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/* SPDX-License-Identifier: Apache-2.0
* Copyright 2011-2022 Blender Foundation */
#ifndef __UTIL_TYPES_FLOAT3_H__
#define __UTIL_TYPES_FLOAT3_H__
#ifndef __UTIL_TYPES_H__
# error "Do not include this file directly, include util/types.h instead."
#endif
CCL_NAMESPACE_BEGIN
#ifndef __KERNEL_GPU__
struct ccl_try_align(16) float3
{
# ifdef __KERNEL_SSE__
union {
__m128 m128;
struct {
float x, y, z, w;
};
};
__forceinline float3();
__forceinline float3(const float3 &a);
__forceinline explicit float3(const __m128 &a);
__forceinline operator const __m128 &() const;
__forceinline operator __m128 &();
__forceinline float3 &operator=(const float3 &a);
# else /* __KERNEL_SSE__ */
float x, y, z, w;
# endif /* __KERNEL_SSE__ */
__forceinline float operator[](int i) const;
__forceinline float &operator[](int i);
};
ccl_device_inline float3 make_float3(float f);
ccl_device_inline float3 make_float3(float x, float y, float z);
ccl_device_inline void print_float3(const char *label, const float3 &a);
#endif /* __KERNEL_GPU__ */
/* Smaller float3 for storage. For math operations this must be converted to float3, so that on the
* CPU SIMD instructions can be used. */
#if defined(__KERNEL_METAL__)
/* Metal has native packed_float3. */
#elif defined(__KERNEL_CUDA__)
/* CUDA float3 is already packed. */
typedef float3 packed_float3;
#else
/* HIP float3 is not packed (https://github.com/ROCm-Developer-Tools/HIP/issues/706). */
struct packed_float3 {
ccl_device_inline_method packed_float3(){};
ccl_device_inline_method packed_float3(const float3 &a) : x(a.x), y(a.y), z(a.z)
{
}
ccl_device_inline_method operator float3() const
{
return make_float3(x, y, z);
}
ccl_device_inline_method packed_float3 &operator=(const float3 &a)
{
x = a.x;
y = a.y;
z = a.z;
return *this;
}
float x, y, z;
};
#endif
static_assert(sizeof(packed_float3) == 12, "packed_float3 expected to be exactly 12 bytes");
CCL_NAMESPACE_END
#endif /* __UTIL_TYPES_FLOAT3_H__ */
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