/* * Linux VeeJay * * Copyright(C)2004 Niels Elburg * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License , or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA. */ #include #include #include #include "lumablend.h" #include vj_effect *lumablend_init(int w, int h) { vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect)); ve->num_params = 4; ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */ ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */ ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */ ve->limits[0][0] = 0; /* type */ ve->limits[1][0] = 2; if(vj_task_available() ) ve->limits[1][0] = 1; /* no blur */ ve->limits[0][1] = 0; /* threshold 1 */ ve->limits[1][1] = 255; ve->limits[0][2] = 0; /* threshold 2 */ ve->limits[1][2] = 255; ve->limits[0][3] = 0; /*opacity */ ve->limits[1][3] = 255; ve->defaults[0] = 1; ve->defaults[1] = 0; ve->defaults[2] = 35; ve->defaults[3] = 150; ve->description = "Opacity by Threshold"; ve->extra_frame = 1; ve->parallel = 0; ve->sub_format = 1; ve->parallel = 1; ve->has_user = 0; ve->param_description = vje_build_param_list(ve->num_params, "Mode", "Threshold A", "Threshold B", "Opacity" ); return ve; } void opacity_by_threshold(uint8_t * yuv1[3], uint8_t * yuv2[3], int width, int height, int threshold, int threshold2, int opacity) { unsigned int x, y, len = width * height; uint8_t a1, a2; unsigned int op0, op1; op1 = (opacity > 255) ? 255 : opacity; op0 = 255 - op1; for (y = 0; y < len; y += width) { for (x = 0; x < width; x++) { a1 = yuv1[0][x + y]; a2 = yuv2[0][x + y]; if (a1 >= threshold && a1 <= threshold2) { yuv1[0][x + y] = (op0 * a1 + op1 * a2) >> 8; yuv1[1][x + y] = (op0 * yuv1[1][x + y] + op1 * yuv2[1][x + y]) >> 8; yuv1[2][x + y] = (op0 * yuv1[2][x + y] + op1 * yuv2[2][x + y]) >> 8; } } } } void opacity_by_threshold_(uint8_t * yuv1[3], uint8_t * yuv2[3], int width, int height, int threshold, int threshold2, int opacity) { unsigned int x, y, len = width * height; uint8_t a1, a2; unsigned int op0, op1; op1 = (opacity > 255) ? 255 : opacity; op0 = 255 - op1; for (y = 0; y < len; y += width) { for (x = 0; x < width; x++) { a1 = yuv1[0][x + y]; a2 = yuv2[0][x + y]; if (a2 > threshold && a2 < threshold2) { yuv1[0][x + y] = (op0 * a1 + op1 * a2) >> 8; yuv1[1][x + y] = (op0 * yuv1[1][x + y] + op1 * yuv2[1][x + y]) >> 8; yuv1[2][x + y] = (op0 * yuv1[2][x + y] + op1 * yuv2[2][x + y]) >> 8; } } } } void opacity_by_threshold_blur(uint8_t * yuv1[3], uint8_t * yuv2[3], int width, int height, int threshold, int threshold2, int opacity) { unsigned int x, y, len = width * height - width; uint8_t a1=threshold, a2=threshold2; unsigned int op0, op1; op1 = (opacity > 255) ? 255 : opacity; op0 = 255 - op1; for( y = 0; y < width; y+= width ) { for( x = 0; x < width; x ++ ) { yuv1[0][x + y] = (op0 * a1 + op1 * a2) >> 8; yuv1[1][x + y] = (op0 * yuv1[1][x + y] + op1 * yuv2[1][x + y]) >> 8; yuv1[2][x + y] = (op0 * yuv1[2][x + y] + op1 * yuv2[2][x + y]) >> 8; } } for (y = width; y < len; y += width) { yuv1[0][y] = (op0 * a1 + op1 * a2) >> 8; yuv1[1][y] = (op0 * yuv1[1][y] + op1 * yuv2[1][y]) >> 8; yuv1[2][y] = (op0 * yuv1[2][y] + op1 * yuv2[2][y]) >> 8; for (x = 1; x < width-1; x++) { a1 = yuv1[0][x + y]; a2 = yuv2[0][x + y]; if (a1 >= threshold && a1 <= threshold2) { a1 = (yuv1[0][y - width + x - 1] + yuv1[0][y - width + x + 1] + yuv1[0][y - width + x] + yuv1[0][y + x] + yuv1[0][y + x - 1] + yuv1[0][y + x + 1] + yuv1[0][y + width + x] + yuv1[0][y + width + x + 1] + yuv1[0][y + width + x - 1] ) / 9; a2 = (yuv2[0][y - width + x - 1] + yuv2[0][y - width + x + 1] + yuv2[0][y - width + x] + yuv2[0][y + x] + yuv2[0][y + x - 1] + yuv2[0][y + x + 1] + yuv2[0][y + width + x] + yuv2[0][y + width + x + 1] + yuv2[0][y + width + x - 1] ) / 9; yuv1[0][x + y] = (op0 * a1 + op1 * a2) >> 8; yuv1[1][x + y] = (op0 * yuv1[1][x + y] + op1 * yuv2[1][x + y]) >> 8; yuv1[2][x + y] = (op0 * yuv1[2][x + y] + op1 * yuv2[2][x + y]) >> 8; } } yuv1[0][width + y] = (op0 * a1 + op1 * a2) >> 8; yuv1[1][width + y] = (op0 * yuv1[1][width + y] + op1 * yuv2[1][width + y]) >> 8; yuv1[2][width + y] = (op0 * yuv1[2][width + y] + op1 * yuv2[2][width + y]) >> 8; } for( x = 0; x < width; x ++ ) { yuv1[0][x + y] = (op0 * a1 + op1 * a2) >> 8; yuv1[1][x + y] = (op0 * yuv1[1][x + y] + op1 * yuv2[1][x + y]) >> 8; yuv1[2][x + y] = (op0 * yuv1[2][x + y] + op1 * yuv2[2][x + y]) >> 8; } } void lumablend_apply(VJFrame *frame, VJFrame *frame2, int width, int height, int type, int t1, int t2, int opacity) { switch (type) { case 0: opacity_by_threshold(frame->data, frame2->data, width, height, t1, t2, opacity); break; case 1: opacity_by_threshold_(frame->data, frame2->data, width, height, t1, t2, opacity); break; case 2: opacity_by_threshold_blur(frame->data, frame2->data, width, height, t1, t2, opacity); break; } } void lumablend_free(){}