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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpoperationnormal-sse2.c
* Copyright (C) 2013 Daniel Sabo
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl-plugin.h>
#include "operations/operations-types.h"
#include "gimpoperationnormal.h"
#if COMPILE_SSE2_INTRINISICS
/* SSE2 */
#include <emmintrin.h>
gboolean
gimp_operation_normal_process_sse2 (GeglOperation *op,
void *in_p,
void *layer_p,
void *mask_p,
void *out_p,
glong samples,
const GeglRectangle *roi,
gint level)
{
/* check alignment */
if ((((uintptr_t)in_p) | ((uintptr_t)layer_p) | ((uintptr_t)out_p)) & 0x0F)
{
return gimp_operation_normal_process (op,
in_p, layer_p, mask_p, out_p,
samples, roi, level);
}
else
{
GimpOperationLayerMode *layer_mode = (gpointer) op;
gfloat opacity = layer_mode->opacity;
gfloat *mask = mask_p;
const __v4sf *v_in = (const __v4sf*) in_p;
const __v4sf *v_layer = (const __v4sf*) layer_p;
__v4sf *v_out = ( __v4sf*) out_p;
const __v4sf one = _mm_set1_ps (1.0f);
const __v4sf v_opacity = _mm_set1_ps (opacity);
switch (layer_mode->composite_mode)
{
case GIMP_LAYER_COMPOSITE_UNION:
case GIMP_LAYER_COMPOSITE_AUTO:
while (samples--)
{
__v4sf rgba_in, rgba_layer, alpha;
rgba_in = *v_in++;
rgba_layer = *v_layer++;
/* expand alpha */
alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_layer,
_MM_SHUFFLE (3, 3, 3, 3));
if (mask)
{
__v4sf mask_alpha;
/* multiply layer's alpha by the mask */
mask_alpha = _mm_set1_ps (*mask++);
alpha = alpha * mask_alpha;
}
alpha = alpha * v_opacity;
if (_mm_ucomigt_ss (alpha, _mm_setzero_ps ()))
{
__v4sf dst_alpha, a_term, out_pixel, out_alpha, out_pixel_rbaa;
/* expand alpha */
dst_alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_in,
_MM_SHUFFLE (3, 3, 3, 3));
/* a_term = dst_a * (1.0 - src_a) */
a_term = dst_alpha * (one - alpha);
/* out(color) = src * src_a + dst * a_term */
out_pixel = rgba_layer * alpha + rgba_in * a_term;
/* out(alpha) = 1.0 * src_a + 1.0 * a_term */
out_alpha = alpha + a_term;
/* un-premultiply */
out_pixel = out_pixel / out_alpha;
/* swap in the real alpha */
out_pixel_rbaa = _mm_shuffle_ps (out_pixel, out_alpha, _MM_SHUFFLE (3, 3, 2, 0));
out_pixel = _mm_shuffle_ps (out_pixel, out_pixel_rbaa, _MM_SHUFFLE (2, 1, 1, 0));
*v_out++ = out_pixel;
}
else
{
*v_out++ = rgba_in;
}
}
break;
case GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP:
while (samples--)
{
__v4sf rgba_in, rgba_layer, alpha;
rgba_in = *v_in++;
rgba_layer = *v_layer++;
/* expand alpha */
alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_layer,
_MM_SHUFFLE (3, 3, 3, 3));
if (mask)
{
__v4sf mask_alpha;
/* multiply layer's alpha by the mask */
mask_alpha = _mm_set1_ps (*mask++);
alpha = alpha * mask_alpha;
}
alpha = alpha * v_opacity;
if (_mm_ucomigt_ss (alpha, _mm_setzero_ps ()))
{
__v4sf dst_alpha, out_pixel, out_pixel_rbaa;
/* expand alpha */
dst_alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_in,
_MM_SHUFFLE (3, 3, 3, 3));
/* out(color) = dst * (1 - src_a) + src * src_a */
out_pixel = rgba_in + (rgba_layer - rgba_in) * alpha;
/* swap in the real alpha */
out_pixel_rbaa = _mm_shuffle_ps (out_pixel, dst_alpha, _MM_SHUFFLE (3, 3, 2, 0));
out_pixel = _mm_shuffle_ps (out_pixel, out_pixel_rbaa, _MM_SHUFFLE (2, 1, 1, 0));
*v_out++ = out_pixel;
}
else
{
*v_out++ = rgba_in;
}
}
break;
case GIMP_LAYER_COMPOSITE_CLIP_TO_LAYER:
while (samples--)
{
__v4sf rgba_in, rgba_layer, alpha;
__v4sf out_pixel, out_pixel_rbaa;
rgba_in = *v_in++;
rgba_layer = *v_layer++;
/* expand alpha */
alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_layer,
_MM_SHUFFLE (3, 3, 3, 3));
if (mask)
{
__v4sf mask_alpha;
/* multiply layer's alpha by the mask */
mask_alpha = _mm_set1_ps (*mask++);
alpha = alpha * mask_alpha;
}
alpha = alpha * v_opacity;
if (_mm_ucomigt_ss (alpha, _mm_setzero_ps ()))
{
/* out(color) = src */
out_pixel = rgba_layer;
}
else
{
out_pixel = rgba_in;
}
/* swap in the real alpha */
out_pixel_rbaa = _mm_shuffle_ps (out_pixel, alpha, _MM_SHUFFLE (3, 3, 2, 0));
out_pixel = _mm_shuffle_ps (out_pixel, out_pixel_rbaa, _MM_SHUFFLE (2, 1, 1, 0));
*v_out++ = out_pixel;
}
break;
case GIMP_LAYER_COMPOSITE_INTERSECTION:
while (samples--)
{
__v4sf rgba_in, rgba_layer, alpha;
__v4sf out_pixel, out_pixel_rbaa;
rgba_in = *v_in++;
rgba_layer = *v_layer++;
/* expand alpha */
alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_layer,
_MM_SHUFFLE (3, 3, 3, 3));
if (mask)
{
__v4sf mask_alpha;
/* multiply layer's alpha by the mask */
mask_alpha = _mm_set1_ps (*mask++);
alpha = alpha * mask_alpha;
}
alpha = alpha * v_opacity;
/* multiply the alpha by in's alpha */
alpha *= (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_in,
_MM_SHUFFLE (3, 3, 3, 3));
if (_mm_ucomigt_ss (alpha, _mm_setzero_ps ()))
{
/* out(color) = src */
out_pixel = rgba_layer;
}
else
{
out_pixel = rgba_in;
}
/* swap in the real alpha */
out_pixel_rbaa = _mm_shuffle_ps (out_pixel, alpha, _MM_SHUFFLE (3, 3, 2, 0));
out_pixel = _mm_shuffle_ps (out_pixel, out_pixel_rbaa, _MM_SHUFFLE (2, 1, 1, 0));
*v_out++ = out_pixel;
}
break;
}
}
return TRUE;
}
#endif /* COMPILE_SSE2_INTRINISICS */
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