kc3-lang/libpng/example.c

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example.c

Branch - branch -libpng16libpng17

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Log

Author	Commit	Date	CI	Message
	7101a556	2025-04-08T08:08:20		Correct mistake in example.c
	44f97f08	2025-02-21T15:34:09		[libpng18] chore: Clean up the `FILE *` formulations in code and in documentation We should use `FILE *` instead of `FILE*` or `(FILE*)`, consistently, as we should for all other pointer types. Moreover, when we refer to standard stdio file objects in comments and in documentation, we should use the term "FILE objects" consistently. Lastly, we clarify in a comment in example.c that `PNG_STDIO_SUPPORTED` is true only when the stdio support is both available in the system and accessible in the user's libpng build. This is a cherry-pick of commit c63c5463903014c904b540216c2784023fb8c1c8 from branch 'libpng18'. Reviewed-by: John Bowler <jbowler@acm.org> Signed-off-by: Cosmin Truta <ctruta@gmail.com>
	d7d950e8	2024-10-10T14:09:02		[libpng16] chore: Clean up the leading blank lines from all source files The leading blank lines are apparently an artefact of an older source control system. They are not required and they look like accidents, because starting a source file with a blank line is not a regular habit of software developers nowadays. This is a cherry-pick of commit 37cc20add8fb5b83bb5299a26cd3b41e0f776017 from branch 'libpng18'. Signed-off-by: John Bowler <jbowler@acm.org> Signed-off-by: Cosmin Truta <ctruta@gmail.com>
	27e548af	2024-01-23T21:25:03		chore: Clean up the return statements and update example.c accordingly
	6dd99ca9	2019-08-02T18:37:04		Fix example.c
	85acd919	2018-12-01T09:36:00		[master] Imported from libpng-1.6.36.tar
	81a65de2	2018-11-25T20:27:04		Clean up config, scripts, examples, etc.
	a8738932	2018-07-28T18:47:21		Remove the "last changed" version information from source comments This information is maintained by the version control system.
	8da39742	2018-07-15T23:58:00		[master] Imported from libpng-1.6.35.tar
	46aedd89	2018-07-15T23:58:00		Release libpng version 1.6.35
	a74aa9a0	2018-06-17T22:37:44		[libpng16] Replace the remaining uses of png_size_t with size_t In v1.6.0, size_t became a required type. It should be used consistently. To maintain backwards compatibility, png_size_t is still maintained in deprecated form.
	fbff8986	2017-07-27T05:25:33		[master] Imported from libpng-1.6.31.tar
	1ed0b3f7	2017-07-25T15:32:19		[libpng16] Fixed typo in example.c (png_free_image should be png_image_free) (Bug report by John Smith)
	8c552ddf	2017-06-28T13:46:04		[master] Imported from libpng-1.6.30.tar
	2eff8ef5	2017-04-22T15:30:52		[libpng16] Imported from libpng-1.6.30beta02.tar
	0c29ab2b	2016-08-03T21:16:26		[master] Imported from libpng-1.6.24.tar
	b50d5cea	2016-08-03T21:16:26		[libpng16] Imported from libpng-1.6.24.tar
	dd70604c	2016-07-15T11:20:46		[libpng16] Fixed more indentation
	7a18a2de	2016-07-13T16:26:00		[libpng16] Undo bad indentation change in example.c
	192e92d6	2016-07-13T14:43:42		[libpng16] Fixed some indentation to comply with our coding style.
	b9c62013	2015-11-12T07:00:12		[master] Imported from libpng-1.6.19.tar
	01a0e806	2015-09-24T22:39:53		[libpng16] Reverted addition of png_set_filler_16 and png_set_add_alpha_16() functions. They unnecessarily duplicate png_set_filler() and png_set_add_alpha() which now work properly with 16-bit images.
	efe4e5d1	2015-09-23T22:08:04		[libpng16] Reverted the fix of byte order in png_do_read_filler() with 16-bit input that was made in version 1.6.17beta01, to preserve legacy behavior even though it was incorrect. Instead, added new API png_set_filter_16() and png_set_add_alpha_16() that set a flag to make png_do_read_filter() interpret the filler bytes properly.
	a8242fe6	2015-08-17T20:46:27		[libng16] Reverted recent mistaken change of 0xnnnn to 0xnnnnUL
	8b83ff37	2015-08-13T20:57:18		[libpng16] Change "n bit" to "n-bit" in comments.
	da7a1e79	2014-11-20T09:33:25		[master] Imported from libpng-1.6.15.tar
	e8ef689c	2014-11-20T09:33:25		[libpng16] Imported from libpng-1.6.15.tar
	985dc00f	2014-11-06T23:17:35		[libpng16] Fix typo in example.c
	cda68df8	2014-11-06T22:11:39		[libpng16] Changed "#endif /* PNG_FEATURE_SUPPORTED */" to "#endif /* FEATURE */"
	61ea3eac	2014-11-06T06:39:56		[libpng16] Reverted use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING in the manual, example.c, pngtest.c, and applications in the contrib directory. It was incorrect advice.
	f1b547a5	2014-11-04T23:33:46		[libpng16] Use png_get_libpng_ver(NULL), not PNG_LIBPNG_VER_STRING
	5d713fe1	2014-10-31T20:48:55		[libpng16] Changed remaining "if (!x)" to "if (x == 0)" and "if (x)" to "if (x !== 0)"
	eed640db	2014-10-22T19:28:06		[master] Imported from libpng-1.6.14.tar
	6cae24c2	2014-10-13T11:11:21		[libpng16] Fixed some typos in comments.
	a11cd841	2014-10-05T13:45:38		[libpng16] Only mark text chunks as written after successfully writing them.
	d55c4f32	2014-08-21T05:53:38		[master] Imported from libpng-1.6.13.tar
	212fd574	2014-06-11T21:10:16		[libpng16] Bump version to 1.6.13beta01
	238e7646	2014-06-11T20:35:18		[master] Imported from libpng-1.6.12.tar
	e429c66c	2014-06-11T20:35:18		[libpng16] Imported from libpng-1.6.12.tar
	da7b692c	2014-06-06T11:42:50		[libpng16] Bump version to 1.6.12beta01
	d21eae44	2014-06-05T09:53:19		[master] Imported from libpng-1.6.11.tar
	c4e0f3de	2014-06-05T09:53:19		[libpng16] Imported from libpng-1.6.11.tar
	05670156	2014-03-08T12:39:52		[libpng16] Use "if (value != 0)" instead of "if (value)" consistently.
	fca68966	2013-07-17T19:03:02		[master] Imported from libpng-1.6.3.tar
	847e9efb	2013-07-17T19:03:02		[libpng16] Imported from libpng-1.6.3.tar
	56a1a666	2013-06-27T16:56:16		[libpng16] Imported from libpng-1.6.3beta09.tar
	b0d97356	2013-06-25T19:36:15		[libpng16] Revised example.c to illustrate use of PNG_DEFAULT_sRGB and PNG_GAMMA_MAC_18 as parameters for png_set_gamma().
	871b1d0f	2013-03-02T14:58:22		[libpng16] Bump version to 1.6.1beta05
	f3af706c	2012-02-02T23:11:45		[libpng16] Imported from libpng-1.6.0beta05.tar
	0da9cf38	2013-02-13T22:49:19		[master] Imported from libpng-1.6.0.tar
	c53778ff	2013-02-13T22:49:09		[libpng16] Imported from libpng-1.6.0.tar
	9477ecdf	2013-01-01T07:45:42		[libpng16] Updated copyright year to 2013 in newly-changed files
	c2ac10b5	2012-09-27T06:21:28		[master] Imported from libpng-1.5.13.tar
	ed3ca0e3	2012-08-31T17:32:36		[libpng16] Fixed the simplified API example programs and improved the error message if the version field is not set.
	432c174b	2012-08-09T20:14:48		[libpng16] Eliminated use of png_sizeof(); use sizeof() instead, and use. a consistent style for (sizeof type) and (sizeof (array))
	cad0150d	2012-08-08T21:11:55		[libpng16] Corrected handling of row_pointers in example.c and added some comments. It has apparently been wrong since libpng-1.0.1c (confusing use of a 1D and a 2D array for the image source).
	d5a80e09	2012-03-29T00:07:04		[master] Imported from libpng-1.5.10.tar
	5a13159b	2012-03-19T06:19:40		[master] Imported from libpng-1.5.10rc01.tar
	42ed02ed	2012-03-16T23:17:27		[libpng16] Reverted png_set_itxt(); it would not compile without warnings.
	31d66245	2012-03-16T13:53:25		[libpng16] Added png_set_itxt() (work in progress)
	f2715a55	2012-03-15T19:52:03		[libpng16] Revised example.c to put text strings in a temporary character array instead of directly assigning string constants to png_textp members. This avoids compiler warnings when -Wwrite-strings is enabled.
	1531bd61	2012-01-01T14:45:04		[libpng16] Updated copyright year to 2012
	fcd301da	2011-12-28T21:34:27		[libpng16] Changed png_memcpy to C assignment where appropriate. Changed all those uses of png_memcpy that were doing a simple assignment to assignments (all those cases where the thing being copied is a non-array C L-value.) Added some error checking to png_set_*() routines and removed the reference to the non-exported function png_memcpy() from example.c. Fixed the Visual C 64-bit build - it requires jmp_buf to be aligned, but it had become misaligned.
	5d56786e	2011-12-24T09:12:00		[libpng16] Implemented 'restrict' for png_info and png_struct. Added new "png_structrp" typedef. Because of the way libpng works both png_info and png_struct are always accessed via a single pointer. This means adding C99 'restrict' to the pointer gives the compiler some opportunity to optimize the code. This change allows that.
	13831bc0	2011-12-21T08:28:28		[libpng16] Updated "last changed" dates
	cd3f5bb5	2011-12-08T08:50:29		[libpng15] Imported from libpng-1.5.7.tar
	414769b4	2011-11-27T21:39:13		[libpng16] Add "free()" and "png_free_image()" calls to example code.
	2ddb252d	2011-11-25T07:27:51		[libpng16] Updated license info in contrib/examples and example.c
	cc1fa5df	2011-11-25T06:35:30		[libpng15] Imported from libpng-1.5.7beta05.tar
	7455cbf4	2011-11-24T14:40:36		[libpng16] Update internal version numbering and SO-numbers
	55e85c24	2011-11-04T13:34:48		[libpng15] Imported from libpng-1.5.7beta01.tar
	2b7d730e	2011-11-02T23:06:45		[libpng15] Bump version to libpng-1.5.7beta01
	bc6726bc	2011-11-02T22:43:00		[libpng15] Imported from libpng-1.5.6.tar
	4daae301	2011-10-06T21:37:47		[libpng15] #ifdef out png_progressive_combine_row() when interlacing is not supported.
	d404b6d4	2011-07-07T06:24:57		[devel] Imported from libpng-1.5.4.tar
	8d261262	2011-06-18T13:37:11		[devel] Fixed pngvalid, simplified macros, added checking for 0 in sCAL.
	ab63dd08	2011-06-17T20:04:17		[devel] Renamed png_set_chop_16() to png_set_strip_16().
	857dbbe7	2011-06-16T09:39:40		[devel] Revised example.c to demonstrate png_set_chop_16().
	550bab03	2011-06-14T06:17:26		[devel] Removed the ACCURATE and LEGACY options (they are no longer useable) Fixed some compiliation problems with scaling options.
	e1018a5b	2011-05-05T21:03:07		[devel] Imported from libpng-1.5.3beta05.tar
	dcc3505c	2011-03-31T11:23:49		[devel] Imported from libpng-1.5.2.tar
	f5ea1b70	2011-01-06T06:42:51		[devel] Imported from libpng-1.5.0.tar
	64b863cd	2011-01-04T09:57:06		[devel] Update copyright year and bump to version libpng-1.5.0rc07
	f3abb2c3	2010-10-17T12:51:53		[devel] Rename libpng.txt to libpng-manual.txt
	f0eda4e8	2010-10-15T15:01:57		[devel] Imported from libpng-1.5.0beta51.tar
	7e1fabe2	2010-10-14T07:29:03		[devel] Imported from libpng-1.5.0beta50.tar
	1b49a71d	2010-10-07T20:59:06		[devel] Imported from libpng-1.5.0beta49.tar
	83b4fc4a	2010-10-04T23:03:24		[devel] Imported from libpng-1.5.0beta48.tar
	b0876110	2010-10-04T17:24:36		[devel] Fixed problem with symbols creation in Makefile.am which was assuming that CCP writes to standard output by default (Martin Banky).
	bcb3aac3	2010-09-10T22:05:27		[devel] Fixed a number of problems with 64-bit compilation reported by Visual Studio 2010 (John Bowler).
	39515c9e	2010-08-28T06:21:35		[devel] Imported from libpng-1.5.0beta46.tar
	a7119547	2010-08-26T07:07:37		[devel] Imported from libpng-1.5.0beta45.tar
	9b362b1e	2010-08-24T09:03:56		[devel] Bump to version libpng-1.5.0beta45
	363f96e7	2010-08-11T09:00:26		[devel] Imported from libpng-1.5.0beta41.tar
	836fe66e	2010-08-06T06:52:34		[devel] Imported from libpng-1.5.0beta40.tar
	2c700f97	2010-08-02T07:42:08		[devel] Imported from libpng-1.5.0beta39.tar
	bdabd8f7	2010-07-31T07:16:11		[devel] Bump to version libpng-1.5.0beta38
	6c47e84d	2010-07-29T19:00:42		[devel] Bump to version libpng-1.5.0beta36
	31aee0d0	2010-07-29T17:39:14		[devel] Fixed point APIs are now supported throughout (no missing APIs). Internal fixed point arithmetic support exists for all internal floating point operations. sCAL validates the floating point strings it is passed. Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2 Two new APIs exist to get the number of passes without turning on the PNG_INTERLACE transform and to get the number of rows in the current pass. A new test program, pngvalid.c, validates the gamma code. Errors in the 16 bit gamma correction (overflows) have been corrected. cHRM chunk testing is done consistently (previously the floating point API bypassed it, because the test really didn't work on FP, now the test is performed on the actual values to be stored in the PNG file so it works in the FP case too.) Most floating point APIs now simply call the fixed point APIs after converting the values to the fixed point form used in the PNG file. The standard headers no longer include zlib.h, which is currently only required for pngstruct.h and can therefore be internal. (Patches by John Bowler)
	915bab5f	2010-07-24T08:22:59		[devel] Bump to version libpng-1.5.0beta35