1 files changed, 254 insertions, 0 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c b/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c
new file mode 100644
index 0000000..8eacf9f
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c
@@ -0,0 +1,254 @@
+/* pngwio.c - functions for data output
+ *
+ * Last changed in libpng 1.5.0 [January 6, 2011]
+ * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
+ * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ *
+ * This file provides a location for all output.  Users who need
+ * special handling are expected to write functions that have the same
+ * arguments as these and perform similar functions, but that possibly
+ * use different output methods.  Note that you shouldn't change these
+ * functions, but rather write replacement functions and then change
+ * them at run time with png_set_write_fn(...).
+ */
+#include "pngpriv.h"
+#ifdef PNG_WRITE_SUPPORTED
+/* Write the data to whatever output you are using.  The default routine
+ * writes to a file pointer.  Note that this routine sometimes gets called
+ * with very small lengths, so you should implement some kind of simple
+ * buffering if you are using unbuffered writes.  This should never be asked
+ * to write more than 64K on a 16 bit machine.
+ */
+void /* PRIVATE */
+png_write_data(png_structp png_ptr, png_const_bytep data, png_size_t length)
+{
+   /* NOTE: write_data_fn must not change the buffer! */
+   if (png_ptr->write_data_fn != NULL )
+      (*(png_ptr->write_data_fn))(png_ptr, (png_bytep)data, length);
+   else
+      png_error(png_ptr, "Call to NULL write function");
+}
+#ifdef PNG_STDIO_SUPPORTED
+/* This is the function that does the actual writing of data.  If you are
+ * not writing to a standard C stream, you should create a replacement
+ * write_data function and use it at run time with png_set_write_fn(), rather
+ * than changing the library.
+ */
+#ifndef USE_FAR_KEYWORD
+void PNGCBAPI
+png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+{
+   png_size_t check;
+   if (png_ptr == NULL)
+      return;
+   check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr));
+   if (check != length)
+      png_error(png_ptr, "Write Error");
+}
+#else
+/* This is the model-independent version. Since the standard I/O library
+ * can't handle far buffers in the medium and small models, we have to copy
+ * the data.
+ */
+#define NEAR_BUF_SIZE 1024
+#define MIN(a,b) (a <= b ? a : b)
+void PNGCBAPI
+png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+{
+   png_uint_32 check;
+   png_byte *near_data;  /* Needs to be "png_byte *" instead of "png_bytep" */
+   png_FILE_p io_ptr;
+   if (png_ptr == NULL)
+      return;
+   /* Check if data really is near. If so, use usual code. */
+   near_data = (png_byte *)CVT_PTR_NOCHECK(data);
+   io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
+   if ((png_bytep)near_data == data)
+   {
+      check = fwrite(near_data, 1, length, io_ptr);
+   }
+   else
+   {
+      png_byte buf[NEAR_BUF_SIZE];
+      png_size_t written, remaining, err;
+      check = 0;
+      remaining = length;
+      do
+      {
+         written = MIN(NEAR_BUF_SIZE, remaining);
+         png_memcpy(buf, data, written); /* Copy far buffer to near buffer */
+         err = fwrite(buf, 1, written, io_ptr);
+         if (err != written)
+            break;
+         else
+            check += err;
+         data += written;
+         remaining -= written;
+      }
+      while (remaining != 0);
+   }
+   if (check != length)
+      png_error(png_ptr, "Write Error");
+}
+#endif
+#endif
+/* This function is called to output any data pending writing (normally
+ * to disk).  After png_flush is called, there should be no data pending
+ * writing in any buffers.
+ */
+#ifdef PNG_WRITE_FLUSH_SUPPORTED
+void /* PRIVATE */
+png_flush(png_structp png_ptr)
+{
+   if (png_ptr->output_flush_fn != NULL)
+      (*(png_ptr->output_flush_fn))(png_ptr);
+}
+#  ifdef PNG_STDIO_SUPPORTED
+void PNGCBAPI
+png_default_flush(png_structp png_ptr)
+{
+   png_FILE_p io_ptr;
+   if (png_ptr == NULL)
+      return;
+   io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr));
+   fflush(io_ptr);
+}
+#  endif
+#endif
+/* This function allows the application to supply new output functions for
+ * libpng if standard C streams aren't being used.
+ *
+ * This function takes as its arguments:
+ * png_ptr       - pointer to a png output data structure
+ * io_ptr        - pointer to user supplied structure containing info about
+ *                 the output functions.  May be NULL.
+ * write_data_fn - pointer to a new output function that takes as its
+ *                 arguments a pointer to a png_struct, a pointer to
+ *                 data to be written, and a 32-bit unsigned int that is
+ *                 the number of bytes to be written.  The new write
+ *                 function should call png_error(png_ptr, "Error msg")
+ *                 to exit and output any fatal error messages.  May be
+ *                 NULL, in which case libpng's default function will
+ *                 be used.
+ * flush_data_fn - pointer to a new flush function that takes as its
+ *                 arguments a pointer to a png_struct.  After a call to
+ *                 the flush function, there should be no data in any buffers
+ *                 or pending transmission.  If the output method doesn't do
+ *                 any buffering of output, a function prototype must still be
+ *                 supplied although it doesn't have to do anything.  If
+ *                 PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
+ *                 time, output_flush_fn will be ignored, although it must be
+ *                 supplied for compatibility.  May be NULL, in which case
+ *                 libpng's default function will be used, if
+ *                 PNG_WRITE_FLUSH_SUPPORTED is defined.  This is not
+ *                 a good idea if io_ptr does not point to a standard
+ *                 *FILE structure.
+ */
+void PNGAPI
+png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
+    png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)
+{
+   if (png_ptr == NULL)
+      return;
+   png_ptr->io_ptr = io_ptr;
+#ifdef PNG_STDIO_SUPPORTED
+   if (write_data_fn != NULL)
+      png_ptr->write_data_fn = write_data_fn;
+   else
+      png_ptr->write_data_fn = png_default_write_data;
+#else
+   png_ptr->write_data_fn = write_data_fn;
+#endif
+#ifdef PNG_WRITE_FLUSH_SUPPORTED
+#  ifdef PNG_STDIO_SUPPORTED
+   if (output_flush_fn != NULL)
+      png_ptr->output_flush_fn = output_flush_fn;
+   else
+      png_ptr->output_flush_fn = png_default_flush;
+#  else
+   png_ptr->output_flush_fn = output_flush_fn;
+#  endif
+#endif /* PNG_WRITE_FLUSH_SUPPORTED */
+   /* It is an error to read while writing a png file */
+   if (png_ptr->read_data_fn != NULL)
+   {
+      png_ptr->read_data_fn = NULL;
+      png_warning(png_ptr,
+          "Can't set both read_data_fn and write_data_fn in the"
+          " same structure");
+   }
+}
+#ifdef USE_FAR_KEYWORD
+#  ifdef _MSC_VER
+void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
+{
+   void *near_ptr;
+   void FAR *far_ptr;
+   FP_OFF(near_ptr) = FP_OFF(ptr);
+   far_ptr = (void FAR *)near_ptr;
+   if (check != 0)
+      if (FP_SEG(ptr) != FP_SEG(far_ptr))
+         png_error(png_ptr, "segment lost in conversion");
+   return(near_ptr);
+}
+#  else
+void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
+{
+   void *near_ptr;
+   void FAR *far_ptr;
+   near_ptr = (void FAR *)ptr;
+   far_ptr = (void FAR *)near_ptr;
+   if (check != 0)
+      if (far_ptr != ptr)
+         png_error(png_ptr, "segment lost in conversion");
+   return(near_ptr);
+}
+#  endif
+#endif
+#endif /* PNG_WRITE_SUPPORTED */

diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c b/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c new file mode 100644 index 0000000..8eacf9f --- /dev/null +++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c
@@ -0,0 +1,254 @@
	1
	2	/* pngwio.c - functions for data output
	3	*
	4	* Last changed in libpng 1.5.0 [January 6, 2011]
	5	* Copyright (c) 1998-2011 Glenn Randers-Pehrson
	6	* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
	7	* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
	8	*
	9	* This code is released under the libpng license.
	10	* For conditions of distribution and use, see the disclaimer
	11	* and license in png.h
	12	*
	13	* This file provides a location for all output. Users who need
	14	* special handling are expected to write functions that have the same
	15	* arguments as these and perform similar functions, but that possibly
	16	* use different output methods. Note that you shouldn't change these
	17	* functions, but rather write replacement functions and then change
	18	* them at run time with png_set_write_fn(...).
	19	*/
	20
	21	#include "pngpriv.h"
	22
	23	#ifdef PNG_WRITE_SUPPORTED
	24
	25	/* Write the data to whatever output you are using. The default routine
	26	* writes to a file pointer. Note that this routine sometimes gets called
	27	* with very small lengths, so you should implement some kind of simple
	28	* buffering if you are using unbuffered writes. This should never be asked
	29	* to write more than 64K on a 16 bit machine.
	30	*/
	31
	32	void /* PRIVATE */
	33	png_write_data(png_structp png_ptr, png_const_bytep data, png_size_t length)
	34	{
	35	/* NOTE: write_data_fn must not change the buffer! */
	36	if (png_ptr->write_data_fn != NULL )
	37	(*(png_ptr->write_data_fn))(png_ptr, (png_bytep)data, length);
	38
	39	else
	40	png_error(png_ptr, "Call to NULL write function");
	41	}
	42
	43	#ifdef PNG_STDIO_SUPPORTED
	44	/* This is the function that does the actual writing of data. If you are
	45	* not writing to a standard C stream, you should create a replacement
	46	* write_data function and use it at run time with png_set_write_fn(), rather
	47	* than changing the library.
	48	*/
	49	#ifndef USE_FAR_KEYWORD
	50	void PNGCBAPI
	51	png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
	52	{
	53	png_size_t check;
	54
	55	if (png_ptr == NULL)
	56	return;
	57
	58	check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr));
	59
	60	if (check != length)
	61	png_error(png_ptr, "Write Error");
	62	}
	63	#else
	64	/* This is the model-independent version. Since the standard I/O library
	65	* can't handle far buffers in the medium and small models, we have to copy
	66	* the data.
	67	*/
	68
	69	#define NEAR_BUF_SIZE 1024
	70	#define MIN(a,b) (a <= b ? a : b)
	71
	72	void PNGCBAPI
	73	png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
	74	{
	75	png_uint_32 check;
	76	png_byte near_data; / Needs to be "png_byte " instead of "png_bytep" /
	77	png_FILE_p io_ptr;
	78
	79	if (png_ptr == NULL)
	80	return;
	81
	82	/* Check if data really is near. If so, use usual code. */
	83	near_data = (png_byte *)CVT_PTR_NOCHECK(data);
	84	io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
	85
	86	if ((png_bytep)near_data == data)
	87	{
	88	check = fwrite(near_data, 1, length, io_ptr);
	89	}
	90
	91	else
	92	{
	93	png_byte buf[NEAR_BUF_SIZE];
	94	png_size_t written, remaining, err;
	95	check = 0;
	96	remaining = length;
	97
	98	do
	99	{
	100	written = MIN(NEAR_BUF_SIZE, remaining);
	101	png_memcpy(buf, data, written); /* Copy far buffer to near buffer */
	102	err = fwrite(buf, 1, written, io_ptr);
	103
	104	if (err != written)
	105	break;
	106
	107	else
	108	check += err;
	109
	110	data += written;
	111	remaining -= written;
	112	}
	113	while (remaining != 0);
	114	}
	115
	116	if (check != length)
	117	png_error(png_ptr, "Write Error");
	118	}
	119
	120	#endif
	121	#endif
	122
	123	/* This function is called to output any data pending writing (normally
	124	* to disk). After png_flush is called, there should be no data pending
	125	* writing in any buffers.
	126	*/
	127	#ifdef PNG_WRITE_FLUSH_SUPPORTED
	128	void /* PRIVATE */
	129	png_flush(png_structp png_ptr)
	130	{
	131	if (png_ptr->output_flush_fn != NULL)
	132	(*(png_ptr->output_flush_fn))(png_ptr);
	133	}
	134
	135	# ifdef PNG_STDIO_SUPPORTED
	136	void PNGCBAPI
	137	png_default_flush(png_structp png_ptr)
	138	{
	139	png_FILE_p io_ptr;
	140
	141	if (png_ptr == NULL)
	142	return;
	143
	144	io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr));
	145	fflush(io_ptr);
	146	}
	147	# endif
	148	#endif
	149
	150	/* This function allows the application to supply new output functions for
	151	* libpng if standard C streams aren't being used.
	152	*
	153	* This function takes as its arguments:
	154	* png_ptr - pointer to a png output data structure
	155	* io_ptr - pointer to user supplied structure containing info about
	156	* the output functions. May be NULL.
	157	* write_data_fn - pointer to a new output function that takes as its
	158	* arguments a pointer to a png_struct, a pointer to
	159	* data to be written, and a 32-bit unsigned int that is
	160	* the number of bytes to be written. The new write
	161	* function should call png_error(png_ptr, "Error msg")
	162	* to exit and output any fatal error messages. May be
	163	* NULL, in which case libpng's default function will
	164	* be used.
	165	* flush_data_fn - pointer to a new flush function that takes as its
	166	* arguments a pointer to a png_struct. After a call to
	167	* the flush function, there should be no data in any buffers
	168	* or pending transmission. If the output method doesn't do
	169	* any buffering of output, a function prototype must still be
	170	* supplied although it doesn't have to do anything. If
	171	* PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
	172	* time, output_flush_fn will be ignored, although it must be
	173	* supplied for compatibility. May be NULL, in which case
	174	* libpng's default function will be used, if
	175	* PNG_WRITE_FLUSH_SUPPORTED is defined. This is not
	176	* a good idea if io_ptr does not point to a standard
	177	* *FILE structure.
	178	*/
	179	void PNGAPI
	180	png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
	181	png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)
	182	{
	183	if (png_ptr == NULL)
	184	return;
	185
	186	png_ptr->io_ptr = io_ptr;
	187
	188	#ifdef PNG_STDIO_SUPPORTED
	189	if (write_data_fn != NULL)
	190	png_ptr->write_data_fn = write_data_fn;
	191
	192	else
	193	png_ptr->write_data_fn = png_default_write_data;
	194	#else
	195	png_ptr->write_data_fn = write_data_fn;
	196	#endif
	197
	198	#ifdef PNG_WRITE_FLUSH_SUPPORTED
	199	# ifdef PNG_STDIO_SUPPORTED
	200
	201	if (output_flush_fn != NULL)
	202	png_ptr->output_flush_fn = output_flush_fn;
	203
	204	else
	205	png_ptr->output_flush_fn = png_default_flush;
	206
	207	# else
	208	png_ptr->output_flush_fn = output_flush_fn;
	209	# endif
	210	#endif /* PNG_WRITE_FLUSH_SUPPORTED */
	211
	212	/* It is an error to read while writing a png file */
	213	if (png_ptr->read_data_fn != NULL)
	214	{
	215	png_ptr->read_data_fn = NULL;
	216
	217	png_warning(png_ptr,
	218	"Can't set both read_data_fn and write_data_fn in the"
	219	" same structure");
	220	}
	221	}
	222
	223	#ifdef USE_FAR_KEYWORD
	224	# ifdef _MSC_VER
	225	void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
	226	{
	227	void *near_ptr;
	228	void FAR *far_ptr;
	229	FP_OFF(near_ptr) = FP_OFF(ptr);
	230	far_ptr = (void FAR *)near_ptr;
	231
	232	if (check != 0)
	233	if (FP_SEG(ptr) != FP_SEG(far_ptr))
	234	png_error(png_ptr, "segment lost in conversion");
	235
	236	return(near_ptr);
	237	}
	238	# else
	239	void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
	240	{
	241	void *near_ptr;
	242	void FAR *far_ptr;
	243	near_ptr = (void FAR *)ptr;
	244	far_ptr = (void FAR *)near_ptr;
	245
	246	if (check != 0)
	247	if (far_ptr != ptr)
	248	png_error(png_ptr, "segment lost in conversion");
	249
	250	return(near_ptr);
	251	}
	252	# endif
	253	#endif
	254	#endif /* PNG_WRITE_SUPPORTED */