anv: Add a new centralized extensions file

This will allow us to keep everything in one place when it comes to
declaring what extensions are supported.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

src/intel/Makefile.vulkan.am

@@ -24,7 +24,8 @@
 # out and we'll fail at `make dist'
 vulkan_api_xml = $(top_srcdir)/src/vulkan/registry/vk.xml
 
-vulkan/anv_entrypoints.c: vulkan/anv_entrypoints_gen.py $(vulkan_api_xml)
+vulkan/anv_entrypoints.c: vulkan/anv_entrypoints_gen.py \
+			  vulkan/anv_extensions.py $(vulkan_api_xml)
 	$(MKDIR_GEN)
 	$(AM_V_GEN)$(PYTHON2) $(srcdir)/vulkan/anv_entrypoints_gen.py \
 		--xml $(vulkan_api_xml) --outdir $(builddir)/vulkan
@@ -39,6 +40,7 @@ CLEANFILES += \
 EXTRA_DIST += \
 	$(top_srcdir)/include/vulkan/vk_icd.h \
 	vulkan/anv_entrypoints_gen.py \
+	vulkan/anv_extensions.py \
 	vulkan/dev_icd.json.in \
 	vulkan/intel_icd.json.in \
 	vulkan/TODO

src/intel/vulkan/anv_entrypoints_gen.py

@@ -30,31 +30,9 @@ import xml.etree.cElementTree as et
 
 from mako.template import Template
 
-MAX_API_VERSION = 1.0
+import anv_extensions
 
-SUPPORTED_EXTENSIONS = [
-    'VK_KHR_dedicated_allocation',
-    'VK_KHR_descriptor_update_template',
-    'VK_KHR_external_memory',
-    'VK_KHR_external_memory_capabilities',
-    'VK_KHR_external_memory_fd',
-    'VK_KHR_get_memory_requirements2',
-    'VK_KHR_get_physical_device_properties2',
-    'VK_KHR_get_surface_capabilities2',
-    'VK_KHR_incremental_present',
-    'VK_KHR_maintenance1',
-    'VK_KHR_push_descriptor',
-    'VK_KHR_sampler_mirror_clamp_to_edge',
-    'VK_KHR_shader_draw_parameters',
-    'VK_KHR_storage_buffer_storage_class',
-    'VK_KHR_surface',
-    'VK_KHR_swapchain',
-    'VK_KHR_variable_pointers',
-    'VK_KHR_wayland_surface',
-    'VK_KHR_xcb_surface',
-    'VK_KHR_xlib_surface',
-    'VK_KHX_multiview',
-]
+MAX_API_VERSION = 1.0
 
 # We generate a static hash table for entry point lookup
 # (vkGetProcAddress). We use a linear congruential generator for our hash
@@ -290,8 +268,9 @@ def get_entrypoints(doc, entrypoints_to_defines):
         for command in feature.findall('./require/command'):
             enabled_commands.add(command.attrib['name'])
 
+    supported = set(ext.name for ext in anv_extensions.EXTENSIONS)
     for extension in doc.findall('.extensions/extension'):
-        if extension.attrib['name'] not in SUPPORTED_EXTENSIONS:
+        if extension.attrib['name'] not in supported:
             continue
 
         assert extension.attrib['supported'] == 'vulkan'

src/intel/vulkan/anv_extensions.py

@@ -0,0 +1,65 @@
+COPYRIGHT = """\
+/*
+ * Copyright 2017 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
+ */
+"""
+
+import argparse
+import xml.etree.cElementTree as et
+
+from mako.template import Template
+
+class Extension:
+    def __init__(self, name, ext_version, enable):
+        self.name = name
+        self.ext_version = int(ext_version)
+        if enable is True:
+            self.enable = 'true';
+        elif enable is False:
+            self.enable = 'false';
+        else:
+            self.enable = enable;
+
+EXTENSIONS = [
+    Extension('VK_KHR_dedicated_allocation',              1, True),
+    Extension('VK_KHR_descriptor_update_template',        1, True),
+    Extension('VK_KHR_external_memory',                   1, True),
+    Extension('VK_KHR_external_memory_capabilities',      1, True),
+    Extension('VK_KHR_external_memory_fd',                1, True),
+    Extension('VK_KHR_get_memory_requirements2',          1, True),
+    Extension('VK_KHR_get_physical_device_properties2',   1, True),
+    Extension('VK_KHR_get_surface_capabilities2',         1, True),
+    Extension('VK_KHR_incremental_present',               1, True),
+    Extension('VK_KHR_maintenance1',                      1, True),
+    Extension('VK_KHR_push_descriptor',                   1, True),
+    Extension('VK_KHR_sampler_mirror_clamp_to_edge',      1, True),
+    Extension('VK_KHR_shader_draw_parameters',            1, True),
+    Extension('VK_KHR_storage_buffer_storage_class',      1, True),
+    Extension('VK_KHR_surface',                          25, True),
+    Extension('VK_KHR_swapchain',                        68, True),
+    Extension('VK_KHR_variable_pointers',                 1, True),
+    Extension('VK_KHR_wayland_surface',                   6, 'VK_USE_PLATFORM_WAYLAND_KHR'),
+    Extension('VK_KHR_xcb_surface',                       6, 'VK_USE_PLATFORM_XCB_KHR'),
+    Extension('VK_KHR_xlib_surface',                      6, 'VK_USE_PLATFORM_XLIB_KHR'),
+    Extension('VK_KHX_multiview',                         1, True),
+]