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27_model_loading_2.py
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27_model_loading_2.py
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# -*- coding: UTF-8 -*-
import sys
import time
from vulkan import *
from PySide2 import (QtGui, QtCore)
import numpy as np
from PIL import Image
# need to compile from
# https://github.com/mackst/tinyobjloader
# with pybind11
import tol
import glm
validationLayers = [
'VK_LAYER_LUNARG_standard_validation'
]
deviceExtensions = [
VK_KHR_SWAPCHAIN_EXTENSION_NAME
]
enableValidationLayers = True
class InstanceProcAddr(object):
T = None
def __init__(self, func):
self.__func = func
def __call__(self, *args, **kwargs):
funcName = self.__func.__name__
func = InstanceProcAddr.procfunc(funcName)
if func:
return func(*args, **kwargs)
else:
return VK_ERROR_EXTENSION_NOT_PRESENT
@staticmethod
def procfunc(funcName):
return vkGetInstanceProcAddr(InstanceProcAddr.T, funcName)
class DeviceProcAddr(InstanceProcAddr):
@staticmethod
def procfunc(funcName):
return vkGetDeviceProcAddr(InstanceProcAddr.T, funcName)
# instance ext functions
@InstanceProcAddr
def vkCreateDebugReportCallbackEXT(instance, pCreateInfo, pAllocator):
pass
@InstanceProcAddr
def vkDestroyDebugReportCallbackEXT(instance, pCreateInfo, pAllocator):
pass
@InstanceProcAddr
def vkCreateWin32SurfaceKHR(instance, pCreateInfo, pAllocator):
pass
@InstanceProcAddr
def vkDestroySurfaceKHR(instance, surface, pAllocator):
pass
@InstanceProcAddr
def vkGetPhysicalDeviceSurfaceSupportKHR(physicalDevice, queueFamilyIndex, surface):
pass
@InstanceProcAddr
def vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physicalDevice, surface):
pass
@InstanceProcAddr
def vkGetPhysicalDeviceSurfaceFormatsKHR(physicalDevice, surface):
pass
@InstanceProcAddr
def vkGetPhysicalDeviceSurfacePresentModesKHR(physicalDevice, surface):
pass
# device ext functions
@DeviceProcAddr
def vkCreateSwapchainKHR(device, pCreateInfo, pAllocator):
pass
@DeviceProcAddr
def vkDestroySwapchainKHR(device, swapchain, pAllocator):
pass
@DeviceProcAddr
def vkGetSwapchainImagesKHR(device, swapchain):
pass
@DeviceProcAddr
def vkAcquireNextImageKHR(device, swapchain, timeout, semaphore, fence):
pass
@DeviceProcAddr
def vkQueuePresentKHR(queue, pPresentInfo):
pass
def debugCallback(*args):
print('DEBUG: {} {}'.format(args[5], args[6]))
return 0
class Win32misc(object):
@staticmethod
def getInstance(hWnd):
from cffi import FFI as _FFI
_ffi = _FFI()
_ffi.cdef('long __stdcall GetWindowLongA(void* hWnd, int nIndex);')
_lib = _ffi.dlopen('User32.dll')
return _lib.GetWindowLongA(_ffi.cast('void*', hWnd), -6) # GWL_HINSTANCE
class QueueFamilyIndices(object):
def __init__(self):
self.graphicsFamily = -1
self.presentFamily = -1
@property
def isComplete(self):
return self.graphicsFamily >= 0 and self.presentFamily >= 0
class SwapChainSupportDetails(object):
def __init__(self):
self.capabilities = None
self.formats = None
self.presentModes = None
class Vertex(object):
POS = np.array([0, 0, 0], np.float32)
COLOR = np.array([0, 0, 0], np.float32)
TEXCOORD = np.array([0, 0], np.float32)
# def __init__(self):
# self.pos = []
# self.color = []
@staticmethod
def getBindingDescription():
bindingDescription = VkVertexInputBindingDescription(
binding=0,
stride=Vertex.POS.nbytes + Vertex.COLOR.nbytes + Vertex.TEXCOORD.nbytes,
inputRate=VK_VERTEX_INPUT_RATE_VERTEX
)
return bindingDescription
@staticmethod
def getAttributeDescriptions():
pos = VkVertexInputAttributeDescription(
location=0,
binding=0,
format=VK_FORMAT_R32G32B32_SFLOAT,
offset=0
)
color = VkVertexInputAttributeDescription(
location=1,
binding=0,
format=VK_FORMAT_R32G32B32_SFLOAT,
offset=Vertex.POS.nbytes,
)
texcoord = VkVertexInputAttributeDescription(
location=2,
binding=0,
format=VK_FORMAT_R32G32_SFLOAT,
offset=Vertex.POS.nbytes+Vertex.COLOR.nbytes,
)
return [pos, color, texcoord]
class UniformBufferObject(object):
def __init__(self):
self.model = np.identity(4, np.float32)
self.view = np.identity(4, np.float32)
self.proj = np.identity(4, np.float32)
def toArray(self):
return np.concatenate((self.model, self.view, self.proj))
@property
def nbytes(self):
return self.proj.nbytes + self.view.nbytes + self.model.nbytes
class HelloTriangleApplication(QtGui.QWindow):
def __init__(self):
super(HelloTriangleApplication, self).__init__()
self.setWidth(1280)
self.setHeight(720)
self.setMinimumWidth(40)
self.setMinimumHeight(40)
self.setTitle("Vulkan Python - PySide2")
# self.setSurfaceType(self.OpenGLSurface)
self.__instance = None
self.__callbcak = None
self.__surface = None
self.__physicalDevice = None
self.__device = None
self.__graphicQueue = None
self.__presentQueue = None
self.__swapChain = None
self.__swapChainImages = []
self.__swapChainImageFormat = None
self.__swapChainExtent = None
self.__swapChainImageViews = []
self.__swapChainFramebuffers = []
self.__renderpass = None
self.__pipeline = None
self.__pipelineLayout = None
self.__commandPool = None
self.__commandBuffers = []
self.__imageAvailableSemaphore = None
self.__renderFinishedSemaphore = None
self.__textureImage = None
self.__textureImageMemory = None
self.__textureImageView = None
self.__textureSampler = None
self.__depthImage = None
self.__depthImageMemory = None
self.__depthImageView = None
self.__vertexBuffer = None
self.__vertexBufferMemory = None
self.__indexBuffer = None
self.__indexBufferMemory = None
self.__descriptorPool = None
self.__descriptorSet = None
self.__descriptorSetLayout = None
self.__uniformBuffer = None
self.__uniformBufferMemory = None
self.modelPath = 'models/chalet.obj'
self.texturePath = 'textures/chalet.jpg'
self.__vertices = []
self.__indices = []
self.__ubo = UniformBufferObject()
self.__startTime = time.time()
self.timer = QtCore.QTimer(self)
self.timer.timeout.connect(self.render)
self.initVulkan()
self.timer.start()
def __del__(self):
vkDeviceWaitIdle(self.__device)
if self.__textureSampler:
vkDestroySampler(self.__device, self.__textureSampler, None)
if self.__textureImageView:
vkDestroyImageView(self.__device, self.__textureImageView, None)
if self.__textureImage:
vkDestroyImage(self.__device, self.__textureImage, None)
if self.__textureImageMemory:
vkFreeMemory(self.__device, self.__textureImageMemory, None)
if self.__descriptorPool:
vkDestroyDescriptorPool(self.__device, self.__descriptorPool, None)
if self.__uniformBuffer:
vkDestroyBuffer(self.__device, self.__uniformBuffer, None)
if self.__uniformBufferMemory:
vkFreeMemory(self.__device, self.__uniformBufferMemory, None)
if self.__vertexBuffer:
vkDestroyBuffer(self.__device, self.__vertexBuffer, None)
if self.__vertexBufferMemory:
vkFreeMemory(self.__device, self.__vertexBufferMemory, None)
if self.__indexBuffer:
vkDestroyBuffer(self.__device, self.__indexBuffer, None)
if self.__indexBufferMemory:
vkFreeMemory(self.__device, self.__indexBufferMemory, None)
if self.__imageAvailableSemaphore:
vkDestroySemaphore(self.__device, self.__imageAvailableSemaphore, None)
if self.__renderFinishedSemaphore:
vkDestroySemaphore(self.__device, self.__renderFinishedSemaphore, None)
if self.__descriptorSetLayout:
vkDestroyDescriptorSetLayout(self.__device, self.__descriptorSetLayout, None)
self.__cleanupSwapChain()
if self.__commandPool:
vkDestroyCommandPool(self.__device, self.__commandPool, None)
if self.__device:
vkDestroyDevice(self.__device, None)
if self.__callbcak:
vkDestroyDebugReportCallbackEXT(self.__instance, self.__callbcak, None)
if self.__surface:
vkDestroySurfaceKHR(self.__instance, self.__surface, None)
if self.__instance:
vkDestroyInstance(self.__instance, None)
print('instance destroyed')
self.destroy()
def __cleanupSwapChain(self):
vkDestroyImageView(self.__device, self.__depthImageView, None)
vkDestroyImage(self.__device, self.__depthImage, None)
vkFreeMemory(self.__device, self.__depthImageMemory, None)
[vkDestroyFramebuffer(self.__device, i, None) for i in self.__swapChainFramebuffers]
self.__swapChainFramebuffers = []
vkFreeCommandBuffers(self.__device, self.__commandPool, len(self.__commandBuffers), self.__commandBuffers)
self.__swapChainFramebuffers = []
vkDestroyPipeline(self.__device, self.__pipeline, None)
vkDestroyPipelineLayout(self.__device, self.__pipelineLayout, None)
vkDestroyRenderPass(self.__device, self.__renderpass, None)
[vkDestroyImageView(self.__device, i, None) for i in self.__swapChainImageViews]
self.__swapChainImageViews = []
vkDestroySwapchainKHR(self.__device, self.__swapChain, None)
def __recreateSwapChain(self):
vkDeviceWaitIdle(self.__device)
self.__cleanupSwapChain()
self.__createSwapChain()
self.__createImageViews()
self.__createRenderPass()
self.__createGraphicsPipeline()
self.__createDepthResources()
self.__createFrambuffers()
self.__createCommandBuffers()
def initVulkan(self):
self.__cretaeInstance()
self.__setupDebugCallback()
self.__createSurface()
self.__pickPhysicalDevice()
self.__createLogicalDevice()
self.__createSwapChain()
self.__createImageViews()
self.__createRenderPass()
self.__createDescriptorSetLayout()
self.__createGraphicsPipeline()
self.__createCommandPool()
self.__createDepthResources()
self.__createFrambuffers()
self.__createTextureImage()
self.__createTextureImageView()
self.__createTextureSampler()
self.__loadModel()
self.__createVertexBuffer()
self.__createIndexBuffer()
self.__createUniformBuffer()
self.__createDescriptorPool()
self.__createDescriptorSet()
self.__createCommandBuffers()
self.__createSemaphores()
def __cretaeInstance(self):
if enableValidationLayers and not self.__checkValidationLayerSupport():
raise Exception("validation layers requested, but not available!")
appInfo = VkApplicationInfo(
# sType=VK_STRUCTURE_TYPE_APPLICATION_INFO,
pApplicationName='Python VK',
applicationVersion=VK_MAKE_VERSION(1, 0, 0),
pEngineName='pyvulkan',
engineVersion=VK_MAKE_VERSION(1, 0, 0),
apiVersion=VK_API_VERSION
)
extenstions = self.__getRequiredExtensions()
if enableValidationLayers:
instanceInfo = VkInstanceCreateInfo(
pApplicationInfo=appInfo,
# enabledLayerCount=len(validationLayers),
ppEnabledLayerNames=validationLayers,
# enabledExtensionCount=len(extenstions),
ppEnabledExtensionNames=extenstions
)
else:
instanceInfo = VkInstanceCreateInfo(
pApplicationInfo=appInfo,
enabledLayerCount=0,
# enabledExtensionCount=len(extenstions),
ppEnabledExtensionNames=extenstions
)
self.__instance = vkCreateInstance(instanceInfo, None)
InstanceProcAddr.T = self.__instance
def __setupDebugCallback(self):
if not enableValidationLayers:
return
createInfo = VkDebugReportCallbackCreateInfoEXT(
flags=VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_ERROR_BIT_EXT,
pfnCallback=debugCallback
)
self.__callbcak = vkCreateDebugReportCallbackEXT(self.__instance, createInfo, None)
def __createSurface(self):
if sys.platform == 'win32':
hwnd = self.winId()
hinstance = Win32misc.getInstance(hwnd)
createInfo = VkWin32SurfaceCreateInfoKHR(
hinstance=hinstance,
hwnd=hwnd
)
self.__surface = vkCreateWin32SurfaceKHR(self.__instance, createInfo, None)
# elif sys.platform == 'linux':
# pass
def __pickPhysicalDevice(self):
physicalDevices = vkEnumeratePhysicalDevices(self.__instance)
for device in physicalDevices:
if self.__isDeviceSuitable(device):
self.__physicalDevice = device
break
assert self.__physicalDevice != None
def __createLogicalDevice(self):
indices = self.__findQueueFamilies(self.__physicalDevice)
uniqueQueueFamilies = {}.fromkeys([indices.graphicsFamily, indices.presentFamily])
queueCreateInfos = []
for i in uniqueQueueFamilies:
queueCreateInfo = VkDeviceQueueCreateInfo(
queueFamilyIndex=i,
queueCount=1,
pQueuePriorities=[1.0]
)
queueCreateInfos.append(queueCreateInfo)
deviceFeatures = VkPhysicalDeviceFeatures()
deviceFeatures.samplerAnisotropy = True
if enableValidationLayers:
createInfo = VkDeviceCreateInfo(
# queueCreateInfoCount=len(queueCreateInfos),
pQueueCreateInfos=queueCreateInfos,
# enabledExtensionCount=len(deviceExtensions),
ppEnabledExtensionNames=deviceExtensions,
# enabledLayerCount=len(validationLayers),
ppEnabledLayerNames=validationLayers,
pEnabledFeatures=deviceFeatures
)
else:
createInfo = VkDeviceCreateInfo(
queueCreateInfoCount=1,
pQueueCreateInfos=queueCreateInfo,
# enabledExtensionCount=len(deviceExtensions),
ppEnabledExtensionNames=deviceExtensions,
enabledLayerCount=0,
pEnabledFeatures=deviceFeatures
)
self.__device = vkCreateDevice(self.__physicalDevice, createInfo, None)
DeviceProcAddr.T = self.__device
self.__graphicQueue = vkGetDeviceQueue(self.__device, indices.graphicsFamily, 0)
self.__presentQueue = vkGetDeviceQueue(self.__device, indices.presentFamily, 0)
def __createSwapChain(self):
swapChainSupport = self.__querySwapChainSupport(self.__physicalDevice)
surfaceFormat = self.__chooseSwapSurfaceFormat(swapChainSupport.formats)
presentMode = self.__chooseSwapPresentMode(swapChainSupport.presentModes)
extent = self.__chooseSwapExtent(swapChainSupport.capabilities)
imageCount = swapChainSupport.capabilities.minImageCount + 1
if swapChainSupport.capabilities.maxImageCount > 0 and imageCount > swapChainSupport.capabilities.maxImageCount:
imageCount = swapChainSupport.capabilities.maxImageCount
indices = self.__findQueueFamilies(self.__physicalDevice)
queueFamily = {}.fromkeys([indices.graphicsFamily, indices.presentFamily])
queueFamilies = list(queueFamily.keys())
if len(queueFamilies) > 1:
createInfo = VkSwapchainCreateInfoKHR(
surface=self.__surface,
minImageCount=imageCount,
imageFormat=surfaceFormat.format,
imageColorSpace=surfaceFormat.colorSpace,
imageExtent=extent,
imageArrayLayers=1,
imageUsage=VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
# queueFamilyIndexCount=len(queueFamilies),
pQueueFamilyIndices=queueFamilies,
imageSharingMode=VK_SHARING_MODE_CONCURRENT,
preTransform=swapChainSupport.capabilities.currentTransform,
compositeAlpha=VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR,
presentMode=presentMode,
clipped=True
)
else:
createInfo = VkSwapchainCreateInfoKHR(
surface=self.__surface,
minImageCount=imageCount,
imageFormat=surfaceFormat.format,
imageColorSpace=surfaceFormat.colorSpace,
imageExtent=extent,
imageArrayLayers=1,
imageUsage=VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
# queueFamilyIndexCount=len(queueFamilies),
pQueueFamilyIndices=queueFamilies,
imageSharingMode=VK_SHARING_MODE_EXCLUSIVE,
preTransform=swapChainSupport.capabilities.currentTransform,
compositeAlpha=VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR,
presentMode=presentMode,
clipped=True
)
self.__swapChain = vkCreateSwapchainKHR(self.__device, createInfo, None)
assert self.__swapChain != None
self.__swapChainImages = vkGetSwapchainImagesKHR(self.__device, self.__swapChain)
self.__swapChainImageFormat = surfaceFormat.format
self.__swapChainExtent = extent
def __createImageViews(self):
self.__swapChainImageViews = []
for i, image in enumerate(self.__swapChainImages):
self.__swapChainImageViews.append(self.__createImageView(image, self.__swapChainImageFormat, VK_IMAGE_ASPECT_COLOR_BIT))
def __createRenderPass(self):
colorAttachment = VkAttachmentDescription(
format=self.__swapChainImageFormat,
samples=VK_SAMPLE_COUNT_1_BIT,
loadOp=VK_ATTACHMENT_LOAD_OP_CLEAR,
storeOp=VK_ATTACHMENT_STORE_OP_STORE,
stencilLoadOp=VK_ATTACHMENT_LOAD_OP_DONT_CARE,
stencilStoreOp=VK_ATTACHMENT_STORE_OP_DONT_CARE,
initialLayout=VK_IMAGE_LAYOUT_UNDEFINED,
finalLayout=VK_IMAGE_LAYOUT_PRESENT_SRC_KHR
)
depthAttachment = VkAttachmentDescription(
format=self.depthFormat,
samples=VK_SAMPLE_COUNT_1_BIT,
loadOp=VK_ATTACHMENT_LOAD_OP_CLEAR,
storeOp=VK_ATTACHMENT_STORE_OP_DONT_CARE,
stencilLoadOp=VK_ATTACHMENT_LOAD_OP_DONT_CARE,
stencilStoreOp=VK_ATTACHMENT_STORE_OP_DONT_CARE,
initialLayout=VK_IMAGE_LAYOUT_UNDEFINED,
finalLayout=VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL
)
colorAttachmentRef = VkAttachmentReference(
0,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL
)
depthAttachmentRef = VkAttachmentReference(
1,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL
)
subpass = VkSubpassDescription(
pipelineBindPoint=VK_PIPELINE_BIND_POINT_GRAPHICS,
pColorAttachments=[colorAttachmentRef],
pDepthStencilAttachment=[depthAttachmentRef]
)
dependency = VkSubpassDependency(
srcSubpass=VK_SUBPASS_EXTERNAL,
dstSubpass=0,
srcStageMask=VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
srcAccessMask=0,
dstStageMask=VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
dstAccessMask=VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT
)
renderPassInfo = VkRenderPassCreateInfo(
pAttachments=[colorAttachment, depthAttachment],
pSubpasses=[subpass],
pDependencies=[dependency]
)
self.__renderpass = vkCreateRenderPass(self.__device, renderPassInfo, None)
def __createDescriptorSetLayout(self):
uboLayoutBinding = VkDescriptorSetLayoutBinding(
binding=0,
descriptorType=VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
descriptorCount=1,
stageFlags=VK_SHADER_STAGE_VERTEX_BIT
)
samplerLayoutBinding = VkDescriptorSetLayoutBinding(
binding=1,
descriptorType=VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
descriptorCount=1,
stageFlags=VK_SHADER_STAGE_FRAGMENT_BIT
)
layoutInfo = VkDescriptorSetLayoutCreateInfo(
pBindings=[uboLayoutBinding, samplerLayoutBinding]
)
self.__descriptorSetLayout = vkCreateDescriptorSetLayout(self.__device, layoutInfo, None)
def __createGraphicsPipeline(self):
vertexShaderMode = self.__createShaderModule('shader/vert.spv')
fragmentShaderMode = self.__createShaderModule('shader/frag.spv')
vertexShaderStageInfo = VkPipelineShaderStageCreateInfo(
stage=VK_SHADER_STAGE_VERTEX_BIT,
module=vertexShaderMode,
pName='main'
)
fragmentShaderStageInfo = VkPipelineShaderStageCreateInfo(
stage=VK_SHADER_STAGE_FRAGMENT_BIT,
module=fragmentShaderMode,
pName='main'
)
shaderStageInfos = [vertexShaderStageInfo, fragmentShaderStageInfo]
bindingDescription = Vertex.getBindingDescription()
attributeDescription = Vertex.getAttributeDescriptions()
vertexInputInfo = VkPipelineVertexInputStateCreateInfo(
# vertexBindingDescriptionCount=0,
pVertexBindingDescriptions=[bindingDescription],
# vertexAttributeDescriptionCount=0,
pVertexAttributeDescriptions=attributeDescription,
)
inputAssembly = VkPipelineInputAssemblyStateCreateInfo(
topology=VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
primitiveRestartEnable=False
)
viewport = VkViewport(0.0, 0.0,
float(self.__swapChainExtent.width),
float(self.__swapChainExtent.height),
0.0, 1.0)
scissor = VkRect2D([0, 0], self.__swapChainExtent)
viewportStage = VkPipelineViewportStateCreateInfo(
viewportCount=1,
pViewports=viewport,
scissorCount=1,
pScissors=scissor
)
rasterizer = VkPipelineRasterizationStateCreateInfo(
depthClampEnable=False,
rasterizerDiscardEnable=False,
polygonMode=VK_POLYGON_MODE_FILL,
lineWidth=1.0,
cullMode=VK_CULL_MODE_BACK_BIT,
frontFace=VK_FRONT_FACE_CLOCKWISE,
depthBiasEnable=False
)
multisampling = VkPipelineMultisampleStateCreateInfo(
sampleShadingEnable=False,
rasterizationSamples=VK_SAMPLE_COUNT_1_BIT
)
depthStencil = VkPipelineDepthStencilStateCreateInfo(
depthTestEnable=True,
depthWriteEnable=True,
depthCompareOp=VK_COMPARE_OP_LESS,
depthBoundsTestEnable=False,
stencilTestEnable=False
)
colorBlendAttachment = VkPipelineColorBlendAttachmentState(
colorWriteMask=VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT,
blendEnable=False
)
colorBending = VkPipelineColorBlendStateCreateInfo(
logicOpEnable=False,
logicOp=VK_LOGIC_OP_COPY,
attachmentCount=1,
pAttachments=colorBlendAttachment,
blendConstants=[0.0, 0.0, 0.0, 0.0]
)
pipelineLayoutInfo = VkPipelineLayoutCreateInfo(
# setLayoutCount=0,
pushConstantRangeCount=0,
pSetLayouts=[self.__descriptorSetLayout]
)
self.__pipelineLayout = vkCreatePipelineLayout(self.__device, pipelineLayoutInfo, None)
pipelineInfo = VkGraphicsPipelineCreateInfo(
# stageCount=len(shaderStageInfos),
pStages=shaderStageInfos,
pVertexInputState=vertexInputInfo,
pInputAssemblyState=inputAssembly,
pViewportState=viewportStage,
pRasterizationState=rasterizer,
pMultisampleState=multisampling,
pColorBlendState=colorBending,
pDepthStencilState=depthStencil,
layout=self.__pipelineLayout,
renderPass=self.__renderpass,
subpass=0,
basePipelineHandle=VK_NULL_HANDLE
)
self.__pipeline = vkCreateGraphicsPipelines(self.__device, VK_NULL_HANDLE, 1, pipelineInfo, None)#[0]
vkDestroyShaderModule(self.__device, vertexShaderMode, None)
vkDestroyShaderModule(self.__device, fragmentShaderMode, None)
def __createFrambuffers(self):
self.__swapChainFramebuffers = []
for i, iv in enumerate(self.__swapChainImageViews):
framebufferInfo = VkFramebufferCreateInfo(
renderPass=self.__renderpass,
pAttachments=[iv, self.__depthImageView],
width=self.__swapChainExtent.width,
height=self.__swapChainExtent.height,
layers=1
)
self.__swapChainFramebuffers.append(vkCreateFramebuffer(self.__device, framebufferInfo, None))
def __createCommandPool(self):
queueFamilyIndices = self.__findQueueFamilies(self.__physicalDevice)
createInfo = VkCommandPoolCreateInfo(
queueFamilyIndex=queueFamilyIndices.graphicsFamily
)
self.__commandPool = vkCreateCommandPool(self.__device, createInfo, None)
def __createDepthResources(self):
depthFormat = self.depthFormat
self.__depthImage, self.__depthImageMemory = self.__createImage(self.__swapChainExtent.width,
self.__swapChainExtent.height,
depthFormat,
VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT)
self.__depthImageView = self.__createImageView(self.__depthImage, depthFormat, VK_IMAGE_ASPECT_DEPTH_BIT)
self.__transitionImageLayout(self.__depthImage, depthFormat, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL)
def __findSupportedFormat(self, candidates, tiling, feature):
for i in candidates:
props = vkGetPhysicalDeviceFormatProperties(self.__physicalDevice, i)
if tiling == VK_IMAGE_TILING_LINEAR and (props.linearTilingFeatures & feature == feature):
return i
elif tiling == VK_IMAGE_TILING_OPTIMAL and (props.optimalTilingFeatures & feature == feature):
return i
return -1
@property
def depthFormat(self):
return self.__findSupportedFormat([VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT],
VK_IMAGE_TILING_OPTIMAL,
VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT)
def hasStencilComponent(self, fm):
return fm == VK_FORMAT_D32_SFLOAT_S8_UINT or fm == VK_FORMAT_D24_UNORM_S8_UINT
def __createTextureImage(self):
_image = Image.open(self.texturePath)
_image.putalpha(1)
width = _image.width
height = _image.height
imageSize = width * height * 4
stagingBuffer, stagingMem = self.__createBuffer(imageSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
data = vkMapMemory(self.__device, stagingMem, 0, imageSize, 0)
ffi.memmove(data, _image.tobytes(), imageSize)
vkUnmapMemory(self.__device, stagingMem)
del _image
self.__textureImage, self.__textureImageMemory = self.__createImage(width, height,
VK_FORMAT_R8G8B8A8_UNORM,
VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT)
self.__transitionImageLayout(self.__textureImage, VK_FORMAT_R8G8B8A8_UNORM,
VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL)
self.__copyBufferToImage(stagingBuffer, self.__textureImage, width, height)
self.__transitionImageLayout(self.__textureImage, VK_FORMAT_R8G8B8A8_UNORM,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL)
vkDestroyBuffer(self.__device, stagingBuffer, None)
vkFreeMemory(self.__device, stagingMem, None)
def __createTextureImageView(self):
self.__textureImageView = self.__createImageView(self.__textureImage, VK_FORMAT_R8G8B8A8_UNORM, VK_IMAGE_ASPECT_COLOR_BIT)
def __createTextureSampler(self):
samplerInfo = VkSamplerCreateInfo(
magFilter=VK_FILTER_LINEAR,
minFilter=VK_FILTER_LINEAR,
addressModeU=VK_SAMPLER_ADDRESS_MODE_REPEAT,
addressModeV=VK_SAMPLER_ADDRESS_MODE_REPEAT,
addressModeW=VK_SAMPLER_ADDRESS_MODE_REPEAT,
anisotropyEnable=True,
maxAnisotropy=16,
compareEnable=False,
compareOp=VK_COMPARE_OP_ALWAYS,
borderColor=VK_BORDER_COLOR_INT_OPAQUE_BLACK,
unnormalizedCoordinates=False
)
self.__textureSampler = vkCreateSampler(self.__device, samplerInfo, None)
def __createImageView(self, image, imFormat, aspectFlage):
ssr = VkImageSubresourceRange(
aspectFlage,
0, 1, 0, 1
)
viewInfo = VkImageViewCreateInfo(
image=image,
viewType=VK_IMAGE_VIEW_TYPE_2D,
format=imFormat,
subresourceRange=ssr
)
return vkCreateImageView(self.__device, viewInfo, None)
def __createImage(self, widht, height, imFormat, tiling, usage, properties):
imageInfo = VkImageCreateInfo(
imageType=VK_IMAGE_TYPE_2D,
extent=[widht, height, 1],
mipLevels=1,
arrayLayers=1,
format=imFormat,
samples=VK_SAMPLE_COUNT_1_BIT,
tiling=tiling,
usage=usage,
sharingMode=VK_SHARING_MODE_EXCLUSIVE,
initialLayout=VK_IMAGE_LAYOUT_UNDEFINED
)
image = vkCreateImage(self.__device, imageInfo, None)
memReuirements = vkGetImageMemoryRequirements(self.__device, image)
allocInfo = VkMemoryAllocateInfo(
allocationSize=memReuirements.size,
memoryTypeIndex=self.__findMemoryType(memReuirements.memoryTypeBits, properties)
)
imageMemory = vkAllocateMemory(self.__device, allocInfo, None)
vkBindImageMemory(self.__device, image, imageMemory, 0)
return (image, imageMemory)
def __transitionImageLayout(self, image, imFormat, oldLayout, newLayout):
cmdBuffer = self.__beginSingleTimeCommands()
subresourceRange = VkImageSubresourceRange(
aspectMask=VK_IMAGE_ASPECT_COLOR_BIT,
baseMipLevel=0,
levelCount=1,
baseArrayLayer=0,
layerCount=1
)
if newLayout == VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL:
subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT
if self.hasStencilComponent(imFormat):
subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT
barrier = VkImageMemoryBarrier(
oldLayout=oldLayout,
newLayout=newLayout,
srcQueueFamilyIndex=VK_QUEUE_FAMILY_IGNORED,
dstQueueFamilyIndex=VK_QUEUE_FAMILY_IGNORED,
image=image,
subresourceRange=subresourceRange
)
sourceStage = 0
destinationStage = 0
if oldLayout == VK_IMAGE_LAYOUT_UNDEFINED and newLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL:
barrier.srcAccessMask = 0
barrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT
sourceStage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT
destinationStage = VK_PIPELINE_STAGE_TRANSFER_BIT
elif oldLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL and newLayout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL:
barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT
barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT
sourceStage = VK_PIPELINE_STAGE_TRANSFER_BIT
destinationStage = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT
elif oldLayout == VK_IMAGE_LAYOUT_UNDEFINED and newLayout == VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL:
barrier.srcAccessMask = 0
barrier.dstAccessMask = VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT | VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT
sourceStage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT
destinationStage = VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT
else:
raise Exception('unsupported layout transition!')
vkCmdPipelineBarrier(cmdBuffer,
sourceStage,
destinationStage,
0,
0, None,
0, None,
1, barrier)
self.__endSingleTimeCommands(cmdBuffer)
def __copyBufferToImage(self, buffer, image, width, height):
cmdbuffer = self.__beginSingleTimeCommands()
subresource = VkImageSubresourceLayers(
aspectMask=VK_IMAGE_ASPECT_COLOR_BIT,
mipLevel=0,
baseArrayLayer=0,
layerCount=1
)
region = VkBufferImageCopy(
bufferOffset=0,
bufferRowLength=0,
bufferImageHeight=0,
imageSubresource=subresource,
imageOffset=[0, 0],
imageExtent=[width, height, 1]
)
vkCmdCopyBufferToImage(cmdbuffer, buffer, image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, region)
self.__endSingleTimeCommands(cmdbuffer)
def __loadModel(self):
startTime = time.time()