Change source. Other modifications.

Upstream wine-staging hosted at
'https://github.com/wine-compholio/wine-staging/' is no more
maintained. A community fork is now maintained at
'https://github.com/wine-staging/wine-staging/'. This fork was
received by mainstream Arch Linux in it's official repositories
in the stable wine-staging package, so it seems to be safe to
use it here too. Probably other mainstream Linux distributions
will follow this fork too, like Gentoo.

Other modifications on this commit:
-----------------------------------
- added freetype harmony fix
- added wine binfmt
- makedepends: added {lib32-}vulkan-icd-loader and {lib32-}sdl2
- optdepends : added {lib32-}sdl2
- optdepends : removed {lib32-}libtxc_dxtn

Note:
-----
libtxc_dxtn is now integrated into mesa. Packages libtxc_dxtn and
lib32-libtxc_dxtn were dropped from the official repositories.

References:
-----------
https://wine-staging.com/news/2018-02-17-future-wine-staging.html
https://www.winehq.org/pipermail/wine-devel/2018-February/122848.html
https://www.winehq.org/pipermail/wine-devel/2018-February/123080.html
https://git.archlinux.org/svntogit/community.git/commit/trunk?h=packages/wine-staging&id=1a48e921ac7aa7f9c622f20e384e14324a609fa3
https://lists.freedesktop.org/archives/mesa-dev/2017-October/171265.html
https://cgit.freedesktop.org/mesa/mesa/commit/?id=04396a134f003aece573df593acfa1ab4418ffe8
https://cgit.freedesktop.org/mesa/mesa/commit/?id=f7daa737d17df6d0a847e5c61e48d25e598671f4
https://cgit.freedesktop.org/mesa/mesa/commit/?id=d400348c73f0901eb24ff4d1562043d3119ef439
https://bugs.archlinux.org/task/56660
https://git.archlinux.org/svntogit/packages.git/commit/trunk?h=packages/mesa&id=8b2dc9909803d680f67bb3d559d3e1c0a5f1e2ec

1 files changed, 63 insertions, 0 deletions

diff --git a/harmony-fix.diff b/harmony-fix.diff
new file mode 100644
index 000000000000..fe0c8c929d4a
--- /dev/null
+++ b/harmony-fix.diff
@@ -0,0 +1,63 @@
+diff -u -r wine/dlls/gdi32/freetype.c wine-ft281/dlls/gdi32/freetype.c
+--- wine/dlls/gdi32/freetype.c	2017-10-04 18:01:36.000000000 +0200
++++ wine-ft281/dlls/gdi32/freetype.c	2017-10-10 10:29:17.506632615 +0200
+@@ -996,18 +996,23 @@
+ 
+ static BOOL is_subpixel_rendering_enabled( void )
+ {
+-#ifdef FT_LCD_FILTER_H
+     static int enabled = -1;
+     if (enabled == -1)
+     {
+-        enabled = (pFT_Library_SetLcdFilter &&
+-                   pFT_Library_SetLcdFilter( NULL, 0 ) != FT_Err_Unimplemented_Feature);
++        /* >= 2.8.1 provides LCD rendering without filters */
++        if (FT_Version.major > 2 ||
++            FT_Version.major == 2 && FT_Version.minor > 8 ||
++            FT_Version.major == 2 && FT_Version.minor == 8 && FT_Version.patch >= 1)
++            enabled = TRUE;
++#ifdef FT_LCD_FILTER_H
++        else if (pFT_Library_SetLcdFilter &&
++                 pFT_Library_SetLcdFilter( NULL, 0 ) != FT_Err_Unimplemented_Feature)
++            enabled = TRUE;
++#endif
++        else enabled = FALSE;
+         TRACE("subpixel rendering is %senabled\n", enabled ? "" : "NOT ");
+     }
+     return enabled;
+-#else
+-    return FALSE;
+-#endif
+ }
+ 
+ 
+@@ -7271,7 +7276,6 @@
+     case WINE_GGO_HBGR_BITMAP:
+     case WINE_GGO_VRGB_BITMAP:
+     case WINE_GGO_VBGR_BITMAP:
+-#ifdef FT_LCD_FILTER_H
+       {
+         switch (ft_face->glyph->format)
+         {
+@@ -7357,8 +7361,11 @@
+             if ( needsTransform )
+                 pFT_Outline_Transform (&ft_face->glyph->outline, &transMatTategaki);
+ 
++#ifdef FT_LCD_FILTER_H
+             if ( pFT_Library_SetLcdFilter )
+                 pFT_Library_SetLcdFilter( library, FT_LCD_FILTER_DEFAULT );
++#endif
++
+             pFT_Render_Glyph (ft_face->glyph, render_mode);
+ 
+             src = ft_face->glyph->bitmap.buffer;
+@@ -7439,9 +7446,6 @@
+ 
+         break;
+       }
+-#else
+-      return GDI_ERROR;
+-#endif
+ 
+     case GGO_NATIVE:
+       {