269 lines
8.9 KiB
C
269 lines
8.9 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikaoperationnormal-sse2.c
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* Copyright (C) 2013 Daniel Sabo
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl-plugin.h>
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#include "operations/operations-types.h"
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#include "pikaoperationnormal.h"
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#if COMPILE_SSE2_INTRINISICS
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/* SSE2 */
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#include <emmintrin.h>
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gboolean
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pika_operation_normal_process_sse2 (GeglOperation *op,
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void *in_p,
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void *layer_p,
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void *mask_p,
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void *out_p,
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glong samples,
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const GeglRectangle *roi,
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gint level)
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{
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/* check alignment */
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if ((((uintptr_t)in_p) | ((uintptr_t)layer_p) | ((uintptr_t)out_p)) & 0x0F)
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{
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return pika_operation_normal_process (op,
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in_p, layer_p, mask_p, out_p,
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samples, roi, level);
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}
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else
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{
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PikaOperationLayerMode *layer_mode = (gpointer) op;
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gfloat opacity = layer_mode->opacity;
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gfloat *mask = mask_p;
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const __v4sf *v_in = (const __v4sf*) in_p;
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const __v4sf *v_layer = (const __v4sf*) layer_p;
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__v4sf *v_out = ( __v4sf*) out_p;
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const __v4sf one = _mm_set1_ps (1.0f);
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const __v4sf v_opacity = _mm_set1_ps (opacity);
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switch (layer_mode->composite_mode)
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{
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case PIKA_LAYER_COMPOSITE_UNION:
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case PIKA_LAYER_COMPOSITE_AUTO:
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while (samples--)
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{
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__v4sf rgba_in, rgba_layer, alpha;
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rgba_in = *v_in++;
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rgba_layer = *v_layer++;
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/* expand alpha */
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alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_layer,
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_MM_SHUFFLE (3, 3, 3, 3));
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if (mask)
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{
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__v4sf mask_alpha;
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/* multiply layer's alpha by the mask */
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mask_alpha = _mm_set1_ps (*mask++);
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alpha = alpha * mask_alpha;
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}
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alpha = alpha * v_opacity;
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if (_mm_ucomigt_ss (alpha, _mm_setzero_ps ()))
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{
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__v4sf dst_alpha, a_term, out_pixel, out_alpha, out_pixel_rbaa;
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/* expand alpha */
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dst_alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_in,
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_MM_SHUFFLE (3, 3, 3, 3));
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/* a_term = dst_a * (1.0 - src_a) */
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a_term = dst_alpha * (one - alpha);
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/* out(color) = src * src_a + dst * a_term */
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out_pixel = rgba_layer * alpha + rgba_in * a_term;
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/* out(alpha) = 1.0 * src_a + 1.0 * a_term */
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out_alpha = alpha + a_term;
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/* un-premultiply */
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out_pixel = out_pixel / out_alpha;
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/* swap in the real alpha */
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out_pixel_rbaa = _mm_shuffle_ps (out_pixel, out_alpha, _MM_SHUFFLE (3, 3, 2, 0));
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out_pixel = _mm_shuffle_ps (out_pixel, out_pixel_rbaa, _MM_SHUFFLE (2, 1, 1, 0));
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*v_out++ = out_pixel;
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}
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else
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{
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*v_out++ = rgba_in;
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}
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}
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break;
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case PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP:
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while (samples--)
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{
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__v4sf rgba_in, rgba_layer, alpha;
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rgba_in = *v_in++;
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rgba_layer = *v_layer++;
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/* expand alpha */
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alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_layer,
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_MM_SHUFFLE (3, 3, 3, 3));
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if (mask)
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{
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__v4sf mask_alpha;
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/* multiply layer's alpha by the mask */
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mask_alpha = _mm_set1_ps (*mask++);
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alpha = alpha * mask_alpha;
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}
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alpha = alpha * v_opacity;
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if (_mm_ucomigt_ss (alpha, _mm_setzero_ps ()))
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{
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__v4sf dst_alpha, out_pixel, out_pixel_rbaa;
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/* expand alpha */
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dst_alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_in,
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_MM_SHUFFLE (3, 3, 3, 3));
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/* out(color) = dst * (1 - src_a) + src * src_a */
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out_pixel = rgba_in + (rgba_layer - rgba_in) * alpha;
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/* swap in the real alpha */
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out_pixel_rbaa = _mm_shuffle_ps (out_pixel, dst_alpha, _MM_SHUFFLE (3, 3, 2, 0));
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out_pixel = _mm_shuffle_ps (out_pixel, out_pixel_rbaa, _MM_SHUFFLE (2, 1, 1, 0));
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*v_out++ = out_pixel;
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}
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else
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{
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*v_out++ = rgba_in;
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}
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}
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break;
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case PIKA_LAYER_COMPOSITE_CLIP_TO_LAYER:
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while (samples--)
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{
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__v4sf rgba_in, rgba_layer, alpha;
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__v4sf out_pixel, out_pixel_rbaa;
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rgba_in = *v_in++;
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rgba_layer = *v_layer++;
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/* expand alpha */
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alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_layer,
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_MM_SHUFFLE (3, 3, 3, 3));
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if (mask)
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{
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__v4sf mask_alpha;
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/* multiply layer's alpha by the mask */
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mask_alpha = _mm_set1_ps (*mask++);
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alpha = alpha * mask_alpha;
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}
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alpha = alpha * v_opacity;
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if (_mm_ucomigt_ss (alpha, _mm_setzero_ps ()))
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{
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/* out(color) = src */
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out_pixel = rgba_layer;
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}
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else
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{
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out_pixel = rgba_in;
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}
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/* swap in the real alpha */
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out_pixel_rbaa = _mm_shuffle_ps (out_pixel, alpha, _MM_SHUFFLE (3, 3, 2, 0));
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out_pixel = _mm_shuffle_ps (out_pixel, out_pixel_rbaa, _MM_SHUFFLE (2, 1, 1, 0));
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*v_out++ = out_pixel;
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}
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break;
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case PIKA_LAYER_COMPOSITE_INTERSECTION:
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while (samples--)
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{
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__v4sf rgba_in, rgba_layer, alpha;
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__v4sf out_pixel, out_pixel_rbaa;
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rgba_in = *v_in++;
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rgba_layer = *v_layer++;
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/* expand alpha */
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alpha = (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_layer,
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_MM_SHUFFLE (3, 3, 3, 3));
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if (mask)
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{
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__v4sf mask_alpha;
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/* multiply layer's alpha by the mask */
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mask_alpha = _mm_set1_ps (*mask++);
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alpha = alpha * mask_alpha;
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}
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alpha = alpha * v_opacity;
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/* multiply the alpha by in's alpha */
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alpha *= (__v4sf)_mm_shuffle_epi32 ((__m128i)rgba_in,
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_MM_SHUFFLE (3, 3, 3, 3));
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if (_mm_ucomigt_ss (alpha, _mm_setzero_ps ()))
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{
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/* out(color) = src */
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out_pixel = rgba_layer;
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}
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else
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{
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out_pixel = rgba_in;
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}
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/* swap in the real alpha */
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out_pixel_rbaa = _mm_shuffle_ps (out_pixel, alpha, _MM_SHUFFLE (3, 3, 2, 0));
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out_pixel = _mm_shuffle_ps (out_pixel, out_pixel_rbaa, _MM_SHUFFLE (2, 1, 1, 0));
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*v_out++ = out_pixel;
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}
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break;
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}
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}
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return TRUE;
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}
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#endif /* COMPILE_SSE2_INTRINISICS */
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