/// <summary>
/// Binds the given <see cref="IndexBuffer"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="ibo">The <see cref="IndexBuffer"/> object to bind.</param>
public void BindIndexBuffer(IndexBuffer ibo)
{
if (ibo == null)
{
if (IndexBufferHandle == GLHandle.Zero)
{
return;
}
GL.BindBuffer(BufferTarget.ElementArrayBuffer, GLHandle.Zero);
IndexBufferHandle = GLHandle.Zero;
IndexBuffer.BoundContext = null;
IndexBuffer = null;
return;
}
ibo.EnsureUndisposed();
if (IndexBufferHandle == ibo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ibo.Handle);
IndexBufferHandle = ibo.Handle;
IndexBuffer = ibo;
IndexBuffer.BoundContext = this;
}
internal static void EnsureValid(GLHandle handle)
{
if (handle == GLHandle.Zero)
{
throw new InvalidOperationException("OpenGL error: Invalid handle generated.");
}
}
/// <summary>
/// Binds the given <see cref="FrameBuffer"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="fbo">The <see cref="FrameBuffer"/> object to bind.</param>
public void BindFrameBuffer(FrameBuffer fbo)
{
if (fbo == null)
{
if (FrameBufferHandle == GLHandle.Zero)
{
return;
}
GL.BindFramebuffer(FramebufferTarget.Framebuffer, GLHandle.Zero);
FrameBufferHandle = GLHandle.Zero;
FrameBuffer.BoundContext = null;
FrameBuffer = null;
return;
}
fbo.EnsureUndisposed();
if (FrameBufferHandle == fbo.Handle)
{
return;
}
GL.BindFramebuffer(FramebufferTarget.Framebuffer, fbo.Handle);
FrameBufferHandle = fbo.Handle;
FrameBuffer = fbo;
FrameBuffer.BoundContext = this;
}
/// <summary>
/// Binds the given <see cref="ShaderProgram"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="program">The <see cref="ShaderProgram"/> object to bind.</param>
public void BindShaderProgram(ShaderProgram program)
{
if (program == null)
{
if (ShaderProgramHandle == GLHandle.Zero)
{
return;
}
GL.UseProgram(GLHandle.Zero);
ShaderProgramHandle = GLHandle.Zero;
ShaderProgram.BoundContext = null;
ShaderProgram = null;
return;
}
program.EnsureUndisposed();
if (ShaderProgramHandle == program.Handle)
{
return;
}
GL.UseProgram(program.Handle);
ShaderProgramHandle = program.Handle;
ShaderProgram = program;
ShaderProgram.BoundContext = this;
}
/// <summary>
/// Binds the given <see cref="VertexBuffer"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="vbo">The <see cref="VertexBuffer"/> object to bind.</param>
public void BindVertexBuffer(VertexBuffer vbo)
{
if (vbo == null)
{
if (VertexBufferHandle == GLHandle.Zero)
{
return;
}
GL.BindBuffer(BufferTarget.ArrayBuffer, GLHandle.Zero);
VertexBufferHandle = GLHandle.Zero;
VertexBuffer.BoundContext = null;
VertexBuffer = null;
return;
}
vbo.EnsureUndisposed();
if (VertexBufferHandle == vbo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo.Handle);
VertexBufferHandle = vbo.Handle;
VertexBuffer = vbo;
VertexBuffer.BoundContext = this;
}
/// <summary>
/// Binds the given <see cref="PixelBuffer"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="pbo">The <see cref="PixelBuffer"/> object to bind.</param>
public void BindPixelBuffer(PixelBuffer pbo)
{
if (pbo == null)
{
if (PixelBufferHandle == GLHandle.Zero)
{
return;
}
GL.BindBuffer(BufferTarget.PixelUnpackBuffer, GLHandle.Zero);
PixelBufferHandle = GLHandle.Zero;
PixelBuffer.BoundContext = null;
PixelBuffer = null;
return;
}
pbo.EnsureUndisposed();
if (PixelBufferHandle == pbo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.PixelUnpackBuffer, pbo.Handle);
PixelBufferHandle = pbo.Handle;
PixelBuffer = pbo;
PixelBuffer.BoundContext = this;
}
/// <summary>
/// Ensures that there is no active <see cref="ShaderProgram"/> object bound to the RenderContext.
/// </summary>
public void UnbindShaderProgram()
{
if (_shaderProgramHandle == GLHandle.Zero)
{
return;
}
GL.UseProgram(GLHandle.Zero);
_shaderProgramHandle = GLHandle.Zero;
_shaderProgram.BoundContext = null;
_shaderProgram = null;
}
/// <summary>
/// Ensures that there is no active <see cref="Buffers.FrameBuffer"/> object bound to the RenderContext.
/// </summary>
public void UnbindFrameBuffer()
{
if (_frameBufferHandle == GLHandle.Zero)
{
return;
}
GL.BindFramebuffer(FramebufferTarget.Framebuffer, GLHandle.Zero);
_frameBufferHandle = GLHandle.Zero;
_frameBuffer.BoundContext = null;
_frameBuffer = null;
}
/// <summary>
/// Ensures that there is no active <see cref="PixelBuffer"/> object bound to the RenderContext.
/// </summary>
public void UnbindPixelBuffer()
{
if (_pixelBufferHandle == GLHandle.Zero)
{
return;
}
GL.BindBuffer(BufferTarget.PixelUnpackBuffer, GLHandle.Zero);
_pixelBufferHandle = GLHandle.Zero;
_pixelBuffer.BoundContext = null;
_pixelBuffer = null;
}
/// <summary>
/// Ensures that there is no active <see cref="VertexBuffer"/> object bound to the RenderContext.
/// </summary>
public void UnbindVertexBuffer()
{
if (_vertexBufferHandle == GLHandle.Zero)
{
return;
}
GL.BindBuffer(BufferTarget.ArrayBuffer, GLHandle.Zero);
_vertexBufferHandle = GLHandle.Zero;
_vertexBuffer.BoundContext = null;
_vertexBuffer = null;
}
/// <summary>
/// Ensures that there is no active <see cref="IndexBuffer"/> object bound to the RenderContext.
/// </summary>
public void UnbindIndexBuffer()
{
if (_indexBufferHandle == GLHandle.Zero)
{
return;
}
GL.BindBuffer(BufferTarget.ElementArrayBuffer, GLHandle.Zero);
_indexBufferHandle = GLHandle.Zero;
_indexBuffer.BoundContext = null;
_indexBuffer = null;
}
/// <summary>
/// Ensures that the given <see cref="IndexBuffer"/> object is unbound.
/// </summary>
/// <param name="ibo">The <see cref="IndexBuffer"/> object to ensure is unbound.</param>
public void UnbindIndexBuffer(IndexBuffer ibo)
{
if (ibo == null)
{
throw new ArgumentNullException(nameof(ibo));
}
if (IndexBufferHandle != ibo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.ElementArrayBuffer, GLHandle.Zero);
IndexBufferHandle = GLHandle.Zero;
IndexBuffer.BoundContext = null;
IndexBuffer = null;
}
/// <summary>
/// Ensures that the given <see cref="FrameBuffer"/> object is unbound.
/// </summary>
/// <param name="fbo">The <see cref="FrameBuffer"/> object to ensure is unbound.</param>
public void UnbindFrameBuffer(FrameBuffer fbo)
{
if (fbo == null)
{
throw new ArgumentNullException(nameof(fbo));
}
if (FrameBufferHandle != fbo.Handle)
{
return;
}
GL.BindFramebuffer(FramebufferTarget.Framebuffer, GLHandle.Zero);
FrameBufferHandle = GLHandle.Zero;
FrameBuffer.BoundContext = null;
FrameBuffer = null;
}
/// <summary>
/// Ensures that the given <see cref="VertexBuffer"/> object is unbound.
/// </summary>
/// <param name="vbo">The <see cref="VertexBuffer"/> object to ensure is unbound.</param>
public void UnbindVertexBuffer(VertexBuffer vbo)
{
if (vbo == null)
{
throw new ArgumentNullException(nameof(vbo));
}
if (VertexBufferHandle != vbo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.ArrayBuffer, GLHandle.Zero);
VertexBufferHandle = GLHandle.Zero;
VertexBuffer.BoundContext = null;
VertexBuffer = null;
}
/// <summary>
/// Ensures that the given <see cref="ShaderProgram"/> object is unbound.
/// </summary>
/// <param name="program">The <see cref="ShaderProgram"/> object to ensure is unbound.</param>
public void UnbindShaderProgram(ShaderProgram program)
{
if (program == null)
{
throw new ArgumentNullException(nameof(program));
}
if (ShaderProgramHandle != program.Handle)
{
return;
}
GL.UseProgram(GLHandle.Zero);
ShaderProgramHandle = GLHandle.Zero;
ShaderProgram.BoundContext = null;
ShaderProgram = null;
}
/// <summary>
/// Ensures that the given <see cref="PixelBuffer"/> object is unbound.
/// </summary>
/// <param name="pbo">The <see cref="PixelBuffer"/> object to ensure is unbound.</param>
public void UnbindPixelBuffer(PixelBuffer pbo)
{
if (pbo == null)
{
throw new ArgumentNullException(nameof(pbo));
}
if (PixelBufferHandle != pbo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.PixelUnpackBuffer, GLHandle.Zero);
PixelBufferHandle = GLHandle.Zero;
PixelBuffer.BoundContext = null;
PixelBuffer = null;
}
/// <summary>
/// Binds the given <see cref="ShaderProgram"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="program">The <see cref="ShaderProgram"/> object to bind.</param>
public void BindShaderProgram(ShaderProgram program)
{
if (program == null)
{
throw new ArgumentNullException(nameof(program));
}
program.EnsureUndisposed();
if (_shaderProgramHandle == program.Handle)
{
return;
}
GL.UseProgram(program.Handle);
_shaderProgramHandle = program.Handle;
_shaderProgram = program;
_shaderProgram.BoundContext = this;
}
/// <summary>
/// Binds the given <see cref="VertexBuffer"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="vbo">The <see cref="VertexBuffer"/> object to bind.</param>
public void BindVertexBuffer(VertexBuffer vbo)
{
if (vbo == null)
{
throw new ArgumentNullException(nameof(vbo));
}
vbo.EnsureUndisposed();
if (_vertexBufferHandle == vbo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo.Handle);
_vertexBufferHandle = vbo.Handle;
_vertexBuffer = vbo;
_vertexBuffer.BoundContext = this;
}
/// <summary>
/// Binds the given <see cref="IndexBuffer"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="ibo">The <see cref="IndexBuffer"/> object to bind.</param>
public void BindIndexBuffer(IndexBuffer ibo)
{
if (ibo == null)
{
throw new ArgumentNullException(nameof(ibo));
}
ibo.EnsureUndisposed();
if (_indexBufferHandle == ibo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ibo.Handle);
_indexBufferHandle = ibo.Handle;
_indexBuffer = ibo;
_indexBuffer.BoundContext = this;
}
/// <summary>
/// Binds the given <see cref="PixelBuffer"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="pbo">The <see cref="PixelBuffer"/> object to bind.</param>
public void BindPixelBuffer(PixelBuffer pbo)
{
if (pbo == null)
{
throw new ArgumentNullException(nameof(pbo));
}
pbo.EnsureUndisposed();
if (_pixelBufferHandle == pbo.Handle)
{
return;
}
GL.BindBuffer(BufferTarget.PixelUnpackBuffer, pbo.Handle);
_pixelBufferHandle = pbo.Handle;
_pixelBuffer = pbo;
_pixelBuffer.BoundContext = this;
}
/// <summary>
/// Binds the given <see cref="_frameBuffer"/> object to the <see cref="RenderContext"/>.
/// </summary>
/// <param name="fbo">The <see cref="_frameBuffer"/> object to bind.</param>
public void BindFrameBuffer(FrameBuffer fbo)
{
if (fbo == null)
{
UnbindFrameBuffer();
return;
}
fbo.EnsureUndisposed();
if (_frameBufferHandle == fbo.Handle)
{
return;
}
GL.BindFramebuffer(FramebufferTarget.Framebuffer, fbo.Handle);
_frameBufferHandle = fbo.Handle;
_frameBuffer = fbo;
_frameBuffer.BoundContext = this;
}
