ARB_copy_image.hpp

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#pragma once
#ifndef OGLPLUS_EXT_ARB_COPY_IMAGE_1406270722_HPP
#define OGLPLUS_EXT_ARB_COPY_IMAGE_1406270722_HPP

#if OGLPLUS_DOCUMENTATION_ONLY || GL_ARB_copy_image

#include <oglplus/object/name.hpp>
#include <oglplus/error/object.hpp>
#include <oglplus/extension.hpp>

namespace oglplus {


class ARB_copy_image
{
private:
    template <typename SrcObjTag, typename DstObjTag>
    static void _chk_params(void)
    {
        static_assert(
            std::is_same<SrcObjTag, tag::Texture>() ||
            std::is_same<SrcObjTag, tag::Renderbuffer>(),
            "Source object must be a Texture or a Renderbuffer"
        );
        static_assert(
            std::is_same<DstObjTag, tag::Texture>() ||
            std::is_same<DstObjTag, tag::Renderbuffer>(),
            "Destination object must be a Texture or a Renderbuffer"
        );
    }
public:
    OGLPLUS_EXTENSION_CLASS(ARB, copy_image)

    template <typename SrcObjTag, typename DstObjTag>
    static void CopyImageSubData(
        ObjectName<SrcObjTag> src_name,
        typename ObjBindingOps<SrcObjTag>::Target src_target,
        GLint src_level,
        GLint src_x, GLint src_y, GLint src_z,
        ObjectName<DstObjTag> dst_name,
        typename ObjBindingOps<DstObjTag>::Target dst_target,
        GLint dst_level,
        GLint dst_x, GLint dst_y, GLint dst_z,
        GLsizei width, GLsizei height, GLsizei depth
    )
    {
        _chk_params<SrcObjTag, DstObjTag>();
        OGLPLUS_GLFUNC(CopyImageSubData)(
            GetGLName(src_name),
            GLenum(src_target),
            src_level,
            src_x, src_y, src_z,
            GetGLName(dst_name),
            GLenum(dst_target),
            dst_level,
            dst_x, dst_y, dst_z,
            width, height, depth
        );
        OGLPLUS_CHECK(
            CopyImageSubData,
            ObjectPairError,
            Subject(dst_name).
            SubjectBinding(dst_target).
            Object(src_name).
            ObjectBinding(src_target)
        );
    }
};

} // namespace oglplus

#endif // ARB_copy_image

#endif // include guard