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using Silk.NET.Vulkan;
namespace Ryujinx.Ava.Ui.Vulkan
{
internal static class VulkanMemoryHelper
{
internal static int FindSuitableMemoryTypeIndex(VulkanPhysicalDevice physicalDevice, uint memoryTypeBits,
MemoryPropertyFlags flags)
{
physicalDevice.Api.GetPhysicalDeviceMemoryProperties(physicalDevice.InternalHandle, out var properties);
for (var i = 0; i < properties.MemoryTypeCount; i++)
{
var type = properties.MemoryTypes[i];
if ((memoryTypeBits & (1 << i)) != 0 && type.PropertyFlags.HasFlag(flags)) return i;
}
return -1;
}
internal static unsafe void TransitionLayout(VulkanDevice device,
CommandBuffer commandBuffer,
Image image,
ImageLayout sourceLayout,
AccessFlags sourceAccessMask,
ImageLayout destinationLayout,
AccessFlags destinationAccessMask,
uint mipLevels)
{
var subresourceRange = new ImageSubresourceRange(ImageAspectFlags.ImageAspectColorBit, 0, mipLevels, 0, 1);
var barrier = new ImageMemoryBarrier
{
SType = StructureType.ImageMemoryBarrier,
SrcAccessMask = sourceAccessMask,
DstAccessMask = destinationAccessMask,
OldLayout = sourceLayout,
NewLayout = destinationLayout,
SrcQueueFamilyIndex = Vk.QueueFamilyIgnored,
DstQueueFamilyIndex = Vk.QueueFamilyIgnored,
Image = image,
SubresourceRange = subresourceRange
};
device.Api.CmdPipelineBarrier(
commandBuffer,
PipelineStageFlags.PipelineStageAllCommandsBit,
PipelineStageFlags.PipelineStageAllCommandsBit,
0,
0,
null,
0,
null,
1,
barrier);
}
}
}
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