0579eaae1f
The idea is to make include statements more explicit and obvious where the file is coming from, additionally reducing chance of wrong header being picked up. For example, it was not obvious whether bvh.h was refferring to builder or traversal, whenter node.h is a generic graph node or a shader node and cases like that. Surely this might look obvious for the active developers, but after some time of not touching the code it becomes less obvious where file is coming from. This was briefly mentioned in T50824 and seems @brecht is fine with such explicitness, but need to agree with all active developers before committing this. Please note that this patch is lacking changes related on GPU/OpenCL support. This will be solved if/when we all agree this is a good idea to move forward. Reviewers: brecht, lukasstockner97, maiself, nirved, dingto, juicyfruit, swerner Reviewed By: lukasstockner97, maiself, nirved, dingto Subscribers: brecht Differential Revision: https://developer.blender.org/D2586
133 lines
4.7 KiB
C++
133 lines
4.7 KiB
C++
/*
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* Copyright 2011-2016 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __DEVICE_SPLIT_KERNEL_H__
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#define __DEVICE_SPLIT_KERNEL_H__
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#include "device/device.h"
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#include "render/buffers.h"
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CCL_NAMESPACE_BEGIN
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/* When allocate global memory in chunks. We may not be able to
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* allocate exactly "CL_DEVICE_MAX_MEM_ALLOC_SIZE" bytes in chunks;
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* Since some bytes may be needed for aligning chunks of memory;
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* This is the amount of memory that we dedicate for that purpose.
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*/
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#define DATA_ALLOCATION_MEM_FACTOR 5000000 //5MB
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/* Types used for split kernel */
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class KernelDimensions {
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public:
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size_t global_size[2];
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size_t local_size[2];
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KernelDimensions(size_t global_size_[2], size_t local_size_[2])
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{
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memcpy(global_size, global_size_, sizeof(global_size));
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memcpy(local_size, local_size_, sizeof(local_size));
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}
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};
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class SplitKernelFunction {
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public:
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virtual ~SplitKernelFunction() {}
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/* enqueue the kernel, returns false if there is an error */
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virtual bool enqueue(const KernelDimensions& dim, device_memory& kg, device_memory& data) = 0;
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};
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class DeviceSplitKernel {
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private:
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Device *device;
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SplitKernelFunction *kernel_path_init;
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SplitKernelFunction *kernel_scene_intersect;
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SplitKernelFunction *kernel_lamp_emission;
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SplitKernelFunction *kernel_do_volume;
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SplitKernelFunction *kernel_queue_enqueue;
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SplitKernelFunction *kernel_indirect_background;
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SplitKernelFunction *kernel_shader_eval;
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SplitKernelFunction *kernel_holdout_emission_blurring_pathtermination_ao;
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SplitKernelFunction *kernel_subsurface_scatter;
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SplitKernelFunction *kernel_direct_lighting;
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SplitKernelFunction *kernel_shadow_blocked_ao;
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SplitKernelFunction *kernel_shadow_blocked_dl;
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SplitKernelFunction *kernel_next_iteration_setup;
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SplitKernelFunction *kernel_indirect_subsurface;
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SplitKernelFunction *kernel_buffer_update;
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/* Global memory variables [porting]; These memory is used for
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* co-operation between different kernels; Data written by one
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* kernel will be available to another kernel via this global
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* memory.
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*/
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device_memory split_data;
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device_vector<uchar> ray_state;
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device_memory queue_index; /* Array of size num_queues * sizeof(int) that tracks the size of each queue. */
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/* Flag to make sceneintersect and lampemission kernel use queues. */
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device_memory use_queues_flag;
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/* Approximate time it takes to complete one sample */
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double avg_time_per_sample;
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/* Work pool with respect to each work group. */
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device_memory work_pool_wgs;
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/* clos_max value for which the kernels have been loaded currently. */
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int current_max_closure;
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/* Marked True in constructor and marked false at the end of path_trace(). */
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bool first_tile;
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public:
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explicit DeviceSplitKernel(Device* device);
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virtual ~DeviceSplitKernel();
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bool load_kernels(const DeviceRequestedFeatures& requested_features);
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bool path_trace(DeviceTask *task,
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RenderTile& rtile,
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device_memory& kgbuffer,
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device_memory& kernel_data);
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virtual uint64_t state_buffer_size(device_memory& kg, device_memory& data, size_t num_threads) = 0;
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size_t max_elements_for_max_buffer_size(device_memory& kg, device_memory& data, uint64_t max_buffer_size);
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virtual bool enqueue_split_kernel_data_init(const KernelDimensions& dim,
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RenderTile& rtile,
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int num_global_elements,
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device_memory& kernel_globals,
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device_memory& kernel_data_,
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device_memory& split_data,
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device_memory& ray_state,
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device_memory& queue_index,
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device_memory& use_queues_flag,
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device_memory& work_pool_wgs) = 0;
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virtual SplitKernelFunction* get_split_kernel_function(string kernel_name, const DeviceRequestedFeatures&) = 0;
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virtual int2 split_kernel_local_size() = 0;
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virtual int2 split_kernel_global_size(device_memory& kg, device_memory& data, DeviceTask *task) = 0;
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};
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CCL_NAMESPACE_END
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#endif /* __DEVICE_SPLIT_KERNEL_H__ */
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