Tony Barbour | 2f18b29 | 2016-02-25 15:44:10 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 Google, Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included |
| 12 | * in all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 20 | * DEALINGS IN THE SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #ifndef SMOKE_H |
| 24 | #define SMOKE_H |
| 25 | |
| 26 | #include <condition_variable> |
| 27 | #include <memory> |
| 28 | #include <mutex> |
| 29 | #include <string> |
| 30 | #include <thread> |
| 31 | #include <vector> |
| 32 | |
| 33 | #include <vulkan/vulkan.h> |
| 34 | #include <glm/glm.hpp> |
| 35 | |
| 36 | #include "Simulation.h" |
| 37 | #include "Game.h" |
| 38 | |
| 39 | class Meshes; |
| 40 | |
| 41 | class Smoke : public Game { |
| 42 | public: |
| 43 | Smoke(const std::vector<std::string> &args); |
| 44 | ~Smoke(); |
| 45 | |
| 46 | void attach_shell(Shell &sh); |
| 47 | void detach_shell(); |
| 48 | |
| 49 | void attach_swapchain(); |
| 50 | void detach_swapchain(); |
| 51 | |
| 52 | void on_key(Key key); |
| 53 | void on_tick(); |
| 54 | |
| 55 | void on_frame(float frame_pred); |
| 56 | |
| 57 | private: |
| 58 | class Worker { |
| 59 | public: |
| 60 | Worker(Smoke &smoke, int index, int object_begin, int object_end); |
| 61 | |
| 62 | void start(); |
| 63 | void stop(); |
| 64 | void update_simulation(); |
| 65 | void draw_objects(VkFramebuffer fb); |
| 66 | void wait_idle(); |
| 67 | |
| 68 | Smoke &smoke_; |
| 69 | |
| 70 | const int index_; |
| 71 | const int object_begin_; |
| 72 | const int object_end_; |
| 73 | |
| 74 | const float tick_interval_; |
| 75 | |
| 76 | VkFramebuffer fb_; |
| 77 | |
| 78 | private: |
| 79 | enum State { |
| 80 | INIT, |
| 81 | IDLE, |
| 82 | STEP, |
| 83 | DRAW, |
| 84 | }; |
| 85 | |
| 86 | void update_loop(); |
| 87 | |
| 88 | static void thread_loop(Worker *worker) { worker->update_loop(); } |
| 89 | |
| 90 | std::thread thread_; |
| 91 | std::mutex mutex_; |
| 92 | std::condition_variable state_cv_; |
| 93 | State state_; |
| 94 | }; |
| 95 | |
| 96 | struct Camera { |
| 97 | glm::vec3 eye_pos; |
| 98 | glm::mat4 view_projection; |
| 99 | |
| 100 | Camera(float eye) : eye_pos(eye) {} |
| 101 | }; |
| 102 | |
| 103 | struct FrameData { |
| 104 | // signaled when this struct is ready for reuse |
| 105 | VkFence fence; |
| 106 | |
| 107 | VkCommandBuffer primary_cmd; |
| 108 | std::vector<VkCommandBuffer> worker_cmds; |
| 109 | |
| 110 | VkBuffer buf; |
| 111 | uint8_t *base; |
| 112 | VkDescriptorSet desc_set; |
| 113 | }; |
| 114 | |
| 115 | // called by the constructor |
| 116 | void init_workers(); |
| 117 | |
| 118 | bool multithread_; |
| 119 | bool use_push_constants_; |
| 120 | |
| 121 | // called mostly by on_key |
| 122 | void update_camera(); |
| 123 | |
| 124 | bool sim_paused_; |
| 125 | Simulation sim_; |
| 126 | Camera camera_; |
| 127 | |
| 128 | std::vector<std::unique_ptr<Worker>> workers_; |
| 129 | |
| 130 | // called by attach_shell |
| 131 | void create_render_pass(); |
| 132 | void create_shader_modules(); |
| 133 | void create_descriptor_set_layout(); |
| 134 | void create_pipeline_layout(); |
| 135 | void create_pipeline(); |
| 136 | |
| 137 | void create_frame_data(int count); |
| 138 | void destroy_frame_data(); |
| 139 | void create_fences(); |
| 140 | void create_command_buffers(); |
| 141 | void create_buffers(); |
| 142 | void create_buffer_memory(); |
| 143 | void create_descriptor_sets(); |
| 144 | |
| 145 | VkPhysicalDevice physical_dev_; |
| 146 | VkDevice dev_; |
| 147 | VkQueue queue_; |
| 148 | uint32_t queue_family_; |
| 149 | VkFormat format_; |
| 150 | |
| 151 | VkPhysicalDeviceProperties physical_dev_props_; |
| 152 | std::vector<VkMemoryPropertyFlags> mem_flags_; |
| 153 | |
| 154 | const Meshes *meshes_; |
| 155 | |
| 156 | VkRenderPass render_pass_; |
| 157 | VkShaderModule vs_; |
| 158 | VkShaderModule fs_; |
| 159 | VkDescriptorSetLayout desc_set_layout_; |
| 160 | VkPipelineLayout pipeline_layout_; |
| 161 | VkPipeline pipeline_; |
| 162 | |
| 163 | VkCommandPool primary_cmd_pool_; |
| 164 | std::vector<VkCommandPool> worker_cmd_pools_; |
| 165 | VkDescriptorPool desc_pool_; |
| 166 | VkDeviceMemory frame_data_mem_; |
| 167 | std::vector<FrameData> frame_data_; |
| 168 | int frame_data_index_; |
| 169 | |
| 170 | VkClearValue render_pass_clear_value_; |
| 171 | VkRenderPassBeginInfo render_pass_begin_info_; |
| 172 | |
| 173 | VkCommandBufferBeginInfo primary_cmd_begin_info_; |
| 174 | VkPipelineStageFlags primary_cmd_submit_wait_stages_; |
| 175 | VkSubmitInfo primary_cmd_submit_info_; |
| 176 | |
| 177 | // called by attach_swapchain |
| 178 | void prepare_viewport(const VkExtent2D &extent); |
| 179 | void prepare_framebuffers(VkSwapchainKHR swapchain); |
| 180 | |
| 181 | VkExtent2D extent_; |
| 182 | VkViewport viewport_; |
| 183 | VkRect2D scissor_; |
| 184 | |
| 185 | std::vector<VkImage> images_; |
| 186 | std::vector<VkImageView> image_views_; |
| 187 | std::vector<VkFramebuffer> framebuffers_; |
| 188 | |
| 189 | // called by workers |
| 190 | void update_simulation(const Worker &worker); |
| 191 | void draw_object(const Simulation::Object &obj, FrameData &data, VkCommandBuffer cmd) const; |
| 192 | void draw_objects(Worker &worker); |
| 193 | }; |
| 194 | |
| 195 | #endif // HOLOGRAM_H |