110 lines
3.4 KiB
C++
110 lines
3.4 KiB
C++
#include"RenderSurface.h"
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#include"VKInstance.h"
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#include<hgl/type/Smart.h>
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VK_NAMESPACE_BEGIN
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VkSurfaceKHR CreateSurface(VkInstance,Window *);
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namespace
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{
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VkExtent2D GetSwapchainExtent(VkSurfaceCapabilitiesKHR &surface_caps,int width,int height)
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{
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if(surface_caps.currentExtent.width==0xFFFFFFFF)
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{
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VkExtent2D swapchain_extent;
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swapchain_extent.width=width;
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swapchain_extent.height=height;
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if(swapchain_extent.width<surface_caps.minImageExtent.width)swapchain_extent.width=surface_caps.minImageExtent.width;else
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if(swapchain_extent.width>surface_caps.maxImageExtent.width)swapchain_extent.width=surface_caps.maxImageExtent.width;
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if(swapchain_extent.height<surface_caps.minImageExtent.height)swapchain_extent.height=surface_caps.minImageExtent.height;else
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if(swapchain_extent.height>surface_caps.maxImageExtent.height)swapchain_extent.height=surface_caps.maxImageExtent.height;
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return swapchain_extent;
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}
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else
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{
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return surface_caps.currentExtent;
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}
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}
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VkDevice CreateDevice(VkInstance instance,VkPhysicalDevice physical_device,int family_index)
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{
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float queue_priorities[1]={0.0};
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VkDeviceQueueCreateInfo queue_info;
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queue_info.queueFamilyIndex=family_index;
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queue_info.sType=VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
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queue_info.pNext=nullptr;
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queue_info.queueCount=1;
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queue_info.pQueuePriorities=queue_priorities;
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VkDeviceCreateInfo create_info={};
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const char *ext_list[1]={VK_KHR_SWAPCHAIN_EXTENSION_NAME};
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create_info.sType=VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
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create_info.pNext=nullptr;
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create_info.queueCreateInfoCount=1;
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create_info.pQueueCreateInfos=&queue_info;
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create_info.enabledExtensionCount=1;
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create_info.ppEnabledExtensionNames=ext_list;
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create_info.enabledLayerCount=0;
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create_info.ppEnabledLayerNames=nullptr;
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create_info.pEnabledFeatures=nullptr;
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VkDevice device;
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if(vkCreateDevice(physical_device,&create_info,nullptr,&device)==VK_SUCCESS)
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return device;
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return nullptr;
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}
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VkCommandPool CreateCommandPool(VkDevice device,int family_index)
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{
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VkCommandPoolCreateInfo cmd_pool_info={};
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cmd_pool_info.sType=VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
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cmd_pool_info.pNext=nullptr;
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cmd_pool_info.queueFamilyIndex=family_index;
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cmd_pool_info.flags=0;
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VkCommandPool cmd_pool;
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if(vkCreateCommandPool(device,&cmd_pool_info,nullptr,&cmd_pool)==VK_SUCCESS)
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return cmd_pool;
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return(nullptr);
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}
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}//namespace
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RenderSurface *CreateRenderSuface(VkInstance inst,VkPhysicalDevice physical_device,Window *win)
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{
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VkSurfaceKHR surface=CreateSurface(inst,win);
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if(!surface)
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return(nullptr);
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RefRenderSurfaceAttribute rsa=new RenderSurfaceAttribute(inst,physical_device,surface);
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rsa->swapchain_extent=GetSwapchainExtent(rsa->surface_caps,win->GetWidth(),win->GetHeight());
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if(rsa->family_index==-1)
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return(nullptr);
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rsa->device=CreateDevice(inst,physical_device,rsa->family_index);
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if(!rsa->device)
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return(nullptr);
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rsa->cmd_pool=CreateCommandPool(rsa->device,rsa->family_index);
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if(!rsa->cmd_pool)
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return(nullptr);
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return(new RenderSurface(rsa));
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}
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VK_NAMESPACE_END
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