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//
// Utils.cs
//
// Author:
// Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
//
// Copyright (c) 2019 jp
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.IO;
using System.Numerics;
namespace Vulkan {
public static partial class Utils {
public static void CheckResult (VkResult result, string errorString = "Call failed") {
if (result != VkResult.Success)
throw new InvalidOperationException (errorString + ": " + result.ToString ());
}
public static float DegreesToRadians (float degrees) {
return degrees * (float)Math.PI / 180f;
}
#region Extensions methods
public static void FromFloatArray (ref Vector3 v, float[] floats) {
if (floats.Length > 0)
v.X = floats[0];
if (floats.Length > 1)
v.Y = floats[1];
if (floats.Length > 2)
v.Z = floats[2];
}
public static void FromFloatArray (ref Vector4 v, float[] floats) {
if (floats.Length > 0)
v.X = floats[0];
if (floats.Length > 1)
v.Y = floats[1];
if (floats.Length > 2)
v.Z = floats[2];
if (floats.Length > 3)
v.W = floats[3];
}
public static void FromFloatArray (ref Quaternion v, float[] floats) {
if (floats.Length > 0)
v.X = floats[0];
if (floats.Length > 1)
v.Y = floats[1];
if (floats.Length > 2)
v.Z = floats[2];
if (floats.Length > 3)
v.W = floats[3];
}
public static void FromByteArray (ref Vector2 v, byte[] byteArray, int offset) {
v.X = BitConverter.ToSingle (byteArray, offset);
v.Y = BitConverter.ToSingle (byteArray, offset + 4);
}
public static void FromByteArray (ref Vector3 v, byte[] byteArray, int offset) {
v.X = BitConverter.ToSingle (byteArray, offset);
v.Y = BitConverter.ToSingle (byteArray, offset + 4);
v.Z = BitConverter.ToSingle (byteArray, offset + 8);
}
public static void FromByteArray (ref Vector4 v, byte[] byteArray, int offset) {
v.X = BitConverter.ToSingle (byteArray, offset);
v.Y = BitConverter.ToSingle (byteArray, offset + 4);
v.Z = BitConverter.ToSingle (byteArray, offset + 8);
v.W = BitConverter.ToSingle (byteArray, offset + 12);
}
public static void FromByteArray (ref Quaternion v, byte[] byteArray, int offset) {
v.X = BitConverter.ToSingle (byteArray, offset);
v.Y = BitConverter.ToSingle (byteArray, offset + 4);
v.Z = BitConverter.ToSingle (byteArray, offset + 8);
v.W = BitConverter.ToSingle (byteArray, offset + 12);
}
#endregion
// Fixed sub resource on first mip level and layer
public static void setImageLayout (
VkCommandBuffer cmdbuffer,
VkImage image,
VkImageAspectFlags aspectMask,
VkImageLayout oldImageLayout,
VkImageLayout newImageLayout,
VkPipelineStageFlags srcStageMask = VkPipelineStageFlags.AllCommands,
VkPipelineStageFlags dstStageMask = VkPipelineStageFlags.AllCommands) {
VkImageSubresourceRange subresourceRange = new VkImageSubresourceRange {
aspectMask = aspectMask,
baseMipLevel = 0,
levelCount = 1,
layerCount = 1,
};
setImageLayout (cmdbuffer, image, aspectMask, oldImageLayout, newImageLayout, subresourceRange);
}
// Create an image memory barrier for changing the layout of
// an image and put it into an active command buffer
// See chapter 11.4 "Image Layout" for details
unsafe public static void setImageLayout (
VkCommandBuffer cmdbuffer,
VkImage image,
VkImageAspectFlags aspectMask,
VkImageLayout oldImageLayout,
VkImageLayout newImageLayout,
VkImageSubresourceRange subresourceRange,
VkPipelineStageFlags srcStageMask = VkPipelineStageFlags.AllCommands,
VkPipelineStageFlags dstStageMask = VkPipelineStageFlags.AllCommands) {
// Create an image barrier object
VkImageMemoryBarrier imageMemoryBarrier = VkImageMemoryBarrier.New ();
imageMemoryBarrier.srcQueueFamilyIndex = VulkanNative.QueueFamilyIgnored;
imageMemoryBarrier.dstQueueFamilyIndex = VulkanNative.QueueFamilyIgnored;
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 VkImageLayout.Undefined:
// 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 VkImageLayout.Preinitialized:
// Image is preinitialized
// Only valid as initial layout for linear images, preserves memory contents
// Make sure host writes have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.HostWrite;
break;
case VkImageLayout.ColorAttachmentOptimal:
// Image is a color attachment
// Make sure any writes to the color buffer have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.ColorAttachmentWrite;
break;
case VkImageLayout.DepthStencilAttachmentOptimal:
// Image is a depth/stencil attachment
// Make sure any writes to the depth/stencil buffer have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.DepthStencilAttachmentWrite;
break;
case VkImageLayout.TransferSrcOptimal:
// Image is a transfer source
// Make sure any reads from the image have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferRead;
break;
case VkImageLayout.TransferDstOptimal:
// Image is a transfer destination
// Make sure any writes to the image have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferWrite;
break;
case VkImageLayout.ShaderReadOnlyOptimal:
// Image is read by a shader
// Make sure any shader reads from the image have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.ShaderRead;
break;
}
// Target layouts (new)
// Destination access mask controls the dependency for the new image layout
switch (newImageLayout) {
case VkImageLayout.TransferDstOptimal:
// Image will be used as a transfer destination
// Make sure any writes to the image have been finished
imageMemoryBarrier.dstAccessMask = VkAccessFlags.TransferWrite;
break;
case VkImageLayout.TransferSrcOptimal:
// 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 | VkAccessFlags.TransferRead;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.TransferRead;
break;
case VkImageLayout.ColorAttachmentOptimal:
// Image will be used as a color attachment
// Make sure any writes to the color buffer have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferRead;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.ColorAttachmentWrite;
break;
case VkImageLayout.DepthStencilAttachmentOptimal:
// 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 | VkAccessFlags.DepthStencilAttachmentWrite;
break;
case VkImageLayout.ShaderReadOnlyOptimal:
// 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 = VkAccessFlags.HostWrite | VkAccessFlags.TransferWrite;
}
imageMemoryBarrier.dstAccessMask = VkAccessFlags.ShaderRead;
break;
}
// Put barrier inside setup command buffer
VulkanNative.vkCmdPipelineBarrier (
cmdbuffer,
srcStageMask,
dstStageMask,
0,
0, IntPtr.Zero,
0, IntPtr.Zero,
1, ref imageMemoryBarrier);
}
}
}
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