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/*
* Copyright 2011-2013 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.
*/
#ifdef WITH_OPTIX
# include "device/optix/queue.h"
# include "device/optix/device_impl.h"
# include "util/util_time.h"
# undef __KERNEL_CPU__
# define __KERNEL_OPTIX__
# include "kernel/device/optix/globals.h"
CCL_NAMESPACE_BEGIN
/* CUDADeviceQueue */
OptiXDeviceQueue::OptiXDeviceQueue(OptiXDevice *device) : CUDADeviceQueue(device)
{
}
void OptiXDeviceQueue::init_execution()
{
CUDADeviceQueue::init_execution();
}
static bool is_optix_specific_kernel(DeviceKernel kernel)
{
return (kernel == DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE ||
kernel == DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST ||
kernel == DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW ||
kernel == DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE ||
kernel == DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK);
}
bool OptiXDeviceQueue::enqueue(DeviceKernel kernel, const int work_size, void *args[])
{
if (!is_optix_specific_kernel(kernel)) {
return CUDADeviceQueue::enqueue(kernel, work_size, args);
}
if (cuda_device_->have_error()) {
return false;
}
debug_enqueue(kernel, work_size);
const CUDAContextScope scope(cuda_device_);
OptiXDevice *const optix_device = static_cast<OptiXDevice *>(cuda_device_);
const device_ptr sbt_data_ptr = optix_device->sbt_data.device_pointer;
const device_ptr launch_params_ptr = optix_device->launch_params.device_pointer;
cuda_device_assert(
cuda_device_,
cuMemcpyHtoDAsync(launch_params_ptr + offsetof(KernelParamsOptiX, path_index_array),
args[0], // &d_path_index
sizeof(device_ptr),
cuda_stream_));
if (kernel == DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE) {
cuda_device_assert(
cuda_device_,
cuMemcpyHtoDAsync(launch_params_ptr + offsetof(KernelParamsOptiX, render_buffer),
args[1], // &d_render_buffer
sizeof(device_ptr),
cuda_stream_));
}
cuda_device_assert(cuda_device_, cuStreamSynchronize(cuda_stream_));
OptixPipeline pipeline = nullptr;
OptixShaderBindingTable sbt_params = {};
switch (kernel) {
case DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE:
pipeline = optix_device->pipelines[PIP_SHADE_RAYTRACE];
sbt_params.raygenRecord = sbt_data_ptr + PG_RGEN_SHADE_SURFACE_RAYTRACE * sizeof(SbtRecord);
break;
case DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST:
pipeline = optix_device->pipelines[PIP_INTERSECT];
sbt_params.raygenRecord = sbt_data_ptr + PG_RGEN_INTERSECT_CLOSEST * sizeof(SbtRecord);
break;
case DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW:
pipeline = optix_device->pipelines[PIP_INTERSECT];
sbt_params.raygenRecord = sbt_data_ptr + PG_RGEN_INTERSECT_SHADOW * sizeof(SbtRecord);
break;
case DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE:
pipeline = optix_device->pipelines[PIP_INTERSECT];
sbt_params.raygenRecord = sbt_data_ptr + PG_RGEN_INTERSECT_SUBSURFACE * sizeof(SbtRecord);
break;
case DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK:
pipeline = optix_device->pipelines[PIP_INTERSECT];
sbt_params.raygenRecord = sbt_data_ptr + PG_RGEN_INTERSECT_VOLUME_STACK * sizeof(SbtRecord);
break;
default:
LOG(ERROR) << "Invalid kernel " << device_kernel_as_string(kernel)
<< " is attempted to be enqueued.";
return false;
}
sbt_params.missRecordBase = sbt_data_ptr + MISS_PROGRAM_GROUP_OFFSET * sizeof(SbtRecord);
sbt_params.missRecordStrideInBytes = sizeof(SbtRecord);
sbt_params.missRecordCount = NUM_MIS_PROGRAM_GROUPS;
sbt_params.hitgroupRecordBase = sbt_data_ptr + HIT_PROGAM_GROUP_OFFSET * sizeof(SbtRecord);
sbt_params.hitgroupRecordStrideInBytes = sizeof(SbtRecord);
sbt_params.hitgroupRecordCount = NUM_HIT_PROGRAM_GROUPS;
sbt_params.callablesRecordBase = sbt_data_ptr + CALLABLE_PROGRAM_GROUPS_BASE * sizeof(SbtRecord);
sbt_params.callablesRecordCount = NUM_CALLABLE_PROGRAM_GROUPS;
sbt_params.callablesRecordStrideInBytes = sizeof(SbtRecord);
/* Launch the ray generation program. */
optix_device_assert(optix_device,
optixLaunch(pipeline,
cuda_stream_,
launch_params_ptr,
optix_device->launch_params.data_elements,
&sbt_params,
work_size,
1,
1));
return !(optix_device->have_error());
}
CCL_NAMESPACE_END
#endif /* WITH_OPTIX */
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