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Diffstat (limited to 'intern/cycles/device/device_denoising.h')
| -rw-r--r-- | intern/cycles/device/device_denoising.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/intern/cycles/device/device_denoising.h b/intern/cycles/device/device_denoising.h new file mode 100644 index 00000000000..def7b72f67d --- /dev/null +++ b/intern/cycles/device/device_denoising.h @@ -0,0 +1,148 @@ +/* + * Copyright 2011-2017 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. + */ + +#ifndef __DEVICE_DENOISING_H__ +#define __DEVICE_DENOISING_H__ + +#include "device/device.h" + +#include "render/buffers.h" + +#include "kernel/filter/filter_defines.h" + +CCL_NAMESPACE_BEGIN + +class DenoisingTask { +public: + /* Parameters of the denoising algorithm. */ + int radius; + float nlm_k_2; + float pca_threshold; + + /* Pointer and parameters of the RenderBuffers. */ + struct RenderBuffers { + int denoising_data_offset; + int denoising_clean_offset; + int pass_stride; + int offset; + int stride; + device_ptr ptr; + int samples; + } render_buffer; + + TilesInfo *tiles; + device_vector<int> tiles_mem; + void tiles_from_rendertiles(RenderTile *rtiles); + + int4 rect; + int4 filter_area; + + struct DeviceFunctions { + function<bool(device_ptr image_ptr, /* Contains the values that are smoothed. */ + device_ptr guide_ptr, /* Contains the values that are used to calculate weights. */ + device_ptr variance_ptr, /* Contains the variance of the guide image. */ + device_ptr out_ptr /* The filtered output is written into this image. */ + )> non_local_means; + function<bool(device_ptr color_ptr, + device_ptr color_variance_ptr, + device_ptr output_ptr + )> reconstruct; + function<bool()> construct_transform; + + function<bool(device_ptr a_ptr, + device_ptr b_ptr, + device_ptr mean_ptr, + device_ptr variance_ptr, + int r, + int4 rect + )> combine_halves; + function<bool(device_ptr a_ptr, + device_ptr b_ptr, + device_ptr sample_variance_ptr, + device_ptr sv_variance_ptr, + device_ptr buffer_variance_ptr + )> divide_shadow; + function<bool(int mean_offset, + int variance_offset, + device_ptr mean_ptr, + device_ptr variance_ptr + )> get_feature; + function<bool(device_ptr image_ptr, + device_ptr variance_ptr, + device_ptr depth_ptr, + device_ptr output_ptr + )> detect_outliers; + function<bool(device_ptr*)> set_tiles; + } functions; + + /* Stores state of the current Reconstruction operation, + * which is accessed by the device in order to perform the operation. */ + struct ReconstructionState { + device_ptr temporary_1_ptr; /* There two images are used as temporary storage. */ + device_ptr temporary_2_ptr; + + int4 filter_rect; + int4 buffer_params; + + int source_w; + int source_h; + } reconstruction_state; + + /* Stores state of the current NLM operation, + * which is accessed by the device in order to perform the operation. */ + struct NLMState { + device_ptr temporary_1_ptr; /* There three images are used as temporary storage. */ + device_ptr temporary_2_ptr; + device_ptr temporary_3_ptr; + + int r; /* Search radius of the filter. */ + int f; /* Patch size of the filter. */ + float a; /* Variance compensation factor in the MSE estimation. */ + float k_2; /* Squared value of the k parameter of the filter. */ + + void set_parameters(int r_, int f_, float a_, float k_2_) { r = r_; f = f_; a = a_, k_2 = k_2_; } + } nlm_state; + + struct Storage { + device_only_memory<float> transform; + device_only_memory<int> rank; + device_only_memory<float> XtWX; + device_only_memory<float3> XtWY; + int w; + int h; + } storage; + + DenoisingTask(Device *device) : device(device) {} + + void init_from_devicetask(const DeviceTask &task); + + bool run_denoising(); + + struct DenoiseBuffers { + int pass_stride; + int passes; + int w; + int h; + device_only_memory<float> mem; + } buffer; + +protected: + Device *device; +}; + +CCL_NAMESPACE_END + +#endif /* __DEVICE_DENOISING_H__ */ |