public GraphicsState(WindowState window)
{
Window = window;
Stopwatch = window.Stopwatch;
var syswm = new SDL_SysWMinfo();
if (SDL_GetWindowWMInfo(window.Handle, ref syswm) == SDL_bool.SDL_FALSE)
{
throw new SdlException($"Could not get window wminfo: {SDL_GetError()}");
}
SDL_GetWindowSize(window.Handle, out var width, out var height);
Device = GraphicsDevice.CreateVulkan(
new GraphicsDeviceOptions(true, null, false, ResourceBindingModel.Default,
true, false, false),
VkSurfaceSource.CreateWin32(syswm.info.win.hinstance, syswm.info.win.window),
(uint)width, (uint)height);
Log.Debug("main swapchain color format is {format}",
Device.MainSwapchain.Framebuffer.ColorTargets[0].Target.Format);
SingleRectIndexBuffer = new ResourcelessArrayBuffer <uint>(this, BufferUsage.IndexBuffer,
new uint[] { 0, 2, 3, 0, 3, 1 }.ToImmutableArray());
RandomnessTexture = new RandomnessTexture(this);
}
private static unsafe RenderContext CreateVulkanRenderContext(Sdl2Window window)
{
IntPtr sdlHandle = window.SdlWindowHandle;
SDL_SysWMinfo sysWmInfo;
Sdl2Native.SDL_GetVersion(&sysWmInfo.version);
Sdl2Native.SDL_GetWMWindowInfo(sdlHandle, &sysWmInfo);
VkSurfaceSource surfaceSource = GetSurfaceSource(sysWmInfo);
return(new VkRenderContext(surfaceSource, window.Width, window.Height));
}
private static unsafe RenderContext CreateVulkanRenderContext(Sdl2Window window)
{
IntPtr sdlHandle = window.SdlWindowHandle;
SDL_SysWMinfo sysWmInfo;
Sdl2Native.SDL_GetVersion(&sysWmInfo.version);
Sdl2Native.SDL_GetWMWindowInfo(sdlHandle, &sysWmInfo);
Win32WindowInfo w32Info = Unsafe.Read <Win32WindowInfo>(&sysWmInfo.info);
return(new VkRenderContext(VkSurfaceSource.CreateWin32(w32Info.hinstance, w32Info.window), window.Width, window.Height));
}
public static unsafe GraphicsDevice CreateVulkanGraphicsDevice(ref GraphicsDeviceCreateInfo contextCI, Sdl2Window window)
{
IntPtr sdlHandle = window.SdlWindowHandle;
SDL_SysWMinfo sysWmInfo;
Sdl2Native.SDL_GetVersion(&sysWmInfo.version);
Sdl2Native.SDL_GetWMWindowInfo(sdlHandle, &sysWmInfo);
VkSurfaceSource surfaceSource = GetSurfaceSource(sysWmInfo);
GraphicsDevice gd = Hacks.CreateVulkan(surfaceSource, (uint)window.Width, (uint)window.Height, contextCI.DebugDevice);
return(gd);
}
public static unsafe GraphicsDevice CreateVulkanGraphicsDevice(GraphicsDeviceOptions options, Sdl2Window window)
{
IntPtr sdlHandle = window.SdlWindowHandle;
SDL_SysWMinfo sysWmInfo;
Sdl2Native.SDL_GetVersion(&sysWmInfo.version);
Sdl2Native.SDL_GetWMWindowInfo(sdlHandle, &sysWmInfo);
VkSurfaceSource surfaceSource = GetSurfaceSource(sysWmInfo);
GraphicsDevice gd = GraphicsDevice.CreateVulkan(options, surfaceSource, (uint)window.Width, (uint)window.Height);
return(gd);
}
public static unsafe RenderContext CreateVulkanRenderContext(ref RenderContextCreateInfo contextCI, Sdl2Window window)
{
IntPtr sdlHandle = window.SdlWindowHandle;
SDL_SysWMinfo sysWmInfo;
Sdl2Native.SDL_GetVersion(&sysWmInfo.version);
Sdl2Native.SDL_GetWMWindowInfo(sdlHandle, &sysWmInfo);
VkSurfaceSource surfaceSource = GetSurfaceSource(sysWmInfo);
VkRenderContext rc = new VkRenderContext(surfaceSource, window.Width, window.Height);
if (contextCI.DebugContext)
{
rc.EnableDebugCallback();
}
return(rc);
}
private static unsafe VkSurfaceSource GetSurfaceSource(SDL_SysWMinfo sysWmInfo)
{
switch (sysWmInfo.subsystem)
{
case SysWMType.Windows:
Win32WindowInfo w32Info = Unsafe.Read <Win32WindowInfo>(&sysWmInfo.info);
return(VkSurfaceSource.CreateWin32(w32Info.hinstance, w32Info.Sdl2Window));
case SysWMType.X11:
X11WindowInfo x11Info = Unsafe.Read <X11WindowInfo>(&sysWmInfo.info);
return(VkSurfaceSource.CreateXlib(
(Vulkan.Xlib.Display *)x11Info.display,
new Vulkan.Xlib.Window()
{
Value = x11Info.Sdl2Window
}));
default:
throw new PlatformNotSupportedException("Cannot create a Vulkan surface for " + sysWmInfo.subsystem + ".");
}
}
public static GraphicsDevice CreateVulkan(VkSurfaceSource surfaceSource, uint width, uint height, bool debugDevice)
{
return(new VkGraphicsDevice(surfaceSource, width, height, debugDevice));
}
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();
}
