Updating libpng: Patches to libpng for building it in Qt

3 files changed, 190 insertions, 5 deletions

diff --git a/src/3rdparty/libpng/pngconf.h b/src/3rdparty/libpng/pngconf.h
index 2633bf8..d0b3454 100644
--- a/src/3rdparty/libpng/pngconf.h
+++ b/src/3rdparty/libpng/pngconf.h
@@ -34,7 +34,7 @@
  * because this file defines png_memcpy and so on the base APIs must
  * be defined here.
  */
-#ifdef BSD
+#if defined(BSD) && !defined(VXWORKS)
 #  include <strings.h>
 #else
 #  include <string.h>
@@ -195,7 +195,7 @@
 #    define PNGCAPI __watcall
 #  endif
 
-#  if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
+#  if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) || defined(__WINSCW__)
 #    define PNGCAPI __cdecl
 #    if PNG_API_RULE == 1
 #      define PNGAPI __stdcall
@@ -277,6 +277,13 @@
 #    endif
 #  endif
 
+#   if !defined(PNG_IMPEXP)
+#       include <qconfig.h>
+#       if defined(QT_VISIBILITY_AVAILABLE)
+#           define PNG_IMPEXP __attribute__((visibility("default")))
+#       endif
+#   endif
+
 #  ifndef PNG_IMPEXP
 #    define PNG_IMPEXP
 #  endif
diff --git a/src/3rdparty/libpng/pnglibconf.h b/src/3rdparty/libpng/pnglibconf.h
new file mode 100644
index 0000000..b1d2169
--- /dev/null
+++ b/src/3rdparty/libpng/pnglibconf.h
@@ -0,0 +1,176 @@
+
+/* libpng STANDARD API DEFINITION */
+
+/* pnglibconf.h - library build configuration */
+
+/* libpng version 1.5.0 - last changed on January 6, 2011 */
+
+/* Copyright (c) 1998-2011 Glenn Randers-Pehrson */
+
+/* This code is released under the libpng license. */
+/* For conditions of distribution and use, see the disclaimer */
+/* and license in png.h */
+
+/* pnglibconf.h */
+/* Machine generated file: DO NOT EDIT */
+/* Derived from: scripts/pnglibconf.dfa */
+#ifndef PNGLCONF_H
+#define PNGLCONF_H
+/* settings */
+#define PNG_MAX_GAMMA_8 11
+#define PNG_CALLOC_SUPPORTED
+#define PNG_QUANTIZE_RED_BITS 5
+#define PNG_USER_WIDTH_MAX 1000000L
+#define PNG_QUANTIZE_GREEN_BITS 5
+#define PNG_API_RULE 0
+#define PNG_QUANTIZE_BLUE_BITS 5
+#define PNG_USER_CHUNK_CACHE_MAX 0
+#define PNG_USER_HEIGHT_MAX 1000000L
+#define PNG_sCAL_PRECISION 5
+#define PNG_COST_SHIFT 3
+#define PNG_WEIGHT_SHIFT 8
+#define PNG_USER_CHUNK_MALLOC_MAX 0
+#define PNG_DEFAULT_READ_MACROS 1
+#define PNG_ZBUF_SIZE 8192
+#define PNG_GAMMA_THRESHOLD_FIXED 5000
+/* end of settings */
+/* options */
+#define PNG_INFO_IMAGE_SUPPORTED
+#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
+#define PNG_POINTER_INDEXING_SUPPORTED
+#define PNG_WARNINGS_SUPPORTED
+#define PNG_FLOATING_ARITHMETIC_SUPPORTED
+#define PNG_WRITE_SUPPORTED
+#define PNG_WRITE_INTERLACING_SUPPORTED
+#define PNG_WRITE_16BIT_SUPPORTED
+#define PNG_EASY_ACCESS_SUPPORTED
+#define PNG_ALIGN_MEMORY_SUPPORTED
+#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
+#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
+#define PNG_USER_LIMITS_SUPPORTED
+#define PNG_FIXED_POINT_SUPPORTED
+/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
+#define PNG_ERROR_TEXT_SUPPORTED
+#define PNG_READ_SUPPORTED
+/*#undef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED*/
+#define PNG_BENIGN_ERRORS_SUPPORTED
+#define PNG_SETJMP_SUPPORTED
+#define PNG_WRITE_FLUSH_SUPPORTED
+#define PNG_MNG_FEATURES_SUPPORTED
+#define PNG_FLOATING_POINT_SUPPORTED
+#define PNG_INCH_CONVERSIONS_SUPPORTED
+#define PNG_STDIO_SUPPORTED
+#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
+#define PNG_USER_MEM_SUPPORTED
+#define PNG_IO_STATE_SUPPORTED
+#define PNG_SET_USER_LIMITS_SUPPORTED
+#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
+#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
+#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
+#define PNG_WRITE_FILTER_SUPPORTED
+#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
+#define PNG_WRITE_iCCP_SUPPORTED
+#define PNG_READ_TRANSFORMS_SUPPORTED
+#define PNG_READ_GAMMA_SUPPORTED
+#define PNG_READ_bKGD_SUPPORTED
+#define PNG_UNKNOWN_CHUNKS_SUPPORTED
+#define PNG_READ_sCAL_SUPPORTED
+#define PNG_WRITE_hIST_SUPPORTED
+#define PNG_READ_OPT_PLTE_SUPPORTED
+#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
+#define PNG_WRITE_gAMA_SUPPORTED
+#define PNG_READ_GRAY_TO_RGB_SUPPORTED
+#define PNG_WRITE_pCAL_SUPPORTED
+#define PNG_READ_INVERT_ALPHA_SUPPORTED
+#define PNG_WRITE_TRANSFORMS_SUPPORTED
+#define PNG_READ_sBIT_SUPPORTED
+#define PNG_READ_PACK_SUPPORTED
+#define PNG_WRITE_SWAP_SUPPORTED
+#define PNG_READ_cHRM_SUPPORTED
+#define PNG_WRITE_tIME_SUPPORTED
+#define PNG_READ_INTERLACING_SUPPORTED
+#define PNG_READ_tRNS_SUPPORTED
+#define PNG_WRITE_pHYs_SUPPORTED
+#define PNG_WRITE_INVERT_SUPPORTED
+#define PNG_READ_RGB_TO_GRAY_SUPPORTED
+#define PNG_WRITE_sRGB_SUPPORTED
+#define PNG_READ_oFFs_SUPPORTED
+#define PNG_WRITE_FILLER_SUPPORTED
+#define PNG_WRITE_TEXT_SUPPORTED
+#define PNG_WRITE_SHIFT_SUPPORTED
+#define PNG_PROGRESSIVE_READ_SUPPORTED
+#define PNG_READ_SHIFT_SUPPORTED
+#define PNG_CONVERT_tIME_SUPPORTED
+#define PNG_READ_USER_TRANSFORM_SUPPORTED
+#define PNG_READ_INT_FUNCTIONS_SUPPORTED
+#define PNG_READ_USER_CHUNKS_SUPPORTED
+#define PNG_READ_hIST_SUPPORTED
+#define PNG_READ_16BIT_SUPPORTED
+#define PNG_READ_SWAP_ALPHA_SUPPORTED
+#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
+#define PNG_SEQUENTIAL_READ_SUPPORTED
+#define PNG_READ_BACKGROUND_SUPPORTED
+#define PNG_READ_QUANTIZE_SUPPORTED
+#define PNG_READ_iCCP_SUPPORTED
+#define PNG_READ_STRIP_ALPHA_SUPPORTED
+#define PNG_READ_PACKSWAP_SUPPORTED
+#define PNG_READ_sRGB_SUPPORTED
+#define PNG_WRITE_tEXt_SUPPORTED
+#define PNG_READ_gAMA_SUPPORTED
+#define PNG_READ_pCAL_SUPPORTED
+#define PNG_READ_EXPAND_SUPPORTED
+#define PNG_WRITE_sPLT_SUPPORTED
+#define PNG_READ_SWAP_SUPPORTED
+#define PNG_READ_tIME_SUPPORTED
+#define PNG_READ_pHYs_SUPPORTED
+#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
+#define PNG_TIME_RFC1123_SUPPORTED
+#define PNG_READ_TEXT_SUPPORTED
+#define PNG_WRITE_BGR_SUPPORTED
+#define PNG_USER_CHUNKS_SUPPORTED
+#define PNG_CONSOLE_IO_SUPPORTED
+#define PNG_WRITE_PACK_SUPPORTED
+#define PNG_READ_FILLER_SUPPORTED
+#define PNG_WRITE_bKGD_SUPPORTED
+#define PNG_WRITE_tRNS_SUPPORTED
+#define PNG_READ_sPLT_SUPPORTED
+#define PNG_WRITE_sCAL_SUPPORTED
+#define PNG_WRITE_oFFs_SUPPORTED
+#define PNG_READ_tEXt_SUPPORTED
+#define PNG_WRITE_sBIT_SUPPORTED
+#define PNG_READ_INVERT_SUPPORTED
+#define PNG_READ_16_TO_8_SUPPORTED
+#define PNG_WRITE_cHRM_SUPPORTED
+#define PNG_16BIT_SUPPORTED
+#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
+#define PNG_READ_BGR_SUPPORTED
+#define PNG_WRITE_PACKSWAP_SUPPORTED
+#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
+#define PNG_sCAL_SUPPORTED
+#define PNG_WRITE_zTXt_SUPPORTED
+#define PNG_sBIT_SUPPORTED
+#define PNG_cHRM_SUPPORTED
+#define PNG_bKGD_SUPPORTED
+#define PNG_tRNS_SUPPORTED
+#define PNG_WRITE_iTXt_SUPPORTED
+#define PNG_oFFs_SUPPORTED
+#define PNG_USER_TRANSFORM_PTR_SUPPORTED
+#define PNG_USER_TRANSFORM_INFO_SUPPORTED
+#define PNG_hIST_SUPPORTED
+#define PNG_iCCP_SUPPORTED
+#define PNG_sRGB_SUPPORTED
+#define PNG_READ_zTXt_SUPPORTED
+#define PNG_gAMA_SUPPORTED
+#define PNG_pCAL_SUPPORTED
+#define PNG_CHECK_cHRM_SUPPORTED
+#define PNG_tIME_SUPPORTED
+#define PNG_pHYs_SUPPORTED
+#define PNG_READ_iTXt_SUPPORTED
+#define PNG_TEXT_SUPPORTED
+#define PNG_SAVE_INT_32_SUPPORTED
+#define PNG_sPLT_SUPPORTED
+#define PNG_tEXt_SUPPORTED
+#define PNG_zTXt_SUPPORTED
+#define PNG_iTXt_SUPPORTED
+/* end of options */
+#endif /* PNGLCONF_H */
diff --git a/src/3rdparty/libpng/pngpriv.h b/src/3rdparty/libpng/pngpriv.h
index 30ac004..45a622b 100644
--- a/src/3rdparty/libpng/pngpriv.h
+++ b/src/3rdparty/libpng/pngpriv.h
@@ -140,7 +140,7 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
     defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)
    /* png.c requires the following ANSI-C constants if the conversion of
     * floating point to ASCII is implemented therein:
-    * 
+    *
     *  DBL_DIG  Maximum number of decimal digits (can be set to any constant)
     *  DBL_MIN  Smallest normalized fp number (can be set to an arbitrary value)
     *  DBL_MAX  Maximum floating point number (can be set to an arbitrary value)
@@ -175,7 +175,9 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
 
 #if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \
     defined(_WIN32) || defined(__WIN32__)
-#  include <windows.h>  /* defines _WINDOWS_ macro */
+#  if !defined(__SYMBIAN32__)
+#    include <windows.h>  /* defines _WINDOWS_ macro */
+#  endif
 #endif
 
 /* Moved here around 1.5.0beta36 from pngconf.h */
@@ -185,7 +187,7 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
 
 /* Memory model/platform independent fns */
 #ifndef PNG_ABORT
-#  ifdef _WINDOWS_
+#  if defined(_WINDOWS_) || defined(_WIN32_WCE)
 #    define PNG_ABORT() ExitProcess(0)
 #  else
 #    define PNG_ABORT() abort()