public void MakeCurrent()
{
if (mContext.IsCurrent == false)
{
mContext.MakeCurrent(mWindowInfo);
}
GL.Viewport(0, 0, Width, Height);
mDisplay.SetupGLOrtho(Rectangle.FromLTRB(0, Height, Width, 0));
}
public override void BeginRender()
{
if (mWindow.Context.VSync != mDisplay.VSync)
{
mWindow.Context.VSync = mDisplay.VSync;
}
MakeCurrent();
mDisplay.SetupGLOrtho(Rectangle.FromLTRB(0, 0, Width, Height));
}
public override void BeginRender()
{
GL.Viewport(0, 0, SurfaceWidth, SurfaceHeight);
mDisplay.SetupGLOrtho(Rectangle.FromLTRB(0, SurfaceHeight, SurfaceWidth, 0));
if (mDisplay.SupportsFramebuffer)
{
// generate the frame buffer
GL.Ext.GenFramebuffers(1, out mFramebufferID);
GL.Ext.BindFramebuffer(FramebufferTarget.FramebufferExt, mFramebufferID);
// generate a depth buffer to render to
GL.Ext.GenRenderbuffers(1, out mDepthBuffer);
GL.Ext.BindRenderbuffer(RenderbufferTarget.RenderbufferExt, mDepthBuffer);
// hack here because RenderbufferStorage enum is incomplete.
GL.Ext.RenderbufferStorage(RenderbufferTarget.RenderbufferExt,
(RenderbufferStorage)OTKPixelFormat.DepthComponent,
mTextureSize.Width, mTextureSize.Height);
// attach the depth buffer
GL.Ext.FramebufferRenderbuffer(FramebufferTarget.FramebufferExt,
FramebufferAttachment.DepthAttachmentExt, RenderbufferTarget.RenderbufferExt,
mDepthBuffer);
// attach the texture
GL.Ext.FramebufferTexture2D(FramebufferTarget.FramebufferExt,
FramebufferAttachment.ColorAttachment0Ext, TextureTarget.Texture2D,
mTextureID, 0);
FramebufferErrorCode code =
GL.Ext.CheckFramebufferStatus(FramebufferTarget.FramebufferExt);
if (code != FramebufferErrorCode.FramebufferCompleteExt)
{
throw new AgateException(
"Could not complete framebuffer object.");
}
GL.Ext.BindFramebuffer(FramebufferTarget.FramebufferExt, mFramebufferID);
GL.PushAttrib(AttribMask.ViewportBit);
}
else
{
// clear the framebuffer and draw this texture to it.
GL.ClearColor(0, 0, 0, 0);
GL.Clear(ClearBufferMask.ColorBufferBit |
ClearBufferMask.DepthBufferBit);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter,
(int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter,
(int)TextureMagFilter.Linear);
Draw();
GL.TexParameter(TextureTarget.Texture2D,
TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D,
TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
}
}
