vulkan: put generated defines into their own header

v2: Put vk_enum_defines.h in the list of generated files

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9045>

src/intel/vulkan/anv_formats.c

@@ -23,6 +23,7 @@
 
 #include "anv_private.h"
 #include "drm-uapi/drm_fourcc.h"
+#include "vk_enum_defines.h"
 #include "vk_enum_to_str.h"
 #include "vk_format.h"
 #include "vk_util.h"

src/vulkan/util/gen_enum_to_str.py

@@ -136,10 +136,6 @@ H_TEMPLATE = Template(textwrap.dedent(u"""\
     extern "C" {
     #endif
 
-    % for ext in extensions:
-    #define _${ext.name}_number (${ext.number})
-    % endfor
-
     % for enum in enums:
       % if enum.guard:
 #ifdef ${enum.guard}
@@ -161,6 +157,34 @@ H_TEMPLATE = Template(textwrap.dedent(u"""\
     #endif"""))
 
 
+H_DEFINE_TEMPLATE = Template(textwrap.dedent(u"""\
+    /* Autogenerated file -- do not edit
+     * generated by ${file}
+     *
+     ${copyright}
+     */
+
+    #ifndef MESA_VK_ENUM_DEFINES_H
+    #define MESA_VK_ENUM_DEFINES_H
+
+    #include <vulkan/vulkan.h>
+    #include <vulkan/vk_android_native_buffer.h>
+
+    #ifdef __cplusplus
+    extern "C" {
+    #endif
+
+    % for ext in extensions:
+    #define _${ext.name}_number (${ext.number})
+    % endfor
+
+    #ifdef __cplusplus
+    } /* extern "C" */
+    #endif
+
+    #endif"""))
+
+
 class NamedFactory(object):
     """Factory for creating enums."""
 
@@ -375,7 +399,8 @@ def main():
     object_types = sorted(obj_type_factory.registry.values(), key=lambda e: e.name)
 
     for template, file_ in [(C_TEMPLATE, os.path.join(args.outdir, 'vk_enum_to_str.c')),
-                            (H_TEMPLATE, os.path.join(args.outdir, 'vk_enum_to_str.h'))]:
+                            (H_TEMPLATE, os.path.join(args.outdir, 'vk_enum_to_str.h')),
+                            (H_DEFINE_TEMPLATE, os.path.join(args.outdir, 'vk_enum_defines.h'))]:
         with open(file_, 'w') as f:
             f.write(template.render(
                 file=os.path.basename(__file__),

src/vulkan/util/meson.build

@@ -111,7 +111,7 @@ vk_dispatch_table = custom_target(
 vk_enum_to_str = custom_target(
   'vk_enum_to_str',
   input : ['gen_enum_to_str.py', vk_api_xml],
-  output : ['vk_enum_to_str.c', 'vk_enum_to_str.h'],
+  output : ['vk_enum_to_str.c', 'vk_enum_to_str.h', 'vk_enum_defines.h'],
   command : [
     prog_python, '@INPUT0@', '--xml', '@INPUT1@',
     '--outdir', meson.current_build_dir()