1 /******************************************************************************
5 ******************************************************************************/
8 * Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org>
11 * This is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * The software is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this software; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 /*****************************************************************************/
30 /*****************************************************************************/
31 #define TESTCARD_BYTESPERLINE (2 * 720)
33 easycap_testcard(struct easycap *peasycap, int field)
37 unsigned char uyvy[4];
38 int i1, line, k, m, n, more, much, barwidth, barheight;
39 unsigned char bfbar[TESTCARD_BYTESPERLINE / 8], *p1, *p2;
40 struct data_buffer *pfield_buffer;
43 SAY("ERROR: peasycap is NULL\n");
46 JOM(8, "%i=field\n", field);
47 switch (peasycap->width) {
50 barwidth = (2 * 720) / 8;
55 barwidth = (2 * 704) / 8;
60 barwidth = (2 * 640) / 8;
64 SAM("ERROR: cannot set barwidth\n");
68 if (TESTCARD_BYTESPERLINE < barwidth) {
69 SAM("ERROR: barwidth is too large\n");
72 switch (peasycap->height) {
84 SAM("ERROR: cannot set barheight\n");
93 for (line = 0; line < (barheight / 2); line++) {
94 for (i1 = 0; i1 < 8; i1++) {
99 y = 299*r/1000 + 587*g/1000 + 114*b/1000 ;
100 u = -147*r/1000 - 289*g/1000 + 436*b/1000 ;
102 v = 615*r/1000 - 515*g/1000 - 100*b/1000 ;
111 while (p1 < &bfbar[barwidth]) {
123 if ((FIELD_BUFFER_SIZE/PAGE_SIZE) <= m) {
124 SAM("ERROR: bad m reached\n");
128 SAM("ERROR: bad n reached\n");
133 SAM("ERROR: internal fault\n");
137 much = PAGE_SIZE - n;
140 pfield_buffer = &peasycap->field_buffer[k][m];
141 p2 = pfield_buffer->pgo + n;
142 memcpy(p2, p1, much);
147 if (PAGE_SIZE == n) {