Differential D2592 Diff 8522 intern/cycles/filter/filter_features_sse.h

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intern/cycles/filter/filter_features_sse.h

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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.
				*/

				CCL_NAMESPACE_BEGIN

				#define ccl_get_feature_sse(pass) _mm_loadu_ps(buffer + (pass)*pass_stride)

				/* Loop over the pixels in the range [low.x, high.x) x [low.y, high.y), 4 at a time.
				* pixel_buffer always points to the first of the 4 current pixel in the first pass.
				* x4 and y4 contain the coordinates of the four pixels, active_pixels contains a mask that's set for all pixels within the window. */

				#define FOR_PIXEL_WINDOW_SSE pixel_buffer = buffer + (low.y - rect.y)*buffer_w + (low.x - rect.x); \
				for(pixel.y = low.y; pixel.y < high.y; pixel.y++) { \
				__m128 y4 = _mm_set1_ps(pixel.y); \
				for(pixel.x = low.x; pixel.x < high.x; pixel.x += 4, pixel_buffer += 4) { \
				__m128 x4 = _mm_add_ps(_mm_set1_ps(pixel.x), _mm_set_ps(3.0f, 2.0f, 1.0f, 0.0f)); \
				__m128 active_pixels = _mm_cmplt_ps(x4, _mm_set1_ps(high.x));

				#define END_FOR_PIXEL_WINDOW_SSE } \
				pixel_buffer += buffer_w - (pixel.x - low.x); \
				}

				ccl_device_inline void filter_get_features_sse(__m128 x, __m128 y, __m128 active_pixels, float ccl_readonly_ptr buffer, __m128 *features, __m128 ccl_readonly_ptr mean, int pass_stride)
				{
				features[0] = x;
				features[1] = y;
				features[2] = ccl_get_feature_sse(0);
				features[3] = ccl_get_feature_sse(1);
				features[4] = ccl_get_feature_sse(2);
				features[5] = ccl_get_feature_sse(3);
				features[6] = ccl_get_feature_sse(4);
				features[7] = ccl_get_feature_sse(5);
				features[8] = ccl_get_feature_sse(6);
				features[9] = ccl_get_feature_sse(7);
				if(mean) {
				for(int i = 0; i < DENOISE_FEATURES; i++)
				features[i] = _mm_sub_ps(features[i], mean[i]);
				}
				for(int i = 0; i < DENOISE_FEATURES; i++)
				features[i] = _mm_mask_ps(features[i], active_pixels);
				}

				ccl_device_inline void filter_get_feature_scales_sse(__m128 x, __m128 y, __m128 active_pixels, float ccl_readonly_ptr buffer, __m128 *scales, __m128 ccl_readonly_ptr mean, int pass_stride)
				{
				scales[0] = _mm_mask_ps(_mm_fabs_ps(_mm_sub_ps(x, mean[0])), active_pixels);
				scales[1] = _mm_mask_ps(_mm_fabs_ps(_mm_sub_ps(y, mean[1])), active_pixels);

				scales[2] = _mm_mask_ps(_mm_fabs_ps(_mm_sub_ps(ccl_get_feature_sse(0), mean[2])), active_pixels);

				__m128 diff, scale;
				diff = _mm_sub_ps(ccl_get_feature_sse(1), mean[3]);
				scale = _mm_mul_ps(diff, diff);
				diff = _mm_sub_ps(ccl_get_feature_sse(2), mean[4]);
				scale = _mm_add_ps(scale, _mm_mul_ps(diff, diff));
				diff = _mm_sub_ps(ccl_get_feature_sse(3), mean[5]);
				scale = _mm_add_ps(scale, _mm_mul_ps(diff, diff));
				scales[3] = _mm_mask_ps(scale, active_pixels);

				scales[4] = _mm_mask_ps(_mm_fabs_ps(_mm_sub_ps(ccl_get_feature_sse(4), mean[6])), active_pixels);

				diff = _mm_sub_ps(ccl_get_feature_sse(5), mean[7]);
				scale = _mm_mul_ps(diff, diff);
				diff = _mm_sub_ps(ccl_get_feature_sse(6), mean[8]);
				scale = _mm_add_ps(scale, _mm_mul_ps(diff, diff));
				diff = _mm_sub_ps(ccl_get_feature_sse(7), mean[9]);
				scale = _mm_add_ps(scale, _mm_mul_ps(diff, diff));
				scales[5] = _mm_mask_ps(scale, active_pixels);
				}

				ccl_device_inline void filter_calculate_scale_sse(__m128 *scale)
				{
				scale[0] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(scale[0]), _mm_set1_ps(0.01f)));
				scale[1] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(scale[1]), _mm_set1_ps(0.01f)));
				scale[2] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(scale[2]), _mm_set1_ps(0.01f)));
				scale[6] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(scale[4]), _mm_set1_ps(0.01f)));

				scale[7] = scale[8] = scale[9] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(_mm_sqrt_ps(scale[5])), _mm_set1_ps(0.01f)));
				scale[3] = scale[4] = scale[5] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(_mm_sqrt_ps(scale[3])), _mm_set1_ps(0.01f)));
				}


				CCL_NAMESPACE_END