sl@0: /*
sl@0:  * LIBOIL - Library of Optimized Inner Loops
sl@0:  * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
sl@0:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
sl@0:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
sl@0:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
sl@0:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
sl@0:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
sl@0:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
sl@0:  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
sl@0:  * POSSIBILITY OF SUCH DAMAGE.
sl@0:  */
sl@0: //Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 
sl@0: 
sl@0: #ifdef HAVE_CONFIG_H
sl@0: #include "config.h"
sl@0: #endif
sl@0: #include <liboil/liboilfunction.h>
sl@0: #include <liboil/liboilclasses.h>
sl@0: 
sl@0: 
sl@0: /* suboptimal */
sl@0: static void
sl@0: conv_f32_s16_3dnow (float *dst, int dst_stride, int16_t * src, int src_stride,
sl@0:     int n)
sl@0: {
sl@0: #if !defined(__WINSCW__) && !defined(__WINS__)      
sl@0:   int i;
sl@0: 
sl@0:   for (i = 0; i < n; i++) {
sl@0:     asm volatile ("  movswl 0(%0), %%eax \n"
sl@0:         "  movd %%eax, %%mm0 \n"
sl@0:         "  pi2fd %%mm0, %%mm0 \n" "  movd %%mm0, 0(%1) \n"
sl@0:         ::"r" (src), "r" (dst)
sl@0:         :"eax");
sl@0: 
sl@0:     dst = OIL_OFFSET (dst, dst_stride);
sl@0:     src = OIL_OFFSET (src, src_stride);
sl@0:   }
sl@0:   asm volatile ("emms");
sl@0: #endif
sl@0: }
sl@0: 
sl@0: OIL_DEFINE_IMPL_FULL (conv_f32_s16_3dnow, conv_f32_s16, OIL_IMPL_FLAG_MMX|OIL_IMPL_FLAG_3DNOW);
sl@0: 
sl@0: #ifdef ENABLE_BROKEN_IMPLS
sl@0: /* suboptimal */
sl@0: /* This appears to fail because of differences in rounding of half
sl@0:  * integers. */
sl@0: static void
sl@0: conv_s32_f32_3dnow (int32_t * dst, int dst_stride, float *src, int src_stride,
sl@0:     int n)
sl@0: {
sl@0:   int i;
sl@0:   const float constants[][2] = {
sl@0:     { 0.5,  0.5},
sl@0:     {-1.0, -1.0}
sl@0:   };
sl@0: 
sl@0:   for (i = 0; i < n; i++) {
sl@0:     asm volatile (
sl@0:         "  movq 0(%0), %%mm0 \n"
sl@0:         "  pxor %%mm1, %%mm1 \n"
sl@0:         "  pfcmpgt %%mm0, %%mm1 \n"
sl@0:         "  movq %%mm0, %%mm2 \n"
sl@0:         "  pfadd 0(%2), %%mm0 \n"
sl@0:         "  pfcmpeq %%mm0, %%mm2 \n"
sl@0:         "  pandn %%mm1, %%mm2 \n"
sl@0:         "  pf2id %%mm0, %%mm0 \n"
sl@0:         "  paddd %%mm2, %%mm0 \n"
sl@0:         "  movd %%mm0, 0(%1) \n"
sl@0:         :
sl@0:         :"r" (src), "r" (dst), "r" (constants)
sl@0:         );
sl@0: 
sl@0:     dst = OIL_OFFSET (dst, dst_stride);
sl@0:     src = OIL_OFFSET (src, src_stride);
sl@0:   }
sl@0:   asm volatile ("emms");
sl@0: }
sl@0: 
sl@0: OIL_DEFINE_IMPL_FULL (conv_s32_f32_3dnow, conv_s32_f32, OIL_IMPL_FLAG_MMX|OIL_IMPL_FLAG_3DNOW);
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_conv_f32_s16_3dnow, conv_f32_s16() {
sl@0: 		return &_oil_function_impl_conv_f32_s16_3dnow, conv_f32_s16;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_conv_s32_f32_3dnow, conv_s32_f32() {
sl@0: 		return &_oil_function_impl_conv_s32_f32_3dnow, conv_s32_f32;
sl@0: }
sl@0: #endif
sl@0: