155 lines
4.2 KiB
C++
155 lines
4.2 KiB
C++
/*
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* Copyright (C) 2016 Google, Inc.
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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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#ifndef SHELL_H
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#define SHELL_H
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#include <queue>
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#include <vector>
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#include <stdexcept>
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#include <vulkan/vulkan.h>
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#include "Game.h"
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class Game;
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class Shell {
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public:
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Shell(const Shell &sh) = delete;
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Shell &operator=(const Shell &sh) = delete;
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virtual ~Shell() {}
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struct BackBuffer {
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uint32_t image_index;
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VkSemaphore acquire_semaphore;
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VkSemaphore render_semaphore;
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// signaled when this struct is ready for reuse
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VkFence present_fence;
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};
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struct Context {
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VkInstance instance;
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VkDebugReportCallbackEXT debug_report;
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VkPhysicalDevice physical_dev;
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uint32_t game_queue_family;
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uint32_t present_queue_family;
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VkDevice dev;
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VkQueue game_queue;
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VkQueue present_queue;
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std::queue<BackBuffer> back_buffers;
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VkSurfaceKHR surface;
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VkSurfaceFormatKHR format;
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VkSwapchainKHR swapchain;
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VkExtent2D extent;
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BackBuffer acquired_back_buffer;
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};
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const Context &context() const { return ctx_; }
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enum LogPriority {
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LOG_DEBUG,
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LOG_INFO,
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LOG_WARN,
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LOG_ERR,
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};
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virtual void log(LogPriority priority, const char *msg);
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virtual void run() = 0;
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virtual void quit() = 0;
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protected:
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Shell(Game &game);
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void init_vk();
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void cleanup_vk();
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void create_context();
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void destroy_context();
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void resize_swapchain(uint32_t width_hint, uint32_t height_hint);
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void add_game_time(float time);
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void acquire_back_buffer();
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void present_back_buffer();
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Game &game_;
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const Game::Settings &settings_;
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std::vector<const char *> instance_layers_;
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std::vector<const char *> instance_extensions_;
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std::vector<const char *> device_extensions_;
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private:
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bool debug_report_callback(VkDebugReportFlagsEXT flags,
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VkDebugReportObjectTypeEXT obj_type,
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uint64_t object,
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size_t location,
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int32_t msg_code,
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const char *layer_prefix,
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const char *msg);
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static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report_callback(
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VkDebugReportFlagsEXT flags,
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VkDebugReportObjectTypeEXT obj_type,
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uint64_t object,
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size_t location,
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int32_t msg_code,
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const char *layer_prefix,
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const char *msg,
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void *user_data)
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{
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Shell *shell = reinterpret_cast<Shell *>(user_data);
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return shell->debug_report_callback(flags, obj_type, object, location, msg_code, layer_prefix, msg);
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}
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void assert_all_instance_layers() const;
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void assert_all_instance_extensions() const;
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bool has_all_device_layers(VkPhysicalDevice phy) const;
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bool has_all_device_extensions(VkPhysicalDevice phy) const;
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// called by init_vk
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virtual PFN_vkGetInstanceProcAddr load_vk() = 0;
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virtual bool can_present(VkPhysicalDevice phy, uint32_t queue_family) = 0;
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void init_instance();
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void init_debug_report();
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void init_physical_dev();
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// called by create_context
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void create_dev();
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void create_back_buffers();
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void destroy_back_buffers();
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virtual VkSurfaceKHR create_surface(VkInstance instance) = 0;
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void create_swapchain();
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void destroy_swapchain();
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void fake_present();
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Context ctx_;
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const float game_tick_;
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float game_time_;
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};
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#endif // SHELL_H
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