public void Dispose()
{
uint handle = Handle;
glDevice.BindFramebuffer(0);
glDevice.glDeleteFramebuffers(1, ref handle);
glDevice.glDeleteRenderbuffers(1, ref colorAttachment);
if (depthStencilAttachment != 0)
{
glDevice.glDeleteRenderbuffers(1, ref depthStencilAttachment);
}
if (Texture != 0)
{
glDevice.glDeleteTextures(1, ref Texture);
}
glDevice = null;
Handle = 0;
}
public OpenGLBackbuffer(
ModernGLDevice device,
int width,
int height,
DepthFormat depthFormat,
int multiSampleCount
)
{
Width = width;
Height = height;
glDevice = device;
DepthFormat = depthFormat;
MultiSampleCount = multiSampleCount;
Texture = 0;
// Generate and bind the FBO.
uint handle;
glDevice.glCreateFramebuffers(1, out handle);
Handle = handle;
glDevice.BindFramebuffer(Handle);
// Create and attach the color buffer
glDevice.glCreateRenderbuffers(1, out colorAttachment);
if (multiSampleCount > 0)
{
glDevice.glNamedRenderbufferStorageMultisample(
colorAttachment,
multiSampleCount,
GLenum.GL_RGBA8,
width,
height
);
}
else
{
glDevice.glNamedRenderbufferStorage(
colorAttachment,
GLenum.GL_RGBA8,
width,
height
);
}
glDevice.glNamedFramebufferRenderbuffer(
Handle,
GLenum.GL_COLOR_ATTACHMENT0,
GLenum.GL_RENDERBUFFER,
colorAttachment
);
if (depthFormat == DepthFormat.None)
{
// Don't bother creating a depth/stencil buffer.
depthStencilAttachment = 0;
return;
}
// Create and attach the depth/stencil buffer
glDevice.glCreateRenderbuffers(1, out depthStencilAttachment);
if (multiSampleCount > 0)
{
glDevice.glNamedRenderbufferStorageMultisample(
depthStencilAttachment,
multiSampleCount,
XNAToGL.DepthStorage[(int) depthFormat],
width,
height
);
}
else
{
glDevice.glNamedRenderbufferStorage(
depthStencilAttachment,
XNAToGL.DepthStorage[(int) depthFormat],
width,
height
);
}
glDevice.glNamedFramebufferRenderbuffer(
Handle,
GLenum.GL_DEPTH_ATTACHMENT,
GLenum.GL_RENDERBUFFER,
depthStencilAttachment
);
if (depthFormat == DepthFormat.Depth24Stencil8)
{
glDevice.glNamedFramebufferRenderbuffer(
Handle,
GLenum.GL_STENCIL_ATTACHMENT,
GLenum.GL_RENDERBUFFER,
depthStencilAttachment
);
}
}
