107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/* Copyright (c) 2024, Mobica Limited
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 the "License";
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Rendering using primitive clipping configured by dynamic pipeline state
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*/
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#pragma once
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#include "api_vulkan_sample.h"
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class DynamicPrimitiveClipping : public ApiVulkanSample
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{
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public:
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DynamicPrimitiveClipping();
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virtual ~DynamicPrimitiveClipping();
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// Override basic framework functionality
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bool prepare(const vkb::ApplicationOptions &options) override;
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void request_gpu_features(vkb::PhysicalDevice &gpu) override;
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void build_command_buffers() override;
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void render(float delta_time) override;
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void on_update_ui_overlay(vkb::Drawer &drawer) override;
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// Auxiliary functions
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void load_assets();
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void setup_layouts();
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void prepare_pipelines();
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void prepare_uniform_buffers();
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void update_uniform_buffers();
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void setup_descriptor_pool();
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void setup_descriptor_sets();
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private:
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// vector of models rendered by sample
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struct Models
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{
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std::vector<std::unique_ptr<vkb::sg::SubMesh>> objects;
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std::vector<glm::mat4> transforms;
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int32_t object_index = 0;
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} models;
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std::vector<std::string> model_names;
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std::vector<std::string> visualization_names;
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// sample parameters used on CPU side
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struct Params
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{
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bool usePrimitiveClipping = true;
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bool drawObject[2] = {true, true};
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int32_t visualization = 0;
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bool useDepthClipping = false;
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} params;
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// parameters sent to shaders through uniform buffers
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struct UBOVS
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{
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alignas(16) glm::mat4 projection;
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alignas(16) glm::mat4 view;
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alignas(16) glm::mat4 model;
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alignas(16) glm::vec4 colorTransformation;
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alignas(8) glm::ivec2 sceneTransformation;
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alignas(4) float usePrimitiveClipping;
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} ubo_positive, ubo_negative;
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struct
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{
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std::unique_ptr<vkb::core::BufferC> buffer_positive;
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std::unique_ptr<vkb::core::BufferC> buffer_negative;
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} uniform_buffers;
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// pipeline infrastructure
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struct
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{
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VkPipelineLayout models = VK_NULL_HANDLE;
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} pipeline_layouts;
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struct
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{
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VkDescriptorSetLayout models = VK_NULL_HANDLE;
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} descriptor_set_layouts;
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struct
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{
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VkDescriptorSet descriptor_positive = VK_NULL_HANDLE;
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VkDescriptorSet descriptor_negative = VK_NULL_HANDLE;
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} descriptor_sets;
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VkPipeline sample_pipeline{};
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};
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std::unique_ptr<vkb::VulkanSampleC> create_dynamic_primitive_clipping();
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