From f1f1576543bb4e0f3b9bc4cd0ba4a12a70546c3c Mon Sep 17 00:00:00 2001 From: Frederico Linhares Date: Tue, 30 Aug 2022 17:45:40 -0300 Subject: feat Create 2d graphics pipeline --- src/vk/renderer.cpp | 245 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 245 insertions(+) create mode 100644 src/vk/renderer.cpp (limited to 'src/vk/renderer.cpp') diff --git a/src/vk/renderer.cpp b/src/vk/renderer.cpp new file mode 100644 index 0000000..33a4bf7 --- /dev/null +++ b/src/vk/renderer.cpp @@ -0,0 +1,245 @@ +/* + * Copyright 2022 Frederico de Oliveira Linhares + * + * 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 "renderer.hpp" + +#include "../core.hpp" + +namespace +{ + +void +load_frame_sync(void *obj) +{ + auto self = static_cast(obj); + + self->image_available_semaphores.resize(self->max_frames_in_flight); + self->render_finished_semaphores.resize(self->max_frames_in_flight); + self->in_flight_fences.resize(self->max_frames_in_flight); + + VkSemaphoreCreateInfo semaphore_info = {}; + semaphore_info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO; + semaphore_info.pNext = nullptr; + semaphore_info.flags = 0; + + VkFenceCreateInfo fence_info = {}; + fence_info.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO; + fence_info.pNext = nullptr; + fence_info.flags = VK_FENCE_CREATE_SIGNALED_BIT; + + // FIXME: if this loop fails, it will not destroy the semaphores. + for(auto i{0}; i < self->max_frames_in_flight; i++) + { + if(vkCreateSemaphore( + cg_core.vk_device_with_swapchain->device, &semaphore_info, + nullptr, &self->image_available_semaphores[i]) != VK_SUCCESS || + vkCreateSemaphore( + cg_core.vk_device_with_swapchain->device, &semaphore_info, + nullptr, &self->render_finished_semaphores[i]) != VK_SUCCESS || + vkCreateFence(cg_core.vk_device_with_swapchain->device, &fence_info, + nullptr, &self->in_flight_fences[i]) != VK_SUCCESS) + throw CommandError{"Failed to create semaphores."}; + } +} + +void +unload_frame_sync(void *obj) +{ + auto self = static_cast(obj); + + vkDeviceWaitIdle(cg_core.vk_device_with_swapchain->device); + + for(auto i{0}; i < self->max_frames_in_flight; i++) + { + vkDestroySemaphore(cg_core.vk_device_with_swapchain->device, + self->render_finished_semaphores[i], nullptr); + vkDestroySemaphore(cg_core.vk_device_with_swapchain->device, + self->image_available_semaphores[i], nullptr); + vkDestroyFence(cg_core.vk_device_with_swapchain->device, + self->in_flight_fences[i], nullptr); + } +} + +void +load_queue_family(void *obj) +{ + auto self = static_cast(obj); + + self->queue_family = + cg_core.vk_device_with_swapchain->get_queue_family_with_presentation(); +} + +void +load_command_pool(void *obj) +{ + auto self = static_cast(obj); + + VkCommandPoolCreateInfo create_info{}; + create_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO; + create_info.pNext = nullptr; + create_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT; + create_info.queueFamilyIndex = self->queue_family->family_index; + + vkCreateCommandPool( + self->queue_family->device->device, &create_info, nullptr, + &self->command_pool); +} + +void +unload_command_pool(void *obj) +{ + auto self = static_cast(obj); + + vkWaitForFences(cg_core.vk_device_with_swapchain->device, 2, + self->in_flight_fences.data(), VK_TRUE, + std::numeric_limits::max()); + vkDestroyCommandPool( + self->queue_family->device->device, self->command_pool, nullptr); +} + +void +load_draw_command_buffer(void *obj) +{ + auto self = static_cast(obj); + + // FIXME: 3 is a magical number, triple buffering. + self->draw_command_buffers.resize(3); + + VkCommandBufferAllocateInfo allocate_info{}; + allocate_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO; + allocate_info.pNext = nullptr; + allocate_info.commandPool = self->command_pool; + allocate_info.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY; + allocate_info.commandBufferCount = self->draw_command_buffers.size(); + + if(vkAllocateCommandBuffers( + self->queue_family->device->device, &allocate_info, + self->draw_command_buffers.data()) != VK_SUCCESS) + throw CommandError{"Vulkan draw command buffers could not be allocated."}; +} + +const CommandChain loader{ + {&load_frame_sync, &unload_frame_sync}, + {&load_queue_family, nullptr}, + {&load_command_pool, &unload_command_pool}, + {&load_draw_command_buffer, nullptr} +}; + +} + +namespace VK +{ + +Renderer::Renderer(): + current_frame{0} +{ + loader.execute(this); +} + +Renderer::~Renderer() +{ + loader.revert(this); +} + +void +Renderer::draw() +{ + vkWaitForFences(cg_core.vk_device_with_swapchain->device, 1, + &this->in_flight_fences[this->current_frame], VK_TRUE, + std::numeric_limits::max()); + vkResetFences(cg_core.vk_device_with_swapchain->device, 1, + &this->in_flight_fences[this->current_frame]); + + uint32_t image_index; + vkAcquireNextImageKHR( + cg_core.vk_device_with_swapchain->device, cg_core.vk_swapchain->swapchain, + std::numeric_limits::max(), + this->image_available_semaphores[this->current_frame], + VK_NULL_HANDLE, &image_index); + + VkCommandBuffer draw_command_buffer = + this->draw_command_buffers[this->current_frame]; + vkResetCommandBuffer(draw_command_buffer, 0); + + auto next_frame = this->current_frame + 1; + if(next_frame == this->max_frames_in_flight) next_frame = 0; + + // Begin command buffer. + { + VkCommandBufferBeginInfo begin_info{}; + begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO; + begin_info.flags = 0; + begin_info.pInheritanceInfo = nullptr; + if (vkBeginCommandBuffer(draw_command_buffer, &begin_info) != VK_SUCCESS) + throw std::runtime_error{"Failed to beggin draw command buffer."}; + } + + cg_core.vk_graphics_pipeline_3d->draw( + draw_command_buffer, current_frame, next_frame, image_index); + cg_core.vk_graphics_pipeline_2d->draw( + draw_command_buffer, current_frame, next_frame, image_index); + + // End command buffer. + if(vkEndCommandBuffer(draw_command_buffer) != VK_SUCCESS) + throw std::runtime_error{"Failed to end draw command buffer."}; + + // Submit drawing command. + { + auto queue{this->queue_family->get_queue()}; + + VkSemaphore wait_semaphores[]{ + this->image_available_semaphores[this->current_frame]}; + VkPipelineStageFlags wait_stages[] = + {VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT}; + VkSemaphore signal_semaphores[]{ + this->render_finished_semaphores[this->current_frame]}; + + VkSubmitInfo submit_info{}; + submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; + submit_info.pNext = nullptr; + submit_info.waitSemaphoreCount = 1; + submit_info.pWaitSemaphores = wait_semaphores; + submit_info.pWaitDstStageMask = wait_stages; + submit_info.commandBufferCount = 1; + submit_info.pCommandBuffers = &draw_command_buffer; + submit_info.signalSemaphoreCount = 1; + submit_info.pSignalSemaphores = signal_semaphores; + + if(vkQueueSubmit( + queue.queue, 1, &submit_info, + this->in_flight_fences[this->current_frame]) != VK_SUCCESS) + throw std::runtime_error{"Failed to submit draw command buffer."}; + + VkSwapchainKHR swap_chains[]{cg_core.vk_swapchain->swapchain}; + + VkPresentInfoKHR present_info{}; + present_info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; + present_info.pNext = nullptr; + present_info.waitSemaphoreCount = 1; + present_info.pWaitSemaphores = signal_semaphores; + present_info.swapchainCount = 1; + present_info.pSwapchains = swap_chains; + present_info.pImageIndices = &image_index; + present_info.pResults = nullptr; + + vkQueuePresentKHR(queue.queue, &present_info); + } + + // Prepare for the next frame. + this->current_frame = next_frame; +} + +} -- cgit v1.2.3