mirror of
https://github.com/game-stop/veejay.git
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294 lines
7.4 KiB
C
294 lines
7.4 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2005 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 "photoplay.h"
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vj_effect *photoplay_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 = 3;
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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->limits[0][0] = 2; // divider
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ve->limits[1][0] = max_power(w);
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ve->limits[0][1] = 1;
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ve->limits[1][1] = 250; // waterfall
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ve->limits[0][2] = 0;
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ve->limits[1][2] = 1 + get_matrix_func_n(); // mode
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ve->defaults[0] = 2;
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ve->defaults[1] = 2; // higher value takes less cpu
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ve->defaults[2] = 1;
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ve->description = "Photoplay (timestretched mosaic)";
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ve->sub_format = 1;
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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, "Photos", "Waterfall", "Mode");
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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][2],2,
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"Random", //0
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"TopLeft to BottomRight : Horizontal", //1
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"TopLeft to BottomRight : Vertical", //2
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"BottomRight to TopLeft : Horizontal", //3
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"BottomRight to TopLeft : Vertical", //4
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"BottomLeft to TopRight : Horizontal", //5
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"TopRight to BottomLeft : Vertical", //6
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"TopRight to BottomLeft : Horizontal", //7
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"BottomLeft to TopRight : Vertical"); //8
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return ve;
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}
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typedef struct {
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picture_t **photo_list;
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int num_photos;
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int frame_counter;
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int frame_delay;
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int *rt;
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int last_mode;
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} photoplay_t;
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static int prepare_filmstrip(photoplay_t *p, int film_length, int w, int h)
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{
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int i,j;
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int picture_width = w / sqrt(film_length);
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int picture_height = h / sqrt(film_length);
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p->photo_list = (picture_t**) vj_calloc(sizeof(picture_t*) * (film_length + 1) );
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if(!p->photo_list)
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return 0;
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p->rt = (int*) vj_calloc(sizeof(int) * film_length );
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if(!p->rt)
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return 0;
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p->num_photos = film_length;
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for ( i = 0; i < p->num_photos; i ++ )
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{
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p->photo_list[i] = vj_malloc(sizeof(picture_t));
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if(!p->photo_list[i])
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return 0;
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p->photo_list[i]->w = picture_width;
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p->photo_list[i]->h = picture_height;
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for( j = 0; j < 3; j ++ )
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{
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p->photo_list[i]->data[j] = vj_malloc(sizeof(uint8_t) * picture_width * picture_height );
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if(!p->photo_list[i]->data[j])
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return 0;
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veejay_memset(p->photo_list[i]->data[j], (j==0 ? pixel_Y_lo_ : 128), picture_width *picture_height );
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}
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}
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p->frame_counter = 0;
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return 1;
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}
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static void destroy_filmstrip(photoplay_t *p)
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{
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if(p->photo_list)
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{
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int i = 0;
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while(i < p->num_photos)
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{
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if( p->photo_list[i] )
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{
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int j;
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for( j = 0; j < 3; j ++ ) {
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if(p->photo_list[i]->data[j]) {
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free(p->photo_list[i]->data[j]);
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p->photo_list[i]->data[j] = NULL;
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}
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}
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free(p->photo_list[i]);
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p->photo_list[i] = NULL;
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}
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i++;
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}
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free(p->photo_list);
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p->photo_list = NULL;
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}
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if(p->rt) {
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free(p->rt);
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p->rt = NULL;
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}
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p->num_photos = 0;
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p->frame_counter = 0;
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p->last_mode = -1;
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p->frame_delay = 0;
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}
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void *photoplay_malloc(int w, int h )
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{
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photoplay_t *p = (photoplay_t*) vj_calloc(sizeof(photoplay_t));
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if(!p) {
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return NULL;
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}
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return (void*) p;
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}
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void photoplay_free(void *ptr)
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{
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photoplay_t *p = (photoplay_t*) ptr;
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destroy_filmstrip(p);
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free(p);
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}
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static void take_photo( photoplay_t *p, uint8_t *plane, uint8_t *dst_plane, int w, int h, int index )
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{
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int x,y,dx,dy;
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int sum;
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int dst_x, dst_y;
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int step_y;
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int step_x;
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int box_width = p->photo_list[index]->w;
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int box_height = p->photo_list[index]->h;
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step_x = w / box_width;
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step_y = h / box_height;
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for( y = 0 ,dst_y = 0; y < h && dst_y < box_height; y += step_y )
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{
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for( x = 0, dst_x = 0; x < w && dst_x < box_width; x+= step_x )
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{
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sum = 0;
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for( dy = 0; dy < step_y; dy ++ )
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{
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for( dx = 0; dx < step_x; dx++)
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{
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sum += plane[ ((y+dy)*w+(dx+x)) ];
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}
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}
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// still problem here!
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// if(sum > 0)
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dst_plane[(dst_y*box_width)+dst_x] = sum / (step_y*step_x);
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// else
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// dst_plane[(dst_y*box_width)+dst_x] = pixel_Y_lo_;
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dst_x++;
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}
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dst_y++;
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}
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}
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static void put_photo( photoplay_t *p, uint8_t *dst_plane, uint8_t *photo, int dst_w, int dst_h, int index , matrix_t matrix)
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{
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int box_w = p->photo_list[index]->w;
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int box_h = p->photo_list[index]->h;
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int x,y;
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uint8_t *P = dst_plane + (matrix.h*dst_w);
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int offset = matrix.w;
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for( y = 0; y < box_h; y ++ )
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{
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for( x = 0; x < box_w; x ++ )
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{
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*(P+offset+x) = photo[(y*box_w)+x];
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}
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P += dst_w;
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}
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}
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void photoplay_apply( void *ptr, VJFrame *frame, int *args ) {
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int size = args[0];
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int delay = args[1];
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int mode = args[2];
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unsigned int i;
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const unsigned int width = frame->width;
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const unsigned int height = frame->height;
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uint8_t *dstY = frame->data[0];
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uint8_t *dstU = frame->data[1];
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uint8_t *dstV = frame->data[2];
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photoplay_t *p = (photoplay_t*) ptr;
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if( (size*size) != p->num_photos || p->num_photos == 0)
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{
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destroy_filmstrip(p);
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if(!prepare_filmstrip(p,size*size, width,height))
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{
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destroy_filmstrip(p);
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return;
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}
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p->frame_delay = 0;
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for( i = 0; i < p->num_photos; i ++ )
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p->rt[i] = i;
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if( mode == 0)
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fx_shuffle_int_array( p->rt, p->num_photos );
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}
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if(p->last_mode != mode)
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{
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for( i = 0; i < p->num_photos; i ++ )
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p->rt[i] = i;
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if( mode == 0)
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fx_shuffle_int_array( p->rt, p->num_photos );
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}
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p->last_mode = mode;
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if( p->frame_delay )
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p->frame_delay --;
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if( p->frame_delay == 0)
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{
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for( i = 0; i < 3; i ++ )
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{
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take_photo(p, frame->data[i], p->photo_list[(p->frame_counter%p->num_photos)]->data[i], width, height , p->frame_counter % p->num_photos);
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}
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p->frame_delay = delay;
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}
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matrix_f matrix_placement;
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if( mode == 0 ) {
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matrix_placement = get_matrix_func(0); // !important in random mode
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}
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else {
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matrix_placement = get_matrix_func(mode-1);
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}
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for( i = 0; i < p->num_photos; i ++ )
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{
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matrix_t m = matrix_placement( p->rt[i], size,width,height );
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put_photo(p, dstY, p->photo_list[i]->data[0],width,height,i,m);
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put_photo(p, dstU, p->photo_list[i]->data[1],width,height,i,m);
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put_photo(p, dstV, p->photo_list[i]->data[2],width,height,i,m);
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}
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if(p->frame_delay == delay)
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p->frame_counter ++;
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}
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