void OpenGLDraw()
{
bool blend, depthTest;
GL.GetBoolean(GetPName.Blend, out blend);
GL.GetBoolean(GetPName.DepthTest, out depthTest);
GL.Enable(EnableCap.Blend);
GL.Disable(EnableCap.DepthTest);
shader.Enable();
shader.SetMVP(projection);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, texID);
lock (CrowInterface.RenderMutex) {
if (CrowInterface.IsDirty)
{
GL.TexSubImage2D(TextureTarget.Texture2D, 0,
CrowInterface.DirtyRect.Left, CrowInterface.DirtyRect.Top,
CrowInterface.DirtyRect.Width, CrowInterface.DirtyRect.Height,
OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, CrowInterface.dirtyBmp);
CrowInterface.IsDirty = false;
}
}
quad.Render(BeginMode.TriangleStrip);
GL.BindTexture(TextureTarget.Texture2D, 0);
if (!blend)
{
GL.Disable(EnableCap.Blend);
}
if (depthTest)
{
GL.Enable(EnableCap.DepthTest);
}
}
void openGLDraw()
{
//save GL states
bool blend, depthTest, cullFace;
GL.GetBoolean(GetPName.Blend, out blend);
GL.GetBoolean(GetPName.DepthTest, out depthTest);
GL.GetBoolean(GetPName.CullFace, out cullFace);
GL.Enable(EnableCap.Blend);
GL.Disable(EnableCap.DepthTest);
GL.Disable(EnableCap.CullFace);
#if MEASURE_TIME
glDrawMeasure.StartCycle();
#endif
shader.Enable();
for (int i = 0; i < ifaceControl.Count; i++)
{
shader.SetMVP(ifaceControl [i].InterfaceMVP);
ifaceControl [i].OpenGLDraw();
}
#if MEASURE_TIME
glDrawMeasure.StopCycle();
#endif
//restore GL states
if (!blend)
{
GL.Disable(EnableCap.Blend);
}
if (depthTest)
{
GL.Enable(EnableCap.DepthTest);
}
if (cullFace)
{
GL.Enable(EnableCap.CullFace);
}
}