mirror of
https://github.com/game-stop/veejay.git
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241 lines
6.0 KiB
C
241 lines
6.0 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2002 Niels Elburg <nwelburg@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License , or (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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA.
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*/
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#include "common.h"
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#include <veejaycore/vjmem.h>
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#include "softblur.h"
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#ifdef HAVE_ARM
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#include <arm_neon.h>
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#endif
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vj_effect *softblur_init(int w,int h)
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{
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vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
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ve->num_params = 1;
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ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */
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ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */
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ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */
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ve->defaults[0] = 0;
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ve->limits[0][0] = 0;
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ve->limits[1][0] = 1; /* 3*/
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ve->description = "Soft Blur (1x3) and (3x3)";
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ve->sub_format = 0;
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ve->extra_frame = 0;
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ve->has_user = 0;
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ve->param_description = vje_build_param_list(ve->num_params, "Kernel size");
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return ve;
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}
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static void softblur3_apply(VJFrame *frame )
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{
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int r,c;
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uint8_t *Y = frame->data[0];
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const int len = frame->len;
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const int width = frame->width;
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for(c = 1; c < width - 1; c ++ )
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Y[c ] = (Y[c - 1] +
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Y[c ] +
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Y[c + 1]
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) / 3;
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for(r=width; r < (len-width); r+=width) {
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for(c=1; c < (width-1); c++) {
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Y[r+c] = ( Y[r - width + c - 1] +
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Y[r - width + c ] +
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Y[r + c + 1] +
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Y[r - width + c] +
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Y[r + c] +
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Y[r + c + 1] +
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Y[r + width + c - 1] +
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Y[r + width + c] +
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Y[r + width + c + 1] ) / 9;
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}
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}
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for( c = (len-width) ; c < len; c ++ )
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Y[c ] = (Y[c - 1] +
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Y[c] +
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Y[c + 1]
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) / 3;
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}
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#ifdef HAVE_ASM_MMX
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/* mmx_blur() taken from libvisual plugins
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*
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* Libvisual-plugins - Standard plugins for libvisual
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*
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* Copyright (C) 2002, 2003, 2004, 2005 Dennis Smit <ds@nerds-incorporated.org>
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*
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* Authors: Dennis Smit <ds@nerds-incorporated.org>
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*/
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static void mmx_blur(VJFrame *frame)
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{
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__asm __volatile
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("\n\t pxor %%mm6, %%mm6"
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::);
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const int len = frame->len;
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const int width = frame->width;
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int scrsh = (len) >> 1;
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int i;
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uint8_t *buf = frame->data[0];
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/* Prepare substraction register */
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for (i = 0; i < scrsh; i += 4) {
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__asm __volatile
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("\n\t movd %[buf], %%mm0"
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"\n\t movd %[add1], %%mm1"
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"\n\t punpcklbw %%mm6, %%mm0"
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"\n\t movd %[add2], %%mm2"
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"\n\t punpcklbw %%mm6, %%mm1"
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"\n\t movd %[add3], %%mm3"
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"\n\t punpcklbw %%mm6, %%mm2"
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"\n\t paddw %%mm1, %%mm0"
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"\n\t punpcklbw %%mm6, %%mm3"
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"\n\t paddw %%mm2, %%mm0"
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"\n\t paddw %%mm3, %%mm0"
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"\n\t psrlw $2, %%mm0"
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"\n\t packuswb %%mm6, %%mm0"
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"\n\t movd %%mm0, %[buf]"
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:: [buf] "m" (*(buf + i))
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, [add1] "m" (*(buf + i + width))
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, [add2] "m" (*(buf + i + width + 1))
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, [add3] "m" (*(buf + i + width - 1))
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);
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// : "mm0", "mm1", "mm2", "mm3", "mm6");
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}
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for (i = len; i > scrsh; i -= 4) {
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__asm __volatile
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("\n\t movd %[buf], %%mm0"
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"\n\t movd %[add1], %%mm1"
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"\n\t punpcklbw %%mm6, %%mm0"
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"\n\t movd %[add2], %%mm2"
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"\n\t punpcklbw %%mm6, %%mm1"
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"\n\t movd %[add3], %%mm3"
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"\n\t punpcklbw %%mm6, %%mm2"
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"\n\t paddw %%mm1, %%mm0"
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"\n\t punpcklbw %%mm6, %%mm3"
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"\n\t paddw %%mm2, %%mm0"
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"\n\t paddw %%mm3, %%mm0"
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"\n\t psrlw $2, %%mm0"
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"\n\t packuswb %%mm6, %%mm0"
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"\n\t movd %%mm0, %[buf]"
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:: [buf] "m" (*(buf + i))
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, [add1] "m" (*(buf + i + width))
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, [add2] "m" (*(buf + i + 1))
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, [add3] "m" (*(buf + i + width - 1))
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);// : "mm0", "mm1", "mm2", "mm3", "mm6");
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}
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do_emms;
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}
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#endif
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#if !defined(HAVE_ASM_MMX) && !defined(HAVE_ARM)
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static void softblur1_apply( VJFrame *frame)
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{
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int r, c;
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const int len = frame->len;
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uint8_t *Y = frame->data[0];
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const int width = frame->width;
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for (r = 0; r < len; r += width) {
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for (c = 1; c < width-1; c++) {
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Y[c + r] = (Y[r + c - 1] +
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Y[r + c] +
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Y[r + c + 1]
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) / 3;
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}
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}
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}
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#endif
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#ifdef HAVE_ARM
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static void softblur1_apply(VJFrame *frame) {
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const int len = frame->len;
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uint8_t *Y = frame->data[0];
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const int width = frame->width;
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const int aligned_width = (width / 16) * 16;
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for (int r = 0; r < len; r += width) {
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for (int c = 1; c < aligned_width - 1; c += 16) {
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uint8x16_t prev = vld1q_u8(&Y[r + c - 1]);
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uint8x16_t current = vld1q_u8(&Y[r + c]);
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uint8x16_t next = vld1q_u8(&Y[r + c + 1]);
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uint16x8_t sum_low = vaddl_u8(vget_low_u8(prev), vget_low_u8(current));
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uint16x8_t sum_high = vaddl_u8(vget_high_u8(prev), vget_high_u8(current));
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sum_low = vaddw_u8(sum_low, vget_low_u8(next));
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sum_high = vaddw_u8(sum_high, vget_high_u8(next));
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uint8x16_t result = vcombine_u8(vshrn_n_u16(sum_low, 2), vshrn_n_u16(sum_high, 2));
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vst1q_u8(&Y[r + c], result);
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}
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for (int c = aligned_width; c < width - 1; c++) {
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Y[r + c] = (Y[r + c - 1] + Y[r + c] + Y[r + c + 1]) / 3;
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}
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}
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}
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#endif
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void softblur_apply(void *ptr, VJFrame *frame, int *args)
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{
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int type = args[0];
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switch (type) {
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case 0:
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#ifdef HAVE_ASM_MMX
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mmx_blur(frame);
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#else
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softblur1_apply(frame);
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#endif
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break;
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case 1:
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softblur3_apply(frame);
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break;
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}
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}
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void softblur_apply_internal(VJFrame *frame, int type)
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{
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switch (type) {
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case 0:
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#ifdef HAVE_ASM_MMX
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mmx_blur(frame);
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#else
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softblur1_apply(frame);
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#endif
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break;
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case 1:
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softblur3_apply(frame);
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break;
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}
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}
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