framebuffers
This commit is contained in:
parent
1c3dac6596
commit
cd28277aaf
115
main.cpp
115
main.cpp
@ -67,12 +67,15 @@ private:
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VkExtent2D swapChainExtent;
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VkExtent2D swapChainExtent;
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std::vector<VkImage> swapChainImages;
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std::vector<VkImage> swapChainImages;
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std::vector<VkImageView> swapChainImageViews;
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std::vector<VkImageView> swapChainImageViews;
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std::vector<VkFramebuffer> swapChainFramebuffers;
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const uint32_t WIDTH = 800;
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const uint32_t WIDTH = 800;
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const uint32_t HEIGHT = 600;
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const uint32_t HEIGHT = 600;
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VkCommandPool commandPool;
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VkCommandBuffer commandBuffer;
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VkRenderPass renderPass;
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VkRenderPass renderPass;
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VkPipelineLayout pipelineLayout;
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VkPipelineLayout pipelineLayout;
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VkPipeline graphicsPipeline;
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VkPipeline graphicsPipeline;
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@ -100,6 +103,111 @@ private:
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createRenderPass();
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createRenderPass();
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createGraphicsPipeline();
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createGraphicsPipeline();
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createFramebuffers();
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createCommandPool();
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createCommandBuffer();
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}
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void recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t imageIndex) {
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VkCommandBufferBeginInfo beginInfo{};
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beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
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beginInfo.flags = 0; // Optional
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beginInfo.pInheritanceInfo = nullptr; // Optional
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if (vkBeginCommandBuffer(commandBuffer, &beginInfo) != VK_SUCCESS) {
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throw std::runtime_error("failed to begin recording command buffer!");
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}
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VkRenderPassBeginInfo renderPassInfo{};
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renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
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renderPassInfo.renderPass = renderPass;
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renderPassInfo.framebuffer = swapChainFramebuffers[imageIndex];
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renderPassInfo.renderArea.offset = {0, 0};
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renderPassInfo.renderArea.extent = swapChainExtent;
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VkClearValue clearColor = {{{0.0f, 0.0f, 0.0f, 1.0f}}};
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renderPassInfo.clearValueCount = 1;
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renderPassInfo.pClearValues = &clearColor;
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vkCmdBeginRenderPass(commandBuffer, &renderPassInfo, VK_SUBPASS_CONTENTS_INLINE);
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vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
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VkViewport viewport{};
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viewport.x = 0.0f;
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viewport.y = 0.0f;
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viewport.width = static_cast<float>(swapChainExtent.width);
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viewport.height = static_cast<float>(swapChainExtent.height);
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viewport.minDepth = 0.0f;
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viewport.maxDepth = 1.0f;
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vkCmdSetViewport(commandBuffer, 0, 1, &viewport);
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VkRect2D scissor{};
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scissor.offset = {0, 0};
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scissor.extent = swapChainExtent;
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vkCmdSetScissor(commandBuffer, 0, 1, &scissor);
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vkCmdDraw(commandBuffer, 3, 1, 0, 0);
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vkCmdEndRenderPass(commandBuffer);
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if (vkEndCommandBuffer(commandBuffer) != VK_SUCCESS) {
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throw std::runtime_error("failed to record command buffer!");
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}
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}
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void createCommandPool() {
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QueueFamilyIndices queueFamilyIndices = findQueueFamilies(physicalDevice);
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VkCommandPoolCreateInfo poolInfo{};
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poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
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poolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
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poolInfo.queueFamilyIndex = queueFamilyIndices.graphicsFamily.value();
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VkResult result = vkCreateCommandPool(device, &poolInfo, nullptr, &commandPool);
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if (result != VK_SUCCESS) {
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std::cout << "error creating command pool: " << result << std::endl;
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throw std::runtime_error("failed to create command pool!");
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}
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}
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void createCommandBuffer() {
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VkCommandBufferAllocateInfo allocInfo{};
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allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
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allocInfo.commandPool = commandPool;
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allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
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allocInfo.commandBufferCount = 1;
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VkResult result = vkAllocateCommandBuffers(device, &allocInfo, &commandBuffer);
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if (result != VK_SUCCESS) {
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std::cout << "error allocating command buffer: " << result << std::endl;
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throw std::runtime_error("failed to allocate command buffers!");
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}
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}
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void createFramebuffers() {
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swapChainFramebuffers.resize(swapChainImageViews.size());
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for (size_t i = 0; i < swapChainImageViews.size(); i++) {
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VkImageView attachments[] = {
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swapChainImageViews[i]
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};
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VkFramebufferCreateInfo framebufferInfo{};
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framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
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framebufferInfo.renderPass = renderPass;
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framebufferInfo.attachmentCount = 1;
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framebufferInfo.pAttachments = attachments;
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framebufferInfo.width = swapChainExtent.width;
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framebufferInfo.height = swapChainExtent.height;
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framebufferInfo.layers = 1;
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VkResult result = vkCreateFramebuffer(device, &framebufferInfo, nullptr, &swapChainFramebuffers[i]);
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if (result != VK_SUCCESS) {
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std::cout << "error creating framebuffer: " << result << std::endl;
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throw std::runtime_error("failed to create framebuffer");
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}
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}
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}
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}
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void createRenderPass() {
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void createRenderPass() {
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@ -708,6 +816,11 @@ private:
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}
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}
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void cleanup() {
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void cleanup() {
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vkDestroyCommandPool(device, commandPool, nullptr);
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for (auto framebuffer : swapChainFramebuffers) {
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vkDestroyFramebuffer(device, framebuffer, nullptr);
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}
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vkDestroyPipeline(device, graphicsPipeline, nullptr);
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vkDestroyPipeline(device, graphicsPipeline, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyRenderPass(device, renderPass, nullptr);
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vkDestroyRenderPass(device, renderPass, nullptr);
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