mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-15 12:20:03 +01:00
5640b2b0ca
only warn about mismatching audio properties if started without audio, add alpha channel support to livido, renamed a FX, added mixtoalpha,alphafill,alpha2img,toalpha,alphaflatten, handle alpha plane, vims 048 enables full sub-chain render incl. mixing effects,
71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2015 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 <config.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <libvjmem/vjmem.h>
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#include "common.h"
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#include "alphaflatten.h"
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vj_effect *alphaflatten_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 = 0;
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ve->description = "Alpha: Flatten Image";
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ve->sub_format = 1;
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ve->extra_frame = 0;
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ve->parallel = 1;
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ve->has_user = 0;
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return ve;
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}
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void alphaflatten_apply( VJFrame *frame, int width, int height)
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{
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int i;
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int len = frame->len;
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int uv_len = frame->uv_len;
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uint8_t *Y = frame->data[0];
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uint8_t *Cb = frame->data[1];
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uint8_t *Cr = frame->data[2];
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uint8_t *a = frame->data[3];
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uint8_t *o0 = frame->data[0];
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uint8_t *o1 = frame->data[1];
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uint8_t *o2 = frame->data[2];
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uint8_t *dA = frame->data[3];
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uint8_t *a0 = frame->data[0];
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uint8_t *a1 = frame->data[1];
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uint8_t *a2 = frame->data[2];
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uint8_t *aA = frame->data[3];
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for( i = 0; i < len; i ++ )
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{
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unsigned int op1 = 0xff - aA[i];
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unsigned int op0 = aA[i];
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o0[i] = (op0 * a0[i]) >> 8;
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o1[i] = (op0 * a1[i] + op1 * 128) >> 8;
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o2[i] = (op0 * a2[i] + op1 * 128)>>8;
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dA = 0;
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}
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}
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