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2025-09-04 10:54:47 +08:00
commit 6bc8f61b18
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+/* Copyright (c) 2023-2024, Mobica Limited
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "api_vulkan_sample.h"
+#include "scene_graph/components/pbr_material.h"
+
+class PatchControlPoints : public ApiVulkanSample
+{
+  public:
+	struct
+	{
+		bool  tessellation = true;
+		float tess_level   = 3.0f;
+	} gui_settings;
+
+	/* Buffer used in both pipelines */
+	struct UBOCOMM
+	{
+		glm::mat4 projection;
+		glm::mat4 view;
+	} ubo_common;
+
+	struct UBOTESS
+	{
+		float tessellation_level = 3.0f;
+	} ubo_tess;
+
+	VkDescriptorPool descriptor_pool{VK_NULL_HANDLE};
+
+	struct
+	{
+		VkDescriptorSetLayout static_tessellation{VK_NULL_HANDLE};
+		VkDescriptorSetLayout dynamic_tessellation{VK_NULL_HANDLE};
+	} descriptor_set_layouts;
+
+	struct
+	{
+		VkPipelineLayout static_tessellation{VK_NULL_HANDLE};
+		VkPipelineLayout dynamic_tessellation{VK_NULL_HANDLE};
+	} pipeline_layouts;
+
+	struct
+	{
+		VkDescriptorSet static_tessellation{VK_NULL_HANDLE};
+		VkDescriptorSet dynamic_tessellation{VK_NULL_HANDLE};
+	} descriptor_sets;
+
+	struct
+	{
+		VkPipeline static_tessellation{VK_NULL_HANDLE};
+		VkPipeline dynamic_tessellation{VK_NULL_HANDLE};
+	} pipeline;
+
+	struct
+	{
+		std::unique_ptr<vkb::core::BufferC> common;
+		std::unique_ptr<vkb::core::BufferC> static_tessellation;
+		std::unique_ptr<vkb::core::BufferC> dynamic_tessellation;
+	} uniform_buffers;
+
+	struct
+	{
+		glm::vec3 direction;
+	} push_const_block;
+
+	std::unique_ptr<vkb::sg::SubMesh> model;
+
+	PatchControlPoints();
+	~PatchControlPoints() override;
+
+	void render(float delta_time) override;
+	void build_command_buffers() override;
+	bool prepare(const vkb::ApplicationOptions &options) override;
+	void request_gpu_features(vkb::PhysicalDevice &gpu) override;
+	void on_update_ui_overlay(vkb::Drawer &drawer) override;
+
+	void prepare_uniform_buffers();
+	void update_uniform_buffers();
+	void create_pipelines();
+	void draw();
+
+	void load_assets();
+	void create_descriptor_pool();
+	void setup_descriptor_set_layout();
+	void create_descriptor_sets();
+};
+
+std::unique_ptr<vkb::VulkanSampleC> create_patch_control_points();