public MappingBuffer(BufferTarget bufferTarget, uint bufferObject, MapBufferAccess access)
{
// TODO: Complete member initialization
this.bufferTarget = bufferTarget;
this.bufferObject = bufferObject;
GL.BindBuffer(bufferTarget, bufferObject);
this.BufferPointer = GL.MapBuffer(bufferTarget, access);
}
/// <summary>
/// Start to read/write buffer.
/// </summary>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public virtual IntPtr MapBuffer(MapBufferAccess access, bool bind = true)
{
if (bind)
{
glBindBuffer((uint)this.Target, this.BufferId);
}
IntPtr pointer = glMapBuffer((uint)this.Target, (uint)access);
return(pointer);
}
/// <summary>
/// Start to read/write buffer.
/// </summary>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public virtual IntPtr MapBuffer(MapBufferAccess access, bool bind = true)
{
if (bind)
{
if (glBindBuffer == null)
{
glBindBuffer = OpenGL.GetDelegateFor <OpenGL.glBindBuffer>();
}
glBindBuffer((uint)this.Target, this.BufferId);
}
if (glMapBuffer == null)
{
glMapBuffer = OpenGL.GetDelegateFor <OpenGL.glMapBuffer>();
}
IntPtr pointer = glMapBuffer((uint)this.Target, (uint)access);
return(pointer);
}
/// <summary>
/// 把服务端（GPU）上的当前Buffer Object映射到客户端（CPU）的内存上。
/// </summary>
/// <param name="target"></param>
/// <param name="access"></param>
/// <returns></returns>
public static IntPtr MapBuffer(BufferTarget target, MapBufferAccess access)
{
return GetDelegateFor<glMapBuffer>()((uint)target, (uint)access);
}
/// <summary>
/// The contents of a texture may be made available for shaders to read and write by binding the texture to one of a collection of image units.
/// If the texture identified by texture does not have multiple layers or faces, the entire texture level is bound, regardless of the values specified for layered and layer
/// </summary>
/// <param name="unit">identifies the image unit [0, MAX_IMAGE_UNITS]</param>
/// <param name="TextureID">texture is the name of the texture.If texture is zero, any texture currently bound to image unit unit is unbound.</param>
/// <param name="level">selects a single level of the texture.</param>
/// <param name="layered"> If layered is TRUE, the entire level is bound. If layered is FALSE, only the single layer identified by layer will be bound</param>
/// <param name="layer"></param>
/// <param name="access">access specifies whether the texture bound to the image will be treated as READ_ONLY, WRITE_ONLY, or READ_WRITE.</param>
/// <param name="format">format specifies the format that the elements of the image will be treated as when doing formatted stores</param>
public static void BindImageTexture(uint unit, uint TextureID, int level, MapBufferAccess access, SizedInternalFormat format, bool layered = false, int layer = 0)
{
Delegates.glBindImageTexture(unit, TextureID, level, layered, layer, access, format);
}
/// <summary>
/// Maps a buffer into client space.
/// </summary>
/// <param name="target"></param>
/// <param name="access"></param>
/// <returns></returns>
public static IntPtr MapBuffer(BufferTarget target, MapBufferAccess access)
{
return(Delegates.glMapBuffer(target, access));
}
/// <summary>
/// Start to read/write buffer.
/// <para>This will returns IntPtr.Zero as this buffer allocates no data in memory.</para>
/// </summary>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public override IntPtr MapBuffer(MapBufferAccess access, bool bind = true)
{
return(IntPtr.Zero);
}
/// <summary>
/// 把服务端（GPU）上的当前Buffer Object映射到客户端（CPU）的内存上。
/// </summary>
/// <param name="target"></param>
/// <param name="access"></param>
/// <returns></returns>
public static IntPtr MapBuffer(BufferTarget target, MapBufferAccess access)
{
return(GetDelegateFor <glMapBuffer>()((uint)target, (uint)access));
}
/// <summary>
/// Start to read/write buffer.
/// <para>This will returns IntPtr.Zero as this buffer allocates no data in memory.</para>
/// </summary>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public override IntPtr MapBuffer(MapBufferAccess access, bool bind = true)
{
return IntPtr.Zero;
}
public static IntPtr MapNamedBufferEXT(uint BufferID, MapBufferAccess access)
{
return Delegates.glMapNamedBufferEXT(BufferID, access);
}
/// <summary>
/// Maps a buffer into client space.
/// </summary>
/// <param name="target"></param>
/// <param name="access"></param>
/// <returns></returns>
public static IntPtr MapBuffer(BufferTarget target, MapBufferAccess access)
{
return Delegates.glMapBuffer(target, access);
}
/// <summary>
/// Start to read/write buffer.
/// </summary>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public virtual IntPtr MapBuffer(MapBufferAccess access, bool bind = true)
{
if (bind)
{
if (glBindBuffer == null) { glBindBuffer = OpenGL.GetDelegateFor<OpenGL.glBindBuffer>(); }
glBindBuffer((uint)this.Target, this.BufferId);
}
if (glMapBuffer == null) { glMapBuffer = OpenGL.GetDelegateFor<OpenGL.glMapBuffer>(); }
IntPtr pointer = glMapBuffer((uint)this.Target, (uint)access);
return pointer;
}
/// <summary>
/// The contents of a texture may be made available for shaders to read and write by binding the texture to one of a collection of image units.
/// If the texture identified by texture does not have multiple layers or faces, the entire texture level is bound, regardless of the values specified for layered and layer
/// </summary>
/// <param name="unit">identifies the image unit [0, MAX_IMAGE_UNITS]</param>
/// <param name="TextureID">texture is the name of the texture.If texture is zero, any texture currently bound to image unit unit is unbound.</param>
/// <param name="level">selects a single level of the texture.</param>
/// <param name="layered"> If layered is TRUE, the entire level is bound. If layered is FALSE, only the single layer identified by layer will be bound</param>
/// <param name="layer"></param>
/// <param name="access">access specifies whether the texture bound to the image will be treated as READ_ONLY, WRITE_ONLY, or READ_WRITE.</param>
/// <param name="format">format specifies the format that the elements of the image will be treated as when doing formatted stores</param>
public static void BindImageTexture(uint unit, uint TextureID, int level, MapBufferAccess access, SizedInternalFormat format, bool layered = false, int layer = 0)
{
Delegates.glBindImageTexture(unit, TextureID, level, layered, layer, access, format);
}
public static IntPtr MapNamedBufferEXT(uint BufferID, MapBufferAccess access)
{
return(Delegates.glMapNamedBufferEXT(BufferID, access));
}
