blender/intern/cycles/kernel/split/kernel_split_data.h

78 lines
2.4 KiB
C

/*
* Copyright 2011-2016 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __KERNEL_SPLIT_DATA_H__
#define __KERNEL_SPLIT_DATA_H__
#include "kernel/split/kernel_split_data_types.h"
#include "kernel/kernel_globals.h"
CCL_NAMESPACE_BEGIN
ccl_device_inline uint64_t split_data_buffer_size(KernelGlobals *kg, size_t num_elements)
{
(void)kg; /* Unused on CPU. */
uint64_t size = 0;
#define SPLIT_DATA_ENTRY(type, name, num) +align_up(num_elements *num * sizeof(type), 16)
size = size SPLIT_DATA_ENTRIES;
#undef SPLIT_DATA_ENTRY
uint64_t closure_size = sizeof(ShaderClosure) * (kernel_data.integrator.max_closures - 1);
#ifdef __BRANCHED_PATH__
size += align_up(num_elements * (sizeof(ShaderData) + closure_size), 16);
#endif
size += align_up(num_elements * (sizeof(ShaderData) + closure_size), 16);
return size;
}
ccl_device_inline void split_data_init(KernelGlobals *kg,
ccl_global SplitData *split_data,
size_t num_elements,
ccl_global void *data,
ccl_global char *ray_state)
{
(void)kg; /* Unused on CPU. */
ccl_global char *p = (ccl_global char *)data;
#define SPLIT_DATA_ENTRY(type, name, num) \
split_data->name = (type *)p; \
p += align_up(num_elements * num * sizeof(type), 16);
SPLIT_DATA_ENTRIES;
#undef SPLIT_DATA_ENTRY
uint64_t closure_size = sizeof(ShaderClosure) * (kernel_data.integrator.max_closures - 1);
#ifdef __BRANCHED_PATH__
split_data->_branched_state_sd = (ShaderData *)p;
p += align_up(num_elements * (sizeof(ShaderData) + closure_size), 16);
#endif
split_data->_sd = (ShaderData *)p;
p += align_up(num_elements * (sizeof(ShaderData) + closure_size), 16);
split_data->ray_state = ray_state;
}
CCL_NAMESPACE_END
#endif /* __KERNEL_SPLIT_DATA_H__ */