XFA: Move fx_codec's lpng and tiff to third_party/

We did this with the other codecs in master, but these two are
XFA-only, and did not get the same treatment.

Remove some fx_ prefixes in the third-party file names.

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1392373004 .

1 files changed, 163 insertions, 0 deletions

diff --git a/third_party/lpng_v163/pngwio.c b/third_party/lpng_v163/pngwio.c
new file mode 100644
index 0000000000..9268c163b0
--- /dev/null
+++ b/third_party/lpng_v163/pngwio.c
@@ -0,0 +1,163 @@
+

+/* pngwio.c - functions for data output

+ *

+ * Last changed in libpng 1.6.0 [February 14, 2013]

+ * Copyright (c) 1998-2013 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_structrp 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_constcast(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.

+ */

+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");

+}

+#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_structrp 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_voidcast(png_FILE_p, (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_structrp 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");

+   }

+}

+#endif /* PNG_WRITE_SUPPORTED */