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