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/*
* 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.
*/
/* OpenCL kernel entry points */
#include "kernel/kernel_compat_opencl.h"
#include "kernel/filter/filter_kernel.h"
/* kernels */
__kernel void kernel_ocl_filter_divide_shadow(int sample,
CCL_FILTER_TILE_INFO,
ccl_global float *unfilteredA,
ccl_global float *unfilteredB,
ccl_global float *sampleVariance,
ccl_global float *sampleVarianceV,
ccl_global float *bufferVariance,
int4 prefilter_rect,
int buffer_pass_stride,
int buffer_denoising_offset)
{
int x = prefilter_rect.x + get_global_id(0);
int y = prefilter_rect.y + get_global_id(1);
if(x < prefilter_rect.z && y < prefilter_rect.w) {
kernel_filter_divide_shadow(sample,
CCL_FILTER_TILE_INFO_ARG,
x, y,
unfilteredA,
unfilteredB,
sampleVariance,
sampleVarianceV,
bufferVariance,
prefilter_rect,
buffer_pass_stride,
buffer_denoising_offset);
}
}
__kernel void kernel_ocl_filter_get_feature(int sample,
CCL_FILTER_TILE_INFO,
int m_offset,
int v_offset,
ccl_global float *mean,
ccl_global float *variance,
int4 prefilter_rect,
int buffer_pass_stride,
int buffer_denoising_offset)
{
int x = prefilter_rect.x + get_global_id(0);
int y = prefilter_rect.y + get_global_id(1);
if(x < prefilter_rect.z && y < prefilter_rect.w) {
kernel_filter_get_feature(sample,
CCL_FILTER_TILE_INFO_ARG,
m_offset, v_offset,
x, y,
mean, variance,
prefilter_rect,
buffer_pass_stride,
buffer_denoising_offset);
}
}
__kernel void kernel_ocl_filter_detect_outliers(ccl_global float *image,
ccl_global float *variance,
ccl_global float *depth,
ccl_global float *output,
int4 prefilter_rect,
int pass_stride)
{
int x = prefilter_rect.x + get_global_id(0);
int y = prefilter_rect.y + get_global_id(1);
if(x < prefilter_rect.z && y < prefilter_rect.w) {
kernel_filter_detect_outliers(x, y, image, variance, depth, output, prefilter_rect, pass_stride);
}
}
__kernel void kernel_ocl_filter_combine_halves(ccl_global float *mean,
ccl_global float *variance,
ccl_global float *a,
ccl_global float *b,
int4 prefilter_rect,
int r)
{
int x = prefilter_rect.x + get_global_id(0);
int y = prefilter_rect.y + get_global_id(1);
if(x < prefilter_rect.z && y < prefilter_rect.w) {
kernel_filter_combine_halves(x, y, mean, variance, a, b, prefilter_rect, r);
}
}
__kernel void kernel_ocl_filter_construct_transform(const ccl_global float *ccl_restrict buffer,
ccl_global float *transform,
ccl_global int *rank,
int4 filter_area,
int4 rect,
int pass_stride,
int radius,
float pca_threshold)
{
int x = get_global_id(0);
int y = get_global_id(1);
if(x < filter_area.z && y < filter_area.w) {
ccl_global int *l_rank = rank + y*filter_area.z + x;
ccl_global float *l_transform = transform + y*filter_area.z + x;
kernel_filter_construct_transform(buffer,
x + filter_area.x, y + filter_area.y,
rect, pass_stride,
l_transform, l_rank,
radius, pca_threshold,
filter_area.z*filter_area.w,
get_local_id(1)*get_local_size(0) + get_local_id(0));
}
}
__kernel void kernel_ocl_filter_nlm_calc_difference(const ccl_global float *ccl_restrict weight_image,
const ccl_global float *ccl_restrict variance_image,
ccl_global float *difference_image,
int w,
int h,
int stride,
int shift_stride,
int r,
int channel_offset,
float a,
float k_2)
{
int4 co, rect;
int ofs;
if(get_nlm_coords(w, h, r, shift_stride, &rect, &co, &ofs)) {
kernel_filter_nlm_calc_difference(co.x, co.y, co.z, co.w,
weight_image,
variance_image,
difference_image + ofs,
rect, stride,
channel_offset, a, k_2);
}
}
__kernel void kernel_ocl_filter_nlm_blur(const ccl_global float *ccl_restrict difference_image,
ccl_global float *out_image,
int w,
int h,
int stride,
int shift_stride,
int r,
int f)
{
int4 co, rect;
int ofs;
if(get_nlm_coords(w, h, r, shift_stride, &rect, &co, &ofs)) {
kernel_filter_nlm_blur(co.x, co.y,
difference_image + ofs,
out_image + ofs,
rect, stride, f);
}
}
__kernel void kernel_ocl_filter_nlm_calc_weight(const ccl_global float *ccl_restrict difference_image,
ccl_global float *out_image,
int w,
int h,
int stride,
int shift_stride,
int r,
int f)
{
int4 co, rect;
int ofs;
if(get_nlm_coords(w, h, r, shift_stride, &rect, &co, &ofs)) {
kernel_filter_nlm_calc_weight(co.x, co.y,
difference_image + ofs,
out_image + ofs,
rect, stride, f);
}
}
__kernel void kernel_ocl_filter_nlm_update_output(const ccl_global float *ccl_restrict difference_image,
const ccl_global float *ccl_restrict image,
ccl_global float *out_image,
ccl_global float *accum_image,
int w,
int h,
int stride,
int shift_stride,
int r,
int f)
{
int4 co, rect;
int ofs;
if(get_nlm_coords(w, h, r, shift_stride, &rect, &co, &ofs)) {
kernel_filter_nlm_update_output(co.x, co.y, co.z, co.w,
difference_image + ofs,
image,
out_image,
accum_image,
rect, stride, f);
}
}
__kernel void kernel_ocl_filter_nlm_normalize(ccl_global float *out_image,
const ccl_global float *ccl_restrict accum_image,
int w,
int h,
int stride)
{
int x = get_global_id(0);
int y = get_global_id(1);
if(x < w && y < h) {
kernel_filter_nlm_normalize(x, y, out_image, accum_image, stride);
}
}
__kernel void kernel_ocl_filter_nlm_construct_gramian(const ccl_global float *ccl_restrict difference_image,
const ccl_global float *ccl_restrict buffer,
const ccl_global float *ccl_restrict transform,
ccl_global int *rank,
ccl_global float *XtWX,
ccl_global float3 *XtWY,
int4 filter_window,
int w,
int h,
int stride,
int shift_stride,
int r,
int f,
int pass_stride)
{
int4 co, rect;
int ofs;
if(get_nlm_coords_window(w, h, r, shift_stride, &rect, &co, &ofs, filter_window)) {
kernel_filter_nlm_construct_gramian(co.x, co.y,
co.z, co.w,
difference_image + ofs,
buffer,
transform, rank,
XtWX, XtWY,
rect, filter_window,
stride, f,
pass_stride,
get_local_id(1)*get_local_size(0) + get_local_id(0));
}
}
__kernel void kernel_ocl_filter_finalize(ccl_global float *buffer,
ccl_global int *rank,
ccl_global float *XtWX,
ccl_global float3 *XtWY,
int4 filter_area,
int4 buffer_params,
int sample)
{
int x = get_global_id(0);
int y = get_global_id(1);
if(x < filter_area.z && y < filter_area.w) {
int storage_ofs = y*filter_area.z+x;
rank += storage_ofs;
XtWX += storage_ofs;
XtWY += storage_ofs;
kernel_filter_finalize(x, y, buffer, rank,
filter_area.z*filter_area.w,
XtWX, XtWY,
buffer_params, sample);
}
}
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