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Opaque sparse memory bindings for mip tails

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This commit is contained in:
saschawillems 2016-09-12 19:53:39 +02:00
parent 8f2ea86e11
commit 385b760770
3 changed files with 59 additions and 24 deletions
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2
data/shaders/texturesparseresidency/sparseresidency.frag
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@ -18,7 +18,7 @@ layout (location = 0) out vec4 outFragColor;
void main()
{
// Get residency code for current texel
int residencyCode = sparseTextureARB(samplerColor, inUV, outFragColor);
int residencyCode = sparseTextureARB(samplerColor, inUV, outFragColor, inLodBias);
// Check if texel is resident
bool texelResident = sparseTexelsResidentARB(residencyCode);

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data/shaders/texturesparseresidency/sparseresidency.frag.spv
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79
texturesparseresidency/texturesparseresidency.cpp
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@ -210,8 +210,7 @@ public:
{
texture.width = width;
texture.height = height;
//texture.mipLevels = floor(log2(std::max(width, height))) + 1; //todo
texture.mipLevels = 1;
texture.mipLevels = floor(log2(std::max(width, height))) + 1; //todo
texture.layerCount = layerCount;
texture.format = format;
@ -330,9 +329,14 @@ public:
uint32_t sparseBindsCount = static_cast<uint32_t>(sparseImageMemoryReqs.size / sparseImageMemoryReqs.alignment);
std::vector<VkSparseMemoryBind> sparseMemoryBinds(sparseBindsCount);
// Check if the format has a single mip tail for all layers or one mip tail for each layer
// The mip tail contains all mip levels > sparseMemoryReq.imageMipTailFirstLod
bool singleMipTail = sparseMemoryReq.formatProperties.flags & VK_SPARSE_IMAGE_FORMAT_SINGLE_MIPTAIL_BIT;
// Sparse bindings for each mip level of all layers outside of the mip tail
for (uint32_t layer = 0; layer < texture.layerCount; layer++)
{
// sparseMemoryReq.imageMipTailFirstLod is the first mip level that's stored inside the mip tail
for (uint32_t mipLevel = 0; mipLevel < sparseMemoryReq.imageMipTailFirstLod; mipLevel++)
{
VkExtent3D extent;
@ -396,14 +400,47 @@ public:
}
}
// Sparse binding for the mip tail (if present) containing the remaining mip levels
// The mip tail contains all mip levels > sparseMemoryReq.imageMipTailFirstLod
if ((sparseMemoryReq.formatProperties.flags & VK_SPARSE_IMAGE_FORMAT_SINGLE_MIPTAIL_BIT) && (sparseMemoryReq.imageMipTailFirstLod < texture.mipLevels))
// Check if format has one mip tail per layer
if ((!singleMipTail) && (sparseMemoryReq.imageMipTailFirstLod < texture.mipLevels))
{
//todo
// Allocate memory for the mip tail
VkMemoryAllocateInfo allocInfo = vkTools::initializers::memoryAllocateInfo();
allocInfo.allocationSize = sparseMemoryReq.imageMipTailSize;
allocInfo.memoryTypeIndex = memoryTypeIndex;
VkDeviceMemory deviceMemory;
VK_CHECK_RESULT(vkAllocateMemory(device, &allocInfo, nullptr, &deviceMemory));
// (Opaque) sparse memory binding
VkSparseMemoryBind sparseMemoryBind{};
sparseMemoryBind.resourceOffset = sparseMemoryReq.imageMipTailOffset + layer * sparseMemoryReq.imageMipTailStride;
sparseMemoryBind.size = sparseMemoryReq.imageMipTailSize;
sparseMemoryBind.memory = deviceMemory;
texture.opaqueMemoryBinds.push_back(sparseMemoryBind);
}
} // end layers and mips
// Check if format has one mip tail for all layers
if ((sparseMemoryReq.formatProperties.flags & VK_SPARSE_IMAGE_FORMAT_SINGLE_MIPTAIL_BIT) && (sparseMemoryReq.imageMipTailFirstLod < texture.mipLevels))
{
// Allocate memory for the mip tail
VkMemoryAllocateInfo allocInfo = vkTools::initializers::memoryAllocateInfo();
allocInfo.allocationSize = sparseMemoryReq.imageMipTailSize;
allocInfo.memoryTypeIndex = memoryTypeIndex;
VkDeviceMemory deviceMemory;
VK_CHECK_RESULT(vkAllocateMemory(device, &allocInfo, nullptr, &deviceMemory));
// (Opaque) sparse memory binding
VkSparseMemoryBind sparseMemoryBind{};
sparseMemoryBind.resourceOffset = sparseMemoryReq.imageMipTailOffset;
sparseMemoryBind.size = sparseMemoryReq.imageMipTailSize;
sparseMemoryBind.memory = deviceMemory;
texture.opaqueMemoryBinds.push_back(sparseMemoryBind);
}
// Create signal semaphore for sparse binding
VkSemaphoreCreateInfo semaphoreCreateInfo = vkTools::initializers::semaphoreCreateInfo();
VK_CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &bindSparseSemaphore));
@ -442,21 +479,15 @@ public:
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
sampler.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
sampler.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.mipLodBias = 0.0f;
sampler.compareOp = VK_COMPARE_OP_NEVER;
sampler.minLod = 0.0f;
sampler.maxLod = (float)texture.mipLevels;
sampler.maxAnisotropy = 1.0;
sampler.anisotropyEnable = VK_FALSE;
if (vulkanDevice->features.samplerAnisotropy)
{
// Use max. level of anisotropy for this example
sampler.maxAnisotropy = vulkanDevice->properties.limits.maxSamplerAnisotropy;
sampler.anisotropyEnable = VK_TRUE;
}
sampler.maxLod = static_cast<float>(texture.mipLevels);
sampler.anisotropyEnable = vulkanDevice->features.samplerAnisotropy;
sampler.maxAnisotropy = vulkanDevice->features.samplerAnisotropy ? vulkanDevice->properties.limits.maxSamplerAnisotropy : 1.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &texture.sampler));
@ -486,11 +517,15 @@ public:
vkDestroyImageView(device, texture.view, nullptr);
vkDestroyImage(device, texture.image, nullptr);
vkDestroySampler(device, texture.sampler, nullptr);
//vkFreeMemory(device, texture.deviceMemory, nullptr);
// Sparse memory
for (auto residency : texture.residencyMemoryBinds)
// Release sparse image memory
for (auto residencyBind : texture.residencyMemoryBinds)
{
vkFreeMemory(device, residency.memory, nullptr);
vkFreeMemory(device, residencyBind.memory, nullptr);
}
// Release sparse opqaue memory (mip tail)
for (auto opaqueBind : texture.opaqueMemoryBinds)
{
vkFreeMemory(device, opaqueBind.memory, nullptr);
}
}