hip_texture.h

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/*
Copyright (c) 2015 - present Advanced Micro Devices, Inc. All rights reserved.

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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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THE SOFTWARE.
*/

//#pragma once

#ifndef HIP_INCLUDE_HIP_HCC_DETAIL_HIP_TEXTURE_H
#define HIP_INCLUDE_HIP_HCC_DETAIL_HIP_TEXTURE_H

#include <limits.h>
#include <hip/hcc_detail/driver_types.h>
#include <hip/hcc_detail/channel_descriptor.h>
#include <hip/hcc_detail/texture_types.h>
//#include <hip/hcc_detail/hip_runtime.h>

//----
//Texture - TODO - likely need to move this to a separate file only included with kernel compilation.
#define hipTextureType1D 1

#if __cplusplus
template <class T, int texType=hipTextureType1D, hipTextureReadMode readMode=hipReadModeElementType>
struct texture : public textureReference {

    const T * _dataPtr;  // pointer to underlying data.

    //texture() : filterMode(hipFilterModePoint), normalized(false), _dataPtr(NULL) {};
    unsigned int width;
    unsigned int height;

};
#endif


#define tex1Dfetch(_tex, _addr) (_tex._dataPtr[_addr])

#define tex2D(_tex, _dx, _dy) \
  _tex._dataPtr[(unsigned int)_dx + (unsigned int)_dy*(_tex.width)]

// These are C++ APIs - maybe belong in separate file.
// C API:
#if 0
hipChannelFormatDesc  hipBindTexture(size_t *offset, struct textureReference *tex, const void *devPtr, const struct hipChannelFormatDesc *desc, size_t size=UINT_MAX)
{
    tex->_dataPtr = devPtr;
}
#endif


// End doxygen API:
#endif