--- a/src/3rdparty/libpng/pngpread.c Wed Jun 23 19:07:03 2010 +0300
+++ b/src/3rdparty/libpng/pngpread.c Tue Jul 06 15:10:48 2010 +0300
@@ -1,8 +1,8 @@
/* pngpread.c - read a png file in push mode
*
- * Last changed in libpng 1.2.38 [July 16, 2009]
- * Copyright (c) 1998-2009 Glenn Randers-Pehrson
+ * Last changed in libpng 1.4.0 [January 3, 2010]
+ * Copyright (c) 1998-2010 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.)
*
@@ -11,9 +11,10 @@
* and license in png.h
*/
-#define PNG_INTERNAL
+#define PNG_NO_PEDANTIC_WARNINGS
#include "png.h"
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
+#include "pngpriv.h"
/* Push model modes */
#define PNG_READ_SIG_MODE 0
@@ -70,7 +71,7 @@
break;
}
-#if defined(PNG_READ_tEXt_SUPPORTED)
+#ifdef PNG_READ_tEXt_SUPPORTED
case PNG_READ_tEXt_MODE:
{
png_push_read_tEXt(png_ptr, info_ptr);
@@ -78,7 +79,7 @@
}
#endif
-#if defined(PNG_READ_zTXt_SUPPORTED)
+#ifdef PNG_READ_zTXt_SUPPORTED
case PNG_READ_zTXt_MODE:
{
png_push_read_zTXt(png_ptr, info_ptr);
@@ -86,7 +87,7 @@
}
#endif
-#if defined(PNG_READ_iTXt_SUPPORTED)
+#ifdef PNG_READ_iTXt_SUPPORTED
case PNG_READ_iTXt_MODE:
{
png_push_read_iTXt(png_ptr, info_ptr);
@@ -149,63 +150,62 @@
void /* PRIVATE */
png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
{
-#ifdef PNG_USE_LOCAL_ARRAYS
- PNG_CONST PNG_IHDR;
- PNG_CONST PNG_IDAT;
- PNG_CONST PNG_IEND;
- PNG_CONST PNG_PLTE;
-#if defined(PNG_READ_bKGD_SUPPORTED)
- PNG_CONST PNG_bKGD;
+ PNG_IHDR;
+ PNG_IDAT;
+ PNG_IEND;
+ PNG_PLTE;
+#ifdef PNG_READ_bKGD_SUPPORTED
+ PNG_bKGD;
#endif
-#if defined(PNG_READ_cHRM_SUPPORTED)
- PNG_CONST PNG_cHRM;
+#ifdef PNG_READ_cHRM_SUPPORTED
+ PNG_cHRM;
#endif
-#if defined(PNG_READ_gAMA_SUPPORTED)
- PNG_CONST PNG_gAMA;
+#ifdef PNG_READ_gAMA_SUPPORTED
+ PNG_gAMA;
#endif
-#if defined(PNG_READ_hIST_SUPPORTED)
- PNG_CONST PNG_hIST;
+#ifdef PNG_READ_hIST_SUPPORTED
+ PNG_hIST;
#endif
-#if defined(PNG_READ_iCCP_SUPPORTED)
- PNG_CONST PNG_iCCP;
+#ifdef PNG_READ_iCCP_SUPPORTED
+ PNG_iCCP;
#endif
-#if defined(PNG_READ_iTXt_SUPPORTED)
- PNG_CONST PNG_iTXt;
+#ifdef PNG_READ_iTXt_SUPPORTED
+ PNG_iTXt;
#endif
-#if defined(PNG_READ_oFFs_SUPPORTED)
- PNG_CONST PNG_oFFs;
+#ifdef PNG_READ_oFFs_SUPPORTED
+ PNG_oFFs;
#endif
-#if defined(PNG_READ_pCAL_SUPPORTED)
- PNG_CONST PNG_pCAL;
+#ifdef PNG_READ_pCAL_SUPPORTED
+ PNG_pCAL;
#endif
-#if defined(PNG_READ_pHYs_SUPPORTED)
- PNG_CONST PNG_pHYs;
+#ifdef PNG_READ_pHYs_SUPPORTED
+ PNG_pHYs;
#endif
-#if defined(PNG_READ_sBIT_SUPPORTED)
- PNG_CONST PNG_sBIT;
+#ifdef PNG_READ_sBIT_SUPPORTED
+ PNG_sBIT;
#endif
-#if defined(PNG_READ_sCAL_SUPPORTED)
- PNG_CONST PNG_sCAL;
+#ifdef PNG_READ_sCAL_SUPPORTED
+ PNG_sCAL;
#endif
-#if defined(PNG_READ_sRGB_SUPPORTED)
- PNG_CONST PNG_sRGB;
+#ifdef PNG_READ_sRGB_SUPPORTED
+ PNG_sRGB;
#endif
-#if defined(PNG_READ_sPLT_SUPPORTED)
- PNG_CONST PNG_sPLT;
+#ifdef PNG_READ_sPLT_SUPPORTED
+ PNG_sPLT;
#endif
-#if defined(PNG_READ_tEXt_SUPPORTED)
- PNG_CONST PNG_tEXt;
+#ifdef PNG_READ_tEXt_SUPPORTED
+ PNG_tEXt;
#endif
-#if defined(PNG_READ_tIME_SUPPORTED)
- PNG_CONST PNG_tIME;
+#ifdef PNG_READ_tIME_SUPPORTED
+ PNG_tIME;
#endif
-#if defined(PNG_READ_tRNS_SUPPORTED)
- PNG_CONST PNG_tRNS;
+#ifdef PNG_READ_tRNS_SUPPORTED
+ PNG_tRNS;
#endif
-#if defined(PNG_READ_zTXt_SUPPORTED)
- PNG_CONST PNG_zTXt;
+#ifdef PNG_READ_zTXt_SUPPORTED
+ PNG_zTXt;
#endif
-#endif /* PNG_USE_LOCAL_ARRAYS */
+
/* First we make sure we have enough data for the 4 byte chunk name
* and the 4 byte chunk length before proceeding with decoding the
* chunk data. To fully decode each of these chunks, we also make
@@ -322,7 +322,7 @@
return;
if (png_ptr->mode & PNG_AFTER_IDAT)
- png_error(png_ptr, "Too many IDAT's found");
+ png_benign_error(png_ptr, "Too many IDATs found");
}
png_ptr->idat_size = png_ptr->push_length;
@@ -334,7 +334,7 @@
return;
}
-#if defined(PNG_READ_gAMA_SUPPORTED)
+#ifdef PNG_READ_gAMA_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -347,7 +347,7 @@
}
#endif
-#if defined(PNG_READ_sBIT_SUPPORTED)
+#ifdef PNG_READ_sBIT_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -360,7 +360,7 @@
}
#endif
-#if defined(PNG_READ_cHRM_SUPPORTED)
+#ifdef PNG_READ_cHRM_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -373,7 +373,7 @@
}
#endif
-#if defined(PNG_READ_sRGB_SUPPORTED)
+#ifdef PNG_READ_sRGB_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -386,7 +386,7 @@
}
#endif
-#if defined(PNG_READ_iCCP_SUPPORTED)
+#ifdef PNG_READ_iCCP_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -399,7 +399,7 @@
}
#endif
-#if defined(PNG_READ_sPLT_SUPPORTED)
+#ifdef PNG_READ_sPLT_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -412,7 +412,7 @@
}
#endif
-#if defined(PNG_READ_tRNS_SUPPORTED)
+#ifdef PNG_READ_tRNS_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -425,7 +425,7 @@
}
#endif
-#if defined(PNG_READ_bKGD_SUPPORTED)
+#ifdef PNG_READ_bKGD_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -438,7 +438,7 @@
}
#endif
-#if defined(PNG_READ_hIST_SUPPORTED)
+#ifdef PNG_READ_hIST_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -451,7 +451,7 @@
}
#endif
-#if defined(PNG_READ_pHYs_SUPPORTED)
+#ifdef PNG_READ_pHYs_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -464,7 +464,7 @@
}
#endif
-#if defined(PNG_READ_oFFs_SUPPORTED)
+#ifdef PNG_READ_oFFs_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -477,7 +477,7 @@
}
#endif
-#if defined(PNG_READ_pCAL_SUPPORTED)
+#ifdef PNG_READ_pCAL_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -490,7 +490,7 @@
}
#endif
-#if defined(PNG_READ_sCAL_SUPPORTED)
+#ifdef PNG_READ_sCAL_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -503,7 +503,7 @@
}
#endif
-#if defined(PNG_READ_tIME_SUPPORTED)
+#ifdef PNG_READ_tIME_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -516,7 +516,7 @@
}
#endif
-#if defined(PNG_READ_tEXt_SUPPORTED)
+#ifdef PNG_READ_tEXt_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -529,7 +529,7 @@
}
#endif
-#if defined(PNG_READ_zTXt_SUPPORTED)
+#ifdef PNG_READ_zTXt_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -542,7 +542,7 @@
}
#endif
-#if defined(PNG_READ_iTXt_SUPPORTED)
+#ifdef PNG_READ_iTXt_SUPPORTED
else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -699,7 +699,7 @@
new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256;
old_buffer = png_ptr->save_buffer;
png_ptr->save_buffer = (png_bytep)png_malloc(png_ptr,
- (png_uint_32)new_max);
+ (png_size_t)new_max);
png_memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size);
png_free(png_ptr, old_buffer);
png_ptr->save_buffer_max = new_max;
@@ -728,9 +728,7 @@
void /* PRIVATE */
png_push_read_IDAT(png_structp png_ptr)
{
-#ifdef PNG_USE_LOCAL_ARRAYS
- PNG_CONST PNG_IDAT;
-#endif
+ PNG_IDAT;
if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER))
{
png_byte chunk_length[4];
@@ -827,7 +825,7 @@
int ret;
if ((png_ptr->flags & PNG_FLAG_ZLIB_FINISHED) && buffer_length)
- png_error(png_ptr, "Extra compression data");
+ png_benign_error(png_ptr, "Extra compression data");
png_ptr->zstream.next_in = buffer;
png_ptr->zstream.avail_in = (uInt)buffer_length;
@@ -839,7 +837,7 @@
if (ret == Z_STREAM_END)
{
if (png_ptr->zstream.avail_in)
- png_error(png_ptr, "Extra compressed data");
+ png_benign_error(png_ptr, "Extra compressed data");
if (!(png_ptr->zstream.avail_out))
{
@@ -859,7 +857,7 @@
if (!(png_ptr->zstream.avail_out))
{
if ((
-#if defined(PNG_READ_INTERLACING_SUPPORTED)
+#ifdef PNG_READ_INTERLACING_SUPPORTED
png_ptr->interlaced && png_ptr->pass > 6) ||
(!png_ptr->interlaced &&
#endif
@@ -896,13 +894,12 @@
png_ptr->row_buf + 1, png_ptr->prev_row + 1,
(int)(png_ptr->row_buf[0]));
- png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf,
- png_ptr->rowbytes + 1);
+ png_memcpy(png_ptr->prev_row, png_ptr->row_buf, png_ptr->rowbytes + 1);
if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA))
png_do_read_transformations(png_ptr);
-#if defined(PNG_READ_INTERLACING_SUPPORTED)
+#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Blow up interlaced rows to full size */
if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE))
{
@@ -928,7 +925,7 @@
{
for (i = 0; i < 4 && png_ptr->pass == 2; i++)
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -937,14 +934,14 @@
{
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
}
if (png_ptr->pass == 6 && png_ptr->height <= 4)
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
@@ -964,7 +961,7 @@
{
for (i = 0; i < 4 && png_ptr->pass == 2; i++)
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -984,7 +981,7 @@
for (i = 0; i < 4 && png_ptr->pass == 2; i++)
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
@@ -992,7 +989,7 @@
{
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -1014,7 +1011,7 @@
{
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -1034,13 +1031,13 @@
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
if (png_ptr->pass == 6) /* Pass 5 might be empty */
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
@@ -1059,7 +1056,7 @@
if (png_ptr->pass == 6) /* Skip top generated row */
{
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
@@ -1073,7 +1070,7 @@
if (png_ptr->pass != 6)
break;
- png_push_have_row(png_ptr, png_bytep_NULL);
+ png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
}
@@ -1089,7 +1086,6 @@
void /* PRIVATE */
png_read_push_finish_row(png_structp png_ptr)
{
-#ifdef PNG_USE_LOCAL_ARRAYS
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */
@@ -1108,17 +1104,16 @@
* it, uncomment it here and in png.h
PNG_CONST int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
*/
-#endif
png_ptr->row_number++;
if (png_ptr->row_number < png_ptr->num_rows)
return;
-#if defined(PNG_READ_INTERLACING_SUPPORTED)
+#ifdef PNG_READ_INTERLACING_SUPPORTED
if (png_ptr->interlaced)
{
png_ptr->row_number = 0;
- png_memset_check(png_ptr, png_ptr->prev_row, 0,
+ png_memset(png_ptr->prev_row, 0,
png_ptr->rowbytes + 1);
do
{
@@ -1155,7 +1150,7 @@
#endif /* PNG_READ_INTERLACING_SUPPORTED */
}
-#if defined(PNG_READ_tEXt_SUPPORTED)
+#ifdef PNG_READ_tEXt_SUPPORTED
void /* PRIVATE */
png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
@@ -1178,7 +1173,7 @@
#endif
png_ptr->current_text = (png_charp)png_malloc(png_ptr,
- (png_uint_32)(length + 1));
+ (png_size_t)(length + 1));
png_ptr->current_text[length] = '\0';
png_ptr->current_text_ptr = png_ptr->current_text;
png_ptr->current_text_size = (png_size_t)length;
@@ -1218,7 +1213,7 @@
png_push_crc_finish(png_ptr);
-#if defined(PNG_MAX_MALLOC_64K)
+#ifdef PNG_MAX_MALLOC_64K
if (png_ptr->skip_length)
return;
#endif
@@ -1232,7 +1227,7 @@
text++;
text_ptr = (png_textp)png_malloc(png_ptr,
- (png_uint_32)png_sizeof(png_text));
+ png_sizeof(png_text));
text_ptr->compression = PNG_TEXT_COMPRESSION_NONE;
text_ptr->key = key;
#ifdef PNG_iTXt_SUPPORTED
@@ -1248,12 +1243,12 @@
png_ptr->current_text = NULL;
if (ret)
- png_warning(png_ptr, "Insufficient memory to store text chunk.");
+ png_warning(png_ptr, "Insufficient memory to store text chunk");
}
}
#endif
-#if defined(PNG_READ_zTXt_SUPPORTED)
+#ifdef PNG_READ_zTXt_SUPPORTED
void /* PRIVATE */
png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
@@ -1278,7 +1273,7 @@
#endif
png_ptr->current_text = (png_charp)png_malloc(png_ptr,
- (png_uint_32)(length + 1));
+ (png_size_t)(length + 1));
png_ptr->current_text[length] = '\0';
png_ptr->current_text_ptr = png_ptr->current_text;
png_ptr->current_text_size = (png_size_t)length;
@@ -1371,7 +1366,7 @@
if (text == NULL)
{
text = (png_charp)png_malloc(png_ptr,
- (png_uint_32)(png_ptr->zbuf_size
+ (png_ptr->zbuf_size
- png_ptr->zstream.avail_out + key_size + 1));
png_memcpy(text + key_size, png_ptr->zbuf,
@@ -1390,7 +1385,7 @@
tmp = text;
text = (png_charp)png_malloc(png_ptr, text_size +
- (png_uint_32)(png_ptr->zbuf_size
+ (png_ptr->zbuf_size
- png_ptr->zstream.avail_out + 1));
png_memcpy(text, tmp, text_size);
@@ -1434,7 +1429,7 @@
text += key_size;
text_ptr = (png_textp)png_malloc(png_ptr,
- (png_uint_32)png_sizeof(png_text));
+ png_sizeof(png_text));
text_ptr->compression = PNG_TEXT_COMPRESSION_zTXt;
text_ptr->key = key;
#ifdef PNG_iTXt_SUPPORTED
@@ -1449,12 +1444,12 @@
png_free(png_ptr, text_ptr);
if (ret)
- png_warning(png_ptr, "Insufficient memory to store text chunk.");
+ png_warning(png_ptr, "Insufficient memory to store text chunk");
}
}
#endif
-#if defined(PNG_READ_iTXt_SUPPORTED)
+#ifdef PNG_READ_iTXt_SUPPORTED
void /* PRIVATE */
png_push_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
@@ -1477,7 +1472,7 @@
#endif
png_ptr->current_text = (png_charp)png_malloc(png_ptr,
- (png_uint_32)(length + 1));
+ (png_size_t)(length + 1));
png_ptr->current_text[length] = '\0';
png_ptr->current_text_ptr = png_ptr->current_text;
png_ptr->current_text_size = (png_size_t)length;
@@ -1521,7 +1516,7 @@
png_push_crc_finish(png_ptr);
-#if defined(PNG_MAX_MALLOC_64K)
+#ifdef PNG_MAX_MALLOC_64K
if (png_ptr->skip_length)
return;
#endif
@@ -1554,7 +1549,7 @@
text++;
text_ptr = (png_textp)png_malloc(png_ptr,
- (png_uint_32)png_sizeof(png_text));
+ png_sizeof(png_text));
text_ptr->compression = comp_flag + 2;
text_ptr->key = key;
@@ -1570,7 +1565,7 @@
png_free(png_ptr, text_ptr);
if (ret)
- png_warning(png_ptr, "Insufficient memory to store iTXt chunk.");
+ png_warning(png_ptr, "Insufficient memory to store iTXt chunk");
}
}
#endif
@@ -1587,10 +1582,10 @@
if (!(png_ptr->chunk_name[0] & 0x20))
{
-#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
+#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
PNG_HANDLE_CHUNK_ALWAYS
-#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
+#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
&& png_ptr->read_user_chunk_fn == NULL
#endif
)
@@ -1600,7 +1595,7 @@
info_ptr = info_ptr; /* To quiet some compiler warnings */
}
-#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
+#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
if (png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS)
{
#ifdef PNG_MAX_MALLOC_64K
@@ -1625,11 +1620,11 @@
else
{
png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr,
- (png_uint_32)length);
+ (png_size_t)length);
png_crc_read(png_ptr, (png_bytep)png_ptr->unknown_chunk.data, length);
}
-#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
+#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
if (png_ptr->read_user_chunk_fn != NULL)
{
/* Callback to user unknown chunk handler */
@@ -1690,10 +1685,9 @@
png_progressive_combine_row (png_structp png_ptr,
png_bytep old_row, png_bytep new_row)
{
-#ifdef PNG_USE_LOCAL_ARRAYS
PNG_CONST int FARDATA png_pass_dsp_mask[7] =
{0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};
-#endif
+
if (png_ptr == NULL)
return;