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/*
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* LIBOIL - Library of Optimized Inner Loops
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* Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <liboil/liboil.h>
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#include <liboil/liboilfunction.h>
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OIL_DECLARE_CLASS (argb_paint_u8);
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#define div255(x) (((x + 128) + ((x + 128)>>8))>>8)
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#define blend(x,y,a) div255((x)*(a) + (y)*(255-(a)))
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static short constants[][4] = {
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{ 255, 255, 255, 255 },
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{ 128, 128, 128, 128 }
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};
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static void
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argb_paint_u8_mmx (uint8_t *dest, uint8_t *color, uint8_t *alpha, int n)
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{
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#if !defined(__WINSCW__) && !defined(__WINS__)
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if (n<1)return;
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asm volatile (
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" pxor %%mm0, %%mm0\n"
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" movq (%1), %%mm3\n"
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" punpcklbw %%mm0, %%mm3\n"
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" movl $0, %1\n"
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"1:\n"
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" movq (%0), %%mm1\n"
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" punpcklbw %%mm0, %%mm1\n"
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" movb (%2), %%al\n"
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" je 4f\n"
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" cmpl $255, %1\n"
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" jne 2f\n"
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" movq %%mm3, %%mm2\n"
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" jmp 3f\n"
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"2:\n"
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" movd %1, %%mm2\n"
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" pshufw $0x00, %%mm2, %%mm2\n"
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" movq 0(%4), %%mm4\n"
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" psubw %%mm2, %%mm4\n"
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" pmullw %%mm1, %%mm4\n"
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" pmullw %%mm3, %%mm2\n"
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" paddw %%mm4, %%mm2\n"
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" paddw 8(%4), %%mm2\n"
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" movq %%mm2, %%mm1\n"
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" psrlw $8, %%mm1\n"
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" paddw %%mm1, %%mm2\n"
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" psrlw $8, %%mm2\n"
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"3: \n"
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" packuswb %%mm0, %%mm2\n"
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" movd %%mm2, (%0)\n"
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"4:\n"
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" add $4, %0\n"
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" add $1, %2\n"
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" decl %3\n"
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" jne 1b\n"
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" emms\n"
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: "+r" (dest), "+a" (color), "+r" (alpha), "+r" (n)
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: "r" (&constants));
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#endif
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}
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OIL_DEFINE_IMPL_FULL (argb_paint_u8_mmx, argb_paint_u8, OIL_IMPL_FLAG_MMX|OIL_IMPL_FLAG_MMXEXT);
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#ifdef __SYMBIAN32__
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OilFunctionImpl* __oil_function_impl_argb_paint_u8_mmx, argb_paint_u8() {
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return &_oil_function_impl_argb_paint_u8_mmx, argb_paint_u8;
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}
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#endif
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