projects
/
wxWidgets.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
allocate HFONT on demand instead of doing every time a font property is modified
[wxWidgets.git]
/
src
/
png
/
pngread.c
diff --git
a/src/png/pngread.c
b/src/png/pngread.c
index 24ddeb5c7b247ce1550f747ebe6122c9c76c34e6..22240227d65ed697c126214d0d80f83d4a719e6f 100644
(file)
--- a/
src/png/pngread.c
+++ b/
src/png/pngread.c
@@
-1,9
+1,9
@@
/* pngread.c - read a PNG file
*
/* pngread.c - read a PNG file
*
- * libpng 1.2.
4 - July 8, 2002
+ * libpng 1.2.
7 - September 12, 2004
* For conditions of distribution and use, see copyright notice in png.h
* For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-200
2
Glenn Randers-Pehrson
+ * Copyright (c) 1998-200
4
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.)
*
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@
-59,6
+59,12
@@
png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#endif
#endif /* PNG_1_0_X */
#endif
#endif /* PNG_1_0_X */
+ /* added at libpng-1.2.6 */
+#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ png_ptr->user_width_max=PNG_USER_WIDTH_MAX;
+ png_ptr->user_height_max=PNG_USER_HEIGHT_MAX;
+#endif
+
#ifdef PNG_SETJMP_SUPPORTED
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
#ifdef PNG_SETJMP_SUPPORTED
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
@@
-77,7
+83,7
@@
png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
return (NULL);
}
#ifdef USE_FAR_KEYWORD
return (NULL);
}
#ifdef USE_FAR_KEYWORD
- png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf));
+ png_memcpy(png_ptr->jmpbuf,jmpbuf,
png_
sizeof(jmp_buf));
#endif
#endif
#endif
#endif
@@
-154,7
+160,7
@@
png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
PNG_ABORT();
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
PNG_ABORT();
- png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf));
+ png_memcpy(png_ptr->jmpbuf,jmpbuf,
png_
sizeof(jmp_buf));
#else
if (setjmp(png_ptr->jmpbuf))
PNG_ABORT();
#else
if (setjmp(png_ptr->jmpbuf))
PNG_ABORT();
@@
-180,7
+186,8
@@
png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver,
{
/* We only come here via pre-1.0.12-compiled applications */
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
{
/* We only come here via pre-1.0.12-compiled applications */
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
- if(sizeof(png_struct) > png_struct_size || sizeof(png_info) > png_info_size)
+ if(png_sizeof(png_struct) > png_struct_size ||
+ png_sizeof(png_info) > png_info_size)
{
char msg[80];
png_ptr->warning_fn=NULL;
{
char msg[80];
png_ptr->warning_fn=NULL;
@@
-195,7
+202,7
@@
png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver,
png_warning(png_ptr, msg);
}
#endif
png_warning(png_ptr, msg);
}
#endif
- if(sizeof(png_struct) > png_struct_size)
+ if(
png_
sizeof(png_struct) > png_struct_size)
{
png_ptr->error_fn=NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
{
png_ptr->error_fn=NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
@@
-204,7
+211,7
@@
png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver,
png_error(png_ptr,
"The png struct allocated by the application for reading is too small.");
}
png_error(png_ptr,
"The png struct allocated by the application for reading is too small.");
}
- if(sizeof(png_info) > png_info_size)
+ if(
png_
sizeof(png_info) > png_info_size)
{
png_ptr->error_fn=NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
{
png_ptr->error_fn=NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
@@
-247,10
+254,10
@@
png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#ifdef PNG_SETJMP_SUPPORTED
/* save jump buffer and error functions */
#ifdef PNG_SETJMP_SUPPORTED
/* save jump buffer and error functions */
- png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf));
+ png_memcpy(tmp_jmp, png_ptr->jmpbuf,
png_
sizeof (jmp_buf));
#endif
#endif
- if(sizeof(png_struct) > png_struct_size)
+ if(
png_
sizeof(png_struct) > png_struct_size)
{
png_destroy_struct(png_ptr);
*ptr_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG);
{
png_destroy_struct(png_ptr);
*ptr_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG);
@@
-258,11
+265,17
@@
png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
}
/* reset all variables to 0 */
}
/* reset all variables to 0 */
- png_memset(png_ptr, 0, sizeof (png_struct));
+ png_memset(png_ptr, 0,
png_
sizeof (png_struct));
#ifdef PNG_SETJMP_SUPPORTED
/* restore jump buffer */
#ifdef PNG_SETJMP_SUPPORTED
/* restore jump buffer */
- png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf));
+ png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
+#endif
+
+ /* added at libpng-1.2.6 */
+#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ png_ptr->user_width_max=PNG_USER_WIDTH_MAX;
+ png_ptr->user_height_max=PNG_USER_HEIGHT_MAX;
#endif
/* initialize zbuf - compression buffer */
#endif
/* initialize zbuf - compression buffer */
@@
-288,6
+301,7
@@
png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
png_set_read_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL);
}
png_set_read_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL);
}
+#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Read the information before the actual image data. This has been
* changed in v0.90 to allow reading a file that already has the magic
* bytes read from the stream. You can tell libpng how many bytes have
/* Read the information before the actual image data. This has been
* changed in v0.90 to allow reading a file that already has the magic
* bytes read from the stream. You can tell libpng how many bytes have
@@
-384,7
+398,7
@@
png_read_info(png_structp png_ptr, png_infop info_ptr)
png_uint_32 length;
png_read_data(png_ptr, chunk_length, 4);
png_uint_32 length;
png_read_data(png_ptr, chunk_length, 4);
- length = png_get_uint_3
2(
chunk_length);
+ length = png_get_uint_3
1(png_ptr,
chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
@@
-392,9
+406,6
@@
png_read_info(png_structp png_ptr, png_infop info_ptr)
png_debug2(0, "Reading %s chunk, length=%lu.\n", png_ptr->chunk_name,
length);
png_debug2(0, "Reading %s chunk, length=%lu.\n", png_ptr->chunk_name,
length);
- if (length > PNG_MAX_UINT)
- png_error(png_ptr, "Invalid chunk length.");
-
/* This should be a binary subdivision search or a hash for
* matching the chunk name rather than a linear search.
*/
/* This should be a binary subdivision search or a hash for
* matching the chunk name rather than a linear search.
*/
@@
-507,6
+518,7
@@
png_read_info(png_structp png_ptr, png_infop info_ptr)
png_handle_unknown(png_ptr, info_ptr, length);
}
}
png_handle_unknown(png_ptr, info_ptr, length);
}
}
+#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
/* optional call to update the users info_ptr structure */
void PNGAPI
/* optional call to update the users info_ptr structure */
void PNGAPI
@@
-521,6
+533,7
@@
png_read_update_info(png_structp png_ptr, png_infop info_ptr)
png_read_transform_info(png_ptr, info_ptr);
}
png_read_transform_info(png_ptr, info_ptr);
}
+#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Initialize palette, background, etc, after transformations
* are set, but before any reading takes place. This allows
* the user to obtain a gamma-corrected palette, for example.
/* Initialize palette, background, etc, after transformations
* are set, but before any reading takes place. This allows
* the user to obtain a gamma-corrected palette, for example.
@@
-533,7
+546,9
@@
png_start_read_image(png_structp png_ptr)
if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
png_read_start_row(png_ptr);
}
if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
png_read_start_row(png_ptr);
}
+#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
+#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
void PNGAPI
png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
{
void PNGAPI
png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
{
@@
-673,10
+688,7
@@
png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
png_crc_finish(png_ptr, 0);
png_read_data(png_ptr, chunk_length, 4);
png_crc_finish(png_ptr, 0);
png_read_data(png_ptr, chunk_length, 4);
- png_ptr->idat_size = png_get_uint_32(chunk_length);
-
- if (png_ptr->idat_size > PNG_MAX_UINT)
- png_error(png_ptr, "Invalid chunk length.");
+ png_ptr->idat_size = png_get_uint_31(png_ptr,chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
@@
-712,8
+724,8
@@
png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
png_ptr->row_info.channels = png_ptr->channels;
png_ptr->row_info.bit_depth = png_ptr->bit_depth;
png_ptr->row_info.pixel_depth = png_ptr->pixel_depth;
png_ptr->row_info.channels = png_ptr->channels;
png_ptr->row_info.bit_depth = png_ptr->bit_depth;
png_ptr->row_info.pixel_depth = png_ptr->pixel_depth;
- png_ptr->row_info.rowbytes =
((png_ptr->row_info.width *
-
(png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3
);
+ png_ptr->row_info.rowbytes =
PNG_ROWBYTES(png_ptr->row_info.pixel_depth,
+
png_ptr->row_info.width
);
if(png_ptr->row_buf[0])
png_read_filter_row(png_ptr, &(png_ptr->row_info),
if(png_ptr->row_buf[0])
png_read_filter_row(png_ptr, &(png_ptr->row_info),
@@
-767,7
+779,9
@@
png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
if (png_ptr->read_row_fn != NULL)
(*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass);
}
if (png_ptr->read_row_fn != NULL)
(*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass);
}
+#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
+#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Read one or more rows of image data. If the image is interlaced,
* and png_set_interlace_handling() has been called, the rows need to
* contain the contents of the rows from the previous pass. If the
/* Read one or more rows of image data. If the image is interlaced,
* and png_set_interlace_handling() has been called, the rows need to
* contain the contents of the rows from the previous pass. If the
@@
-789,7
+803,7
@@
png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
* not called png_set_interlace_handling(), the display_row buffer will
* be ignored, so pass NULL to it.
*
* not called png_set_interlace_handling(), the display_row buffer will
* be ignored, so pass NULL to it.
*
- * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.
4
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.
7
*/
void PNGAPI
*/
void PNGAPI
@@
-826,7
+840,9
@@
png_read_rows(png_structp png_ptr, png_bytepp row,
dp++;
}
}
dp++;
}
}
+#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
+#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Read the entire image. If the image has an alpha channel or a tRNS
* chunk, and you have called png_handle_alpha()[*], you will need to
* initialize the image to the current image that PNG will be overlaying.
/* Read the entire image. If the image has an alpha channel or a tRNS
* chunk, and you have called png_handle_alpha()[*], you will need to
* initialize the image to the current image that PNG will be overlaying.
@@
-837,7
+853,7
@@
png_read_rows(png_structp png_ptr, png_bytepp row,
* only call this function once. If you desire to have an image for
* each pass of a interlaced image, use png_read_rows() instead.
*
* only call this function once. If you desire to have an image for
* each pass of a interlaced image, use png_read_rows() instead.
*
- * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.
4
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.
7
*/
void PNGAPI
png_read_image(png_structp png_ptr, png_bytepp image)
*/
void PNGAPI
png_read_image(png_structp png_ptr, png_bytepp image)
@@
-871,7
+887,9
@@
png_read_image(png_structp png_ptr, png_bytepp image)
}
}
}
}
}
}
+#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
+#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Read the end of the PNG file. Will not read past the end of the
* file, will verify the end is accurate, and will read any comments
* or time information at the end of the file, if info is not NULL.
/* Read the end of the PNG file. Will not read past the end of the
* file, will verify the end is accurate, and will read any comments
* or time information at the end of the file, if info is not NULL.
@@
-946,16
+964,13
@@
png_read_end(png_structp png_ptr, png_infop info_ptr)
#endif /* PNG_GLOBAL_ARRAYS */
png_read_data(png_ptr, chunk_length, 4);
#endif /* PNG_GLOBAL_ARRAYS */
png_read_data(png_ptr, chunk_length, 4);
- length = png_get_uint_3
2(
chunk_length);
+ length = png_get_uint_3
1(png_ptr,
chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name);
- if (length > PNG_MAX_UINT)
- png_error(png_ptr, "Invalid chunk length.");
-
if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
png_handle_IHDR(png_ptr, info_ptr, length);
else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
png_handle_IHDR(png_ptr, info_ptr, length);
else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
@@
-1058,6
+1073,7
@@
png_read_end(png_structp png_ptr, png_infop info_ptr)
png_handle_unknown(png_ptr, info_ptr, length);
} while (!(png_ptr->mode & PNG_HAVE_IEND));
}
png_handle_unknown(png_ptr, info_ptr, length);
} while (!(png_ptr->mode & PNG_HAVE_IEND));
}
+#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
/* free all memory used by the read */
void PNGAPI
/* free all memory used by the read */
void PNGAPI
@@
-1067,8
+1083,8
@@
png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr,
png_structp png_ptr = NULL;
png_infop info_ptr = NULL, end_info_ptr = NULL;
#ifdef PNG_USER_MEM_SUPPORTED
png_structp png_ptr = NULL;
png_infop info_ptr = NULL, end_info_ptr = NULL;
#ifdef PNG_USER_MEM_SUPPORTED
- png_free_ptr free_fn
= NULL
;
- png_voidp mem_ptr
= NULL
;
+ png_free_ptr free_fn;
+ png_voidp mem_ptr;
#endif
png_debug(1, "in png_destroy_read_struct\n");
#endif
png_debug(1, "in png_destroy_read_struct\n");
@@
-1249,7
+1265,7
@@
png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
* being used again.
*/
#ifdef PNG_SETJMP_SUPPORTED
* being used again.
*/
#ifdef PNG_SETJMP_SUPPORTED
- png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf));
+ png_memcpy(tmp_jmp, png_ptr->jmpbuf,
png_
sizeof (jmp_buf));
#endif
error_fn = png_ptr->error_fn;
#endif
error_fn = png_ptr->error_fn;
@@
-1259,7
+1275,7
@@
png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
free_fn = png_ptr->free_fn;
#endif
free_fn = png_ptr->free_fn;
#endif
- png_memset(png_ptr, 0, sizeof (png_struct));
+ png_memset(png_ptr, 0,
png_
sizeof (png_struct));
png_ptr->error_fn = error_fn;
png_ptr->warning_fn = warning_fn;
png_ptr->error_fn = error_fn;
png_ptr->warning_fn = warning_fn;
@@
-1269,7
+1285,7
@@
png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
#endif
#ifdef PNG_SETJMP_SUPPORTED
#endif
#ifdef PNG_SETJMP_SUPPORTED
- png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf));
+ png_memcpy(png_ptr->jmpbuf, tmp_jmp,
png_
sizeof (jmp_buf));
#endif
}
#endif
}
@@
-1280,6
+1296,8
@@
png_set_read_status_fn(png_structp png_ptr, png_read_status_ptr read_row_fn)
png_ptr->read_row_fn = read_row_fn;
}
png_ptr->read_row_fn = read_row_fn;
}
+
+#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
#if defined(PNG_INFO_IMAGE_SUPPORTED)
void PNGAPI
png_read_png(png_structp png_ptr, png_infop info_ptr,
#if defined(PNG_INFO_IMAGE_SUPPORTED)
void PNGAPI
png_read_png(png_structp png_ptr, png_infop info_ptr,
@@
-1289,34
+1307,38
@@
png_read_png(png_structp png_ptr, png_infop info_ptr,
int row;
#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED)
int row;
#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED)
- /* invert the alpha channel from opacity to transparency */
+ /* invert the alpha channel from opacity to transparency
+ */
if (transforms & PNG_TRANSFORM_INVERT_ALPHA)
png_set_invert_alpha(png_ptr);
#endif
if (transforms & PNG_TRANSFORM_INVERT_ALPHA)
png_set_invert_alpha(png_ptr);
#endif
- /*
The call to
png_read_info() gives us all of the information from the
+ /* png_read_info() gives us all of the information from the
* PNG file before the first IDAT (image data chunk).
*/
png_read_info(png_ptr, info_ptr);
* PNG file before the first IDAT (image data chunk).
*/
png_read_info(png_ptr, info_ptr);
+ if (info_ptr->height > PNG_UINT_32_MAX/png_sizeof(png_bytep))
+ png_error(png_ptr,"Image is too high to process with png_read_png()");
/* -------------- image transformations start here ------------------- */
#if defined(PNG_READ_16_TO_8_SUPPORTED)
/* -------------- image transformations start here ------------------- */
#if defined(PNG_READ_16_TO_8_SUPPORTED)
- /* tell libpng to strip 16 bit/color files down to 8 bits/color */
+ /* tell libpng to strip 16 bit/color files down to 8 bits per color
+ */
if (transforms & PNG_TRANSFORM_STRIP_16)
png_set_strip_16(png_ptr);
#endif
#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
if (transforms & PNG_TRANSFORM_STRIP_16)
png_set_strip_16(png_ptr);
#endif
#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
- /* Strip alpha bytes from the input data without combining with
the
- * background (not recommended).
+ /* Strip alpha bytes from the input data without combining with
+ *
the
background (not recommended).
*/
if (transforms & PNG_TRANSFORM_STRIP_ALPHA)
png_set_strip_alpha(png_ptr);
#endif
#if defined(PNG_READ_PACK_SUPPORTED) && !defined(PNG_READ_EXPAND_SUPPORTED)
*/
if (transforms & PNG_TRANSFORM_STRIP_ALPHA)
png_set_strip_alpha(png_ptr);
#endif
#if defined(PNG_READ_PACK_SUPPORTED) && !defined(PNG_READ_EXPAND_SUPPORTED)
- /* Extract multiple pixels with bit depths of 1, 2,
and
4 from a single
+ /* Extract multiple pixels with bit depths of 1, 2,
or
4 from a single
* byte into separate bytes (useful for paletted and grayscale images).
*/
if (transforms & PNG_TRANSFORM_PACKING)
* byte into separate bytes (useful for paletted and grayscale images).
*/
if (transforms & PNG_TRANSFORM_PACKING)
@@
-1325,7
+1347,8
@@
png_read_png(png_structp png_ptr, png_infop info_ptr,
#if defined(PNG_READ_PACKSWAP_SUPPORTED)
/* Change the order of packed pixels to least significant bit first
#if defined(PNG_READ_PACKSWAP_SUPPORTED)
/* Change the order of packed pixels to least significant bit first
- * (not useful if you are using png_set_packing). */
+ * (not useful if you are using png_set_packing).
+ */
if (transforms & PNG_TRANSFORM_PACKSWAP)
png_set_packswap(png_ptr);
#endif
if (transforms & PNG_TRANSFORM_PACKSWAP)
png_set_packswap(png_ptr);
#endif
@@
-1343,10
+1366,12
@@
png_read_png(png_structp png_ptr, png_infop info_ptr,
png_set_expand(png_ptr);
#endif
png_set_expand(png_ptr);
#endif
- /* We don't handle background color or gamma transformation or dithering. */
+ /* We don't handle background color or gamma transformation or dithering.
+ */
#if defined(PNG_READ_INVERT_SUPPORTED)
#if defined(PNG_READ_INVERT_SUPPORTED)
- /* invert monochrome files to have 0 as white and 1 as black */
+ /* invert monochrome files to have 0 as white and 1 as black
+ */
if (transforms & PNG_TRANSFORM_INVERT_MONO)
png_set_invert_mono(png_ptr);
#endif
if (transforms & PNG_TRANSFORM_INVERT_MONO)
png_set_invert_mono(png_ptr);
#endif
@@
-1367,19
+1392,22
@@
png_read_png(png_structp png_ptr, png_infop info_ptr,
#endif
#if defined(PNG_READ_BGR_SUPPORTED)
#endif
#if defined(PNG_READ_BGR_SUPPORTED)
- /* flip the RGB pixels to BGR (or RGBA to BGRA) */
+ /* flip the RGB pixels to BGR (or RGBA to BGRA)
+ */
if (transforms & PNG_TRANSFORM_BGR)
png_set_bgr(png_ptr);
#endif
#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED)
if (transforms & PNG_TRANSFORM_BGR)
png_set_bgr(png_ptr);
#endif
#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED)
- /* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
+ /* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR)
+ */
if (transforms & PNG_TRANSFORM_SWAP_ALPHA)
png_set_swap_alpha(png_ptr);
#endif
#if defined(PNG_READ_SWAP_SUPPORTED)
if (transforms & PNG_TRANSFORM_SWAP_ALPHA)
png_set_swap_alpha(png_ptr);
#endif
#if defined(PNG_READ_SWAP_SUPPORTED)
- /* swap bytes of 16 bit files to least significant byte first */
+ /* swap bytes of 16 bit files to least significant byte first
+ */
if (transforms & PNG_TRANSFORM_SWAP_ENDIAN)
png_set_swap(png_ptr);
#endif
if (transforms & PNG_TRANSFORM_SWAP_ENDIAN)
png_set_swap(png_ptr);
#endif
@@
-1400,7
+1428,7
@@
png_read_png(png_structp png_ptr, png_infop info_ptr,
if(info_ptr->row_pointers == NULL)
{
info_ptr->row_pointers = (png_bytepp)png_malloc(png_ptr,
if(info_ptr->row_pointers == NULL)
{
info_ptr->row_pointers = (png_bytepp)png_malloc(png_ptr,
- info_ptr->height * sizeof(png_bytep));
+ info_ptr->height *
png_
sizeof(png_bytep));
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_ROWS;
#endif
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_ROWS;
#endif
@@
-1422,3
+1450,4
@@
png_read_png(png_structp png_ptr, png_infop info_ptr,
}
#endif
}
#endif
+#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */