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Diffstat (limited to 'graphics/scaler/scale2x.h')
-rw-r--r-- | graphics/scaler/scale2x.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/graphics/scaler/scale2x.h b/graphics/scaler/scale2x.h new file mode 100644 index 0000000000..2101790905 --- /dev/null +++ b/graphics/scaler/scale2x.h @@ -0,0 +1,56 @@ +/* + * 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. + */ + +#ifndef __SCALE2X_H +#define __SCALE2X_H + +#if defined(_MSC_VER) +#define __restrict__ +#endif + +typedef unsigned char scale2x_uint8; +typedef unsigned short scale2x_uint16; +typedef unsigned scale2x_uint32; + +void scale2x_8_def(scale2x_uint8* dst0, scale2x_uint8* dst1, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count); +void scale2x_16_def(scale2x_uint16* dst0, scale2x_uint16* dst1, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count); +void scale2x_32_def(scale2x_uint32* dst0, scale2x_uint32* dst1, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count); + +#if defined(__GNUC__) && defined(__i386__) + +void scale2x_8_mmx(scale2x_uint8* dst0, scale2x_uint8* dst1, const scale2x_uint8* src0, const scale2x_uint8* src1, const scale2x_uint8* src2, unsigned count); +void scale2x_16_mmx(scale2x_uint16* dst0, scale2x_uint16* dst1, const scale2x_uint16* src0, const scale2x_uint16* src1, const scale2x_uint16* src2, unsigned count); +void scale2x_32_mmx(scale2x_uint32* dst0, scale2x_uint32* dst1, const scale2x_uint32* src0, const scale2x_uint32* src1, const scale2x_uint32* src2, unsigned count); + +/** + * End the use of the MMX instructions. + * This function must be called before using any floating-point operations. + */ +static inline void scale2x_mmx_emms(void) +{ + __asm__ __volatile__ ( + "emms" + ); +} + +#endif + +#endif + |