public void AttachRenderbuffer(FramebufferAttachmentPoint attachmentPoint, IRenderbuffer renderbuffer)
{
var newDesc = new FramebufferAttachmentDescription
{
Type = FramebufferAttachmentType.Renderbufer,
Renderbuffer = renderbuffer,
};
if (IsRedundant(attachmentPoint, ref newDesc))
{
return;
}
var framebufferTarget = context.Bindings.Framebuffers.EditingTarget;
context.Bindings.Framebuffers.ByTarget(framebufferTarget).Set(this);
GL.FramebufferRenderbuffer((int)framebufferTarget, (int)attachmentPoint, (int)RenderbufferTarget.Renderbuffer, renderbuffer.Handle);
UpdateStoredDescription(attachmentPoint, ref newDesc);
}
public void AttachTextureAsLayeredImage(FramebufferAttachmentPoint attachmentPoint, ITexture2DMultisampleArray texture)
{
var newDesc = new FramebufferAttachmentDescription
{
Type = FramebufferAttachmentType.TextureLayers,
TextureTarget = TextureTarget.Texture2DMultisampleArray,
Texture = texture
};
if (IsRedundant(attachmentPoint, ref newDesc))
{
return;
}
var framebufferTarget = context.Bindings.Framebuffers.EditingTarget;
context.Bindings.Framebuffers.ByTarget(framebufferTarget).Set(this);
//gl.FramebufferTexture((int)framebufferTarget, (int)attachmentPoint, texture.Handle, 0);
GL.FramebufferTexture2D((int)framebufferTarget, (int)attachmentPoint, (int)texture.Target, texture.Handle, 0);
UpdateStoredDescription(attachmentPoint, ref newDesc);
}
private void UpdateStoredDescription(FramebufferAttachmentPoint attachmentPoint, ref FramebufferAttachmentDescription newDesc)
{
if ((FramebufferAttachmentPoint.Color0 <= attachmentPoint && attachmentPoint <= FramebufferAttachmentPoint.Color15))
{
int index = attachmentPoint - FramebufferAttachmentPoint.Color0;
colorAttachments[index] = newDesc;
if (index >= enabledColorAttachmentsRange)
{
enabledColorAttachmentsRange = index + 1;
}
}
else if (attachmentPoint == FramebufferAttachmentPoint.DepthStencil || attachmentPoint == FramebufferAttachmentPoint.Depth)
{
depthAttachment = newDesc;
}
else if (attachmentPoint == FramebufferAttachmentPoint.DepthStencil || attachmentPoint == FramebufferAttachmentPoint.Stencil)
{
stencilAttachment = newDesc;
}
}
public void AttachTextureAsLayeredImage(FramebufferAttachmentPoint attachmentPoint, ITextureCubemap texture, int level)
{
var newDesc = new FramebufferAttachmentDescription
{
Type = FramebufferAttachmentType.TextureLayers,
TextureTarget = TextureTarget.TextureCubeMap,
Texture = texture,
Level = level
};
if (IsRedundant(attachmentPoint, ref newDesc))
{
return;
}
var framebufferTarget = context.Bindings.Framebuffers.EditingTarget;
context.Bindings.Framebuffers.ByTarget(framebufferTarget).Set(this);
//gl.FramebufferTexture(ft, fa, d.Texture.Handle, d.Level);
GL.FramebufferTexture2D((int)framebufferTarget, (int)attachmentPoint, (int)texture.Target, texture.Handle, level);
UpdateStoredDescription(attachmentPoint, ref newDesc);
}
public void AttachTextureImage(FramebufferAttachmentPoint attachmentPoint, ITextureCubemap texture, int level, CubemapFace cubemapFace)
{
var newDesc = new FramebufferAttachmentDescription
{
Type = FramebufferAttachmentType.Texture,
TextureTarget = TextureTarget.TextureCubeMap,
Texture = texture,
Level = level,
Layer = cubemapFace - CubemapFace.PositiveX
};
if (IsRedundant(attachmentPoint, ref newDesc))
{
return;
}
var framebufferTarget = context.Bindings.Framebuffers.EditingTarget;
context.Bindings.Framebuffers.ByTarget(framebufferTarget).Set(this);
GL.FramebufferTexture2D((int)framebufferTarget, (int)attachmentPoint, (int)cubemapFace, texture.Handle, level);
UpdateStoredDescription(attachmentPoint, ref newDesc);
}
public void AttachTextureImage(FramebufferAttachmentPoint attachmentPoint, ITexture3D texture, int level, int depthLayer)
{
var newDesc = new FramebufferAttachmentDescription
{
Type = FramebufferAttachmentType.Texture,
TextureTarget = TextureTarget.Texture3D,
Texture = texture,
Level = level,
Layer = depthLayer
};
if (IsRedundant(attachmentPoint, ref newDesc))
{
return;
}
var framebufferTarget = context.Bindings.Framebuffers.EditingTarget;
context.Bindings.Framebuffers.ByTarget(framebufferTarget).Set(this);
GL.FramebufferTextureLayer((int)framebufferTarget, (int)attachmentPoint, texture.Handle, level, depthLayer);
UpdateStoredDescription(attachmentPoint, ref newDesc);
}
public static bool Equals(ref FramebufferAttachmentDescription a1, ref FramebufferAttachmentDescription a2)
{
switch (a1.Type)
{
case FramebufferAttachmentType.Disabled:
return(a2.Type == FramebufferAttachmentType.Disabled);
case FramebufferAttachmentType.Renderbufer:
return(a2.Type == FramebufferAttachmentType.Renderbufer &&
a1.Renderbuffer == a2.Renderbuffer);
case FramebufferAttachmentType.Texture:
case FramebufferAttachmentType.TextureLayers:
return(a1.Type == a2.Type &&
a1.TextureTarget == a2.TextureTarget &&
a1.Texture == a2.Texture &&
a1.Level == a2.Level &&
a1.Layer == a2.Layer);
default: throw new ArgumentOutOfRangeException("a1.Type");
}
}
private bool IsRedundant(FramebufferAttachmentPoint attachmentPoint, ref FramebufferAttachmentDescription newDesc)
{
switch (attachmentPoint)
{
case FramebufferAttachmentPoint.Color0:
case FramebufferAttachmentPoint.Color1:
case FramebufferAttachmentPoint.Color2:
case FramebufferAttachmentPoint.Color3:
case FramebufferAttachmentPoint.Color4:
case FramebufferAttachmentPoint.Color5:
case FramebufferAttachmentPoint.Color6:
case FramebufferAttachmentPoint.Color7:
case FramebufferAttachmentPoint.Color8:
case FramebufferAttachmentPoint.Color9:
case FramebufferAttachmentPoint.Color10:
case FramebufferAttachmentPoint.Color11:
case FramebufferAttachmentPoint.Color12:
case FramebufferAttachmentPoint.Color13:
case FramebufferAttachmentPoint.Color14:
case FramebufferAttachmentPoint.Color15:
return(FramebufferAttachmentDescription.Equals(ref newDesc, ref colorAttachments[attachmentPoint - FramebufferAttachmentPoint.Color0]));
case FramebufferAttachmentPoint.DepthStencil:
return(FramebufferAttachmentDescription.Equals(ref newDesc, ref depthAttachment) &&
FramebufferAttachmentDescription.Equals(ref newDesc, ref stencilAttachment));
case FramebufferAttachmentPoint.Depth:
return(FramebufferAttachmentDescription.Equals(ref newDesc, ref depthAttachment));
case FramebufferAttachmentPoint.Stencil:
return(FramebufferAttachmentDescription.Equals(ref newDesc, ref stencilAttachment));
default:
throw new ArgumentOutOfRangeException("attachmentPoint");
}
}
