mirror of
https://github.com/game-stop/veejay.git
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267 lines
6.3 KiB
C
267 lines
6.3 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 "transcarot.h"
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vj_effect *transcarot_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 = 6;
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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] = 180; /* opacity */
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ve->defaults[1] = 0; /* type */
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ve->defaults[2] = 100; /* point sizse */
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ve->defaults[3] = (height / 2); /* dy */
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ve->defaults[4] = 40; /* dye */
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ve->defaults[5] = (width / 2); /* row */
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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] = 1;
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ve->limits[0][2] = 1;
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ve->limits[1][2] = width;
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ve->limits[0][3] = 1;
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ve->limits[1][3] = height;
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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->sub_format = 0;
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ve->param_description = vje_build_param_list(ve->num_params, "Opacity", "Mode", "Point size", "By start", "By end","Row");
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ve->description = "Transition Translate Carot";
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ve->has_user = 0;
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ve->extra_frame = 1;
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return ve;
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}
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static void transcarot1_apply( VJFrame *frame, VJFrame *frame2, int point_size,
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int dy, int dye, int row_start, int opacity)
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{
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int row_length = 1;
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int reverse = 0;
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int i;
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unsigned int op0, op1;
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unsigned int uv_width = frame->uv_width;
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int uv_dy, uv_dye, uv_row_start, uv_row_length;
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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 *Y2 = frame2->data[0];
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uint8_t *Cb2 = frame2->data[1];
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uint8_t *Cr2 = frame2->data[2];
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const int width = frame->width;
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op1 = (opacity > 255) ? 255 : opacity;
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op0 = 255 - op1;
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uv_dy = dy >> frame->shift_v;
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uv_dye = dye >> frame->shift_v;
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uv_row_start = row_start;
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uv_row_length = 1;
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while (dy >= dye && row_length > 0)
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{
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for (i = row_start; i < (row_start + row_length); i++)
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{
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Y[(dy * width + i)] = (op0 * Y[(dy * width + i)] + op1 * Y2[(dy * width + i)]) >> 8 ;
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}
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if (reverse == 1)
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{
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row_length -= 2;
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row_start++;
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}
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else {
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row_length += 2;
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row_start--;
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}
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if (row_length >= point_size)
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reverse = 1;
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dy--;
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}
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reverse = 0;
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i = 0;
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while (uv_dy >= uv_dye && uv_row_length > 0)
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{
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for (i = uv_row_start; i < ((uv_row_start + uv_row_length) >> frame->shift_v); i++)
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{
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Cb[(uv_dy * uv_width + i)] =
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(op0 * Cb[(uv_dy * uv_width + i)] +
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op1 * Cb2[(uv_dy * uv_width + i)]) >>8;
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Cr[(uv_dy * uv_width + i)] =
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(op0 * Cr[(uv_dy * uv_width + i)] +
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op1 * Cr2[(uv_dy * uv_width + i)]) >> 8;
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}
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if (reverse == 1)
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{
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uv_row_length -= 2;
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uv_row_start++;
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}
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else
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{
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uv_row_length += 2;
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uv_row_start--;
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}
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if (uv_row_length >= point_size)
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reverse = 1;
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dy--;
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}
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}
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/* carot transistion. like translate, but different form and with mirroring */
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static void transcarot2_apply( VJFrame *frame, VJFrame *frame2, int point_size,
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int dy, int dye, int row_start, int opacity)
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{
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int row_length = 1;
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int reverse = 0;
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int i;
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unsigned int op0, op1;
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const unsigned int width = frame->width;
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const int len = frame->len;
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unsigned int uv_width = frame->uv_width;
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int uv_dy, uv_dye, uv_row_start, uv_row_length;
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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 *Y2 = frame2->data[0];
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uint8_t *Cb2 = frame2->data[1];
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uint8_t *Cr2 = frame2->data[2];
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op1 = (opacity > 255) ? 255 : opacity;
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op0 = 255 - op1;
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uv_dy = dy >> frame->shift_v;
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uv_dye = dye >> frame->shift_v;
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uv_row_start = row_start;
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uv_row_length = 1;
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while (dy >= dye && row_length > 0)
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{
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if (reverse == 0)
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{
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for (i = row_start; i < (row_start + row_length); i++)
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{
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Y[(dy * width + i)] = (op0 * Y[(dy * width + i)] + op1 * Y2[(dy * width + i)]) >> 8;
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}
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}
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else
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{
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for (i = row_start; i < (row_start + row_length); i++)
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{
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Y[(dy * width + i)] = (op0 * Y[(dy * width + i)] + op1 * Y2[len - (dy * width + i)]) >> 8;
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}
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}
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if (reverse == 1)
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{
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row_length -= 2;
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row_start++;
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}
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else
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{
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row_length += 2;
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row_start--;
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}
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if (row_length > point_size)
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reverse = 1;
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dy--;
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}
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reverse = 0;
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i = 0;
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while (uv_dy >= uv_dye && uv_row_length > 0)
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{
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if (reverse == 0)
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{
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for (i = uv_row_start;
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i < ((uv_row_start + uv_row_length) >> frame->shift_v);
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i++)
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{
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Cb[(uv_dy * uv_width + i)] =
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(op0 * Cb[(uv_dy * uv_width + i)] +
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op1 * Cb2[(uv_dy * uv_width + i)]) >> 8;
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Cr[(uv_dy * uv_width + i)] =
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(op0 * Cr[(uv_dy * uv_width + i)] +
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op1 * Cr2[(uv_dy * uv_width + i)]) >> 8;
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}
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}
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else
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{
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for (i = uv_row_start;
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i < ((uv_row_start + uv_row_length) >> frame->shift_v);
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i++)
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{
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Cb[(uv_dy * uv_width + i)] =
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(op0 * Cb[(uv_dy * uv_width + i)] +
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op1 * Cb2[len - (uv_dy * uv_width + i)]) >> 8;
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Cr[(uv_dy * uv_width + i)] =
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(op0 * Cr[(uv_dy * uv_width + i)] +
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op1 * Cr2[len - (uv_dy * uv_width + i)]) >> 8;
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}
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}
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if (reverse == 1)
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{
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uv_row_length -= 2;
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uv_row_start++;
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}
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else
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{
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uv_row_length += 2;
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uv_row_start--;
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}
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if (uv_row_length > point_size)
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reverse = 1;
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dy--;
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}
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}
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void transcarot_apply( void *ptr, VJFrame *frame, VJFrame *frame2, int *args ) {
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int p = args[0];
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int dy = args[1];
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int dye = args[2];
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int row = args[3];
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int opacity = args[4];
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int type = args[5];
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if (type == 1)
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transcarot1_apply(frame, frame2, p, dy, dye, row, opacity);
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if (type == 0)
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transcarot2_apply(frame, frame2, p, dy, dye, row, opacity);
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}
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