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/* babl - dynamically extendable universal pixel conversion library.
* Copyright (C) 2013 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
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#if defined(USE_SSE4_1)
/* SSE 4 */
#include <smmintrin.h>
#include <stdint.h>
#include <stdlib.h>
#include "babl.h"
#include "babl-cpuaccel.h"
#include "extensions/util.h"
static inline void
conv_y8_yF (const Babl *conversion,
const uint8_t *src,
float *dst,
long samples)
{
const float factor = 1.0f / 255.0f;
const __v4sf factor_vec = {1.0f / 255.0f, 1.0f / 255.0f, 1.0f / 255.0f, 1.0f / 255.0f};
const uint32_t *s_vec;
__v4sf *d_vec;
long n = samples;
s_vec = (const uint32_t *)src;
d_vec = (__v4sf *)dst;
while (n >= 4)
{
__m128i in_val;
__v4sf out_val;
in_val = _mm_insert_epi32 ((__m128i)_mm_setzero_ps(), *s_vec++, 0);
in_val = _mm_cvtepu8_epi32 (in_val);
out_val = _mm_cvtepi32_ps (in_val) * factor_vec;
_mm_storeu_ps ((float *)d_vec++, out_val);
n -= 4;
}
src = (const uint8_t *)s_vec;
dst = (float *)d_vec;
while (n)
{
*dst++ = (float)(*src++) * factor;
n -= 1;
}
}
static void
conv_ya8_yaF (const Babl *conversion,
const uint8_t *src,
float *dst,
long samples)
{
conv_y8_yF (conversion, src, dst, samples * 2);
}
static void
conv_rgb8_rgbF (const Babl *conversion,
const uint8_t *src,
float *dst,
long samples)
{
conv_y8_yF (conversion, src, dst, samples * 3);
}
static void
conv_rgba8_rgbaF (const Babl *conversion,
const uint8_t *src,
float *dst,
long samples)
{
conv_y8_yF (conversion, src, dst, samples * 4);
}
#endif
int init (void);
int
init (void)
{
#if defined(USE_SSE4_1)
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 *rgba8_linear = babl_format_new (
babl_model ("RGBA"),
babl_type ("u8"),
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 *rgba8_gamma = babl_format_new (
babl_model ("R'G'B'A"),
babl_type ("u8"),
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 *rgb8_linear = babl_format_new (
babl_model ("RGB"),
babl_type ("u8"),
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 *rgb8_gamma = babl_format_new (
babl_model ("R'G'B'"),
babl_type ("u8"),
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 *ya8_linear = babl_format_new (
babl_model ("YA"),
babl_type ("u8"),
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 *ya8_gamma = babl_format_new (
babl_model ("Y'A"),
babl_type ("u8"),
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 *y8_linear = babl_format_new (
babl_model ("Y"),
babl_type ("u8"),
babl_component ("Y"),
NULL);
const Babl *yF_gamma = babl_format_new (
babl_model ("Y'"),
babl_type ("float"),
babl_component ("Y'"),
NULL);
const Babl *y8_gamma = babl_format_new (
babl_model ("Y'"),
babl_type ("u8"),
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))
{
CONV(rgba8, rgbaF);
CONV(rgb8, rgbF);
CONV(ya8, yaF);
CONV(y8, yF);
}
#endif
return 0;
}
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