meson: Build i965 and dri stack

This gets pretty much the entire classic tree building, as well as
i965, including the various glapis. There are some workarounds for bugs
that are fixed in meson 0.43.0, which is due out on October 8th.

I have tested this with piglit using glx.

v2: - fix typo "vaule" -> "value"
    - use gtest dep instead of linking to libgtest (rebase error)
    - use gtest dep instead of linking against libgtest (rebase error)
    - copy the megadriver, then create hard links from that, then delete
      the megadriver. This matches the behavior of the autotools build.
      (Eric A)
    - Use host_machine instead of target_machine (Eric A)
    - Put a comment in the right place (Eric A)
    - Don't have two variables for the same information (Eric A)
    - Put pre_args at top of file in this patch (Eric A)
    - Fix glx generators in this patch instead of next (Eric A)
    - Remove -DMESON hack (Eric A)
    - add sha1_h to mesa in this patch (Eric A)
    - Put generators in loops when possible to reduce code in
      mapi/glapi/gen (Eric A)
v3: - put HAVE_X11_PLATFORM in this patch

Signed-off-by: Dylan Baker <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>

1 files changed, 101 insertions, 11 deletions

diff --git a/meson.build b/meson.build
index 97809e98289..958bd2313f1 100644
--- a/meson.build
+++ b/meson.build
@@ -21,10 +21,68 @@
 project('mesa', ['c', 'cpp'], version : '17.3.0-devel', license : 'MIT',
         default_options : ['c_std=c99', 'cpp_std=c++11'])
 
+# Arguments for the preprocessor, put these in a separate array from the C and
+# C++ (cpp in meson terminology) arguments since they need to be added to the
+# default arguments for both C and C++.
+pre_args = [
+  '-D__STDC_CONSTANT_MACROS',
+  '-D__STDC_FORMAT_MACROS',
+  '-D__STDC_LIMIT_MACROS',
+  '-DVERSION="@0@"'.format(meson.project_version()),
+  '-DPACKAGE_VERSION=VERSION',
+  '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
+]
+
 with_dri3 = true  # XXX: need a switch for this
 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
 with_tests = get_option('build-tests')
 with_valgrind = get_option('valgrind')
+with_asm = get_option('asm')
+
+# XXX: yeah, do these
+with_appledri = false
+with_windowsdri = false
+
+with_gles1 = get_option('gles1')
+with_gles2 = get_option('gles2')
+with_opengl = get_option('opengl')
+with_any_opengl = with_opengl or with_gles1 or with_gles2
+with_shared_glapi = get_option('shared-glapi')
+
+# TODO: these will need options, but at the moment they just control header
+# installs
+with_glx = false
+with_osmesa = false
+
+# shared-glapi is required if at least two OpenGL APIs are being built
+if not with_shared_glapi
+  if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
+      or (with_gles2 and with_opengl))
+    error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
+  endif
+endif
+
+# We require OpenGL for OpenGL ES
+if (with_gles1 or with_gles2) and not with_opengl
+  error('building OpenGL ES without OpenGL is not supported.')
+endif
+
+with_dri = false
+with_dri_i965 = false
+_drivers = get_option('dri-drivers')
+if _drivers != ''
+  _split = _drivers.split(',')
+  with_dri_i965 = _split.contains('i965')
+  with_dri = true
+endif
+
+if not with_dri
+  with_gles1 = false
+  with_gles2 = false
+  with_opengl = false
+  with_any_opengl = false
+  with_shared_glapi = false
+endif
 
 # TODO: there are more platforms required for non-vulkan drivers
 with_platform_wayland = false
@@ -63,13 +121,6 @@ if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
   error('When using GCC, version 4.4.6 or later is required.')
 endif
 
-# Arguments for the preprocessor, put these in a separate array from the C and
-# C++ (cpp in meson terminology) arguments since they need to be added to the
-# default arguments for both C and C++.
-pre_args = ['-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS',
-            '-D__STDC_LIMIT_MACROS',
-            '-DVERSION="@0@"'.format(meson.project_version())]
-
 # Define DEBUG for debug and debugoptimized builds
 if get_option('buildtype').startswith('debug')
   pre_args += '-DDEBUG'
@@ -204,7 +255,39 @@ endif
 
 # TODO: cross-compiling. I don't think this is relavent to meson
 
-# TODO: assembly support. mesa and vc4
+# FIXME: enable asm when cross compiler
+# This is doable (autotools does it), but it's not of immediate concern
+if meson.is_cross_build()
+  message('Cross compiling, disabling asm')
+  with_asm = false
+endif
+
+with_asm_arch = ''
+if with_asm
+  # TODO: SPARC and PPC
+  if host_machine.cpu_family() == 'x86'
+    if ['linux', 'bsd'].contains(host_machine.system()) # FIXME: hurd?
+      with_asm_arch = 'x86'
+      pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
+                   '-DUSE_SSE_ASM']
+    endif
+  elif host_machine.cpu_family() == 'x86_64'
+    if host_machine.system() == 'linux'
+      with_asm_arch = 'x86_64'
+      pre_args += ['-DUSE_X86_64_ASM']
+    endif
+  elif host_machine.cpu_family() == 'arm'
+    if host_machine.system() == 'linux'
+      with_asm_arch = 'arm'
+      pre_args += ['-DUSE_ARM_ASM']
+    endif
+  elif host_machine.cpu_family() == 'aarch64'
+    if host_machine.system() == 'linux'
+      with_asm_arch = 'aarch64'
+      pre_args += ['-DUSE_AARCH64_ASM']
+    endif
+  endif
+endif
 
 # Check for standard headers and functions
 if cc.has_header_symbol('sys/sysmacros.h', 'major')
@@ -264,9 +347,9 @@ if cc.has_function('dlopen')
 else
   dep_dl = cc.find_library('dl')
 endif
-
-if not cc.has_function('dladdr', dependencies : dep_dl)
-  error('dl library doesn\'t have dladdr')
+if cc.has_function('dladdr', dependencies : dep_dl)
+  # This is really only required for megadrivers
+  pre_args += '-DHAVE_DLADDR'
 endif
 
 if cc.has_function('dl_iterate_phdr')
@@ -336,7 +419,11 @@ endif
 
 # pthread stubs. Lets not and say we didn't
 
+prog_bison = find_program('bison', required : with_any_opengl)
+prog_flex = find_program('flex', required : with_any_opengl)
+
 # TODO: selinux
+dep_selinux = []
 
 # TODO: llvm-prefix and llvm-shared-libs
 
@@ -390,6 +477,7 @@ if with_platform_x11
     dependency('xcb-dri2', version : '>= 1.8'),
     dependency('xcb-xfixes'),
   ]
+  pre_args += '-DHAVE_X11_PLATFORM'
   if with_dri3
     dep_xcb_dri3 = [
       dep_xcb_dri2,
@@ -453,5 +541,7 @@ endforeach
 
 inc_include = include_directories('include')
 
+pkg = import('pkgconfig')
+
 subdir('include')
 subdir('src')