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implement basic per frame uniform variables

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niki
2022-03-22 14:31:50 +01:00
parent 157c8f8a20
commit 158052c52c
7 changed files with 133 additions and 6 deletions
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src/modules/graphics/vulkan/Graphics.cpp
+101 -1
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@@ -67,10 +67,14 @@ namespace love {
createImageViews();
createRenderPass();
createDefaultShaders();
createDescriptorSetLayout();
createGraphicsPipeline();
createFramebuffers();
createCommandPool();
createCommandBuffers();
createUniformBuffers();
createDescriptorPool();
createDescriptorSets();
createSyncObjects();
startRecordingGraphicsCommands();
}
@@ -227,6 +231,9 @@ namespace love {
buffers.push_back((VkBuffer)cmd.buffers->info[0].buffer->getHandle());
offsets.push_back((VkDeviceSize) 0);
prepareDraw(currentFrame);
vkCmdBindDescriptorSets(commandBuffers.at(imageIndex), VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSets.at(currentFrame), 0, nullptr);
vkCmdBindVertexBuffers(commandBuffers.at(imageIndex), 0, 1, buffers.data(), offsets.data());
vkCmdBindIndexBuffer(commandBuffers.at(imageIndex), (VkBuffer) cmd.indexBuffer->getHandle(), 0, VK_INDEX_TYPE_UINT16);
vkCmdDrawIndexed(commandBuffers.at(imageIndex), static_cast<uint32_t>(cmd.indexCount), 1, 0, 0, 0);
@@ -239,6 +246,18 @@ namespace love {
// END IMPLEMENTATION OVERRIDDEN FUNCTIONS
void Graphics::prepareDraw(uint32_t currentImage) {
auto& buffer = uniformBuffers.at(currentImage);
Shader::UniformBufferObject ubo{};
ubo.windowWidth = static_cast<float>(swapChainExtent.width);
ubo.windowHeight = static_cast<float>(swapChainExtent.height);
auto mappedInfo = buffer->map(0);
memcpy(mappedInfo.data, &ubo, sizeof(ubo));
buffer->unmap(0);
}
void Graphics::createVulkanInstance() {
if (enableValidationLayers && !checkValidationSupport()) {
throw love::Exception("validation layers requested, but not available");
@@ -699,6 +718,79 @@ namespace love {
}
}
void Graphics::createDescriptorSetLayout() {
VkDescriptorSetLayoutBinding uboLayoutBinding{};
uboLayoutBinding.binding = 0;
uboLayoutBinding.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
uboLayoutBinding.descriptorCount = 1;
uboLayoutBinding.stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
VkDescriptorSetLayoutCreateInfo layoutInfo{};
layoutInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
layoutInfo.bindingCount = 1;
layoutInfo.pBindings = &uboLayoutBinding;
if (vkCreateDescriptorSetLayout(device, &layoutInfo, nullptr, &descriptorSetLayout) != VK_SUCCESS) {
throw love::Exception("failed to create descriptor set layout");
}
}
void Graphics::createUniformBuffers() {
VkDeviceSize bufferSize = sizeof(Shader::UniformBufferObject);
for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) {
uniformBuffers.push_back(std::make_unique<StreamBuffer>(device, physicalDevice, BUFFERUSAGE_UNIFORM, bufferSize));
}
}
void Graphics::createDescriptorPool() {
VkDescriptorPoolSize poolSize{};
poolSize.type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
poolSize.descriptorCount = static_cast<uint32_t>(MAX_FRAMES_IN_FLIGHT);
VkDescriptorPoolCreateInfo poolInfo{};
poolInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
poolInfo.poolSizeCount = 1;
poolInfo.pPoolSizes = &poolSize;
poolInfo.maxSets = static_cast<uint32_t>(MAX_FRAMES_IN_FLIGHT);
if (vkCreateDescriptorPool(device, &poolInfo, nullptr, &descriptorPool) != VK_SUCCESS) {
throw love::Exception("failed to create descriptor pool");
}
}
void Graphics::createDescriptorSets() {
std::vector<VkDescriptorSetLayout> layouts(MAX_FRAMES_IN_FLIGHT, descriptorSetLayout);
VkDescriptorSetAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
allocInfo.descriptorPool = descriptorPool;
allocInfo.descriptorSetCount = static_cast<uint32_t>(MAX_FRAMES_IN_FLIGHT);
allocInfo.pSetLayouts = layouts.data();
descriptorSets.resize(MAX_FRAMES_IN_FLIGHT);
if (vkAllocateDescriptorSets(device, &allocInfo, descriptorSets.data()) != VK_SUCCESS) {
throw love::Exception("failed to allocate descriptor sets");
}
for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) {
VkDescriptorBufferInfo bufferInfo{};
bufferInfo.buffer = (VkBuffer) uniformBuffers.at(i)->getHandle();
bufferInfo.offset = 0;
bufferInfo.range = sizeof(Shader::UniformBufferObject);
VkWriteDescriptorSet descriptorWrite{};
descriptorWrite.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptorWrite.dstSet = descriptorSets[i];
descriptorWrite.dstBinding = 0;
descriptorWrite.dstArrayElement = 0;
descriptorWrite.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptorWrite.descriptorCount = 1;
descriptorWrite.pBufferInfo = &bufferInfo;
vkUpdateDescriptorSets(device, 1, &descriptorWrite, 0, nullptr);
}
}
void Graphics::createGraphicsPipeline() {
auto shader = reinterpret_cast<love::graphics::vulkan::Shader*>(love::graphics::vulkan::Shader::standardShaders[Shader::STANDARD_DEFAULT]);
auto shaderStages = shader->getShaderStages();
@@ -786,7 +878,8 @@ namespace love {
VkPipelineLayoutCreateInfo pipelineLayoutInfo{};
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutInfo.setLayoutCount = 0;
pipelineLayoutInfo.setLayoutCount = 1;
pipelineLayoutInfo.pSetLayouts = &descriptorSetLayout;
pipelineLayoutInfo.pushConstantRangeCount = 0;
if (vkCreatePipelineLayout(device, &pipelineLayoutInfo, nullptr, &pipelineLayout) != VK_SUCCESS) {
@@ -892,6 +985,9 @@ namespace love {
cleanupSwapChain();
vkDestroyDescriptorPool(device, descriptorPool, nullptr);
vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
vkDestroyCommandPool(device, commandPool, nullptr);
vkDestroyDevice(device, nullptr);
vkDestroySurfaceKHR(instance, surface, nullptr);
@@ -915,6 +1011,7 @@ namespace love {
vkDestroySemaphore(device, imageAvailableSemaphores[i], nullptr);
vkDestroyFence(device, inFlightFences[i], nullptr);
}
uniformBuffers.clear();
}
void Graphics::recreateSwapChain() {
@@ -927,6 +1024,9 @@ namespace love {
createRenderPass();
createGraphicsPipeline();
createFramebuffers();
createUniformBuffers();
createDescriptorPool();
createDescriptorSets();
createCommandBuffers();
createSyncObjects();
startRecordingGraphicsCommands();