GU_Xform.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME: GU_Xform.h ( GU Library, C++)
 *
 * COMMENTS: OpenCL helpers for transforming attributes by per-point matrices.
 */

#pragma once

#include "GU_API.h"

#include <CE/CE_Array.h>

class CE_Context;

namespace GU_Xform
{

enum class XformAttribType
{
    POINT3,
    VECTOR3,
    NORMAL3,
    HPOINT4,
    QUAT4,
    MAT3,
    MAT4
};

GU_API void xformAttrib(
        CE_Context &context,
        bool recompile,
        int npts,
        const cl::Buffer &out_data,
        const cl::Buffer &in_data,
        const cl::Buffer &xform,
        XformAttribType type,
        bool keep_length = true,
        const cl::Buffer *grp = nullptr);

GU_API void xformVertexAttrib(
        CE_Context &context,
        bool recompile,
        int nvtx,
        const cl::Buffer &out_data,
        const cl::Buffer &in_data,
        const cl::Buffer &xform,
        XformAttribType type,
        const cl::Buffer &vertex_point,
        const cl::Buffer &point_xform_index,
        bool keep_length = true,
        const cl::Buffer *grp = nullptr);

GU_API void gatherPointMat4ByGroup(
        CE_Context &context,
        bool recompile,
        int npts,
        const cl::Buffer &out_xform,
        const cl::Buffer &in_xform,
        const cl::Buffer &grp);

GU_API void scatterPointMat4ByGroup(
        CE_Context &context,
        bool recompile,
        int npts,
        const cl::Buffer &out_xform,
        const cl::Buffer &in_xform,
        const cl::Buffer &grp);

} // namespace GU_Xform