void BufferBarrier(vk::Buffer buffer,
vk::CommandBuffer commandBuffer,
vk::AccessFlags oldAccess,
vk::AccessFlags newAccess)
{
auto bufferMemoryBarriers = vk::BufferMemoryBarrier()
.setSrcQueueFamilyIndex(VK_QUEUE_FAMILY_IGNORED)
.setDstQueueFamilyIndex(VK_QUEUE_FAMILY_IGNORED)
.setBuffer(buffer)
.setSize(VK_WHOLE_SIZE)
.setSrcAccessMask(oldAccess)
.setDstAccessMask(newAccess);
commandBuffer.pipelineBarrier(vk::PipelineStageFlagBits::eAllCommands,
vk::PipelineStageFlagBits::eAllCommands,
{},
nullptr,
bufferMemoryBarriers,
nullptr);
}
void set_image_layout( vk::CommandBuffer cmdbuffer,
vk::Image image,
vk::ImageLayout oldImageLayout,
vk::ImageLayout newImageLayout,
vk::ImageSubresourceRange subresourceRange)
{
// Create an image barrier object
vk::ImageMemoryBarrier imageMemoryBarrier{{},{}, oldImageLayout, newImageLayout, VK_QUEUE_FAMILY_IGNORED, VK_QUEUE_FAMILY_IGNORED , image, subresourceRange};
// Source layouts (old)
// Undefined layout
// Only allowed as initial layout!
// Make sure any writes to the image have been finished
if (oldImageLayout == vk::ImageLayout::ePreinitialized)
{
imageMemoryBarrier.srcAccessMask(vk::AccessFlagBits::eHostWrite | vk::AccessFlagBits::eTransferWrite);
}
// Old layout is color attachment
// Make sure any writes to the color buffer have been finished
if (oldImageLayout == vk::ImageLayout::eColorAttachmentOptimal)
{
imageMemoryBarrier.srcAccessMask(vk::AccessFlagBits::eColorAttachmentWrite);
}
// Old layout is depth/stencil attachment
// Make sure any writes to the depth/stencil buffer have been finished
if (oldImageLayout == vk::ImageLayout::eDepthStencilAttachmentOptimal)
{
imageMemoryBarrier.srcAccessMask(vk::AccessFlagBits::eDepthStencilAttachmentWrite);
}
// Old layout is transfer source
// Make sure any reads from the image have been finished
if (oldImageLayout == vk::ImageLayout::eTransferSrcOptimal)
{
imageMemoryBarrier.srcAccessMask(vk::AccessFlagBits::eTransferRead);
}
// Old layout is shader read (sampler, input attachment)
// Make sure any shader reads from the image have been finished
if (oldImageLayout == vk::ImageLayout::eShaderReadOnlyOptimal)
{
imageMemoryBarrier.srcAccessMask(vk::AccessFlagBits::eShaderRead);
}
// Target layouts (new)
// New layout is transfer destination (copy, blit)
// Make sure any copyies to the image have been finished
if (newImageLayout == vk::ImageLayout::eTransferDstOptimal)
{
imageMemoryBarrier.dstAccessMask(vk::AccessFlagBits::eTransferWrite);
}
// New layout is transfer source (copy, blit)
// Make sure any reads from and writes to the image have been finished
if (newImageLayout == vk::ImageLayout::eTransferSrcOptimal)
{
imageMemoryBarrier.srcAccessMask() |= vk::AccessFlagBits::eTransferRead;
imageMemoryBarrier.dstAccessMask(vk::AccessFlagBits::eTransferRead);
}
// New layout is color attachment
// Make sure any writes to the color buffer hav been finished
if (newImageLayout == vk::ImageLayout::eColorAttachmentOptimal)
{
imageMemoryBarrier.dstAccessMask(vk::AccessFlagBits::eColorAttachmentWrite);
imageMemoryBarrier.srcAccessMask() |= vk::AccessFlagBits::eTransferRead;
}
// New layout is depth attachment
// Make sure any writes to depth/stencil buffer have been finished
if (newImageLayout == vk::ImageLayout::eDepthStencilAttachmentOptimal)
{
imageMemoryBarrier.dstAccessMask() |= vk::AccessFlagBits::eDepthStencilAttachmentWrite;
}
// New layout is shader read (sampler, input attachment)
// Make sure any writes to the image have been finished
if (newImageLayout == vk::ImageLayout::eShaderReadOnlyOptimal)
{
imageMemoryBarrier.srcAccessMask(vk::AccessFlagBits::eHostWrite | vk::AccessFlagBits::eTransferWrite);
imageMemoryBarrier.dstAccessMask(vk::AccessFlagBits::eShaderRead);
}
cmdbuffer.pipelineBarrier(vk::PipelineStageFlagBits::eTopOfPipe, vk::PipelineStageFlagBits::eTopOfPipe, {}, {}, {}, { imageMemoryBarrier });
}
static void setImageLayout(
vk::CommandBuffer cmdbuffer,
vk::Image image,
vk::ImageAspectFlags aspectMask,
vk::ImageLayout oldImageLayout,
vk::ImageLayout newImageLayout,
vk::ImageSubresourceRange subresourceRange)
{
// Create an image barrier object
vk::ImageMemoryBarrier imageMemoryBarrier;
imageMemoryBarrier.oldLayout = oldImageLayout;
imageMemoryBarrier.newLayout = newImageLayout;
imageMemoryBarrier.image = image;
imageMemoryBarrier.subresourceRange = subresourceRange;
// Source layouts (old)
// Source access mask controls actions that have to be finished on the old layout
// before it will be transitioned to the new layout
switch (oldImageLayout)
{
case vk::ImageLayout::eUndefined:
// Image layout is undefined (or does not matter)
// Only valid as initial layout
// No flags required, listed only for completeness
//imageMemoryBarrier.srcAccessMask = 0;
break;
case vk::ImageLayout::ePreinitialized:
// Image is preinitialized
// Only valid as initial layout for linear images, preserves memory contents
// Make sure host writes have been finished
imageMemoryBarrier.srcAccessMask = vk::AccessFlagBits::eHostWrite;
break;
case vk::ImageLayout::eColorAttachmentOptimal:
// Image is a color attachment
// Make sure any writes to the color buffer have been finished
imageMemoryBarrier.srcAccessMask = vk::AccessFlagBits::eColorAttachmentWrite;
break;
case vk::ImageLayout::eDepthStencilAttachmentOptimal:
// Image is a depth/stencil attachment
// Make sure any writes to the depth/stencil buffer have been finished
imageMemoryBarrier.srcAccessMask = vk::AccessFlagBits::eDepthStencilAttachmentWrite;
break;
case vk::ImageLayout::eTransferSrcOptimal:
// Image is a transfer source
// Make sure any reads from the image have been finished
imageMemoryBarrier.srcAccessMask = vk::AccessFlagBits::eTransferRead;
break;
case vk::ImageLayout::eTransferDstOptimal:
// Image is a transfer destination
// Make sure any writes to the image have been finished
imageMemoryBarrier.srcAccessMask = vk::AccessFlagBits::eTransferWrite;
break;
case vk::ImageLayout::eShaderReadOnlyOptimal:
// Image is read by a shader
// Make sure any shader reads from the image have been finished
imageMemoryBarrier.srcAccessMask = vk::AccessFlagBits::eShaderRead;
break;
}
// Target layouts (new)
// Destination access mask controls the dependency for the new image layout
switch (newImageLayout)
{
case vk::ImageLayout::eTransferDstOptimal:
// Image will be used as a transfer destination
// Make sure any writes to the image have been finished
imageMemoryBarrier.dstAccessMask = vk::AccessFlagBits::eTransferWrite;
break;
case vk::ImageLayout::eTransferSrcOptimal:
// Image will be used as a transfer source
// Make sure any reads from and writes to the image have been finished
imageMemoryBarrier.srcAccessMask = imageMemoryBarrier.srcAccessMask | vk::AccessFlagBits::eTransferRead;
imageMemoryBarrier.dstAccessMask = vk::AccessFlagBits::eTransferRead;
break;
case vk::ImageLayout::eColorAttachmentOptimal:
// Image will be used as a color attachment
// Make sure any writes to the color buffer have been finished
imageMemoryBarrier.srcAccessMask = vk::AccessFlagBits::eTransferRead;
imageMemoryBarrier.dstAccessMask = vk::AccessFlagBits::eColorAttachmentWrite;
break;
case vk::ImageLayout::eDepthStencilAttachmentOptimal:
// Image layout will be used as a depth/stencil attachment
// Make sure any writes to depth/stencil buffer have been finished
imageMemoryBarrier.dstAccessMask = imageMemoryBarrier.dstAccessMask | vk::AccessFlagBits::eDepthStencilAttachmentWrite;
break;
case vk::ImageLayout::eShaderReadOnlyOptimal:
// Image will be read in a shader (sampler, input attachment)
// Make sure any writes to the image have been finished
//if (imageMemoryBarrier.srcAccessMask == 0)
{
imageMemoryBarrier.srcAccessMask = vk::AccessFlagBits::eHostWrite | vk::AccessFlagBits::eTransferWrite;
}
imageMemoryBarrier.dstAccessMask = vk::AccessFlagBits::eShaderRead;
break;
}
// Put barrier on top
vk::PipelineStageFlags srcStageFlags = vk::PipelineStageFlagBits::eTopOfPipe;
vk::PipelineStageFlags destStageFlags = vk::PipelineStageFlagBits::eTopOfPipe;
// Put barrier inside setup command buffer
cmdbuffer.pipelineBarrier(srcStageFlags, destStageFlags, vk::DependencyFlags(), nullptr, nullptr, imageMemoryBarrier);
}