private static void DestroyWindow(ImGuiViewport *viewport)
{
ViewportData *viewportData = (ViewportData *)viewport->PlatformUserData;
if (viewportData is not null)
{
if (viewportData->WindowOwned)
{
PlatformBackend backend = GetPlatformBackend();
// Release any keys that were pressed in the window being destroyed and are still held down,
// because we will not receive any release events after window is destroyed.
for (int i = 0; i < backend.KeyOwnerWindows.Length; i++)
{
if (backend.KeyOwnerWindows[i] == viewportData->Window)
{
KeyCallbackManaged(viewportData->Window, (Keys)i, 0, InputAction.Release, 0);
} // Later params are only used for main viewport, on which this function is never called.
}
GLFW.DestroyWindow(viewportData->Window);
}
viewportData->Window = null;
ViewportData.Free(viewportData);
}
viewport->PlatformUserData = viewport->PlatformHandle = null;
}
public void Dispose()
{
imageAvailableSemaphore.Dispose();
renderFinishedSemaphore.Dispose();
indexBufferMemory.Dispose();
indexBuffer.Dispose();
vertexBufferMemory.Dispose();
vertexBuffer.Dispose();
commandPool.Dispose();
foreach (var fb in swapchainFramebuffers)
{
fb.Dispose();
}
pipeline.Dispose();
pipelineLayout.Dispose();
renderPass.Dispose();
foreach (var iv in swapchainImageViews)
{
iv.Dispose();
}
swapchain.Dispose();
device.Dispose();
surface.Dispose();
debugCallbacks.Dispose();
instance.Dispose();
GLFW.DestroyWindow(window);
GLFW.Terminate();
}
public static void ImGui_ImplGlfw_DestroyWindow(ImGuiViewportPtr viewport)
{
var data = GetViewportData(viewport);
if (data.WindowOwned)
{
GLFW.DestroyWindow((Window *)data.Window);
}
_data.Remove(viewport.PlatformUserData);
viewport.PlatformUserData = viewport.PlatformHandle = IntPtr.Zero;
}
private static void WinThreadWinDestroy(CmdWinDestroy cmd)
{
var window = (Window *)cmd.Window;
if (OperatingSystem.IsWindows() && cmd.hadOwner)
{
// On Windows, closing the child window causes the owner to be minimized, apparently.
// Clear owner on close to avoid this.
var hWnd = (HWND)GLFW.GetWin32Window(window);
DebugTools.Assert(hWnd != HWND.NULL);
Windows.SetWindowLongPtrW(
hWnd,
GWLP.GWLP_HWNDPARENT,
0);
}
GLFW.DestroyWindow((Window *)cmd.Window);
}
public virtual void Dispose()
{
GLFW.DestroyWindow(_window);
}
private void WinThreadWinDestroy(CmdWinDestroy cmd)
{
GLFW.DestroyWindow((Window *)cmd.Window);
}
private void InitVeldrid()
{
var options = new GraphicsDeviceOptions
{
#if DEBUG
Debug = true,
#endif
HasMainSwapchain = true,
SyncToVerticalBlank = _vsync,
PreferStandardClipSpaceYDirection = true,
SwapchainSrgbFormat = true
};
GLFW.GetFramebufferSize(_window.WindowPtr, out var w, out var h);
var hwnd = GLFW.GetWin32Window(_window.WindowPtr);
var hinstance = GetModuleHandleA(null);
switch (_vdRenderer)
{
case VeldridRenderer.Vulkan:
_vdGfxDevice = GraphicsDevice.CreateVulkan(
options,
VkSurfaceSource.CreateWin32((nint)hinstance, hwnd),
(uint)w, (uint)h);
break;
case VeldridRenderer.D3D11:
_vdGfxDevice = GraphicsDevice.CreateD3D11(options, hwnd, (uint)w, (uint)h);
break;
case VeldridRenderer.OpenGL:
{
var platInfo = new OpenGLPlatformInfo(
(nint)_window.WindowPtr,
GLFW.GetProcAddress,
ptr => GLFW.MakeContextCurrent((Window *)ptr),
() => (nint)GLFW.GetCurrentContext(),
() => GLFW.MakeContextCurrent(null),
ptr => GLFW.DestroyWindow((Window *)ptr),
() => GLFW.SwapBuffers(_window.WindowPtr),
vsync => GLFW.SwapInterval(vsync ? 1 : 0));
_vdGfxDevice = GraphicsDevice.CreateOpenGL(options, platInfo, (uint)w, (uint)h);
break;
}
}
var factory = _vdGfxDevice.ResourceFactory;
_vdCommandList = factory.CreateCommandList();
_vdCommandList.Name = "Honk";
var vtxLayout = new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementFormat.Float2,
VertexElementSemantic.TextureCoordinate),
new VertexElementDescription("UV", VertexElementFormat.Float2, VertexElementSemantic.TextureCoordinate),
new VertexElementDescription("Color", VertexElementFormat.Byte4_Norm,
VertexElementSemantic.TextureCoordinate));
var vtxShaderDesc = new ShaderDescription(
ShaderStages.Vertex,
Encoding.UTF8.GetBytes(VDVertexShader),
"main");
var fragShaderDesc = new ShaderDescription(
ShaderStages.Fragment,
Encoding.UTF8.GetBytes(VDFragmentShader),
"main");
_vdShaders = factory.CreateFromSpirv(vtxShaderDesc, fragShaderDesc);
_vdShaders[0].Name = "VertexShader";
_vdShaders[1].Name = "FragmentShader";
var layoutTexture = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription(
"Texture",
ResourceKind.TextureReadOnly,
ShaderStages.Fragment),
new ResourceLayoutElementDescription(
"TextureSampler",
ResourceKind.Sampler,
ShaderStages.Fragment)));
layoutTexture.Name = "LayoutTexture";
var layoutProjMatrix = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription(
"ProjMtx",
ResourceKind.UniformBuffer,
ShaderStages.Vertex)));
layoutProjMatrix.Name = "LayoutProjMatrix";
var pipelineDesc = new GraphicsPipelineDescription(
new BlendStateDescription(
RgbaFloat.White,
new BlendAttachmentDescription(
true,
BlendFactor.SourceAlpha,
BlendFactor.InverseSourceAlpha,
BlendFunction.Add,
BlendFactor.One,
BlendFactor.InverseSourceAlpha,
BlendFunction.Add)
),
DepthStencilStateDescription.Disabled,
new RasterizerStateDescription(
FaceCullMode.None,
PolygonFillMode.Solid,
FrontFace.Clockwise,
depthClipEnabled: false,
scissorTestEnabled: true),
PrimitiveTopology.TriangleList,
new ShaderSetDescription(new[] { vtxLayout }, _vdShaders),
new[] { layoutProjMatrix, layoutTexture },
new OutputDescription(
null,
new OutputAttachmentDescription(PixelFormat.B8_G8_R8_A8_UNorm_SRgb))
);
_vdPipeline = factory.CreateGraphicsPipeline(pipelineDesc);
_vdPipeline.Name = "MainPipeline";
_vdProjMatrixUniformBuffer = factory.CreateBuffer(new BufferDescription(
(uint)sizeof(Matrix4x4),
BufferUsage.Dynamic | BufferUsage.UniformBuffer));
_vdProjMatrixUniformBuffer.Name = "_vdProjMatrixUniformBuffer";
_vdSetProjMatrix = factory.CreateResourceSet(new ResourceSetDescription(
layoutProjMatrix,
_vdProjMatrixUniformBuffer));
_vdSetProjMatrix.Name = "_vdSetProjMatrix";
var io = ImGui.GetIO();
io.Fonts.GetTexDataAsRGBA32(out byte *pixels, out var width, out var height, out _);
_vdTexture = factory.CreateTexture(TextureDescription.Texture2D(
(uint)width, (uint)height,
mipLevels: 1,
arrayLayers: 1,
PixelFormat.R8_G8_B8_A8_UNorm_SRgb,
TextureUsage.Sampled));
_vdTexture.Name = "MainTexture";
_vdSampler = factory.CreateSampler(SamplerDescription.Linear);
_vdSampler.Name = "MainSampler";
_vdGfxDevice.UpdateTexture(
_vdTexture,
(IntPtr)pixels,
(uint)(width * height * 4),
x: 0, y: 0, z: 0,
(uint)width, (uint)height, depth: 1,
mipLevel: 0,
arrayLayer: 0);
_vdSetTexture = factory.CreateResourceSet(new ResourceSetDescription(
layoutTexture,
_vdTexture,
_vdSampler));
_vdSetTexture.Name = "SetTexture";
io.Fonts.SetTexID((nint)0);
io.Fonts.ClearTexData();
_vdGfxDevice.ResizeMainWindow((uint)w, (uint)h);
_vdGfxDevice.SwapBuffers();
}