加入volk 和 wma 后 编译不通过， 先保存代码

vulkan/framework/rendering/postprocessing_pass.cpp

@@ -0,0 +1,52 @@
+/* Copyright (c) 2020, Arm Limited and Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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.
+ */
+
+#include "postprocessing_pass.h"
+
+#include "postprocessing_pipeline.h"
+
+namespace vkb
+{
+PostProcessingPassBase::PostProcessingPassBase(PostProcessingPipeline *parent) :
+    parent{parent}
+{}
+
+RenderContext &PostProcessingPassBase::get_render_context() const
+{
+	return *parent->render_context;
+}
+
+ShaderSource &PostProcessingPassBase::get_triangle_vs() const
+{
+	return parent->triangle_vs;
+}
+
+PostProcessingPassBase::BarrierInfo PostProcessingPassBase::get_predecessor_src_barrier_info(BarrierInfo fallback) const
+{
+	const size_t cur_pass_i = parent->get_current_pass_index();
+	if (cur_pass_i > 0)
+	{
+		const auto &prev_pass = parent->get_pass<vkb::PostProcessingPassBase>(cur_pass_i - 1);
+		return prev_pass.get_src_barrier_info();
+	}
+	else
+	{
+		return fallback;
+	}
+}
+
+}        // namespace vkb