mirror of
https://github.com/game-stop/veejay.git
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122 lines
3.7 KiB
C
122 lines
3.7 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 <libvje/effects/common.h>
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#include <veejaycore/vjmem.h>
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#include "transblend.h"
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#include <libvje/internal.h>
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vj_effect *transblend_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] = 1;
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ve->defaults[1] = 50;
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ve->defaults[2] = 50;
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ve->defaults[3] = 50;
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ve->defaults[4] = 50;
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ve->defaults[5] = 50;
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ve->defaults[6] = 50;
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ve->limits[0][0] = 0;
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ve->limits[1][0] = VJ_EFFECT_BLEND_COUNT;
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ve->limits[0][1] = 1;
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ve->limits[1][1] = width;
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ve->limits[0][2] = 1;
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ve->limits[1][2] = height;
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ve->limits[0][3] = 1;
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ve->limits[1][3] = width;
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ve->limits[0][4] = 1;
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ve->limits[1][4] = height;
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ve->limits[0][5] = 1;
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ve->limits[1][5] = width;
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ve->limits[0][6] = 1;
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ve->limits[1][6] = height;
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ve->sub_format = 0;
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ve->extra_frame = 1;
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ve->has_user = 0;
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ve->description = "Transition Translate Blend";
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ve->param_description = vje_build_param_list( ve->num_params, "Mode", "Width", "Height", "Ax offset", "Ay offset" , "Bx offset", "By offset");
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ve->hints = vje_init_value_hint_list( ve->num_params );
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vje_build_value_hint_list( ve->hints, ve->limits[1][0], 0, VJ_EFFECT_BLEND_STRINGS);
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return ve;
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}
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void transblend_apply( void *ptr, VJFrame *frame, VJFrame *frame2, int *args) {
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int type = args[0];
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int twidth = args[1];
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int theight = args[2];
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int x1 = args[3];
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int y1 = args[4];
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int x2 = args[5];
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int y2 = args[6];
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int x, y;
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int p, q;
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int uv_width = frame->uv_width;
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const unsigned int width = frame->width;
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const unsigned int height = frame->height;
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int uvy1, uvy2, uvx1, uvx2;
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uint8_t *Y, *Cb, *Cr, *Y2, *Cb2, *Cr2;
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pix_func_Y func_y = get_pix_func_Y((const int) type);
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pix_func_C func_c = get_pix_func_C((const int) type);
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uvy1 = y1 >> frame->shift_v;
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uvy2 = y2 >> frame->shift_v;
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uvx1 = x1 >> frame->shift_h;
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uvx2 = x2 >> frame->shift_h;
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Y = frame->data[0];
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Cb = frame->data[1];
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Cr = frame->data[2];
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Y2 = frame2->data[0];
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Cb2 = frame2->data[1];
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Cr2 = frame2->data[2];
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if( (theight + y2) > height ) y2 = (height-theight);
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if( (twidth + x2) > width) x2 = (width-twidth);
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for (y = 0; y < theight; y++) {
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for (x = 0; x < twidth; x++) {
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p = (y2 + y) * width + x2 + x;
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q = (y1 + y) * width + x1 + x;
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Y[p] = func_y(Y[p], Y2[q]);
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}
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}
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for (y = 0; y < (theight >> frame->shift_v); y++) {
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for (x = 0; x < (twidth >> frame->shift_h); x++) {
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p = (uvy2 + y) * uv_width + uvx2 + x;
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q = (uvy1 + y) * uv_width + uvx1 + x;
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Cb[p] = func_c( Cb[p], Cb2[q]);
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Cr[p] = func_c( Cr[p], Cr2[q]);
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}
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}
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}
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