openwrt/upstream - upstream openwrt

	Commit message (Expand)	Author	Age	Files	Lines
*	kernel: update kernel 4.4 to version 4.4.19	Stijn Tintel	2016-08-23	1	-53/+0
*	brcm2708: update linux 4.4 patches to latest version	Álvaro Fernández Rojas	2016-07-09	1	-0/+53

/* * Copyright © 2013 Soren Sandmann Pedersen * Copyright © 2013 Red Hat, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Author: Soren Sandmann (soren.sandmann@gmail.com) */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <stdlib.h> #include <mmintrin.h> #include <xmmintrin.h> #include <emmintrin.h> #include <tmmintrin.h> #include "pixman-private.h" #include "pixman-inlines.h" typedef struct { int y; uint64_t * buffer; } line_t; typedef struct { line_t lines[2]; pixman_fixed_t y; pixman_fixed_t x; uint64_t data[1]; } bilinear_info_t; static void ssse3_fetch_horizontal (bits_image_t *image, line_t *line, int y, pixman_fixed_t x, pixman_fixed_t ux, int n) { uint32_t *bits = image->bits + y * image->rowstride; __m128i vx = _mm_set_epi16 ( - (x + 1), x, - (x + 1), x, - (x + ux + 1), x + ux, - (x + ux + 1), x + ux); __m128i vux = _mm_set_epi16 ( - 2 * ux, 2 * ux, - 2 * ux, 2 * ux, - 2 * ux, 2 * ux, - 2 * ux, 2 * ux); __m128i vaddc = _mm_set_epi16 (1, 0, 1, 0, 1, 0, 1, 0); __m128i *b = (__m128i *)line->buffer; __m128i vrl0, vrl1; while ((n -= 2) >= 0) { __m128i vw, vr, s; vrl1 = _mm_loadl_epi64 ( (__m128i *)(bits + pixman_fixed_to_int (x + ux))); /* vrl1: R1, L1 */ final_pixel: vrl0 = _mm_loadl_epi64 ( (__m128i *)(bits + pixman_fixed_to_int (x))); /* vrl0: R0, L0 */ /* The weights are based on vx which is a vector of * * - (x + 1), x, - (x + 1), x, * - (x + ux + 1), x + ux, - (x + ux + 1), x + ux * * so the 16 bit weights end up like this: * * iw0, w0, iw0, w0, iw1, w1, iw1, w1 * * and after shifting and packing, we get these bytes: * * iw0, w0, iw0, w0, iw1, w1, iw1, w1, * iw0, w0, iw0, w0, iw1, w1, iw1, w1, * * which means the first and the second input pixel * have to be interleaved like this: * * la0, ra0, lr0, rr0, la1, ra1, lr1, rr1, * lg0, rg0, lb0, rb0, lg1, rg1, lb1, rb1 * * before maddubsw can be used. */ vw = _mm_add_epi16 ( vaddc, _mm_srli_epi16 (vx, 16 - BILINEAR_INTERPOLATION_BITS)); /* vw: iw0, w0, iw0, w0, iw1, w1, iw1, w1 */ vw = _mm_packus_epi16 (vw, vw); /* vw: iw0, w0, iw0, w0, iw1, w1, iw1, w1, * iw0, w0, iw0, w0, iw1, w1, iw1, w1 */ vx = _mm_add_epi16 (vx, vux); x += 2 * ux; vr = _mm_unpacklo_epi16 (vrl1, vrl0); /* vr: rar0, rar1, rgb0, rgb1, lar0, lar1, lgb0, lgb1 */ s = _mm_shuffle_epi32 (vr, _MM_SHUFFLE (1, 0, 3, 2)); /* s: lar0, lar1, lgb0, lgb1, rar0, rar1, rgb0, rgb1 */ vr = _mm_unpackhi_epi8 (vr, s); /* vr: la0, ra0, lr0, rr0, la1, ra1, lr1, rr1, * lg0, rg0, lb0, rb0, lg1, rg1, lb1, rb1 */ vr = _mm_maddubs_epi16 (vr, vw); /* When the weight is 0, the inverse weight is * 128 which can't be represented in a signed byte. * As a result maddubsw computes the following: * * r = l * -128 + r * 0 * * rather than the desired * * r = l * 128 + r * 0 * * We fix this by taking the absolute value of the * result. */ vr = _mm_abs_epi16 (vr); /* vr: A0, R0, A1, R1, G0, B0, G1, B1 */ _mm_store_si128 (b++, vr); } if (n == -1) { vrl1 = _mm_setzero_si128(); goto final_pixel; } line->y = y; } static uint32_t * ssse3_fetch_bilinear_cover (pixman_iter_t *iter, const uint32_t *mask) { pixman_fixed_t fx, ux; bilinear_info_t *info = iter->data; line_t *line0, *line1; int y0, y1; int32_t dist_y; __m128i vw; int i; fx = info->x; ux = iter->image->common.transform->matrix[0][0]; y0 = pixman_fixed_to_int (info->y); y1 = y0 + 1; line0 = &info->lines[y0 & 0x01]; line1 = &info->lines[y1 & 0x01]; if (line0->y != y0) { ssse3_fetch_horizontal ( &iter->image->bits, line0, y0, fx, ux, iter->width); } if (line1->y != y1) { ssse3_fetch_horizontal ( &iter->image->bits, line1, y1, fx, ux, iter->width); } dist_y = pixman_fixed_to_bilinear_weight (info->y); dist_y <<= (16 - BILINEAR_INTERPOLATION_BITS); vw = _mm_set_epi16 ( dist_y, dist_y, dist_y, dist_y, dist_y, dist_y, dist_y, dist_y); for (i = 0; i + 3 < iter->width; i += 4) { __m128i top0 = _mm_load_si128 ((__m128i *)(line0->buffer + i)); __m128i bot0 = _mm_load_si128 ((__m128i *)(line1->buffer + i)); __m128i top1 = _mm_load_si128 ((__m128i *)(line0->buffer + i + 2)); __m128i bot1 = _mm_load_si128 ((__m128i *)(line1->buffer + i + 2)); __m128i r0, r1, tmp, p; r0 = _mm_mulhi_epu16 ( _mm_sub_epi16 (bot0, top0), vw); tmp = _mm_cmplt_epi16 (bot0, top0); tmp = _mm_and_si128 (tmp, vw); r0 = _mm_sub_epi16 (r0, tmp); r0 = _mm_add_epi16 (r0, top0); r0 = _mm_srli_epi16 (r0, BILINEAR_INTERPOLATION_BITS); /* r0: A0 R0 A1 R1 G0 B0 G1 B1 */ r0 = _mm_shuffle_epi32 (r0, _MM_SHUFFLE (2, 0, 3, 1)); /* r0: A1 R1 G1 B1 A0 R0 G0 B0 */ r1 = _mm_mulhi_epu16 ( _mm_sub_epi16 (bot1, top1), vw); tmp = _mm_cmplt_epi16 (bot1, top1); tmp = _mm_and_si128 (tmp, vw); r1 = _mm_sub_epi16 (r1, tmp); r1 = _mm_add_epi16 (r1, top1); r1 = _mm_srli_epi16 (r1, BILINEAR_INTERPOLATION_BITS); r1 = _mm_shuffle_epi32 (r1, _MM_SHUFFLE (2, 0, 3, 1)); /* r1: A3 R3 G3 B3 A2 R2 G2 B2 */ p = _mm_packus_epi16 (r0, r1); _mm_storeu_si128 ((__m128i *)(iter->buffer + i), p); } while (i < iter->width) { __m128i top0 = _mm_load_si128 ((__m128i *)(line0->buffer + i)); __m128i bot0 = _mm_load_si128 ((__m128i *)(line1->buffer + i)); __m128i r0, tmp, p; r0 = _mm_mulhi_epu16 ( _mm_sub_epi16 (bot0, top0), vw); tmp = _mm_cmplt_epi16 (bot0, top0); tmp = _mm_and_si128 (tmp, vw); r0 = _mm_sub_epi16 (r0, tmp); r0 = _mm_add_epi16 (r0, top0); r0 = _mm_srli_epi16 (r0, BILINEAR_INTERPOLATION_BITS); /* r0: A0 R0 A1 R1 G0 B0 G1 B1 */ r0 = _mm_shuffle_epi32 (r0, _MM_SHUFFLE (2, 0, 3, 1)); /* r0: A1 R1 G1 B1 A0 R0 G0 B0 */ p = _mm_packus_epi16 (r0, r0); if (iter->width - i == 1) { *(uint32_t *)(iter->buffer + i) = _mm_cvtsi128_si32 (p); i++; } else { _mm_storel_epi64 ((__m128i *)(iter->buffer + i), p); i += 2; } } info->y += iter->image->common.transform->matrix[1][1]; return iter->buffer; } static void ssse3_bilinear_cover_iter_fini (pixman_iter_t *iter) { free (iter->data); } static void ssse3_bilinear_cover_iter_init (pixman_iter_t *iter, const pixman_iter_info_t *iter_info) { int width = iter->width; bilinear_info_t *info; pixman_vector_t v; /* Reference point is the center of the pixel */ v.vector[0] = pixman_int_to_fixed (iter->x) + pixman_fixed_1 / 2; v.vector[1] = pixman_int_to_fixed (iter->y) + pixman_fixed_1 / 2; v.vector[2] = pixman_fixed_1; if (!pixman_transform_point_3d (iter->image->common.transform, &v)) goto fail; info = malloc (sizeof (*info) + (2 * width - 1) * sizeof (uint64_t) + 64); if (!info) goto fail; info->x = v.vector[0] - pixman_fixed_1 / 2; info->y = v.vector[1] - pixman_fixed_1 / 2; #define ALIGN(addr) \ ((void *)((((uintptr_t)(addr)) + 15) & (~15))) /* It is safe to set the y coordinates to -1 initially * because COVER_CLIP_BILINEAR ensures that we will only * be asked to fetch lines in the [0, height) interval */ info->lines[0].y = -1; info->lines[0].buffer = ALIGN (&(info->data[0])); info->lines[1].y = -1; info->lines[1].buffer = ALIGN (info->lines[0].buffer + width); iter->get_scanline = ssse3_fetch_bilinear_cover; iter->fini = ssse3_bilinear_cover_iter_fini; iter->data = info; return; fail: /* Something went wrong, either a bad matrix or OOM; in such cases, * we don't guarantee any particular rendering. */ _pixman_log_error ( FUNC, "Allocation failure or bad matrix, skipping rendering\n"); iter->get_scanline = _pixman_iter_get_scanline_noop; iter->fini = NULL; } static const pixman_iter_info_t ssse3_iters[] = { { PIXMAN_a8r8g8b8, (FAST_PATH_STANDARD_FLAGS | FAST_PATH_SCALE_TRANSFORM | FAST_PATH_BILINEAR_FILTER | FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR), ITER_NARROW | ITER_SRC, ssse3_bilinear_cover_iter_init, NULL, NULL }, { PIXMAN_null }, }; static const pixman_fast_path_t ssse3_fast_paths[] = { { PIXMAN_OP_NONE }, }; pixman_implementation_t * _pixman_implementation_create_ssse3 (pixman_implementation_t *fallback) { pixman_implementation_t *imp = _pixman_implementation_create (fallback, ssse3_fast_paths); imp->iter_info = ssse3_iters; return imp; }