blender/intern/cycles/kernel/kernels/opencl/kernel_split_function.h
Mai Lavelle ec8ae4d5e9 Cycles: Pack kernel textures into buffers for OpenCL
Image textures were being packed into a single buffer for OpenCL, which
limited the amount of memory available for images to the size of one
buffer (usually 4gb on AMD hardware). By packing textures into multiple
buffers that limit is removed, while simultaneously reducing the number
of buffers that need to be passed to each kernel.

Benchmarks were within 2%.

Fixes T51554.

Differential Revision: https://developer.blender.org/D2745
2017-08-08 07:12:04 -04:00

68 lines
1.8 KiB
C

/*
* Copyright 2011-2017 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.
*/
#define KERNEL_NAME_JOIN(a, b) a ## _ ## b
#define KERNEL_NAME_EVAL(a, b) KERNEL_NAME_JOIN(a, b)
__kernel void KERNEL_NAME_EVAL(kernel_ocl_path_trace, KERNEL_NAME)(
ccl_global char *kg_global,
ccl_constant KernelData *data,
ccl_global void *split_data_buffer,
ccl_global char *ray_state,
ccl_global uint *rng_state,
KERNEL_BUFFER_PARAMS,
ccl_global int *queue_index,
ccl_global char *use_queues_flag,
ccl_global unsigned int *work_pools,
ccl_global float *buffer
)
{
#ifdef LOCALS_TYPE
ccl_local LOCALS_TYPE locals;
#endif
KernelGlobals *kg = (KernelGlobals*)kg_global;
if(ccl_local_id(0) + ccl_local_id(1) == 0) {
kg->data = data;
kernel_split_params.rng_state = rng_state;
kernel_split_params.queue_index = queue_index;
kernel_split_params.use_queues_flag = use_queues_flag;
kernel_split_params.work_pools = work_pools;
kernel_split_params.buffer = buffer;
split_data_init(kg, &kernel_split_state, ccl_global_size(0)*ccl_global_size(1), split_data_buffer, ray_state);
}
kernel_set_buffer_pointers(kg, KERNEL_BUFFER_ARGS);
KERNEL_NAME_EVAL(kernel, KERNEL_NAME)(
kg
#ifdef LOCALS_TYPE
, &locals
#endif
);
}
#undef KERNEL_NAME_JOIN
#undef KERNEL_NAME_EVAL