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/* SPDX-License-Identifier: Apache-2.0
* Copyright 2011-2022 Blender Foundation */
#pragma once
#ifdef __KERNEL_GPU__
# define __ATOMIC_PASS_WRITE__
#endif
CCL_NAMESPACE_BEGIN
ccl_device_inline void kernel_write_pass_float(ccl_global float *ccl_restrict buffer, float value)
{
#ifdef __ATOMIC_PASS_WRITE__
atomic_add_and_fetch_float(buffer, value);
#else
*buffer += value;
#endif
}
ccl_device_inline void kernel_write_pass_float3(ccl_global float *ccl_restrict buffer,
float3 value)
{
#ifdef __ATOMIC_PASS_WRITE__
ccl_global float *buf_x = buffer + 0;
ccl_global float *buf_y = buffer + 1;
ccl_global float *buf_z = buffer + 2;
atomic_add_and_fetch_float(buf_x, value.x);
atomic_add_and_fetch_float(buf_y, value.y);
atomic_add_and_fetch_float(buf_z, value.z);
#else
buffer[0] += value.x;
buffer[1] += value.y;
buffer[2] += value.z;
#endif
}
ccl_device_inline void kernel_write_pass_float4(ccl_global float *ccl_restrict buffer,
float4 value)
{
#ifdef __ATOMIC_PASS_WRITE__
ccl_global float *buf_x = buffer + 0;
ccl_global float *buf_y = buffer + 1;
ccl_global float *buf_z = buffer + 2;
ccl_global float *buf_w = buffer + 3;
atomic_add_and_fetch_float(buf_x, value.x);
atomic_add_and_fetch_float(buf_y, value.y);
atomic_add_and_fetch_float(buf_z, value.z);
atomic_add_and_fetch_float(buf_w, value.w);
#else
buffer[0] += value.x;
buffer[1] += value.y;
buffer[2] += value.z;
buffer[3] += value.w;
#endif
}
ccl_device_inline float kernel_read_pass_float(ccl_global float *ccl_restrict buffer)
{
return *buffer;
}
ccl_device_inline float3 kernel_read_pass_float3(ccl_global float *ccl_restrict buffer)
{
return make_float3(buffer[0], buffer[1], buffer[2]);
}
ccl_device_inline float4 kernel_read_pass_float4(ccl_global float *ccl_restrict buffer)
{
return make_float4(buffer[0], buffer[1], buffer[2], buffer[3]);
}
CCL_NAMESPACE_END
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