1 files changed, 154 insertions, 0 deletions
diff --git a/vulkan/scripts/null_generator.py b/vulkan/scripts/null_generator.py
new file mode 100644
index 0000000000..fcbaf393a5
--- /dev/null
+++ b/vulkan/scripts/null_generator.py
@@ -0,0 +1,154 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This script provides the functions for generating the null driver
+# framework directly from the vulkan registry (vk.xml).
+
+import generator_common as gencom
+import os
+
+copyright = """/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+"""
+
+def isDriverExtension(extensionName):
+  switchCase = {
+    'VK_ANDROID_native_buffer' : True,
+    'VK_EXT_debug_report' : True,
+    'VK_KHR_get_physical_device_properties2' : True
+  }
+
+  if extensionName in switchCase:
+    return switchCase[extensionName]
+  return False
+
+def isDriverFunction(functionName):
+  if functionName in gencom.extensionsDict:
+    return isDriverExtension(gencom.extensionsDict[functionName])
+  return True
+
+def null_driver_genh():
+  header = """#ifndef NULLDRV_NULL_DRIVER_H
+#define NULLDRV_NULL_DRIVER_H 1
+
+#include <vulkan/vk_android_native_buffer.h>
+#include <vulkan/vulkan.h>
+
+namespace null_driver {
+
+PFN_vkVoidFunction GetGlobalProcAddr(const char* name);
+PFN_vkVoidFunction GetInstanceProcAddr(const char* name);
+
+"""
+  genfile = os.path.join(os.path.dirname(__file__),'..','nulldrv','null_driver_gen2.h')
+  with open(genfile, 'w') as f:
+    f.write (copyright)
+    f.write (gencom.warning)
+    f.write (header)
+    gencom.clang_off(f,0)
+
+    for cmds in gencom.allCommandsList:
+      if isDriverFunction(cmds):
+        paramList = [''.join(i) for i in gencom.paramDict[cmds]]
+        f.write ('VKAPI_ATTR ' + gencom.returnTypeDict[cmds] + ' ' + cmds[2:] + '(' +', '.join(paramList) + ');\n')
+    f.write ("""VKAPI_ATTR VkResult GetSwapchainGrallocUsageANDROID(VkDevice device, VkFormat format, VkImageUsageFlags imageUsage, int* grallocUsage);
+VKAPI_ATTR VkResult AcquireImageANDROID(VkDevice device, VkImage image, int nativeFenceFd, VkSemaphore semaphore, VkFence fence);
+VKAPI_ATTR VkResult QueueSignalReleaseImageANDROID(VkQueue queue, uint32_t waitSemaphoreCount, const VkSemaphore* pWaitSemaphores, VkImage image, int* pNativeFenceFd);\n""")
+    gencom.clang_on(f,0)
+
+    f.write ('\n}  // namespace null_driver\n')
+    f.write ('\n#endif  // NULLDRV_NULL_DRIVER_H\n')
+
+def null_driver_gencpp():
+  header = """#include <algorithm>
+
+#include "null_driver_gen.h"
+
+using namespace null_driver;
+
+namespace {
+
+struct NameProc {
+    const char* name;
+    PFN_vkVoidFunction proc;
+};
+
+PFN_vkVoidFunction Lookup(const char* name,
+                          const NameProc* begin,
+                          const NameProc* end) {
+    const auto& entry = std::lower_bound(
+        begin, end, name,
+        [](const NameProc& e, const char* n) { return strcmp(e.name, n) < 0; });
+    if (entry == end || strcmp(entry->name, name) != 0)
+        return nullptr;
+    return entry->proc;
+}
+
+template <size_t N>
+PFN_vkVoidFunction Lookup(const char* name, const NameProc (&procs)[N]) {
+    return Lookup(name, procs, procs + N);
+}
+
+const NameProc kGlobalProcs[] = {
+"""
+  genfile = os.path.join(os.path.dirname(__file__),'..','nulldrv','null_driver_gen2.cpp')
+  with open(genfile, 'w') as f:
+    f.write (copyright)
+    f.write (gencom.warning)
+    f.write (header)
+    gencom.clang_off(f,1)
+
+    sortedCommandsList = sorted(gencom.allCommandsList)
+    for cmds in sortedCommandsList:
+      if isDriverFunction(cmds) and gencom.getDispatchTableType(cmds) == 'Global':
+        f.write (gencom.clang_off_spaces + '{\"' + cmds + '\", reinterpret_cast<PFN_vkVoidFunction>(static_cast<PFN_' + cmds + '>(' + cmds[2:] + '))},\n')
+    gencom.clang_on(f,1)
+    f.write ('};\n\n')
+
+    f.write ('const NameProc kInstanceProcs[] = {\n')
+    gencom.clang_off(f,1)
+    for cmds in sortedCommandsList:
+      if isDriverFunction(cmds):
+        f.write (gencom.clang_off_spaces + '{\"' + cmds + '\", reinterpret_cast<PFN_vkVoidFunction>(static_cast<PFN_' + cmds + '>(' + cmds[2:] + '))},\n')
+    gencom.clang_on(f,1)
+    f.write ('};\n\n}  // namespace\n\n')
+
+    f.write ("""namespace null_driver {
+
+PFN_vkVoidFunction GetGlobalProcAddr(const char* name) {
+    return Lookup(name, kGlobalProcs);
+}
+
+PFN_vkVoidFunction GetInstanceProcAddr(const char* name) {
+    return Lookup(name, kInstanceProcs);
+}
+
+}  // namespace null_driver\n""")
+