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/*
* Copyright (c) 2014-2017, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/
#ifndef NV_FLOW_SHADER_H
#define NV_FLOW_SHADER_H
// --------------------------- NvFlow Shader Parameters -------------------------------
///@defgroup NvFlowContext
///@{
#if (NV_FLOW_SHADER_UTILS != 0)
int3 NvFlow_tableVal_to_coord(uint val)
{
uint valInv = ~val;
return int3(
(valInv >> 0) & 0x3FF,
(valInv >> 10) & 0x3FF,
(valInv >> 20) & 0x3FF);
}
#define NV_FLOW_DISPATCH_ID_TO_VIRTUAL(blockListSRV, params) \
int3 DispatchIDToVirtual(uint3 tidx) \
{ \
uint blockID = tidx.x >> params.blockDimBits.x; \
int3 vBlockIdx = NvFlow_tableVal_to_coord(blockListSRV[blockID]); \
int3 vidx = (vBlockIdx << params.blockDimBits.xyz) | (tidx & (params.blockDim.xyz - int3(1,1,1))); \
return vidx; \
}
#define NV_FLOW_VIRTUAL_TO_REAL(name, blockTableSRV, params) \
int3 name(int3 vidx) \
{ \
if(params.isVTR.x != 0) \
{ \
return vidx; \
} \
else \
{ \
int3 vBlockIdx = vidx >> params.blockDimBits.xyz; \
int3 rBlockIdx = NvFlow_tableVal_to_coord(blockTableSRV[vBlockIdx]); \
int3 ridx = (rBlockIdx << params.blockDimBits.xyz) | (vidx & (params.blockDim.xyz - int3(1, 1, 1))); \
return ridx; \
} \
}
#define NV_FLOW_VIRTUAL_TO_REAL_LINEAR(name, blockTableSRV, params) \
float3 name(float3 vidx) \
{ \
if(params.isVTR.x != 0) \
{ \
return vidx; \
} \
else \
{ \
float3 vBlockIdxf = params.blockDimInv.xyz * vidx; \
int3 vBlockIdx = int3(floor(vBlockIdxf)); \
int3 rBlockIdx = NvFlow_tableVal_to_coord(blockTableSRV[vBlockIdx]); \
float3 rBlockIdxf = float3(rBlockIdx); \
float3 ridx = float3(params.linearBlockDim.xyz * rBlockIdx) + float3(params.blockDim.xyz) * (vBlockIdxf - float3(vBlockIdx)) + float3(params.linearBlockOffset.xyz); \
return ridx; \
} \
}
#endif
//! Parameters for shaders using the point format (no linear interpolation)
struct NvFlowShaderPointParams
{
NvFlowUint4 isVTR;
NvFlowUint4 blockDim;
NvFlowUint4 blockDimBits;
NvFlowUint4 poolGridDim;
NvFlowUint4 gridDim;
};
//! Parameters for shaders using the linear format (linear interpolation)
struct NvFlowShaderLinearParams
{
NvFlowUint4 isVTR;
NvFlowUint4 blockDim;
NvFlowUint4 blockDimBits;
NvFlowUint4 poolGridDim;
NvFlowUint4 gridDim;
NvFlowFloat4 blockDimInv;
NvFlowUint4 linearBlockDim;
NvFlowUint4 linearBlockOffset;
NvFlowFloat4 dimInv;
NvFlowFloat4 vdim;
NvFlowFloat4 vdimInv;
};
///@}
#endif
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