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

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intern/cycles/integrator/shader_eval.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 "device/device_memory.h"

				#include "kernel/kernel_types.h"

				#include "util/util_function.h"

				CCL_NAMESPACE_BEGIN

				class Device;
				class Progress;

				enum ShaderEvalType {
				SHADER_EVAL_DISPLACE,
				SHADER_EVAL_BACKGROUND,
				};

				/* ShaderEval class performs shader evaluation for background light and displacement. */
				class ShaderEval {
				public:
				ShaderEval(Device *device, Progress &progress);

				/* Evaluate shader at points specified by KernelShaderEvalInput and write out
				* RGBA colors to output. */
				bool eval(const ShaderEvalType type,
				const int max_num_points,
				const function<int(device_vector<KernelShaderEvalInput> &)> &fill_input,
				const function<void(device_vector<float4> &)> &read_output);

				protected:
				bool eval_cpu(Device *device,
				const ShaderEvalType type,
				device_vector<KernelShaderEvalInput> &input,
				device_vector<float4> &output);
				bool eval_gpu(Device *device,
				const ShaderEvalType type,
				device_vector<KernelShaderEvalInput> &input,
				device_vector<float4> &output);

				Device *device_;
				Progress &progress_;
				};

				CCL_NAMESPACE_END