public static GraphicsDevice CreateGraphicsDevice(ref GraphicsDeviceCreateInfo graphicsDeviceCI, Sdl2Window window)
{
GraphicsBackend?backend = graphicsDeviceCI.Backend;
if (!backend.HasValue)
{
backend = GetPlatformDefaultBackend();
}
switch (backend)
{
case GraphicsBackend.Direct3D11:
return(CreateDefaultD3D11GraphicsDevice(ref graphicsDeviceCI, window));
case GraphicsBackend.Vulkan:
return(CreateVulkanGraphicsDevice(ref graphicsDeviceCI, window));
case GraphicsBackend.OpenGL:
return(CreateDefaultOpenGLRenderContext(ref graphicsDeviceCI, window));
//case GraphicsBackend.OpenGLES:
// return CreateDefaultOpenGLESRenderContext(ref contextCI, window);
default:
throw new VeldridException("Invalid GraphicsBackend: " + graphicsDeviceCI.Backend);
}
}
public static void CreateWindowAndGraphicsDevice(
ref WindowCreateInfo windowCI,
ref GraphicsDeviceCreateInfo graphicsDeviceCI,
out Sdl2Window window,
out GraphicsDevice gd)
{
window = CreateWindow(ref windowCI);
gd = CreateGraphicsDevice(ref graphicsDeviceCI, window);
}
public static GraphicsDevice CreateDefaultD3D11GraphicsDevice(ref GraphicsDeviceCreateInfo deviceCI, Sdl2Window window)
{
SharpDX.Direct3D11.DeviceCreationFlags flags = SharpDX.Direct3D11.DeviceCreationFlags.None;
if (deviceCI.DebugDevice)
{
flags |= SharpDX.Direct3D11.DeviceCreationFlags.Debug;
}
return(Hacks.CreateD3D11(window.Handle, 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 OpenGLESRenderContext CreateDefaultOpenGLESRenderContext(ref RenderContextCreateInfo contextCI, Sdl2Window window)
//{
// if (contextCI.DebugContext)
// {
// Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextFlags, (int)SDL_GLContextFlag.Debug);
// }
// IntPtr sdlHandle = window.SdlWindowHandle;
// Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextProfileMask, (int)SDL_GLProfile.ES);
// Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextMajorVersion, 3);
// Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextMinorVersion, 0);
// IntPtr contextHandle = Sdl2Native.SDL_GL_CreateContext(sdlHandle);
// Sdl2Native.SDL_GL_MakeCurrent(sdlHandle, contextHandle);
// if (contextHandle == IntPtr.Zero)
// {
// unsafe
// {
// byte* error = Sdl2Native.SDL_GetError();
// string errorString = Utilities.GetString(error);
// throw new VeldridException("Unable to create GL Context: " + errorString);
// }
// }
// OpenGLPlatformContextInfo ci = new OpenGLPlatformContextInfo(
// contextHandle,
// Sdl2Native.SDL_GL_GetProcAddress,
// Sdl2Native.SDL_GL_GetCurrentContext,
// () => Sdl2Native.SDL_GL_SwapWindow(sdlHandle));
// OpenGLESRenderContext rc = new OpenGLESRenderContext(window, ci);
// if (contextCI.DebugContext)
// {
// rc.EnableDebugCallback(OpenTK.Graphics.ES30.DebugSeverity.DebugSeverityLow);
// }
// return rc;
//}
public static GraphicsDevice CreateDefaultOpenGLRenderContext(ref GraphicsDeviceCreateInfo gdCI, Sdl2Window window)
{
IntPtr sdlHandle = window.SdlWindowHandle;
if (gdCI.DebugDevice)
{
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextFlags, (int)SDL_GLContextFlag.Debug);
}
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextProfileMask, (int)SDL_GLProfile.Core);
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextMajorVersion, 4);
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextMinorVersion, 0);
IntPtr contextHandle = Sdl2Native.SDL_GL_CreateContext(sdlHandle);
if (contextHandle == IntPtr.Zero)
{
unsafe
{
byte * error = Sdl2Native.SDL_GetError();
string errorString = GetString(error);
throw new VeldridException("Unable to create GL Context: " + errorString);
}
}
int result = Sdl2Native.SDL_GL_SetSwapInterval(0);
OpenGLPlatformInfo platformInfo = new OpenGLPlatformInfo(
contextHandle,
Sdl2Native.SDL_GL_GetProcAddress,
context => Sdl2Native.SDL_GL_MakeCurrent(sdlHandle, context),
Sdl2Native.SDL_GL_DeleteContext,
() => Sdl2Native.SDL_GL_SwapWindow(sdlHandle));
return(Hacks.CreateOpenGL(
platformInfo,
(uint)window.Width,
(uint)window.Height,
gdCI.DebugDevice));
}