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[libpng16] Fixed more indentation

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This commit is contained in:
Glenn Randers-Pehrson 2016-07-15 11:20:46 -05:00
parent 34c783e2fe
commit dd70604cec
19 changed files with 604 additions and 599 deletions
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5
ANNOUNCE
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@ -1,4 +1,4 @@
Libpng 1.6.24beta06 - July 14, 2016
Libpng 1.6.24beta06 - July 15, 2016
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@ -86,7 +86,8 @@ Version 1.6.24beta05 [July 13, 2016]
Fixed some indentation to comply with our coding style.
Added contrib/tools/reindent.
Version 1.6.24beta06 [July 14, 2016]
Version 1.6.24beta06 [July 15, 2016]
Fixed more indentation to comply with our coding style.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

3
CHANGES
View File

@ -5657,7 +5657,8 @@ Version 1.6.24beta05 [July 13, 2016]
Fixed some indentation to comply with our coding style.
Added contrib/tools/reindent.
Version 1.6.24beta06 [July 14, 2016]
Version 1.6.24beta06 [July 15, 2016]
Fixed more indentation to comply with our coding style.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

34
example.c
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@ -97,7 +97,7 @@ int main(int argc, const char **argv)
*/
if (buffer != NULL &&
png_image_finish_read(&image, NULL/*background*/, buffer,
0/*row_stride*/, NULL/*colormap*/) != 0)
0/*row_stride*/, NULL/*colormap*/) != 0)
{
/* Now write the image out to the second argument. In the write
* call 'convert_to_8bit' allows 16-bit data to be squashed down to
@ -105,7 +105,7 @@ int main(int argc, const char **argv)
* to the 8-bit format.
*/
if (png_image_write_to_file(&image, argv[2], 0/*convert_to_8bit*/,
buffer, 0/*row_stride*/, NULL/*colormap*/) != 0)
buffer, 0/*row_stride*/, NULL/*colormap*/) != 0)
{
/* The image has been written successfully. */
exit(0);
@ -295,7 +295,7 @@ void read_png(FILE *fp, int sig_read) /* File is already open */
* was compiled with a compatible version of the library. REQUIRED
*/
png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
png_voidp user_error_ptr, user_error_fn, user_warning_fn);
png_voidp user_error_ptr, user_error_fn, user_warning_fn);
if (png_ptr == NULL)
{
@ -419,10 +419,10 @@ void read_png(FILE *fp, int sig_read) /* File is already open */
if (png_get_bKGD(png_ptr, info_ptr, &image_background) != 0)
png_set_background(png_ptr, image_background,
PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
else
png_set_background(png_ptr, &my_background,
PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
/* Some suggestions as to how to get a screen gamma value
*
@ -481,7 +481,7 @@ void read_png(FILE *fp, int sig_read) /* File is already open */
png_color std_color_cube[MAX_SCREEN_COLORS];
png_set_quantize(png_ptr, std_color_cube, MAX_SCREEN_COLORS,
MAX_SCREEN_COLORS, NULL, 0);
MAX_SCREEN_COLORS, NULL, 0);
}
/* This reduces the image to the palette supplied in the file */
else if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette) != 0)
@ -491,7 +491,7 @@ void read_png(FILE *fp, int sig_read) /* File is already open */
png_get_hIST(png_ptr, info_ptr, &histogram);
png_set_quantize(png_ptr, palette, num_palette,
max_screen_colors, histogram, 0);
max_screen_colors, histogram, 0);
}
}
#endif /* READ_QUANTIZE */
@ -552,7 +552,7 @@ void read_png(FILE *fp, int sig_read) /* File is already open */
for (row = 0; row < height; row++)
row_pointers[row] = png_malloc(png_ptr, png_get_rowbytes(png_ptr,
info_ptr));
info_ptr));
/* Now it's time to read the image. One of these methods is REQUIRED */
#ifdef entire /* Read the entire image in one go */
@ -574,10 +574,10 @@ void read_png(FILE *fp, int sig_read) /* File is already open */
{
#ifdef sparkle /* Read the image using the "sparkle" effect. */
png_read_rows(png_ptr, &row_pointers[y], NULL,
number_of_rows);
number_of_rows);
#else no_sparkle /* Read the image using the "rectangle" effect */
png_read_rows(png_ptr, NULL, &row_pointers[y],
number_of_rows);
number_of_rows);
#endif no_sparkle /* Use only one of these two methods */
}
@ -614,7 +614,7 @@ initialize_png_reader(png_structp *png_ptr, png_infop *info_ptr)
* linked libraries.
*/
*png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
png_voidp user_error_ptr, user_error_fn, user_warning_fn);
png_voidp user_error_ptr, user_error_fn, user_warning_fn);
if (*png_ptr == NULL)
{
@ -649,14 +649,14 @@ initialize_png_reader(png_structp *png_ptr, png_infop *info_ptr)
* the function png_get_progressive_ptr(png_ptr).
*/
png_set_progressive_read_fn(*png_ptr, (void *)stream_data,
info_callback, row_callback, end_callback);
info_callback, row_callback, end_callback);
return (OK);
}
int
process_data(png_structp *png_ptr, png_infop *info_ptr,
png_bytep buffer, png_uint_32 length)
png_bytep buffer, png_uint_32 length)
{
if (setjmp(png_jmpbuf((*png_ptr))))
{
@ -691,7 +691,7 @@ info_callback(png_structp png_ptr, png_infop info)
}
row_callback(png_structp png_ptr, png_bytep new_row,
png_uint_32 row_num, int pass)
png_uint_32 row_num, int pass)
{
/*
* This function is called for every row in the image. If the
@ -780,7 +780,7 @@ void write_png(char *file_name /* , ... other image information ... */)
* in case we are using dynamically linked libraries. REQUIRED.
*/
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
png_voidp user_error_ptr, user_error_fn, user_warning_fn);
png_voidp user_error_ptr, user_error_fn, user_warning_fn);
if (png_ptr == NULL)
{
@ -819,7 +819,7 @@ void write_png(char *file_name /* , ... other image information ... */)
* png_init_io() here you would call
*/
png_set_write_fn(png_ptr, (void *)user_io_ptr, user_write_fn,
user_IO_flush_function);
user_IO_flush_function);
/* where user_io_ptr is a structure you want available to the callbacks */
#endif no_streams /* Only use one initialization method */
@ -842,7 +842,7 @@ void write_png(char *file_name /* , ... other image information ... */)
* currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE. REQUIRED
*/
png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, PNG_COLOR_TYPE_???,
PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
/* Set the palette if there is one. REQUIRED for indexed-color images */
palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH

202
png.c
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@ -85,7 +85,7 @@ png_zalloc,(voidpf png_ptr, uInt items, uInt size),PNG_ALLOCATED)
if (items >= (~(png_alloc_size_t)0)/size)
{
png_warning (png_voidcast(png_structrp, png_ptr),
"Potential overflow in png_zalloc()");
"Potential overflow in png_zalloc()");
return NULL;
}
@ -297,7 +297,7 @@ png_create_png_struct,(png_const_charp user_png_ver, png_voidp error_ptr,
if (png_user_version_check(&create_struct, user_png_ver) != 0)
{
png_structrp png_ptr = png_voidcast(png_structrp,
png_malloc_warn(&create_struct, (sizeof *png_ptr)));
png_malloc_warn(&create_struct, (sizeof *png_ptr)));
if (png_ptr != NULL)
{
@ -346,7 +346,7 @@ png_create_info_struct,(png_const_structrp png_ptr),PNG_ALLOCATED)
* has always been done in 'example.c'.
*/
info_ptr = png_voidcast(png_inforp, png_malloc_base(png_ptr,
(sizeof *info_ptr)));
(sizeof *info_ptr)));
if (info_ptr != NULL)
memset(info_ptr, 0, (sizeof *info_ptr));
@ -402,7 +402,7 @@ png_destroy_info_struct(png_const_structrp png_ptr, png_infopp info_ptr_ptr)
*/
PNG_FUNCTION(void,PNGAPI
png_info_init_3,(png_infopp ptr_ptr, png_size_t png_info_struct_size),
PNG_DEPRECATED)
PNG_DEPRECATED)
{
png_inforp info_ptr = *ptr_ptr;
@ -417,7 +417,7 @@ png_info_init_3,(png_infopp ptr_ptr, png_size_t png_info_struct_size),
/* The following line is why this API should not be used: */
free(info_ptr);
info_ptr = png_voidcast(png_inforp, png_malloc_base(NULL,
(sizeof *info_ptr)));
(sizeof *info_ptr)));
if (info_ptr == NULL)
return;
*ptr_ptr = info_ptr;
@ -430,7 +430,7 @@ png_info_init_3,(png_infopp ptr_ptr, png_size_t png_info_struct_size),
/* The following API is not called internally */
void PNGAPI
png_data_freer(png_const_structrp png_ptr, png_inforp info_ptr,
int freer, png_uint_32 mask)
int freer, png_uint_32 mask)
{
png_debug(1, "in png_data_freer");
@ -449,7 +449,7 @@ png_data_freer(png_const_structrp png_ptr, png_inforp info_ptr,
void PNGAPI
png_free_data(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 mask,
int num)
int num)
{
png_debug(1, "in png_free_data");
@ -775,14 +775,14 @@ png_get_copyright(png_const_structrp png_ptr)
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
"libpng version 1.6.24beta06 - July 14, 2016" PNG_STRING_NEWLINE \
"libpng version 1.6.24beta06 - July 15, 2016" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE;
# else
return "libpng version 1.6.24beta06 - July 14, 2016\
return "libpng version 1.6.24beta06 - July 15, 2016\
Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@ -1033,7 +1033,7 @@ png_zstream_error(png_structrp png_ptr, int ret)
#ifdef PNG_GAMMA_SUPPORTED /* always set if COLORSPACE */
static int
png_colorspace_check_gamma(png_const_structrp png_ptr,
png_colorspacerp colorspace, png_fixed_point gAMA, int from)
png_colorspacerp colorspace, png_fixed_point gAMA, int from)
/* This is called to check a new gamma value against an existing one. The
* routine returns false if the new gamma value should not be written.
*
@ -1047,7 +1047,7 @@ png_colorspace_check_gamma(png_const_structrp png_ptr,
png_fixed_point gtest;
if ((colorspace->flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
(png_muldiv(&gtest, colorspace->gamma, PNG_FP_1, gAMA) == 0 ||
(png_muldiv(&gtest, colorspace->gamma, PNG_FP_1, gAMA) == 0 ||
png_gamma_significant(gtest) != 0))
{
/* Either this is an sRGB image, in which case the calculated gamma
@ -1059,7 +1059,7 @@ png_colorspace_check_gamma(png_const_structrp png_ptr,
if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0 || from == 2)
{
png_chunk_report(png_ptr, "gamma value does not match sRGB",
PNG_CHUNK_ERROR);
PNG_CHUNK_ERROR);
/* Do not overwrite an sRGB value */
return from == 2;
}
@ -1067,7 +1067,7 @@ png_colorspace_check_gamma(png_const_structrp png_ptr,
else /* sRGB tag not involved */
{
png_chunk_report(png_ptr, "gamma value does not match libpng estimate",
PNG_CHUNK_WARNING);
PNG_CHUNK_WARNING);
return from == 1;
}
}
@ -1077,7 +1077,7 @@ png_colorspace_check_gamma(png_const_structrp png_ptr,
void /* PRIVATE */
png_colorspace_set_gamma(png_const_structrp png_ptr,
png_colorspacerp colorspace, png_fixed_point gAMA)
png_colorspacerp colorspace, png_fixed_point gAMA)
{
/* Changed in libpng-1.5.4 to limit the values to ensure overflow can't
* occur. Since the fixed point representation is asymetrical it is
@ -1635,8 +1635,8 @@ static const png_xy sRGB_xy = /* From ITU-R BT.709-3 */
static int
png_colorspace_set_xy_and_XYZ(png_const_structrp png_ptr,
png_colorspacerp colorspace, const png_xy *xy, const png_XYZ *XYZ,
int preferred)
png_colorspacerp colorspace, const png_xy *xy, const png_XYZ *XYZ,
int preferred)
{
if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
return 0;
@ -1683,7 +1683,7 @@ png_colorspace_set_xy_and_XYZ(png_const_structrp png_ptr,
int /* PRIVATE */
png_colorspace_set_chromaticities(png_const_structrp png_ptr,
png_colorspacerp colorspace, const png_xy *xy, int preferred)
png_colorspacerp colorspace, const png_xy *xy, int preferred)
{
/* We must check the end points to ensure they are reasonable - in the past
* color management systems have crashed as a result of getting bogus
@ -1697,7 +1697,7 @@ png_colorspace_set_chromaticities(png_const_structrp png_ptr,
{
case 0: /* success */
return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, xy, &XYZ,
preferred);
preferred);
case 1:
/* We can't invert the chromaticities so we can't produce value XYZ
@ -1720,7 +1720,7 @@ png_colorspace_set_chromaticities(png_const_structrp png_ptr,
int /* PRIVATE */
png_colorspace_set_endpoints(png_const_structrp png_ptr,
png_colorspacerp colorspace, const png_XYZ *XYZ_in, int preferred)
png_colorspacerp colorspace, const png_XYZ *XYZ_in, int preferred)
{
png_XYZ XYZ = *XYZ_in;
png_xy xy;
@ -1729,7 +1729,7 @@ png_colorspace_set_endpoints(png_const_structrp png_ptr,
{
case 0:
return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, &xy, &XYZ,
preferred);
preferred);
case 1:
/* End points are invalid. */
@ -1786,7 +1786,7 @@ is_ICC_signature(png_alloc_size_t it)
static int
png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace,
png_const_charp name, png_alloc_size_t value, png_const_charp reason)
png_const_charp name, png_alloc_size_t value, png_const_charp reason)
{
size_t pos;
char message[196]; /* see below for calculation */
@ -1811,8 +1811,8 @@ png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace,
char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114*/
pos = png_safecat(message, (sizeof message), pos,
png_format_number(number, number+(sizeof number),
PNG_NUMBER_FORMAT_x, value));
png_format_number(number, number+(sizeof number),
PNG_NUMBER_FORMAT_x, value));
pos = png_safecat(message, (sizeof message), pos, "h: "); /*+2 = 116*/
}
# endif
@ -1826,7 +1826,7 @@ png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace,
* application errors the PNG won't be written.)
*/
png_chunk_report(png_ptr, message,
(colorspace != NULL) ? PNG_CHUNK_ERROR : PNG_CHUNK_WRITE_ERROR);
(colorspace != NULL) ? PNG_CHUNK_ERROR : PNG_CHUNK_WRITE_ERROR);
return 0;
}
@ -1835,7 +1835,7 @@ png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace,
#ifdef PNG_sRGB_SUPPORTED
int /* PRIVATE */
png_colorspace_set_sRGB(png_const_structrp png_ptr, png_colorspacerp colorspace,
int intent)
int intent)
{
/* sRGB sets known gamma, end points and (from the chunk) intent. */
/* IMPORTANT: these are not necessarily the values found in an ICC profile
@ -1872,10 +1872,10 @@ png_colorspace_set_sRGB(png_const_structrp png_ptr, png_colorspacerp colorspace,
*/
if (intent < 0 || intent >= PNG_sRGB_INTENT_LAST)
return png_icc_profile_error(png_ptr, colorspace, "sRGB",
(unsigned)intent, "invalid sRGB rendering intent");
(unsigned)intent, "invalid sRGB rendering intent");
if ((colorspace->flags & PNG_COLORSPACE_HAVE_INTENT) != 0 &&
colorspace->rendering_intent != intent)
colorspace->rendering_intent != intent)
return png_icc_profile_error(png_ptr, colorspace, "sRGB",
(unsigned)intent, "inconsistent rendering intents");
@ -1889,8 +1889,8 @@ png_colorspace_set_sRGB(png_const_structrp png_ptr, png_colorspacerp colorspace,
* warn but overwrite the value with the correct one.
*/
if ((colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0 &&
!png_colorspace_endpoints_match(&sRGB_xy, &colorspace->end_points_xy,
100))
!png_colorspace_endpoints_match(&sRGB_xy, &colorspace->end_points_xy,
100))
png_chunk_report(png_ptr, "cHRM chunk does not match sRGB",
PNG_CHUNK_ERROR);
@ -1898,7 +1898,7 @@ png_colorspace_set_sRGB(png_const_structrp png_ptr, png_colorspacerp colorspace,
* returns true when the 'from' argument corresponds to sRGB (2).
*/
(void)png_colorspace_check_gamma(png_ptr, colorspace, PNG_GAMMA_sRGB_INVERSE,
2/*from sRGB*/);
2/*from sRGB*/);
/* intent: bugs in GCC force 'int' to be used as the parameter type. */
colorspace->rendering_intent = (png_uint_16)intent;
@ -1933,19 +1933,19 @@ static const png_byte D50_nCIEXYZ[12] =
int /* PRIVATE */
png_icc_check_length(png_const_structrp png_ptr, png_colorspacerp colorspace,
png_const_charp name, png_uint_32 profile_length)
png_const_charp name, png_uint_32 profile_length)
{
if (profile_length < 132)
return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
"too short");
"too short");
return 1;
}
int /* PRIVATE */
png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
png_const_charp name, png_uint_32 profile_length,
png_const_bytep profile/* first 132 bytes only */, int color_type)
png_const_charp name, png_uint_32 profile_length,
png_const_bytep profile/* first 132 bytes only */, int color_type)
{
png_uint_32 temp;
@ -1957,18 +1957,18 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
temp = png_get_uint_32(profile);
if (temp != profile_length)
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"length does not match profile");
"length does not match profile");
temp = (png_uint_32) (*(profile+8));
if (temp > 3 && (profile_length & 3))
return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
"invalid length");
"invalid length");
temp = png_get_uint_32(profile+128); /* tag count: 12 bytes/tag */
if (temp > 357913930 || /* (2^32-4-132)/12: maximum possible tag count */
profile_length < 132+12*temp) /* truncated tag table */
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"tag count too large");
"tag count too large");
/* The 'intent' must be valid or we can't store it, ICC limits the intent to
* 16 bits.
@ -1976,14 +1976,14 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
temp = png_get_uint_32(profile+64);
if (temp >= 0xffff) /* The ICC limit */
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"invalid rendering intent");
"invalid rendering intent");
/* This is just a warning because the profile may be valid in future
* versions.
*/
if (temp >= PNG_sRGB_INTENT_LAST)
(void)png_icc_profile_error(png_ptr, NULL, name, temp,
"intent outside defined range");
"intent outside defined range");
/* At this point the tag table can't be checked because it hasn't necessarily
* been loaded; however, various header fields can be checked. These checks
@ -2000,7 +2000,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
temp = png_get_uint_32(profile+36); /* signature 'ascp' */
if (temp != 0x61637370)
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"invalid signature");
"invalid signature");
/* Currently the PCS illuminant/adopted white point (the computational
* white point) are required to be D50,
@ -2011,7 +2011,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
*/
if (memcmp(profile+68, D50_nCIEXYZ, 12) != 0)
(void)png_icc_profile_error(png_ptr, NULL, name, 0/*no tag value*/,
"PCS illuminant is not D50");
"PCS illuminant is not D50");
/* The PNG spec requires this:
* "If the iCCP chunk is present, the image samples conform to the colour
@ -2039,18 +2039,18 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
case 0x52474220: /* 'RGB ' */
if ((color_type & PNG_COLOR_MASK_COLOR) == 0)
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"RGB color space not permitted on grayscale PNG");
"RGB color space not permitted on grayscale PNG");
break;
case 0x47524159: /* 'GRAY' */
if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"Gray color space not permitted on RGB PNG");
"Gray color space not permitted on RGB PNG");
break;
default:
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"invalid ICC profile color space");
"invalid ICC profile color space");
}
/* It is up to the application to check that the profile class matches the
@ -2075,7 +2075,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
case 0x61627374: /* 'abst' */
/* May not be embedded in an image */
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"invalid embedded Abstract ICC profile");
"invalid embedded Abstract ICC profile");
case 0x6c696e6b: /* 'link' */
/* DeviceLink profiles cannot be interpreted in a non-device specific
@ -2085,7 +2085,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
* PNG.
*/
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"unexpected DeviceLink ICC profile class");
"unexpected DeviceLink ICC profile class");
case 0x6e6d636c: /* 'nmcl' */
/* A NamedColor profile is also device specific, however it doesn't
@ -2093,7 +2093,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
* certainly it will fail the tests below.
*/
(void)png_icc_profile_error(png_ptr, NULL, name, temp,
"unexpected NamedColor ICC profile class");
"unexpected NamedColor ICC profile class");
break;
default:
@ -2103,7 +2103,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
* understood profiles.
*/
(void)png_icc_profile_error(png_ptr, NULL, name, temp,
"unrecognized ICC profile class");
"unrecognized ICC profile class");
break;
}
@ -2119,7 +2119,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
default:
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"unexpected ICC PCS encoding");
"unexpected ICC PCS encoding");
}
return 1;
@ -2127,8 +2127,8 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
int /* PRIVATE */
png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace,
png_const_charp name, png_uint_32 profile_length,
png_const_bytep profile /* header plus whole tag table */)
png_const_charp name, png_uint_32 profile_length,
png_const_bytep profile /* header plus whole tag table */)
{
png_uint_32 tag_count = png_get_uint_32(profile+128);
png_uint_32 itag;
@ -2156,7 +2156,7 @@ png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace,
* alignment.
*/
(void)png_icc_profile_error(png_ptr, NULL, name, tag_id,
"ICC profile tag start not a multiple of 4");
"ICC profile tag start not a multiple of 4");
}
/* This is a hard error; potentially it can cause read outside the
@ -2164,7 +2164,7 @@ png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace,
*/
if (tag_start > profile_length || tag_length > profile_length - tag_start)
return png_icc_profile_error(png_ptr, colorspace, name, tag_id,
"ICC profile tag outside profile");
"ICC profile tag outside profile");
}
return 1; /* success, maybe with warnings */
@ -2192,22 +2192,22 @@ static const struct
*/
/* adler32, crc32, MD5[4], intent, date, length, file-name */
PNG_ICC_CHECKSUM(0x0a3fd9f6, 0x3b8772b9,
PNG_MD5(0x29f83dde, 0xaff255ae, 0x7842fae4, 0xca83390d), 0, 0,
"2009/03/27 21:36:31", 3048, "sRGB_IEC61966-2-1_black_scaled.icc")
PNG_MD5(0x29f83dde, 0xaff255ae, 0x7842fae4, 0xca83390d), 0, 0,
"2009/03/27 21:36:31", 3048, "sRGB_IEC61966-2-1_black_scaled.icc")
/* ICC sRGB v2 perceptual no black-compensation: */
PNG_ICC_CHECKSUM(0x4909e5e1, 0x427ebb21,
PNG_MD5(0xc95bd637, 0xe95d8a3b, 0x0df38f99, 0xc1320389), 1, 0,
"2009/03/27 21:37:45", 3052, "sRGB_IEC61966-2-1_no_black_scaling.icc")
PNG_MD5(0xc95bd637, 0xe95d8a3b, 0x0df38f99, 0xc1320389), 1, 0,
"2009/03/27 21:37:45", 3052, "sRGB_IEC61966-2-1_no_black_scaling.icc")
PNG_ICC_CHECKSUM(0xfd2144a1, 0x306fd8ae,
PNG_MD5(0xfc663378, 0x37e2886b, 0xfd72e983, 0x8228f1b8), 0, 0,
"2009/08/10 17:28:01", 60988, "sRGB_v4_ICC_preference_displayclass.icc")
PNG_MD5(0xfc663378, 0x37e2886b, 0xfd72e983, 0x8228f1b8), 0, 0,
"2009/08/10 17:28:01", 60988, "sRGB_v4_ICC_preference_displayclass.icc")
/* ICC sRGB v4 perceptual */
PNG_ICC_CHECKSUM(0x209c35d2, 0xbbef7812,
PNG_MD5(0x34562abf, 0x994ccd06, 0x6d2c5721, 0xd0d68c5d), 0, 0,
"2007/07/25 00:05:37", 60960, "sRGB_v4_ICC_preference.icc")
PNG_MD5(0x34562abf, 0x994ccd06, 0x6d2c5721, 0xd0d68c5d), 0, 0,
"2007/07/25 00:05:37", 60960, "sRGB_v4_ICC_preference.icc")
/* The following profiles have no known MD5 checksum. If there is a match
* on the (empty) MD5 the other fields are used to attempt a match and
@ -2215,8 +2215,8 @@ static const struct
* which suggests that they were also made by Hewlett Packard.
*/
PNG_ICC_CHECKSUM(0xa054d762, 0x5d5129ce,
PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 0,
"2004/07/21 18:57:42", 3024, "sRGB_IEC61966-2-1_noBPC.icc")
PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 0,
"2004/07/21 18:57:42", 3024, "sRGB_IEC61966-2-1_noBPC.icc")
/* This is a 'mntr' (display) profile with a mediaWhitePointTag that does not
* match the D50 PCS illuminant in the header (it is in fact the D65 values,
@ -2226,17 +2226,17 @@ static const struct
* chromaticAdaptationTag.
*/
PNG_ICC_CHECKSUM(0xf784f3fb, 0x182ea552,
PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 0, 1/*broken*/,
"1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 perceptual")
PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 0, 1/*broken*/,
"1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 perceptual")
PNG_ICC_CHECKSUM(0x0398f3fc, 0xf29e526d,
PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 1/*broken*/,
"1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 media-relative")
PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 1/*broken*/,
"1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 media-relative")
};
static int
png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
png_const_bytep profile, uLong adler)
png_const_bytep profile, uLong adler)
{
/* The quick check is to verify just the MD5 signature and trust the
* rest of the data. Because the profile has already been verified for
@ -2320,7 +2320,7 @@ png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
* which is made irrelevant by this error.
*/
png_chunk_report(png_ptr, "known incorrect sRGB profile",
PNG_CHUNK_ERROR);
PNG_CHUNK_ERROR);
}
/* Warn that this being done; this isn't even an error since
@ -2330,8 +2330,8 @@ png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
else if (png_sRGB_checks[i].have_md5 == 0)
{
png_chunk_report(png_ptr,
"out-of-date sRGB profile with no signature",
PNG_CHUNK_WARNING);
"out-of-date sRGB profile with no signature",
PNG_CHUNK_WARNING);
}
return 1+png_sRGB_checks[i].is_broken;
@ -2357,7 +2357,7 @@ png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr,
void /* PRIVATE */
png_icc_set_sRGB(png_const_structrp png_ptr,
png_colorspacerp colorspace, png_const_bytep profile, uLong adler)
png_colorspacerp colorspace, png_const_bytep profile, uLong adler)
{
/* Is this profile one of the known ICC sRGB profiles? If it is, just set
* the sRGB information.
@ -2371,17 +2371,17 @@ png_icc_set_sRGB(png_const_structrp png_ptr,
int /* PRIVATE */
png_colorspace_set_ICC(png_const_structrp png_ptr, png_colorspacerp colorspace,
png_const_charp name, png_uint_32 profile_length, png_const_bytep profile,
int color_type)
png_const_charp name, png_uint_32 profile_length, png_const_bytep profile,
int color_type)
{
if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
return 0;
if (png_icc_check_length(png_ptr, colorspace, name, profile_length) != 0 &&
png_icc_check_header(png_ptr, colorspace, name, profile_length, profile,
color_type) != 0 &&
color_type) != 0 &&
png_icc_check_tag_table(png_ptr, colorspace, name, profile_length,
profile) != 0)
profile) != 0)
{
# if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0
/* If no sRGB support, don't try storing sRGB information */
@ -2442,7 +2442,7 @@ png_colorspace_set_rgb_coefficients(png_structrp png_ptr)
/* Check for an internal error. */
if (r+g+b != 32768)
png_error(png_ptr,
"internal error handling cHRM coefficients");
"internal error handling cHRM coefficients");
else
{
@ -2476,9 +2476,9 @@ png_gt(size_t a, size_t b)
void /* PRIVATE */
png_check_IHDR(png_const_structrp png_ptr,
png_uint_32 width, png_uint_32 height, int bit_depth,
int color_type, int interlace_type, int compression_type,
int filter_type)
png_uint_32 width, png_uint_32 height, int bit_depth,
int color_type, int interlace_type, int compression_type,
int filter_type)
{
int error = 0;
@ -2641,7 +2641,7 @@ png_check_IHDR(png_const_structrp png_ptr,
int /* PRIVATE */
png_check_fp_number(png_const_charp string, png_size_t size, int *statep,
png_size_tp whereami)
png_size_tp whereami)
{
int state = *statep;
png_size_t i = *whereami;
@ -3804,25 +3804,25 @@ png_gamma_16bit_correct(unsigned int value, png_fixed_point gamma_val)
{
if (value > 0 && value < 65535)
{
# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
/* The same (unsigned int)->(double) constraints apply here as above,
* however in this case the (unsigned int) to (int) conversion can
* overflow on an ANSI-C90 compliant system so the cast needs to ensure
* that this is not possible.
*/
double r = floor(65535*pow((png_int_32)value/65535.,
gamma_val*.00001)+.5);
return (png_uint_16)r;
# else
png_int_32 lg2 = png_log16bit(value);
png_fixed_point res;
# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
/* The same (unsigned int)->(double) constraints apply here as above,
* however in this case the (unsigned int) to (int) conversion can
* overflow on an ANSI-C90 compliant system so the cast needs to ensure
* that this is not possible.
*/
double r = floor(65535*pow((png_int_32)value/65535.,
gamma_val*.00001)+.5);
return (png_uint_16)r;
# else
png_int_32 lg2 = png_log16bit(value);
png_fixed_point res;
if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1) != 0)
return png_exp16bit(res);
if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1) != 0)
return png_exp16bit(res);
/* Overflow. */
value = 0;
# endif
/* Overflow. */
value = 0;
# endif
}
return (png_uint_16)value;
@ -3861,7 +3861,7 @@ png_gamma_correct(png_structrp png_ptr, unsigned int value,
*/
static void
png_build_16bit_table(png_structrp png_ptr, png_uint_16pp *ptable,
PNG_CONST unsigned int shift, PNG_CONST png_fixed_point gamma_val)
PNG_CONST unsigned int shift, PNG_CONST png_fixed_point gamma_val)
{
/* Various values derived from 'shift': */
PNG_CONST unsigned int num = 1U << (8U - shift);
@ -3938,7 +3938,7 @@ png_build_16bit_table(png_structrp png_ptr, png_uint_16pp *ptable,
*/
static void
png_build_16to8_table(png_structrp png_ptr, png_uint_16pp *ptable,
PNG_CONST unsigned int shift, PNG_CONST png_fixed_point gamma_val)
PNG_CONST unsigned int shift, PNG_CONST png_fixed_point gamma_val)
{
PNG_CONST unsigned int num = 1U << (8U - shift);
PNG_CONST unsigned int max = (1U << (16U - shift))-1U;
@ -4006,7 +4006,7 @@ png_build_16to8_table(png_structrp png_ptr, png_uint_16pp *ptable,
*/
static void
png_build_8bit_table(png_structrp png_ptr, png_bytepp ptable,
PNG_CONST png_fixed_point gamma_val)
PNG_CONST png_fixed_point gamma_val)
{
unsigned int i;
png_bytep table = *ptable = (png_bytep)png_malloc(png_ptr, 256);

28
pngerror.c
View File

@ -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];
@ -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
@ -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)
@ -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);
}

56
pngget.c
View File

@ -1,8 +1,8 @@
/* pngget.c - retrieval of values from info struct
*
* Last changed in libpng 1.6.17 [March 26, 2015]
* Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* Last changed in libpng 1.6.24 [(PENDING RELEASE)]
* 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.)
*
@ -486,7 +486,7 @@ png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr)
#ifdef PNG_bKGD_SUPPORTED
png_uint_32 PNGAPI
png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
png_color_16p *background)
png_color_16p *background)
{
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_bKGD) != 0 &&
@ -526,28 +526,28 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (white_x != NULL)
*white_x = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.whitex, "cHRM white X");
info_ptr->colorspace.end_points_xy.whitex, "cHRM white X");
if (white_y != NULL)
*white_y = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.whitey, "cHRM white Y");
info_ptr->colorspace.end_points_xy.whitey, "cHRM white Y");
if (red_x != NULL)
*red_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redx,
"cHRM red X");
"cHRM red X");
if (red_y != NULL)
*red_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redy,
"cHRM red Y");
"cHRM red Y");
if (green_x != NULL)
*green_x = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.greenx, "cHRM green X");
info_ptr->colorspace.end_points_xy.greenx, "cHRM green X");
if (green_y != NULL)
*green_y = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.greeny, "cHRM green Y");
info_ptr->colorspace.end_points_xy.greeny, "cHRM green Y");
if (blue_x != NULL)
*blue_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluex,
"cHRM blue X");
"cHRM blue X");
if (blue_y != NULL)
*blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey,
"cHRM blue Y");
"cHRM blue Y");
return (PNG_INFO_cHRM);
}
@ -556,42 +556,42 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_uint_32 PNGAPI
png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
double *red_X, double *red_Y, double *red_Z, double *green_X,
double *green_Y, double *green_Z, double *blue_X, double *blue_Y,
double *blue_Z)
double *red_X, double *red_Y, double *red_Z, double *green_X,
double *green_Y, double *green_Z, double *blue_X, double *blue_Y,
double *blue_Z)
{
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
if (red_X != NULL)
*red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X,
"cHRM red X");
"cHRM red X");
if (red_Y != NULL)
*red_Y = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Y,
"cHRM red Y");
"cHRM red Y");
if (red_Z != NULL)
*red_Z = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Z,
"cHRM red Z");
"cHRM red Z");
if (green_X != NULL)
*green_X = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.green_X, "cHRM green X");
info_ptr->colorspace.end_points_XYZ.green_X, "cHRM green X");
if (green_Y != NULL)
*green_Y = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.green_Y, "cHRM green Y");
info_ptr->colorspace.end_points_XYZ.green_Y, "cHRM green Y");
if (green_Z != NULL)
*green_Z = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.green_Z, "cHRM green Z");
info_ptr->colorspace.end_points_XYZ.green_Z, "cHRM green Z");
if (blue_X != NULL)
*blue_X = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_X, "cHRM blue X");
info_ptr->colorspace.end_points_XYZ.blue_X, "cHRM blue X");
if (blue_Y != NULL)
*blue_Y = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_Y, "cHRM blue Y");
info_ptr->colorspace.end_points_XYZ.blue_Y, "cHRM blue Y");
if (blue_Z != NULL)
*blue_Z = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z");
info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z");
return (PNG_INFO_cHRM);
}
@ -681,8 +681,8 @@ png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_debug1(1, "in %s retrieval function", "gAMA");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
file_gamma != NULL)
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
file_gamma != NULL)
{
*file_gamma = info_ptr->colorspace.gamma;
return (PNG_INFO_gAMA);
@ -704,7 +704,7 @@ png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr,
file_gamma != NULL)
{
*file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma,
"png_get_gAMA");
"png_get_gAMA");
return (PNG_INFO_gAMA);
}
@ -901,7 +901,7 @@ png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*/
*width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width");
*height = png_fixed(png_ptr, atof(info_ptr->scal_s_height),
"sCAL height");
"sCAL height");
return (PNG_INFO_sCAL);
}

20
pngmem.c
View File

@ -1,8 +1,8 @@
/* pngmem.c - stub functions for 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 1.6.24 [(PENDING RELEASE)]
* Copyright (c) 1998-2002,2004,2006-2014,2016 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.)
*
@ -66,7 +66,7 @@ png_calloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED)
*/
PNG_FUNCTION(png_voidp /* PRIVATE */,
png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size),
PNG_ALLOCATED)
PNG_ALLOCATED)
{
/* Moved to png_malloc_base from png_malloc_default in 1.6.0; the DOS
* allocators have also been removed in 1.6.0, so any 16-bit system now has
@ -107,7 +107,7 @@ png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size),
*/
static png_voidp
png_malloc_array_checked(png_const_structrp png_ptr, int nelements,
size_t element_size)
size_t element_size)
{
png_alloc_size_t req = nelements; /* known to be > 0 */
@ -120,7 +120,7 @@ png_malloc_array_checked(png_const_structrp png_ptr, int nelements,
PNG_FUNCTION(png_voidp /* PRIVATE */,
png_malloc_array,(png_const_structrp png_ptr, int nelements,
size_t element_size),PNG_ALLOCATED)
size_t element_size),PNG_ALLOCATED)
{
if (nelements <= 0 || element_size == 0)
png_error(png_ptr, "internal error: array alloc");
@ -130,7 +130,7 @@ png_malloc_array,(png_const_structrp png_ptr, int nelements,
PNG_FUNCTION(png_voidp /* PRIVATE */,
png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array,
int old_elements, int add_elements, size_t element_size),PNG_ALLOCATED)
int old_elements, int add_elements, size_t element_size),PNG_ALLOCATED)
{
/* These are internal errors: */
if (add_elements <= 0 || element_size == 0 || old_elements < 0 ||
@ -143,7 +143,7 @@ png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array,
if (add_elements <= INT_MAX - old_elements)
{
png_voidp new_array = png_malloc_array_checked(png_ptr,
old_elements+add_elements, element_size);
old_elements+add_elements, element_size);
if (new_array != NULL)
{
@ -154,7 +154,7 @@ png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array,
memcpy(new_array, old_array, element_size*(unsigned)old_elements);
memset((char*)new_array + element_size*(unsigned)old_elements, 0,
element_size*(unsigned)add_elements);
element_size*(unsigned)add_elements);
return new_array;
}
@ -187,7 +187,7 @@ png_malloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED)
#ifdef PNG_USER_MEM_SUPPORTED
PNG_FUNCTION(png_voidp,PNGAPI
png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size),
PNG_ALLOCATED PNG_DEPRECATED)
PNG_ALLOCATED PNG_DEPRECATED)
{
png_voidp ret;
@ -210,7 +210,7 @@ png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size),
*/
PNG_FUNCTION(png_voidp,PNGAPI
png_malloc_warn,(png_const_structrp png_ptr, png_alloc_size_t size),
PNG_ALLOCATED)
PNG_ALLOCATED)
{
if (png_ptr != NULL)
{

22
pngpread.c
View File

@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* Last changed in libpng 1.6.23 [June 9, 2016]
* Last changed in libpng 1.6.24 [(PENDING RELEASE)]
* 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.)
@ -77,11 +77,11 @@ png_process_data_pause(png_structrp png_ptr, int save)
png_uint_32 PNGAPI
png_process_data_skip(png_structrp png_ptr)
{
/* TODO: Deprecate and remove this API.
* Somewhere the implementation of this seems to have been lost,
* or abandoned. It was only to support some internal back-door access
* to png_struct) in libpng-1.4.x.
*/
/* TODO: Deprecate and remove this API.
* Somewhere the implementation of this seems to have been lost,
* or abandoned. It was only to support some internal back-door access
* to png_struct) in libpng-1.4.x.
*/
png_app_warning(png_ptr,
"png_process_data_skip is not implemented in any current version of libpng");
return 0;
@ -410,7 +410,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
{
PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length,
PNG_HANDLE_CHUNK_AS_DEFAULT);
PNG_HANDLE_CHUNK_AS_DEFAULT);
}
png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
@ -521,7 +521,7 @@ png_push_save_buffer(png_structrp png_ptr)
void /* PRIVATE */
png_push_restore_buffer(png_structrp png_ptr, png_bytep buffer,
png_size_t buffer_length)
png_size_t buffer_length)
{
png_ptr->current_buffer = buffer;
png_ptr->current_buffer_size = buffer_length;
@ -624,7 +624,7 @@ png_push_read_IDAT(png_structrp png_ptr)
void /* PRIVATE */
png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
png_size_t buffer_length)
png_size_t buffer_length)
{
/* The caller checks for a non-zero buffer length. */
if (!(buffer_length > 0) || buffer == NULL)
@ -782,7 +782,7 @@ png_push_process_row(png_structrp png_ptr)
{
if (png_ptr->pass < 6)
png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass,
png_ptr->transformations);
png_ptr->transformations);
switch (png_ptr->pass)
{
@ -1044,7 +1044,7 @@ png_push_have_row(png_structrp png_ptr, png_bytep row)
{
if (png_ptr->row_fn != NULL)
(*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number,
(int)png_ptr->pass);
(int)png_ptr->pass);
}
#ifdef PNG_READ_INTERLACING_SUPPORTED

217
pngread.c
View File

@ -28,10 +28,10 @@ png_create_read_struct,(png_const_charp user_png_ver, png_voidp error_ptr,
{
#ifndef PNG_USER_MEM_SUPPORTED
png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
error_fn, warn_fn, NULL, NULL, NULL);
error_fn, warn_fn, NULL, NULL, NULL);
#else
return png_create_read_struct_2(user_png_ver, error_ptr, error_fn,
warn_fn, NULL, NULL, NULL);
warn_fn, NULL, NULL, NULL);
}
/* Alternate create PNG structure for reading, and allocate any memory
@ -43,7 +43,7 @@ png_create_read_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr,
png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED)
{
png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
error_fn, warn_fn, mem_ptr, malloc_fn, free_fn);
error_fn, warn_fn, mem_ptr, malloc_fn, free_fn);
#endif /* USER_MEM */
if (png_ptr != NULL)
@ -252,7 +252,7 @@ png_read_info(png_structrp png_ptr, png_inforp info_ptr)
else
png_handle_unknown(png_ptr, info_ptr, length,
PNG_HANDLE_CHUNK_AS_DEFAULT);
PNG_HANDLE_CHUNK_AS_DEFAULT);
}
}
#endif /* SEQUENTIAL_READ */
@ -279,7 +279,7 @@ png_read_update_info(png_structrp png_ptr, png_inforp info_ptr)
/* New in 1.6.0 this avoids the bug of doing the initializations twice */
else
png_app_error(png_ptr,
"png_read_update_info/png_start_read_image: duplicate call");
"png_read_update_info/png_start_read_image: duplicate call");
}
}
@ -302,7 +302,7 @@ png_start_read_image(png_structrp png_ptr)
/* New in 1.6.0 this avoids the bug of doing the initializations twice */
else
png_app_error(png_ptr,
"png_start_read_image/png_read_update_info: duplicate call");
"png_start_read_image/png_read_update_info: duplicate call");
}
}
#endif /* SEQUENTIAL_READ */
@ -540,7 +540,7 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
{
if (png_ptr->row_buf[0] < PNG_FILTER_VALUE_LAST)
png_read_filter_row(png_ptr, &row_info, png_ptr->row_buf + 1,
png_ptr->prev_row + 1, png_ptr->row_buf[0]);
png_ptr->prev_row + 1, png_ptr->row_buf[0]);
else
png_error(png_ptr, "bad adaptive filter value");
}
@ -584,7 +584,7 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
{
if (png_ptr->pass < 6)
png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass,
png_ptr->transformations);
png_ptr->transformations);
if (dsp_row != NULL)
png_combine_row(png_ptr, dsp_row, 1/*display*/);
@ -719,7 +719,7 @@ png_read_image(png_structrp png_ptr, png_bytepp image)
* but the caller should do it!
*/
png_warning(png_ptr, "Interlace handling should be turned on when "
"using png_read_image");
"using png_read_image");
/* Make sure this is set correctly */
png_ptr->num_rows = png_ptr->height;
}
@ -919,7 +919,7 @@ png_read_end(png_structrp png_ptr, png_inforp info_ptr)
else
png_handle_unknown(png_ptr, info_ptr, length,
PNG_HANDLE_CHUNK_AS_DEFAULT);
PNG_HANDLE_CHUNK_AS_DEFAULT);
} while ((png_ptr->mode & PNG_HAVE_IEND) == 0);
}
#endif /* SEQUENTIAL_READ */
@ -1030,8 +1030,7 @@ png_set_read_status_fn(png_structrp png_ptr, png_read_status_ptr read_row_fn)
#ifdef PNG_INFO_IMAGE_SUPPORTED
void PNGAPI
png_read_png(png_structrp png_ptr, png_inforp info_ptr,
int transforms,
voidp params)
int transforms, voidp params)
{
if (png_ptr == NULL || info_ptr == NULL)
return;
@ -1307,7 +1306,7 @@ png_image_read_init(png_imagep image)
if (info_ptr != NULL)
{
png_controlp control = png_voidcast(png_controlp,
png_malloc_warn(png_ptr, (sizeof *control)));
png_malloc_warn(png_ptr, (sizeof *control)));
if (control != NULL)
{
@ -1470,12 +1469,12 @@ png_image_begin_read_from_stdio(png_imagep image, FILE* file)
else
return png_image_error(image,
"png_image_begin_read_from_stdio: invalid argument");
"png_image_begin_read_from_stdio: invalid argument");
}
else if (image != NULL)
return png_image_error(image,
"png_image_begin_read_from_stdio: incorrect PNG_IMAGE_VERSION");
"png_image_begin_read_from_stdio: incorrect PNG_IMAGE_VERSION");
return 0;
}
@ -1508,12 +1507,12 @@ png_image_begin_read_from_file(png_imagep image, const char *file_name)
else
return png_image_error(image,
"png_image_begin_read_from_file: invalid argument");
"png_image_begin_read_from_file: invalid argument");
}
else if (image != NULL)
return png_image_error(image,
"png_image_begin_read_from_file: incorrect PNG_IMAGE_VERSION");
"png_image_begin_read_from_file: incorrect PNG_IMAGE_VERSION");
return 0;
}
@ -1550,7 +1549,7 @@ png_image_memory_read(png_structp png_ptr, png_bytep out, png_size_t need)
}
int PNGAPI png_image_begin_read_from_memory(png_imagep image,
png_const_voidp memory, png_size_t size)
png_const_voidp memory, png_size_t size)
{
if (image != NULL && image->version == PNG_IMAGE_VERSION)
{
@ -1573,12 +1572,12 @@ int PNGAPI png_image_begin_read_from_memory(png_imagep image,
else
return png_image_error(image,
"png_image_begin_read_from_memory: invalid argument");
"png_image_begin_read_from_memory: invalid argument");
}
else if (image != NULL)
return png_image_error(image,
"png_image_begin_read_from_memory: incorrect PNG_IMAGE_VERSION");
"png_image_begin_read_from_memory: incorrect PNG_IMAGE_VERSION");
return 0;
}
@ -1624,11 +1623,11 @@ png_image_skip_unused_chunks(png_structrp png_ptr)
* IHDR, PLTE, tRNS, IDAT, and IEND chunks.
*/
png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_NEVER,
NULL, -1);
NULL, -1);
/* But do not ignore image data handling chunks */
png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_AS_DEFAULT,
chunks_to_process, (int)/*SAFE*/(sizeof chunks_to_process)/5);
chunks_to_process, (int)/*SAFE*/(sizeof chunks_to_process)/5);
}
}
@ -1696,7 +1695,7 @@ decode_gamma(png_image_read_control *display, png_uint_32 value, int encoding)
#ifdef __GNUC__
default:
png_error(display->image->opaque->png_ptr,
"unexpected encoding (internal error)");
"unexpected encoding (internal error)");
#endif
}
@ -1705,8 +1704,8 @@ decode_gamma(png_image_read_control *display, png_uint_32 value, int encoding)
static png_uint_32
png_colormap_compose(png_image_read_control *display,
png_uint_32 foreground, int foreground_encoding, png_uint_32 alpha,
png_uint_32 background, int encoding)
png_uint_32 foreground, int foreground_encoding, png_uint_32 alpha,
png_uint_32 background, int encoding)
{
/* The file value is composed on the background, the background has the given
* encoding and so does the result, the file is encoded with P_FILE and the
@ -1742,14 +1741,14 @@ png_colormap_compose(png_image_read_control *display,
*/
static void
png_create_colormap_entry(png_image_read_control *display,
png_uint_32 ip, png_uint_32 red, png_uint_32 green, png_uint_32 blue,
png_uint_32 alpha, int encoding)
png_uint_32 ip, png_uint_32 red, png_uint_32 green, png_uint_32 blue,
png_uint_32 alpha, int encoding)
{
png_imagep image = display->image;
const int output_encoding = (image->format & PNG_FORMAT_FLAG_LINEAR) != 0 ?
P_LINEAR : P_sRGB;
P_LINEAR : P_sRGB;
const int convert_to_Y = (image->format & PNG_FORMAT_FLAG_COLOR) == 0 &&
(red != green || green != blue);
(red != green || green != blue);
if (ip > 255)
png_error(image->opaque->png_ptr, "color-map index out of range");
@ -2029,7 +2028,7 @@ make_ga_colormap(png_image_read_control *display)
for (g=0; g<6; ++g)
png_create_colormap_entry(display, i++, g*51, g*51, g*51, a*51,
P_sRGB);
P_sRGB);
}
return i;
@ -2053,7 +2052,7 @@ make_rgb_colormap(png_image_read_control *display)
for (b=0; b<6; ++b)
png_create_colormap_entry(display, i++, r*51, g*51, b*51, 255,
P_sRGB);
P_sRGB);
}
}
@ -2105,7 +2104,7 @@ png_image_read_colormap(png_voidp argument)
else if (display->background == NULL /* no way to remove it */)
png_error(png_ptr,
"a background color must be supplied to remove alpha/transparency");
"background color must be supplied to remove alpha/transparency");
/* Get a copy of the background color (this avoids repeating the checks
* below.) The encoding is 8-bit sRGB or 16-bit linear, depending on the
@ -2200,7 +2199,7 @@ png_image_read_colormap(png_voidp argument)
*/
if (i != trans)
png_create_colormap_entry(display, i, val, val, val, 255,
P_FILE/*8-bit with file gamma*/);
P_FILE/*8-bit with file gamma*/);
/* Else this entry is transparent. The colors don't matter if
* there is an alpha channel (back_alpha == 0), but it does no
@ -2212,7 +2211,7 @@ png_image_read_colormap(png_voidp argument)
*/
else
png_create_colormap_entry(display, i, back_r, back_g, back_b,
back_alpha, output_encoding);
back_alpha, output_encoding);
}
/* We need libpng to preserve the original encoding. */
@ -2277,7 +2276,7 @@ png_image_read_colormap(png_voidp argument)
* matches.
*/
png_create_colormap_entry(display, gray, back_g, back_g,
back_g, 65535, P_LINEAR);
back_g, 65535, P_LINEAR);
}
/* The background passed to libpng, however, must be the
@ -2291,8 +2290,8 @@ png_image_read_colormap(png_voidp argument)
* doesn't.
*/
png_set_background_fixed(png_ptr, &c,
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
output_processing = PNG_CMAP_NONE;
break;
@ -2322,7 +2321,7 @@ png_image_read_colormap(png_voidp argument)
* background color at full precision.
*/
png_create_colormap_entry(display, 254, back_r, back_g, back_b,
back_alpha, output_encoding);
back_alpha, output_encoding);
}
else
@ -2390,7 +2389,7 @@ png_image_read_colormap(png_voidp argument)
/* And make sure the corresponding palette entry matches. */
png_create_colormap_entry(display, gray, back_g, back_g,
back_g, 65535, P_LINEAR);
back_g, 65535, P_LINEAR);
}
/* The background passed to libpng, however, must be the sRGB
@ -2400,8 +2399,8 @@ png_image_read_colormap(png_voidp argument)
c.gray = c.red = c.green = c.blue = (png_uint_16)gray;
png_set_background_fixed(png_ptr, &c,
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
output_processing = PNG_CMAP_NONE;
}
@ -2421,7 +2420,7 @@ png_image_read_colormap(png_voidp argument)
{
png_uint_32 gray = (i * 256 + 115) / 231;
png_create_colormap_entry(display, i++, gray, gray, gray,
255, P_sRGB);
255, P_sRGB);
}
/* NOTE: this preserves the full precision of the application
@ -2430,13 +2429,13 @@ png_image_read_colormap(png_voidp argument)
background_index = i;
png_create_colormap_entry(display, i++, back_r, back_g, back_b,
#ifdef __COVERITY__
/* Coverity claims that output_encoding cannot be 2 (P_LINEAR)
* here.
*/ 255U,
/* Coverity claims that output_encoding
* cannot be 2 (P_LINEAR) here.
*/ 255U,
#else
output_encoding == P_LINEAR ? 65535U : 255U,
output_encoding == P_LINEAR ? 65535U : 255U,
#endif
output_encoding);
output_encoding);
/* For non-opaque input composite on the sRGB background - this
* requires inverting the encoding for each component. The input
@ -2474,9 +2473,9 @@ png_image_read_colormap(png_voidp argument)
png_uint_32 gray = png_sRGB_table[g*51] * alpha;
png_create_colormap_entry(display, i++,
PNG_sRGB_FROM_LINEAR(gray + back_rx),
PNG_sRGB_FROM_LINEAR(gray + back_gx),
PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, P_sRGB);
PNG_sRGB_FROM_LINEAR(gray + back_rx),
PNG_sRGB_FROM_LINEAR(gray + back_gx),
PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, P_sRGB);
}
}
@ -2502,7 +2501,7 @@ png_image_read_colormap(png_voidp argument)
* png_set_tRNS_to_alpha before png_set_background_fixed.
*/
png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE, -1,
-1);
-1);
data_encoding = P_sRGB;
/* The output will now be one or two 8-bit gray or gray+alpha
@ -2578,13 +2577,13 @@ png_image_read_colormap(png_voidp argument)
gray = png_sRGB_table[gray]; /* now P_LINEAR */
gray = PNG_DIV257(png_gamma_16bit_correct(gray,
png_ptr->colorspace.gamma)); /* now P_FILE */
png_ptr->colorspace.gamma)); /* now P_FILE */
/* And make sure the corresponding palette entry contains
* exactly the required sRGB value.
*/
png_create_colormap_entry(display, gray, back_g, back_g,
back_g, 0/*unused*/, output_encoding);
back_g, 0/*unused*/, output_encoding);
}
else if (output_encoding == P_LINEAR)
@ -2609,8 +2608,8 @@ png_image_read_colormap(png_voidp argument)
*/
expand_tRNS = 1;
png_set_background_fixed(png_ptr, &c,
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
}
output_processing = PNG_CMAP_NONE;
@ -2644,7 +2643,7 @@ png_image_read_colormap(png_voidp argument)
/* Add a transparent entry. */
png_create_colormap_entry(display, cmap_entries, 255, 255,
255, 0, P_sRGB);
255, 0, P_sRGB);
/* This is stored as the background index for the processing
* algorithm.
@ -2665,7 +2664,7 @@ png_image_read_colormap(png_voidp argument)
*/
for (b=0; b<256; b = (b << 1) | 0x7f)
png_create_colormap_entry(display, cmap_entries++,
r, g, b, 128, P_sRGB);
r, g, b, 128, P_sRGB);
}
}
@ -2692,7 +2691,7 @@ png_image_read_colormap(png_voidp argument)
cmap_entries = make_rgb_colormap(display);
png_create_colormap_entry(display, cmap_entries, back_r,
back_g, back_b, 0/*unused*/, output_encoding);
back_g, back_b, 0/*unused*/, output_encoding);
if (output_encoding == P_LINEAR)
{
@ -2714,9 +2713,9 @@ png_image_read_colormap(png_voidp argument)
* index.
*/
if (memcmp((png_const_bytep)display->colormap +
sample_size * cmap_entries,
(png_const_bytep)display->colormap +
sample_size * PNG_RGB_INDEX(r,g,b),
sample_size * cmap_entries,
(png_const_bytep)display->colormap +
sample_size * PNG_RGB_INDEX(r,g,b),
sample_size) != 0)
{
/* The background color must be added. */
@ -2734,13 +2733,13 @@ png_image_read_colormap(png_voidp argument)
*/
for (b=0; b<256; b = (b << 1) | 0x7f)
png_create_colormap_entry(display, cmap_entries++,
png_colormap_compose(display, r, P_sRGB, 128,
back_r, output_encoding),
png_colormap_compose(display, g, P_sRGB, 128,
back_g, output_encoding),
png_colormap_compose(display, b, P_sRGB, 128,
back_b, output_encoding),
0/*unused*/, output_encoding);
png_colormap_compose(display, r, P_sRGB, 128,
back_r, output_encoding),
png_colormap_compose(display, g, P_sRGB, 128,
back_g, output_encoding),
png_colormap_compose(display, b, P_sRGB, 128,
back_b, output_encoding),
0/*unused*/, output_encoding);
}
}
@ -2758,8 +2757,8 @@ png_image_read_colormap(png_voidp argument)
c.blue = (png_uint_16)back_b;
png_set_background_fixed(png_ptr, &c,
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
output_processing = PNG_CMAP_RGB;
}
@ -2811,7 +2810,7 @@ png_image_read_colormap(png_voidp argument)
{
if (trans[i] == 0)
png_create_colormap_entry(display, i, back_r, back_g,
back_b, 0, output_encoding);
back_b, 0, output_encoding);
else
{
@ -2819,22 +2818,22 @@ png_image_read_colormap(png_voidp argument)
* on the sRGB color in 'back'.
*/
png_create_colormap_entry(display, i,
png_colormap_compose(display, colormap[i].red, P_FILE,
trans[i], back_r, output_encoding),
png_colormap_compose(display, colormap[i].green, P_FILE,
trans[i], back_g, output_encoding),
png_colormap_compose(display, colormap[i].blue, P_FILE,
trans[i], back_b, output_encoding),
output_encoding == P_LINEAR ? trans[i] * 257U :
trans[i],
output_encoding);
png_colormap_compose(display, colormap[i].red,
P_FILE, trans[i], back_r, output_encoding),
png_colormap_compose(display, colormap[i].green,
P_FILE, trans[i], back_g, output_encoding),
png_colormap_compose(display, colormap[i].blue,
P_FILE, trans[i], back_b, output_encoding),
output_encoding == P_LINEAR ? trans[i] * 257U :
trans[i],
output_encoding);
}
}
else
png_create_colormap_entry(display, i, colormap[i].red,
colormap[i].green, colormap[i].blue,
i < num_trans ? trans[i] : 255U, P_FILE/*8-bit*/);
colormap[i].green, colormap[i].blue,
i < num_trans ? trans[i] : 255U, P_FILE/*8-bit*/);
}
/* The PNG data may have indices packed in fewer than 8 bits, it
@ -2924,7 +2923,7 @@ static int
png_image_read_and_map(png_voidp argument)
{
png_image_read_control *display = png_voidcast(png_image_read_control*,
argument);
argument);
png_imagep image = display->image;
png_structrp png_ptr = image->opaque->png_ptr;
int passes;
@ -3061,7 +3060,7 @@ png_image_read_and_map(png_voidp argument)
if (alpha >= 196)
*outrow = PNG_RGB_INDEX(inrow[0], inrow[1],
inrow[2]);
inrow[2]);
else if (alpha < 64)
*outrow = PNG_CMAP_RGB_ALPHA_BACKGROUND;
@ -3113,7 +3112,7 @@ static int
png_image_read_colormapped(png_voidp argument)
{
png_image_read_control *display = png_voidcast(png_image_read_control*,
argument);
argument);
png_imagep image = display->image;
png_controlp control = image->opaque;
png_structrp png_ptr = control->png_ptr;
@ -3246,7 +3245,7 @@ static int
png_image_read_composite(png_voidp argument)
{
png_image_read_control *display = png_voidcast(png_image_read_control*,
argument);
argument);
png_imagep image = display->image;
png_structrp png_ptr = image->opaque->png_ptr;
int passes;
@ -3373,7 +3372,7 @@ static int
png_image_read_background(png_voidp argument)
{
png_image_read_control *display = png_voidcast(png_image_read_control*,
argument);
argument);
png_imagep image = display->image;
png_structrp png_ptr = image->opaque->png_ptr;
png_inforp info_ptr = image->opaque->info_ptr;
@ -3433,8 +3432,7 @@ png_image_read_background(png_voidp argument)
for (pass = 0; pass < passes; ++pass)
{
png_bytep row = png_voidcast(png_bytep,
display->first_row);
png_bytep row = png_voidcast(png_bytep, display->first_row);
unsigned int startx, stepx, stepy;
png_uint_32 y;
@ -3462,7 +3460,7 @@ png_image_read_background(png_voidp argument)
for (; y<height; y += stepy)
{
png_bytep inrow = png_voidcast(png_bytep,
display->local_row);
display->local_row);
png_bytep outrow = first_row + y * step_row;
png_const_bytep end_row = outrow + width;
@ -3507,7 +3505,7 @@ png_image_read_background(png_voidp argument)
for (; y<height; y += stepy)
{
png_bytep inrow = png_voidcast(png_bytep,
display->local_row);
display->local_row);
png_bytep outrow = first_row + y * step_row;
png_const_bytep end_row = outrow + width;
@ -3554,7 +3552,7 @@ png_image_read_background(png_voidp argument)
*/
{
png_uint_16p first_row = png_voidcast(png_uint_16p,
display->first_row);
display->first_row);
/* The division by two is safe because the caller passed in a
* stride which was multiplied by 2 (below) to get row_bytes.
*/
@ -3604,7 +3602,7 @@ png_image_read_background(png_voidp argument)
/* Read the row, which is packed: */
png_read_row(png_ptr, png_voidcast(png_bytep,
display->local_row), NULL);
display->local_row), NULL);
inrow = png_voidcast(png_const_uint_16p, display->local_row);
/* Now do the pre-multiplication on each pixel in this row.
@ -3653,7 +3651,7 @@ static int
png_image_read_direct(png_voidp argument)
{
png_image_read_control *display = png_voidcast(png_image_read_control*,
argument);
argument);
png_imagep image = display->image;
png_structrp png_ptr = image->opaque->png_ptr;
png_inforp info_ptr = image->opaque->info_ptr;
@ -3704,7 +3702,7 @@ png_image_read_direct(png_voidp argument)
do_local_background = 1/*maybe*/;
png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE,
PNG_RGB_TO_GRAY_DEFAULT, PNG_RGB_TO_GRAY_DEFAULT);
PNG_RGB_TO_GRAY_DEFAULT, PNG_RGB_TO_GRAY_DEFAULT);
}
change &= ~PNG_FORMAT_FLAG_COLOR;
@ -3763,7 +3761,7 @@ png_image_read_direct(png_voidp argument)
* final value.
*/
if (png_muldiv(&gtest, output_gamma, png_ptr->colorspace.gamma,
PNG_FP_1) != 0 && png_gamma_significant(gtest) == 0)
PNG_FP_1) != 0 && png_gamma_significant(gtest) == 0)
do_local_background = 0;
else if (mode == PNG_ALPHA_STANDARD)
@ -3826,8 +3824,8 @@ png_image_read_direct(png_voidp argument)
* pixels.
*/
png_set_background_fixed(png_ptr, &c,
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/,
0/*gamma: not used*/);
}
else /* compose on row: implemented below. */
@ -4077,7 +4075,7 @@ png_image_read_direct(png_voidp argument)
int PNGAPI
png_image_finish_read(png_imagep image, png_const_colorp background,
void *buffer, png_int_32 row_stride, void *colormap)
void *buffer, png_int_32 row_stride, void *colormap)
{
if (image != NULL && image->version == PNG_IMAGE_VERSION)
{
@ -4150,15 +4148,16 @@ png_image_finish_read(png_imagep image, png_const_colorp background,
* all the setup has already been done.
*/
if ((image->format & PNG_FORMAT_FLAG_COLORMAP) != 0)
result = png_safe_execute(image,
png_image_read_colormap, &display) &&
png_safe_execute(image,
png_image_read_colormapped, &display);
result =
png_safe_execute(image,
png_image_read_colormap, &display) &&
png_safe_execute(image,
png_image_read_colormapped, &display);
else
result =
png_safe_execute(image,
png_image_read_direct, &display);
png_image_read_direct, &display);
png_image_free(image);
return result;
@ -4166,27 +4165,27 @@ png_image_finish_read(png_imagep image, png_const_colorp background,
else
return png_image_error(image,
"png_image_finish_read[color-map]: no color-map");
"png_image_finish_read[color-map]: no color-map");
}
else
return png_image_error(image,
"png_image_finish_read: image too large");
"png_image_finish_read: image too large");
}
else
return png_image_error(image,
"png_image_finish_read: invalid argument");
"png_image_finish_read: invalid argument");
}
else
return png_image_error(image,
"png_image_finish_read: row_stride too large");
"png_image_finish_read: row_stride too large");
}
else if (image != NULL)
return png_image_error(image,
"png_image_finish_read: damaged PNG_IMAGE_VERSION");
"png_image_finish_read: damaged PNG_IMAGE_VERSION");
return 0;
}

6
pngrio.c
View File

@ -1,8 +1,8 @@
/* pngrio.c - functions for data input
*
* Last changed in libpng 1.6.17 [March 26, 2015]
* Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* Last changed in libpng 1.6.24 [(PENDING RELEASE)]
* 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.)
*
@ -85,7 +85,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
*/
void PNGAPI
png_set_read_fn(png_structrp png_ptr, png_voidp io_ptr,
png_rw_ptr read_data_fn)
png_rw_ptr read_data_fn)
{
if (png_ptr == NULL)
return;

50
pngrtran.c
View File

@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* Last changed in libpng 1.6.22 [May 26, 2016]
* Last changed in libpng 1.6.24 [(PENDING RELEASE)]
* 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.)
@ -48,7 +48,7 @@ png_set_crc_action(png_structrp png_ptr, int crit_action, int ancil_action)
case PNG_CRC_WARN_DISCARD: /* Not a valid action for critical data */
png_warning(png_ptr,
"Can't discard critical data on CRC error");
"Can't discard critical data on CRC error");
case PNG_CRC_ERROR_QUIT: /* Error/quit */
case PNG_CRC_DEFAULT:
@ -101,7 +101,7 @@ png_rtran_ok(png_structrp png_ptr, int need_IHDR)
{
if ((png_ptr->flags & PNG_FLAG_ROW_INIT) != 0)
png_app_error(png_ptr,
"invalid after png_start_read_image or png_read_update_info");
"invalid after png_start_read_image or png_read_update_info");
else if (need_IHDR && (png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_app_error(png_ptr, "invalid before the PNG header has been read");
@ -209,7 +209,7 @@ png_set_strip_alpha(png_structrp png_ptr)
#if defined(PNG_READ_ALPHA_MODE_SUPPORTED) || defined(PNG_READ_GAMMA_SUPPORTED)
static png_fixed_point
translate_gamma_flags(png_structrp png_ptr, png_fixed_point output_gamma,
int is_screen)
int is_screen)
{
/* Check for flag values. The main reason for having the old Mac value as a
* flag is that it is pretty near impossible to work out what the correct
@ -273,7 +273,7 @@ convert_gamma_value(png_structrp png_ptr, double output_gamma)
#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
void PNGFAPI
png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
png_fixed_point output_gamma)
png_fixed_point output_gamma)
{
int compose = 0;
png_fixed_point file_gamma;
@ -377,7 +377,7 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
if ((png_ptr->transformations & PNG_COMPOSE) != 0)
png_error(png_ptr,
"conflicting calls to set alpha mode and background");
"conflicting calls to set alpha mode and background");
png_ptr->transformations |= PNG_COMPOSE;
}
@ -388,7 +388,7 @@ void PNGAPI
png_set_alpha_mode(png_structrp png_ptr, int mode, double output_gamma)
{
png_set_alpha_mode_fixed(png_ptr, mode, convert_gamma_value(png_ptr,
output_gamma));
output_gamma));
}
# endif
#endif
@ -802,7 +802,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
#ifdef PNG_READ_GAMMA_SUPPORTED
void PNGFAPI
png_set_gamma_fixed(png_structrp png_ptr, png_fixed_point scrn_gamma,
png_fixed_point file_gamma)
png_fixed_point file_gamma)
{
png_debug(1, "in png_set_gamma_fixed");
@ -844,7 +844,7 @@ void PNGAPI
png_set_gamma(png_structrp png_ptr, double scrn_gamma, double file_gamma)
{
png_set_gamma_fixed(png_ptr, convert_gamma_value(png_ptr, scrn_gamma),
convert_gamma_value(png_ptr, file_gamma));
convert_gamma_value(png_ptr, file_gamma));
}
# endif /* FLOATING_POINT */
#endif /* READ_GAMMA */
@ -990,7 +990,7 @@ png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action,
* that it just worked and get a memory overwrite.
*/
png_error(png_ptr,
"Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED");
"Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED");
/* png_ptr->transformations &= ~PNG_RGB_TO_GRAY; */
}
@ -1017,7 +1017,7 @@ png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action,
{
if (red >= 0 && green >= 0)
png_app_warning(png_ptr,
"ignoring out of range rgb_to_gray coefficients");
"ignoring out of range rgb_to_gray coefficients");
/* Use the defaults, from the cHRM chunk if set, else the historical
* values which are close to the sRGB/HDTV/ITU-Rec 709 values. See
@ -1026,7 +1026,7 @@ png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action,
* something has already provided a default.
*/
if (png_ptr->rgb_to_gray_red_coeff == 0 &&
png_ptr->rgb_to_gray_green_coeff == 0)
png_ptr->rgb_to_gray_green_coeff == 0)
{
png_ptr->rgb_to_gray_red_coeff = 6968;
png_ptr->rgb_to_gray_green_coeff = 23434;
@ -1043,10 +1043,10 @@ png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action,
void PNGAPI
png_set_rgb_to_gray(png_structrp png_ptr, int error_action, double red,
double green)
double green)
{
png_set_rgb_to_gray_fixed(png_ptr, error_action,
png_fixed(png_ptr, red, "rgb to gray red coefficient"),
png_fixed(png_ptr, red, "rgb to gray red coefficient"),
png_fixed(png_ptr, green, "rgb to gray green coefficient"));
}
#endif /* FLOATING POINT */
@ -1303,7 +1303,7 @@ png_init_read_transformations(png_structrp png_ptr)
{
if (png_ptr->screen_gamma != 0) /* screen set too */
gamma_correction = png_gamma_threshold(png_ptr->colorspace.gamma,
png_ptr->screen_gamma);
png_ptr->screen_gamma);
else
/* Assume the output matches the input; a long time default behavior
@ -1584,7 +1584,7 @@ png_init_read_transformations(png_structrp png_ptr)
*/
if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
png_warning(png_ptr,
"libpng does not support gamma+background+rgb_to_gray");
"libpng does not support gamma+background+rgb_to_gray");
if ((png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) != 0)
{
@ -1620,13 +1620,13 @@ png_init_read_transformations(png_structrp png_ptr)
case PNG_BACKGROUND_GAMMA_FILE:
g = png_reciprocal(png_ptr->colorspace.gamma);
gs = png_reciprocal2(png_ptr->colorspace.gamma,
png_ptr->screen_gamma);
png_ptr->screen_gamma);
break;
case PNG_BACKGROUND_GAMMA_UNIQUE:
g = png_reciprocal(png_ptr->background_gamma);
gs = png_reciprocal2(png_ptr->background_gamma,
png_ptr->screen_gamma);
png_ptr->screen_gamma);
break;
default:
g = PNG_FP_1; /* back_1 */
@ -1654,11 +1654,11 @@ png_init_read_transformations(png_structrp png_ptr)
if (png_gamma_significant(g) != 0)
{
back_1.red = png_gamma_8bit_correct(png_ptr->background.red,
g);
g);
back_1.green = png_gamma_8bit_correct(
png_ptr->background.green, g);
png_ptr->background.green, g);
back_1.blue = png_gamma_8bit_correct(png_ptr->background.blue,
g);
g);
}
else
@ -1729,7 +1729,7 @@ png_init_read_transformations(png_structrp png_ptr)
case PNG_BACKGROUND_GAMMA_FILE:
g = png_reciprocal(png_ptr->colorspace.gamma);
gs = png_reciprocal2(png_ptr->colorspace.gamma,
png_ptr->screen_gamma);
png_ptr->screen_gamma);
break;
case PNG_BACKGROUND_GAMMA_UNIQUE:
@ -4195,7 +4195,7 @@ png_do_encode_alpha(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
*/
static void
png_do_expand_palette(png_row_infop row_info, png_bytep row,
png_const_colorp palette, png_const_bytep trans_alpha, int num_trans)
png_const_colorp palette, png_const_bytep trans_alpha, int num_trans)
{
int shift, value;
png_bytep sp, dp;
@ -4502,7 +4502,7 @@ png_do_expand(png_row_infop row_info, png_bytep row,
row_info->channels = 2;
row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
row_width);
row_width);
}
}
else if (row_info->color_type == PNG_COLOR_TYPE_RGB &&
@ -4762,7 +4762,7 @@ png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
(row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
png_do_strip_channel(row_info, png_ptr->row_buf + 1,
0 /* at_start == false, because SWAP_ALPHA happens later */);
0 /* at_start == false, because SWAP_ALPHA happens later */);
#endif
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED

118
pngrutil.c
View File

@ -599,9 +599,9 @@ png_inflate(png_structrp png_ptr, png_uint_32 owner, int finish,
*/
static int
png_decompress_chunk(png_structrp png_ptr,
png_uint_32 chunklength, png_uint_32 prefix_size,
png_alloc_size_t *newlength /* must be initialized to the maximum! */,
int terminate /*add a '\0' to the end of the uncompressed data*/)
png_uint_32 chunklength, png_uint_32 prefix_size,
png_alloc_size_t *newlength /* must be initialized to the maximum! */,
int terminate /*add a '\0' to the end of the uncompressed data*/)
{
/* TODO: implement different limits for different types of chunk.
*
@ -638,8 +638,8 @@ png_decompress_chunk(png_structrp png_ptr,
png_uint_32 lzsize = chunklength - prefix_size;
ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/,
/* input: */ png_ptr->read_buffer + prefix_size, &lzsize,
/* output: */ NULL, newlength);
/* input: */ png_ptr->read_buffer + prefix_size, &lzsize,
/* output: */ NULL, newlength);
if (ret == Z_STREAM_END)
{
@ -659,15 +659,15 @@ png_decompress_chunk(png_structrp png_ptr,
*/
png_alloc_size_t new_size = *newlength;
png_alloc_size_t buffer_size = prefix_size + new_size +
(terminate != 0);
(terminate != 0);
png_bytep text = png_voidcast(png_bytep, png_malloc_base(png_ptr,
buffer_size));
buffer_size));
if (text != NULL)
{
ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/,
png_ptr->read_buffer + prefix_size, &lzsize,
text + prefix_size, newlength);
png_ptr->read_buffer + prefix_size, &lzsize,
text + prefix_size, newlength);
if (ret == Z_STREAM_END)
{
@ -762,8 +762,8 @@ png_decompress_chunk(png_structrp png_ptr,
*/
static int
png_inflate_read(png_structrp png_ptr, png_bytep read_buffer, uInt read_size,
png_uint_32p chunk_bytes, png_bytep next_out, png_alloc_size_t *out_size,
int finish)
png_uint_32p chunk_bytes, png_bytep next_out, png_alloc_size_t *out_size,
int finish)
{
if (png_ptr->zowner == png_ptr->chunk_name)
{
@ -802,8 +802,8 @@ png_inflate_read(png_structrp png_ptr, png_bytep read_buffer, uInt read_size,
* the available output is produced; this allows reading of truncated
* streams.
*/
ret = PNG_INFLATE(png_ptr,
*chunk_bytes > 0 ? Z_NO_FLUSH : (finish ? Z_FINISH : Z_SYNC_FLUSH));
ret = PNG_INFLATE(png_ptr, *chunk_bytes > 0 ?
Z_NO_FLUSH : (finish ? Z_FINISH : Z_SYNC_FLUSH));
}
while (ret == Z_OK && (*out_size > 0 || png_ptr->zstream.avail_out > 0));
@ -1292,7 +1292,7 @@ png_handle_cHRM(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
png_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM;
(void)png_colorspace_set_chromaticities(png_ptr, &png_ptr->colorspace, &xy,
1/*prefer cHRM values*/);
1/*prefer cHRM values*/);
png_colorspace_sync(png_ptr, info_ptr);
}
#endif
@ -1432,8 +1432,8 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
png_ptr->zstream.next_in = (Bytef*)keyword + (keyword_length+2);
png_ptr->zstream.avail_in = read_length;
(void)png_inflate_read(png_ptr, local_buffer,
(sizeof local_buffer), &length, profile_header, &size,
0/*finish: don't, because the output is too small*/);
(sizeof local_buffer), &length, profile_header, &size,
0/*finish: don't, because the output is too small*/);
if (size == 0)
{
@ -1443,14 +1443,14 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
png_get_uint_32(profile_header);
if (png_icc_check_length(png_ptr, &png_ptr->colorspace,
keyword, profile_length) != 0)
keyword, profile_length) != 0)
{
/* The length is apparently ok, so we can check the 132
* byte header.
*/
if (png_icc_check_header(png_ptr, &png_ptr->colorspace,
keyword, profile_length, profile_header,
png_ptr->color_type) != 0)
keyword, profile_length, profile_header,
png_ptr->color_type) != 0)
{
/* Now read the tag table; a variable size buffer is
* needed at this point, allocate one for the whole
@ -1458,20 +1458,20 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
* that none of these stuff will overflow.
*/
const png_uint_32 tag_count = png_get_uint_32(
profile_header+128);
profile_header+128);
png_bytep profile = png_read_buffer(png_ptr,
profile_length, 2/*silent*/);
profile_length, 2/*silent*/);
if (profile != NULL)
{
memcpy(profile, profile_header,
(sizeof profile_header));
(sizeof profile_header));
size = 12 * tag_count;
(void)png_inflate_read(png_ptr, local_buffer,
(sizeof local_buffer), &length,
profile + (sizeof profile_header), &size, 0);
(sizeof local_buffer), &length,
profile + (sizeof profile_header), &size, 0);
/* Still expect a buffer error because we expect
* there to be some tag data!
@ -1479,22 +1479,22 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
if (size == 0)
{
if (png_icc_check_tag_table(png_ptr,
&png_ptr->colorspace, keyword, profile_length,
profile) != 0)
&png_ptr->colorspace, keyword, profile_length,
profile) != 0)
{
/* The profile has been validated for basic
* security issues, so read the whole thing in.
*/
size = profile_length - (sizeof profile_header)
- 12 * tag_count;
- 12 * tag_count;
(void)png_inflate_read(png_ptr, local_buffer,
(sizeof local_buffer), &length,
profile + (sizeof profile_header) +
12 * tag_count, &size, 1/*finish*/);
(sizeof local_buffer), &length,
profile + (sizeof profile_header) +
12 * tag_count, &size, 1/*finish*/);
if (length > 0 && !(png_ptr->flags &
PNG_FLAG_BENIGN_ERRORS_WARN))
PNG_FLAG_BENIGN_ERRORS_WARN))
errmsg = "extra compressed data";
/* But otherwise allow extra data: */
@ -1506,7 +1506,7 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
* keep going.
*/
png_chunk_warning(png_ptr,
"extra compressed data");
"extra compressed data");
}
png_crc_finish(png_ptr, length);
@ -1515,25 +1515,25 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
# if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0
/* Check for a match against sRGB */
png_icc_set_sRGB(png_ptr,
&png_ptr->colorspace, profile,
png_ptr->zstream.adler);
&png_ptr->colorspace, profile,
png_ptr->zstream.adler);
# endif
/* Steal the profile for info_ptr. */
if (info_ptr != NULL)
{
png_free_data(png_ptr, info_ptr,
PNG_FREE_ICCP, 0);
PNG_FREE_ICCP, 0);
info_ptr->iccp_name = png_voidcast(char*,
png_malloc_base(png_ptr,
keyword_length+1));
png_malloc_base(png_ptr,
keyword_length+1));
if (info_ptr->iccp_name != NULL)
{
memcpy(info_ptr->iccp_name, keyword,
keyword_length+1);
keyword_length+1);
info_ptr->iccp_proflen =
profile_length;
profile_length;
info_ptr->iccp_profile = profile;
png_ptr->read_buffer = NULL; /*steal*/
info_ptr->free_me |= PNG_FREE_ICCP;
@ -2270,7 +2270,7 @@ png_handle_pCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
}
png_set_pCAL(png_ptr, info_ptr, (png_charp)buffer, X0, X1, type, nparams,
(png_charp)units, params);
(png_charp)units, params);
png_free(png_ptr, params);
}
@ -2313,7 +2313,7 @@ png_handle_sCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
}
png_debug1(2, "Allocating and reading sCAL chunk data (%u bytes)",
length + 1);
length + 1);
buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/);
@ -2365,7 +2365,7 @@ png_handle_sCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
else
/* This is the (only) success case. */
png_set_sCAL_s(png_ptr, info_ptr, buffer[0],
(png_charp)buffer+1, (png_charp)buffer+heighti);
(png_charp)buffer+1, (png_charp)buffer+heighti);
}
}
#endif
@ -2573,7 +2573,7 @@ png_handle_zTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
* and text chunks.
*/
if (png_decompress_chunk(png_ptr, length, keyword_length+2,
&uncompressed_length, 1/*terminate*/) == Z_STREAM_END)
&uncompressed_length, 1/*terminate*/) == Z_STREAM_END)
{
png_text text;
@ -2713,7 +2713,7 @@ png_handle_iTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
* iCCP and text chunks.
*/
if (png_decompress_chunk(png_ptr, length, prefix_length,
&uncompressed_length, 1/*terminate*/) == Z_STREAM_END)
&uncompressed_length, 1/*terminate*/) == Z_STREAM_END)
buffer = png_ptr->read_buffer;
else
@ -2793,7 +2793,7 @@ png_cache_unknown_chunk(png_structrp png_ptr, png_uint_32 length)
{
/* Do a 'warn' here - it is handled below. */
png_ptr->unknown_chunk.data = png_voidcast(png_bytep,
png_malloc_warn(png_ptr, length));
png_malloc_warn(png_ptr, length));
}
}
@ -2818,7 +2818,7 @@ png_cache_unknown_chunk(png_structrp png_ptr, png_uint_32 length)
/* Handle an unknown, or known but disabled, chunk */
void /* PRIVATE */
png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
png_uint_32 length, int keep)
png_uint_32 length, int keep)
{
int handled = 0; /* the chunk was handled */
@ -2856,7 +2856,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
{
/* Callback to user unknown chunk handler */
int ret = (*(png_ptr->read_user_chunk_fn))(png_ptr,
&png_ptr->unknown_chunk);
&png_ptr->unknown_chunk);
/* ret is:
* negative: An error occurred; png_chunk_error will be called.
@ -2890,9 +2890,9 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
{
png_chunk_warning(png_ptr, "Saving unknown chunk:");
png_app_warning(png_ptr,
"forcing save of an unhandled chunk;"
" please call png_set_keep_unknown_chunks");
/* with keep = PNG_HANDLE_CHUNK_IF_SAFE */
"forcing save of an unhandled chunk;"
" please call png_set_keep_unknown_chunks");
/* with keep = PNG_HANDLE_CHUNK_IF_SAFE */
}
# endif
keep = PNG_HANDLE_CHUNK_IF_SAFE;
@ -2985,7 +2985,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
* out; store the chunk.
*/
png_set_unknown_chunks(png_ptr, info_ptr,
&png_ptr->unknown_chunk, 1);
&png_ptr->unknown_chunk, 1);
handled = 1;
# ifdef PNG_USER_LIMITS_SUPPORTED
break;
@ -3539,7 +3539,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
#ifdef PNG_READ_INTERLACING_SUPPORTED
void /* PRIVATE */
png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
png_uint_32 transformations /* Because these may affect the byte layout */)
png_uint_32 transformations /* Because these may affect the byte layout */)
{
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Offset to next interlace block */
@ -3783,7 +3783,7 @@ png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
static void
png_read_filter_row_sub(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
png_const_bytep prev_row)
{
png_size_t i;
png_size_t istop = row_info->rowbytes;
@ -3801,7 +3801,7 @@ png_read_filter_row_sub(png_row_infop row_info, png_bytep row,
static void
png_read_filter_row_up(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
png_const_bytep prev_row)
{
png_size_t i;
png_size_t istop = row_info->rowbytes;
@ -3817,7 +3817,7 @@ png_read_filter_row_up(png_row_infop row_info, png_bytep row,
static void
png_read_filter_row_avg(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
png_const_bytep prev_row)
{
png_size_t i;
png_bytep rp = row;
@ -3844,7 +3844,7 @@ png_read_filter_row_avg(png_row_infop row_info, png_bytep row,
static void
png_read_filter_row_paeth_1byte_pixel(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
png_const_bytep prev_row)
{
png_bytep rp_end = row + row_info->rowbytes;
int a, c;
@ -3892,7 +3892,7 @@ png_read_filter_row_paeth_1byte_pixel(png_row_infop row_info, png_bytep row,
static void
png_read_filter_row_paeth_multibyte_pixel(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
png_const_bytep prev_row)
{
int bpp = (row_info->pixel_depth + 7) >> 3;
png_bytep rp_end = row + bpp;
@ -3977,7 +3977,7 @@ png_init_filter_functions(png_structrp pp)
void /* PRIVATE */
png_read_filter_row(png_structrp pp, png_row_infop row_info, png_bytep row,
png_const_bytep prev_row, int filter)
png_const_bytep prev_row, int filter)
{
/* OPTIMIZATION: DO NOT MODIFY THIS FUNCTION, instead #define
* PNG_FILTER_OPTIMIZATIONS to a function that overrides the generic
@ -3995,7 +3995,7 @@ png_read_filter_row(png_structrp pp, png_row_infop row_info, png_bytep row,
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
void /* PRIVATE */
png_read_IDAT_data(png_structrp png_ptr, png_bytep output,
png_alloc_size_t avail_out)
png_alloc_size_t avail_out)
{
/* Loop reading IDATs and decompressing the result into output[avail_out] */
png_ptr->zstream.next_out = output;

92
pngset.c
View File

@ -104,14 +104,14 @@ png_set_cHRM(png_const_structrp png_ptr, png_inforp info_ptr,
double green_x, double green_y, double blue_x, double blue_y)
{
png_set_cHRM_fixed(png_ptr, info_ptr,
png_fixed(png_ptr, white_x, "cHRM White X"),
png_fixed(png_ptr, white_y, "cHRM White Y"),
png_fixed(png_ptr, red_x, "cHRM Red X"),
png_fixed(png_ptr, red_y, "cHRM Red Y"),
png_fixed(png_ptr, green_x, "cHRM Green X"),
png_fixed(png_ptr, green_y, "cHRM Green Y"),
png_fixed(png_ptr, blue_x, "cHRM Blue X"),
png_fixed(png_ptr, blue_y, "cHRM Blue Y"));
png_fixed(png_ptr, white_x, "cHRM White X"),
png_fixed(png_ptr, white_y, "cHRM White Y"),
png_fixed(png_ptr, red_x, "cHRM Red X"),
png_fixed(png_ptr, red_y, "cHRM Red Y"),
png_fixed(png_ptr, green_x, "cHRM Green X"),
png_fixed(png_ptr, green_y, "cHRM Green Y"),
png_fixed(png_ptr, blue_x, "cHRM Blue X"),
png_fixed(png_ptr, blue_y, "cHRM Blue Y"));
}
void PNGAPI
@ -120,15 +120,15 @@ png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X,
double blue_X, double blue_Y, double blue_Z)
{
png_set_cHRM_XYZ_fixed(png_ptr, info_ptr,
png_fixed(png_ptr, red_X, "cHRM Red X"),
png_fixed(png_ptr, red_Y, "cHRM Red Y"),
png_fixed(png_ptr, red_Z, "cHRM Red Z"),
png_fixed(png_ptr, green_X, "cHRM Green X"),
png_fixed(png_ptr, green_Y, "cHRM Green Y"),
png_fixed(png_ptr, green_Z, "cHRM Green Z"),
png_fixed(png_ptr, blue_X, "cHRM Blue X"),
png_fixed(png_ptr, blue_Y, "cHRM Blue Y"),
png_fixed(png_ptr, blue_Z, "cHRM Blue Z"));
png_fixed(png_ptr, red_X, "cHRM Red X"),
png_fixed(png_ptr, red_Y, "cHRM Red Y"),
png_fixed(png_ptr, red_Z, "cHRM Red Z"),
png_fixed(png_ptr, green_X, "cHRM Green X"),
png_fixed(png_ptr, green_Y, "cHRM Green Y"),
png_fixed(png_ptr, green_Z, "cHRM Green Z"),
png_fixed(png_ptr, blue_X, "cHRM Blue X"),
png_fixed(png_ptr, blue_Y, "cHRM Blue Y"),
png_fixed(png_ptr, blue_Z, "cHRM Blue Z"));
}
# endif /* FLOATING_POINT */
@ -398,7 +398,7 @@ png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthw);
info_ptr->scal_s_width = png_voidcast(png_charp,
png_malloc_warn(png_ptr, lengthw));
png_malloc_warn(png_ptr, lengthw));
if (info_ptr->scal_s_width == NULL)
{
@ -414,7 +414,7 @@ png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthh);
info_ptr->scal_s_height = png_voidcast(png_charp,
png_malloc_warn(png_ptr, lengthh));
png_malloc_warn(png_ptr, lengthh));
if (info_ptr->scal_s_height == NULL)
{
@ -453,9 +453,9 @@ png_set_sCAL(png_const_structrp png_ptr, png_inforp info_ptr, int unit,
char sheight[PNG_sCAL_MAX_DIGITS+1];
png_ascii_from_fp(png_ptr, swidth, (sizeof swidth), width,
PNG_sCAL_PRECISION);
PNG_sCAL_PRECISION);
png_ascii_from_fp(png_ptr, sheight, (sizeof sheight), height,
PNG_sCAL_PRECISION);
PNG_sCAL_PRECISION);
png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight);
}
@ -648,7 +648,7 @@ png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
*/
{
int result = png_colorspace_set_ICC(png_ptr, &info_ptr->colorspace, name,
proflen, profile, info_ptr->color_type);
proflen, profile, info_ptr->color_type);
png_colorspace_sync_info(png_ptr, info_ptr);
@ -673,7 +673,7 @@ png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
memcpy(new_iccp_name, name, length);
new_iccp_profile = png_voidcast(png_bytep,
png_malloc_warn(png_ptr, proflen));
png_malloc_warn(png_ptr, proflen));
if (new_iccp_profile == NULL)
{
@ -748,14 +748,14 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
* the overflow checks.
*/
new_text = png_voidcast(png_textp,png_realloc_array(png_ptr,
info_ptr->text, old_num_text, max_text-old_num_text,
sizeof *new_text));
info_ptr->text, old_num_text, max_text-old_num_text,
sizeof *new_text));
}
if (new_text == NULL)
{
png_chunk_report(png_ptr, "too many text chunks",
PNG_CHUNK_WRITE_ERROR);
PNG_CHUNK_WRITE_ERROR);
return 1;
}
@ -783,7 +783,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
text_ptr[i].compression >= PNG_TEXT_COMPRESSION_LAST)
{
png_chunk_report(png_ptr, "text compression mode is out of range",
PNG_CHUNK_WRITE_ERROR);
PNG_CHUNK_WRITE_ERROR);
continue;
}
@ -815,7 +815,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
# else /* iTXt */
{
png_chunk_report(png_ptr, "iTXt chunk not supported",
PNG_CHUNK_WRITE_ERROR);
PNG_CHUNK_WRITE_ERROR);
continue;
}
# endif
@ -844,7 +844,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
if (textp->key == NULL)
{
png_chunk_report(png_ptr, "text chunk: out of memory",
PNG_CHUNK_WRITE_ERROR);
PNG_CHUNK_WRITE_ERROR);
return 1;
}
@ -956,7 +956,7 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
{
/* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */
info_ptr->trans_alpha = png_voidcast(png_bytep,
png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH));
png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH));
memcpy(info_ptr->trans_alpha, trans_alpha, (png_size_t)num_trans);
}
png_ptr->trans_alpha = info_ptr->trans_alpha;
@ -976,7 +976,7 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
trans_color->green > sample_max ||
trans_color->blue > sample_max)))
png_warning(png_ptr,
"tRNS chunk has out-of-range samples for bit_depth");
"tRNS chunk has out-of-range samples for bit_depth");
}
#endif
@ -1018,8 +1018,8 @@ png_set_sPLT(png_const_structrp png_ptr,
* overflows. Notice that the parameters are (int) and (size_t)
*/
np = png_voidcast(png_sPLT_tp,png_realloc_array(png_ptr,
info_ptr->splt_palettes, info_ptr->splt_palettes_num, nentries,
sizeof *np));
info_ptr->splt_palettes, info_ptr->splt_palettes_num, nentries,
sizeof *np));
if (np == NULL)
{
@ -1080,7 +1080,7 @@ png_set_sPLT(png_const_structrp png_ptr,
* checked it when doing the allocation.
*/
memcpy(np->entries, entries->entries,
entries->nentries * sizeof (png_sPLT_entry));
entries->nentries * sizeof (png_sPLT_entry));
/* Note that 'continue' skips the advance of the out pointer and out
* count, so an invalid entry is not added.
@ -1110,10 +1110,10 @@ check_location(png_const_structrp png_ptr, int location)
{
/* Write struct, so unknown chunks come from the app */
png_app_warning(png_ptr,
"png_set_unknown_chunks now expects a valid location");
"png_set_unknown_chunks now expects a valid location");
/* Use the old behavior */
location = (png_byte)(png_ptr->mode &
(PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT));
(PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT));
}
/* This need not be an internal error - if the app calls
@ -1136,7 +1136,7 @@ check_location(png_const_structrp png_ptr, int location)
void PNGAPI
png_set_unknown_chunks(png_const_structrp png_ptr,
png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns)
png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns)
{
png_unknown_chunkp np;
@ -1175,13 +1175,13 @@ png_set_unknown_chunks(png_const_structrp png_ptr,
* appropriate to read or write.
*/
np = png_voidcast(png_unknown_chunkp, png_realloc_array(png_ptr,
info_ptr->unknown_chunks, info_ptr->unknown_chunks_num, num_unknowns,
sizeof *np));
info_ptr->unknown_chunks, info_ptr->unknown_chunks_num, num_unknowns,
sizeof *np));
if (np == NULL)
{
png_chunk_report(png_ptr, "too many unknown chunks",
PNG_CHUNK_WRITE_ERROR);
PNG_CHUNK_WRITE_ERROR);
return;
}
@ -1210,12 +1210,12 @@ png_set_unknown_chunks(png_const_structrp png_ptr,
else
{
np->data = png_voidcast(png_bytep,
png_malloc_base(png_ptr, unknowns->size));
png_malloc_base(png_ptr, unknowns->size));
if (np->data == NULL)
{
png_chunk_report(png_ptr, "unknown chunk: out of memory",
PNG_CHUNK_WRITE_ERROR);
PNG_CHUNK_WRITE_ERROR);
/* But just skip storing the unknown chunk */
continue;
}
@ -1422,7 +1422,7 @@ png_set_keep_unknown_chunks(png_structrp png_ptr, int keep,
for (i=0; i<num_chunks; ++i)
{
old_num_chunks = add_one_chunk(new_list, old_num_chunks,
chunk_list+5*i, keep);
chunk_list+5*i, keep);
}
/* Now remove any spurious 'default' entries. */
@ -1522,7 +1522,7 @@ png_set_compression_buffer_size(png_structrp png_ptr, png_size_t size)
if (png_ptr->zowner != 0)
{
png_warning(png_ptr,
"Compression buffer size cannot be changed because it is in use");
"Compression buffer size cannot be changed because it is in use");
return;
}
@ -1534,7 +1534,7 @@ png_set_compression_buffer_size(png_structrp png_ptr, png_size_t size)
if (size > ZLIB_IO_MAX)
{
png_warning(png_ptr,
"Compression buffer size limited to system maximum");
"Compression buffer size limited to system maximum");
size = ZLIB_IO_MAX; /* must fit */
}
#endif
@ -1545,7 +1545,7 @@ png_set_compression_buffer_size(png_structrp png_ptr, png_size_t size)
* if this is permitted.
*/
png_warning(png_ptr,
"Compression buffer size cannot be reduced below 6");
"Compression buffer size cannot be reduced below 6");
return;
}

184
pngtest.c
View File

@ -354,10 +354,10 @@ count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
#ifdef PNG_IO_STATE_SUPPORTED
void
pngtest_check_io_state(png_structp png_ptr, png_size_t data_length,
png_uint_32 io_op);
png_uint_32 io_op);
void
pngtest_check_io_state(png_structp png_ptr, png_size_t data_length,
png_uint_32 io_op)
png_uint_32 io_op)
{
png_uint_32 io_state = png_get_io_state(png_ptr);
int err = 0;
@ -541,7 +541,7 @@ PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size)
memory_infop pinfo;
png_set_mem_fn(png_ptr, NULL, NULL, NULL);
pinfo = (memory_infop)png_malloc(png_ptr,
(sizeof *pinfo));
(sizeof *pinfo));
pinfo->size = size;
current_allocation += size;
total_allocation += size;
@ -571,7 +571,7 @@ PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size)
if (verbose != 0)
printf("png_malloc %lu bytes at %p\n", (unsigned long)size,
pinfo->pointer);
pinfo->pointer);
return (png_voidp)(pinfo->pointer);
}
@ -778,9 +778,9 @@ write_vpAg_chunk(png_structp write_ptr)
if (verbose != 0)
fprintf(STDERR, " vpAg = %lu x %lu, units = %d\n",
(unsigned long)user_chunk_data.vpAg_width,
(unsigned long)user_chunk_data.vpAg_height,
user_chunk_data.vpAg_units);
(unsigned long)user_chunk_data.vpAg_width,
(unsigned long)user_chunk_data.vpAg_height,
user_chunk_data.vpAg_units);
png_save_uint_32(vpag_chunk_data, user_chunk_data.vpAg_width);
png_save_uint_32(vpag_chunk_data + 4, user_chunk_data.vpAg_height);
@ -821,7 +821,7 @@ write_chunks(png_structp write_ptr, int location)
#ifdef PNG_TEXT_SUPPORTED
static void
pngtest_check_text_support(png_structp png_ptr, png_textp text_ptr,
int num_text)
int num_text)
{
while (num_text > 0)
{
@ -903,26 +903,26 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
pngtest_debug("Allocating read and write structures");
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
read_ptr =
png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL,
NULL, NULL, NULL, png_debug_malloc, png_debug_free);
png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL,
NULL, NULL, NULL, png_debug_malloc, png_debug_free);
#else
read_ptr =
png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
#endif
png_set_error_fn(read_ptr, &error_parameters, pngtest_error,
pngtest_warning);
pngtest_warning);
#ifdef PNG_WRITE_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
write_ptr =
png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL,
NULL, NULL, NULL, png_debug_malloc, png_debug_free);
png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL,
NULL, NULL, NULL, png_debug_malloc, png_debug_free);
#else
write_ptr =
png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
#endif
png_set_error_fn(write_ptr, &error_parameters, pngtest_error,
pngtest_warning);
pngtest_warning);
#endif
pngtest_debug("Allocating read_info, write_info and end_info structures");
read_info_ptr = png_create_info_struct(read_ptr);
@ -1010,9 +1010,9 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
# ifdef PNG_WRITE_SUPPORTED
png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data,
# ifdef PNG_WRITE_FLUSH_SUPPORTED
pngtest_flush);
pngtest_flush);
# else
NULL);
NULL);
# endif
# endif
#endif
@ -1052,11 +1052,11 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
*/
#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS,
NULL, 0);
NULL, 0);
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS,
NULL, 0);
NULL, 0);
#endif
#endif
@ -1080,7 +1080,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
&color_type, &interlace_type, &compression_type, &filter_type) != 0)
{
png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth,
color_type, interlace_type, compression_type, filter_type);
color_type, interlace_type, compression_type, filter_type);
/* num_passes may not be available below if interlace support is not
* provided by libpng for both read and write.
*/
@ -1107,13 +1107,13 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
#ifdef PNG_cHRM_SUPPORTED
{
png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
blue_y;
blue_y;
if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y,
&red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y) != 0)
&red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y) != 0)
{
png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x,
red_y, green_x, green_y, blue_x, blue_y);
red_y, green_x, green_y, blue_x, blue_y);
}
}
#endif
@ -1130,13 +1130,13 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
#ifdef PNG_cHRM_SUPPORTED
{
double white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
blue_y;
blue_y;
if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,
&red_y, &green_x, &green_y, &blue_x, &blue_y) != 0)
&red_y, &green_x, &green_y, &blue_x, &blue_y) != 0)
{
png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x,
red_y, green_x, green_y, blue_x, blue_y);
red_y, green_x, green_y, blue_x, blue_y);
}
}
#endif
@ -1158,10 +1158,10 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
int compression_type;
if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type,
&profile, &proflen) != 0)
&profile, &proflen) != 0)
{
png_set_iCCP(write_ptr, write_info_ptr, name, compression_type,
profile, proflen);
profile, proflen);
}
}
#endif
@ -1218,10 +1218,10 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
int type, nparams;
if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type,
&nparams, &units, &params) != 0)
&nparams, &units, &params) != 0)
{
png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type,
nparams, units, params);
nparams, units, params);
}
}
#endif
@ -1251,7 +1251,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
double scal_width, scal_height;
if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width,
&scal_height) != 0)
&scal_height) != 0)
{
png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);
}
@ -1263,7 +1263,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
png_charp scal_width, scal_height;
if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,
&scal_height) != 0)
&scal_height) != 0)
{
png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width,
scal_height);
@ -1304,7 +1304,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
for (i=0; i<num_text; i++)
{
printf(" Text compression[%d]=%d\n",
i, text_ptr[i].compression);
i, text_ptr[i].compression);
}
}
@ -1341,7 +1341,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
png_color_16p trans_color;
if (png_get_tRNS(read_ptr, read_info_ptr, &trans_alpha, &num_trans,
&trans_color) != 0)
&trans_color) != 0)
{
int sample_max = (1 << bit_depth);
/* libpng doesn't reject a tRNS chunk with out-of-range samples */
@ -1360,12 +1360,12 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
{
png_unknown_chunkp unknowns;
int num_unknowns = png_get_unknown_chunks(read_ptr, read_info_ptr,
&unknowns);
&unknowns);
if (num_unknowns != 0)
{
png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns,
num_unknowns);
num_unknowns);
#if PNG_LIBPNG_VER < 10600
/* Copy the locations from the read_info_ptr. The automatically
* generated locations in write_end_info_ptr are wrong prior to 1.6.0
@ -1375,7 +1375,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
int i;
for (i = 0; i < num_unknowns; i++)
png_set_unknown_chunk_location(write_ptr, write_info_ptr, i,
unknowns[i].location);
unknowns[i].location);
}
#endif
}
@ -1400,7 +1400,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
#ifdef SINGLE_ROWBUF_ALLOC
pngtest_debug("Allocating row buffer...");
row_buf = (png_bytep)png_malloc(read_ptr,
png_get_rowbytes(read_ptr, read_info_ptr));
png_get_rowbytes(read_ptr, read_info_ptr));
pngtest_debug1("\t0x%08lx", (unsigned long)row_buf);
#endif /* SINGLE_ROWBUF_ALLOC */
@ -1414,10 +1414,10 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
*/
if (png_set_interlace_handling(read_ptr) != num_passes)
png_error(write_ptr,
"png_set_interlace_handling(read): wrong pass count ");
"png_set_interlace_handling(read): wrong pass count ");
if (png_set_interlace_handling(write_ptr) != num_passes)
png_error(write_ptr,
"png_set_interlace_handling(write): wrong pass count ");
"png_set_interlace_handling(write): wrong pass count ");
#else /* png_set_interlace_handling not called on either read or write */
# define calc_pass_height
#endif /* not using libpng interlace handling */
@ -1454,10 +1454,10 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y);
row_buf = (png_bytep)png_malloc(read_ptr,
png_get_rowbytes(read_ptr, read_info_ptr));
png_get_rowbytes(read_ptr, read_info_ptr));
pngtest_debug2("\t0x%08lx (%lu bytes)", (unsigned long)row_buf,
(unsigned long)png_get_rowbytes(read_ptr, read_info_ptr));
(unsigned long)png_get_rowbytes(read_ptr, read_info_ptr));
#endif /* !SINGLE_ROWBUF_ALLOC */
png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1);
@ -1515,7 +1515,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
for (i=0; i<num_text; i++)
{
printf(" Text compression[%d]=%d\n",
i, text_ptr[i].compression);
i, text_ptr[i].compression);
}
}
@ -1549,12 +1549,12 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
{
png_unknown_chunkp unknowns;
int num_unknowns = png_get_unknown_chunks(read_ptr, end_info_ptr,
&unknowns);
&unknowns);
if (num_unknowns != 0)
{
png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns,
num_unknowns);
num_unknowns);
#if PNG_LIBPNG_VER < 10600
/* Copy the locations from the read_info_ptr. The automatically
* generated locations in write_end_info_ptr are wrong prior to 1.6.0
@ -1564,7 +1564,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
int i;
for (i = 0; i < num_unknowns; i++)
png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i,
unknowns[i].location);
unknowns[i].location);
}
#endif
}
@ -1598,7 +1598,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
iwidth = png_get_image_width(write_ptr, write_info_ptr);
iheight = png_get_image_height(write_ptr, write_info_ptr);
fprintf(STDERR, "\n Image width = %lu, height = %lu\n",
(unsigned long)iwidth, (unsigned long)iheight);
(unsigned long)iwidth, (unsigned long)iheight);
}
#endif
@ -1631,7 +1631,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
* above, but this is safe.
*/
fprintf(STDERR, "\n %s: %d libpng errors found (%d warnings)",
inname, error_count, warning_count);
inname, error_count, warning_count);
if (strict != 0)
return (1);
@ -1642,14 +1642,14 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
else if (unsupported_chunks > 0)
{
fprintf(STDERR, "\n %s: unsupported chunks (%d)%s",
inname, unsupported_chunks, strict ? ": IGNORED --strict!" : "");
inname, unsupported_chunks, strict ? ": IGNORED --strict!" : "");
}
# endif
else if (warning_count > 0)
{
fprintf(STDERR, "\n %s: %d libpng warnings found",
inname, warning_count);
inname, warning_count);
if (strict != 0)
return (1);
@ -1685,18 +1685,19 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
if (num_in != num_out)
{
fprintf(STDERR, "\nFiles %s and %s are of a different size\n",
inname, outname);
inname, outname);
if (wrote_question == 0 && unsupported_chunks == 0)
{
fprintf(STDERR,
" Was %s written with the same maximum IDAT chunk size (%d bytes),",
inname, PNG_ZBUF_SIZE);
" Was %s written with the same maximum IDAT"
" chunk size (%d bytes),",
inname, PNG_ZBUF_SIZE);
fprintf(STDERR,
"\n filtering heuristic (libpng default), compression");
"\n filtering heuristic (libpng default), compression");
fprintf(STDERR,
" level (zlib default),\n and zlib version (%s)?\n\n",
ZLIB_VERSION);
" level (zlib default),\n and zlib version (%s)?\n\n",
ZLIB_VERSION);
wrote_question = 1;
}
@ -1716,17 +1717,18 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
if (memcmp(inbuf, outbuf, num_in))
{
fprintf(STDERR, "\nFiles %s and %s are different\n", inname,
outname);
outname);
if (wrote_question == 0 && unsupported_chunks == 0)
{
fprintf(STDERR,
" Was %s written with the same maximum IDAT chunk size (%d bytes),",
" Was %s written with the same maximum"
" IDAT chunk size (%d bytes),",
inname, PNG_ZBUF_SIZE);
fprintf(STDERR,
"\n filtering heuristic (libpng default), compression");
"\n filtering heuristic (libpng default), compression");
fprintf(STDERR,
" level (zlib default),\n and zlib version (%s)?\n\n",
" level (zlib default),\n and zlib version (%s)?\n\n",
ZLIB_VERSION);
wrote_question = 1;
}
@ -1777,12 +1779,12 @@ main(int argc, char *argv[])
fprintf(STDERR, "%s", png_get_copyright(NULL));
/* Show the version of libpng used in building the library */
fprintf(STDERR, " library (%lu):%s",
(unsigned long)png_access_version_number(),
png_get_header_version(NULL));
(unsigned long)png_access_version_number(),
png_get_header_version(NULL));
/* Show the version of libpng used in building the application */
fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
PNG_HEADER_VERSION_STRING);
PNG_HEADER_VERSION_STRING);
/* Do some consistency checking on the memory allocation settings, I'm
* not sure this matters, but it is nice to know, the first of these
@ -1800,7 +1802,7 @@ main(int argc, char *argv[])
if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING))
{
fprintf(STDERR,
"Warning: versions are different between png.h and png.c\n");
"Warning: versions are different between png.h and png.c\n");
fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING);
fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver);
++ierror;
@ -1888,7 +1890,7 @@ main(int argc, char *argv[])
{
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
fprintf(STDERR, "\n PASS (%lu zero samples)\n",
(unsigned long)zero_samples);
(unsigned long)zero_samples);
#else
fprintf(STDERR, " PASS\n");
#endif
@ -1908,20 +1910,20 @@ main(int argc, char *argv[])
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
if (allocation_now != current_allocation)
fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
current_allocation - allocation_now);
current_allocation - allocation_now);
if (current_allocation != 0)
{
memory_infop pinfo = pinformation;
fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
current_allocation);
current_allocation);
while (pinfo != NULL)
{
fprintf(STDERR, " %lu bytes at %p\n",
(unsigned long)pinfo->size,
pinfo->pointer);
(unsigned long)pinfo->size,
pinfo->pointer);
pinfo = pinfo->next;
}
}
@ -1929,13 +1931,13 @@ main(int argc, char *argv[])
}
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
fprintf(STDERR, " Current memory allocation: %10d bytes\n",
current_allocation);
current_allocation);
fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
maximum_allocation);
maximum_allocation);
fprintf(STDERR, " Total memory allocation: %10d bytes\n",
total_allocation);
total_allocation);
fprintf(STDERR, " Number of allocations: %10d\n",
num_allocations);
num_allocations);
#endif
}
@ -1970,7 +1972,7 @@ main(int argc, char *argv[])
{
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
fprintf(STDERR, "\n PASS (%lu zero samples)\n",
(unsigned long)zero_samples);
(unsigned long)zero_samples);
#else
fprintf(STDERR, " PASS\n");
#endif
@ -1997,19 +1999,19 @@ main(int argc, char *argv[])
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
if (allocation_now != current_allocation)
fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
current_allocation - allocation_now);
current_allocation - allocation_now);
if (current_allocation != 0)
{
memory_infop pinfo = pinformation;
fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
current_allocation);
current_allocation);
while (pinfo != NULL)
{
fprintf(STDERR, " %lu bytes at %p\n",
(unsigned long)pinfo->size, pinfo->pointer);
(unsigned long)pinfo->size, pinfo->pointer);
pinfo = pinfo->next;
}
}
@ -2017,13 +2019,13 @@ main(int argc, char *argv[])
}
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
fprintf(STDERR, " Current memory allocation: %10d bytes\n",
current_allocation);
current_allocation);
fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
maximum_allocation);
maximum_allocation);
fprintf(STDERR, " Total memory allocation: %10d bytes\n",
total_allocation);
total_allocation);
fprintf(STDERR, " Number of allocations: %10d\n",
num_allocations);
num_allocations);
#endif
}
@ -2032,13 +2034,13 @@ main(int argc, char *argv[])
t_misc += (t_stop - t_start);
t_start = t_stop;
fprintf(STDERR, " CPU time used = %.3f seconds",
(t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC);
(t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC);
fprintf(STDERR, " (decoding %.3f,\n",
t_decode/(float)CLOCKS_PER_SEC);
t_decode/(float)CLOCKS_PER_SEC);
fprintf(STDERR, " encoding %.3f ,",
t_encode/(float)CLOCKS_PER_SEC);
t_encode/(float)CLOCKS_PER_SEC);
fprintf(STDERR, " other %.3f seconds)\n\n",
t_misc/(float)CLOCKS_PER_SEC);
t_misc/(float)CLOCKS_PER_SEC);
#endif
if (ierror == 0)
@ -2050,19 +2052,19 @@ main(int argc, char *argv[])
dummy_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
fprintf(STDERR, " Default limits:\n");
fprintf(STDERR, " width_max = %lu\n",
(unsigned long) png_get_user_width_max(dummy_ptr));
(unsigned long) png_get_user_width_max(dummy_ptr));
fprintf(STDERR, " height_max = %lu\n",
(unsigned long) png_get_user_height_max(dummy_ptr));
(unsigned long) png_get_user_height_max(dummy_ptr));
if (png_get_chunk_cache_max(dummy_ptr) == 0)
fprintf(STDERR, " cache_max = unlimited\n");
else
fprintf(STDERR, " cache_max = %lu\n",
(unsigned long) png_get_chunk_cache_max(dummy_ptr));
(unsigned long) png_get_chunk_cache_max(dummy_ptr));
if (png_get_chunk_malloc_max(dummy_ptr) == 0)
fprintf(STDERR, " malloc_max = unlimited\n");
else
fprintf(STDERR, " malloc_max = %lu\n",
(unsigned long) png_get_chunk_malloc_max(dummy_ptr));
(unsigned long) png_get_chunk_malloc_max(dummy_ptr));
png_destroy_read_struct(&dummy_ptr, NULL, NULL);
return (int)(ierror != 0);
@ -2072,7 +2074,7 @@ int
main(void)
{
fprintf(STDERR,
" test ignored because libpng was not built with read support\n");
" test ignored because libpng was not built with read support\n");
/* And skip this test */
return SKIP;
}

11
pngtrans.c
View File

@ -1,8 +1,8 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* Last changed in libpng 1.6.18 [July 23, 2015]
* Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* Last changed in libpng 1.6.24 [(PENDING RELEASE)]
* 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.)
*
@ -172,13 +172,14 @@ png_set_filler(png_structrp png_ptr, png_uint_32 filler, int filler_loc)
* size!
*/
png_app_error(png_ptr,
"png_set_filler is invalid for low bit depth gray output");
"png_set_filler is invalid for"
" low bit depth gray output");
return;
}
default:
png_app_error(png_ptr,
"png_set_filler: inappropriate color type");
"png_set_filler: inappropriate color type");
return;
}
# else
@ -797,7 +798,7 @@ png_set_user_transform_info(png_structrp png_ptr, png_voidp
(png_ptr->flags & PNG_FLAG_ROW_INIT) != 0)
{
png_app_error(png_ptr,
"info change after png_start_read_image or png_read_update_info");
"info change after png_start_read_image or png_read_update_info");
return;
}
#endif

6
pngwio.c
View File

@ -1,8 +1,8 @@
/* pngwio.c - functions for data output
*
* Last changed in libpng 1.6.15 [November 20, 2014]
* Copyright (c) 1998-2002,2004,2006-2014 Glenn Randers-Pehrson
* Last changed in libpng 1.6.24 [(PENDING RELEASE)]
* Copyright (c) 1998-2002,2004,2006-2014,2016 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.)
*
@ -35,7 +35,7 @@ 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);
length);
else
png_error(png_ptr, "Call to NULL write function");

96
pngwrite.c
View File

@ -1,8 +1,8 @@
/* pngwrite.c - general routines to write a PNG file
*
* Last changed in libpng 1.6.19 [November 12, 2015]
* Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* Last changed in libpng 1.6.24 [(PENDING RELEASE)]
* 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.)
*
@ -22,7 +22,7 @@
/* Write out all the unknown chunks for the current given location */
static void
write_unknown_chunks(png_structrp png_ptr, png_const_inforp info_ptr,
unsigned int where)
unsigned int where)
{
if (info_ptr->unknown_chunks_num != 0)
{
@ -148,11 +148,11 @@ png_write_info_before_PLTE(png_structrp png_ptr, png_const_inforp info_ptr)
# ifdef PNG_WRITE_sRGB_SUPPORTED
if ((info_ptr->valid & PNG_INFO_sRGB) != 0)
png_app_warning(png_ptr,
"profile matches sRGB but writing iCCP instead");
"profile matches sRGB but writing iCCP instead");
# endif
png_write_iCCP(png_ptr, info_ptr->iccp_name,
info_ptr->iccp_profile);
info_ptr->iccp_profile);
}
# ifdef PNG_WRITE_sRGB_SUPPORTED
else
@ -383,7 +383,7 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr)
for (i = 0; i < info_ptr->num_text; i++)
{
png_debug2(2, "Writing trailer text chunk %d, type %d", i,
info_ptr->text[i].compression);
info_ptr->text[i].compression);
/* An internationalized chunk? */
if (info_ptr->text[i].compression > 0)
{
@ -693,7 +693,7 @@ png_write_row(png_structrp png_ptr, png_const_bytep row)
return;
png_debug2(1, "in png_write_row (row %u, pass %d)",
png_ptr->row_number, png_ptr->pass);
png_ptr->row_number, png_ptr->pass);
/* Initialize transformations and other stuff if first time */
if (png_ptr->row_number == 0 && png_ptr->pass == 0)
@ -1069,7 +1069,7 @@ png_set_filter(png_structrp png_ptr, int method, int filters)
* is not available so the filter can't be used. Just warn here.
*/
png_app_warning(png_ptr,
"png_set_filter: UP/AVG/PAETH cannot be added after start");
"png_set_filter: UP/AVG/PAETH cannot be added after start");
filters &= ~(PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH);
}
@ -1095,13 +1095,13 @@ png_set_filter(png_structrp png_ptr, int method, int filters)
if (png_ptr->try_row == NULL)
png_ptr->try_row = png_voidcast(png_bytep,
png_malloc(png_ptr, buf_size));
png_malloc(png_ptr, buf_size));
if (num_filters > 1)
{
if (png_ptr->tst_row == NULL)
png_ptr->tst_row = png_voidcast(png_bytep,
png_malloc(png_ptr, buf_size));
png_malloc(png_ptr, buf_size));
}
}
png_ptr->do_filter = (png_byte)filters;
@ -1628,7 +1628,7 @@ png_write_image_16bit(png_voidp argument)
static png_byte
png_unpremultiply(png_uint_32 component, png_uint_32 alpha,
png_uint_32 reciprocal/*from the above macro*/)
png_uint_32 reciprocal/*from the above macro*/)
{
/* The following gives 1.0 for an alpha of 0, which is fine, otherwise if 0/0
* is represented as some other value there is more likely to be a
@ -1848,16 +1848,16 @@ png_image_set_PLTE(png_image_write_control *display)
if (channels >= 3) /* RGB */
{
palette[i].blue = png_unpremultiply(entry[afirst + (2 ^ bgr)],
alpha, reciprocal);
alpha, reciprocal);
palette[i].green = png_unpremultiply(entry[afirst + 1], alpha,
reciprocal);
reciprocal);
palette[i].red = png_unpremultiply(entry[afirst + bgr], alpha,
reciprocal);
reciprocal);
}
else /* gray */
palette[i].blue = palette[i].red = palette[i].green =
png_unpremultiply(entry[afirst], alpha, reciprocal);
png_unpremultiply(entry[afirst], alpha, reciprocal);
}
}
@ -1904,11 +1904,11 @@ png_image_set_PLTE(png_image_write_control *display)
# endif
png_set_PLTE(image->opaque->png_ptr, image->opaque->info_ptr, palette,
entries);
entries);
if (num_trans > 0)
png_set_tRNS(image->opaque->png_ptr, image->opaque->info_ptr, tRNS,
num_trans, NULL);
num_trans, NULL);
image->colormap_entries = entries;
}
@ -1917,7 +1917,7 @@ static int
png_image_write_main(png_voidp argument)
{
png_image_write_control *display = png_voidcast(png_image_write_control*,
argument);
argument);
png_imagep image = display->image;
png_structrp png_ptr = image->opaque->png_ptr;
png_inforp info_ptr = image->opaque->info_ptr;
@ -1980,24 +1980,24 @@ png_image_write_main(png_voidp argument)
png_uint_32 entries = image->colormap_entries;
png_set_IHDR(png_ptr, info_ptr, image->width, image->height,
entries > 16 ? 8 : (entries > 4 ? 4 : (entries > 2 ? 2 : 1)),
PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
entries > 16 ? 8 : (entries > 4 ? 4 : (entries > 2 ? 2 : 1)),
PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_image_set_PLTE(display);
}
else
png_error(image->opaque->png_ptr,
"no color-map for color-mapped image");
"no color-map for color-mapped image");
}
else
png_set_IHDR(png_ptr, info_ptr, image->width, image->height,
write_16bit ? 16 : 8,
((format & PNG_FORMAT_FLAG_COLOR) ? PNG_COLOR_MASK_COLOR : 0) +
((format & PNG_FORMAT_FLAG_ALPHA) ? PNG_COLOR_MASK_ALPHA : 0),
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
write_16bit ? 16 : 8,
((format & PNG_FORMAT_FLAG_COLOR) ? PNG_COLOR_MASK_COLOR : 0) +
((format & PNG_FORMAT_FLAG_ALPHA) ? PNG_COLOR_MASK_ALPHA : 0),
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
/* Counter-intuitively the data transformations must be called *after*
* png_write_info, not before as in the read code, but the 'set' functions
@ -2012,11 +2012,11 @@ png_image_write_main(png_voidp argument)
if ((image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB) == 0)
png_set_cHRM_fixed(png_ptr, info_ptr,
/* color x y */
/* white */ 31270, 32900,
/* red */ 64000, 33000,
/* green */ 30000, 60000,
/* blue */ 15000, 6000
/* color x y */
/* white */ 31270, 32900,
/* red */ 64000, 33000,
/* green */ 30000, 60000,
/* blue */ 15000, 6000
);
}
@ -2110,7 +2110,7 @@ png_image_write_main(png_voidp argument)
(colormap == 0 && display->convert_to_8bit != 0))
{
png_bytep row = png_voidcast(png_bytep, png_malloc(png_ptr,
png_get_rowbytes(png_ptr, info_ptr)));
png_get_rowbytes(png_ptr, info_ptr)));
int result;
display->local_row = row;
@ -2150,10 +2150,10 @@ png_image_write_main(png_voidp argument)
static void (PNGCBAPI
image_memory_write)(png_structp png_ptr, png_bytep/*const*/ data,
png_size_t size)
png_size_t size)
{
png_image_write_control *display = png_voidcast(png_image_write_control*,
png_ptr->io_ptr/*backdoor: png_get_io_ptr(png_ptr)*/);
png_ptr->io_ptr/*backdoor: png_get_io_ptr(png_ptr)*/);
const png_alloc_size_t ob = display->output_bytes;
/* Check for overflow; this should never happen: */
@ -2184,22 +2184,22 @@ static int
png_image_write_memory(png_voidp argument)
{
png_image_write_control *display = png_voidcast(png_image_write_control*,
argument);
argument);
/* The rest of the memory-specific init and write_main in an error protected
* environment. This case needs to use callbacks for the write operations
* since libpng has no built in support for writing to memory.
*/
png_set_write_fn(display->image->opaque->png_ptr, display/*io_ptr*/,
image_memory_write, image_memory_flush);
image_memory_write, image_memory_flush);
return png_image_write_main(display);
}
int PNGAPI
png_image_write_to_memory(png_imagep image, void *memory,
png_alloc_size_t * PNG_RESTRICT memory_bytes, int convert_to_8bit,
const void *buffer, png_int_32 row_stride, const void *colormap)
png_alloc_size_t * PNG_RESTRICT memory_bytes, int convert_to_8bit,
const void *buffer, png_int_32 row_stride, const void *colormap)
{
/* Write the image to the given buffer, or count the bytes if it is NULL */
if (image != NULL && image->version == PNG_IMAGE_VERSION)
@ -2251,12 +2251,12 @@ png_image_write_to_memory(png_imagep image, void *memory,
else
return png_image_error(image,
"png_image_write_to_memory: invalid argument");
"png_image_write_to_memory: invalid argument");
}
else if (image != NULL)
return png_image_error(image,
"png_image_write_to_memory: incorrect PNG_IMAGE_VERSION");
"png_image_write_to_memory: incorrect PNG_IMAGE_VERSION");
else
return 0;
@ -2265,7 +2265,7 @@ png_image_write_to_memory(png_imagep image, void *memory,
#ifdef PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
int PNGAPI
png_image_write_to_stdio(png_imagep image, FILE *file, int convert_to_8bit,
const void *buffer, png_int_32 row_stride, const void *colormap)
const void *buffer, png_int_32 row_stride, const void *colormap)
{
/* Write the image to the given (FILE*). */
if (image != NULL && image->version == PNG_IMAGE_VERSION)
@ -2301,12 +2301,12 @@ png_image_write_to_stdio(png_imagep image, FILE *file, int convert_to_8bit,
else
return png_image_error(image,
"png_image_write_to_stdio: invalid argument");
"png_image_write_to_stdio: invalid argument");
}
else if (image != NULL)
return png_image_error(image,
"png_image_write_to_stdio: incorrect PNG_IMAGE_VERSION");
"png_image_write_to_stdio: incorrect PNG_IMAGE_VERSION");
else
return 0;
@ -2314,8 +2314,8 @@ png_image_write_to_stdio(png_imagep image, FILE *file, int convert_to_8bit,
int PNGAPI
png_image_write_to_file(png_imagep image, const char *file_name,
int convert_to_8bit, const void *buffer, png_int_32 row_stride,
const void *colormap)
int convert_to_8bit, const void *buffer, png_int_32 row_stride,
const void *colormap)
{
/* Write the image to the named file. */
if (image != NULL && image->version == PNG_IMAGE_VERSION)
@ -2327,7 +2327,7 @@ png_image_write_to_file(png_imagep image, const char *file_name,
if (fp != NULL)
{
if (png_image_write_to_stdio(image, fp, convert_to_8bit, buffer,
row_stride, colormap) != 0)
row_stride, colormap) != 0)
{
int error; /* from fflush/fclose */
@ -2368,12 +2368,12 @@ png_image_write_to_file(png_imagep image, const char *file_name,
else
return png_image_error(image,
"png_image_write_to_file: invalid argument");
"png_image_write_to_file: invalid argument");
}
else if (image != NULL)
return png_image_error(image,
"png_image_write_to_file: incorrect PNG_IMAGE_VERSION");
"png_image_write_to_file: incorrect PNG_IMAGE_VERSION");
else
return 0;

8
pngwtran.c
View File

@ -1,8 +1,8 @@
/* pngwtran.c - transforms the data in a row for PNG writers
*
* Last changed in libpng 1.6.18 [July 23, 2015]
* Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* Last changed in libpng 1.6.24 [(PENDING RELEASE)]
* 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.)
*
@ -525,7 +525,7 @@ png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
#ifdef PNG_WRITE_FILLER_SUPPORTED
if ((png_ptr->transformations & PNG_FILLER) != 0)
png_do_strip_channel(row_info, png_ptr->row_buf + 1,
!(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
!(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
#endif
#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
@ -549,7 +549,7 @@ png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
#ifdef PNG_WRITE_SHIFT_SUPPORTED
if ((png_ptr->transformations & PNG_SHIFT) != 0)
png_do_shift(row_info, png_ptr->row_buf + 1,
&(png_ptr->shift));
&(png_ptr->shift));
#endif
#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED

45
pngwutil.c
View File

@ -59,7 +59,7 @@ png_write_sig(png_structrp png_ptr)
/* Write the rest of the 8 byte signature */
png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes],
(png_size_t)(8 - png_ptr->sig_bytes));
(png_size_t)(8 - png_ptr->sig_bytes));
if (png_ptr->sig_bytes < 3)
png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE;
@ -174,7 +174,7 @@ png_write_chunk_end(png_structrp png_ptr)
*/
static void
png_write_complete_chunk(png_structrp png_ptr, png_uint_32 chunk_name,
png_const_bytep data, png_size_t length)
png_const_bytep data, png_size_t length)
{
if (png_ptr == NULL)
return;
@ -191,10 +191,10 @@ png_write_complete_chunk(png_structrp png_ptr, png_uint_32 chunk_name,
/* This is the API that calls the internal function above. */
void PNGAPI
png_write_chunk(png_structrp png_ptr, png_const_bytep chunk_string,
png_const_bytep data, png_size_t length)
png_const_bytep data, png_size_t length)
{
png_write_complete_chunk(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), data,
length);
length);
}
/* This is used below to find the size of an image to pass to png_deflate_claim,
@ -291,7 +291,7 @@ optimize_cmf(png_bytep data, png_alloc_size_t data_size)
/* Initialize the compressor for the appropriate type of compression. */
static int
png_deflate_claim(png_structrp png_ptr, png_uint_32 owner,
png_alloc_size_t data_size)
png_alloc_size_t data_size)
{
if (png_ptr->zowner != 0)
{
@ -416,7 +416,7 @@ png_deflate_claim(png_structrp png_ptr, png_uint_32 owner,
else
{
ret = deflateInit2(&png_ptr->zstream, level, method, windowBits,
memLevel, strategy);
memLevel, strategy);
if (ret == Z_OK)
png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED;
@ -477,7 +477,7 @@ typedef struct
static void
png_text_compress_init(compression_state *comp, png_const_bytep input,
png_alloc_size_t input_len)
png_alloc_size_t input_len)
{
comp->input = input;
comp->input_len = input_len;
@ -487,7 +487,7 @@ png_text_compress_init(compression_state *comp, png_const_bytep input,
/* Compress the data in the compression state input */
static int
png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name,
compression_state *comp, png_uint_32 prefix_len)
compression_state *comp, png_uint_32 prefix_len)
{
int ret;
@ -579,7 +579,7 @@ png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name,
/* Compress the data */
ret = deflate(&png_ptr->zstream,
input_len > 0 ? Z_NO_FLUSH : Z_FINISH);
input_len > 0 ? Z_NO_FLUSH : Z_FINISH);
/* Claw back input data that was not consumed (because avail_in is
* reset above every time round the loop).
@ -925,7 +925,7 @@ png_write_PLTE(png_structrp png_ptr, png_const_colorp palette,
*/
void /* PRIVATE */
png_compress_IDAT(png_structrp png_ptr, png_const_bytep input,
png_alloc_size_t input_len, int flush)
png_alloc_size_t input_len, int flush)
{
if (png_ptr->zowner != png_IDAT)
{
@ -937,7 +937,7 @@ png_compress_IDAT(png_structrp png_ptr, png_const_bytep input,
if (png_ptr->zbuffer_list == NULL)
{
png_ptr->zbuffer_list = png_voidcast(png_compression_bufferp,
png_malloc(png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr)));
png_malloc(png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr)));
png_ptr->zbuffer_list->next = NULL;
}
@ -1358,7 +1358,7 @@ png_write_tRNS(png_structrp png_ptr, png_const_bytep trans_alpha,
/* Write the chunk out as it is */
png_write_complete_chunk(png_ptr, png_tRNS, trans_alpha,
(png_size_t)num_trans);
(png_size_t)num_trans);
}
else if (color_type == PNG_COLOR_TYPE_GRAY)
@ -1389,7 +1389,7 @@ png_write_tRNS(png_structrp png_ptr, png_const_bytep trans_alpha,
#endif
{
png_app_warning(png_ptr,
"Ignoring attempt to write 16-bit tRNS chunk when bit_depth is 8");
"Ignoring attempt to write 16-bit tRNS chunk when bit_depth is 8");
return;
}
@ -1441,7 +1441,8 @@ png_write_bKGD(png_structrp png_ptr, png_const_color_16p back, int color_type)
#endif
{
png_warning(png_ptr,
"Ignoring attempt to write 16-bit bKGD chunk when bit_depth is 8");
"Ignoring attempt to write 16-bit bKGD chunk "
"when bit_depth is 8");
return;
}
@ -1571,7 +1572,7 @@ png_write_zTXt(png_structrp png_ptr, png_const_charp key, png_const_charp text,
/* Compute the compressed data; do it now for the length */
png_text_compress_init(&comp, (png_const_bytep)text,
text == NULL ? 0 : strlen(text));
text == NULL ? 0 : strlen(text));
if (png_text_compress(png_ptr, png_zTXt, &comp, key_len) != Z_OK)
png_error(png_ptr, png_ptr->zstream.msg);
@ -1941,7 +1942,7 @@ png_write_start_row(png_structrp png_ptr)
*/
if ((filters & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH)) != 0)
png_ptr->prev_row = png_voidcast(png_bytep,
png_calloc(png_ptr, buf_size));
png_calloc(png_ptr, buf_size));
#endif /* WRITE_FILTER */
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
@ -2244,7 +2245,7 @@ png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass)
*/
static void /* PRIVATE */
png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
png_size_t row_bytes);
png_size_t row_bytes);
#ifdef PNG_WRITE_FILTER_SUPPORTED
static png_size_t /* PRIVATE */
@ -2354,7 +2355,7 @@ png_setup_up_row_only(png_structrp png_ptr, const png_size_t row_bytes)
static png_size_t /* PRIVATE */
png_setup_avg_row(png_structrp png_ptr, const png_uint_32 bpp,
const png_size_t row_bytes, const png_size_t lmins)
const png_size_t row_bytes, const png_size_t lmins)
{
png_bytep rp, dp, pp, lp;
png_uint_32 i;
@ -2364,7 +2365,7 @@ png_setup_avg_row(png_structrp png_ptr, const png_uint_32 bpp,
png_ptr->try_row[0] = PNG_FILTER_VALUE_AVG;
for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
pp = png_ptr->prev_row + 1; i < bpp; i++)
pp = png_ptr->prev_row + 1; i < bpp; i++)
{
v = *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff);
@ -2394,7 +2395,7 @@ png_setup_avg_row(png_structrp png_ptr, const png_uint_32 bpp,
}
static void /* PRIVATE */
png_setup_avg_row_only(png_structrp png_ptr, const png_uint_32 bpp,
const png_size_t row_bytes)
const png_size_t row_bytes)
{
png_bytep rp, dp, pp, lp;
png_uint_32 i;
@ -2402,7 +2403,7 @@ png_setup_avg_row_only(png_structrp png_ptr, const png_uint_32 bpp,
png_ptr->try_row[0] = PNG_FILTER_VALUE_AVG;
for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
pp = png_ptr->prev_row + 1; i < bpp; i++)
pp = png_ptr->prev_row + 1; i < bpp; i++)
{
*dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff);
}
@ -2718,7 +2719,7 @@ png_write_find_filter(png_structrp png_ptr, png_row_infop row_info)
/* Do the actual writing of a previously filtered row. */
static void
png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
png_size_t full_row_length/*includes filter byte*/)
png_size_t full_row_length/*includes filter byte*/)
{
png_debug(1, "in png_write_filtered_row");