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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 |
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33 #include <liboil/liboil.h> |
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34 #include <liboil/liboilfunction.h> |
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35 |
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36 OIL_DECLARE_CLASS (argb_paint_u8); |
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37 |
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38 |
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39 #define div255(x) (((x + 128) + ((x + 128)>>8))>>8) |
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40 #define blend(x,y,a) div255((x)*(a) + (y)*(255-(a))) |
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41 |
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42 static short constants[][4] = { |
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43 { 255, 255, 255, 255 }, |
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44 { 128, 128, 128, 128 } |
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45 }; |
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46 |
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47 static void |
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48 argb_paint_u8_mmx (uint8_t *dest, uint8_t *color, uint8_t *alpha, int n) |
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49 { |
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50 #if !defined(__WINSCW__) && !defined(__WINS__) |
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51 if (n<1)return; |
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52 asm volatile ( |
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53 " pxor %%mm0, %%mm0\n" |
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54 " movq (%1), %%mm3\n" |
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55 " punpcklbw %%mm0, %%mm3\n" |
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56 " movl $0, %1\n" |
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57 "1:\n" |
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58 " movq (%0), %%mm1\n" |
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59 " punpcklbw %%mm0, %%mm1\n" |
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60 " movb (%2), %%al\n" |
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61 " je 4f\n" |
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62 " cmpl $255, %1\n" |
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63 " jne 2f\n" |
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64 " movq %%mm3, %%mm2\n" |
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65 " jmp 3f\n" |
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66 "2:\n" |
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67 " movd %1, %%mm2\n" |
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68 " pshufw $0x00, %%mm2, %%mm2\n" |
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69 " movq 0(%4), %%mm4\n" |
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70 " psubw %%mm2, %%mm4\n" |
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71 " pmullw %%mm1, %%mm4\n" |
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72 " pmullw %%mm3, %%mm2\n" |
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73 " paddw %%mm4, %%mm2\n" |
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74 " paddw 8(%4), %%mm2\n" |
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75 " movq %%mm2, %%mm1\n" |
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76 " psrlw $8, %%mm1\n" |
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77 " paddw %%mm1, %%mm2\n" |
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78 " psrlw $8, %%mm2\n" |
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79 "3: \n" |
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80 " packuswb %%mm0, %%mm2\n" |
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81 " movd %%mm2, (%0)\n" |
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82 "4:\n" |
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83 " add $4, %0\n" |
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84 " add $1, %2\n" |
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85 " decl %3\n" |
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86 " jne 1b\n" |
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87 " emms\n" |
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88 : "+r" (dest), "+a" (color), "+r" (alpha), "+r" (n) |
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89 : "r" (&constants)); |
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90 #endif |
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91 } |
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92 OIL_DEFINE_IMPL_FULL (argb_paint_u8_mmx, argb_paint_u8, OIL_IMPL_FLAG_MMX|OIL_IMPL_FLAG_MMXEXT); |
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93 |
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94 |
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95 |
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96 |
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97 #ifdef __SYMBIAN32__ |
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98 |
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99 OilFunctionImpl* __oil_function_impl_argb_paint_u8_mmx, argb_paint_u8() { |
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100 return &_oil_function_impl_argb_paint_u8_mmx, argb_paint_u8; |
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101 } |
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102 #endif |
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103 |