protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
LoadGLTextures();
GL.Enable(All.Texture2D);
GL1.ShadeModel(All1.Smooth); // Enables Smooth Shading
GL.ClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
// Create a depth renderbuffer
uint depthRenderBuffer = 0;
GL.GenRenderbuffers(1, ref depthRenderBuffer);
GL.BindRenderbuffer(All.Renderbuffer, depthRenderBuffer);
// Allocate storage for the new renderbuffer
GL.RenderbufferStorage(All.Renderbuffer, All.DepthComponent16, Size.Width, Size.Height);
// Attach the renderbuffer to the framebuffer's depth attachment point
GL.FramebufferRenderbuffer(All.Framebuffer, All.DepthAttachment, All.Renderbuffer, depthRenderBuffer);
GL1.ClearDepth(1.0f); // Depth Buffer Setup
GL1.Enable(All1.DepthTest); // Enables Depth Testing
GL1.DepthFunc(All1.Lequal); // The Type Of Depth Test To Do
GL1.Hint(All1.PerspectiveCorrectionHint, All1.Nicest); // Really Nice Perspective Calculations
GL1.Light(All1.Light0, All1.Ambient, LightAmbient); // Setup The Ambient Light
GL1.Light(All1.Light0, All1.Diffuse, LightDiffuse); // Setup The Diffuse Light
GL1.Light(All1.Light0, All1.Position, LightPosition); // Position The Light
GL1.Enable(All1.Light0);
GL1.Color4(1.0f, 1.0f, 1.0f, 0.5f); // Full Brightness, 50% Alpha ( NEW )
GL1.BlendFunc(All1.SrcAlpha, All1.One); // Blending Function For Translucency Based On Source Alpha Value ( NEW )
}
private void End11()
{
// Disable Blending by default = BlendState.Opaque
GL11.Disable(All11.Blend);
// set the blend mode
if (_blendState == BlendState.NonPremultiplied)
{
GL11.BlendFunc(All11.One, All11.OneMinusSrcAlpha);
GL11.Enable(All11.Blend);
}
if (_blendState == BlendState.AlphaBlend)
{
GL11.BlendFunc(All11.SrcAlpha, All11.OneMinusSrcAlpha);
GL11.Enable(All11.Blend);
}
if (_blendState == BlendState.Additive)
{
GL11.BlendFunc(All11.SrcAlpha, All11.One);
GL11.Enable(All11.Blend);
}
// set camera
GL11.MatrixMode(All11.Projection);
GL11.LoadIdentity();
// Switch on the flags.
switch (this.graphicsDevice.PresentationParameters.DisplayOrientation)
{
case DisplayOrientation.LandscapeLeft:
{
GL11.Rotate(-90, 0, 0, 1);
GL11.Ortho(0, this.graphicsDevice.Viewport.Height, this.graphicsDevice.Viewport.Width, 0, -1, 1);
break;
}
case DisplayOrientation.LandscapeRight:
{
GL11.Rotate(90, 0, 0, 1);
GL11.Ortho(0, this.graphicsDevice.Viewport.Height, this.graphicsDevice.Viewport.Width, 0, -1, 1);
break;
}
case DisplayOrientation.PortraitUpsideDown:
{
GL11.Rotate(180, 0, 0, 1);
GL11.Ortho(0, this.graphicsDevice.Viewport.Width, this.graphicsDevice.Viewport.Height, 0, -1, 1);
break;
}
default:
{
GL11.Ortho(0, this.graphicsDevice.Viewport.Width, this.graphicsDevice.Viewport.Height, 0, -1, 1);
break;
}
}
// Enable Scissor Tests if necessary
if (this.graphicsDevice.RenderState.ScissorTestEnable)
{
GL11.Enable(All11.ScissorTest);
}
GL11.MatrixMode(All11.Modelview);
GL11.Viewport(0, 0, this.graphicsDevice.Viewport.Width, this.graphicsDevice.Viewport.Height);
// Enable Scissor Tests if necessary
if (this.graphicsDevice.RenderState.ScissorTestEnable)
{
GL11.Scissor(this.graphicsDevice.ScissorRectangle.X, this.graphicsDevice.ScissorRectangle.Y, this.graphicsDevice.ScissorRectangle.Width, this.graphicsDevice.ScissorRectangle.Height);
}
GL11.LoadMatrix(ref _matrix.M11);
// Initialize OpenGL states (ideally move this to initialize somewhere else)
GL11.Disable(All11.DepthTest);
GL11.TexEnv(All11.TextureEnv, All11.TextureEnvMode, (int)All11.BlendSrc);
GL11.Enable(All11.Texture2D);
GL11.EnableClientState(All11.VertexArray);
GL11.EnableClientState(All11.ColorArray);
GL11.EnableClientState(All11.TextureCoordArray);
// Enable Culling for better performance
GL11.Enable(All11.CullFace);
GL11.FrontFace(All11.Cw);
GL11.Color4(1.0f, 1.0f, 1.0f, 1.0f);
_batcher.DrawBatch11(_sortMode);
}
public void EndGL11()
{
// Disable Blending by default = BlendState.Opaque
GL11.Disable(ALL11.Blend);
// set the blend mode
if (_blendState == BlendState.NonPremultiplied)
{
GL11.BlendFunc(ALL11.SrcAlpha, ALL11.OneMinusSrcAlpha);
GL11.Enable(ALL11.Blend);
}
if (_blendState == BlendState.AlphaBlend)
{
GL11.BlendFunc(ALL11.One, ALL11.OneMinusSrcAlpha);
GL11.Enable(ALL11.Blend);
}
if (_blendState == BlendState.Additive)
{
GL11.BlendFunc(ALL11.SrcAlpha, ALL11.One);
GL11.Enable(ALL11.Blend);
}
if (_blendState == BlendState.Multiply)
{
GL11.BlendFunc(ALL11.DstColor, ALL11.Zero);
GL11.Enable(ALL11.Blend);
}
if (_blendState == BlendState.Multiplyx2)
{
GL11.BlendFunc(ALL11.DstColor, ALL11.SrcColor);
GL11.Enable(ALL11.Blend);
}
// set camera
GL11.MatrixMode(ALL11.Projection);
GL11.LoadIdentity();
GL11.Ortho(0, this.graphicsDevice.Viewport.Width, this.graphicsDevice.Viewport.Height, 0, -1, 1);
// Enable Scissor Tests if necessary
if (this.graphicsDevice.RasterizerState.ScissorTestEnable)
{
GL11.Enable(ALL11.ScissorTest);
}
GL11.MatrixMode(ALL11.Modelview);
GL11.Viewport(0, 0, this.graphicsDevice.Viewport.Width, this.graphicsDevice.Viewport.Height);
// Enable Scissor Tests if necessary
if (this.graphicsDevice.RasterizerState.ScissorTestEnable)
{
GL11.Scissor(this.graphicsDevice.ScissorRectangle.X, this.graphicsDevice.ScissorRectangle.Y, this.graphicsDevice.ScissorRectangle.Width, this.graphicsDevice.ScissorRectangle.Height);
}
GL11.LoadMatrix(ref _matrix.M11);
// Initialize OpenGL states (ideally move this to initialize somewhere else)
GL11.Disable(ALL11.DepthTest);
GL11.TexEnv(ALL11.TextureEnv, ALL11.TextureEnvMode, (int)ALL11.BlendSrc);
GL11.Enable(ALL11.Texture2D);
GL11.EnableClientState(ALL11.VertexArray);
GL11.EnableClientState(ALL11.ColorArray);
GL11.EnableClientState(ALL11.TextureCoordArray);
// No need to cull sprites. they will all be same-facing by construction.
// Plus, setting frontface to Clockwise is a troll move.
GLStateManager.Cull(CullMode.None);
GL11.Color4(1.0f, 1.0f, 1.0f, 1.0f);
_batcher.DrawBatchGL11(_sortMode, _samplerState);
if (this.graphicsDevice.RasterizerState.ScissorTestEnable)
{
GL11.Disable(ALL11.ScissorTest);
}
}
