intel/decoder: Move decoder to a separate module

Depends on both intel/common and intel/compiler.  Breaks circular
dependency between these two modules.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27647>

src/intel/decoder/meson.build

@@ -0,0 +1,79 @@
+# Copyright © 2017 Intel Corporation
+# SPDX-License-Identifier: MIT
+
+libintel_decoder_files = files(
+  'intel_decoder.h',
+  )
+
+libintel_decoder_deps = [
+  idep_intel_dev
+]
+
+if not dep_expat.found()
+  libintel_decoder_files += files(
+    'intel_batch_decoder_stub.c',
+  )
+else
+  libintel_decoder_deps += dep_expat
+  libintel_decoder_files += files(
+    'intel_decoder.c',
+    'intel_batch_decoder.c',
+  )
+endif
+
+libintel_decoder = static_library(
+  'intel_decoder',
+  [libintel_decoder_files, genX_xml_h, sha1_h],
+  include_directories : [inc_include, inc_src, inc_intel],
+  c_args : [no_override_init_args, sse2_args],
+  gnu_symbol_visibility : 'hidden',
+  dependencies : libintel_decoder_deps,
+)
+
+idep_intel_decoder = declare_dependency(
+  link_with : [libintel_decoder],
+  dependencies : libintel_decoder_deps,
+)
+
+if with_tests and not with_platform_android
+  gentest_xml = files('tests/gentest.xml')
+  _name = 'gentest_pack.h'
+  gentest_pack = custom_target(
+    _name,
+    input : [gen_pack_header_py, gentest_xml],
+    output : _name,
+    command : [prog_python, '@INPUT@'],
+    capture : true,
+    depend_files: gen_pack_header_deps
+  )
+
+  genxml_path = join_paths(dir_source_root,
+                           '@0@'.format(gentest_xml[0]))
+
+  test(
+    'genxml_test',
+    executable(
+      'genxml_test',
+      ['tests/genxml_test.c', gentest_pack],
+      include_directories : [
+        inc_include,
+        inc_src,
+        inc_intel
+      ],
+      dependencies : [
+        idep_libintel_common,
+        idep_intel_decoder,
+        idep_mesautil,
+        idep_intel_dev,
+        idep_genxml,
+      ],
+      c_args : [
+        '-DGENXML_DIR="@0@"'.format(fs.parent(genxml_path)),
+        '-DGENXML_FILE="@0@"'.format(fs.name(genxml_path)),
+      ],
+    ),
+    args : ['-quiet'],
+    suite : ['intel'],
+  )
+endif
+