--- /dev/null
+/* xscreensaver, Copyright (c) 2016 Jamie Zawinski <jwz@jwz.org>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation. No representations are made about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ *
+ * Utility functions related to the hacks/ APIs.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/utsname.h>
+#include <android/log.h>
+#include "screenhackI.h"
+#include "xlockmoreI.h"
+#include "textclient.h"
+
+#if defined(USE_IPHONE) || (HAVE_ANDROID)
+# include "jwzgles.h"
+#else
+# include <OpenGL/OpenGL.h>
+#endif
+
+#ifndef isupper
+# define isupper(c) ((c) >= 'A' && (c) <= 'Z')
+#endif
+#ifndef _tolower
+# define _tolower(c) ((c) - 'A' + 'a')
+#endif
+
+Bool
+get_boolean_resource (Display *dpy, char *res_name, char *res_class)
+{
+ char *tmp, buf [100];
+ char *s = get_string_resource (dpy, res_name, res_class);
+ char *os = s;
+ if (! s) return 0;
+ for (tmp = buf; *s; s++)
+ *tmp++ = isupper (*s) ? _tolower (*s) : *s;
+ *tmp = 0;
+ free (os);
+
+ while (*buf &&
+ (buf[strlen(buf)-1] == ' ' ||
+ buf[strlen(buf)-1] == '\t'))
+ buf[strlen(buf)-1] = 0;
+
+ if (!strcmp (buf, "on") || !strcmp (buf, "true") || !strcmp (buf, "yes"))
+ return 1;
+ if (!strcmp (buf,"off") || !strcmp (buf, "false") || !strcmp (buf,"no"))
+ return 0;
+ fprintf (stderr, "%s: %s must be boolean, not %s.\n",
+ progname, res_name, buf);
+ return 0;
+}
+
+int
+get_integer_resource (Display *dpy, char *res_name, char *res_class)
+{
+ int val;
+ char c, *s = get_string_resource (dpy, res_name, res_class);
+ char *ss = s;
+ if (!s) return 0;
+
+ while (*ss && *ss <= ' ') ss++; /* skip whitespace */
+
+ if (ss[0] == '0' && (ss[1] == 'x' || ss[1] == 'X')) /* 0x: parse as hex */
+ {
+ if (1 == sscanf (ss+2, "%x %c", (unsigned int *) &val, &c))
+ {
+ free (s);
+ return val;
+ }
+ }
+ else /* else parse as dec */
+ {
+ /* Allow integer values to end in ".0". */
+ int L = strlen(ss);
+ if (L > 2 && ss[L-2] == '.' && ss[L-1] == '0')
+ ss[L-2] = 0;
+
+ if (1 == sscanf (ss, "%d %c", &val, &c))
+ {
+ free (s);
+ return val;
+ }
+ }
+
+ fprintf (stderr, "%s: %s must be an integer, not %s.\n",
+ progname, res_name, s);
+ free (s);
+ return 0;
+}
+
+double
+get_float_resource (Display *dpy, char *res_name, char *res_class)
+{
+ double val;
+ char c, *s = get_string_resource (dpy, res_name, res_class);
+ if (! s) return 0.0;
+ if (1 == sscanf (s, " %lf %c", &val, &c))
+ {
+ free (s);
+ return val;
+ }
+ fprintf (stderr, "%s: %s must be a float, not %s.\n",
+ progname, res_name, s);
+ free (s);
+ return 0.0;
+}
+
+
+char *
+textclient_mobile_date_string (void)
+{
+ struct utsname uts;
+ if (uname (&uts) < 0)
+ return strdup("uname() failed");
+ else
+ {
+ time_t now = time ((time_t *) 0);
+ char *ts = ctime (&now);
+ char *buf, *s;
+ if ((s = strchr(uts.nodename, '.')))
+ *s = 0;
+ buf = (char *) malloc(strlen(uts.machine) +
+ strlen(uts.sysname) +
+ strlen(uts.release) +
+ strlen(ts) + 10);
+ sprintf (buf, "%s %s %s\n%s", uts.machine, uts.sysname, uts.release, ts);
+ return buf;
+ }
+}
+
+
+/* used by the OpenGL screen savers
+ */
+
+/* Does nothing - prepareContext already did the work.
+ */
+void
+glXMakeCurrent (Display *dpy, Window window, GLXContext context)
+{
+}
+
+
+/* clear away any lingering error codes */
+void
+clear_gl_error (void)
+{
+ while (glGetError() != GL_NO_ERROR)
+ ;
+}
+
+
+// needs to be implemented in Android...
+/* Copy the back buffer to the front buffer.
+ */
+void
+glXSwapBuffers (Display *dpy, Window window)
+{
+}
+
+
+/* Called by OpenGL savers using the XLockmore API.
+ */
+GLXContext *
+init_GL (ModeInfo *mi)
+{
+ // Window win = mi->window;
+
+ // Caller expects a pointer to an opaque struct... which it dereferences.
+ // Don't ask me, it's historical...
+ static int blort = -1;
+ return (void *) &blort;
+}
+
+/* report a GL error. */
+void
+check_gl_error (const char *type)
+{
+ char buf[100];
+ GLenum i;
+ const char *e;
+ switch ((i = glGetError())) {
+ case GL_NO_ERROR: return;
+ case GL_INVALID_ENUM: e = "invalid enum"; break;
+ case GL_INVALID_VALUE: e = "invalid value"; break;
+ case GL_INVALID_OPERATION: e = "invalid operation"; break;
+ case GL_STACK_OVERFLOW: e = "stack overflow"; break;
+ case GL_STACK_UNDERFLOW: e = "stack underflow"; break;
+ case GL_OUT_OF_MEMORY: e = "out of memory"; break;
+#ifdef GL_TABLE_TOO_LARGE_EXT
+ case GL_TABLE_TOO_LARGE_EXT: e = "table too large"; break;
+#endif
+#ifdef GL_TEXTURE_TOO_LARGE_EXT
+ case GL_TEXTURE_TOO_LARGE_EXT: e = "texture too large"; break;
+#endif
+ default:
+ e = buf; sprintf (buf, "unknown GL error %d", (int) i); break;
+ }
+ __android_log_write(ANDROID_LOG_ERROR, "xscreensaver", e);
+}
projects / xscreensaver / blobdiff