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Diffstat (limited to 'common/scaler/scale3x.cpp')
| -rw-r--r-- | common/scaler/scale3x.cpp | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/common/scaler/scale3x.cpp b/common/scaler/scale3x.cpp deleted file mode 100644 index 22366d7cdb..0000000000 --- a/common/scaler/scale3x.cpp +++ /dev/null @@ -1,238 +0,0 @@ -/* - * This file is part of the Scale2x project. - * - * Copyright (C) 2001, 2002, 2003, 2004 Andrea Mazzoleni - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -/* - * This file contains a C and MMX implementation of the Scale2x effect. - * - * You can find an high level description of the effect at : - * - * http://scale2x.sourceforge.net/ - * - * Alternatively at the previous license terms, you are allowed to use this - * code in your program with these conditions: - * - the program is not used in commercial activities. - * - the whole source code of the program is released with the binary. - * - derivative works of the program are allowed. - */ - -#if HAVE_CONFIG_H -#include <config.h> -#endif - -#include "common/scaler/intern.h" - -#include "scale3x.h" - -#include <assert.h> - -/***************************************************************************/ -/* Scale3x C implementation */ - -static inline void scale3x_8_def_border(scale3x_uint8* __restrict__ dst, const scale3x_uint8* __restrict__ src0, const scale3x_uint8* __restrict__ src1, const scale3x_uint8* __restrict__ src2, unsigned count) -{ - /* central pixels */ - while (count) { - if (src0[0] != src2[0] && src1[-1] != src1[1]) { - dst[0] = src1[-1] == src0[0] ? src1[-1] : src1[0]; - dst[1] = (src1[-1] == src0[0] && src1[0] != src0[1]) || (src1[1] == src0[0] && src1[0] != src0[-1]) ? src0[0] : src1[0]; - dst[2] = src1[1] == src0[0] ? src1[1] : src1[0]; - } else { - dst[0] = src1[0]; - dst[1] = src1[0]; - dst[2] = src1[0]; - } - - ++src0; - ++src1; - ++src2; - dst += 3; - --count; - } -} - -static inline void scale3x_8_def_center(scale3x_uint8* __restrict__ dst, const scale3x_uint8* __restrict__ src0, const scale3x_uint8* __restrict__ src1, const scale3x_uint8* __restrict__ src2, unsigned count) -{ - /* central pixels */ - 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[0]; - dst[2] = (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]; - dst[2] = src1[0]; - } - - ++src0; - ++src1; - ++src2; - dst += 3; - --count; - } -} - -static inline void scale3x_16_def_border(scale3x_uint16* __restrict__ dst, const scale3x_uint16* __restrict__ src0, const scale3x_uint16* __restrict__ src1, const scale3x_uint16* __restrict__ src2, unsigned count) -{ - /* central pixels */ - while (count) { - if (src0[0] != src2[0] && src1[-1] != src1[1]) { - dst[0] = src1[-1] == src0[0] ? src1[-1] : src1[0]; - dst[1] = (src1[-1] == src0[0] && src1[0] != src0[1]) || (src1[1] == src0[0] && src1[0] != src0[-1]) ? src0[0] : src1[0]; - dst[2] = src1[1] == src0[0] ? src1[1] : src1[0]; - } else { - dst[0] = src1[0]; - dst[1] = src1[0]; - dst[2] = src1[0]; - } - - ++src0; - ++src1; - ++src2; - dst += 3; - --count; - } -} - -static inline void scale3x_16_def_center(scale3x_uint16* __restrict__ dst, const scale3x_uint16* __restrict__ src0, const scale3x_uint16* __restrict__ src1, const scale3x_uint16* __restrict__ src2, unsigned count) -{ - /* central pixels */ - 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[0]; - dst[2] = (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]; - dst[2] = src1[0]; - } - - ++src0; - ++src1; - ++src2; - dst += 3; - --count; - } -} - -static inline void scale3x_32_def_border(scale3x_uint32* __restrict__ dst, const scale3x_uint32* __restrict__ src0, const scale3x_uint32* __restrict__ src1, const scale3x_uint32* __restrict__ src2, unsigned count) -{ - /* central pixels */ - while (count) { - if (src0[0] != src2[0] && src1[-1] != src1[1]) { - dst[0] = src1[-1] == src0[0] ? src1[-1] : src1[0]; - dst[1] = (src1[-1] == src0[0] && src1[0] != src0[1]) || (src1[1] == src0[0] && src1[0] != src0[-1]) ? src0[0] : src1[0]; - dst[2] = src1[1] == src0[0] ? src1[1] : src1[0]; - } else { - dst[0] = src1[0]; - dst[1] = src1[0]; - dst[2] = src1[0]; - } - - ++src0; - ++src1; - ++src2; - dst += 3; - --count; - } -} - -static inline void scale3x_32_def_center(scale3x_uint32* __restrict__ dst, const scale3x_uint32* __restrict__ src0, const scale3x_uint32* __restrict__ src1, const scale3x_uint32* __restrict__ src2, unsigned count) -{ - /* central pixels */ - 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[0]; - dst[2] = (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]; - dst[2] = src1[0]; - } - - ++src0; - ++src1; - ++src2; - dst += 3; - --count; - } -} - -/** - * Scale by a factor of 3 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. - * \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, triple length in pixels. - * \param dst1 Second destination row, triple length in pixels. - * \param dst2 Third destination row, triple length in pixels. - */ -void scale3x_8_def(scale3x_uint8* dst0, scale3x_uint8* dst1, scale3x_uint8* dst2, const scale3x_uint8* src0, const scale3x_uint8* src1, const scale3x_uint8* src2, unsigned count) -{ - scale3x_8_def_border(dst0, src0, src1, src2, count); - scale3x_8_def_center(dst1, src0, src1, src2, count); - scale3x_8_def_border(dst2, src2, src1, src0, count); -} - -/** - * Scale by a factor of 3 a row of pixels of 16 bits. - * This function operates like scale3x_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, triple length in pixels. - * \param dst1 Second destination row, triple length in pixels. - * \param dst2 Third destination row, triple length in pixels. - */ -void scale3x_16_def(scale3x_uint16* dst0, scale3x_uint16* dst1, scale3x_uint16* dst2, const scale3x_uint16* src0, const scale3x_uint16* src1, const scale3x_uint16* src2, unsigned count) -{ - scale3x_16_def_border(dst0, src0, src1, src2, count); - scale3x_16_def_center(dst1, src0, src1, src2, count); - scale3x_16_def_border(dst2, src2, src1, src0, count); -} - -/** - * Scale by a factor of 3 a row of pixels of 32 bits. - * This function operates like scale3x_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, triple length in pixels. - * \param dst1 Second destination row, triple length in pixels. - * \param dst2 Third destination row, triple length in pixels. - */ -void scale3x_32_def(scale3x_uint32* dst0, scale3x_uint32* dst1, scale3x_uint32* dst2, const scale3x_uint32* src0, const scale3x_uint32* src1, const scale3x_uint32* src2, unsigned count) -{ - scale3x_32_def_border(dst0, src0, src1, src2, count); - scale3x_32_def_center(dst1, src0, src1, src2, count); - scale3x_32_def_border(dst2, src2, src1, src0, count); -} - |