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using System;
using System.Threading;
using Crow;
using CVKL;
using VK;
namespace Crow
{
public class CrowVkWin : VkWindow, IValueChange {
#region IValueChange implementation
public event EventHandler<Crow.ValueChangeEventArgs> ValueChanged;
public virtual void NotifyValueChanged(string MemberName, object _value)
{
if (ValueChanged != null)
ValueChanged.Invoke(this, new Crow.ValueChangeEventArgs(MemberName, _value));
}
#endregion
protected Crow.Interface crow;
protected CVKL.Image uiImage;
protected vkvg.Device vkvgDev;
bool isRunning;
protected CrowVkWin() : base()
{
Thread crowThread = new Thread(crow_thread_func);
crowThread.IsBackground = true;
crowThread.Start();
while (crow == null)
Thread.Sleep(2);
initUISurface();
}
protected virtual void onLoad () { }
public override void Run ()
{
onLoad ();
base.Run ();
}
protected override void render () {
int idx = swapChain.GetNextImage ();
if (idx < 0) {
OnResize ();
return;
}
lock (crow.RenderMutex) {
presentQueue.Submit (cmds[idx], swapChain.presentComplete, drawComplete[idx]);
presentQueue.Present (swapChain, drawComplete[idx]);
presentQueue.WaitIdle ();
}
Thread.Sleep (1);
}
void crow_thread_func () {
vkvgDev = new vkvg.Device (instance.Handle, phy.Handle, dev.VkDev.Handle, presentQueue.qFamIndex,
vkvg.SampleCount.Sample_8, presentQueue.index);
crow = new Crow.Interface (vkvgDev, 800, 600);
crow.MouseCursorChanged +=Crow_MouseCursorChanged;;
isRunning = true;
while (isRunning) {
crow.Update ();
Thread.Sleep (1);
}
crow.Dispose ();
vkvgDev.Dispose ();
crow = null;
}
void Crow_MouseCursorChanged (object sender, MouseCursorChangedEventArgs e)
{
switch (e.NewCursor) {
case MouseCursor.Arrow:
SetCursor (Glfw.CursorShape.Arrow);
break;
case MouseCursor.IBeam:
SetCursor (Glfw.CursorShape.IBeam);
break;
case MouseCursor.Crosshair:
SetCursor (Glfw.CursorShape.Crosshair);
break;
case MouseCursor.Hand:
SetCursor (Glfw.CursorShape.Hand);
break;
case MouseCursor.HResize:
SetCursor (Glfw.CursorShape.HResize);
break;
case MouseCursor.VResize:
SetCursor (Glfw.CursorShape.VResize);
break;
default:
SetCursor (Glfw.CursorShape.Crosshair);
break;
}
}
void initUISurface () {
lock (crow.UpdateMutex) {
uiImage?.Dispose ();
uiImage = new CVKL.Image (dev, new VkImage ((ulong)crow.surf.VkImage.ToInt64 ()), VkFormat.B8g8r8a8Unorm,
VkImageUsageFlags.Sampled, swapChain.Width, swapChain.Height);
uiImage.SetName ("uiImage");
uiImage.CreateView (VkImageViewType.ImageView2D, VkImageAspectFlags.Color);
uiImage.CreateSampler (VkFilter.Nearest, VkFilter.Nearest, VkSamplerMipmapMode.Nearest, VkSamplerAddressMode.ClampToBorder);
uiImage.Descriptor.imageLayout = VkImageLayout.ShaderReadOnlyOptimal;
}
}
protected virtual void recordDraw (CommandBuffer cmd, int imageIndex) { }
void buildCommandBuffers () {
for (int i = 0; i < swapChain.ImageCount; ++i) {
cmds[i]?.Free ();
cmds[i] = cmdPool.AllocateAndStart ();
CommandBuffer cmd = cmds [i];
recordDraw (cmd, i);
swapChain.images [i].SetLayout (cmd, VkImageAspectFlags.Color,
VkImageLayout.Undefined, VkImageLayout.TransferDstOptimal,
VkPipelineStageFlags.BottomOfPipe, VkPipelineStageFlags.Transfer);
uiImage.SetLayout (cmd, VkImageAspectFlags.Color,
VkImageLayout.Undefined, VkImageLayout.TransferSrcOptimal,
VkPipelineStageFlags.Transfer, VkPipelineStageFlags.Transfer);
VkImageSubresourceLayers imgSubResLayer = new VkImageSubresourceLayers {
aspectMask = VkImageAspectFlags.Color,
mipLevel = 0,
baseArrayLayer = 0,
layerCount = 1
};
VkImageCopy cregion = new VkImageCopy {
srcSubresource = imgSubResLayer,
srcOffset = default (VkOffset3D),
dstSubresource = imgSubResLayer,
dstOffset = default (VkOffset3D),
extent = new VkExtent3D { width = swapChain.Width, height = swapChain.Height }
};
Vk.vkCmdCopyImage (cmds [i].Handle, uiImage.Handle, VkImageLayout.TransferSrcOptimal,
swapChain.images [i].Handle, VkImageLayout.TransferDstOptimal, 1, ref cregion);
swapChain.images [i].SetLayout (cmd, VkImageAspectFlags.Color,
VkImageLayout.TransferDstOptimal, VkImageLayout.PresentSrcKHR,
VkPipelineStageFlags.Transfer, VkPipelineStageFlags.BottomOfPipe);
uiImage.SetLayout (cmd, VkImageAspectFlags.Color,
VkImageLayout.TransferSrcOptimal, VkImageLayout.ColorAttachmentOptimal,
VkPipelineStageFlags.Transfer, VkPipelineStageFlags.ColorAttachmentOutput);
cmds [i].End ();
}
}
/// <summary>
/// rebuild command buffers if needed
/// </summary>
public override void Update () {
if (rebuildBuffers) {
buildCommandBuffers ();
rebuildBuffers = false;
}
}
protected override void OnResize () {
dev.WaitIdle ();
crow.ProcessResize (new Crow.Rectangle (0, 0, (int)swapChain.Width, (int)swapChain.Height));
initUISurface ();
buildCommandBuffers ();
dev.WaitIdle ();
}
#region Mouse and keyboard
protected override void onScroll (double xOffset, double yOffset)
{
if (KeyModifiers.HasFlag (Glfw.Modifier.Shift))
crow.ProcessMouseWheelChanged ((float)xOffset);
else
crow.ProcessMouseWheelChanged ((float)yOffset);
}
protected override void onMouseMove (double xPos, double yPos)
{
if (crow.ProcessMouseMove ((int)xPos, (int)yPos))
return;
}
protected override void onMouseButtonDown (Glfw.MouseButton button)
{
if (crow.ProcessMouseButtonDown ((Crow.MouseButton)button))
return;
base.onMouseButtonDown (button);
}
protected override void onMouseButtonUp (Glfw.MouseButton button)
{
if (crow.ProcessMouseButtonUp ((Crow.MouseButton)button))
return;
base.onMouseButtonUp (button);
}
protected override void onKeyDown (Glfw.Key key, int scanCode, Glfw.Modifier modifiers)
{
if (crow.ProcessKeyDown ((Crow.Key)key))
return;
}
protected override void onKeyUp (Glfw.Key key, int scanCode, Glfw.Modifier modifiers)
{
if (crow.ProcessKeyUp ((Crow.Key)key))
return;
}
protected override void onChar (Glfw.CodePoint cp)
{
if (crow.ProcessKeyPress (cp.ToChar ()))
return;
}
#endregion
#region dispose
protected override void Dispose (bool disposing) {
if (disposing) {
if (!isDisposed) {
dev.WaitIdle ();
isRunning = false;
uiImage?.Dispose ();
while (crow != null)
Thread.Sleep (1);
}
}
base.Dispose (disposing);
}
#endregion
}
}
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