meson: build wgl state tracker

v4: - Handle enable gles properly
    - Add comments about what various #defines do
v5: - key NO_EXPORTS on shared glapi instead of gles.

Acked-by: Kristian H. Kristensen <hoegsberg@google.com>

src/gallium/meson.build

@@ -205,6 +205,9 @@ if with_gallium_st_nine
   subdir('state_trackers/nine')
   subdir('targets/d3dadapter9')
 endif
+if with_platform_windows
+  subdir('state_trackers/wgl')
+endif
 if with_tests
   subdir('targets/graw-null')
   if with_glx == 'gallium-xlib'

src/gallium/state_trackers/wgl/meson.build

@@ -0,0 +1,57 @@
+# Copyright © 2018 Intel Corporation
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+inc_wgl = include_directories('.')
+_c_args_wgl = []
+if not with_shared_glapi
+  # prevent _glapi_* from being declared __declspec(dllimport)
+  _c_args_wgl += '-D_GLAPI_NO_EXPORTS'
+endif
+
+libwgl = static_library(
+  'wgl',
+  files(
+    'stw_context.c',
+    'stw_device.c',
+    'stw_ext_context.c',
+    'stw_ext_extensionsstring.c',
+    'stw_ext_pbuffer.c',
+    'stw_ext_pixelformat.c',
+    'stw_ext_rendertexture.c',
+    'stw_ext_swapinterval.c',
+    'stw_framebuffer.c',
+    'stw_getprocaddress.c',
+    'stw_nopfuncs.c',
+    'stw_nopfuncs.h',
+    'stw_pixelformat.c',
+    'stw_st.c',
+    'stw_tls.c',
+    'stw_wgl.c',
+  ),
+  c_args : [
+    '-D_GDI32_',             # prevent wgl* being declared __declspec(dllimport)
+    '-DBUILD_GL32',          # declare gl* as __declspec(dllexport) in Mesa headers
+    '-DWIN32_LEAN_AND_MEAN', # http://msdn2.microsoft.com/en-us/library/6dwk3a1z.aspx
+    _c_args_wgl
+  ],
+  include_directories : [
+    inc_include, inc_src, inc_gallium, inc_gallium_aux, inc_mapi, inc_mesa,
+  ],
+)