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122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2002-2005 Niels Elburg <nelburg@looze.net>
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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 <stdint.h>
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#include <stdio.h>
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#include <libvjmem/vjmem.h>
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#include "transop.h"
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vj_effect *transop_init(int width, int height)
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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 = 7;
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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] = 150; /* opacity */
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ve->defaults[1] = 265; /* width of view port */
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ve->defaults[2] = 194; /* height of viewport */
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ve->defaults[3] = 59; /* y1 */
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ve->defaults[4] = 58; /* x1 */
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ve->defaults[5] = 45; /* y2 */
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ve->defaults[6] = 58; /* x2 */
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ve->limits[0][0] = 0;
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ve->limits[1][0] = 255;
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ve->limits[0][1] = 0;
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ve->limits[1][1] = width;
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ve->limits[0][2] = 0;
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ve->limits[1][2] = height;
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ve->limits[0][3] = 0;
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ve->limits[1][3] = height;
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ve->limits[0][4] = 0;
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ve->limits[1][4] = width;
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ve->limits[0][5] = 0;
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ve->limits[1][5] = height;
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ve->limits[0][6] = 0;
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ve->limits[1][6] = width;
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ve->description = "Transition Translate Opacity";
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ve->sub_format = 1;
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ve->extra_frame = 1;
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ve->has_user = 0;
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ve->param_description = vje_build_param_list(ve->num_params, "Opacity", "Width", "Height", "Ay", "Ax", "By", "Bx");
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return ve;
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}
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/* translate, twidth,theight: size of block to transform */
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/* moves block(x2,y2) to (x1,y1), size of block to move is twidth * theight */
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void transop_apply( VJFrame *frame, VJFrame *frame2,
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int twidth, int theight, int x1, int y1, int x2, int y2,
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int width, int height, int opacity)
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{
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int x, y;
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unsigned int op0, op1;
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uint8_t *dY = frame->data[0];
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uint8_t *dCb = frame->data[1];
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uint8_t *dCr = frame->data[2];
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uint8_t *sY = frame2->data[0];
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uint8_t *sCb = frame2->data[1];
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uint8_t *sCr = frame2->data[2];
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op1 = (opacity > 255) ? 255 : opacity;
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op0 = 255 - op1;
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int view_width = twidth;
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int view_height = theight;
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int sy = y1;
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int sx = x1;
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int dy = y2;
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int dx = x2;
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if ( (dx + view_width ) > width )
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view_width = width - dx;
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if ( (dy + view_height ) > height )
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view_height = height - dy;
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if ( (sy + view_height) > height )
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view_height = height - sy;
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if ( (sx + view_width ) > width )
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view_width = width - sx;
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for( y = 0 ; y < view_height; y ++ )
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{
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for( x = 0 ; x < view_width; x ++ )
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{
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dY[ (dy + y ) * width + dx + x ] =
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sY[ (sy + y) * width + sx + x ];
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dCb[ (dy + y ) * width + dx + x ] =
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sCb[ (sy + y) * width + sx + x ];
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dCr[ (dy + y ) * width + dx + x ] =
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sCr[ (sy + y) * width + sx + x ];
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}
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}
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}
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void transop_free(){}
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