Support building ext/gd without libxpm on Windows (GH-15846)

For GD, libxpm is an optional dependency, and we should treat it as
such, i.e. if the library is not found, we build ext/gd w

Support building ext/gd without libxpm on Windows (GH-15846)

For GD, libxpm is an optional dependency, and we should treat it as
such, i.e. if the library is not found, we build ext/gd without XPM
support.

This should also be done for other optional dependencies (like libjpeg),
but since we're close to PHP 8.4.0RC1, we postpone that. However, wrt
libxpm[1] we're taking action immediately, so that we can ship builds
without XPM support, or at least custom builds without XPM support are
possible without modifying the sources.

[1] <https://news-web.php.net/php.internals/125502>

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Update gd extension preprocessor macros help texts (#15296)

PHP_GD_CHECK_FORMAT macro 2nd argument is changed from automatic
AC_DEFINE_UNQUOTED to manual action for easier usage.

Fix HAVE_LIBGD usage (#15226)

When PHP gd extension uses the external system GD library, the
HAVE_LIBGD preprocessor macro gets defined in Autotools. On Windows it
was previously alw

Fix HAVE_LIBGD usage (#15226)

When PHP gd extension uses the external system GD library, the
HAVE_LIBGD preprocessor macro gets defined in Autotools. On Windows it
was previously always defined when bundled library is used. This fixes
the usage and adds help texts.

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Sync headers installation

This syncs the installed sapi and extension headers on *nix and Windows
systems by installing only what is intended outside of php-src.

- ext/gd: witho

Sync headers installation

This syncs the installed sapi and extension headers on *nix and Windows
systems by installing only what is intended outside of php-src.

- ext/gd: without gd_arginfo.h and gd_compat.h
- ext/hash: php_hash_joaat.h and php_hash_fnv.h added also on Windows
installation; xxhash/xxhash.h added on both installations as it is
included in php_hash_xxhash.h; Include path for xxhash.h changed to
relative so the php_hash_xxhash.h can be included outside of php-src;
Redundant include flags removed
- ext/iconv: without iconv_arginfo.h
- ext/mysqli: mysqli_mysqlnd.h was missing on Windows
- ext/phar: php_phar.h was missing on Windows
- ext/sodium: php_libsodium.h was missing on *nix
- ext/xml: without xml_arginfo.h
- sapi/cli: cli.h was missing on Windows

Closes GH-13210
Closes GH-13213

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"Export" relevant GD macros

For parity with non Windows systems, we should `AC_DEFINE` these macros
so that they are defined in config.w32.h instead of directly passed to
the compile

"Export" relevant GD macros

For parity with non Windows systems, we should `AC_DEFINE` these macros
so that they are defined in config.w32.h instead of directly passed to
the compiler. This allows extensions which have ext/gd as dependency
to check for these macros. E.g. ext/ps does this[1], and fails to
build on Windows, because `HAVE_GD_BUNDLED` isn't defined.

[1] <https://github.com/steinm/ps/blob/RELEASE_1_4_4/ps.c#L34>

Closes GH-7680.

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Use the standard _WIN32 instead of the custom MSWIN32 in libgd

We're already checking `_WIN32` elsewhere in our bundled libgd, so it
makes no sense to also have a custom `MSWIN32`.

Use the standard _WIN32 instead of the custom MSWIN32 in libgd

We're already checking `_WIN32` elsewhere in our bundled libgd, so it
makes no sense to also have a custom `MSWIN32`.

Closes GH-7682.

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Drop unused GD defines

These are not used in the bundled libgd, and not used in config.m4
either.

Closes GH-7681.

Windows: allow GD ext without avif.dll

Closes GH-7200.

Add avif support to ext/gd

This backports avif support from upstream libgd into bundled libgd
and exposes the functionality through new imagecreatefromavif()
and imageavif() function

Add avif support to ext/gd

This backports avif support from upstream libgd into bundled libgd
and exposes the functionality through new imagecreatefromavif()
and imageavif() functions.

Closes GH-7026.

Co-authored-by: Christoph M. Becker <cmbecker69@gmx.de>

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Export php_gd_libgdimageptr_from_zval_p()

Some extension may need to retrieve the `gdImagePtr` from an `GdImage`
object; thus, we export the respective function. To not being forced

Export php_gd_libgdimageptr_from_zval_p()

Some extension may need to retrieve the `gdImagePtr` from an `GdImage`
object; thus, we export the respective function. To not being forced
to include gd.h in php_gd.h, we use the opaque `struct gdImageStruct *`
as return type.

We also rename php_gd2.dll to php_gd.dll, since there's not really much
point in giving the DLL a version number, since there is no php_gd.dll
for years (if there ever has been). Renaming, on the other hand,
matches the name on other systems (gd.so), and allows to actually use
`ADD_EXTENSION_DEP()`.

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Add imagegetinterpolation()

While `imagesetinterpolation()` is available as of PHP 5.5.0,
there is no according getter function, so users would have to track the
current interpolatio

Add imagegetinterpolation()

While `imagesetinterpolation()` is available as of PHP 5.5.0,
there is no according getter function, so users would have to track the
current interpolation method manually.

To remedy this, we introduce `imagegetinterpolation()` as thin wrapper
for `gdImageGetInterpolationMethod()` (which has been introduced with
libgd 2.1.1), and use `im->interpolation_id` as fallback for older
libgd. Since our bundled libgd does not yet have this function, we add
it.

We also simplify the recently introduced bug79068.phpt, where it is
sufficient to check that the interpolation method has not been changed.

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Support TGA reading

We add PHP bindings for libgd's features to read TGA files, which are
available as of libgd 2.1.0.

As PHP's bundled libgd doesn't yet include the respective

Support TGA reading

We add PHP bindings for libgd's features to read TGA files, which are
available as of libgd 2.1.0.

As PHP's bundled libgd doesn't yet include the respective features of the
external libgd, we add these.

Since TGA has no easily recognizable file signature, we don't add TGA
support for imagecreatefromstring() or getimagesize() and friends.

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Trim trailing whitespace in source code files

Trim trailing whitespace in source code files

Trim trailing whitespace in source code files

Trim trailing whitespace in source code files

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

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Implement #69606: Support BMPs (added in GD 2.1.0)

We add PHP bindings for libgd's features to read and write BMP files, which
are available as of libgd 2.1.0.

As PHP's bundled

Implement #69606: Support BMPs (added in GD 2.1.0)

We add PHP bindings for libgd's features to read and write BMP files, which
are available as of libgd 2.1.0.

As PHP's bundled libgd doesn't yet include the respective features of the
external libgd, we add these.

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Add an include path for freetype which is relevant for cmake builds

Sync with libgd wrt. compilation units

* integrate gd_arc.c into gd.c (as of gd-2.1.0-alpha1)
* rename gd_color.c to gd_color_match.c (as of gd-2.1.0-alpha1)
* remove mathmake.c (

Sync with libgd wrt. compilation units

* integrate gd_arc.c into gd.c (as of gd-2.1.0-alpha1)
* rename gd_color.c to gd_color_match.c (as of gd-2.1.0-alpha1)
* remove mathmake.c (as of GD_2_0_34RC1)
* rename xbm.c to gd_xbm.c (as of gd-2.1.0-alpha1)

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Remove unused compilation unit

gd_arc_f_buggy.c has already been removed in GD 2.0.34RC, so we're also
getting rid of the file.

Remove effectless --enable-gd-native-ttf and USE_GD_IMGSTRTTF

--enable-gd-native-ttf did set USE_GD_IMGSTRTTF, which is otherwise unused
as of commit 8a90aad3 (i.e. PHP 5.5.0), at least.

fix libwebp namings

enable ext/gd to support libpng16

Replaced libvpx by libwebp (first draft; Windows only)

ext/gd/libgd/gd_webp.c has been taken from libgd[1]. Mainly, gd_error(X) has
been subsituted by zend_error(E_ERROR, X) and BGD_DECL

Replaced libvpx by libwebp (first draft; Windows only)

ext/gd/libgd/gd_webp.c has been taken from libgd[1]. Mainly, gd_error(X) has
been subsituted by zend_error(E_ERROR, X) and BGD_DECLARE(X) by X. Further
modifications are obvious from the diff.

All GD tests are passing, what raises hope, but we need more WebP tests,
anyway.

[1] <https://github.com/libgd/libgd/blob/7ec030c4f1dae75ed5d82c3eed2abe6775742c75/src/gd_webp.c>

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