public void Init(IntPtr nativeDeviceHandle, IntPtr nativeWindowHandle, PlatformBase platform)
{
_platform = platform;
_eglLib = platform.LoadLibrary("libEGL");
if (_eglLib == IntPtr.Zero)
{
Engine.Log.Error("Couldn't load EGL.", MessageSource.Egl);
return;
}
IntPtr gles = platform.LoadLibrary("libGLESv2");
if (gles == IntPtr.Zero)
{
Engine.Log.Error("Couldn't load GLES.", MessageSource.Egl);
return;
}
string extensions = Egl.QueryString(IntPtr.Zero, Egl.Query.EGL_EXTENSIONS);
Egl.Error err = Egl.GetError();
if (extensions == null || err != Egl.Error.Success)
{
Engine.Log.Error($"Couldn't load extensions. {err}", MessageSource.Egl);
extensions = "";
}
_display = Egl.GetDisplay(nativeDeviceHandle);
if (_display == IntPtr.Zero)
{
Engine.Log.Error($"Couldn't initialize display. {Egl.GetError()}", MessageSource.Egl);
return;
}
var majorVersion = 3;
int majorVer = majorVersion;
var minorVer = 0;
if (RenderDoc.Loaded)
{
minorVer = 1;
}
if (!Egl.Init(_display, ref majorVer, ref minorVer))
{
Engine.Log.Error($"Couldn't initialize Egl. {Egl.GetError()}", MessageSource.Egl);
return;
}
// Pick config
var totalConfigs = 0;
Egl.GetConfigs(_display, null, 0, ref totalConfigs);
if (totalConfigs == 0)
{
Engine.Log.Error($"No configs for current display. {Egl.GetError()}", MessageSource.Egl);
return;
}
var configs = new IntPtr[totalConfigs];
Egl.GetConfigs(_display, configs, totalConfigs, ref totalConfigs);
if (totalConfigs == 0)
{
Engine.Log.Error($"No configs for current display. {Egl.GetError()}", MessageSource.Egl);
return;
}
int configHandle = SupportedPixelFormat(configs);
if (configHandle == 0)
{
Engine.Log.Error("No valid config found.", MessageSource.Egl);
return;
}
IntPtr config = configs[configHandle - 1];
if (!Egl.BindAPI(Egl.API.EGL_OPENGL_ES_API))
{
Engine.Log.Error($"Couldn't bind EGL API. {Egl.GetError()}", MessageSource.Egl);
return;
}
int[] attributes =
{
(int)Egl.ContextAttribute.EGL_CONTEXT_CLIENT_VERSION,
majorVersion,
0x3038 // EGL_NONE
};
_context = Egl.CreateContext(_display, config, IntPtr.Zero, attributes);
if (_context == IntPtr.Zero)
{
Engine.Log.Error($"Context creation failed. {Egl.GetError()}", MessageSource.Egl);
return;
}
_surface = Egl.CreateWindowSurface(_display, config, nativeWindowHandle, null);
if (_surface == IntPtr.Zero)
{
Engine.Log.Error($"Surface creation failed. {Egl.GetError()}", MessageSource.Egl);
return;
}
Valid = true;
}
