+++ /dev/null
-/* babl - dynamically extendable universal pixel conversion library.
- * Copyright (C) 2005-2008, Øyvind Kolås and others.
- *
- * SSE optimized conversion routines.
- * Copyright (C) 2008, Jan Heller.
- *
- * 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(__GNUC__) && (__GNUC__ >= 4) && defined(USE_SSE) && defined(USE_MMX)
-
-#include <xmmintrin.h>
-
-#include <stdint.h>
-#include <stdlib.h>
-
-#include "babl.h"
-#include "babl-cpuaccel.h"
-#include "extensions/util.h"
-
-#define INLINE inline
-
-typedef float g4float __attribute__ ((vector_size (4*sizeof(float))));
-typedef int g2int __attribute__ ((vector_size (2*sizeof(int))));
-
-#define g4float(a,b,c,d) ((g4float){a,b,c,d})
-#define g4float_all(val) g4float(val,val,val,val)
-#define g4float_zero g4float_all(0.0)
-#define g4float_ff g4float_all(255.0)
-
-#define g4float_max(a,b) _mm_max_ps(a, b)
-#define g4float_min(a,b) _mm_min_ps(a, b)
-#define g4float_cvt2pi(a) _mm_cvtps_pi32(a)
-#define g4float_movhl(a,b) _mm_movehl_ps(a, b)
-#define g4float_emms _mm_empty
-
-
-static INLINE long
-conv_rgbaF_linear_rgb8_linear (unsigned char *src,
- unsigned char *dst,
- long samples)
-{
- long n = samples;
-
- if ((intptr_t) src & 0xF)
- {
- // nonaligned buffers, we have to use fallback x87 code
- float *fsrc = (float *) src;
- int v;
-
- while (n--)
- {
- v = rint (*fsrc++ * 255.0);
- *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
-
- v = rint (*fsrc++ * 255.0);
- *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
-
- v = rint (*fsrc++ * 255.0);
- *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
-
- fsrc++;
- }
- }
- else
- {
- // all is well, buffers are SSE compatible
- g4float *g4src = (g4float *) src;
- g4float v;
-
- union {
- g2int si;
- unsigned char c[8];
- } u;
-
- while (n--)
- {
- v = *g4src++ * g4float_ff;
- v = g4float_min(v, g4float_ff);
- v = g4float_max(v, g4float_zero);
- u.si = g4float_cvt2pi (v);
- *dst++ = u.c[0];
- *dst++ = u.c[4];
- v = g4float_movhl (v, v);
- u.si = g4float_cvt2pi (v);
- *dst++ = u.c[0];
- }
-
- g4float_emms ();
- }
-
- return samples;
-}
-
-
-static INLINE long
-conv_rgbaF_linear_rgba8_linear (unsigned char *src,
- unsigned char *dst,
- long samples)
-{
- long n = samples;
- if ((intptr_t) src & 0xF)
- {
- // nonaligned buffers, we have to use fallback x87 code
- float *fsrc = (float *) src;
- int v;
-
- while (n--)
- {
- v = rint (*fsrc++ * 255.0);
- *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
-
- v = rint (*fsrc++ * 255.0);
- *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
-
- v = rint (*fsrc++ * 255.0);
- *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
-
- v = rint (*fsrc++ * 255.0);
- *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
- }
- }
- else
- {
- // all is well, buffers are SSE compatible
- g4float *g4src = (g4float *) src;
- g4float v;
-
- union {
- g2int si;
- unsigned char c[8];
- } u;
-
- while (n--)
- {
- v = *g4src++ * g4float_ff;
- v = g4float_min(v, g4float_ff);
- v = g4float_max(v, g4float_zero);
- u.si = g4float_cvt2pi (v);
- *dst++ = u.c[0];
- *dst++ = u.c[4];
- v = g4float_movhl (v, v);
- u.si = g4float_cvt2pi (v);
- *dst++ = u.c[0];
- *dst++ = u.c[4];
- }
-
- g4float_emms ();
- }
-
- return samples;
-}
-
-#define conv_rgbaF_gamma_rgba8_gamma conv_rgbaF_linear_rgba8_linear
-#define conv_rgbaF_gamma_rgb8_gamma conv_rgbaF_linear_rgb8_linear
-
-
-#endif
-
-#define o(src, dst) \
- babl_conversion_new (src, dst, "linear", conv_ ## src ## _ ## dst, NULL)
-
-int init (void);
-
-int
-init (void)
-{
-#if defined(__GNUC__) && (__GNUC__ >= 4) && defined(USE_SSE) && defined(USE_MMX)
-
- 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 *rgb8_linear = babl_format_new (
- babl_model ("RGB"),
- babl_type ("u8"),
- babl_component ("R"),
- babl_component ("G"),
- babl_component ("B"),
- 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 *rgb8_gamma = babl_format_new (
- babl_model ("R'G'B'"),
- babl_type ("u8"),
- babl_component ("R'"),
- babl_component ("G'"),
- babl_component ("B'"),
- NULL);
-
- if ((babl_cpu_accel_get_support () & BABL_CPU_ACCEL_X86_MMX) &&
- (babl_cpu_accel_get_support () & BABL_CPU_ACCEL_X86_SSE) &&
- !(babl_cpu_accel_get_support () & BABL_CPU_ACCEL_X86_64))
- {
- o (rgbaF_linear, rgb8_linear);
- o (rgbaF_linear, rgba8_linear);
- o (rgbaF_gamma, rgb8_gamma);
- o (rgbaF_gamma, rgba8_gamma);
- }
-
-#endif
-
- return 0;
-}
-
projects / babl.git / commitdiff