1481 lines
41 KiB
C
1481 lines
41 KiB
C
/*
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* This file is part of the Scale2x project.
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*
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* Copyright (C) 2001, 2002, 2003, 2004 Andrea Mazzoleni
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* This file contains a C and MMX implementation of the Scale2x effect.
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*
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* You can find an high level description of the effect at :
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*
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* http://scale2x.sourceforge.net/
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*
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* Alternatively at the previous license terms, you are allowed to use this
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* code in your program with these conditions:
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* - the program is not used in commercial activities.
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* - the whole source code of the program is released with the binary.
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* - derivative works of the program are allowed.
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*/
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "scale2x.h"
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#include <assert.h>
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/***************************************************************************/
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/* Scale2x C implementation */
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/**
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* Define the macro USE_SCALE_RANDOMWRITE to enable
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* an optimized version which writes memory in random order.
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* This version is a little faster if you write in system memory.
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* But it's a lot slower if you write in video memory.
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* So, enable it only if you are sure to never write directly in video memory.
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*/
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/* #define USE_SCALE_RANDOMWRITE */
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#ifdef USE_SCALE_RANDOMWRITE
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static inline void scale2x_8_def_whole(scale2x_uint8* restrict dst0, scale2x_uint8* restrict dst1, const scale2x_uint8* restrict src0, const scale2x_uint8* restrict src1, const scale2x_uint8* restrict src2, unsigned count)
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{
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assert(count >= 2);
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/* first pixel */
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if (src0[0] != src2[0] && src1[0] != src1[1]) {
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dst0[0] = src1[0] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[0] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[1] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst0 += 2;
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dst1 += 2;
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/* central pixels */
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count -= 2;
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while (count) {
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if (src0[0] != src2[0] && src1[-1] != src1[1]) {
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dst0[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[-1] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[1] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst0 += 2;
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dst1 += 2;
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--count;
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}
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/* last pixel */
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if (src0[0] != src2[0] && src1[-1] != src1[0]) {
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dst0[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[0] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[-1] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[0] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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}
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#else /* USE_SCALE_RANDOMWRITE */
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static inline void scale2x_8_def_border(scale2x_uint8* restrict dst, const scale2x_uint8* restrict src0, const scale2x_uint8* restrict src1, const scale2x_uint8* restrict src2, unsigned count)
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{
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assert(count >= 2);
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/* first pixel */
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if (src0[0] != src2[0] && src1[0] != src1[1]) {
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dst[0] = src1[0] == src0[0] ? src0[0] : src1[0];
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dst[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst += 2;
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/* central pixels */
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count -= 2;
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while (count) {
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if (src0[0] != src2[0] && src1[-1] != src1[1]) {
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dst[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst += 2;
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--count;
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}
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/* last pixel */
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if (src0[0] != src2[0] && src1[-1] != src1[0]) {
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dst[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst[1] = src1[0] == src0[0] ? src0[0] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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}
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static inline void scale2x_8_def_center(scale2x_uint8* restrict dst, const scale2x_uint8* restrict src0, const scale2x_uint8* restrict src1, const scale2x_uint8* restrict src2, unsigned count)
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{
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assert(count >= 2);
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/* first pixel */
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if (src0[0] != src2[0] && src1[0] != src1[1]) {
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dst[0] = src1[0];
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dst[1] = (src1[1] == src0[0] && src1[0] != src2[1]) || (src1[1] == src2[0] && src1[0] != src0[1]) ? src1[1] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst += 2;
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/* central pixels */
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count -= 2;
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while (count) {
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if (src0[0] != src2[0] && src1[-1] != src1[1]) {
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dst[0] = (src1[-1] == src0[0] && src1[0] != src2[-1]) || (src1[-1] == src2[0] && src1[0] != src0[-1]) ? src1[-1] : src1[0];
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dst[1] = (src1[1] == src0[0] && src1[0] != src2[1]) || (src1[1] == src2[0] && src1[0] != src0[1]) ? src1[1] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst += 2;
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--count;
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}
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/* last pixel */
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if (src0[0] != src2[0] && src1[-1] != src1[0]) {
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dst[0] = (src1[-1] == src0[0] && src1[0] != src2[-1]) || (src1[-1] == src2[0] && src1[0] != src0[-1]) ? src1[-1] : src1[0];
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dst[1] = src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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}
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#endif /* USE_SCALE_RANDOMWRITE */
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#ifdef USE_SCALE_RANDOMWRITE
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static inline void scale2x_16_def_whole(scale2x_uint16* restrict dst0, scale2x_uint16* restrict dst1, const scale2x_uint16* restrict src0, const scale2x_uint16* restrict src1, const scale2x_uint16* restrict src2, unsigned count)
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{
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assert(count >= 2);
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/* first pixel */
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if (src0[0] != src2[0] && src1[0] != src1[1]) {
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dst0[0] = src1[0] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[0] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[1] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst0 += 2;
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dst1 += 2;
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/* central pixels */
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count -= 2;
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while (count) {
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if (src0[0] != src2[0] && src1[-1] != src1[1]) {
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dst0[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[-1] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[1] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst0 += 2;
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dst1 += 2;
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--count;
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}
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/* last pixel */
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if (src0[0] != src2[0] && src1[-1] != src1[0]) {
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dst0[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[0] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[-1] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[0] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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}
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#else /* USE_SCALE_RANDOMWRITE */
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static inline void scale2x_16_def_border(scale2x_uint16* restrict dst, const scale2x_uint16* restrict src0, const scale2x_uint16* restrict src1, const scale2x_uint16* restrict src2, unsigned count)
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{
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assert(count >= 2);
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/* first pixel */
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if (src0[0] != src2[0] && src1[0] != src1[1]) {
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dst[0] = src1[0] == src0[0] ? src0[0] : src1[0];
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dst[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst += 2;
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/* central pixels */
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count -= 2;
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while (count) {
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if (src0[0] != src2[0] && src1[-1] != src1[1]) {
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dst[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst += 2;
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--count;
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}
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/* last pixel */
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if (src0[0] != src2[0] && src1[-1] != src1[0]) {
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dst[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst[1] = src1[0] == src0[0] ? src0[0] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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}
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static inline void scale2x_16_def_center(scale2x_uint16* restrict dst, const scale2x_uint16* restrict src0, const scale2x_uint16* restrict src1, const scale2x_uint16* restrict src2, unsigned count)
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{
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assert(count >= 2);
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/* first pixel */
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if (src0[0] != src2[0] && src1[0] != src1[1]) {
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dst[0] = src1[0];
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dst[1] = (src1[1] == src0[0] && src1[0] != src2[1]) || (src1[1] == src2[0] && src1[0] != src0[1]) ? src1[1] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst += 2;
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/* central pixels */
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count -= 2;
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while (count) {
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if (src0[0] != src2[0] && src1[-1] != src1[1]) {
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dst[0] = (src1[-1] == src0[0] && src1[0] != src2[-1]) || (src1[-1] == src2[0] && src1[0] != src0[-1]) ? src1[-1] : src1[0];
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dst[1] = (src1[1] == src0[0] && src1[0] != src2[1]) || (src1[1] == src2[0] && src1[0] != src0[1]) ? src1[1] : src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst += 2;
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--count;
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}
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/* last pixel */
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if (src0[0] != src2[0] && src1[-1] != src1[0]) {
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dst[0] = (src1[-1] == src0[0] && src1[0] != src2[-1]) || (src1[-1] == src2[0] && src1[0] != src0[-1]) ? src1[-1] : src1[0];
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dst[1] = src1[0];
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} else {
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dst[0] = src1[0];
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dst[1] = src1[0];
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}
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}
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#endif /* USE_SCALE_RANDOMWRITE */
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#ifdef USE_SCALE_RANDOMWRITE
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static inline void scale2x_32_def_whole(scale2x_uint32* restrict dst0, scale2x_uint32* restrict dst1, const scale2x_uint32* restrict src0, const scale2x_uint32* restrict src1, const scale2x_uint32* restrict src2, unsigned count)
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{
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assert(count >= 2);
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/* first pixel */
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if (src0[0] != src2[0] && src1[0] != src1[1]) {
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dst0[0] = src1[0] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[0] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[1] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst0 += 2;
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dst1 += 2;
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/* central pixels */
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count -= 2;
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while (count) {
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if (src0[0] != src2[0] && src1[-1] != src1[1]) {
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dst0[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[1] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[-1] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[1] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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++src0;
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++src1;
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++src2;
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dst0 += 2;
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dst1 += 2;
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--count;
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}
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/* last pixel */
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if (src0[0] != src2[0] && src1[-1] != src1[0]) {
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dst0[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
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dst0[1] = src1[0] == src0[0] ? src0[0] : src1[0];
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dst1[0] = src1[-1] == src2[0] ? src2[0] : src1[0];
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dst1[1] = src1[0] == src2[0] ? src2[0] : src1[0];
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} else {
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dst0[0] = src1[0];
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dst0[1] = src1[0];
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dst1[0] = src1[0];
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dst1[1] = src1[0];
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}
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}
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|
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#else /* USE_SCALE_RANDOMWRITE */
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|
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static inline void scale2x_32_def_border(scale2x_uint32* restrict dst, const scale2x_uint32* restrict src0, const scale2x_uint32* restrict src1, const scale2x_uint32* restrict src2, unsigned count)
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{
|
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assert(count >= 2);
|
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|
|
/* first pixel */
|
|
if (src0[0] != src2[0] && src1[0] != src1[1]) {
|
|
dst[0] = src1[0] == src0[0] ? src0[0] : src1[0];
|
|
dst[1] = src1[1] == src0[0] ? src0[0] : src1[0];
|
|
} else {
|
|
dst[0] = src1[0];
|
|
dst[1] = src1[0];
|
|
}
|
|
++src0;
|
|
++src1;
|
|
++src2;
|
|
dst += 2;
|
|
|
|
/* central pixels */
|
|
count -= 2;
|
|
while (count) {
|
|
if (src0[0] != src2[0] && src1[-1] != src1[1]) {
|
|
dst[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
|
|
dst[1] = src1[1] == src0[0] ? src0[0] : src1[0];
|
|
} else {
|
|
dst[0] = src1[0];
|
|
dst[1] = src1[0];
|
|
}
|
|
|
|
++src0;
|
|
++src1;
|
|
++src2;
|
|
dst += 2;
|
|
--count;
|
|
}
|
|
|
|
/* last pixel */
|
|
if (src0[0] != src2[0] && src1[-1] != src1[0]) {
|
|
dst[0] = src1[-1] == src0[0] ? src0[0] : src1[0];
|
|
dst[1] = src1[0] == src0[0] ? src0[0] : src1[0];
|
|
} else {
|
|
dst[0] = src1[0];
|
|
dst[1] = src1[0];
|
|
}
|
|
}
|
|
|
|
static inline void scale2x_32_def_center(scale2x_uint32* restrict dst, const scale2x_uint32* restrict src0, const scale2x_uint32* restrict src1, const scale2x_uint32* restrict src2, unsigned count)
|
|
{
|
|
assert(count >= 2);
|
|
|
|
/* first pixel */
|
|
if (src0[0] != src2[0] && src1[0] != src1[1]) {
|
|
dst[0] = src1[0];
|
|
dst[1] = (src1[1] == src0[0] && src1[0] != src2[1]) || (src1[1] == src2[0] && src1[0] != src0[1]) ? src1[1] : src1[0];
|
|
} else {
|
|
dst[0] = src1[0];
|
|
dst[1] = src1[0];
|
|
}
|
|
++src0;
|
|
++src1;
|
|
++src2;
|
|
dst += 2;
|
|
|
|
/* central pixels */
|
|
count -= 2;
|
|
while (count) {
|
|
if (src0[0] != src2[0] && src1[-1] != src1[1]) {
|
|
dst[0] = (src1[-1] == src0[0] && src1[0] != src2[-1]) || (src1[-1] == src2[0] && src1[0] != src0[-1]) ? src1[-1] : src1[0];
|
|
dst[1] = (src1[1] == src0[0] && src1[0] != src2[1]) || (src1[1] == src2[0] && src1[0] != src0[1]) ? src1[1] : src1[0];
|
|
} else {
|
|
dst[0] = src1[0];
|
|
dst[1] = src1[0];
|
|
}
|
|
|
|
++src0;
|
|
++src1;
|
|
++src2;
|
|
dst += 2;
|
|
--count;
|
|
}
|
|
|
|
/* last pixel */
|
|
if (src0[0] != src2[0] && src1[-1] != src1[0]) {
|
|
dst[0] = (src1[-1] == src0[0] && src1[0] != src2[-1]) || (src1[-1] == src2[0] && src1[0] != src0[-1]) ? src1[-1] : src1[0];
|
|
dst[1] = src1[0];
|
|
} else {
|
|
dst[0] = src1[0];
|
|
dst[1] = src1[0];
|
|
}
|
|
}
|
|
|
|
#endif /* USE_SCALE_RANDOMWRITE */
|
|
|
|
/**
|
|
* Scale by a factor of 2 a row of pixels of 8 bits.
|
|
* The function is implemented in C.
|
|
* The pixels over the left and right borders are assumed of the same color of
|
|
* the pixels on the border.
|
|
* Note that the implementation is optimized to write data sequentially to
|
|
* maximize the bandwidth on video memory.
|
|
* \param src0 Pointer at the first pixel of the previous row.
|
|
* \param src1 Pointer at the first pixel of the current row.
|
|
* \param src2 Pointer at the first pixel of the next row.
|
|
* \param count Length in pixels of the src0, src1 and src2 rows.
|
|
* It must be at least 2.
|
|
* \param dst0 First destination row, double length in pixels.
|
|
* \param dst1 Second destination row, double length in pixels.
|
|
*/
|
|
void scale2x_8_def(scale2x_uint8* dst0, scale2x_uint8* dst1, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_8_def_whole(dst0, dst1, src0, src1, src2, count);
|
|
#else
|
|
scale2x_8_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_8_def_border(dst1, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2 a row of pixels of 16 bits.
|
|
* This function operates like scale2x_8_def() but for 16 bits pixels.
|
|
* \param src0 Pointer at the first pixel of the previous row.
|
|
* \param src1 Pointer at the first pixel of the current row.
|
|
* \param src2 Pointer at the first pixel of the next row.
|
|
* \param count Length in pixels of the src0, src1 and src2 rows.
|
|
* It must be at least 2.
|
|
* \param dst0 First destination row, double length in pixels.
|
|
* \param dst1 Second destination row, double length in pixels.
|
|
*/
|
|
void scale2x_16_def(scale2x_uint16* dst0, scale2x_uint16* dst1, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_16_def_whole(dst0, dst1, src0, src1, src2, count);
|
|
#else
|
|
scale2x_16_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_16_def_border(dst1, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2 a row of pixels of 32 bits.
|
|
* This function operates like scale2x_8_def() but for 32 bits pixels.
|
|
* \param src0 Pointer at the first pixel of the previous row.
|
|
* \param src1 Pointer at the first pixel of the current row.
|
|
* \param src2 Pointer at the first pixel of the next row.
|
|
* \param count Length in pixels of the src0, src1 and src2 rows.
|
|
* It must be at least 2.
|
|
* \param dst0 First destination row, double length in pixels.
|
|
* \param dst1 Second destination row, double length in pixels.
|
|
*/
|
|
void scale2x_32_def(scale2x_uint32* dst0, scale2x_uint32* dst1, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_32_def_whole(dst0, dst1, src0, src1, src2, count);
|
|
#else
|
|
scale2x_32_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_32_def_border(dst1, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x3 a row of pixels of 8 bits.
|
|
* \note Like scale2x_8_def();
|
|
*/
|
|
void scale2x3_8_def(scale2x_uint8* dst0, scale2x_uint8* dst1, scale2x_uint8* dst2, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_8_def_whole(dst0, dst2, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst1, src0, src1, src2, count);
|
|
#else
|
|
scale2x_8_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_8_def_border(dst2, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x3 a row of pixels of 16 bits.
|
|
* \note Like scale2x_16_def();
|
|
*/
|
|
void scale2x3_16_def(scale2x_uint16* dst0, scale2x_uint16* dst1, scale2x_uint16* dst2, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_16_def_whole(dst0, dst2, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst1, src0, src1, src2, count);
|
|
#else
|
|
scale2x_16_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_16_def_border(dst2, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x3 a row of pixels of 32 bits.
|
|
* \note Like scale2x_32_def();
|
|
*/
|
|
void scale2x3_32_def(scale2x_uint32* dst0, scale2x_uint32* dst1, scale2x_uint32* dst2, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_32_def_whole(dst0, dst2, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst1, src0, src1, src2, count);
|
|
#else
|
|
scale2x_32_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_32_def_border(dst2, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x4 a row of pixels of 8 bits.
|
|
* \note Like scale2x_8_def();
|
|
*/
|
|
void scale2x4_8_def(scale2x_uint8* dst0, scale2x_uint8* dst1, scale2x_uint8* dst2, scale2x_uint8* dst3, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_8_def_whole(dst0, dst3, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst2, src0, src1, src2, count);
|
|
#else
|
|
scale2x_8_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst2, src0, src1, src2, count);
|
|
scale2x_8_def_border(dst3, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x4 a row of pixels of 16 bits.
|
|
* \note Like scale2x_16_def();
|
|
*/
|
|
void scale2x4_16_def(scale2x_uint16* dst0, scale2x_uint16* dst1, scale2x_uint16* dst2, scale2x_uint16* dst3, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_16_def_whole(dst0, dst3, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst2, src0, src1, src2, count);
|
|
#else
|
|
scale2x_16_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst2, src0, src1, src2, count);
|
|
scale2x_16_def_border(dst3, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x4 a row of pixels of 32 bits.
|
|
* \note Like scale2x_32_def();
|
|
*/
|
|
void scale2x4_32_def(scale2x_uint32* dst0, scale2x_uint32* dst1, scale2x_uint32* dst2, scale2x_uint32* dst3, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count)
|
|
{
|
|
#ifdef USE_SCALE_RANDOMWRITE
|
|
scale2x_32_def_whole(dst0, dst3, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst2, src0, src1, src2, count);
|
|
#else
|
|
scale2x_32_def_border(dst0, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst2, src0, src1, src2, count);
|
|
scale2x_32_def_border(dst3, src2, src1, src0, count);
|
|
#endif
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/* Scale2x MMX implementation */
|
|
|
|
#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
|
|
|
|
/*
|
|
* Apply the Scale2x effect at a single row.
|
|
* This function must be called only by the other scale2x functions.
|
|
*
|
|
* Considering the pixel map :
|
|
*
|
|
* ABC (src0)
|
|
* DEF (src1)
|
|
* GHI (src2)
|
|
*
|
|
* this functions compute 2 new pixels in substitution of the source pixel E
|
|
* like this map :
|
|
*
|
|
* ab (dst)
|
|
*
|
|
* with these variables :
|
|
*
|
|
* ¤t -> E
|
|
* ¤t_left -> D
|
|
* ¤t_right -> F
|
|
* ¤t_upper -> B
|
|
* ¤t_lower -> H
|
|
*
|
|
* %0 -> current_upper
|
|
* %1 -> current
|
|
* %2 -> current_lower
|
|
* %3 -> dst
|
|
* %4 -> counter
|
|
*
|
|
* %mm0 -> *current_left
|
|
* %mm1 -> *current_next
|
|
* %mm2 -> tmp0
|
|
* %mm3 -> tmp1
|
|
* %mm4 -> tmp2
|
|
* %mm5 -> tmp3
|
|
* %mm6 -> *current_upper
|
|
* %mm7 -> *current
|
|
*/
|
|
static inline void scale2x_8_mmx_border(scale2x_uint8* dst, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count)
|
|
{
|
|
assert(count >= 16);
|
|
assert(count % 8 == 0);
|
|
|
|
/* always do the first and last run */
|
|
count -= 2*8;
|
|
|
|
__asm__ __volatile__(
|
|
/* first run */
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq 0(%1), %%mm0\n"
|
|
"movq 0(%1), %%mm7\n"
|
|
"movq 8(%1), %%mm1\n"
|
|
"psllq $56, %%mm0\n"
|
|
"psllq $56, %%mm1\n"
|
|
"psrlq $56, %%mm0\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $8, %%mm2\n"
|
|
"psrlq $8, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqb %%mm6, %%mm2\n"
|
|
"pcmpeqb %%mm6, %%mm4\n"
|
|
"pcmpeqb (%2), %%mm3\n"
|
|
"pcmpeqb (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqb %%mm1, %%mm2\n"
|
|
"pcmpeqb %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpcklbw %%mm4, %%mm2\n"
|
|
"punpckhbw %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
/* next */
|
|
"add $8, %0\n"
|
|
"add $8, %1\n"
|
|
"add $8, %2\n"
|
|
"add $16, %3\n"
|
|
|
|
/* central runs */
|
|
"shr $3, %4\n"
|
|
"jz 1f\n"
|
|
|
|
"0:\n"
|
|
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq -8(%1), %%mm0\n"
|
|
"movq (%1), %%mm7\n"
|
|
"movq 8(%1), %%mm1\n"
|
|
"psrlq $56, %%mm0\n"
|
|
"psllq $56, %%mm1\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $8, %%mm2\n"
|
|
"psrlq $8, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqb %%mm6, %%mm2\n"
|
|
"pcmpeqb %%mm6, %%mm4\n"
|
|
"pcmpeqb (%2), %%mm3\n"
|
|
"pcmpeqb (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqb %%mm1, %%mm2\n"
|
|
"pcmpeqb %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpcklbw %%mm4, %%mm2\n"
|
|
"punpckhbw %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
/* next */
|
|
"add $8, %0\n"
|
|
"add $8, %1\n"
|
|
"add $8, %2\n"
|
|
"add $16, %3\n"
|
|
|
|
"dec %4\n"
|
|
"jnz 0b\n"
|
|
"1:\n"
|
|
|
|
/* final run */
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq (%1), %%mm1\n"
|
|
"movq (%1), %%mm7\n"
|
|
"movq -8(%1), %%mm0\n"
|
|
"psrlq $56, %%mm1\n"
|
|
"psrlq $56, %%mm0\n"
|
|
"psllq $56, %%mm1\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $8, %%mm2\n"
|
|
"psrlq $8, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqb %%mm6, %%mm2\n"
|
|
"pcmpeqb %%mm6, %%mm4\n"
|
|
"pcmpeqb (%2), %%mm3\n"
|
|
"pcmpeqb (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqb %%mm1, %%mm2\n"
|
|
"pcmpeqb %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpcklbw %%mm4, %%mm2\n"
|
|
"punpckhbw %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
: "+r" (src0), "+r" (src1), "+r" (src2), "+r" (dst), "+r" (count)
|
|
:
|
|
: "cc"
|
|
);
|
|
}
|
|
|
|
static inline void scale2x_16_mmx_border(scale2x_uint16* dst, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count)
|
|
{
|
|
assert(count >= 8);
|
|
assert(count % 4 == 0);
|
|
|
|
/* always do the first and last run */
|
|
count -= 2*4;
|
|
|
|
__asm__ __volatile__(
|
|
/* first run */
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq 0(%1), %%mm0\n"
|
|
"movq 0(%1), %%mm7\n"
|
|
"movq 8(%1), %%mm1\n"
|
|
"psllq $48, %%mm0\n"
|
|
"psllq $48, %%mm1\n"
|
|
"psrlq $48, %%mm0\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $16, %%mm2\n"
|
|
"psrlq $16, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqw %%mm6, %%mm2\n"
|
|
"pcmpeqw %%mm6, %%mm4\n"
|
|
"pcmpeqw (%2), %%mm3\n"
|
|
"pcmpeqw (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqw %%mm1, %%mm2\n"
|
|
"pcmpeqw %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpcklwd %%mm4, %%mm2\n"
|
|
"punpckhwd %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
/* next */
|
|
"add $8, %0\n"
|
|
"add $8, %1\n"
|
|
"add $8, %2\n"
|
|
"add $16, %3\n"
|
|
|
|
/* central runs */
|
|
"shr $2, %4\n"
|
|
"jz 1f\n"
|
|
|
|
"0:\n"
|
|
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq -8(%1), %%mm0\n"
|
|
"movq (%1), %%mm7\n"
|
|
"movq 8(%1), %%mm1\n"
|
|
"psrlq $48, %%mm0\n"
|
|
"psllq $48, %%mm1\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $16, %%mm2\n"
|
|
"psrlq $16, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqw %%mm6, %%mm2\n"
|
|
"pcmpeqw %%mm6, %%mm4\n"
|
|
"pcmpeqw (%2), %%mm3\n"
|
|
"pcmpeqw (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqw %%mm1, %%mm2\n"
|
|
"pcmpeqw %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpcklwd %%mm4, %%mm2\n"
|
|
"punpckhwd %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
/* next */
|
|
"add $8, %0\n"
|
|
"add $8, %1\n"
|
|
"add $8, %2\n"
|
|
"add $16, %3\n"
|
|
|
|
"dec %4\n"
|
|
"jnz 0b\n"
|
|
"1:\n"
|
|
|
|
/* final run */
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq (%1), %%mm1\n"
|
|
"movq (%1), %%mm7\n"
|
|
"movq -8(%1), %%mm0\n"
|
|
"psrlq $48, %%mm1\n"
|
|
"psrlq $48, %%mm0\n"
|
|
"psllq $48, %%mm1\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $16, %%mm2\n"
|
|
"psrlq $16, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqw %%mm6, %%mm2\n"
|
|
"pcmpeqw %%mm6, %%mm4\n"
|
|
"pcmpeqw (%2), %%mm3\n"
|
|
"pcmpeqw (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqw %%mm1, %%mm2\n"
|
|
"pcmpeqw %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpcklwd %%mm4, %%mm2\n"
|
|
"punpckhwd %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
: "+r" (src0), "+r" (src1), "+r" (src2), "+r" (dst), "+r" (count)
|
|
:
|
|
: "cc"
|
|
);
|
|
}
|
|
|
|
static inline void scale2x_32_mmx_border(scale2x_uint32* dst, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count)
|
|
{
|
|
assert(count >= 4);
|
|
assert(count % 2 == 0);
|
|
|
|
/* always do the first and last run */
|
|
count -= 2*2;
|
|
|
|
__asm__ __volatile__(
|
|
/* first run */
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq 0(%1), %%mm0\n"
|
|
"movq 0(%1), %%mm7\n"
|
|
"movq 8(%1), %%mm1\n"
|
|
"psllq $32, %%mm0\n"
|
|
"psllq $32, %%mm1\n"
|
|
"psrlq $32, %%mm0\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $32, %%mm2\n"
|
|
"psrlq $32, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqd %%mm6, %%mm2\n"
|
|
"pcmpeqd %%mm6, %%mm4\n"
|
|
"pcmpeqd (%2), %%mm3\n"
|
|
"pcmpeqd (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqd %%mm1, %%mm2\n"
|
|
"pcmpeqd %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpckldq %%mm4, %%mm2\n"
|
|
"punpckhdq %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
/* next */
|
|
"add $8, %0\n"
|
|
"add $8, %1\n"
|
|
"add $8, %2\n"
|
|
"add $16, %3\n"
|
|
|
|
/* central runs */
|
|
"shr $1, %4\n"
|
|
"jz 1f\n"
|
|
|
|
"0:\n"
|
|
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq -8(%1), %%mm0\n"
|
|
"movq (%1), %%mm7\n"
|
|
"movq 8(%1), %%mm1\n"
|
|
"psrlq $32, %%mm0\n"
|
|
"psllq $32, %%mm1\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $32, %%mm2\n"
|
|
"psrlq $32, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqd %%mm6, %%mm2\n"
|
|
"pcmpeqd %%mm6, %%mm4\n"
|
|
"pcmpeqd (%2), %%mm3\n"
|
|
"pcmpeqd (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqd %%mm1, %%mm2\n"
|
|
"pcmpeqd %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpckldq %%mm4, %%mm2\n"
|
|
"punpckhdq %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
/* next */
|
|
"add $8, %0\n"
|
|
"add $8, %1\n"
|
|
"add $8, %2\n"
|
|
"add $16, %3\n"
|
|
|
|
"dec %4\n"
|
|
"jnz 0b\n"
|
|
"1:\n"
|
|
|
|
/* final run */
|
|
/* set the current, current_pre, current_next registers */
|
|
"movq (%1), %%mm1\n"
|
|
"movq (%1), %%mm7\n"
|
|
"movq -8(%1), %%mm0\n"
|
|
"psrlq $32, %%mm1\n"
|
|
"psrlq $32, %%mm0\n"
|
|
"psllq $32, %%mm1\n"
|
|
"movq %%mm7, %%mm2\n"
|
|
"movq %%mm7, %%mm3\n"
|
|
"psllq $32, %%mm2\n"
|
|
"psrlq $32, %%mm3\n"
|
|
"por %%mm2, %%mm0\n"
|
|
"por %%mm3, %%mm1\n"
|
|
|
|
/* current_upper */
|
|
"movq (%0), %%mm6\n"
|
|
|
|
/* compute the upper-left pixel for dst on %%mm2 */
|
|
/* compute the upper-right pixel for dst on %%mm4 */
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"movq %%mm0, %%mm3\n"
|
|
"movq %%mm1, %%mm5\n"
|
|
"pcmpeqd %%mm6, %%mm2\n"
|
|
"pcmpeqd %%mm6, %%mm4\n"
|
|
"pcmpeqd (%2), %%mm3\n"
|
|
"pcmpeqd (%2), %%mm5\n"
|
|
"pandn %%mm2, %%mm3\n"
|
|
"pandn %%mm4, %%mm5\n"
|
|
"movq %%mm0, %%mm2\n"
|
|
"movq %%mm1, %%mm4\n"
|
|
"pcmpeqd %%mm1, %%mm2\n"
|
|
"pcmpeqd %%mm0, %%mm4\n"
|
|
"pandn %%mm3, %%mm2\n"
|
|
"pandn %%mm5, %%mm4\n"
|
|
"movq %%mm2, %%mm3\n"
|
|
"movq %%mm4, %%mm5\n"
|
|
"pand %%mm6, %%mm2\n"
|
|
"pand %%mm6, %%mm4\n"
|
|
"pandn %%mm7, %%mm3\n"
|
|
"pandn %%mm7, %%mm5\n"
|
|
"por %%mm3, %%mm2\n"
|
|
"por %%mm5, %%mm4\n"
|
|
|
|
/* set *dst */
|
|
"movq %%mm2, %%mm3\n"
|
|
"punpckldq %%mm4, %%mm2\n"
|
|
"punpckhdq %%mm4, %%mm3\n"
|
|
"movq %%mm2, (%3)\n"
|
|
"movq %%mm3, 8(%3)\n"
|
|
|
|
: "+r" (src0), "+r" (src1), "+r" (src2), "+r" (dst), "+r" (count)
|
|
:
|
|
: "cc"
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2 a row of pixels of 8 bits.
|
|
* This is a very fast MMX implementation.
|
|
* The implementation uses a combination of cmp/and/not operations to
|
|
* completly remove the need of conditional jumps. This trick give the
|
|
* major speed improvement.
|
|
* Also, using the 8 bytes MMX registers more than one pixel are computed
|
|
* at the same time.
|
|
* Before calling this function you must ensure that the currenct CPU supports
|
|
* the MMX instruction set. After calling it you must be sure to call the EMMS
|
|
* instruction before any floating-point operation.
|
|
* The pixels over the left and right borders are assumed of the same color of
|
|
* the pixels on the border.
|
|
* Note that the implementation is optimized to write data sequentially to
|
|
* maximize the bandwidth on video memory.
|
|
* \param src0 Pointer at the first pixel of the previous row.
|
|
* \param src1 Pointer at the first pixel of the current row.
|
|
* \param src2 Pointer at the first pixel of the next row.
|
|
* \param count Length in pixels of the src0, src1 and src2 rows. It must
|
|
* be at least 16 and a multiple of 8.
|
|
* \param dst0 First destination row, double length in pixels.
|
|
* \param dst1 Second destination row, double length in pixels.
|
|
*/
|
|
void scale2x_8_mmx(scale2x_uint8* dst0, scale2x_uint8* dst1, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count)
|
|
{
|
|
if (count % 8 != 0 || count < 16) {
|
|
scale2x_8_def(dst0, dst1, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_8_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_8_mmx_border(dst1, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2 a row of pixels of 16 bits.
|
|
* This function operates like scale2x_8_mmx() but for 16 bits pixels.
|
|
* \param src0 Pointer at the first pixel of the previous row.
|
|
* \param src1 Pointer at the first pixel of the current row.
|
|
* \param src2 Pointer at the first pixel of the next row.
|
|
* \param count Length in pixels of the src0, src1 and src2 rows. It must
|
|
* be at least 8 and a multiple of 4.
|
|
* \param dst0 First destination row, double length in pixels.
|
|
* \param dst1 Second destination row, double length in pixels.
|
|
*/
|
|
void scale2x_16_mmx(scale2x_uint16* dst0, scale2x_uint16* dst1, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count)
|
|
{
|
|
if (count % 4 != 0 || count < 8) {
|
|
scale2x_16_def(dst0, dst1, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_16_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_16_mmx_border(dst1, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2 a row of pixels of 32 bits.
|
|
* This function operates like scale2x_8_mmx() but for 32 bits pixels.
|
|
* \param src0 Pointer at the first pixel of the previous row.
|
|
* \param src1 Pointer at the first pixel of the current row.
|
|
* \param src2 Pointer at the first pixel of the next row.
|
|
* \param count Length in pixels of the src0, src1 and src2 rows. It must
|
|
* be at least 4 and a multiple of 2.
|
|
* \param dst0 First destination row, double length in pixels.
|
|
* \param dst1 Second destination row, double length in pixels.
|
|
*/
|
|
void scale2x_32_mmx(scale2x_uint32* dst0, scale2x_uint32* dst1, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count)
|
|
{
|
|
if (count % 2 != 0 || count < 4) {
|
|
scale2x_32_def(dst0, dst1, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_32_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_32_mmx_border(dst1, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x3 a row of pixels of 8 bits.
|
|
* This function operates like scale2x_8_mmx() but with an expansion
|
|
* factor of 2x3 instead of 2x2.
|
|
*/
|
|
void scale2x3_8_mmx(scale2x_uint8* dst0, scale2x_uint8* dst1, scale2x_uint8* dst2, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count)
|
|
{
|
|
if (count % 8 != 0 || count < 16) {
|
|
scale2x3_8_def(dst0, dst1, dst2, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_8_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_8_mmx_border(dst2, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x3 a row of pixels of 16 bits.
|
|
* This function operates like scale2x_16_mmx() but with an expansion
|
|
* factor of 2x3 instead of 2x2.
|
|
*/
|
|
void scale2x3_16_mmx(scale2x_uint16* dst0, scale2x_uint16* dst1, scale2x_uint16* dst2, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count)
|
|
{
|
|
if (count % 4 != 0 || count < 8) {
|
|
scale2x3_16_def(dst0, dst1, dst2, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_16_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_16_mmx_border(dst2, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x3 a row of pixels of 32 bits.
|
|
* This function operates like scale2x_32_mmx() but with an expansion
|
|
* factor of 2x3 instead of 2x2.
|
|
*/
|
|
void scale2x3_32_mmx(scale2x_uint32* dst0, scale2x_uint32* dst1, scale2x_uint32* dst2, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count)
|
|
{
|
|
if (count % 2 != 0 || count < 4) {
|
|
scale2x3_32_def(dst0, dst1, dst2, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_32_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_32_mmx_border(dst2, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x4 a row of pixels of 8 bits.
|
|
* This function operates like scale2x_8_mmx() but with an expansion
|
|
* factor of 2x4 instead of 2x2.
|
|
*/
|
|
void scale2x4_8_mmx(scale2x_uint8* dst0, scale2x_uint8* dst1, scale2x_uint8* dst2, scale2x_uint8* dst3, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count)
|
|
{
|
|
if (count % 8 != 0 || count < 16) {
|
|
scale2x4_8_def(dst0, dst1, dst2, dst3, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_8_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_8_def_center(dst2, src0, src1, src2, count);
|
|
scale2x_8_mmx_border(dst3, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x4 a row of pixels of 16 bits.
|
|
* This function operates like scale2x_16_mmx() but with an expansion
|
|
* factor of 2x4 instead of 2x2.
|
|
*/
|
|
void scale2x4_16_mmx(scale2x_uint16* dst0, scale2x_uint16* dst1, scale2x_uint16* dst2, scale2x_uint16* dst3, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count)
|
|
{
|
|
if (count % 4 != 0 || count < 8) {
|
|
scale2x4_16_def(dst0, dst1, dst2, dst3, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_16_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_16_def_center(dst2, src0, src1, src2, count);
|
|
scale2x_16_mmx_border(dst3, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scale by a factor of 2x4 a row of pixels of 32 bits.
|
|
* This function operates like scale2x_32_mmx() but with an expansion
|
|
* factor of 2x4 instead of 2x2.
|
|
*/
|
|
void scale2x4_32_mmx(scale2x_uint32* dst0, scale2x_uint32* dst1, scale2x_uint32* dst2, scale2x_uint32* dst3, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count)
|
|
{
|
|
if (count % 2 != 0 || count < 4) {
|
|
scale2x4_32_def(dst0, dst1, dst2, dst3, src0, src1, src2, count);
|
|
} else {
|
|
scale2x_32_mmx_border(dst0, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst1, src0, src1, src2, count);
|
|
scale2x_32_def_center(dst2, src0, src1, src2, count);
|
|
scale2x_32_mmx_border(dst3, src2, src1, src0, count);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|