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libpng: Update to upstream 1.6.26

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This commit is contained in:
Rémi Verschelde
2016-11-02 23:24:25 +01:00
parent cc54189911
commit 7504a85e5a
23 changed files with 1419 additions and 1098 deletions
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72
thirdparty/libpng/pngerror.c vendored
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@ -1,8 +1,8 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* Last changed in libpng 1.6.15 [November 20, 2014]
* Copyright (c) 1998-2002,2004,2006-2014 Glenn Randers-Pehrson
* Last changed in libpng 1.6.26 [October 20, 2016]
* Copyright (c) 1998-2002,2004,2006-2016 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.)
*
@ -26,7 +26,7 @@ static PNG_FUNCTION(void, png_default_error,PNGARG((png_const_structrp png_ptr,
#ifdef PNG_WARNINGS_SUPPORTED
static void /* PRIVATE */
png_default_warning PNGARG((png_const_structrp png_ptr,
png_const_charp warning_message));
png_const_charp warning_message));
#endif /* WARNINGS */
/* This function is called whenever there is a fatal error. This function
@ -37,7 +37,7 @@ png_default_warning PNGARG((png_const_structrp png_ptr,
#ifdef PNG_ERROR_TEXT_SUPPORTED
PNG_FUNCTION(void,PNGAPI
png_error,(png_const_structrp png_ptr, png_const_charp error_message),
PNG_NORETURN)
PNG_NORETURN)
{
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
char msg[16];
@ -65,18 +65,18 @@ png_error,(png_const_structrp png_ptr, png_const_charp error_message),
else
error_message += offset;
}
else
{
if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
{
msg[0] = '0';
msg[1] = '\0';
error_message = msg;
}
}
}
else
{
if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
{
msg[0] = '0';
msg[1] = '\0';
error_message = msg;
}
}
}
}
#endif
if (png_ptr != NULL && png_ptr->error_fn != NULL)
@ -110,7 +110,7 @@ png_err,(png_const_structrp png_ptr),PNG_NORETURN)
*/
size_t
png_safecat(png_charp buffer, size_t bufsize, size_t pos,
png_const_charp string)
png_const_charp string)
{
if (buffer != NULL && pos < bufsize)
{
@ -131,7 +131,7 @@ png_safecat(png_charp buffer, size_t bufsize, size_t pos,
*/
png_charp
png_format_number(png_const_charp start, png_charp end, int format,
png_alloc_size_t number)
png_alloc_size_t number)
{
int count = 0; /* number of digits output */
int mincount = 1; /* minimum number required */
@ -233,7 +233,7 @@ png_warning(png_const_structrp png_ptr, png_const_charp warning_message)
}
if (png_ptr != NULL && png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_constcast(png_structrp,png_ptr),
warning_message + offset);
warning_message + offset);
else
png_default_warning(png_ptr, warning_message + offset);
}
@ -245,7 +245,7 @@ png_warning(png_const_structrp png_ptr, png_const_charp warning_message)
*/
void
png_warning_parameter(png_warning_parameters p, int number,
png_const_charp string)
png_const_charp string)
{
if (number > 0 && number <= PNG_WARNING_PARAMETER_COUNT)
(void)png_safecat(p[number-1], (sizeof p[number-1]), 0, string);
@ -253,7 +253,7 @@ png_warning_parameter(png_warning_parameters p, int number,
void
png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
png_alloc_size_t value)
png_alloc_size_t value)
{
char buffer[PNG_NUMBER_BUFFER_SIZE];
png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
@ -261,7 +261,7 @@ png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
void
png_warning_parameter_signed(png_warning_parameters p, int number, int format,
png_int_32 value)
png_int_32 value)
{
png_alloc_size_t u;
png_charp str;
@ -282,7 +282,7 @@ png_warning_parameter_signed(png_warning_parameters p, int number, int format,
void
png_formatted_warning(png_const_structrp png_ptr, png_warning_parameters p,
png_const_charp message)
png_const_charp message)
{
/* The internal buffer is just 192 bytes - enough for all our messages,
* overflow doesn't happen because this code checks! If someone figures
@ -391,10 +391,10 @@ png_benign_error(png_const_structrp png_ptr, png_const_charp error_message)
void /* PRIVATE */
png_app_warning(png_const_structrp png_ptr, png_const_charp error_message)
{
if ((png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) != 0)
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
if ((png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) != 0)
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
# ifndef PNG_ERROR_TEXT_SUPPORTED
PNG_UNUSED(error_message)
@ -404,10 +404,10 @@ png_app_warning(png_const_structrp png_ptr, png_const_charp error_message)
void /* PRIVATE */
png_app_error(png_const_structrp png_ptr, png_const_charp error_message)
{
if ((png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) != 0)
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
if ((png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) != 0)
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
# ifndef PNG_ERROR_TEXT_SUPPORTED
PNG_UNUSED(error_message)
@ -478,7 +478,7 @@ png_format_buffer(png_const_structrp png_ptr, png_charp buffer, png_const_charp
#if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)
PNG_FUNCTION(void,PNGAPI
png_chunk_error,(png_const_structrp png_ptr, png_const_charp error_message),
PNG_NORETURN)
PNG_NORETURN)
{
char msg[18+PNG_MAX_ERROR_TEXT];
if (png_ptr == NULL)
@ -573,7 +573,7 @@ png_fixed_error,(png_const_structrp png_ptr, png_const_charp name),PNG_NORETURN)
{
# define fixed_message "fixed point overflow in "
# define fixed_message_ln ((sizeof fixed_message)-1)
int iin;
unsigned int iin;
char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT];
memcpy(msg, fixed_message, fixed_message_ln);
iin = 0;
@ -620,7 +620,7 @@ png_set_longjmp_fn(png_structrp png_ptr, png_longjmp_ptr longjmp_fn,
else
{
png_ptr->jmp_buf_ptr = png_voidcast(jmp_buf *,
png_malloc_warn(png_ptr, jmp_buf_size));
png_malloc_warn(png_ptr, jmp_buf_size));
if (png_ptr->jmp_buf_ptr == NULL)
return NULL; /* new NULL return on OOM */
@ -709,7 +709,7 @@ png_free_jmpbuf(png_structrp png_ptr)
*/
static PNG_FUNCTION(void /* PRIVATE */,
png_default_error,(png_const_structrp png_ptr, png_const_charp error_message),
PNG_NORETURN)
PNG_NORETURN)
{
#ifdef PNG_CONSOLE_IO_SUPPORTED
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
@ -883,7 +883,7 @@ png_set_strip_error_numbers(png_structrp png_ptr, png_uint_32 strip_mode)
*/
PNG_FUNCTION(void /* PRIVATE */, (PNGCBAPI
png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message),
PNG_NORETURN)
PNG_NORETURN)
{
const png_const_structrp png_ptr = png_nonconst_ptr;
png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
@ -906,7 +906,7 @@ png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message),
/* Missing longjmp buffer, the following is to help debugging: */
{
size_t pos = png_safecat(image->message, (sizeof image->message), 0,
"bad longjmp: ");
"bad longjmp: ");
png_safecat(image->message, (sizeof image->message), pos,
error_message);
}