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framework/rendering/postprocessing_pipeline.cpp

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+/* Copyright (c) 2020-2025, 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_pipeline.h"
+
+#include "common/utils.h"
+
+namespace vkb
+{
+PostProcessingPipeline::PostProcessingPipeline(RenderContext &render_context, ShaderSource triangle_vs) :
+    render_context{&render_context},
+    triangle_vs{std::move(triangle_vs)}
+{}
+
+void PostProcessingPipeline::draw(vkb::core::CommandBufferC &command_buffer, RenderTarget &default_render_target)
+{
+	for (current_pass_index = 0; current_pass_index < passes.size(); current_pass_index++)
+	{
+		auto &pass = *passes[current_pass_index];
+
+		if (pass.debug_name.empty())
+		{
+			pass.debug_name = fmt::format("PPP pass #{}", current_pass_index);
+		}
+		ScopedDebugLabel marker{command_buffer, pass.debug_name.c_str()};
+
+		if (!pass.prepared)
+		{
+			ScopedDebugLabel marker{command_buffer, "Prepare"};
+
+			pass.prepare(command_buffer, default_render_target);
+			pass.prepared = true;
+		}
+
+		if (pass.pre_draw)
+		{
+			ScopedDebugLabel marker{command_buffer, "Pre-draw"};
+
+			pass.pre_draw();
+		}
+
+		pass.draw(command_buffer, default_render_target);
+
+		if (pass.post_draw)
+		{
+			ScopedDebugLabel marker{command_buffer, "Post-draw"};
+
+			pass.post_draw();
+		}
+	}
+
+	current_pass_index = 0;
+}
+
+}        // namespace vkb