148 lines
6.0 KiB
C++
148 lines
6.0 KiB
C++
#include "ge_vulkan_fbo_texture.hpp"
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#include "ge_main.hpp"
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#include "ge_vulkan_depth_texture.hpp"
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#include "ge_vulkan_driver.hpp"
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#include <array>
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#include <exception>
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namespace GE
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{
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GEVulkanFBOTexture::GEVulkanFBOTexture(GEVulkanDriver* vk,
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const core::dimension2d<u32>& size,
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bool create_depth)
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: GEVulkanTexture()
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{
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m_vk = vk;
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m_vulkan_device = m_vk->getDevice();
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m_image = VK_NULL_HANDLE;
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m_vma_allocation = VK_NULL_HANDLE;
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m_has_mipmaps = false;
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m_locked_data = NULL;
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m_size = m_orig_size = m_max_size = size;
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m_texture_size = m_size.Width * m_size.Height * 4;
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m_internal_format = VK_FORMAT_R8G8B8A8_UNORM;
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if (!createImage(VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
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VK_IMAGE_USAGE_SAMPLED_BIT))
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throw std::runtime_error("createImage failed for fbo texture");
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if (!createImageView(VK_IMAGE_ASPECT_COLOR_BIT))
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throw std::runtime_error("createImageView failed for fbo texture");
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m_depth_texture = NULL;
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m_rtt_render_pass = VK_NULL_HANDLE;
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m_rtt_frame_buffer = VK_NULL_HANDLE;
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if (create_depth)
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m_depth_texture = new GEVulkanDepthTexture(m_vk, size);
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} // GEVulkanFBOTexture
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// ----------------------------------------------------------------------------
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GEVulkanFBOTexture::~GEVulkanFBOTexture()
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{
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delete m_depth_texture;
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if (m_rtt_frame_buffer != VK_NULL_HANDLE)
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{
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clearVulkanData();
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vkDestroyFramebuffer(m_vk->getDevice(), m_rtt_frame_buffer, NULL);
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m_vk->handleDeletedTextures();
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m_image_view.reset();
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m_image = VK_NULL_HANDLE;
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m_vma_allocation = VK_NULL_HANDLE;
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}
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if (m_rtt_render_pass != VK_NULL_HANDLE)
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vkDestroyRenderPass(m_vk->getDevice(), m_rtt_render_pass, NULL);
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} // ~GEVulkanFBOTexture
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// ----------------------------------------------------------------------------
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void GEVulkanFBOTexture::createRTT()
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{
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if (!m_depth_texture)
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return;
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std::array<VkAttachmentDescription, 2> attchment_desc = {};
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// Color attachment
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attchment_desc[0].format = m_internal_format;
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attchment_desc[0].samples = VK_SAMPLE_COUNT_1_BIT;
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attchment_desc[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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attchment_desc[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
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attchment_desc[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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attchment_desc[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
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attchment_desc[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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attchment_desc[0].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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// Depth attachment
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attchment_desc[1].format = m_depth_texture->getInternalFormat();
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attchment_desc[1].samples = VK_SAMPLE_COUNT_1_BIT;
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attchment_desc[1].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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attchment_desc[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
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attchment_desc[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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attchment_desc[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
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attchment_desc[1].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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attchment_desc[1].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
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VkAttachmentReference color_reference = { 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL };
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VkAttachmentReference depth_reference = { 1, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL };
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VkSubpassDescription subpass_desc = {};
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subpass_desc.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
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subpass_desc.colorAttachmentCount = 1;
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subpass_desc.pColorAttachments = &color_reference;
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subpass_desc.pDepthStencilAttachment = &depth_reference;
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// Use subpass dependencies for layout transitions
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std::array<VkSubpassDependency, 2> dependencies;
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dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
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dependencies[0].dstSubpass = 0;
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dependencies[0].srcStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
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dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
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dependencies[0].srcAccessMask = VK_ACCESS_SHADER_READ_BIT;
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dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
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dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
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dependencies[1].srcSubpass = 0;
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dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
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dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
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dependencies[1].dstStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
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dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
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dependencies[1].dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
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dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
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// Create the actual render pass
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VkRenderPassCreateInfo render_pass_info = {};
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render_pass_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
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render_pass_info.attachmentCount = attchment_desc.size();
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render_pass_info.pAttachments = attchment_desc.data();
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render_pass_info.subpassCount = 1;
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render_pass_info.pSubpasses = &subpass_desc;
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render_pass_info.dependencyCount = dependencies.size();
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render_pass_info.pDependencies = dependencies.data();
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if (vkCreateRenderPass(m_vk->getDevice(), &render_pass_info, NULL,
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&m_rtt_render_pass) != VK_SUCCESS)
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throw std::runtime_error("vkCreateRenderPass failed in createFBOdata");
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std::array<VkImageView, 2> attachments =
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{{
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*(m_image_view.get()),
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(VkImageView)m_depth_texture->getTextureHandler(),
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}};
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VkFramebufferCreateInfo framebuffer_info = {};
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framebuffer_info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
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framebuffer_info.renderPass = m_rtt_render_pass;
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framebuffer_info.attachmentCount = attachments.size();
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framebuffer_info.pAttachments = attachments.data();
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framebuffer_info.width = m_size.Width;
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framebuffer_info.height = m_size.Height;
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framebuffer_info.layers = 1;
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if (vkCreateFramebuffer(m_vk->getDevice(), &framebuffer_info,
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NULL, &m_rtt_frame_buffer) != VK_SUCCESS)
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throw std::runtime_error("vkCreateFramebuffer failed in createFBOdata");
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} // createRTT
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}
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