86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
#include "simple_render_system.hpp"
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#include <stdexcept>
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#include <array>
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#define GLM_FORCE_RADIANS
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#define GLM_FORCE_DEPTH_ZERO_TO_ONE
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#include <glm/glm.hpp>
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#include <glm/gtc/constants.hpp>
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namespace cve {
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struct SimplePushConstantData{
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glm::mat2 transform{1.f}; // Identity matrix
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glm::vec2 offset;
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alignas(16) glm::vec3 color;
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};
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SimpleRenderSystem::SimpleRenderSystem(CveDevice& device, VkRenderPass renderPass):
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cveDevice{device} {
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createPipelineLayout();
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createPipeline(renderPass);
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}
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SimpleRenderSystem::~SimpleRenderSystem() {
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vkDestroyPipelineLayout(cveDevice.device(), pipelineLayout, nullptr);
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}
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void SimpleRenderSystem::createPipelineLayout() {
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VkPushConstantRange pushConstantRange{};
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pushConstantRange.stageFlags = VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT;
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pushConstantRange.offset = 0;
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pushConstantRange.size = sizeof(SimplePushConstantData);
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VkPipelineLayoutCreateInfo pipelineLayoutInfo{};
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pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
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pipelineLayoutInfo.setLayoutCount = 0;
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pipelineLayoutInfo.pSetLayouts = nullptr;
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pipelineLayoutInfo.pushConstantRangeCount = 1;
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pipelineLayoutInfo.pPushConstantRanges = &pushConstantRange;
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if (vkCreatePipelineLayout(cveDevice.device(), &pipelineLayoutInfo, nullptr, &pipelineLayout) !=
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VK_SUCCESS) {
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throw std::runtime_error("Failed to create pipeline layout");
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}
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}
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void SimpleRenderSystem::createPipeline(VkRenderPass renderPass) {
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assert(pipelineLayout != nullptr && "Cannot create pipeline before pipeline layout");
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PipelineConfigInfo pipelineConfig{};
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CvePipeline::defaultPipelineConfigInfo(pipelineConfig);
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pipelineConfig.renderPass = renderPass;
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pipelineConfig.pipelineLayout = pipelineLayout;
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cvePipeline = std::make_unique<CvePipeline>(
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cveDevice,
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"shaders/simple_shader.vert.spv",
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"shaders/simple_shader.frag.spv",
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pipelineConfig
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);
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}
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void SimpleRenderSystem::renderGameObjects(VkCommandBuffer commandBuffer, std::vector<CveGameObject> &gameObjects) {
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cvePipeline->bind(commandBuffer);
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for (auto& obj: gameObjects) {
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obj.transform2d.rotation = glm::mod(obj.transform2d.rotation + 0.001f, glm::two_pi<float>());
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SimplePushConstantData push{};
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push.offset = obj.transform2d.translation;
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push.color = obj.color;
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push.transform = obj.transform2d.mat2();
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vkCmdPushConstants(
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commandBuffer,
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pipelineLayout,
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VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT,
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0,
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sizeof(SimplePushConstantData),
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&push
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);
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obj.model->bind(commandBuffer);
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obj.model->draw(commandBuffer);
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}
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}
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}
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