forked from bartvdbraak/blender
107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
/*
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* Copyright 2011-2021 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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#include "integrator/denoiser_device.h"
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#include "device/device.h"
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#include "device/device_denoise.h"
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#include "device/device_memory.h"
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#include "device/device_queue.h"
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#include "render/buffers.h"
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#include "util/util_logging.h"
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#include "util/util_progress.h"
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CCL_NAMESPACE_BEGIN
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DeviceDenoiser::DeviceDenoiser(Device *path_trace_device, const DenoiseParams ¶ms)
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: Denoiser(path_trace_device, params)
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{
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}
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DeviceDenoiser::~DeviceDenoiser()
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{
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/* Explicit implementation, to allow forward declaration of Device in the header. */
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}
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bool DeviceDenoiser::denoise_buffer(const BufferParams &buffer_params,
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RenderBuffers *render_buffers,
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const int num_samples,
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bool allow_inplace_modification)
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{
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Device *denoiser_device = get_denoiser_device();
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if (!denoiser_device) {
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return false;
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}
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DeviceDenoiseTask task;
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task.params = params_;
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task.num_samples = num_samples;
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task.buffer_params = buffer_params;
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task.allow_inplace_modification = allow_inplace_modification;
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RenderBuffers local_render_buffers(denoiser_device);
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bool local_buffer_used = false;
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if (denoiser_device == render_buffers->buffer.device) {
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/* The device can access an existing buffer pointer. */
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local_buffer_used = false;
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task.render_buffers = render_buffers;
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}
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else {
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VLOG(3) << "Creating temporary buffer on denoiser device.";
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DeviceQueue *queue = denoiser_device->get_denoise_queue();
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/* Create buffer which is available by the device used by denoiser. */
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/* TODO(sergey): Optimize data transfers. For example, only copy denoising related passes,
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* ignoring other light ad data passes. */
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local_buffer_used = true;
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render_buffers->copy_from_device();
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local_render_buffers.reset(buffer_params);
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/* NOTE: The local buffer is allocated for an exact size of the effective render size, while
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* the input render buffer is allocated for the lowest resolution divider possible. So it is
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* important to only copy actually needed part of the input buffer. */
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memcpy(local_render_buffers.buffer.data(),
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render_buffers->buffer.data(),
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sizeof(float) * local_render_buffers.buffer.size());
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queue->copy_to_device(local_render_buffers.buffer);
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task.render_buffers = &local_render_buffers;
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task.allow_inplace_modification = true;
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}
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const bool denoise_result = denoiser_device->denoise_buffer(task);
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if (local_buffer_used) {
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local_render_buffers.copy_from_device();
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render_buffers_host_copy_denoised(
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render_buffers, buffer_params, &local_render_buffers, local_render_buffers.params);
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render_buffers->copy_to_device();
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}
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return denoise_result;
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}
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CCL_NAMESPACE_END
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