public void Create(int width, int height)
{
if (glGenFramebuffersEXT == null)
{
glGenFramebuffersEXT = OpenGL.GetDelegateFor <OpenGL.glGenFramebuffersEXT>();
glBindFramebufferEXT = OpenGL.GetDelegateFor <OpenGL.glBindFramebufferEXT>();
glGenRenderbuffersEXT = OpenGL.GetDelegateFor <OpenGL.glGenRenderbuffersEXT>();
glBindRenderbufferEXT = OpenGL.GetDelegateFor <OpenGL.glBindRenderbufferEXT>();
glRenderbufferStorageEXT = OpenGL.GetDelegateFor <OpenGL.glRenderbufferStorageEXT>();
glFramebufferRenderbufferEXT = OpenGL.GetDelegateFor <OpenGL.glFramebufferRenderbufferEXT>();
glDeleteRenderbuffersEXT = OpenGL.GetDelegateFor <OpenGL.glDeleteRenderbuffersEXT>();
glDeleteFramebuffersEXT = OpenGL.GetDelegateFor <OpenGL.glDeleteFramebuffersEXT>();
}
// First, create the frame buffer and bind it.
glGenFramebuffersEXT(1, this.framebufferId);
glBindFramebufferEXT(OpenGL.GL_FRAMEBUFFER, this.framebufferId[0]);
// Create the color render buffer and bind it, then allocate storage for it.
glGenRenderbuffersEXT(1, this.colorRenderBufferId);
glBindRenderbufferEXT(OpenGL.GL_RENDERBUFFER, this.colorRenderBufferId[0]);
glRenderbufferStorageEXT(OpenGL.GL_RENDERBUFFER, OpenGL.GL_RGBA, width, height);
// Create the depth render buffer and bind it, then allocate storage for it.
glGenRenderbuffersEXT(1, this.depthRenderBufferId);
glBindRenderbufferEXT(OpenGL.GL_RENDERBUFFER, this.depthRenderBufferId[0]);
glRenderbufferStorageEXT(OpenGL.GL_RENDERBUFFER, OpenGL.GL_DEPTH_COMPONENT24, width, height);
// Set the render buffer for color and depth.
glFramebufferRenderbufferEXT(OpenGL.GL_FRAMEBUFFER, OpenGL.GL_COLOR_ATTACHMENT0,
OpenGL.GL_RENDERBUFFER, this.colorRenderBufferId[0]);
glFramebufferRenderbufferEXT(OpenGL.GL_FRAMEBUFFER, OpenGL.GL_DEPTH_ATTACHMENT,
OpenGL.GL_RENDERBUFFER, this.depthRenderBufferId[0]);
}
/// <summary>
/// Create, update, use and delete a renderbuffer object.
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="internalformat"></param>
/// <param name="bufferType"></param>
public Renderbuffer(int width, int height, uint internalformat, RenderbufferType bufferType)
{
if (glGenRenderbuffers == null)
{
glGenRenderbuffers = OpenGL.GetDelegateFor <OpenGL.glGenRenderbuffersEXT>();
glBindRenderbuffer = OpenGL.GetDelegateFor <OpenGL.glBindRenderbufferEXT>();
glRenderbufferStorage = OpenGL.GetDelegateFor <OpenGL.glRenderbufferStorageEXT>();
}
this.Width = width;
this.Height = height;
this.BufferType = bufferType;
glGenRenderbuffers(1, renderbuffer);
glBindRenderbuffer(OpenGL.GL_RENDERBUFFER, renderbuffer[0]);
glRenderbufferStorage(OpenGL.GL_RENDERBUFFER,
internalformat,// TODO: add comment about OpenGL.GL_DEPTH24_STENCIL8, OpenGL.GL_RGBA,
width, height);
}
