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// Copyright 2020 The SwiftShader Authors. All Rights Reserved.
//
// 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 "benchmark/benchmark.h"
#define VK_USE_PLATFORM_WIN32_KHR
#define VULKAN_HPP_DISPATCH_LOADER_DYNAMIC 1
#include <vulkan/vulkan.hpp>
VULKAN_HPP_DEFAULT_DISPATCH_LOADER_DYNAMIC_STORAGE
#include "SPIRV/GlslangToSpv.h"
#include "StandAlone/ResourceLimits.h"
#include "glslang/Public/ShaderLang.h"
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <cassert>
#include <vector>
class VulkanBenchmark
{
public:
VulkanBenchmark()
{
// TODO(b/158231104): Other platforms
dl = std::make_unique<vk::DynamicLoader>("./vk_swiftshader.dll");
assert(dl->success());
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = dl->getProcAddress<PFN_vkGetInstanceProcAddr>("vkGetInstanceProcAddr");
VULKAN_HPP_DEFAULT_DISPATCHER.init(vkGetInstanceProcAddr);
instance = vk::createInstance({}, nullptr);
VULKAN_HPP_DEFAULT_DISPATCHER.init(instance);
std::vector<vk::PhysicalDevice> physicalDevices = instance.enumeratePhysicalDevices();
assert(!physicalDevices.empty());
physicalDevice = physicalDevices[0];
const float defaultQueuePriority = 0.0f;
vk::DeviceQueueCreateInfo queueCreatInfo;
queueCreatInfo.queueFamilyIndex = queueFamilyIndex;
queueCreatInfo.queueCount = 1;
queueCreatInfo.pQueuePriorities = &defaultQueuePriority;
vk::DeviceCreateInfo deviceCreateInfo;
deviceCreateInfo.queueCreateInfoCount = 1;
deviceCreateInfo.pQueueCreateInfos = &queueCreatInfo;
device = physicalDevice.createDevice(deviceCreateInfo, nullptr);
queue = device.getQueue(queueFamilyIndex, 0);
}
virtual ~VulkanBenchmark()
{
device.waitIdle();
device.destroy();
instance.destroy();
}
protected:
uint32_t getMemoryTypeIndex(uint32_t typeBits, vk::MemoryPropertyFlags properties)
{
vk::PhysicalDeviceMemoryProperties deviceMemoryProperties = vk::PhysicalDevice::GetMemoryProperties();
for(uint32_t i = 0; i < deviceMemoryProperties.memoryTypeCount; i++)
{
if((typeBits & 1) == 1)
{
if((deviceMemoryProperties.memoryTypes[i].propertyFlags & properties) == properties)
{
return i;
}
}
typeBits >>= 1;
}
assert(false);
return -1;
}
const uint32_t queueFamilyIndex = 0;
vk::Instance instance;
vk::PhysicalDevice physicalDevice;
vk::Device device;
vk::Queue queue;
private:
std::unique_ptr<vk::DynamicLoader> dl;
};
class ClearImageBenchmark : public VulkanBenchmark
{
public:
ClearImageBenchmark(vk::Format clearFormat, vk::ImageAspectFlagBits clearAspect)
{
vk::ImageCreateInfo imageInfo;
imageInfo.imageType = vk::ImageType::e2D;
imageInfo.format = clearFormat;
imageInfo.tiling = vk::ImageTiling::eOptimal;
imageInfo.initialLayout = vk::ImageLayout::eGeneral;
imageInfo.usage = vk::ImageUsageFlagBits::eTransferDst;
imageInfo.samples = vk::SampleCountFlagBits::e4;
imageInfo.extent = { 1024, 1024, 1 };
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
image = device.createImage(imageInfo);
vk::MemoryRequirements memoryRequirements = device.getImageMemoryRequirements(image);
vk::MemoryAllocateInfo allocateInfo;
allocateInfo.allocationSize = memoryRequirements.size;
allocateInfo.memoryTypeIndex = 0;
memory = device.allocateMemory(allocateInfo);
device.bindImageMemory(image, memory, 0);
vk::CommandPoolCreateInfo commandPoolCreateInfo;
commandPoolCreateInfo.queueFamilyIndex = queueFamilyIndex;
commandPool = device.createCommandPool(commandPoolCreateInfo);
vk::CommandBufferAllocateInfo commandBufferAllocateInfo;
commandBufferAllocateInfo.commandPool = commandPool;
commandBufferAllocateInfo.commandBufferCount = 1;
commandBuffer = device.allocateCommandBuffers(commandBufferAllocateInfo)[0];
vk::CommandBufferBeginInfo commandBufferBeginInfo;
commandBufferBeginInfo.flags = {};
commandBuffer.begin(commandBufferBeginInfo);
vk::ImageSubresourceRange range;
range.aspectMask = clearAspect;
range.baseMipLevel = 0;
range.levelCount = 1;
range.baseArrayLayer = 0;
range.layerCount = 1;
if(clearAspect == vk::ImageAspectFlagBits::eColor)
{
vk::ClearColorValue clearColorValue;
clearColorValue.float32[0] = 0.0f;
clearColorValue.float32[1] = 1.0f;
clearColorValue.float32[2] = 0.0f;
clearColorValue.float32[3] = 1.0f;
commandBuffer.clearColorImage(image, vk::ImageLayout::eGeneral, &clearColorValue, 1, &range);
}
else if(clearAspect == vk::ImageAspectFlagBits::eDepth)
{
vk::ClearDepthStencilValue clearDepthStencilValue;
clearDepthStencilValue.depth = 1.0f;
clearDepthStencilValue.stencil = 0xFF;
commandBuffer.clearDepthStencilImage(image, vk::ImageLayout::eGeneral, &clearDepthStencilValue, 1, &range);
}
else
assert(false);
commandBuffer.end();
}
~ClearImageBenchmark()
{
device.freeCommandBuffers(commandPool, { commandBuffer });
device.destroyCommandPool(commandPool);
device.freeMemory(memory);
device.destroyImage(image);
}
void clear()
{
vk::SubmitInfo submitInfo;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffer;
queue.submit(1, &submitInfo, nullptr);
queue.waitIdle();
}
private:
vk::CommandPool commandPool;
vk::CommandBuffer commandBuffer;
vk::Image image;
vk::DeviceMemory memory;
};
static void ClearImage(benchmark::State &state, vk::Format clearFormat, vk::ImageAspectFlagBits clearAspect)
{
ClearImageBenchmark benchmark(clearFormat, clearAspect);
// Execute once to have the Reactor routine generated.
benchmark.clear();
for(auto _ : state)
{
benchmark.clear();
}
}
BENCHMARK_CAPTURE(ClearImage, VK_FORMAT_R8G8B8A8_UNORM, vk::Format::eR8G8B8A8Unorm, vk::ImageAspectFlagBits::eColor)->Unit(benchmark::kMillisecond);
BENCHMARK_CAPTURE(ClearImage, VK_FORMAT_R32_SFLOAT, vk::Format::eR32Sfloat, vk::ImageAspectFlagBits::eColor)->Unit(benchmark::kMillisecond);
BENCHMARK_CAPTURE(ClearImage, VK_FORMAT_D32_SFLOAT, vk::Format::eD32Sfloat, vk::ImageAspectFlagBits::eDepth)->Unit(benchmark::kMillisecond);
class Window
{
public:
Window(vk::Instance instance, vk::Extent2D windowSize)
{
moduleInstance = GetModuleHandle(NULL);
windowClass.cbSize = sizeof(WNDCLASSEX);
windowClass.style = CS_HREDRAW | CS_VREDRAW;
windowClass.lpfnWndProc = DefWindowProc;
windowClass.cbClsExtra = 0;
windowClass.cbWndExtra = 0;
windowClass.hInstance = moduleInstance;
windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
windowClass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
windowClass.lpszMenuName = NULL;
windowClass.lpszClassName = "Window";
windowClass.hIconSm = LoadIcon(NULL, IDI_WINLOGO);
RegisterClassEx(&windowClass);
DWORD style = WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
DWORD extendedStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
RECT windowRect;
windowRect.left = 0L;
windowRect.top = 0L;
windowRect.right = (long)windowSize.width;
windowRect.bottom = (long)windowSize.height;
AdjustWindowRectEx(&windowRect, style, FALSE, extendedStyle);
uint32_t x = (GetSystemMetrics(SM_CXSCREEN) - windowRect.right) / 2;
uint32_t y = (GetSystemMetrics(SM_CYSCREEN) - windowRect.bottom) / 2;
window = CreateWindowEx(extendedStyle, "Window", "Hello",
style | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
x, y,
windowRect.right - windowRect.left,
windowRect.bottom - windowRect.top,
NULL, NULL, moduleInstance, NULL);
SetForegroundWindow(window);
SetFocus(window);
// Create the Vulkan surface
vk::Win32SurfaceCreateInfoKHR surfaceCreateInfo;
surfaceCreateInfo.hinstance = moduleInstance;
surfaceCreateInfo.hwnd = window;
surface = instance.createWin32SurfaceKHR(surfaceCreateInfo);
assert(surface);
}
~Window()
{
instance.destroySurfaceKHR(surface);
DestroyWindow(window);
UnregisterClass("Window", moduleInstance);
}
vk::SurfaceKHR getSurface()
{
return surface;
}
void show()
{
ShowWindow(window, SW_SHOW);
}
private:
HWND window;
HINSTANCE moduleInstance;
WNDCLASSEX windowClass;
const vk::Instance instance;
vk::SurfaceKHR surface;
};
class Swapchain
{
public:
Swapchain(vk::PhysicalDevice physicalDevice, vk::Device device, Window *window)
: device(device)
{
vk::SurfaceKHR surface = window->getSurface();
// Create the swapchain
vk::SurfaceCapabilitiesKHR surfaceCapabilities = physicalDevice.getSurfaceCapabilitiesKHR(surface);
vk::SwapchainCreateInfoKHR swapchainCreateInfo;
swapchainCreateInfo.surface = surface;
swapchainCreateInfo.minImageCount = 2; // double-buffered
swapchainCreateInfo.imageFormat = colorFormat;
swapchainCreateInfo.imageColorSpace = vk::ColorSpaceKHR::eSrgbNonlinear;
swapchainCreateInfo.imageExtent = surfaceCapabilities.currentExtent;
swapchainCreateInfo.imageUsage = vk::ImageUsageFlagBits::eColorAttachment;
swapchainCreateInfo.preTransform = vk::SurfaceTransformFlagBitsKHR::eIdentity;
swapchainCreateInfo.imageArrayLayers = 1;
swapchainCreateInfo.imageSharingMode = vk::SharingMode::eExclusive;
swapchainCreateInfo.presentMode = vk::PresentModeKHR::eFifo;
swapchainCreateInfo.clipped = VK_TRUE;
swapchainCreateInfo.compositeAlpha = vk::CompositeAlphaFlagBitsKHR::eOpaque;
swapchain = device.createSwapchainKHR(swapchainCreateInfo);
// Obtain the images and create views for them
images = device.getSwapchainImagesKHR(swapchain);
imageViews.resize(images.size());
for(size_t i = 0; i < imageViews.size(); i++)
{
vk::ImageViewCreateInfo colorAttachmentView;
colorAttachmentView.image = images[i];
colorAttachmentView.viewType = vk::ImageViewType::e2D;
colorAttachmentView.format = colorFormat;
colorAttachmentView.subresourceRange.aspectMask = vk::ImageAspectFlagBits::eColor;
colorAttachmentView.subresourceRange.baseMipLevel = 0;
colorAttachmentView.subresourceRange.levelCount = 1;
colorAttachmentView.subresourceRange.baseArrayLayer = 0;
colorAttachmentView.subresourceRange.layerCount = 1;
imageViews[i] = device.createImageView(colorAttachmentView);
}
}
~Swapchain()
{
for(auto &imageView : imageViews)
{
device.destroyImageView(imageView);
}
device.destroySwapchainKHR(swapchain);
}
void acquireNextImage(VkSemaphore presentCompleteSemaphore, uint32_t &imageIndex)
{
auto result = device.acquireNextImageKHR(swapchain, UINT64_MAX, presentCompleteSemaphore, vk::Fence());
imageIndex = result.value;
}
void queuePresent(vk::Queue queue, uint32_t imageIndex, vk::Semaphore waitSemaphore)
{
vk::PresentInfoKHR presentInfo;
presentInfo.pWaitSemaphores = &waitSemaphore;
presentInfo.waitSemaphoreCount = 1;
presentInfo.swapchainCount = 1;
presentInfo.pSwapchains = &swapchain;
presentInfo.pImageIndices = &imageIndex;
queue.presentKHR(presentInfo);
}
size_t imageCount() const
{
return images.size();
}
vk::ImageView getImageView(size_t i) const
{
return imageViews[i];
}
const vk::Format colorFormat = vk::Format::eB8G8R8A8Unorm;
private:
const vk::Device device;
vk::SwapchainKHR swapchain;
std::vector<vk::Image> images; // Weak pointers. Presentable images owned by swapchain object.
std::vector<vk::ImageView> imageViews;
};
struct Image
{
vk::Image image;
vk::DeviceMemory imageMemory;
vk::ImageView imageView;
};
class Framebuffer
{
public:
Framebuffer(vk::Device device, vk::ImageView attachment, vk::Format colorFormat, vk::RenderPass renderPass, uint32_t width, uint32_t height, bool multisample)
: device(device)
{
std::vector<vk::ImageView> attachments(multisample ? 2 : 1);
if(multisample)
{
// Create multisample images
vk::ImageCreateInfo imageInfo;
imageInfo.imageType = vk::ImageType::e2D;
imageInfo.format = colorFormat;
imageInfo.tiling = vk::ImageTiling::eOptimal;
imageInfo.initialLayout = vk::ImageLayout::eGeneral;
imageInfo.usage = vk::ImageUsageFlagBits::eColorAttachment;
imageInfo.samples = vk::SampleCountFlagBits::e4;
imageInfo.extent = { width, height, 1 };
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
multisampleImage.image = device.createImage(imageInfo);
vk::MemoryRequirements memoryRequirements = device.getImageMemoryRequirements(multisampleImage.image);
vk::MemoryAllocateInfo allocateInfo;
allocateInfo.allocationSize = memoryRequirements.size;
allocateInfo.memoryTypeIndex = 0; //getMemoryTypeIndex(memoryRequirements.memoryTypeBits, vk::MemoryPropertyFlagBits::eDeviceLocal);
multisampleImage.imageMemory = device.allocateMemory(allocateInfo);
device.bindImageMemory(multisampleImage.image, multisampleImage.imageMemory, 0);
vk::ImageViewCreateInfo colorAttachmentView;
colorAttachmentView.image = multisampleImage.image;
colorAttachmentView.viewType = vk::ImageViewType::e2D;
colorAttachmentView.format = colorFormat;
colorAttachmentView.subresourceRange.aspectMask = vk::ImageAspectFlagBits::eColor;
colorAttachmentView.subresourceRange.baseMipLevel = 0;
colorAttachmentView.subresourceRange.levelCount = 1;
colorAttachmentView.subresourceRange.baseArrayLayer = 0;
colorAttachmentView.subresourceRange.layerCount = 1;
multisampleImage.imageView = device.createImageView(colorAttachmentView);
// We'll be rendering to attachment location 0
attachments[0] = multisampleImage.imageView;
attachments[1] = attachment; // Resolve attachment
}
else
{
attachments[0] = attachment;
}
vk::FramebufferCreateInfo framebufferCreateInfo;
framebufferCreateInfo.renderPass = renderPass;
framebufferCreateInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
framebufferCreateInfo.pAttachments = attachments.data();
framebufferCreateInfo.width = width;
framebufferCreateInfo.height = height;
framebufferCreateInfo.layers = 1;
framebuffer = device.createFramebuffer(framebufferCreateInfo);
}
~Framebuffer()
{
device.destroyFramebuffer(framebuffer);
device.destroyImage(multisampleImage.image);
device.destroyImageView(multisampleImage.imageView);
device.freeMemory(multisampleImage.imageMemory);
}
vk::Framebuffer getFramebuffer()
{
return framebuffer;
}
private:
vk::Device device;
vk::Framebuffer framebuffer;
Image multisampleImage;
};
static std::vector<uint32_t> compileGLSLtoSPIRV(const char *glslSource, EShLanguage glslLanguage)
{
// glslang requires one-time initialization.
const struct GlslangProcessInitialiser
{
GlslangProcessInitialiser() { glslang::InitializeProcess(); }
~GlslangProcessInitialiser() { glslang::FinalizeProcess(); }
} glslangInitialiser;
std::unique_ptr<glslang::TShader> glslangShader = std::make_unique<glslang::TShader>(glslLanguage);
glslangShader->setStrings(&glslSource, 1);
glslangShader->setEnvClient(glslang::EShClientVulkan, glslang::EShTargetVulkan_1_1);
glslangShader->setEnvTarget(glslang::EShTargetSpv, glslang::EShTargetSpv_1_3);
const int defaultVersion = 100;
EShMessages messages = static_cast<EShMessages>(EShMessages::EShMsgDefault | EShMessages::EShMsgSpvRules | EShMessages::EShMsgVulkanRules);
bool parseResult = glslangShader->parse(&glslang::DefaultTBuiltInResource, defaultVersion, false, messages);
if(!parseResult)
{
std::string debugLog = glslangShader->getInfoDebugLog();
std::string infoLog = glslangShader->getInfoLog();
assert(false);
}
glslang::TIntermediate *intermediateRepresentation = glslangShader->getIntermediate();
assert(intermediateRepresentation);
std::vector<uint32_t> spirv;
glslang::SpvOptions options;
glslang::GlslangToSpv(*intermediateRepresentation, spirv, &options);
assert(spirv.size() != 0);
return spirv;
}
class TriangleBenchmark : public VulkanBenchmark
{
public:
TriangleBenchmark(bool multisample)
: multisample(multisample)
{
window = new Window(instance, windowSize);
swapchain = new Swapchain(physicalDevice, device, window);
renderPass = createRenderPass(swapchain->colorFormat);
createFramebuffers(renderPass);
prepareVertices();
pipeline = createGraphicsPipeline(renderPass);
createSynchronizationPrimitives();
createCommandBuffers(renderPass);
}
~TriangleBenchmark()
{
device.destroyPipelineLayout(pipelineLayout);
device.destroyPipelineCache(pipelineCache);
device.destroyBuffer(vertices.buffer);
device.freeMemory(vertices.memory);
device.destroySemaphore(presentCompleteSemaphore);
device.destroySemaphore(renderCompleteSemaphore);
for(auto &fence : waitFences)
{
device.destroyFence(fence);
}
for(auto *framebuffer : framebuffers)
{
delete framebuffer;
}
device.destroyRenderPass(renderPass);
device.freeCommandBuffers(commandPool, commandBuffers);
device.destroyCommandPool(commandPool);
delete swapchain;
delete window;
}
void renderFrame()
{
swapchain->acquireNextImage(presentCompleteSemaphore, currentFrameBuffer);
device.waitForFences(1, &waitFences[currentFrameBuffer], VK_TRUE, UINT64_MAX);
device.resetFences(1, &waitFences[currentFrameBuffer]);
vk::PipelineStageFlags waitStageMask = vk::PipelineStageFlagBits::eColorAttachmentOutput;
vk::SubmitInfo submitInfo;
submitInfo.pWaitDstStageMask = &waitStageMask;
submitInfo.pWaitSemaphores = &presentCompleteSemaphore;
submitInfo.waitSemaphoreCount = 1;
submitInfo.pSignalSemaphores = &renderCompleteSemaphore;
submitInfo.signalSemaphoreCount = 1;
submitInfo.pCommandBuffers = &commandBuffers[currentFrameBuffer];
submitInfo.commandBufferCount = 1;
queue.submit(1, &submitInfo, waitFences[currentFrameBuffer]);
swapchain->queuePresent(queue, currentFrameBuffer, renderCompleteSemaphore);
}
void show()
{
window->show();
}
protected:
void createSynchronizationPrimitives()
{
vk::SemaphoreCreateInfo semaphoreCreateInfo;
presentCompleteSemaphore = device.createSemaphore(semaphoreCreateInfo);
renderCompleteSemaphore = device.createSemaphore(semaphoreCreateInfo);
vk::FenceCreateInfo fenceCreateInfo;
fenceCreateInfo.flags = vk::FenceCreateFlagBits::eSignaled;
waitFences.resize(swapchain->imageCount());
for(auto &fence : waitFences)
{
fence = device.createFence(fenceCreateInfo);
}
}
void createCommandBuffers(vk::RenderPass renderPass)
{
vk::CommandPoolCreateInfo commandPoolCreateInfo;
commandPoolCreateInfo.queueFamilyIndex = queueFamilyIndex;
commandPoolCreateInfo.flags = vk::CommandPoolCreateFlagBits::eResetCommandBuffer;
commandPool = device.createCommandPool(commandPoolCreateInfo);
vk::CommandBufferAllocateInfo commandBufferAllocateInfo;
commandBufferAllocateInfo.commandPool = commandPool;
commandBufferAllocateInfo.commandBufferCount = swapchain->imageCount();
commandBufferAllocateInfo.level = vk::CommandBufferLevel::ePrimary;
commandBuffers = device.allocateCommandBuffers(commandBufferAllocateInfo);
for(size_t i = 0; i < commandBuffers.size(); i++)
{
vk::CommandBufferBeginInfo commandBufferBeginInfo;
commandBuffers[i].begin(commandBufferBeginInfo);
vk::ClearValue clearValues[1];
clearValues[0].color = vk::ClearColorValue(std::array<float, 4>{ 0.5f, 0.5f, 0.5f, 1.0f });
vk::RenderPassBeginInfo renderPassBeginInfo;
renderPassBeginInfo.framebuffer = framebuffers[i]->getFramebuffer();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent = windowSize;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = clearValues;
commandBuffers[i].beginRenderPass(renderPassBeginInfo, vk::SubpassContents::eInline);
// Set dynamic state
vk::Viewport viewport(0.0f, 0.0f, windowSize.width, windowSize.height, 0.0f, 1.0f);
commandBuffers[i].setViewport(0, 1, &viewport);
vk::Rect2D scissor(vk::Offset2D(0, 0), windowSize);
commandBuffers[i].setScissor(0, 1, &scissor);
// Draw a triangle
commandBuffers[i].bindPipeline(vk::PipelineBindPoint::eGraphics, pipeline.get());
commandBuffers[i].bindVertexBuffers(0, { vertices.buffer }, { 0 });
commandBuffers[i].draw(3, 1, 0, 0);
commandBuffers[i].endRenderPass();
commandBuffers[i].end();
}
}
void prepareVertices()
{
struct Vertex
{
float position[3];
float color[3];
};
Vertex vertexBufferData[] = {
{ { 1.0f, 1.0f, 0.05f }, { 1.0f, 0.0f, 0.0f } },
{ { -1.0f, 1.0f, 0.5f }, { 0.0f, 1.0f, 0.0f } },
{ { 0.0f, -1.0f, 0.5f }, { 0.0f, 0.0f, 1.0f } }
};
vk::BufferCreateInfo vertexBufferInfo;
vertexBufferInfo.size = sizeof(vertexBufferData);
vertexBufferInfo.usage = vk::BufferUsageFlagBits::eVertexBuffer;
vertices.buffer = device.createBuffer(vertexBufferInfo);
vk::MemoryAllocateInfo memoryAllocateInfo;
vk::MemoryRequirements memoryRequirements = device.getBufferMemoryRequirements(vertices.buffer);
memoryAllocateInfo.allocationSize = memoryRequirements.size;
memoryAllocateInfo.memoryTypeIndex = getMemoryTypeIndex(memoryRequirements.memoryTypeBits, vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent);
vk::DeviceMemory vertexBufferMemory = device.allocateMemory(memoryAllocateInfo);
void *data = device.mapMemory(vertexBufferMemory, 0, VK_WHOLE_SIZE);
memcpy(data, vertexBufferData, sizeof(vertexBufferData));
device.unmapMemory(vertexBufferMemory);
device.bindBufferMemory(vertices.buffer, vertexBufferMemory, 0);
vertices.inputBinding.binding = 0;
vertices.inputBinding.stride = sizeof(Vertex);
vertices.inputBinding.inputRate = vk::VertexInputRate::eVertex;
vertices.inputAttributes.push_back(vk::VertexInputAttributeDescription(0, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, position)));
vertices.inputAttributes.push_back(vk::VertexInputAttributeDescription(1, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, color)));
vertices.inputState.vertexBindingDescriptionCount = 1;
vertices.inputState.pVertexBindingDescriptions = &vertices.inputBinding;
vertices.inputState.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertices.inputAttributes.size());
vertices.inputState.pVertexAttributeDescriptions = vertices.inputAttributes.data();
}
void createFramebuffers(vk::RenderPass renderPass)
{
framebuffers.resize(swapchain->imageCount());
for(size_t i = 0; i < framebuffers.size(); i++)
{
framebuffers[i] = new Framebuffer(device, swapchain->getImageView(i), swapchain->colorFormat, renderPass, windowSize.width, windowSize.height, multisample);
}
}
vk::RenderPass createRenderPass(vk::Format colorFormat)
{
std::vector<vk::AttachmentDescription> attachments(multisample ? 2 : 1);
if(multisample)
{
// Color attachment
attachments[0].format = colorFormat;
attachments[0].samples = vk::SampleCountFlagBits::e4;
attachments[0].loadOp = vk::AttachmentLoadOp::eClear;
attachments[0].storeOp = vk::AttachmentStoreOp::eStore;
attachments[0].stencilLoadOp = vk::AttachmentLoadOp::eDontCare;
attachments[0].stencilStoreOp = vk::AttachmentStoreOp::eDontCare;
attachments[0].initialLayout = vk::ImageLayout::eUndefined;
attachments[0].finalLayout = vk::ImageLayout::eColorAttachmentOptimal;
// Resolve attachment
attachments[1].format = colorFormat;
attachments[1].samples = vk::SampleCountFlagBits::e1;
attachments[1].loadOp = vk::AttachmentLoadOp::eDontCare;
attachments[1].storeOp = vk::AttachmentStoreOp::eStore;
attachments[1].stencilLoadOp = vk::AttachmentLoadOp::eDontCare;
attachments[1].stencilStoreOp = vk::AttachmentStoreOp::eDontCare;
attachments[1].initialLayout = vk::ImageLayout::eUndefined;
attachments[1].finalLayout = vk::ImageLayout::ePresentSrcKHR;
}
else
{
attachments[0].format = colorFormat;
attachments[0].samples = vk::SampleCountFlagBits::e1;
attachments[0].loadOp = vk::AttachmentLoadOp::eDontCare;
attachments[0].storeOp = vk::AttachmentStoreOp::eStore;
attachments[0].stencilLoadOp = vk::AttachmentLoadOp::eDontCare;
attachments[0].stencilStoreOp = vk::AttachmentStoreOp::eDontCare;
attachments[0].initialLayout = vk::ImageLayout::eUndefined;
attachments[0].finalLayout = vk::ImageLayout::ePresentSrcKHR;
}
vk::AttachmentReference attachment0;
attachment0.attachment = 0;
attachment0.layout = vk::ImageLayout::eColorAttachmentOptimal;
vk::AttachmentReference attachment1;
attachment1.attachment = 1;
attachment1.layout = vk::ImageLayout::eColorAttachmentOptimal;
vk::SubpassDescription subpassDescription;
subpassDescription.pipelineBindPoint = vk::PipelineBindPoint::eGraphics;
subpassDescription.colorAttachmentCount = 1;
subpassDescription.pResolveAttachments = multisample ? &attachment1 : nullptr;
subpassDescription.pColorAttachments = &attachment0;
std::array<vk::SubpassDependency, 2> dependencies;
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
dependencies[0].dstSubpass = 0;
dependencies[0].srcStageMask = vk::PipelineStageFlagBits::eBottomOfPipe;
dependencies[0].dstStageMask = vk::PipelineStageFlagBits::eColorAttachmentOutput;
dependencies[0].srcAccessMask = vk::AccessFlagBits::eMemoryRead;
dependencies[0].dstAccessMask = vk::AccessFlagBits::eMemoryRead | vk::AccessFlagBits::eMemoryWrite;
dependencies[0].dependencyFlags = vk::DependencyFlagBits::eByRegion;
dependencies[1].srcSubpass = 0;
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
dependencies[1].srcStageMask = vk::PipelineStageFlagBits::eColorAttachmentOutput;
dependencies[1].dstStageMask = vk::PipelineStageFlagBits::eBottomOfPipe;
dependencies[1].srcAccessMask = vk::AccessFlagBits::eColorAttachmentRead | vk::AccessFlagBits::eColorAttachmentWrite;
dependencies[1].dstAccessMask = vk::AccessFlagBits::eMemoryRead;
dependencies[1].dependencyFlags = vk::DependencyFlagBits::eByRegion;
vk::RenderPassCreateInfo renderPassInfo;
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
renderPassInfo.pAttachments = attachments.data();
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpassDescription;
renderPassInfo.dependencyCount = static_cast<uint32_t>(dependencies.size());
renderPassInfo.pDependencies = dependencies.data();
return device.createRenderPass(renderPassInfo);
}
vk::UniqueShaderModule createShaderModule(const char *glslSource, EShLanguage glslLanguage)
{
auto spirv = compileGLSLtoSPIRV(glslSource, glslLanguage);
vk::ShaderModuleCreateInfo moduleCreateInfo;
moduleCreateInfo.codeSize = spirv.size() * sizeof(uint32_t);
moduleCreateInfo.pCode = (uint32_t *)spirv.data();
return device.createShaderModuleUnique(moduleCreateInfo);
}
vk::UniquePipeline createGraphicsPipeline(vk::RenderPass renderPass)
{
vk::PipelineLayoutCreateInfo pPipelineLayoutCreateInfo;
pPipelineLayoutCreateInfo.setLayoutCount = 0;
pipelineLayout = device.createPipelineLayout(pPipelineLayoutCreateInfo);
vk::GraphicsPipelineCreateInfo pipelineCreateInfo;
pipelineCreateInfo.layout = pipelineLayout;
pipelineCreateInfo.renderPass = renderPass;
vk::PipelineInputAssemblyStateCreateInfo inputAssemblyState;
inputAssemblyState.topology = vk::PrimitiveTopology::eTriangleList;
vk::PipelineRasterizationStateCreateInfo rasterizationState;
rasterizationState.depthClampEnable = VK_FALSE;
rasterizationState.rasterizerDiscardEnable = VK_FALSE;
rasterizationState.polygonMode = vk::PolygonMode::eFill;
rasterizationState.cullMode = vk::CullModeFlagBits::eNone;
rasterizationState.frontFace = vk::FrontFace::eCounterClockwise;
rasterizationState.depthBiasEnable = VK_FALSE;
rasterizationState.lineWidth = 1.0f;
vk::PipelineColorBlendAttachmentState blendAttachmentState;
blendAttachmentState.colorWriteMask = vk::ColorComponentFlagBits::eR | vk::ColorComponentFlagBits::eG | vk::ColorComponentFlagBits::eB | vk::ColorComponentFlagBits::eA;
blendAttachmentState.blendEnable = VK_FALSE;
vk::PipelineColorBlendStateCreateInfo colorBlendState;
colorBlendState.attachmentCount = 1;
colorBlendState.pAttachments = &blendAttachmentState;
vk::PipelineViewportStateCreateInfo viewportState;
viewportState.viewportCount = 1;
viewportState.scissorCount = 1;
std::vector<vk::DynamicState> dynamicStateEnables;
dynamicStateEnables.push_back(vk::DynamicState::eViewport);
dynamicStateEnables.push_back(vk::DynamicState::eScissor);
vk::PipelineDynamicStateCreateInfo dynamicState = {};
dynamicState.pDynamicStates = dynamicStateEnables.data();
dynamicState.dynamicStateCount = static_cast<uint32_t>(dynamicStateEnables.size());
vk::PipelineDepthStencilStateCreateInfo depthStencilState;
depthStencilState.depthTestEnable = VK_FALSE;
depthStencilState.depthWriteEnable = VK_FALSE;
depthStencilState.depthCompareOp = vk::CompareOp::eLessOrEqual;
depthStencilState.depthBoundsTestEnable = VK_FALSE;
depthStencilState.back.failOp = vk::StencilOp::eKeep;
depthStencilState.back.passOp = vk::StencilOp::eKeep;
depthStencilState.back.compareOp = vk::CompareOp::eAlways;
depthStencilState.stencilTestEnable = VK_FALSE;
depthStencilState.front = depthStencilState.back;
vk::PipelineMultisampleStateCreateInfo multisampleState;
multisampleState.rasterizationSamples = multisample ? vk::SampleCountFlagBits::e4 : vk::SampleCountFlagBits::e1;
multisampleState.pSampleMask = nullptr;
const char *vertexShader = R"(#version 310 es
layout(location = 0) in vec3 inPos;
layout(location = 1) in vec3 inColor;
layout(location = 0) out vec3 outColor;
void main()
{
outColor = inColor;
gl_Position = vec4(inPos.xyz, 1.0);
}
)";
const char *fragmentShader = R"(#version 310 es
precision highp float;
layout(location = 0) in vec3 inColor;
layout(location = 0) out vec4 outColor;
void main()
{
outColor = vec4(inColor, 1.0);
}
)";
vk::UniqueShaderModule vertexModule = createShaderModule(vertexShader, EShLanguage::EShLangVertex);
vk::UniqueShaderModule fragmentModule = createShaderModule(fragmentShader, EShLanguage::EShLangFragment);
std::array<vk::PipelineShaderStageCreateInfo, 2> shaderStages;
shaderStages[0].module = vertexModule.get();
shaderStages[0].stage = vk::ShaderStageFlagBits::eVertex;
shaderStages[0].pName = "main";
shaderStages[1].module = fragmentModule.get();
shaderStages[1].stage = vk::ShaderStageFlagBits::eFragment;
shaderStages[1].pName = "main";
pipelineCreateInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
pipelineCreateInfo.pStages = shaderStages.data();
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlendState;
pipelineCreateInfo.pMultisampleState = &multisampleState;
pipelineCreateInfo.pViewportState = &viewportState;
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
pipelineCreateInfo.renderPass = renderPass;
pipelineCreateInfo.pDynamicState = &dynamicState;
return device.createGraphicsPipelineUnique(nullptr, pipelineCreateInfo);
}
const vk::Extent2D windowSize = { 1280, 720 };
const bool multisample;
Window *window = nullptr;
Swapchain *swapchain = nullptr;
vk::RenderPass renderPass;
std::vector<Framebuffer *> framebuffers;
uint32_t currentFrameBuffer = 0;
struct VertexBuffer
{
vk::Buffer buffer;
vk::DeviceMemory memory;
vk::PipelineVertexInputStateCreateInfo inputState;
vk::VertexInputBindingDescription inputBinding;
std::vector<vk::VertexInputAttributeDescription> inputAttributes;
} vertices;
vk::PipelineLayout pipelineLayout;
vk::PipelineCache pipelineCache;
vk::UniquePipeline pipeline;
vk::CommandPool commandPool;
std::vector<vk::CommandBuffer> commandBuffers;
vk::Semaphore presentCompleteSemaphore;
vk::Semaphore renderCompleteSemaphore;
std::vector<vk::Fence> waitFences;
};
static void Triangle(benchmark::State &state, bool multisample)
{
TriangleBenchmark benchmark(multisample);
if(false) benchmark.show(); // Enable for visual verification.
// Warmup
benchmark.renderFrame();
for(auto _ : state)
{
benchmark.renderFrame();
}
}
BENCHMARK_CAPTURE(Triangle, Hello, false)->Unit(benchmark::kMillisecond);
BENCHMARK_CAPTURE(Triangle, Multisample, true)->Unit(benchmark::kMillisecond);