void op3d::Engine::initVulkan()
{
instance.create();
callback.setup(instance);
surface.create(instance, window);
physicalDevice.create(instance, surface);
device.create(physicalDevice, surface, graphicsQueue, presentQueue);
swapChain.create(device, surface, physicalDevice, window);
swapChain.createImageViews(device, swapChainImageViews);
createRenderPass();
createDescriptorSetLayout();
createGraphicsPipeline();
commandBufferManager.createCommandPool(physicalDevice, surface);
createDepthResources();
createFramebuffers();
createTextureImage();
createTextureImageView();
createTextureSampler();
createVertexBuffer();
createIndexBuffer();
createUniformBuffer();
descriptorPool.createPool();
descriptorSet.createSet(uniformBuffer, textureImageView, textureSampler, descriptorSetLayout, descriptorPool, device);
createCommandBuffers();
createSemaphores();
}
void initVulkan() {
createInstance();
setupDebugCallback();
createSurface();
pickPhysicalDevice();
createLogicalDevice();
createSwapChain();
createImageViews();
createRenderPass();
createGraphicsPipeline();
}
void op3d::Engine::recreateSwapChain()
{
vkDeviceWaitIdle(device);
swapChain.create(device, surface, physicalDevice, window);
swapChain.createImageViews(device, swapChainImageViews);
createRenderPass();
createGraphicsPipeline();
createDepthResources();
createFramebuffers();
createCommandBuffers();
}
void SparseShaderIntrinsicsInstanceSampledBase::recordCommands (const VkCommandBuffer commandBuffer,
const VkImageCreateInfo& imageSparseInfo,
const VkImage imageSparse,
const VkImage imageTexels,
const VkImage imageResidency)
{
const InstanceInterface& instance = m_context.getInstanceInterface();
const DeviceInterface& deviceInterface = getDeviceInterface();
const VkPhysicalDevice physicalDevice = m_context.getPhysicalDevice();
const VkPhysicalDeviceProperties deviceProperties = getPhysicalDeviceProperties(instance, physicalDevice);
if (imageSparseInfo.extent.width > deviceProperties.limits.maxFramebufferWidth ||
imageSparseInfo.extent.height > deviceProperties.limits.maxFramebufferHeight ||
imageSparseInfo.arrayLayers > deviceProperties.limits.maxFramebufferLayers)
{
TCU_THROW(NotSupportedError, "Image size exceeds allowed framebuffer dimensions");
}
// Check if device supports image format for sampled images
if (!checkImageFormatFeatureSupport(instance, physicalDevice, imageSparseInfo.format, VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))
TCU_THROW(NotSupportedError, "Device does not support image format for sampled images");
// Check if device supports image format for color attachment
if (!checkImageFormatFeatureSupport(instance, physicalDevice, imageSparseInfo.format, VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
TCU_THROW(NotSupportedError, "Device does not support image format for color attachment");
// Make sure device supports VK_FORMAT_R32_UINT format for color attachment
if (!checkImageFormatFeatureSupport(instance, physicalDevice, mapTextureFormat(m_residencyFormat), VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
TCU_THROW(TestError, "Device does not support VK_FORMAT_R32_UINT format for color attachment");
// Create buffer storing vertex data
std::vector<tcu::Vec2> vertexData;
vertexData.push_back(tcu::Vec2(-1.0f,-1.0f));
vertexData.push_back(tcu::Vec2( 0.0f, 0.0f));
vertexData.push_back(tcu::Vec2(-1.0f, 1.0f));
vertexData.push_back(tcu::Vec2( 0.0f, 1.0f));
vertexData.push_back(tcu::Vec2( 1.0f,-1.0f));
vertexData.push_back(tcu::Vec2( 1.0f, 0.0f));
vertexData.push_back(tcu::Vec2( 1.0f, 1.0f));
vertexData.push_back(tcu::Vec2( 1.0f, 1.0f));
const VkDeviceSize vertexDataSizeInBytes = sizeInBytes(vertexData);
const VkBufferCreateInfo vertexBufferCreateInfo = makeBufferCreateInfo(vertexDataSizeInBytes, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT);
m_vertexBuffer = createBuffer(deviceInterface, getDevice(), &vertexBufferCreateInfo);
m_vertexBufferAlloc = bindBuffer(deviceInterface, getDevice(), getAllocator(), *m_vertexBuffer, MemoryRequirement::HostVisible);
deMemcpy(m_vertexBufferAlloc->getHostPtr(), &vertexData[0], static_cast<std::size_t>(vertexDataSizeInBytes));
flushMappedMemoryRange(deviceInterface, getDevice(), m_vertexBufferAlloc->getMemory(), m_vertexBufferAlloc->getOffset(), vertexDataSizeInBytes);
// Create render pass
const VkAttachmentDescription texelsAttachmentDescription =
{
(VkAttachmentDescriptionFlags)0, // VkAttachmentDescriptionFlags flags;
imageSparseInfo.format, // VkFormat format;
VK_SAMPLE_COUNT_1_BIT, // VkSampleCountFlagBits samples;
VK_ATTACHMENT_LOAD_OP_CLEAR, // VkAttachmentLoadOp loadOp;
VK_ATTACHMENT_STORE_OP_STORE, // VkAttachmentStoreOp storeOp;
VK_ATTACHMENT_LOAD_OP_DONT_CARE, // VkAttachmentLoadOp stencilLoadOp;
VK_ATTACHMENT_STORE_OP_DONT_CARE, // VkAttachmentStoreOp stencilStoreOp;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, // VkImageLayout initialLayout;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL // VkImageLayout finalLayout;
};
const VkAttachmentDescription residencyAttachmentDescription =
{
(VkAttachmentDescriptionFlags)0, // VkAttachmentDescriptionFlags flags;
mapTextureFormat(m_residencyFormat), // VkFormat format;
VK_SAMPLE_COUNT_1_BIT, // VkSampleCountFlagBits samples;
VK_ATTACHMENT_LOAD_OP_CLEAR, // VkAttachmentLoadOp loadOp;
VK_ATTACHMENT_STORE_OP_STORE, // VkAttachmentStoreOp storeOp;
VK_ATTACHMENT_LOAD_OP_DONT_CARE, // VkAttachmentLoadOp stencilLoadOp;
VK_ATTACHMENT_STORE_OP_DONT_CARE, // VkAttachmentStoreOp stencilStoreOp;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, // VkImageLayout initialLayout;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL // VkImageLayout finalLayout;
};
const VkAttachmentDescription colorAttachmentsDescription[] = { texelsAttachmentDescription, residencyAttachmentDescription };
const VkAttachmentReference texelsAttachmentReference =
{
0u, // deUint32 attachment;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL // VkImageLayout layout;
};
const VkAttachmentReference residencyAttachmentReference =
{
1u, // deUint32 attachment;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL // VkImageLayout layout;
};
const VkAttachmentReference colorAttachmentsReference[] = { texelsAttachmentReference, residencyAttachmentReference };
const VkAttachmentReference depthAttachmentReference =
{
VK_ATTACHMENT_UNUSED, // deUint32 attachment;
VK_IMAGE_LAYOUT_UNDEFINED // VkImageLayout layout;
};
const VkSubpassDescription subpassDescription =
{
(VkSubpassDescriptionFlags)0, // VkSubpassDescriptionFlags flags;
VK_PIPELINE_BIND_POINT_GRAPHICS, // VkPipelineBindPoint pipelineBindPoint;
0u, // deUint32 inputAttachmentCount;
DE_NULL, // const VkAttachmentReference* pInputAttachments;
2u, // deUint32 colorAttachmentCount;
colorAttachmentsReference, // const VkAttachmentReference* pColorAttachments;
DE_NULL, // const VkAttachmentReference* pResolveAttachments;
&depthAttachmentReference, // const VkAttachmentReference* pDepthStencilAttachment;
0u, // deUint32 preserveAttachmentCount;
DE_NULL // const deUint32* pPreserveAttachments;
};
const VkRenderPassCreateInfo renderPassInfo =
{
VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkRenderPassCreateFlags)0, // VkRenderPassCreateFlags flags;
2u, // deUint32 attachmentCount;
colorAttachmentsDescription, // const VkAttachmentDescription* pAttachments;
1u, // deUint32 subpassCount;
&subpassDescription, // const VkSubpassDescription* pSubpasses;
0u, // deUint32 dependencyCount;
DE_NULL // const VkSubpassDependency* pDependencies;
};
m_renderPass = createRenderPass(deviceInterface, getDevice(), &renderPassInfo);
// Create descriptor set layout
DescriptorSetLayoutBuilder descriptorLayerBuilder;
descriptorLayerBuilder.addSingleBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT);
const Unique<VkDescriptorSetLayout> descriptorSetLayout(descriptorLayerBuilder.build(deviceInterface, getDevice()));
// Create descriptor pool
DescriptorPoolBuilder descriptorPoolBuilder;
descriptorPoolBuilder.addType(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, imageSparseInfo.mipLevels);
descriptorPool = descriptorPoolBuilder.build(deviceInterface, getDevice(), VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT, imageSparseInfo.mipLevels);
// Create sampler object
const tcu::Sampler samplerObject(tcu::Sampler::REPEAT_GL, tcu::Sampler::REPEAT_GL, tcu::Sampler::REPEAT_GL, tcu::Sampler::NEAREST_MIPMAP_NEAREST, tcu::Sampler::NEAREST);
const VkSamplerCreateInfo samplerCreateInfo = mapSampler(samplerObject, m_format);
m_sampler = createSampler(deviceInterface, getDevice(), &samplerCreateInfo);
struct PushConstants
{
deUint32 lod;
deUint32 padding; // padding needed to satisfy std430 rules
float lodWidth;
float lodHeight;
};
// Create pipeline layout
const VkPushConstantRange lodConstantRange =
{
VK_SHADER_STAGE_FRAGMENT_BIT, // VkShaderStageFlags stageFlags;
0u, // deUint32 offset;
sizeof(PushConstants), // deUint32 size;
};
const VkPipelineLayoutCreateInfo pipelineLayoutParams =
{
VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
0u, // VkPipelineLayoutCreateFlags flags;
1u, // deUint32 setLayoutCount;
&descriptorSetLayout.get(), // const VkDescriptorSetLayout* pSetLayouts;
1u, // deUint32 pushConstantRangeCount;
&lodConstantRange, // const VkPushConstantRange* pPushConstantRanges;
};
const Unique<VkPipelineLayout> pipelineLayout(createPipelineLayout(deviceInterface, getDevice(), &pipelineLayoutParams));
// Create graphics pipeline
{
Move<VkShaderModule> vertexModule = createShaderModule(deviceInterface, getDevice(), m_context.getBinaryCollection().get("vertex_shader"), (VkShaderModuleCreateFlags)0);
Move<VkShaderModule> fragmentModule = createShaderModule(deviceInterface, getDevice(), m_context.getBinaryCollection().get("fragment_shader"), (VkShaderModuleCreateFlags)0);
Move<VkShaderModule> geometryModule;
if (imageSparseInfo.arrayLayers > 1u)
{
requireFeatures(instance, physicalDevice, FEATURE_GEOMETRY_SHADER);
geometryModule = createShaderModule(deviceInterface, getDevice(), m_context.getBinaryCollection().get("geometry_shader"), (VkShaderModuleCreateFlags)0);
}
pipelines.push_back(makeVkSharedPtr(makeGraphicsPipeline(
deviceInterface, getDevice(), *pipelineLayout, *m_renderPass, *vertexModule, *fragmentModule, *geometryModule)));
}
const VkPipeline graphicsPipeline = **pipelines[0];
{
const VkImageSubresourceRange fullImageSubresourceRange = makeImageSubresourceRange(VK_IMAGE_ASPECT_COLOR_BIT, 0u, imageSparseInfo.mipLevels, 0u, imageSparseInfo.arrayLayers);
VkImageMemoryBarrier imageShaderAccessBarriers[3];
imageShaderAccessBarriers[0] = makeImageMemoryBarrier
(
VK_ACCESS_TRANSFER_WRITE_BIT,
VK_ACCESS_SHADER_READ_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
imageSparse,
fullImageSubresourceRange
);
imageShaderAccessBarriers[1] = makeImageMemoryBarrier
(
0u,
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
imageTexels,
fullImageSubresourceRange
);
imageShaderAccessBarriers[2] = makeImageMemoryBarrier
(
0u,
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
imageResidency,
fullImageSubresourceRange
);
deviceInterface.cmdPipelineBarrier(commandBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0u, 0u, DE_NULL, 0u, DE_NULL, 3u, imageShaderAccessBarriers);
}
imageSparseViews.resize(imageSparseInfo.mipLevels);
imageTexelsViews.resize(imageSparseInfo.mipLevels);
imageResidencyViews.resize(imageSparseInfo.mipLevels);
m_framebuffers.resize(imageSparseInfo.mipLevels);
descriptorSets.resize(imageSparseInfo.mipLevels);
std::vector<VkClearValue> clearValues;
clearValues.push_back(makeClearValueColor(tcu::Vec4(0.0f, 0.0f, 0.0f, 1.0f)));
clearValues.push_back(makeClearValueColor(tcu::Vec4(0.0f, 0.0f, 0.0f, 1.0f)));
for (deUint32 mipLevelNdx = 0u; mipLevelNdx < imageSparseInfo.mipLevels; ++mipLevelNdx)
{
const vk::VkExtent3D mipLevelSize = mipLevelExtents(imageSparseInfo.extent, mipLevelNdx);
const vk::VkRect2D renderArea = makeRect2D(mipLevelSize);
const VkViewport viewport = makeViewport(mipLevelSize);
const VkImageSubresourceRange mipLevelRange = makeImageSubresourceRange(VK_IMAGE_ASPECT_COLOR_BIT, mipLevelNdx, 1u, 0u, imageSparseInfo.arrayLayers);
// Create color attachments image views
imageTexelsViews[mipLevelNdx] = makeVkSharedPtr(makeImageView(deviceInterface, getDevice(), imageTexels, mapImageViewType(m_imageType), imageSparseInfo.format, mipLevelRange));
imageResidencyViews[mipLevelNdx] = makeVkSharedPtr(makeImageView(deviceInterface, getDevice(), imageResidency, mapImageViewType(m_imageType), mapTextureFormat(m_residencyFormat), mipLevelRange));
const VkImageView attachmentsViews[] = { **imageTexelsViews[mipLevelNdx], **imageResidencyViews[mipLevelNdx] };
// Create framebuffer
const VkFramebufferCreateInfo framebufferInfo =
{
VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkFramebufferCreateFlags)0, // VkFramebufferCreateFlags flags;
*m_renderPass, // VkRenderPass renderPass;
2u, // uint32_t attachmentCount;
attachmentsViews, // const VkImageView* pAttachments;
mipLevelSize.width, // uint32_t width;
mipLevelSize.height, // uint32_t height;
imageSparseInfo.arrayLayers, // uint32_t layers;
};
m_framebuffers[mipLevelNdx] = makeVkSharedPtr(createFramebuffer(deviceInterface, getDevice(), &framebufferInfo));
// Create descriptor set
descriptorSets[mipLevelNdx] = makeVkSharedPtr(makeDescriptorSet(deviceInterface, getDevice(), *descriptorPool, *descriptorSetLayout));
const VkDescriptorSet descriptorSet = **descriptorSets[mipLevelNdx];
// Update descriptor set
const VkImageSubresourceRange sparseImageSubresourceRange = sampledImageRangeToBind(imageSparseInfo, mipLevelNdx);
imageSparseViews[mipLevelNdx] = makeVkSharedPtr(makeImageView(deviceInterface, getDevice(), imageSparse, mapImageViewType(m_imageType), imageSparseInfo.format, sparseImageSubresourceRange));
const VkDescriptorImageInfo imageSparseDescInfo = makeDescriptorImageInfo(*m_sampler, **imageSparseViews[mipLevelNdx], VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
DescriptorSetUpdateBuilder descriptorUpdateBuilder;
descriptorUpdateBuilder.writeSingle(descriptorSet, DescriptorSetUpdateBuilder::Location::binding(BINDING_IMAGE_SPARSE), VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, &imageSparseDescInfo);
descriptorUpdateBuilder.update(deviceInterface, getDevice());
// Begin render pass
beginRenderPass(deviceInterface, commandBuffer, *m_renderPass, **m_framebuffers[mipLevelNdx], renderArea, (deUint32)clearValues.size(), &clearValues[0]);
// Bind graphics pipeline
deviceInterface.cmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
// Bind descriptor set
deviceInterface.cmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *pipelineLayout, 0u, 1u, &descriptorSet, 0u, DE_NULL);
// Bind vertex buffer
{
const VkDeviceSize offset = 0ull;
deviceInterface.cmdBindVertexBuffers(commandBuffer, 0u, 1u, &m_vertexBuffer.get(), &offset);
}
// Bind Viewport
deviceInterface.cmdSetViewport(commandBuffer, 0u, 1u, &viewport);
// Bind Scissor Rectangle
deviceInterface.cmdSetScissor(commandBuffer, 0u, 1u, &renderArea);
const PushConstants pushConstants =
{
mipLevelNdx,
0u, // padding
static_cast<float>(mipLevelSize.width),
static_cast<float>(mipLevelSize.height)
};
// Update push constants
deviceInterface.cmdPushConstants(commandBuffer, *pipelineLayout, VK_SHADER_STAGE_FRAGMENT_BIT, 0u, sizeof(PushConstants), &pushConstants);
// Draw full screen quad
deviceInterface.cmdDraw(commandBuffer, 4u, 1u, 0u, 0u);
// End render pass
endRenderPass(deviceInterface, commandBuffer);
}
{
const VkImageSubresourceRange fullImageSubresourceRange = makeImageSubresourceRange(VK_IMAGE_ASPECT_COLOR_BIT, 0u, imageSparseInfo.mipLevels, 0u, imageSparseInfo.arrayLayers);
VkImageMemoryBarrier imageOutputTransferSrcBarriers[2];
imageOutputTransferSrcBarriers[0] = makeImageMemoryBarrier
(
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
VK_ACCESS_TRANSFER_READ_BIT,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
imageTexels,
fullImageSubresourceRange
);
imageOutputTransferSrcBarriers[1] = makeImageMemoryBarrier
(
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
VK_ACCESS_TRANSFER_READ_BIT,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
imageResidency,
fullImageSubresourceRange
);
deviceInterface.cmdPipelineBarrier(commandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0u, 0u, DE_NULL, 0u, DE_NULL, 2u, imageOutputTransferSrcBarriers);
}
}
int main()
{
// first, create a vulkan instance
// the needed/used instance extensions
constexpr const char* iniExtensions[] = {
VK_KHR_SURFACE_EXTENSION_NAME,
VK_KHR_WIN32_SURFACE_EXTENSION_NAME,
VK_EXT_DEBUG_REPORT_EXTENSION_NAME
};
// enables all default layers
constexpr auto layer = "VK_LAYER_LUNARG_standard_validation";
// basic application info
// we use vulkan api version 1.0
vk::ApplicationInfo appInfo ("vpp-intro", 1, "vpp", 1, VK_API_VERSION_1_0);
vk::InstanceCreateInfo instanceInfo;
instanceInfo.pApplicationInfo = &appInfo;
instanceInfo.enabledExtensionCount = sizeof(iniExtensions) / sizeof(iniExtensions[0]);
instanceInfo.ppEnabledExtensionNames = iniExtensions;
instanceInfo.enabledLayerCount = 1;
instanceInfo.ppEnabledLayerNames = &layer;
vpp::Instance instance(instanceInfo);
// create a debug callback for our instance and the default layers
// the default implementation will just output to std::cerr when a debug callback
// is received
vpp::DebugCallback debugCallback(instance);
// this function will create a winapi window wrapper and also create a surface for it
// this should usually be done by a cross platform window abstraction
Window window(instance);
// now create a device for the instance and surface
// note how vpp will automatically select a suited physical device and query
// queue families to create basic-needs queues with this constructor.
// We also retrieve the present queue to present on our surface from this
// constructor
const vpp::Queue* presentQueue;
vpp::Device device(instance, window.surface, presentQueue);
// now we can create a vulkan swapchain
// again, we just use the fast way that choses quite sane defaults for us but note
// that the class offers many convininient configuration possibilities
vpp::Swapchain swapchain(device, window.surface);
// to render the triangle we also need to create a render pass
vpp::RenderPass renderPass = createRenderPass(swapchain);
// we also create the graphics pipeline that will render our triangle as well
// as the buffer to hold our vertices
vpp::PipelineLayout pipelineLayout(device, {});
auto pipeline = createGraphicsPipeline(device, renderPass, pipelineLayout);
// note how vpp takes care of buffer allocation (in an efficient way, even when used
// for multiple resources)
constexpr auto size = 3u * (2u + 4u) * 4u; // 3 vertices, vec2, vec4 with 4 bytes components
constexpr auto usage = vk::BufferUsageBits::vertexBuffer | vk::BufferUsageBits::transferDst;
vpp::Buffer vertexBuffer(device, {{}, size, usage});
// vertex data (only positions and color)
constexpr std::array<float, 6 * 3> vertexData = {{
0.f, -0.75f, 1.f, 0.f, 0.f, 1.f, // top
-0.75f, 0.75f, 0.f, 1.f, 0.f, 1.f, // left
0.75f, 0.75f, 0.f, 0.f, 1.f, 1.f // right
}};
// vpp can now be used to fill the vertex buffer with data in the most efficient way
// in this case the buffer layout does not matter since its a vertex buffer
// note how vpp automatically unpacks the std::array
vpp::fill140(vertexBuffer, vpp::raw(vertexData));
// to render onto the created swapchain we can use vpp::SwapchainRenderer
// the class implements the default framebuffer and commandbuffer handling
// we simply implement the vpp::RendererBuilder interface that will be used
// to build the render command buffers
vpp::SwapchainRenderer::CreateInfo rendererInfo;
rendererInfo.queueFamily = device.queue(vk::QueueBits::graphics)->family();
rendererInfo.renderPass = renderPass;
auto impl = std::make_unique<IntroRendererImpl>();
impl->pipeline = pipeline;
impl->vertexBuffer = vertexBuffer;
vpp::SwapchainRenderer renderer(swapchain, rendererInfo, std::move(impl));
renderer.record();
// run the main loop
// we just recevie windows events and render after all are processed
// sry for windows again...
using Clock = std::chrono::high_resolution_clock;
auto frames = 0u;
auto point = Clock::now();
auto run = true;
while(run) {
MSG msg;
while(PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE) != 0) {
if(msg.message == WM_QUIT) {
run = false;
break;
} else {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
if(!run) break;
renderer.renderBlock(*presentQueue);
++frames;
// output the average fps count ever second
auto duration = Clock::now() - point;
if(duration >= std::chrono::seconds(1)) {
auto count = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count();
std::cout << static_cast<int>(frames * (1000.0 / count)) << " fps\n";
point = Clock::now();
frames = 0u;
}
}
return EXIT_SUCCESS;
}
