private static void Load_VERSION_4_2()
{
DrawArraysInstancedBaseInstance = GetAddress <glDrawArraysInstancedBaseInstance>("glDrawArraysInstancedBaseInstance");
_DrawElementsInstancedBaseInstance = GetAddress <glDrawElementsInstancedBaseInstance>("glDrawElementsInstancedBaseInstance");
_DrawElementsInstancedBaseVertexBaseInstance = GetAddress <glDrawElementsInstancedBaseVertexBaseInstance>("glDrawElementsInstancedBaseVertexBaseInstance");
GetInternalformati = GetAddress <glGetInternalformati>("glGetInternalformativ");
GetInternalformativ = GetAddress <glGetInternalformativ>("glGetInternalformativ");
GetActiveAtomicCounterBufferi = GetAddress <glGetActiveAtomicCounterBufferi>("glGetActiveAtomicCounterBufferiv");
GetActiveAtomicCounterBufferiv = GetAddress <glGetActiveAtomicCounterBufferiv>("glGetActiveAtomicCounterBufferiv");
BindImageTexture = GetAddress <glBindImageTexture>("glBindImageTexture");
MemoryBarrier = GetAddress <glMemoryBarrier>("glMemoryBarrier");
TexStorage1D = GetAddress <glTexStorage1D>("glTexStorage1D");
TexStorage2D = GetAddress <glTexStorage2D>("glTexStorage2D");
TexStorage3D = GetAddress <glTexStorage3D>("glTexStorage3D");
DrawTransformFeedbackInstanced = GetAddress <glDrawTransformFeedbackInstanced>("glDrawTransformFeedbackInstanced");
DrawTransformFeedbackStreamInstanced = GetAddress <glDrawTransformFeedbackStreamInstanced>("glDrawTransformFeedbackStreamInstanced");
VERSION_4_2 = VERSION_4_1 && DrawArraysInstancedBaseInstance != null && _DrawElementsInstancedBaseInstance != null &&
_DrawElementsInstancedBaseVertexBaseInstance != null && GetInternalformati != null && GetInternalformativ != null &&
GetActiveAtomicCounterBufferi != null && GetActiveAtomicCounterBufferiv != null && BindImageTexture != null &&
MemoryBarrier != null && TexStorage1D != null && TexStorage2D != null && TexStorage3D != null &&
DrawTransformFeedbackInstanced != null && DrawTransformFeedbackStreamInstanced != null;
}
/// <summary>
/// bind a level of a texture to an image unit(a uniform image2D in compute shader).
/// <para>for more information check http://www.unix.com/man-page/debian/3g/GLBINDIMAGETEXTURE/</para>
/// </summary>
/// <param name="unit">Specifies the index of the image unit to which to bind the texture.<para>a uniform image2D variable's location.</para></param>
/// <param name="texture">Specifies the name of the texture to bind to the image unit.<para>texture's id from glGenTexture().</para></param>
/// <param name="level">Specifies the level of the texture that is to be bound.</param>
/// <param name="layered">Specifies whether a layered texture binding is to be established.</param>
/// <param name="layer">If <paramref name="layered"/> is false, specifies the layer of texture to be bound to the image unit. Ignored otherwise.</param>
/// <param name="access">Specifies a token indicating the type of access that will be performed on the image.<para>OpenGL.GL_READ_ONLY, OpenGL.GL_WRITE_ONLY, OpenGL.GL_READ_WRITE etc.</para></param>
/// <param name="format">Specifies the format that the elements of the image will be treated as for the purposes of formatted stores.<para>OpenGL.GL_RGBA32F etc.</para></param>
public static void BindImageTexture(uint unit, uint texture, int level, bool layered, int layer, uint access, uint format)
{
if (bindImageTexture == null)
{ bindImageTexture = OpenGL.GetDelegateFor<OpenGL.glBindImageTexture>(); }
bindImageTexture(unit, texture, level, layered, layer, access, format);
}
