public static unsafe GraphicsDevice CreateDefaultOpenGLGraphicsDevice(
GraphicsDeviceOptions options,
Sdl2Window window,
GraphicsBackend backend,
bool colorSrgb)
{
Sdl2Native.SDL_ClearError();
IntPtr sdlHandle = window.SdlWindowHandle;
SDL_SysWMinfo sysWmInfo;
Sdl2Native.SDL_GetVersion(&sysWmInfo.version);
Sdl2Native.SDL_GetWMWindowInfo(sdlHandle, &sysWmInfo);
SetSDLGLContextAttributes(options, backend, colorSrgb);
IntPtr contextHandle = Sdl2Native.SDL_GL_CreateContext(sdlHandle);
byte * error = Sdl2Native.SDL_GetError();
if (error != null)
{
string errorString = GetString(error);
if (!string.IsNullOrEmpty(errorString))
{
throw new VeldridException(
$"Unable to create OpenGL Context: \"{errorString}\". This may indicate that the system does not support the requested OpenGL profile, version, or Swapchain format.");
}
}
int actualDepthSize;
int result = Sdl2Native.SDL_GL_GetAttribute(SDL_GLAttribute.DepthSize, &actualDepthSize);
int actualStencilSize;
result = Sdl2Native.SDL_GL_GetAttribute(SDL_GLAttribute.StencilSize, &actualStencilSize);
result = Sdl2Native.SDL_GL_SetSwapInterval(options.SyncToVerticalBlank ? 1 : 0);
OpenGL.OpenGLPlatformInfo platformInfo = new OpenGL.OpenGLPlatformInfo(
contextHandle,
Sdl2Native.SDL_GL_GetProcAddress,
context => Sdl2Native.SDL_GL_MakeCurrent(sdlHandle, context),
() => Sdl2Native.SDL_GL_GetCurrentContext(),
() => Sdl2Native.SDL_GL_MakeCurrent(new SDL_Window(IntPtr.Zero), IntPtr.Zero),
Sdl2Native.SDL_GL_DeleteContext,
() => Sdl2Native.SDL_GL_SwapWindow(sdlHandle),
sync => Sdl2Native.SDL_GL_SetSwapInterval(sync ? 1 : 0));
return(GraphicsDevice.CreateOpenGL(
options,
platformInfo,
(uint)window.Width,
(uint)window.Height));
}
public static unsafe GraphicsDevice CreateOpenGLGraphicsDevice(Sdl2Window window, GraphicsDeviceOptions options)
{
Sdl2Native.SDL_ClearError();
var sdlHandle = window.SdlWindowHandle;
SDL_SysWMinfo sdlSysWmInfo;
Sdl2Native.SDL_GetVersion(&sdlSysWmInfo.version);
Sdl2Native.SDL_GetWMWindowInfo(sdlHandle, &sdlSysWmInfo);
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextFlags, options.Debug ? 3 : 2);
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextProfileMask, 1);
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextMajorVersion, 4);
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.ContextMinorVersion, 1);
options.SwapchainDepthFormat = PixelFormat.D32_Float_S8_UInt;
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.DepthSize, 32);
Sdl2Native.SDL_GL_SetAttribute(SDL_GLAttribute.StencilSize, 8);
var contextHandle = Sdl2Native.SDL_GL_CreateContext(sdlHandle);
var error = Sdl2Native.SDL_GetError();
if ((IntPtr)error != IntPtr.Zero)
{
var str = GetString(error);
if (!string.IsNullOrEmpty(str))
{
throw new VeldridException(string.Format("Unable to create OpenGL Context: \"{0}\". This may indicate that the system does not support the requested OpenGL profile, version, or Swapchain format.", str));
}
}
int num1;
Sdl2Native.SDL_GL_GetAttribute(SDL_GLAttribute.DepthSize, &num1);
int num2;
Sdl2Native.SDL_GL_GetAttribute(SDL_GLAttribute.StencilSize, &num2);
Sdl2Native.SDL_GL_SetSwapInterval(options.SyncToVerticalBlank ? 1 : 0);
var getProcAddress = new Func <string, IntPtr>(Sdl2Native.SDL_GL_GetProcAddress);
var makeCurrent = (Action <IntPtr>)(context => Sdl2Native.SDL_GL_MakeCurrent(sdlHandle, context));
var deleteContext = new Action <IntPtr>(Sdl2Native.SDL_GL_DeleteContext);
var swapBuffers = (Action)(() => Sdl2Native.SDL_GL_SwapWindow(sdlHandle));
var platformInfo = new OpenGLPlatformInfo(contextHandle, getProcAddress, makeCurrent, Sdl2Native.SDL_GL_GetCurrentContext, () => Sdl2Native.SDL_GL_MakeCurrent(new SDL_Window(IntPtr.Zero), IntPtr.Zero), deleteContext, swapBuffers, sync => Sdl2Native.SDL_GL_SetSwapInterval(sync ? 1 : 0));
return(GraphicsDevice.CreateOpenGL(options, platformInfo, (uint)window.Width, (uint)window.Height));
}