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/* babl - dynamically extendable universal pixel conversion library.
* Copyright (C) 2015 Daniel Sabo
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see
* <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#if defined(USE_SSE4_1) && defined(USE_F16C) && defined(ARCH_X86_64)
#include <immintrin.h>
#include <stdint.h>
#include <stdlib.h>
#include "babl.h"
#include "babl-cpuaccel.h"
#include "extensions/util.h"
static inline void
conv_yHalf_yF (const Babl *conversion,const uint16_t *src, float *dst, long samples)
{
const uint64_t *s_vec;
__v4sf *d_vec;
long n = samples;
s_vec = (const uint64_t *)src;
d_vec = (__v4sf *)dst;
while (n >= 4)
{
__m128i in_val = _mm_insert_epi64((__m128i)_mm_setzero_ps(), *s_vec++, 0);
__v4sf out_val = (__v4sf)_mm_cvtph_ps(in_val);
_mm_storeu_ps((float *)d_vec++, out_val);
n -= 4;
}
src = (const uint16_t *)s_vec;
dst = (float *)d_vec;
while (n)
{
__m128i in_val = _mm_insert_epi16((__m128i)_mm_setzero_ps(), *src++, 0);
__v4sf out_val = (__v4sf)_mm_cvtph_ps(in_val);
_mm_store_ss(dst++, out_val);
n -= 1;
}
}
static void
conv_yaHalf_yaF (const Babl *conversion,const uint16_t *src, float *dst, long samples)
{
conv_yHalf_yF (conversion, src, dst, samples * 2);
}
static void
conv_rgbHalf_rgbF (const Babl *conversion,const uint16_t *src, float *dst, long samples)
{
conv_yHalf_yF (conversion, src, dst, samples * 3);
}
static void
conv_rgbaHalf_rgbaF (const Babl *conversion,const uint16_t *src, float *dst, long samples)
{
conv_yHalf_yF (conversion, src, dst, samples * 4);
}
static inline void
conv_yF_yHalf (const Babl *conversion,const float *src, uint16_t *dst, long samples)
{
const __v4sf *s_vec;
uint64_t *d_vec;
long n = samples;
s_vec = (const __v4sf *)src;
d_vec = (uint64_t *)dst;
while (n >= 4)
{
__m128 in_val = _mm_loadu_ps((float *)s_vec++);
__m128i out_val = _mm_cvtps_ph(in_val, _MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC);
_mm_storel_epi64((__m128i *)d_vec++, out_val);
n -= 4;
}
src = (const float *)s_vec;
dst = (uint16_t *)d_vec;
while (n)
{
__m128 in_val = _mm_load_ss(src++);
__m128i out_val = _mm_cvtps_ph(in_val, _MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC);
*dst++ = _mm_extract_epi16(out_val, 0);
n -= 1;
}
}
static void
conv_yaF_yaHalf (const Babl *conversion,const float *src, uint16_t *dst, long samples)
{
conv_yF_yHalf (conversion, src, dst, samples * 2);
}
static void
conv_rgbF_rgbHalf (const Babl *conversion,const float *src, uint16_t *dst, long samples)
{
conv_yF_yHalf (conversion, src, dst, samples * 3);
}
static void
conv_rgbaF_rgbaHalf (const Babl *conversion,const float *src, uint16_t *dst, long samples)
{
conv_yF_yHalf (conversion, src, dst, samples * 4);
}
#endif /* defined(USE_SSE4_1) && defined(USE_F16C) && defined(ARCH_X86_64) */
int init (void);
int
init (void)
{
#if defined(USE_SSE4_1) && defined(USE_F16C) && defined(ARCH_X86_64)
const Babl *rgbaF_linear = babl_format_new (
babl_model ("RGBA"),
babl_type ("float"),
babl_component ("R"),
babl_component ("G"),
babl_component ("B"),
babl_component ("A"),
NULL);
const Babl *rgbaHalf_linear = babl_format_new (
babl_model ("RGBA"),
babl_type ("half"),
babl_component ("R"),
babl_component ("G"),
babl_component ("B"),
babl_component ("A"),
NULL);
const Babl *rgbaF_gamma = babl_format_new (
babl_model ("R'G'B'A"),
babl_type ("float"),
babl_component ("R'"),
babl_component ("G'"),
babl_component ("B'"),
babl_component ("A"),
NULL);
const Babl *rgbaHalf_gamma = babl_format_new (
babl_model ("R'G'B'A"),
babl_type ("half"),
babl_component ("R'"),
babl_component ("G'"),
babl_component ("B'"),
babl_component ("A"),
NULL);
const Babl *rgbF_linear = babl_format_new (
babl_model ("RGB"),
babl_type ("float"),
babl_component ("R"),
babl_component ("G"),
babl_component ("B"),
NULL);
const Babl *rgbHalf_linear = babl_format_new (
babl_model ("RGB"),
babl_type ("half"),
babl_component ("R"),
babl_component ("G"),
babl_component ("B"),
NULL);
const Babl *rgbF_gamma = babl_format_new (
babl_model ("R'G'B'"),
babl_type ("float"),
babl_component ("R'"),
babl_component ("G'"),
babl_component ("B'"),
NULL);
const Babl *rgbHalf_gamma = babl_format_new (
babl_model ("R'G'B'"),
babl_type ("half"),
babl_component ("R'"),
babl_component ("G'"),
babl_component ("B'"),
NULL);
const Babl *yaF_linear = babl_format_new (
babl_model ("YA"),
babl_type ("float"),
babl_component ("Y"),
babl_component ("A"),
NULL);
const Babl *yaHalf_linear = babl_format_new (
babl_model ("YA"),
babl_type ("half"),
babl_component ("Y"),
babl_component ("A"),
NULL);
const Babl *yaF_gamma = babl_format_new (
babl_model ("Y'A"),
babl_type ("float"),
babl_component ("Y'"),
babl_component ("A"),
NULL);
const Babl *yaHalf_gamma = babl_format_new (
babl_model ("Y'A"),
babl_type ("half"),
babl_component ("Y'"),
babl_component ("A"),
NULL);
const Babl *yF_linear = babl_format_new (
babl_model ("Y"),
babl_type ("float"),
babl_component ("Y"),
NULL);
const Babl *yHalf_linear = babl_format_new (
babl_model ("Y"),
babl_type ("half"),
babl_component ("Y"),
NULL);
const Babl *yF_gamma = babl_format_new (
babl_model ("Y'"),
babl_type ("float"),
babl_component ("Y'"),
NULL);
const Babl *yHalf_gamma = babl_format_new (
babl_model ("Y'"),
babl_type ("half"),
babl_component ("Y'"),
NULL);
#define CONV(src, dst) \
{ \
babl_conversion_new (src ## _linear, dst ## _linear, "linear", conv_ ## src ## _ ## dst, NULL); \
babl_conversion_new (src ## _gamma, dst ## _gamma, "linear", conv_ ## src ## _ ## dst, NULL); \
}
if ((babl_cpu_accel_get_support () & BABL_CPU_ACCEL_X86_SSE4_1) &&
(babl_cpu_accel_get_support () & BABL_CPU_ACCEL_X86_F16C))
{
CONV(rgbaHalf, rgbaF);
CONV(rgbHalf, rgbF);
CONV(yaHalf, yaF);
CONV(yHalf, yF);
CONV(rgbaF, rgbaHalf);
CONV(rgbF, rgbHalf);
CONV(yaF, yaHalf);
CONV(yF, yHalf);
}
#endif /* defined(USE_SSE4_1) && defined(USE_F16C) && defined(ARCH_X86_64) */
return 0;
}
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