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#include "rendertarget.hpp"
#include "VkEngine.h"
#include "VulkanSwapChain.hpp"
vks::RenderTarget::RenderTarget(ptrVkDev _device, VkSampleCountFlagBits _samples) {
device = _device;
samples = _samples;
}
vks::RenderTarget::~RenderTarget () {
if (swapChain)
swapChain->boundRenderTargets.erase(std::remove(swapChain->boundRenderTargets.begin(),
swapChain->boundRenderTargets.end(), this), swapChain->boundRenderTargets.end());
for (uint32_t i = 0; i < frameBuffers.size(); i++)
vkDestroyFramebuffer(device->dev, frameBuffers[i], nullptr);
vkDestroyRenderPass (device->dev, renderPass, VK_NULL_HANDLE);
for(uint i=0; i<attachments.size(); i++)
attachments[i].destroy();
}
/** @brief destroy texture objects */
void vks::RenderTarget::cleanupAttachments () {
for(uint i=0; i<attachments.size(); i++)
if (i!=presentableAttachment)
attachments[i].destroy();
attachments.clear();
}
void vks::RenderTarget::createDefaultOffscreenTarget (uint32_t _width, uint32_t _height, VkFormat _colorFormat, VkFormat _depthFormat) {
width = _width;
height = _height;
createAttachments (swapChain->infos.imageFormat, swapChain->depthFormat);
}
void vks::RenderTarget::createDefaultPresentableTarget (ptrSwapchain _swapChain) {
swapChain = _swapChain;
swapChain->boundRenderTargets.push_back (this);
width = swapChain->infos.imageExtent.width;
height = swapChain->infos.imageExtent.height;
createAttachments (swapChain->infos.imageFormat, swapChain->depthFormat);
createDefaultRenderPass();
createFrameBuffers();
}
void vks::RenderTarget::updateSize () {
for (uint32_t i = 0; i < frameBuffers.size(); i++)
vkDestroyFramebuffer(swapChain->vke->device->dev, frameBuffers[i], nullptr);
cleanupAttachments ();
width = swapChain->infos.imageExtent.width;
height = swapChain->infos.imageExtent.height;
createAttachments (swapChain->infos.imageFormat, swapChain->depthFormat);
}
void vks::RenderTarget::createAttachments (VkFormat _colorFormat, VkFormat _depthFormat) {
if (samples > VK_SAMPLE_COUNT_1_BIT) {
attachments.resize(3);
presentableAttachment = 2;
attachments[0] = vks::Texture(device, VK_IMAGE_TYPE_2D, _colorFormat,
width, height,
VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, VK_IMAGE_TILING_OPTIMAL, 1, 1, 0,
samples);
attachments[0].createView(VK_IMAGE_VIEW_TYPE_2D, VK_IMAGE_ASPECT_COLOR_BIT,1,1);
attachments[1] = vks::Texture(device, VK_IMAGE_TYPE_2D, _depthFormat,
width, height,
VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT | VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, VK_IMAGE_TILING_OPTIMAL, 1, 1, 0,
samples);
attachments[1].createView(VK_IMAGE_VIEW_TYPE_2D, VK_IMAGE_ASPECT_DEPTH_BIT|VK_IMAGE_ASPECT_STENCIL_BIT);
}else {
attachments.resize(2);
presentableAttachment = 0;
attachments[1] = vks::Texture(device, VK_IMAGE_TYPE_2D, _depthFormat,
width, height,
VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT);
attachments[1].createView(VK_IMAGE_VIEW_TYPE_2D, VK_IMAGE_ASPECT_DEPTH_BIT|VK_IMAGE_ASPECT_STENCIL_BIT);
}
}
void vks::RenderTarget::createFrameBuffers()
{
std::vector<VkImageView> views;
views.resize(attachments.size());
for(uint i=0; i<attachments.size(); i++)
views[i] = attachments[i].view;
VkFramebufferCreateInfo frameBufferCI = {VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO};
frameBufferCI.renderPass = renderPass;
frameBufferCI.attachmentCount = (uint32_t)views.size();
frameBufferCI.pAttachments = views.data();
frameBufferCI.width = width;
frameBufferCI.height = height;
frameBufferCI.layers = 1;
if (swapChain) {
frameBuffers.resize(swapChain->imageCount);
for(uint j=0; j<swapChain->imageCount; j++){
views[presentableAttachment] = swapChain->buffers[j].view;
VK_CHECK_RESULT(vkCreateFramebuffer(device->dev, &frameBufferCI, nullptr, &frameBuffers[j]));
}
}else {
frameBuffers.resize(1);
VK_CHECK_RESULT(vkCreateFramebuffer(device->dev, &frameBufferCI, nullptr, &frameBuffers[0]));
}
}
void vks::RenderTarget::createDefaultRenderPass () {
VkAttachmentDescription rpAttachments[] = {
{0, //color
attachments[0].infos.format, samples,
VK_ATTACHMENT_LOAD_OP_CLEAR, VK_ATTACHMENT_STORE_OP_DONT_CARE,
VK_ATTACHMENT_LOAD_OP_DONT_CARE, VK_ATTACHMENT_STORE_OP_DONT_CARE,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL
},{0,//depth
attachments[1].infos.format, samples,
VK_ATTACHMENT_LOAD_OP_CLEAR, VK_ATTACHMENT_STORE_OP_STORE,
VK_ATTACHMENT_LOAD_OP_DONT_CARE, VK_ATTACHMENT_STORE_OP_DONT_CARE,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL
},{0,// resolve
swapChain->infos.imageFormat, VK_SAMPLE_COUNT_1_BIT,
VK_ATTACHMENT_LOAD_OP_DONT_CARE, VK_ATTACHMENT_STORE_OP_STORE,
VK_ATTACHMENT_LOAD_OP_DONT_CARE, VK_ATTACHMENT_STORE_OP_DONT_CARE,
VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_PRESENT_SRC_KHR
}
};
VkAttachmentReference colorReference = {0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL};
VkAttachmentReference depthReference = {1, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL};
VkAttachmentReference resolveReference = {presentableAttachment, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL};
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &colorReference;
subpass.pDepthStencilAttachment = &depthReference;
if (samples > VK_SAMPLE_COUNT_1_BIT && presentableAttachment >= 0)
subpass.pResolveAttachments = &resolveReference;
VkSubpassDependency dependencies[] =
{
{ VK_SUBPASS_EXTERNAL, 0,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
VK_ACCESS_COLOR_ATTACHMENT_READ_BIT, VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
VK_DEPENDENCY_BY_REGION_BIT},
{ 0, VK_SUBPASS_EXTERNAL,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT,
VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT, VK_ACCESS_MEMORY_READ_BIT,
VK_DEPENDENCY_BY_REGION_BIT},
};
VkRenderPassCreateInfo renderPassCI = {VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO};
renderPassCI.attachmentCount = attachments.size();
renderPassCI.pAttachments = rpAttachments;
renderPassCI.subpassCount = 1;
renderPassCI.pSubpasses = &subpass;
renderPassCI.dependencyCount = 2;
renderPassCI.pDependencies = dependencies;
VK_CHECK_RESULT(vkCreateRenderPass(swapChain->vke->device->dev, &renderPassCI, nullptr, &renderPass));
}
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