Differential D12367 Diff 41308 intern/cycles/integrator/path_trace_work_cpu.h

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intern/cycles/integrator/path_trace_work_cpu.h

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				/*
				* Copyright 2011-2021 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.
				*/

				#pragma once

				#include "kernel/integrator/integrator_state.h"

				#include "device/cpu/kernel_thread_globals.h"
				#include "device/device_queue.h"

				#include "integrator/path_trace_work.h"

				#include "util/util_vector.h"

				CCL_NAMESPACE_BEGIN

				struct KernelWorkTile;
				struct KernelGlobals;

				class CPUKernels;

				/* Implementation of PathTraceWork which schedules work on to queues pixel-by-pixel,
				* for CPU devices.
				*
				* NOTE: For the CPU rendering there are assumptions about TBB arena size and number of concurrent
				* queues on the render device which makes this work be only usable on CPU. */
				class PathTraceWorkCPU : public PathTraceWork {
				public:
				PathTraceWorkCPU(Device *device,
				Film *film,
				DeviceScene *device_scene,
				bool *cancel_requested_flag);

				virtual void init_execution() override;

				virtual void render_samples(int start_sample, int samples_num) override;

				virtual void copy_to_gpu_display(GPUDisplay *gpu_display,
				PassMode pass_mode,
				int num_samples) override;

				virtual bool copy_render_buffers_from_device() override;
				virtual bool copy_render_buffers_to_device() override;
				virtual bool zero_render_buffers() override;

				virtual int adaptive_sampling_converge_filter_count_active(float threshold, bool reset) override;
				virtual void cryptomatte_postproces() override;

				protected:
				/* Core path tracing routine. Renders given work time on the given queue. */
				void render_samples_full_pipeline(KernelGlobals *kernel_globals,
				const KernelWorkTile &work_tile,
				const int samples_num);

				/* CPU kernels. */
				const CPUKernels &kernels_;

				/* Copy of kernel globals which is suitable for concurrent access from multiple threads.
				*
				* More specifically, the `kernel_globals_` is local to each threads and nobody else is
				* accessing it, but some "localization" is required to decouple from kernel globals stored
				* on the device level. */
				vector<CPUKernelThreadGlobals> kernel_thread_globals_;
				};

				CCL_NAMESPACE_END