1503 lines
49 KiB
C++
1503 lines
49 KiB
C++
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// This file is part of the FidelityFX SDK.
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//
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// Copyright (c) 2022-2023 Advanced Micro Devices, Inc. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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/// A define for abstracting shared memory between shading languages.
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///
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/// @ingroup GPU
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#define FFX_GROUPSHARED groupshared
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/// A define for abstracting compute memory barriers between shading languages.
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///
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/// @ingroup GPU
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#define FFX_GROUP_MEMORY_BARRIER GroupMemoryBarrierWithGroupSync
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/// A define added to accept static markup on functions to aid CPU/GPU portability of code.
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///
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/// @ingroup GPU
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#define FFX_STATIC static
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/// A define for abstracting loop unrolling between shading languages.
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///
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/// @ingroup GPU
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#define FFX_UNROLL [unroll]
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/// A define for abstracting a 'greater than' comparison operator between two types.
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///
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/// @ingroup GPU
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#define FFX_GREATER_THAN(x, y) x > y
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/// A define for abstracting a 'greater than or equal' comparison operator between two types.
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///
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/// @ingroup GPU
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#define FFX_GREATER_THAN_EQUAL(x, y) x >= y
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/// A define for abstracting a 'less than' comparison operator between two types.
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///
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/// @ingroup GPU
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#define FFX_LESS_THAN(x, y) x < y
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/// A define for abstracting a 'less than or equal' comparison operator between two types.
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///
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/// @ingroup GPU
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#define FFX_LESS_THAN_EQUAL(x, y) x <= y
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/// A define for abstracting an 'equal' comparison operator between two types.
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///
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/// @ingroup GPU
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#define FFX_EQUAL(x, y) x == y
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/// A define for abstracting a 'not equal' comparison operator between two types.
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///
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/// @ingroup GPU
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#define FFX_NOT_EQUAL(x, y) x != y
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/// Broadcast a scalar value to a 1-dimensional floating point vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_FLOAT32(x) FfxFloat32(x)
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/// Broadcast a scalar value to a 2-dimensional floating point vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_FLOAT32X2(x) FfxFloat32(x)
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/// Broadcast a scalar value to a 3-dimensional floating point vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_FLOAT32X3(x) FfxFloat32(x)
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/// Broadcast a scalar value to a 4-dimensional floating point vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_FLOAT32X4(x) FfxFloat32(x)
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/// Broadcast a scalar value to a 1-dimensional unsigned integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_UINT32(x) FfxUInt32(x)
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/// Broadcast a scalar value to a 2-dimensional unsigned integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_UINT32X2(x) FfxUInt32(x)
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/// Broadcast a scalar value to a 4-dimensional unsigned integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_UINT32X3(x) FfxUInt32(x)
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/// Broadcast a scalar value to a 4-dimensional unsigned integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_UINT32X4(x) FfxUInt32(x)
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/// Broadcast a scalar value to a 1-dimensional signed integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_INT32(x) FfxInt32(x)
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/// Broadcast a scalar value to a 2-dimensional signed integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_INT32X2(x) FfxInt32(x)
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/// Broadcast a scalar value to a 3-dimensional signed integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_INT32X3(x) FfxInt32(x)
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/// Broadcast a scalar value to a 4-dimensional signed integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_INT32X4(x) FfxInt32(x)
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/// Broadcast a scalar value to a 1-dimensional half-precision floating point vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_FLOAT16(a) FFX_MIN16_F(a)
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/// Broadcast a scalar value to a 2-dimensional half-precision floating point vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_FLOAT16X2(a) FFX_MIN16_F(a)
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/// Broadcast a scalar value to a 3-dimensional half-precision floating point vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_FLOAT16X3(a) FFX_MIN16_F(a)
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/// Broadcast a scalar value to a 4-dimensional half-precision floating point vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_FLOAT16X4(a) FFX_MIN16_F(a)
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/// Broadcast a scalar value to a 1-dimensional half-precision unsigned integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_UINT16(a) FFX_MIN16_U(a)
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/// Broadcast a scalar value to a 2-dimensional half-precision unsigned integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_UINT16X2(a) FFX_MIN16_U(a)
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/// Broadcast a scalar value to a 3-dimensional half-precision unsigned integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_UINT16X3(a) FFX_MIN16_U(a)
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/// Broadcast a scalar value to a 4-dimensional half-precision unsigned integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_UINT16X4(a) FFX_MIN16_U(a)
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/// Broadcast a scalar value to a 1-dimensional half-precision signed integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_INT16(a) FFX_MIN16_I(a)
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/// Broadcast a scalar value to a 2-dimensional half-precision signed integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_INT16X2(a) FFX_MIN16_I(a)
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/// Broadcast a scalar value to a 3-dimensional half-precision signed integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_INT16X3(a) FFX_MIN16_I(a)
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/// Broadcast a scalar value to a 4-dimensional half-precision signed integer vector.
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///
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/// @ingroup GPU
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#define FFX_BROADCAST_MIN_INT16X4(a) FFX_MIN16_I(a)
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/// Pack 2x32-bit floating point values in a single 32bit value.
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///
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/// This function first converts each component of <c><i>value</i></c> into their nearest 16-bit floating
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/// point representation, and then stores the X and Y components in the lower and upper 16 bits of the
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/// 32bit unsigned integer respectively.
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///
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/// @param [in] value A 2-dimensional floating point value to convert and pack.
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///
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/// @returns
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/// A packed 32bit value containing 2 16bit floating point values.
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///
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/// @ingroup HLSL
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FfxUInt32 packHalf2x16(FfxFloat32x2 value)
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{
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return f32tof16(value.x) | (f32tof16(value.y) << 16);
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}
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/// Broadcast a scalar value to a 2-dimensional floating point vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 2-dimensional floating point vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxFloat32x2 ffxBroadcast2(FfxFloat32 value)
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{
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return FfxFloat32x2(value, value);
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}
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/// Broadcast a scalar value to a 3-dimensional floating point vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 3-dimensional floating point vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxFloat32x3 ffxBroadcast3(FfxFloat32 value)
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{
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return FfxFloat32x3(value, value, value);
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}
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/// Broadcast a scalar value to a 4-dimensional floating point vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 4-dimensional floating point vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxFloat32x4 ffxBroadcast4(FfxFloat32 value)
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{
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return FfxFloat32x4(value, value, value, value);
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}
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/// Broadcast a scalar value to a 2-dimensional signed integer vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 2-dimensional signed integer vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxInt32x2 ffxBroadcast2(FfxInt32 value)
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{
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return FfxInt32x2(value, value);
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}
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/// Broadcast a scalar value to a 3-dimensional signed integer vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 3-dimensional signed integer vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxUInt32x3 ffxBroadcast3(FfxInt32 value)
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{
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return FfxUInt32x3(value, value, value);
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}
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/// Broadcast a scalar value to a 4-dimensional signed integer vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 4-dimensional signed integer vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxInt32x4 ffxBroadcast4(FfxInt32 value)
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{
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return FfxInt32x4(value, value, value, value);
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}
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/// Broadcast a scalar value to a 2-dimensional unsigned integer vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 2-dimensional unsigned integer vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxUInt32x2 ffxBroadcast2(FfxUInt32 value)
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{
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return FfxUInt32x2(value, value);
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}
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/// Broadcast a scalar value to a 3-dimensional unsigned integer vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 3-dimensional unsigned integer vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxUInt32x3 ffxBroadcast3(FfxUInt32 value)
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{
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return FfxUInt32x3(value, value, value);
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}
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/// Broadcast a scalar value to a 4-dimensional unsigned integer vector.
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///
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/// @param [in] value The value to to broadcast.
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///
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/// @returns
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/// A 4-dimensional unsigned integer vector with <c><i>value</i></c> in each component.
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///
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/// @ingroup HLSL
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FfxUInt32x4 ffxBroadcast4(FfxUInt32 value)
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{
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return FfxUInt32x4(value, value, value, value);
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}
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FfxUInt32 bitfieldExtract(FfxUInt32 src, FfxUInt32 off, FfxUInt32 bits)
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{
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FfxUInt32 mask = (1u << bits) - 1;
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return (src >> off) & mask;
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}
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FfxUInt32 bitfieldInsert(FfxUInt32 src, FfxUInt32 ins, FfxUInt32 mask)
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{
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return (ins & mask) | (src & (~mask));
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}
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FfxUInt32 bitfieldInsertMask(FfxUInt32 src, FfxUInt32 ins, FfxUInt32 bits)
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{
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FfxUInt32 mask = (1u << bits) - 1;
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return (ins & mask) | (src & (~mask));
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}
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/// Interprets the bit pattern of x as an unsigned integer.
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///
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/// @param [in] value The input value.
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///
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/// @returns
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/// The input interpreted as an unsigned integer.
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///
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/// @ingroup HLSL
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FfxUInt32 ffxAsUInt32(FfxFloat32 x)
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{
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return asuint(x);
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}
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/// Interprets the bit pattern of x as an unsigned integer.
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///
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||
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/// @param [in] value The input value.
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||
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///
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||
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/// @returns
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/// The input interpreted as an unsigned integer.
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///
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/// @ingroup HLSL
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FfxUInt32x2 ffxAsUInt32(FfxFloat32x2 x)
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{
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return asuint(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Interprets the bit pattern of x as an unsigned integer.
|
||
|
|
///
|
||
|
|
/// @param [in] value The input value.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The input interpreted as an unsigned integer.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32x3 ffxAsUInt32(FfxFloat32x3 x)
|
||
|
|
{
|
||
|
|
return asuint(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Interprets the bit pattern of x as an unsigned integer.
|
||
|
|
///
|
||
|
|
/// @param [in] value The input value.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The input interpreted as an unsigned integer.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32x4 ffxAsUInt32(FfxFloat32x4 x)
|
||
|
|
{
|
||
|
|
return asuint(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Interprets the bit pattern of x as a floating-point number.
|
||
|
|
///
|
||
|
|
/// @param [in] value The input value.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The input interpreted as a floating-point number.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32 ffxAsFloat(FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return asfloat(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Interprets the bit pattern of x as a floating-point number.
|
||
|
|
///
|
||
|
|
/// @param [in] value The input value.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The input interpreted as a floating-point number.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x2 ffxAsFloat(FfxUInt32x2 x)
|
||
|
|
{
|
||
|
|
return asfloat(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Interprets the bit pattern of x as a floating-point number.
|
||
|
|
///
|
||
|
|
/// @param [in] value The input value.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The input interpreted as a floating-point number.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x3 ffxAsFloat(FfxUInt32x3 x)
|
||
|
|
{
|
||
|
|
return asfloat(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Interprets the bit pattern of x as a floating-point number.
|
||
|
|
///
|
||
|
|
/// @param [in] value The input value.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The input interpreted as a floating-point number.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x4 ffxAsFloat(FfxUInt32x4 x)
|
||
|
|
{
|
||
|
|
return asfloat(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the linear interopation between two values.
|
||
|
|
///
|
||
|
|
/// Implemented by calling the HLSL <c><i>mix</i></c> instrinsic function. Implements the
|
||
|
|
/// following math:
|
||
|
|
///
|
||
|
|
/// (1 - t) * x + t * y
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to lerp between.
|
||
|
|
/// @param [in] y The second value to lerp between.
|
||
|
|
/// @param [in] t The value to determine how much of <c><i>x</i></c> and how much of <c><i>y</i></c>.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// A linearly interpolated value between <c><i>x</i></c> and <c><i>y</i></c> according to <c><i>t</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32 ffxLerp(FfxFloat32 x, FfxFloat32 y, FfxFloat32 t)
|
||
|
|
{
|
||
|
|
return lerp(x, y, t);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the linear interopation between two values.
|
||
|
|
///
|
||
|
|
/// Implemented by calling the HLSL <c><i>mix</i></c> instrinsic function. Implements the
|
||
|
|
/// following math:
|
||
|
|
///
|
||
|
|
/// (1 - t) * x + t * y
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to lerp between.
|
||
|
|
/// @param [in] y The second value to lerp between.
|
||
|
|
/// @param [in] t The value to determine how much of <c><i>x</i></c> and how much of <c><i>y</i></c>.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// A linearly interpolated value between <c><i>x</i></c> and <c><i>y</i></c> according to <c><i>t</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x2 ffxLerp(FfxFloat32x2 x, FfxFloat32x2 y, FfxFloat32 t)
|
||
|
|
{
|
||
|
|
return lerp(x, y, t);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the linear interopation between two values.
|
||
|
|
///
|
||
|
|
/// Implemented by calling the HLSL <c><i>mix</i></c> instrinsic function. Implements the
|
||
|
|
/// following math:
|
||
|
|
///
|
||
|
|
/// (1 - t) * x + t * y
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to lerp between.
|
||
|
|
/// @param [in] y The second value to lerp between.
|
||
|
|
/// @param [in] t The value to determine how much of <c><i>x</i></c> and how much of <c><i>y</i></c>.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// A linearly interpolated value between <c><i>x</i></c> and <c><i>y</i></c> according to <c><i>t</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x2 ffxLerp(FfxFloat32x2 x, FfxFloat32x2 y, FfxFloat32x2 t)
|
||
|
|
{
|
||
|
|
return lerp(x, y, t);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the linear interopation between two values.
|
||
|
|
///
|
||
|
|
/// Implemented by calling the HLSL <c><i>mix</i></c> instrinsic function. Implements the
|
||
|
|
/// following math:
|
||
|
|
///
|
||
|
|
/// (1 - t) * x + t * y
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to lerp between.
|
||
|
|
/// @param [in] y The second value to lerp between.
|
||
|
|
/// @param [in] t The value to determine how much of <c><i>x</i></c> and how much of <c><i>y</i></c>.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// A linearly interpolated value between <c><i>x</i></c> and <c><i>y</i></c> according to <c><i>t</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x3 ffxLerp(FfxFloat32x3 x, FfxFloat32x3 y, FfxFloat32 t)
|
||
|
|
{
|
||
|
|
return lerp(x, y, t);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the linear interopation between two values.
|
||
|
|
///
|
||
|
|
/// Implemented by calling the HLSL <c><i>mix</i></c> instrinsic function. Implements the
|
||
|
|
/// following math:
|
||
|
|
///
|
||
|
|
/// (1 - t) * x + t * y
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to lerp between.
|
||
|
|
/// @param [in] y The second value to lerp between.
|
||
|
|
/// @param [in] t The value to determine how much of <c><i>x</i></c> and how much of <c><i>y</i></c>.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// A linearly interpolated value between <c><i>x</i></c> and <c><i>y</i></c> according to <c><i>t</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x3 ffxLerp(FfxFloat32x3 x, FfxFloat32x3 y, FfxFloat32x3 t)
|
||
|
|
{
|
||
|
|
return lerp(x, y, t);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the linear interopation between two values.
|
||
|
|
///
|
||
|
|
/// Implemented by calling the HLSL <c><i>mix</i></c> instrinsic function. Implements the
|
||
|
|
/// following math:
|
||
|
|
///
|
||
|
|
/// (1 - t) * x + t * y
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to lerp between.
|
||
|
|
/// @param [in] y The second value to lerp between.
|
||
|
|
/// @param [in] t The value to determine how much of <c><i>x</i></c> and how much of <c><i>y</i></c>.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// A linearly interpolated value between <c><i>x</i></c> and <c><i>y</i></c> according to <c><i>t</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x4 ffxLerp(FfxFloat32x4 x, FfxFloat32x4 y, FfxFloat32 t)
|
||
|
|
{
|
||
|
|
return lerp(x, y, t);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the linear interopation between two values.
|
||
|
|
///
|
||
|
|
/// Implemented by calling the HLSL <c><i>mix</i></c> instrinsic function. Implements the
|
||
|
|
/// following math:
|
||
|
|
///
|
||
|
|
/// (1 - t) * x + t * y
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to lerp between.
|
||
|
|
/// @param [in] y The second value to lerp between.
|
||
|
|
/// @param [in] t The value to determine how much of <c><i>x</i></c> and how much of <c><i>y</i></c>.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// A linearly interpolated value between <c><i>x</i></c> and <c><i>y</i></c> according to <c><i>t</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x4 ffxLerp(FfxFloat32x4 x, FfxFloat32x4 y, FfxFloat32x4 t)
|
||
|
|
{
|
||
|
|
return lerp(x, y, t);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Clamp a value to a [0..1] range.
|
||
|
|
///
|
||
|
|
/// @param [in] x The value to clamp to [0..1] range.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The clamped version of <c><i>x</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32 ffxSaturate(FfxFloat32 x)
|
||
|
|
{
|
||
|
|
return saturate(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Clamp a value to a [0..1] range.
|
||
|
|
///
|
||
|
|
/// @param [in] x The value to clamp to [0..1] range.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The clamped version of <c><i>x</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x2 ffxSaturate(FfxFloat32x2 x)
|
||
|
|
{
|
||
|
|
return saturate(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Clamp a value to a [0..1] range.
|
||
|
|
///
|
||
|
|
/// @param [in] x The value to clamp to [0..1] range.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The clamped version of <c><i>x</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x3 ffxSaturate(FfxFloat32x3 x)
|
||
|
|
{
|
||
|
|
return saturate(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Clamp a value to a [0..1] range.
|
||
|
|
///
|
||
|
|
/// @param [in] x The value to clamp to [0..1] range.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The clamped version of <c><i>x</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x4 ffxSaturate(FfxFloat32x4 x)
|
||
|
|
{
|
||
|
|
return saturate(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the factional part of a decimal value.
|
||
|
|
///
|
||
|
|
/// This function calculates <c><i>x - floor(x)</i></c>. Where <c><i>floor</i></c> is the intrinsic HLSL function.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware. It is
|
||
|
|
/// worth further noting that this function is intentionally distinct from the HLSL <c><i>frac</i></c> intrinsic
|
||
|
|
/// function.
|
||
|
|
///
|
||
|
|
/// @param [in] x The value to compute the fractional part from.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The fractional part of <c><i>x</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32 ffxFract(FfxFloat32 x)
|
||
|
|
{
|
||
|
|
return x - floor(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the factional part of a decimal value.
|
||
|
|
///
|
||
|
|
/// This function calculates <c><i>x - floor(x)</i></c>. Where <c><i>floor</i></c> is the intrinsic HLSL function.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware. It is
|
||
|
|
/// worth further noting that this function is intentionally distinct from the HLSL <c><i>frac</i></c> intrinsic
|
||
|
|
/// function.
|
||
|
|
///
|
||
|
|
/// @param [in] x The value to compute the fractional part from.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The fractional part of <c><i>x</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x2 ffxFract(FfxFloat32x2 x)
|
||
|
|
{
|
||
|
|
return x - floor(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the factional part of a decimal value.
|
||
|
|
///
|
||
|
|
/// This function calculates <c><i>x - floor(x)</i></c>. Where <c><i>floor</i></c> is the intrinsic HLSL function.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware. It is
|
||
|
|
/// worth further noting that this function is intentionally distinct from the HLSL <c><i>frac</i></c> intrinsic
|
||
|
|
/// function.
|
||
|
|
///
|
||
|
|
/// @param [in] x The value to compute the fractional part from.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The fractional part of <c><i>x</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x3 ffxFract(FfxFloat32x3 x)
|
||
|
|
{
|
||
|
|
return x - floor(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the factional part of a decimal value.
|
||
|
|
///
|
||
|
|
/// This function calculates <c><i>x - floor(x)</i></c>. Where <c><i>floor</i></c> is the intrinsic HLSL function.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware. It is
|
||
|
|
/// worth further noting that this function is intentionally distinct from the HLSL <c><i>frac</i></c> intrinsic
|
||
|
|
/// function.
|
||
|
|
///
|
||
|
|
/// @param [in] x The value to compute the fractional part from.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The fractional part of <c><i>x</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x4 ffxFract(FfxFloat32x4 x)
|
||
|
|
{
|
||
|
|
return x - floor(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the maximum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the max calculation.
|
||
|
|
/// @param [in] y The second value to include in the max calcuation.
|
||
|
|
/// @param [in] z The third value to include in the max calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The maximum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32 ffxMax3(FfxFloat32 x, FfxFloat32 y, FfxFloat32 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the maximum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the max calculation.
|
||
|
|
/// @param [in] y The second value to include in the max calcuation.
|
||
|
|
/// @param [in] z The third value to include in the max calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The maximum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x2 ffxMax3(FfxFloat32x2 x, FfxFloat32x2 y, FfxFloat32x2 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the maximum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the max calculation.
|
||
|
|
/// @param [in] y The second value to include in the max calcuation.
|
||
|
|
/// @param [in] z The third value to include in the max calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The maximum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x3 ffxMax3(FfxFloat32x3 x, FfxFloat32x3 y, FfxFloat32x3 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the maximum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the max calculation.
|
||
|
|
/// @param [in] y The second value to include in the max calcuation.
|
||
|
|
/// @param [in] z The third value to include in the max calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The maximum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x4 ffxMax3(FfxFloat32x4 x, FfxFloat32x4 y, FfxFloat32x4 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the maximum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the max calculation.
|
||
|
|
/// @param [in] y The second value to include in the max calcuation.
|
||
|
|
/// @param [in] z The third value to include in the max calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The maximum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32 ffxMax3(FfxUInt32 x, FfxUInt32 y, FfxUInt32 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the maximum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the max calculation.
|
||
|
|
/// @param [in] y The second value to include in the max calcuation.
|
||
|
|
/// @param [in] z The third value to include in the max calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The maximum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32x2 ffxMax3(FfxUInt32x2 x, FfxUInt32x2 y, FfxUInt32x2 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the maximum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the max calculation.
|
||
|
|
/// @param [in] y The second value to include in the max calcuation.
|
||
|
|
/// @param [in] z The third value to include in the max calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The maximum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32x3 ffxMax3(FfxUInt32x3 x, FfxUInt32x3 y, FfxUInt32x3 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the maximum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MAX3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the max calculation.
|
||
|
|
/// @param [in] y The second value to include in the max calcuation.
|
||
|
|
/// @param [in] z The third value to include in the max calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The maximum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32x4 ffxMax3(FfxUInt32x4 x, FfxUInt32x4 y, FfxUInt32x4 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the median of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MED3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the median calculation.
|
||
|
|
/// @param [in] y The second value to include in the median calcuation.
|
||
|
|
/// @param [in] z The third value to include in the median calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The median value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32 ffxMed3(FfxFloat32 x, FfxFloat32 y, FfxFloat32 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the median of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MED3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the median calculation.
|
||
|
|
/// @param [in] y The second value to include in the median calcuation.
|
||
|
|
/// @param [in] z The third value to include in the median calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The median value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x2 ffxMed3(FfxFloat32x2 x, FfxFloat32x2 y, FfxFloat32x2 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the median of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MED3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the median calculation.
|
||
|
|
/// @param [in] y The second value to include in the median calcuation.
|
||
|
|
/// @param [in] z The third value to include in the median calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The median value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x3 ffxMed3(FfxFloat32x3 x, FfxFloat32x3 y, FfxFloat32x3 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the median of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MED3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the median calculation.
|
||
|
|
/// @param [in] y The second value to include in the median calcuation.
|
||
|
|
/// @param [in] z The third value to include in the median calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The median value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x4 ffxMed3(FfxFloat32x4 x, FfxFloat32x4 y, FfxFloat32x4 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the median of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MED3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the median calculation.
|
||
|
|
/// @param [in] y The second value to include in the median calcuation.
|
||
|
|
/// @param [in] z The third value to include in the median calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The median value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxInt32 ffxMed3(FfxInt32 x, FfxInt32 y, FfxInt32 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
// return min(max(min(y, z), x), max(y, z));
|
||
|
|
// return max(max(x, y), z) == x ? max(y, z) : (max(max(x, y), z) == y ? max(x, z) : max(x, y));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the median of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MED3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the median calculation.
|
||
|
|
/// @param [in] y The second value to include in the median calcuation.
|
||
|
|
/// @param [in] z The third value to include in the median calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The median value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxInt32x2 ffxMed3(FfxInt32x2 x, FfxInt32x2 y, FfxInt32x2 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
// return min(max(min(y, z), x), max(y, z));
|
||
|
|
// return max(max(x, y), z) == x ? max(y, z) : (max(max(x, y), z) == y ? max(x, z) : max(x, y));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the median of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MED3_F32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the median calculation.
|
||
|
|
/// @param [in] y The second value to include in the median calcuation.
|
||
|
|
/// @param [in] z The third value to include in the median calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The median value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxInt32x3 ffxMed3(FfxInt32x3 x, FfxInt32x3 y, FfxInt32x3 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the median of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MED3_I32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the median calculation.
|
||
|
|
/// @param [in] y The second value to include in the median calcuation.
|
||
|
|
/// @param [in] z The third value to include in the median calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The median value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxInt32x4 ffxMed3(FfxInt32x4 x, FfxInt32x4 y, FfxInt32x4 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the minimum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MIN3_I32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the min calculation.
|
||
|
|
/// @param [in] y The second value to include in the min calcuation.
|
||
|
|
/// @param [in] z The third value to include in the min calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The minimum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32 ffxMin3(FfxFloat32 x, FfxFloat32 y, FfxFloat32 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the minimum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MIN3_I32</i></c> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the min calculation.
|
||
|
|
/// @param [in] y The second value to include in the min calcuation.
|
||
|
|
/// @param [in] z The third value to include in the min calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The minimum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x2 ffxMin3(FfxFloat32x2 x, FfxFloat32x2 y, FfxFloat32x2 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the minimum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MIN3_I32</c></i> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the min calculation.
|
||
|
|
/// @param [in] y The second value to include in the min calcuation.
|
||
|
|
/// @param [in] z The third value to include in the min calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The minimum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x3 ffxMin3(FfxFloat32x3 x, FfxFloat32x3 y, FfxFloat32x3 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the minimum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MIN3_F32</c></i> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the min calculation.
|
||
|
|
/// @param [in] y The second value to include in the min calcuation.
|
||
|
|
/// @param [in] z The third value to include in the min calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The minimum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxFloat32x4 ffxMin3(FfxFloat32x4 x, FfxFloat32x4 y, FfxFloat32x4 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the minimum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MIN3_F32</c></i> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the min calculation.
|
||
|
|
/// @param [in] y The second value to include in the min calcuation.
|
||
|
|
/// @param [in] z The third value to include in the min calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The minimum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32 ffxMin3(FfxUInt32 x, FfxUInt32 y, FfxUInt32 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the minimum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MIN3_F32</c></i> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the min calculation.
|
||
|
|
/// @param [in] y The second value to include in the min calcuation.
|
||
|
|
/// @param [in] z The third value to include in the min calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The minimum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32x2 ffxMin3(FfxUInt32x2 x, FfxUInt32x2 y, FfxUInt32x2 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the minimum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MIN3_F32</c></i> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the min calculation.
|
||
|
|
/// @param [in] y The second value to include in the min calcuation.
|
||
|
|
/// @param [in] z The third value to include in the min calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The minimum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32x3 ffxMin3(FfxUInt32x3 x, FfxUInt32x3 y, FfxUInt32x3 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Compute the minimum of three values.
|
||
|
|
///
|
||
|
|
/// NOTE: This function should compile down to a single <c><i>V_MIN3_F32</c></i> operation on GCN/RDNA hardware.
|
||
|
|
///
|
||
|
|
/// @param [in] x The first value to include in the min calculation.
|
||
|
|
/// @param [in] y The second value to include in the min calcuation.
|
||
|
|
/// @param [in] z The third value to include in the min calcuation.
|
||
|
|
///
|
||
|
|
/// @returns
|
||
|
|
/// The minimum value of <c><i>x</i></c>, <c><i>y</i></c>, and <c><i>z</i></c>.
|
||
|
|
///
|
||
|
|
/// @ingroup HLSL
|
||
|
|
FfxUInt32x4 ffxMin3(FfxUInt32x4 x, FfxUInt32x4 y, FfxUInt32x4 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
FfxUInt32 AShrSU1(FfxUInt32 a, FfxUInt32 b)
|
||
|
|
{
|
||
|
|
return FfxUInt32(FfxInt32(a) >> FfxInt32(b));
|
||
|
|
}
|
||
|
|
|
||
|
|
//==============================================================================================================================
|
||
|
|
// HLSL HALF
|
||
|
|
//==============================================================================================================================
|
||
|
|
#if FFX_HALF
|
||
|
|
|
||
|
|
//==============================================================================================================================
|
||
|
|
// Need to use manual unpack to get optimal execution (don't use packed types in buffers directly).
|
||
|
|
// Unpack requires this pattern: https://gpuopen.com/first-steps-implementing-fp16/
|
||
|
|
FFX_MIN16_F2 ffxUint32ToFloat16x2(FfxUInt32 x)
|
||
|
|
{
|
||
|
|
FfxFloat32x2 t = f16tof32(FfxUInt32x2(x & 0xFFFF, x >> 16));
|
||
|
|
return FFX_MIN16_F2(t);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxUint32x2ToFloat16x4(FfxUInt32x2 x)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_F4(ffxUint32ToFloat16x2(x.x), ffxUint32ToFloat16x2(x.y));
|
||
|
|
}
|
||
|
|
FFX_MIN16_U2 ffxUint32ToUint16x2(FfxUInt32 x)
|
||
|
|
{
|
||
|
|
FfxUInt32x2 t = FfxUInt32x2(x & 0xFFFF, x >> 16);
|
||
|
|
return FFX_MIN16_U2(t);
|
||
|
|
}
|
||
|
|
FFX_MIN16_U4 ffxUint32x2ToUint16x4(FfxUInt32x2 x)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U4(ffxUint32ToUint16x2(x.x), ffxUint32ToUint16x2(x.y));
|
||
|
|
}
|
||
|
|
#define FFX_UINT32_TO_FLOAT16X2(x) ffxUint32ToFloat16x2(FfxUInt32(x))
|
||
|
|
#define FFX_UINT32X2_TO_FLOAT16X4(x) ffxUint32x2ToFloat16x4(FfxUInt32x2(x))
|
||
|
|
#define FFX_UINT32_TO_UINT16X2(x) ffxUint32ToUint16x2(FfxUInt32(x))
|
||
|
|
#define FFX_UINT32X2_TO_UINT16X4(x) ffxUint32x2ToUint16x4(FfxUInt32x2(x))
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FfxUInt32 FFX_MIN16_F2ToUint32(FFX_MIN16_F2 x)
|
||
|
|
{
|
||
|
|
return f32tof16(x.x) + (f32tof16(x.y) << 16);
|
||
|
|
}
|
||
|
|
FfxUInt32x2 FFX_MIN16_F4ToUint32x2(FFX_MIN16_F4 x)
|
||
|
|
{
|
||
|
|
return FfxUInt32x2(FFX_MIN16_F2ToUint32(x.xy), FFX_MIN16_F2ToUint32(x.zw));
|
||
|
|
}
|
||
|
|
FfxUInt32 FFX_MIN16_U2ToUint32(FFX_MIN16_U2 x)
|
||
|
|
{
|
||
|
|
return FfxUInt32(x.x) + (FfxUInt32(x.y) << 16);
|
||
|
|
}
|
||
|
|
FfxUInt32x2 FFX_MIN16_U4ToUint32x2(FFX_MIN16_U4 x)
|
||
|
|
{
|
||
|
|
return FfxUInt32x2(FFX_MIN16_U2ToUint32(x.xy), FFX_MIN16_U2ToUint32(x.zw));
|
||
|
|
}
|
||
|
|
#define FFX_FLOAT16X2_TO_UINT32(x) FFX_MIN16_F2ToUint32(FFX_MIN16_F2(x))
|
||
|
|
#define FFX_FLOAT16X4_TO_UINT32X2(x) FFX_MIN16_F4ToUint32x2(FFX_MIN16_F4(x))
|
||
|
|
#define FFX_UINT16X2_TO_UINT32(x) FFX_MIN16_U2ToUint32(FFX_MIN16_U2(x))
|
||
|
|
#define FFX_UINT16X4_TO_UINT32X2(x) FFX_MIN16_U4ToUint32x2(FFX_MIN16_U4(x))
|
||
|
|
|
||
|
|
#if defined(FFX_HLSL_6_2) && !defined(FFX_NO_16_BIT_CAST)
|
||
|
|
#define FFX_TO_UINT16(x) asuint16(x)
|
||
|
|
#define FFX_TO_UINT16X2(x) asuint16(x)
|
||
|
|
#define FFX_TO_UINT16X3(x) asuint16(x)
|
||
|
|
#define FFX_TO_UINT16X4(x) asuint16(x)
|
||
|
|
#else
|
||
|
|
#define FFX_TO_UINT16(a) FFX_MIN16_U(f32tof16(FfxFloat32(a)))
|
||
|
|
#define FFX_TO_UINT16X2(a) FFX_MIN16_U2(FFX_TO_UINT16((a).x), FFX_TO_UINT16((a).y))
|
||
|
|
#define FFX_TO_UINT16X3(a) FFX_MIN16_U3(FFX_TO_UINT16((a).x), FFX_TO_UINT16((a).y), FFX_TO_UINT16((a).z))
|
||
|
|
#define FFX_TO_UINT16X4(a) FFX_MIN16_U4(FFX_TO_UINT16((a).x), FFX_TO_UINT16((a).y), FFX_TO_UINT16((a).z), FFX_TO_UINT16((a).w))
|
||
|
|
#endif // #if defined(FFX_HLSL_6_2) && !defined(FFX_NO_16_BIT_CAST)
|
||
|
|
|
||
|
|
#if defined(FFX_HLSL_6_2) && !defined(FFX_NO_16_BIT_CAST)
|
||
|
|
#define FFX_TO_FLOAT16(x) asfloat16(x)
|
||
|
|
#define FFX_TO_FLOAT16X2(x) asfloat16(x)
|
||
|
|
#define FFX_TO_FLOAT16X3(x) asfloat16(x)
|
||
|
|
#define FFX_TO_FLOAT16X4(x) asfloat16(x)
|
||
|
|
#else
|
||
|
|
#define FFX_TO_FLOAT16(a) FFX_MIN16_F(f16tof32(FfxUInt32(a)))
|
||
|
|
#define FFX_TO_FLOAT16X2(a) FFX_MIN16_F2(FFX_TO_FLOAT16((a).x), FFX_TO_FLOAT16((a).y))
|
||
|
|
#define FFX_TO_FLOAT16X3(a) FFX_MIN16_F3(FFX_TO_FLOAT16((a).x), FFX_TO_FLOAT16((a).y), FFX_TO_FLOAT16((a).z))
|
||
|
|
#define FFX_TO_FLOAT16X4(a) FFX_MIN16_F4(FFX_TO_FLOAT16((a).x), FFX_TO_FLOAT16((a).y), FFX_TO_FLOAT16((a).z), FFX_TO_FLOAT16((a).w))
|
||
|
|
#endif // #if defined(FFX_HLSL_6_2) && !defined(FFX_NO_16_BIT_CAST)
|
||
|
|
|
||
|
|
//==============================================================================================================================
|
||
|
|
#define FFX_BROADCAST_FLOAT16(a) FFX_MIN16_F(a)
|
||
|
|
#define FFX_BROADCAST_FLOAT16X2(a) FFX_MIN16_F(a)
|
||
|
|
#define FFX_BROADCAST_FLOAT16X3(a) FFX_MIN16_F(a)
|
||
|
|
#define FFX_BROADCAST_FLOAT16X4(a) FFX_MIN16_F(a)
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
#define FFX_BROADCAST_INT16(a) FFX_MIN16_I(a)
|
||
|
|
#define FFX_BROADCAST_INT16X2(a) FFX_MIN16_I(a)
|
||
|
|
#define FFX_BROADCAST_INT16X3(a) FFX_MIN16_I(a)
|
||
|
|
#define FFX_BROADCAST_INT16X4(a) FFX_MIN16_I(a)
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
#define FFX_BROADCAST_UINT16(a) FFX_MIN16_U(a)
|
||
|
|
#define FFX_BROADCAST_UINT16X2(a) FFX_MIN16_U(a)
|
||
|
|
#define FFX_BROADCAST_UINT16X3(a) FFX_MIN16_U(a)
|
||
|
|
#define FFX_BROADCAST_UINT16X4(a) FFX_MIN16_U(a)
|
||
|
|
|
||
|
|
//==============================================================================================================================
|
||
|
|
FFX_MIN16_U ffxAbsHalf(FFX_MIN16_U a)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U(abs(FFX_MIN16_I(a)));
|
||
|
|
}
|
||
|
|
FFX_MIN16_U2 ffxAbsHalf(FFX_MIN16_U2 a)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U2(abs(FFX_MIN16_I2(a)));
|
||
|
|
}
|
||
|
|
FFX_MIN16_U3 ffxAbsHalf(FFX_MIN16_U3 a)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U3(abs(FFX_MIN16_I3(a)));
|
||
|
|
}
|
||
|
|
FFX_MIN16_U4 ffxAbsHalf(FFX_MIN16_U4 a)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U4(abs(FFX_MIN16_I4(a)));
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_F ffxClampHalf(FFX_MIN16_F x, FFX_MIN16_F n, FFX_MIN16_F m)
|
||
|
|
{
|
||
|
|
return max(n, min(x, m));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxClampHalf(FFX_MIN16_F2 x, FFX_MIN16_F2 n, FFX_MIN16_F2 m)
|
||
|
|
{
|
||
|
|
return max(n, min(x, m));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxClampHalf(FFX_MIN16_F3 x, FFX_MIN16_F3 n, FFX_MIN16_F3 m)
|
||
|
|
{
|
||
|
|
return max(n, min(x, m));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxClampHalf(FFX_MIN16_F4 x, FFX_MIN16_F4 n, FFX_MIN16_F4 m)
|
||
|
|
{
|
||
|
|
return max(n, min(x, m));
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
// V_FRACT_F16 (note DX frac() is different).
|
||
|
|
FFX_MIN16_F ffxFract(FFX_MIN16_F x)
|
||
|
|
{
|
||
|
|
return x - floor(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxFract(FFX_MIN16_F2 x)
|
||
|
|
{
|
||
|
|
return x - floor(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxFract(FFX_MIN16_F3 x)
|
||
|
|
{
|
||
|
|
return x - floor(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxFract(FFX_MIN16_F4 x)
|
||
|
|
{
|
||
|
|
return x - floor(x);
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_F ffxLerp(FFX_MIN16_F x, FFX_MIN16_F y, FFX_MIN16_F a)
|
||
|
|
{
|
||
|
|
return lerp(x, y, a);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxLerp(FFX_MIN16_F2 x, FFX_MIN16_F2 y, FFX_MIN16_F a)
|
||
|
|
{
|
||
|
|
return lerp(x, y, a);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxLerp(FFX_MIN16_F2 x, FFX_MIN16_F2 y, FFX_MIN16_F2 a)
|
||
|
|
{
|
||
|
|
return lerp(x, y, a);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxLerp(FFX_MIN16_F3 x, FFX_MIN16_F3 y, FFX_MIN16_F a)
|
||
|
|
{
|
||
|
|
return lerp(x, y, a);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxLerp(FFX_MIN16_F3 x, FFX_MIN16_F3 y, FFX_MIN16_F3 a)
|
||
|
|
{
|
||
|
|
return lerp(x, y, a);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxLerp(FFX_MIN16_F4 x, FFX_MIN16_F4 y, FFX_MIN16_F a)
|
||
|
|
{
|
||
|
|
return lerp(x, y, a);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxLerp(FFX_MIN16_F4 x, FFX_MIN16_F4 y, FFX_MIN16_F4 a)
|
||
|
|
{
|
||
|
|
return lerp(x, y, a);
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_F ffxMax3Half(FFX_MIN16_F x, FFX_MIN16_F y, FFX_MIN16_F z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxMax3Half(FFX_MIN16_F2 x, FFX_MIN16_F2 y, FFX_MIN16_F2 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxMax3Half(FFX_MIN16_F3 x, FFX_MIN16_F3 y, FFX_MIN16_F3 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxMax3Half(FFX_MIN16_F4 x, FFX_MIN16_F4 y, FFX_MIN16_F4 z)
|
||
|
|
{
|
||
|
|
return max(x, max(y, z));
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_F ffxMin3Half(FFX_MIN16_F x, FFX_MIN16_F y, FFX_MIN16_F z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxMin3Half(FFX_MIN16_F2 x, FFX_MIN16_F2 y, FFX_MIN16_F2 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxMin3Half(FFX_MIN16_F3 x, FFX_MIN16_F3 y, FFX_MIN16_F3 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxMin3Half(FFX_MIN16_F4 x, FFX_MIN16_F4 y, FFX_MIN16_F4 z)
|
||
|
|
{
|
||
|
|
return min(x, min(y, z));
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_F ffxMed3Half(FFX_MIN16_F x, FFX_MIN16_F y, FFX_MIN16_F z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxMed3Half(FFX_MIN16_F2 x, FFX_MIN16_F2 y, FFX_MIN16_F2 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxMed3Half(FFX_MIN16_F3 x, FFX_MIN16_F3 y, FFX_MIN16_F3 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxMed3Half(FFX_MIN16_F4 x, FFX_MIN16_F4 y, FFX_MIN16_F4 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_I ffxMed3Half(FFX_MIN16_I x, FFX_MIN16_I y, FFX_MIN16_I z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_I2 ffxMed3Half(FFX_MIN16_I2 x, FFX_MIN16_I2 y, FFX_MIN16_I2 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_I3 ffxMed3Half(FFX_MIN16_I3 x, FFX_MIN16_I3 y, FFX_MIN16_I3 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
FFX_MIN16_I4 ffxMed3Half(FFX_MIN16_I4 x, FFX_MIN16_I4 y, FFX_MIN16_I4 z)
|
||
|
|
{
|
||
|
|
return max(min(x, y), min(max(x, y), z));
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_F ffxReciprocalHalf(FFX_MIN16_F x)
|
||
|
|
{
|
||
|
|
return rcp(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxReciprocalHalf(FFX_MIN16_F2 x)
|
||
|
|
{
|
||
|
|
return rcp(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxReciprocalHalf(FFX_MIN16_F3 x)
|
||
|
|
{
|
||
|
|
return rcp(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxReciprocalHalf(FFX_MIN16_F4 x)
|
||
|
|
{
|
||
|
|
return rcp(x);
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_F ffxReciprocalSquareRootHalf(FFX_MIN16_F x)
|
||
|
|
{
|
||
|
|
return rsqrt(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxReciprocalSquareRootHalf(FFX_MIN16_F2 x)
|
||
|
|
{
|
||
|
|
return rsqrt(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxReciprocalSquareRootHalf(FFX_MIN16_F3 x)
|
||
|
|
{
|
||
|
|
return rsqrt(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxReciprocalSquareRootHalf(FFX_MIN16_F4 x)
|
||
|
|
{
|
||
|
|
return rsqrt(x);
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_F ffxSaturate(FFX_MIN16_F x)
|
||
|
|
{
|
||
|
|
return saturate(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F2 ffxSaturate(FFX_MIN16_F2 x)
|
||
|
|
{
|
||
|
|
return saturate(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F3 ffxSaturate(FFX_MIN16_F3 x)
|
||
|
|
{
|
||
|
|
return saturate(x);
|
||
|
|
}
|
||
|
|
FFX_MIN16_F4 ffxSaturate(FFX_MIN16_F4 x)
|
||
|
|
{
|
||
|
|
return saturate(x);
|
||
|
|
}
|
||
|
|
//------------------------------------------------------------------------------------------------------------------------------
|
||
|
|
FFX_MIN16_U ffxBitShiftRightHalf(FFX_MIN16_U a, FFX_MIN16_U b)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U(FFX_MIN16_I(a) >> FFX_MIN16_I(b));
|
||
|
|
}
|
||
|
|
FFX_MIN16_U2 ffxBitShiftRightHalf(FFX_MIN16_U2 a, FFX_MIN16_U2 b)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U2(FFX_MIN16_I2(a) >> FFX_MIN16_I2(b));
|
||
|
|
}
|
||
|
|
FFX_MIN16_U3 ffxBitShiftRightHalf(FFX_MIN16_U3 a, FFX_MIN16_U3 b)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U3(FFX_MIN16_I3(a) >> FFX_MIN16_I3(b));
|
||
|
|
}
|
||
|
|
FFX_MIN16_U4 ffxBitShiftRightHalf(FFX_MIN16_U4 a, FFX_MIN16_U4 b)
|
||
|
|
{
|
||
|
|
return FFX_MIN16_U4(FFX_MIN16_I4(a) >> FFX_MIN16_I4(b));
|
||
|
|
}
|
||
|
|
#endif // FFX_HALF
|
||
|
|
|
||
|
|
//==============================================================================================================================
|
||
|
|
// HLSL WAVE
|
||
|
|
//==============================================================================================================================
|
||
|
|
#if defined(FFX_WAVE)
|
||
|
|
// Where 'x' must be a compile time literal.
|
||
|
|
FfxFloat32 AWaveXorF1(FfxFloat32 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return WaveReadLaneAt(v, WaveGetLaneIndex() ^ x);
|
||
|
|
}
|
||
|
|
FfxFloat32x2 AWaveXorF2(FfxFloat32x2 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return WaveReadLaneAt(v, WaveGetLaneIndex() ^ x);
|
||
|
|
}
|
||
|
|
FfxFloat32x3 AWaveXorF3(FfxFloat32x3 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return WaveReadLaneAt(v, WaveGetLaneIndex() ^ x);
|
||
|
|
}
|
||
|
|
FfxFloat32x4 AWaveXorF4(FfxFloat32x4 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return WaveReadLaneAt(v, WaveGetLaneIndex() ^ x);
|
||
|
|
}
|
||
|
|
FfxUInt32 AWaveXorU1(FfxUInt32 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return WaveReadLaneAt(v, WaveGetLaneIndex() ^ x);
|
||
|
|
}
|
||
|
|
FfxUInt32x2 AWaveXorU1(FfxUInt32x2 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return WaveReadLaneAt(v, WaveGetLaneIndex() ^ x);
|
||
|
|
}
|
||
|
|
FfxUInt32x3 AWaveXorU1(FfxUInt32x3 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return WaveReadLaneAt(v, WaveGetLaneIndex() ^ x);
|
||
|
|
}
|
||
|
|
FfxUInt32x4 AWaveXorU1(FfxUInt32x4 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return WaveReadLaneAt(v, WaveGetLaneIndex() ^ x);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if FFX_HALF
|
||
|
|
FfxFloat16x2 ffxWaveXorFloat16x2(FfxFloat16x2 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return FFX_UINT32_TO_FLOAT16X2(WaveReadLaneAt(FFX_FLOAT16X2_TO_UINT32(v), WaveGetLaneIndex() ^ x));
|
||
|
|
}
|
||
|
|
FfxFloat16x4 ffxWaveXorFloat16x4(FfxFloat16x4 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return FFX_UINT32X2_TO_FLOAT16X4(WaveReadLaneAt(FFX_FLOAT16X4_TO_UINT32X2(v), WaveGetLaneIndex() ^ x));
|
||
|
|
}
|
||
|
|
FfxUInt16x2 ffxWaveXorUint16x2(FfxUInt16x2 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return FFX_UINT32_TO_UINT16X2(WaveReadLaneAt(FFX_UINT16X2_TO_UINT32(v), WaveGetLaneIndex() ^ x));
|
||
|
|
}
|
||
|
|
FfxUInt16x4 ffxWaveXorUint16x4(FfxUInt16x4 v, FfxUInt32 x)
|
||
|
|
{
|
||
|
|
return AW4_FFX_UINT32(WaveReadLaneAt(FFX_UINT32_AW4(v), WaveGetLaneIndex() ^ x));
|
||
|
|
}
|
||
|
|
#endif // FFX_HALF
|
||
|
|
#endif // #if defined(FFX_WAVE)
|