Fix some issues with the core file writing code.

Add test images to the unit tests.

Makefile

@@ -16,7 +16,7 @@ ARFLAGS		=	cr
 CC		=	cc
 CFLAGS		=
 CODESIGN_IDENTITY =	Developer ID
-COMMONFLAGS	=	-Os -g
+COMMONFLAGS	=	-g
 CPPFLAGS	=
 DESTDIR		=	$(DSTROOT)
 DSO		=	cc

pdfio-content.c

@@ -827,11 +827,35 @@ pdfioPageDictAddImage(
     const char   *name,			// I - Image name
     pdfio_obj_t  *obj)			// I - Image object
 {
-  (void)dict;
-  (void)name;
-  (void)obj;
+  pdfio_dict_t	*resources;		// Resource dictionary
+  pdfio_dict_t	*xobject;		// XObject dictionary
 
-  return (false);
+
+  // Range check input...
+  if (!dict || !name || !obj)
+    return (false);
+
+  // Get the images dictionary...
+  if ((resources = pdfioDictGetDict(dict, "Resources")) == NULL)
+  {
+    if ((resources = pdfioDictCreate(dict->pdf)) == NULL)
+      return (false);
+
+    if (!pdfioDictSetDict(dict, "Resources", resources))
+      return (false);
+  }
+
+  if ((xobject = pdfioDictGetDict(resources, "XObject")) == NULL)
+  {
+    if ((xobject = pdfioDictCreate(dict->pdf)) == NULL)
+      return (false);
+
+    if (!pdfioDictSetDict(resources, "XObject", xobject))
+      return (false);
+  }
+
+  // Now set the image reference in the images resource dictionary and return...
+  return (pdfioDictSetObject(xobject, name, obj));
 }
 
 

pdfio-dict.c

@@ -801,7 +801,7 @@ _pdfioDictWrite(pdfio_dict_t *dict,	// I - Dictionary
     if (length && !strcmp(pair->key, "Length") && pair->value.type == PDFIO_VALTYPE_NUMBER && pair->value.value.number <= 0.0f)
     {
       // Writing an object dictionary with an undefined length
-      *length = _pdfioFileTell(pdf);
+      *length = _pdfioFileTell(pdf) + 1;
       if (!_pdfioFilePuts(pdf, " 9999999999"))
         return (false);
     }

pdfio-file.c

@@ -180,6 +180,8 @@ pdfioFileCreate(
   pdf->mode       = _PDFIO_MODE_WRITE;
   pdf->error_cb   = error_cb;
   pdf->error_data = error_data;
+  pdf->bufptr     = pdf->buffer;
+  pdf->bufend     = pdf->buffer + sizeof(pdf->buffer);
 
   if (media_box)
   {
@@ -348,7 +350,7 @@ pdfioFileCreatePage(pdfio_file_t *pdf,	// I - PDF file
 
   // Create a contents object to hold the contents of the page...
   contents_dict = pdfioDictCreate(pdf);
-  pdfioDictSetName(contents_dict, "Filter", "FlateDecode");
+//  pdfioDictSetName(contents_dict, "Filter", "FlateDecode");
 
   contents = pdfioFileCreateObject(pdf, contents_dict);
 
@@ -375,7 +377,8 @@ pdfioFileCreatePage(pdfio_file_t *pdf,	// I - PDF file
   pdf->pages[pdf->num_pages ++] = page;
 
   // Create the contents stream...
-  return (pdfioObjCreateStream(contents, PDFIO_FILTER_FLATE));
+//  return (pdfioObjCreateStream(contents, PDFIO_FILTER_FLATE));
+  return (pdfioObjCreateStream(contents, PDFIO_FILTER_NONE));
 }
 
 

testpdfio.c

@@ -12,6 +12,7 @@
 //
 
 #include "pdfio-private.h"
+#include "pdfio-content.h"
 
 
 //
@@ -23,7 +24,7 @@ static int	do_unit_tests(void);
 static bool	error_cb(pdfio_file_t *pdf, const char *message, bool *error);
 static ssize_t	token_consume_cb(const char **s, size_t bytes);
 static ssize_t	token_peek_cb(const char **s, char *buffer, size_t bytes);
-static int	write_page(pdfio_file_t *pdf, int number);
+static int	write_page(pdfio_file_t *pdf, int number, pdfio_obj_t *image);
 
 
 //
@@ -153,6 +154,8 @@ do_unit_tests(void)
   _pdfio_token_t	tb;		// Token buffer
   const char		*s;		// String buffer
   _pdfio_value_t	value;		// Value
+  pdfio_obj_t		*color_jpg,	// color.jpg image
+			*gray_jpg;	// gray.jpg image
   static const char	*complex_dict =	// Complex dictionary value
     "<</Annots 5457 0 R/Contents 5469 0 R/CropBox[0 0 595.4 842]/Group 725 0 R"
     "/MediaBox[0 0 595.4 842]/Parent 23513 0 R/Resources<</ColorSpace<<"
@@ -166,6 +169,8 @@ do_unit_tests(void)
     "/Tabs/S/Type/Page>>";
 
 
+  setbuf(stdout, NULL);
+
   // First open the test PDF file...
   fputs("pdfioFileOpen(\"testfiles/testpdfio.pdf\"): ", stdout);
   if ((pdf = pdfioFileOpen("testfiles/testpdfio.pdf", (pdfio_error_cb_t)error_cb, &error)) != NULL)
@@ -195,9 +200,21 @@ do_unit_tests(void)
     return (1);
 
   // Create a new PDF file...
-  snprintf(filename, sizeof(filename), "testpdfio-%d.pdf", (int)getpid());
-  printf("pdfioFileCreate(\"%s\", ...): ", filename);
-  if ((pdf = pdfioFileCreate(filename, NULL, NULL, NULL, (pdfio_error_cb_t)error_cb, &error)) != NULL)
+  fputs("pdfioFileCreate(\"testpdfio-out.pdf\", ...): ", stdout);
+  if ((pdf = pdfioFileCreate("testpdfio-out.pdf", NULL, NULL, NULL, (pdfio_error_cb_t)error_cb, &error)) != NULL)
+    puts("PASS");
+  else
+    return (1);
+
+  // Create some image objects...
+  fputs("pdfioFileCreateImageObject(\"testfiles/color.jpg\"): ", stdout);
+  if ((color_jpg = pdfioFileCreateImageObject(pdf, "testfiles/color.jpg", true)) != NULL)
+    puts("PASS");
+  else
+    return (1);
+
+  fputs("pdfioFileCreateImageObject(\"testfiles/gray.jpg\"): ", stdout);
+  if ((gray_jpg = pdfioFileCreateImageObject(pdf, "testfiles/gray.jpg", true)) != NULL)
     puts("PASS");
   else
     return (1);
@@ -205,7 +222,7 @@ do_unit_tests(void)
   // Write a few pages...
   for (i = 1; i < 18; i ++)
   {
-    if (write_page(pdf, i))
+    if (write_page(pdf, i, (i & 1) ? color_jpg : gray_jpg))
       return (1);
   }
 
@@ -298,15 +315,29 @@ token_peek_cb(const char **s,		// IO - Test string
 
 static int				// O - 1 on failure, 0 on success
 write_page(pdfio_file_t *pdf,		// I - PDF file
-           int          number)		// I - Page number
+           int          number,		// I - Page number
+           pdfio_obj_t  *image)		// I - Image to draw
 {
   // TODO: Add font object support...
+  pdfio_dict_t		*dict;		// Page dictionary
   pdfio_stream_t	*st;		// Page contents stream
 
 
+  fputs("pdfioDictCreate: ", stdout);
+  if ((dict = pdfioDictCreate(pdf)) != NULL)
+    puts("PASS");
+  else
+    return (1);
+
+  fputs("pdfioPageDictAddImage: ", stdout);
+  if (pdfioPageDictAddImage(dict, "IM1", image))
+    puts("PASS");
+  else
+    return (1);
+
   printf("pdfioFileCreatePage(%d): ", number);
 
-  if ((st = pdfioFileCreatePage(pdf, NULL)) != NULL)
+  if ((st = pdfioFileCreatePage(pdf, dict)) != NULL)
     puts("PASS");
   else
     return (1);
@@ -319,6 +350,36 @@ write_page(pdfio_file_t *pdf,		// I - PDF file
   else
     return (1);
 
+  fputs("pdfioContentSave(): ", stdout);
+  if (pdfioContentSave(st))
+    puts("PASS");
+  else
+    return (1);
+
+  fputs("pdfioContentMatrixScale(72.0, 72.0): ", stdout);
+  if (pdfioContentMatrixScale(st, 72.0f, 72.0f))
+    puts("PASS");
+  else
+    return (1);
+
+//  fputs("pdfioContentTranslate(144.0, 144.0): ", stdout);
+//  if (pdfioContentMatrixTranslate(st, 144.0f, 144.0f))
+//    puts("PASS");
+//  else
+//    return (1);
+
+  fputs("pdfioContentDrawImage(\"IM1\"): ", stdout);
+  if (pdfioContentDrawImage(st, "IM1"))
+    puts("PASS");
+  else
+    return (1);
+
+  fputs("pdfioContentRestore(): ", stdout);
+  if (pdfioContentRestore(st))
+    puts("PASS");
+  else
+    return (1);
+
   fputs("pdfioStreamClose: ", stdout);
   if (pdfioStreamClose(st))
     puts("PASS");