++;
}
else if (do_test_file(argv[i], 0))
return (1);
}
}
@ -70,7 +84,8 @@ main(int argc, // I - Number of command-line arguments
//
static int // O - Exit status
do_test_file(const char *filename) // I - PDF filename
do_test_file(const char *filename, // I - PDF filename
int objnum) // I - Object number to dump, if any
{
bool error = false; // Have we shown an error yet?
pdfio_file_t *pdf; // PDF file
@ -82,59 +97,95 @@ do_test_file(const char *filename) // I - PDF filename
// Try opening the file...
printf("pdfioFileOpen(\"%s\", ...): ", filename);
if (!objnum)
printf("pdfioFileOpen(\"%s\", ...): ", filename);
if ((pdf = pdfioFileOpen(filename, (pdfio_error_cb_t)error_cb, &error)) != NULL)
{
puts("PASS");
// Show basic stats...
num_objs = pdfioFileGetNumObjs(pdf);
num_pages = pdfioFileGetNumPages(pdf);
printf(" PDF %s, %d pages, %d objects.\n", pdfioFileGetVersion(pdf), (int)num_pages, (int)num_objs);
// Show a summary of each page...
for (n = 0; n < num_pages; n ++)
if (objnum)
{
if ((obj = pdfioFileGetPage(pdf, n)) == NULL)
const char *filter; // Stream filter
pdfio_stream_t *st; // Stream
char buffer[8192]; // Read buffer
ssize_t bytes; // Bytes read
if ((obj = pdfioFileFindObj(pdf, (size_t)objnum)) == NULL)
{
printf("%s: Unable to get page #%d.\n", filename, (int)n + 1);
puts("Not found.");
return (1);
}
else
if ((dict = pdfioObjGetDict(obj)) == NULL)
{
pdfio_rect_t media_box; // MediaBox value
memset(&media_box, 0, sizeof(media_box));
dict = pdfioObjGetDict(obj);
if (!pdfioDictGetRect(dict, "MediaBox", &media_box))
{
if ((obj = pdfioDictGetObj(dict, "Parent")) != NULL)
{
dict = pdfioObjGetDict(obj);
pdfioDictGetRect(dict, "MediaBox", &media_box);
}
}
printf(" Page #%d is %gx%g.\n", (int)n + 1, media_box.x2, media_box.y2);
puts("Not a stream.");
return (1);
}
filter = pdfioDictGetName(dict, "Filter");
if ((st = pdfioObjOpenStream(obj, (filter && !strcmp(filter, "FlateDecode")) ? PDFIO_FILTER_FLATE : PDFIO_FILTER_NONE)) == NULL)
return (1);
while ((bytes = pdfioStreamRead(st, buffer, sizeof(buffer))) > 0)
fwrite(buffer, 1, (size_t)bytes, stdout);
pdfioStreamClose(st);
return (0);
}
// Show the associated value with each object...
for (n = 0; n < num_objs; n ++)
else
{
if ((obj = pdfioFileGetObj(pdf, n)) == NULL)
{
printf(" Unable to get object #%d.\n", (int)n);
}
else
{
dict = pdfioObjGetDict(obj);
puts("PASS");
printf(" %u %u obj dict=%p(%lu pairs)\n", (unsigned)pdfioObjGetNumber(obj), (unsigned)pdfioObjGetGeneration(obj), dict, dict ? (unsigned long)dict->num_pairs : 0UL);
fputs(" ", stdout);
_pdfioValueDebug(&obj->value, stdout);
putchar('\n');
// Show basic stats...
num_objs = pdfioFileGetNumObjs(pdf);
num_pages = pdfioFileGetNumPages(pdf);
printf(" PDF %s, %d pages, %d objects.\n", pdfioFileGetVersion(pdf), (int)num_pages, (int)num_objs);
// Show a summary of each page...
for (n = 0; n < num_pages; n ++)
{
if ((obj = pdfioFileGetPage(pdf, n)) == NULL)
{
printf("%s: Unable to get page #%d.\n", filename, (int)n + 1);
}
else
{
pdfio_rect_t media_box; // MediaBox value
memset(&media_box, 0, sizeof(media_box));
dict = pdfioObjGetDict(obj);
if (!pdfioDictGetRect(dict, "MediaBox", &media_box))
{
if ((obj = pdfioDictGetObj(dict, "Parent")) != NULL)
{
dict = pdfioObjGetDict(obj);
pdfioDictGetRect(dict, "MediaBox", &media_box);
}
}
printf(" Page #%d is %gx%g.\n", (int)n + 1, media_box.x2, media_box.y2);
}
}
// Show the associated value with each object...
for (n = 0; n < num_objs; n ++)
{
if ((obj = pdfioFileGetObj(pdf, n)) == NULL)
{
printf(" Unable to get object #%d.\n", (int)n);
}
else
{
dict = pdfioObjGetDict(obj);
printf(" %u %u obj dict=%p(%lu pairs)\n", (unsigned)pdfioObjGetNumber(obj), (unsigned)pdfioObjGetGeneration(obj), dict, dict ? (unsigned long)dict->num_pairs : 0UL);
fputs(" ", stdout);
_pdfioValueDebug(&obj->value, stdout);
putchar('\n');
}
}
}