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Fold layout transitions into subpass (Refs #155), refactoring of offscreen render pass

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saschawillems 2016-08-13 18:38:13 +02:00
parent e74e37cc16
commit 60c817691e
2 changed files with 171 additions and 248 deletions
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4
android/radialblur/build.bat
View file

@ -6,13 +6,15 @@ if %ERRORLEVEL% EQU 0 (
mkdir "assets\shaders\base" mkdir "assets\shaders\base"
xcopy "..\..\data\shaders\base\*.spv" "assets\shaders\base" /Y xcopy "..\..\data\shaders\base\*.spv" "assets\shaders\base" /Y
mkdir "assets\shaders\radialblur" mkdir "assets\shaders\radialblur"
xcopy "..\..\data\shaders\radialblur\*.spv" "assets\shaders\radialblur" /Y xcopy "..\..\data\shaders\radialblur\*.spv" "assets\shaders\radialblur" /Y
mkdir "assets\models" mkdir "assets\models"
xcopy "..\..\data\models\glowsphere.dae" "assets\models" /Y xcopy "..\..\data\models\glowsphere.dae" "assets\models" /Y
mkdir "assets\textures"
xcopy "..\..\data\textures\particle_gradient_rgba.ktx" "assets\textures" /Y
mkdir "res\drawable" mkdir "res\drawable"
xcopy "..\..\android\images\icon.png" "res\drawable" /Y xcopy "..\..\android\images\icon.png" "res\drawable" /Y

415
debugmarker/debugmarker.cpp
View file

@ -215,14 +215,17 @@ public:
VkDeviceMemory mem; VkDeviceMemory mem;
VkImageView view; VkImageView view;
}; };
struct FrameBuffer { struct OffscreenPass {
int32_t width, height; int32_t width, height;
VkFramebuffer frameBuffer; VkFramebuffer frameBuffer;
FrameBufferAttachment color, depth; FrameBufferAttachment color, depth;
vkTools::VulkanTexture textureTarget; VkRenderPass renderPass;
} offScreenFrameBuf; VkSampler sampler;
VkDescriptorImageInfo descriptor;
VkCommandBuffer offScreenCmdBuffer = VK_NULL_HANDLE; VkCommandBuffer commandBuffer = VK_NULL_HANDLE;
// Semaphore used to synchronize between offscreen and final scene render pass
VkSemaphore semaphore = VK_NULL_HANDLE;
} offscreenPass;
// Random tag data // Random tag data
struct { struct {
@ -265,106 +268,29 @@ public:
vkTools::destroyUniformData(device, &uniformData.vsScene); vkTools::destroyUniformData(device, &uniformData.vsScene);
// Offscreen // Offscreen
// Texture target
textureLoader->destroyTexture(offScreenFrameBuf.textureTarget);
// Frame buffer
// Color attachment // Color attachment
vkDestroyImageView(device, offScreenFrameBuf.color.view, nullptr); vkDestroyImageView(device, offscreenPass.color.view, nullptr);
vkDestroyImage(device, offScreenFrameBuf.color.image, nullptr); vkDestroyImage(device, offscreenPass.color.image, nullptr);
vkFreeMemory(device, offScreenFrameBuf.color.mem, nullptr); vkFreeMemory(device, offscreenPass.color.mem, nullptr);
// Depth attachment // Depth attachment
vkDestroyImageView(device, offScreenFrameBuf.depth.view, nullptr); vkDestroyImageView(device, offscreenPass.depth.view, nullptr);
vkDestroyImage(device, offScreenFrameBuf.depth.image, nullptr); vkDestroyImage(device, offscreenPass.depth.image, nullptr);
vkFreeMemory(device, offScreenFrameBuf.depth.mem, nullptr); vkFreeMemory(device, offscreenPass.depth.mem, nullptr);
vkDestroyFramebuffer(device, offScreenFrameBuf.frameBuffer, nullptr);
vkDestroyRenderPass(device, offscreenPass.renderPass, nullptr);
vkDestroySampler(device, offscreenPass.sampler, nullptr);
vkDestroyFramebuffer(device, offscreenPass.frameBuffer, nullptr);
vkFreeCommandBuffers(device, cmdPool, 1, &offscreenPass.commandBuffer);
vkDestroySemaphore(device, offscreenPass.semaphore, nullptr);
} }
// Prepare a texture target and framebuffer for offscreen rendering // Prepare a texture target and framebuffer for offscreen rendering
void prepareOffscreen() void prepareOffscreen()
{ {
VkCommandBuffer cmdBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true); offscreenPass.width = OFFSCREEN_DIM;
offscreenPass.height = OFFSCREEN_DIM;
VkFormatProperties formatProperties;
// Get device properites for the requested texture format
vkGetPhysicalDeviceFormatProperties(physicalDevice, OFFSCREEN_FORMAT, &formatProperties);
// Check if blit destination is supported for the requested format
// Only try for optimal tiling, linear tiling usually won't support blit as destination anyway
assert(formatProperties.optimalTilingFeatures & VK_FORMAT_FEATURE_BLIT_DST_BIT);
// Texture target
vkTools::VulkanTexture *tex = &offScreenFrameBuf.textureTarget;
// Prepare blit target texture
tex->width = OFFSCREEN_DIM;
tex->height = OFFSCREEN_DIM;
VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
imageCreateInfo.format = OFFSCREEN_FORMAT;
imageCreateInfo.extent = { OFFSCREEN_DIM, OFFSCREEN_DIM, 1 };
imageCreateInfo.mipLevels = 1;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
// Texture will be sampled in a shader and is also the blit destination
imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &tex->image));
vkGetImageMemoryRequirements(device, tex->image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &(tex->deviceMemory)));
VK_CHECK_RESULT(vkBindImageMemory(device, tex->image, tex->deviceMemory, 0));
// Transform image layout to transfer destination
tex->imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
vkTools::setImageLayout(
cmdBuffer,
tex->image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
tex->imageLayout);
// Create sampler
VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
sampler.magFilter = OFFSCREEN_FILTER;
sampler.minFilter = OFFSCREEN_FILTER;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.mipLodBias = 0.0f;
sampler.maxAnisotropy = 0;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = 0.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &tex->sampler));
// Create image view
VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
view.image = VK_NULL_HANDLE;
view.viewType = VK_IMAGE_VIEW_TYPE_2D;
view.format = OFFSCREEN_FORMAT;
view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
view.image = tex->image;
VK_CHECK_RESULT(vkCreateImageView(device, &view, nullptr, &tex->view));
// Name for debugging
DebugMarker::setObjectName(device, (uint64_t)tex->image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen texture target image");
DebugMarker::setObjectName(device, (uint64_t)tex->sampler, VK_DEBUG_REPORT_OBJECT_TYPE_SAMPLER_EXT, "Off-screen texture target sampler");
// Frame buffer
offScreenFrameBuf.width = OFFSCREEN_DIM;
offScreenFrameBuf.height = OFFSCREEN_DIM;
// Find a suitable depth format // Find a suitable depth format
VkFormat fbDepthFormat; VkFormat fbDepthFormat;
@ -375,49 +301,64 @@ public:
VkImageCreateInfo image = vkTools::initializers::imageCreateInfo(); VkImageCreateInfo image = vkTools::initializers::imageCreateInfo();
image.imageType = VK_IMAGE_TYPE_2D; image.imageType = VK_IMAGE_TYPE_2D;
image.format = OFFSCREEN_FORMAT; image.format = OFFSCREEN_FORMAT;
image.extent.width = offScreenFrameBuf.width; image.extent.width = offscreenPass.width;
image.extent.height = offScreenFrameBuf.height; image.extent.height = offscreenPass.height;
image.extent.depth = 1; image.extent.depth = 1;
image.mipLevels = 1; image.mipLevels = 1;
image.arrayLayers = 1; image.arrayLayers = 1;
image.samples = VK_SAMPLE_COUNT_1_BIT; image.samples = VK_SAMPLE_COUNT_1_BIT;
image.tiling = VK_IMAGE_TILING_OPTIMAL; image.tiling = VK_IMAGE_TILING_OPTIMAL;
// Image of the framebuffer is blit source // We will sample directly from the color attachment
image.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT; image.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
image.flags = 0;
VkMemoryAllocateInfo memAlloc = vkTools::initializers::memoryAllocateInfo();
VkMemoryRequirements memReqs;
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offscreenPass.color.image));
vkGetImageMemoryRequirements(device, offscreenPass.color.image, &memReqs);
memAlloc.allocationSize = memReqs.size;
memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &offscreenPass.color.mem));
VK_CHECK_RESULT(vkBindImageMemory(device, offscreenPass.color.image, offscreenPass.color.mem, 0));
VkImageViewCreateInfo colorImageView = vkTools::initializers::imageViewCreateInfo(); VkImageViewCreateInfo colorImageView = vkTools::initializers::imageViewCreateInfo();
colorImageView.viewType = VK_IMAGE_VIEW_TYPE_2D; colorImageView.viewType = VK_IMAGE_VIEW_TYPE_2D;
colorImageView.format = OFFSCREEN_FORMAT; colorImageView.format = OFFSCREEN_FORMAT;
colorImageView.flags = 0;
colorImageView.subresourceRange = {}; colorImageView.subresourceRange = {};
colorImageView.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; colorImageView.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
colorImageView.subresourceRange.baseMipLevel = 0; colorImageView.subresourceRange.baseMipLevel = 0;
colorImageView.subresourceRange.levelCount = 1; colorImageView.subresourceRange.levelCount = 1;
colorImageView.subresourceRange.baseArrayLayer = 0; colorImageView.subresourceRange.baseArrayLayer = 0;
colorImageView.subresourceRange.layerCount = 1; colorImageView.subresourceRange.layerCount = 1;
colorImageView.image = offscreenPass.color.image;
VK_CHECK_RESULT(vkCreateImageView(device, &colorImageView, nullptr, &offscreenPass.color.view));
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offScreenFrameBuf.color.image)); // Create sampler to sample from the attachment in the fragment shader
vkGetImageMemoryRequirements(device, offScreenFrameBuf.color.image, &memReqs); VkSamplerCreateInfo samplerInfo = vkTools::initializers::samplerCreateInfo();
memAllocInfo.allocationSize = memReqs.size; samplerInfo.magFilter = OFFSCREEN_FILTER;
memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT); samplerInfo.minFilter = OFFSCREEN_FILTER;
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &offScreenFrameBuf.color.mem)); samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
VK_CHECK_RESULT(vkBindImageMemory(device, offScreenFrameBuf.color.image, offScreenFrameBuf.color.mem, 0)); samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
samplerInfo.addressModeV = samplerInfo.addressModeU;
vkTools::setImageLayout( samplerInfo.addressModeW = samplerInfo.addressModeU;
cmdBuffer, samplerInfo.mipLodBias = 0.0f;
offScreenFrameBuf.color.image, samplerInfo.maxAnisotropy = 0;
VK_IMAGE_ASPECT_COLOR_BIT, samplerInfo.minLod = 0.0f;
VK_IMAGE_LAYOUT_UNDEFINED, samplerInfo.maxLod = 1.0f;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL); samplerInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &samplerInfo, nullptr, &offscreenPass.sampler));
colorImageView.image = offScreenFrameBuf.color.image;
VK_CHECK_RESULT(vkCreateImageView(device, &colorImageView, nullptr, &offScreenFrameBuf.color.view));
// Depth stencil attachment // Depth stencil attachment
image.format = fbDepthFormat; image.format = fbDepthFormat;
image.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT; image.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offscreenPass.depth.image));
vkGetImageMemoryRequirements(device, offscreenPass.depth.image, &memReqs);
memAlloc.allocationSize = memReqs.size;
memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &offscreenPass.depth.mem));
VK_CHECK_RESULT(vkBindImageMemory(device, offscreenPass.depth.image, offscreenPass.depth.mem, 0));
VkImageViewCreateInfo depthStencilView = vkTools::initializers::imageViewCreateInfo(); VkImageViewCreateInfo depthStencilView = vkTools::initializers::imageViewCreateInfo();
depthStencilView.viewType = VK_IMAGE_VIEW_TYPE_2D; depthStencilView.viewType = VK_IMAGE_VIEW_TYPE_2D;
depthStencilView.format = fbDepthFormat; depthStencilView.format = fbDepthFormat;
@ -428,50 +369,110 @@ public:
depthStencilView.subresourceRange.levelCount = 1; depthStencilView.subresourceRange.levelCount = 1;
depthStencilView.subresourceRange.baseArrayLayer = 0; depthStencilView.subresourceRange.baseArrayLayer = 0;
depthStencilView.subresourceRange.layerCount = 1; depthStencilView.subresourceRange.layerCount = 1;
depthStencilView.image = offscreenPass.depth.image;
VK_CHECK_RESULT(vkCreateImageView(device, &depthStencilView, nullptr, &offscreenPass.depth.view));
VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offScreenFrameBuf.depth.image)); // Create a separate render pass for the offscreen rendering as it may differ from the one used for scene rendering
vkGetImageMemoryRequirements(device, offScreenFrameBuf.depth.image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &offScreenFrameBuf.depth.mem));
VK_CHECK_RESULT(vkBindImageMemory(device, offScreenFrameBuf.depth.image, offScreenFrameBuf.depth.mem, 0));
vkTools::setImageLayout( std::array<VkAttachmentDescription, 2> attchmentDescriptions = {};
cmdBuffer, // Color attachment
offScreenFrameBuf.depth.image, attchmentDescriptions[0].format = OFFSCREEN_FORMAT;
VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT, attchmentDescriptions[0].samples = VK_SAMPLE_COUNT_1_BIT;
VK_IMAGE_LAYOUT_UNDEFINED, attchmentDescriptions[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL); attchmentDescriptions[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attchmentDescriptions[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attchmentDescriptions[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attchmentDescriptions[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attchmentDescriptions[0].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
// Depth attachment
attchmentDescriptions[1].format = fbDepthFormat;
attchmentDescriptions[1].samples = VK_SAMPLE_COUNT_1_BIT;
attchmentDescriptions[1].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attchmentDescriptions[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attchmentDescriptions[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attchmentDescriptions[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attchmentDescriptions[1].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attchmentDescriptions[1].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
depthStencilView.image = offScreenFrameBuf.depth.image; VkAttachmentReference colorReference = { 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL };
VK_CHECK_RESULT(vkCreateImageView(device, &depthStencilView, nullptr, &offScreenFrameBuf.depth.view)); VkAttachmentReference depthReference = { 1, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL };
VkSubpassDescription subpassDescription = {};
subpassDescription.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpassDescription.colorAttachmentCount = 1;
subpassDescription.pColorAttachments = &colorReference;
subpassDescription.pDepthStencilAttachment = &depthReference;
// Use subpass dependencies for layout transitions
std::array<VkSubpassDependency, 2> dependencies;
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
dependencies[0].dstSubpass = 0;
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
dependencies[1].srcSubpass = 0;
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
// Create the actual renderpass
VkRenderPassCreateInfo renderPassInfo = {};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.attachmentCount = static_cast<uint32_t>(attchmentDescriptions.size());
renderPassInfo.pAttachments = attchmentDescriptions.data();
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpassDescription;
renderPassInfo.dependencyCount = static_cast<uint32_t>(dependencies.size());
renderPassInfo.pDependencies = dependencies.data();
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &offscreenPass.renderPass));
VkImageView attachments[2]; VkImageView attachments[2];
attachments[0] = offScreenFrameBuf.color.view; attachments[0] = offscreenPass.color.view;
attachments[1] = offScreenFrameBuf.depth.view; attachments[1] = offscreenPass.depth.view;
VkFramebufferCreateInfo fbufCreateInfo = vkTools::initializers::framebufferCreateInfo(); VkFramebufferCreateInfo fbufCreateInfo = vkTools::initializers::framebufferCreateInfo();
fbufCreateInfo.renderPass = renderPass; fbufCreateInfo.renderPass = offscreenPass.renderPass;
fbufCreateInfo.attachmentCount = 2; fbufCreateInfo.attachmentCount = 2;
fbufCreateInfo.pAttachments = attachments; fbufCreateInfo.pAttachments = attachments;
fbufCreateInfo.width = offScreenFrameBuf.width; fbufCreateInfo.width = offscreenPass.width;
fbufCreateInfo.height = offScreenFrameBuf.height; fbufCreateInfo.height = offscreenPass.height;
fbufCreateInfo.layers = 1; fbufCreateInfo.layers = 1;
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offScreenFrameBuf.frameBuffer));
VulkanExampleBase::flushCommandBuffer(cmdBuffer, queue, true); VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offscreenPass.frameBuffer));
// Command buffer for offscreen rendering // Fill a descriptor for later use in a descriptor set
offScreenCmdBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false); offscreenPass.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
offscreenPass.descriptor.imageView = offscreenPass.color.view;
offscreenPass.descriptor.sampler = offscreenPass.sampler;
// Name for debugging // Name some objects for debugging
DebugMarker::setObjectName(device, (uint64_t)offScreenFrameBuf.color.image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen color framebuffer"); DebugMarker::setObjectName(device, (uint64_t)offscreenPass.color.image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen color framebuffer");
DebugMarker::setObjectName(device, (uint64_t)offScreenFrameBuf.depth.image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen depth framebuffer"); DebugMarker::setObjectName(device, (uint64_t)offscreenPass.depth.image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen depth framebuffer");
DebugMarker::setObjectName(device, (uint64_t)offscreenPass.sampler, VK_DEBUG_REPORT_OBJECT_TYPE_SAMPLER_EXT, "Off-screen framebuffer default sampler");
} }
// Command buffer for rendering color only scene for glow // Command buffer for rendering color only scene for glow
void buildOffscreenCommandBuffer() void buildOffscreenCommandBuffer()
{ {
if (offscreenPass.commandBuffer == VK_NULL_HANDLE)
{
offscreenPass.commandBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false);
}
if (offscreenPass.semaphore == VK_NULL_HANDLE)
{
// Create a semaphore used to synchronize offscreen rendering and usage
VkSemaphoreCreateInfo semaphoreCreateInfo = vkTools::initializers::semaphoreCreateInfo();
VK_CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &offscreenPass.semaphore));
}
VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo(); VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
VkClearValue clearValues[2]; VkClearValue clearValues[2];
@ -479,107 +480,37 @@ public:
clearValues[1].depthStencil = { 1.0f, 0 }; clearValues[1].depthStencil = { 1.0f, 0 };
VkRenderPassBeginInfo renderPassBeginInfo = vkTools::initializers::renderPassBeginInfo(); VkRenderPassBeginInfo renderPassBeginInfo = vkTools::initializers::renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass; renderPassBeginInfo.renderPass = offscreenPass.renderPass;
renderPassBeginInfo.framebuffer = offScreenFrameBuf.frameBuffer; renderPassBeginInfo.framebuffer = offscreenPass.frameBuffer;
renderPassBeginInfo.renderArea.extent.width = offScreenFrameBuf.width; renderPassBeginInfo.renderArea.extent.width = offscreenPass.width;
renderPassBeginInfo.renderArea.extent.height = offScreenFrameBuf.height; renderPassBeginInfo.renderArea.extent.height = offscreenPass.height;
renderPassBeginInfo.clearValueCount = 2; renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = clearValues; renderPassBeginInfo.pClearValues = clearValues;
VK_CHECK_RESULT(vkBeginCommandBuffer(offScreenCmdBuffer, &cmdBufInfo)); VK_CHECK_RESULT(vkBeginCommandBuffer(offscreenPass.commandBuffer, &cmdBufInfo));
// Start a new debug marker region // Start a new debug marker region
DebugMarker::beginRegion(offScreenCmdBuffer, "Off-screen scene rendering", glm::vec4(1.0f, 0.78f, 0.05f, 1.0f)); DebugMarker::beginRegion(offscreenPass.commandBuffer, "Off-screen scene rendering", glm::vec4(1.0f, 0.78f, 0.05f, 1.0f));
VkViewport viewport = vkTools::initializers::viewport((float)offScreenFrameBuf.width, (float)offScreenFrameBuf.height, 0.0f, 1.0f); VkViewport viewport = vkTools::initializers::viewport((float)offscreenPass.width, (float)offscreenPass.height, 0.0f, 1.0f);
vkCmdSetViewport(offScreenCmdBuffer, 0, 1, &viewport); vkCmdSetViewport(offscreenPass.commandBuffer, 0, 1, &viewport);
VkRect2D scissor = vkTools::initializers::rect2D(offScreenFrameBuf.width, offScreenFrameBuf.height, 0, 0); VkRect2D scissor = vkTools::initializers::rect2D(offscreenPass.width, offscreenPass.height, 0, 0);
vkCmdSetScissor(offScreenCmdBuffer, 0, 1, &scissor); vkCmdSetScissor(offscreenPass.commandBuffer, 0, 1, &scissor);
vkCmdBeginRenderPass(offScreenCmdBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE); vkCmdBeginRenderPass(offscreenPass.commandBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindDescriptorSets(offScreenCmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSets.scene, 0, NULL); vkCmdBindDescriptorSets(offscreenPass.commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSets.scene, 0, NULL);
vkCmdBindPipeline(offScreenCmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.color); vkCmdBindPipeline(offscreenPass.commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.color);
// Draw glow scene // Draw glow scene
sceneGlow.draw(offScreenCmdBuffer); sceneGlow.draw(offscreenPass.commandBuffer);
vkCmdEndRenderPass(offScreenCmdBuffer); vkCmdEndRenderPass(offscreenPass.commandBuffer);
// Make sure color writes to the framebuffer are finished before using it as transfer source DebugMarker::endRegion(offscreenPass.commandBuffer);
vkTools::setImageLayout(
offScreenCmdBuffer,
offScreenFrameBuf.color.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
// Transform texture target to transfer destination VK_CHECK_RESULT(vkEndCommandBuffer(offscreenPass.commandBuffer));
vkTools::setImageLayout(
offScreenCmdBuffer,
offScreenFrameBuf.textureTarget.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
// Blit offscreen color buffer to our texture target
VkImageBlit imgBlit;
imgBlit.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imgBlit.srcSubresource.mipLevel = 0;
imgBlit.srcSubresource.baseArrayLayer = 0;
imgBlit.srcSubresource.layerCount = 1;
imgBlit.srcOffsets[0] = { 0, 0, 0 };
imgBlit.srcOffsets[1].x = offScreenFrameBuf.width;
imgBlit.srcOffsets[1].y = offScreenFrameBuf.height;
imgBlit.srcOffsets[1].z = 1;
imgBlit.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imgBlit.dstSubresource.mipLevel = 0;
imgBlit.dstSubresource.baseArrayLayer = 0;
imgBlit.dstSubresource.layerCount = 1;
imgBlit.dstOffsets[0] = { 0, 0, 0 };
imgBlit.dstOffsets[1].x = offScreenFrameBuf.textureTarget.width;
imgBlit.dstOffsets[1].y = offScreenFrameBuf.textureTarget.height;
imgBlit.dstOffsets[1].z = 1;
// Blit from framebuffer image to texture image
// vkCmdBlitImage does scaling and (if necessary and possible) also does format conversions
vkCmdBlitImage(
offScreenCmdBuffer,
offScreenFrameBuf.color.image,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
offScreenFrameBuf.textureTarget.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1,
&imgBlit,
VK_FILTER_LINEAR
);
// Transform framebuffer color attachment back
vkTools::setImageLayout(
offScreenCmdBuffer,
offScreenFrameBuf.color.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
// Transform texture target back to shader read
// Makes sure that writes to the texture are finished before
// it's accessed in the shader
vkTools::setImageLayout(
offScreenCmdBuffer,
offScreenFrameBuf.textureTarget.image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
DebugMarker::endRegion(offScreenCmdBuffer);
VK_CHECK_RESULT(vkEndCommandBuffer(offScreenCmdBuffer));
} }
// Load a model file as separate meshes into a scene // Load a model file as separate meshes into a scene
@ -962,12 +893,6 @@ public:
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.scene)); VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.scene));
VkDescriptorImageInfo texDescriptor =
vkTools::initializers::descriptorImageInfo(
offScreenFrameBuf.textureTarget.sampler,
offScreenFrameBuf.textureTarget.view,
VK_IMAGE_LAYOUT_GENERAL);
std::vector<VkWriteDescriptorSet> writeDescriptorSets = std::vector<VkWriteDescriptorSet> writeDescriptorSets =
{ {
// Binding 0 : Vertex shader uniform buffer // Binding 0 : Vertex shader uniform buffer
@ -981,7 +906,7 @@ public:
descriptorSets.scene, descriptorSets.scene,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
1, 1,
&texDescriptor) &offscreenPass.descriptor)
}; };
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL); vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
@ -1065,25 +990,22 @@ public:
// Color only pipeline // Color only pipeline
shaderStages[0] = loadShader(getAssetPath() + "shaders/debugmarker/colorpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT); shaderStages[0] = loadShader(getAssetPath() + "shaders/debugmarker/colorpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/debugmarker/colorpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT); shaderStages[1] = loadShader(getAssetPath() + "shaders/debugmarker/colorpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
pipelineCreateInfo.renderPass = offscreenPass.renderPass;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.color)); VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.color));
// Wire frame rendering pipeline // Wire frame rendering pipeline
rasterizationState.polygonMode = VK_POLYGON_MODE_LINE; rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
rasterizationState.lineWidth = 1.0f; rasterizationState.lineWidth = 1.0f;
pipelineCreateInfo.renderPass = renderPass;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wireframe)); VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wireframe));
// Post processing effect // Post processing effect
shaderStages[0] = loadShader(getAssetPath() + "shaders/debugmarker/postprocess.vert.spv", VK_SHADER_STAGE_VERTEX_BIT); shaderStages[0] = loadShader(getAssetPath() + "shaders/debugmarker/postprocess.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getAssetPath() + "shaders/debugmarker/postprocess.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT); shaderStages[1] = loadShader(getAssetPath() + "shaders/debugmarker/postprocess.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
depthStencilState.depthTestEnable = VK_FALSE; depthStencilState.depthTestEnable = VK_FALSE;
depthStencilState.depthWriteEnable = VK_FALSE; depthStencilState.depthWriteEnable = VK_FALSE;
rasterizationState.polygonMode = VK_POLYGON_MODE_FILL; rasterizationState.polygonMode = VK_POLYGON_MODE_FILL;
rasterizationState.cullMode = VK_CULL_MODE_NONE; rasterizationState.cullMode = VK_CULL_MODE_NONE;
blendAttachmentState.colorWriteMask = 0xF; blendAttachmentState.colorWriteMask = 0xF;
blendAttachmentState.blendEnable = VK_TRUE; blendAttachmentState.blendEnable = VK_TRUE;
blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD; blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
@ -1092,7 +1014,6 @@ public:
blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD; blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA; blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_DST_ALPHA; blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_DST_ALPHA;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.postprocess)); VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.postprocess));
// Name shader moduels for debugging // Name shader moduels for debugging
@ -1159,7 +1080,7 @@ public:
// todo : use event to ensure that offscreen result is finished bfore render command buffer is started // todo : use event to ensure that offscreen result is finished bfore render command buffer is started
if (glow) if (glow)
{ {
submitCmdBuffers.push_back(offScreenCmdBuffer); submitCmdBuffers.push_back(offscreenPass.commandBuffer);
} }
submitCmdBuffers.push_back(drawCmdBuffers[currentBuffer]); submitCmdBuffers.push_back(drawCmdBuffers[currentBuffer]);