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/*
* Copyright (c) 2005
* Eric Anholt. 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <liboil/liboilclasses.h>
#include <liboil/liboilfunction.h>
#include <emmintrin.h>
#include <liboil/liboilcolorspace.h>
#ifdef HAVE_I386
#define SSE_FUNCTION __attribute__((force_align_arg_pointer))
#endif
#define COMPOSITE_ADD(d,s) oil_clamp_255((d) + (s))
SSE_FUNCTION static void
composite_add_argb_sse (uint32_t *dest, const uint32_t *src, int n)
{
/* Initial operations to align the destination pointer */
for (; ((long)dest & 15) && (n > 0); n--) {
uint32_t d = *dest, s = *src++;
*dest++ = oil_argb(
COMPOSITE_ADD(oil_argb_A(d), oil_argb_A(s)),
COMPOSITE_ADD(oil_argb_R(d), oil_argb_R(s)),
COMPOSITE_ADD(oil_argb_G(d), oil_argb_G(s)),
COMPOSITE_ADD(oil_argb_B(d), oil_argb_B(s)));
}
for (; n >= 4; n -= 4) {
__m128i s;
s = _mm_loadu_si128((__m128i *)src);
*(__m128i *)dest = _mm_adds_epu8(s, *(__m128i *)dest);
src += 4;
dest += 4;
}
for (; n > 0; n--) {
uint32_t d = *dest, s = *src++;
*dest++ = oil_argb(
COMPOSITE_ADD(oil_argb_A(d), oil_argb_A(s)),
COMPOSITE_ADD(oil_argb_R(d), oil_argb_R(s)),
COMPOSITE_ADD(oil_argb_G(d), oil_argb_G(s)),
COMPOSITE_ADD(oil_argb_B(d), oil_argb_B(s)));
}
}
OIL_DEFINE_IMPL_FULL (composite_add_argb_sse, composite_add_argb,
OIL_IMPL_FLAG_SSE2);
SSE_FUNCTION static void
composite_add_argb_const_src_sse (uint32_t *dest, const uint32_t *src_1, int n)
{
__m128i s;
uint32_t val = *src_1;
/* Initial operations to align the destination pointer */
for (; ((long)dest & 15) && (n > 0); n--) {
uint32_t d = *dest;
*dest++ = oil_argb(
COMPOSITE_ADD(oil_argb_A(d), oil_argb_A(val)),
COMPOSITE_ADD(oil_argb_R(d), oil_argb_R(val)),
COMPOSITE_ADD(oil_argb_G(d), oil_argb_G(val)),
COMPOSITE_ADD(oil_argb_B(d), oil_argb_B(val)));
}
s = _mm_set1_epi32(val);
for (; n >= 4; n -= 4) {
__m128i xmm0;
xmm0 = _mm_adds_epu8(s, *(__m128i *)dest);
_mm_store_si128((__m128i *)dest, xmm0);
dest += 4;
}
for (; n > 0; n--) {
uint32_t d = *dest;
*dest++ = oil_argb(
COMPOSITE_ADD(oil_argb_A(d), oil_argb_A(val)),
COMPOSITE_ADD(oil_argb_R(d), oil_argb_R(val)),
COMPOSITE_ADD(oil_argb_G(d), oil_argb_G(val)),
COMPOSITE_ADD(oil_argb_B(d), oil_argb_B(val)));
}
}
OIL_DEFINE_IMPL_FULL (composite_add_argb_const_src_sse,
composite_add_argb_const_src, OIL_IMPL_FLAG_SSE2);
SSE_FUNCTION static void
composite_add_u8_sse (uint8_t *dest, const uint8_t *src, int n)
{
/* Initial operations to align the destination pointer */
for (; ((long)dest & 15) && (n > 0); n--) {
int x = (int)*dest + *src++;
if (x > 255)
x = 255;
*dest++ = x;
}
for (; n >= 16; n -= 16) {
__m128i d, s;
s = _mm_loadu_si128((__m128i *)src);
d = _mm_adds_epu8(s, *(__m128i *)dest);
_mm_store_si128((__m128i *)dest, d);
src += 16;
dest += 16;
}
for (; n > 0; n--) {
int x = (int)*dest + *src++;
if (x > 255)
x = 255;
*dest++ = x;
}
}
OIL_DEFINE_IMPL_FULL (composite_add_u8_sse, composite_add_u8,
OIL_IMPL_FLAG_SSE2);
SSE_FUNCTION static void
composite_add_u8_const_src_sse (uint8_t *dest, const uint8_t *src_1, int n)
{
__m128i s;
int val = *src_1;
/* Initial operations to align the destination pointer */
for (; ((long)dest & 15) && (n > 0); n--) {
int x = *dest + val;
if (x > 255)
x = 255;
*dest++ = x;
}
s = _mm_set1_epi8(val);
for (; n >= 16; n -= 16) {
__m128i d;
d = _mm_adds_epu8(*(__m128i *)dest, s);
_mm_store_si128((__m128i *)dest, d);
dest += 16;
}
for (; n > 0; n--) {
int x = *dest + val;
if (x > 255)
x = 255;
*dest++ = x;
}
}
OIL_DEFINE_IMPL_FULL (composite_add_u8_const_src_sse,
composite_add_u8_const_src, OIL_IMPL_FLAG_SSE2);
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