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1 /* |
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2 * LIBOIL - Library of Optimized Inner Loops |
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3 * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org> |
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4 * All rights reserved. |
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5 * |
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6 * Redistribution and use in source and binary forms, with or without |
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7 * modification, are permitted provided that the following conditions |
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8 * are met: |
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9 * 1. Redistributions of source code must retain the above copyright |
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10 * notice, this list of conditions and the following disclaimer. |
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11 * 2. Redistributions in binary form must reproduce the above copyright |
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12 * notice, this list of conditions and the following disclaimer in the |
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13 * documentation and/or other materials provided with the distribution. |
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14 * |
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15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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25 * POSSIBILITY OF SUCH DAMAGE. |
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26 */ |
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27 //Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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28 |
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29 #ifdef HAVE_CONFIG_H |
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30 #include "config.h" |
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31 #endif |
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32 #include <liboil/liboilfunction.h> |
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33 #include <liboil/liboilclasses.h> |
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34 |
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35 |
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36 /* suboptimal */ |
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37 static void |
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38 conv_f32_s16_3dnow (float *dst, int dst_stride, int16_t * src, int src_stride, |
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39 int n) |
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40 { |
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41 #if !defined(__WINSCW__) && !defined(__WINS__) |
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42 int i; |
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43 |
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44 for (i = 0; i < n; i++) { |
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45 asm volatile (" movswl 0(%0), %%eax \n" |
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46 " movd %%eax, %%mm0 \n" |
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47 " pi2fd %%mm0, %%mm0 \n" " movd %%mm0, 0(%1) \n" |
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48 ::"r" (src), "r" (dst) |
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49 :"eax"); |
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50 |
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51 dst = OIL_OFFSET (dst, dst_stride); |
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52 src = OIL_OFFSET (src, src_stride); |
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53 } |
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54 asm volatile ("emms"); |
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55 #endif |
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56 } |
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57 |
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58 OIL_DEFINE_IMPL_FULL (conv_f32_s16_3dnow, conv_f32_s16, OIL_IMPL_FLAG_MMX|OIL_IMPL_FLAG_3DNOW); |
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59 |
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60 #ifdef ENABLE_BROKEN_IMPLS |
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61 /* suboptimal */ |
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62 /* This appears to fail because of differences in rounding of half |
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63 * integers. */ |
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64 static void |
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65 conv_s32_f32_3dnow (int32_t * dst, int dst_stride, float *src, int src_stride, |
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66 int n) |
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67 { |
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68 int i; |
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69 const float constants[][2] = { |
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70 { 0.5, 0.5}, |
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71 {-1.0, -1.0} |
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72 }; |
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73 |
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74 for (i = 0; i < n; i++) { |
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75 asm volatile ( |
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76 " movq 0(%0), %%mm0 \n" |
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77 " pxor %%mm1, %%mm1 \n" |
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78 " pfcmpgt %%mm0, %%mm1 \n" |
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79 " movq %%mm0, %%mm2 \n" |
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80 " pfadd 0(%2), %%mm0 \n" |
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81 " pfcmpeq %%mm0, %%mm2 \n" |
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82 " pandn %%mm1, %%mm2 \n" |
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83 " pf2id %%mm0, %%mm0 \n" |
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84 " paddd %%mm2, %%mm0 \n" |
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85 " movd %%mm0, 0(%1) \n" |
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86 : |
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87 :"r" (src), "r" (dst), "r" (constants) |
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88 ); |
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89 |
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90 dst = OIL_OFFSET (dst, dst_stride); |
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91 src = OIL_OFFSET (src, src_stride); |
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92 } |
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93 asm volatile ("emms"); |
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94 } |
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95 |
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96 OIL_DEFINE_IMPL_FULL (conv_s32_f32_3dnow, conv_s32_f32, OIL_IMPL_FLAG_MMX|OIL_IMPL_FLAG_3DNOW); |
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97 #endif |
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98 |
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99 |
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100 |
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101 #ifdef __SYMBIAN32__ |
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102 |
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103 OilFunctionImpl* __oil_function_impl_conv_f32_s16_3dnow, conv_f32_s16() { |
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104 return &_oil_function_impl_conv_f32_s16_3dnow, conv_f32_s16; |
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105 } |
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106 #endif |
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107 |
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108 #ifdef __SYMBIAN32__ |
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109 |
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110 OilFunctionImpl* __oil_function_impl_conv_s32_f32_3dnow, conv_s32_f32() { |
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111 return &_oil_function_impl_conv_s32_f32_3dnow, conv_s32_f32; |
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112 } |
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113 #endif |
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114 |