FreeCalypso > hg > freecalypso-tools
view lcdemu/process.c @ 362:89fe66cb60f6
fcup-smsend program put together, compiles
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 05 Mar 2018 01:47:18 +0000 |
parents | e7502631a0f9 |
children |
line wrap: on
line source
/* * Processing of LCD output (input to us) */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <ctype.h> #include <string.h> #include <strings.h> #include <X11/Xlib.h> #include <X11/Xresource.h> #include <X11/Xutil.h> #include "globals.h" #define MAX_WIDTH 176 static unsigned hexdecode(str) char *str; { unsigned accum = 0; int i, c, n; for (i = 0; i < 4; i++) { c = str[i]; if (isdigit(c)) n = c - '0'; else if (isupper(c)) n = c - 'A' + 10; else n = c - 'a' + 10; accum <<= 4; accum |= n; } return(accum); } process_input_line(line) char *line; { int blitrow, blitcol, npix; uint16_t pix16[MAX_WIDTH]; char *cp; XImage *xi; for (cp = line; isspace(*cp); cp++) ; if (!isdigit(*cp)) { inv: fprintf(stderr, "fc-lcdemu: invalid input line\n"); exit(1); } blitrow = atoi(cp); while (isdigit(*cp)) cp++; if (!isspace(*cp)) goto inv; while (isspace(*cp)) cp++; if (!isdigit(*cp)) goto inv; blitcol = atoi(cp); while (isdigit(*cp)) cp++; if (!isspace(*cp)) goto inv; while (isspace(*cp)) cp++; if (!isxdigit(*cp)) goto inv; for (npix = 0; *cp; ) { if (!isxdigit(cp[0]) || !isxdigit(cp[1]) || !isxdigit(cp[2]) || !isxdigit(cp[3])) goto inv; if (npix >= MAX_WIDTH) { fprintf(stderr, "fc-lcdemu error: input line exceeds MAX_WIDTH of %d pixels\n", MAX_WIDTH); exit(1); } pix16[npix++] = hexdecode(cp); cp += 4; } xi = convert_function(pix16, npix); XPutImage(mydisplay, mainwindow, mainwingc, xi, 0, 0, blitcol, blitrow, npix, 1); XDestroyImage(xi); } input_on_stdin(inbuf, incount) char *inbuf; { char *input_end = inbuf + incount; static char linebuf[1024]; static int linesz; char *cp; for (cp = inbuf; cp < input_end; cp++) { if (*cp == '\n') { linebuf[linesz] = '\0'; process_input_line(linebuf); linesz = 0; continue; } if (linesz < sizeof(linebuf) - 1) linebuf[linesz++] = *cp; } }