Initial release; probably doesn't compile. Will be good for non-graph…

…ical dimmer controlling, eventually...
icculus · Sep 2, 1999 · e1be86c · e1be86c
1 parent 906bb4c
commit e1be86c
Showing 1 changed file with 165 additions and 0 deletions.
diff --git a/console_dimmer.c b/console_dimmer.c
@@ -0,0 +1,165 @@
+/*
+ * This is a simple console-based lighting control program. It can be used
+ *  for shell scripts (for one shot lighting commands) such as this:
+ *
+ *    console_dimmer blackout 1
+ *
+ * ...to just kill all active lights. For example. This can also be used as
+ *  as interactive control program. If no commands are given on the command
+ *  line, then the program takes input and converts it to dimmer API calls.
+ *  Current levels are noted in interactive mode, and assuming you could type
+ *  fast enough, you could even use it to run a show.
+ *
+ *    Copyright (c) Lighting and Sound Technologies, 1999.
+ *     Written by Ryan C. Gordon.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "dimmer.h"
+
+
+static void inline displayHelp(void)
+/*
+ * Dump some help on available commands to stdout.
+ *
+ *   params : void.
+ *  returns : void.
+ */
+{
+    printf("Lighting and Sound Technologies Console Dimmer.\n"
+           "\n"
+           " Usage:\n"
+           "   start with no command line args for interactive mode.\n"
+           "   help\n"
+           "   set <channelnum> <0-255>\n"
+           "   fade <channelnum> <0-255> <seconds>\n"
+           "   blackout <0 or 1>\n"
+           "   gm <0-255>\n"
+          );
+} /* displayHelp */
+
+
+static int getNumbers(char **tokens, double *numbers, int needNums)
+/*
+ * Convert a bunch of tokens to numbers.
+ *
+ *    params : tokens  == array of tokens to convert.
+ *             numbers == where to fill in converted numbers.
+ *             needNums == number of numbers we want.
+ *   returns : 0 on success, -1 on error. Error messages are sent to
+ *              stderr here, so there's no need to reprint them in the
+ *              calling function.
+ */
+{
+    int i;
+
+    for (i = 0; i < needNums; i++)
+    {
+        if tokens[i] == NULL)
+        {
+            fprintf(stderr, "Too few arguments.\n");
+            return(-1);
+        } /* if */
+        else
+        {
+            numbers[i] = atof(tokens[i]);
+            /* !!! really a number? */
+        } /* else */
+    } /* for */
+
+    if (tokens[needNums] != NULL)
+    {
+        fprintf(stderr, "Too many arguments.\n");
+        return(-1);
+    } /* if */
+
+    return(0);
+} /* getNumbers */
+
+
+static void parseCommand(int tokenCount, char **tokens)
+/*
+ * Figure out which dimmer API we want to call, get the arguments, and do it.
+ *
+ *     params : tokenCount == number of tokens. Like argc.
+ *              tokens     == tokens. Like argv.
+ *    returns : void.
+ */
+{
+    double numbers[5];
+    int rc = 0;
+
+    if ((tokenCount <= 1) || (tokens == NULL) || (tokens[0] == NULL))
+        return;
+
+    if (strcasecmp(tokens[0], "help") == 0)
+        displayHelp();
+
+    else if (strcasecmp(tokens[0], "set") == 0)
+    {
+        if (getNumbers(&tokens[1], numbers, 2) == 0)
+            rc = dimmer_set_channel(numbers[0], numbers[1]);
+    } /* else if */
+
+    else if (strcasecmp(tokens[0], "fade") == 0)
+    {
+        if (getNumbers(&tokens[1], numbers, 3) == 0)
+            rc = dimmer_fade_channel(numbers[0], numbers[1], numbers[2]);
+    } /* else if */
+
+    else if (strcasecmp(tokens[0], "blackout") == 0)
+    {
+        if (getNumbers(&tokens[1], numbers, 1) == 0)
+            rc = dimmer_toggle_blackout(numbers[0]);
+    } /* else if */
+
+    else if (strcasecmp(tokens[0], "gm") == 0)
+    {
+        if (getNumbers(&tokens[1], numbers, 1) == 0)
+            rc = dimmer_set_grand_master((unsigned char) numbers[0]);
+    } /* else if */
+
+    else  /* unknown command. */
+        fprintf("Unknown command: [%s].\n", tokens[0]);
+
+    if (rc != 0)
+    {
+        fprintf(stderr, "Command [%s] failed. rc == (%d) errno == (%d).\n",
+                                            tokens[0], rc, errno);
+    } /* if */
+} /* parseCommand */
+
+
+static void interactiveMode(void)
+{
+    fprintf(stderr, "Interactive mode not yet written. printing help...\n\n");
+    displayHelp();
+} /* interactiveMode */
+
+
+int main(int argc, char **argv)
+/*
+ * The mainline. Initialize libdimmer, and figure out if we're in 
+ *  interactive mode, or a one-shot command line deal...
+ */
+{
+    if (dimmer_init() == -1)
+        perror("dimmer_init() failed: ");
+    else
+    {
+        if (argc == 1)
+            interactiveMode();
+        else
+            parseCommand(argc, argv);
+    } /* else */
+
+    return(0);
+} /* main */
+
+
+// Matt in Dallas:
+// 972-826-1229
+
+