Added initial psplash sources

git-svn-id: http://svn.o-hand.com/repos/misc/trunk/psplash@125 f5eea0f0-44ea-0310-b729-df5b855dafe5

Makefile.am

@@ -0,0 +1,16 @@
+bin_PROGRAMS=psplash psplash-write
+
+AM_CFLAGS = $(GCC_FLAGS) -D_GNU_SOURCE
+
+psplash_SOURCES = psplash.c psplash.h psplash-fb.c psplash-fb.h \
+                  psplash-console.c psplash-console.h psplash-image.h
+
+psplash_write_SOURCES = psplash-write.c psplash.h
+
+EXTRA_DIST = make-image-header.sh
+
+MAINTAINERCLEANFILES = aclocal.m4 compile config.guess config.sub configure depcomp install-sh ltmain.sh Makefile.in missing
+
+snapshot:
+	$(MAKE) dist distdir=$(PACKAGE)-snap`date +"%Y%m%d"`
+

autogen.sh

@@ -0,0 +1,3 @@
+#! /bin/sh
+autoreconf -v --install || exit 1
+./configure --enable-maintainer-mode "$@"

configure.ac

@@ -0,0 +1,20 @@
+AC_PREREQ(2.53)
+AC_INIT(psplash, 0.0, [http://bugzilla.o-hand.com/enter_bug.cgi?product=psplash])
+AM_INIT_AUTOMAKE()
+AC_CONFIG_SRCDIR(psplash.c)
+AM_CONFIG_HEADER(config.h)
+AM_MAINTAINER_MODE
+
+AC_ISC_POSIX
+AC_PROG_CC
+AC_STDC_HEADERS
+
+if test "x$GCC" = "xyes"; then
+        GCC_FLAGS="-g -Wall"
+fi
+
+AC_SUBST(GCC_FLAGS)
+
+AC_OUTPUT([
+Makefile
+])

make-image-header.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+imageh=psplash-image.h
+gdk-pixbuf-csource --macros $1 > $imageh.tmp
+sed -e 's/MY_PIXBUF/IMG/g' -e "s/guint8/uint8/g" $imageh.tmp > $imageh && rm $imageh.tmp
+
+

psplash-console.c

@@ -0,0 +1,195 @@
+/* 
+ *  pslash - a lightweight framebuffer splashscreen for embedded devices. 
+ *
+ *  Copyright (c) 2006 Matthew Allum <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ */
+
+#include "psplash.h"
+
+/* Globals, needed for signal handling */
+static int ConsoleFd      = -1;
+static int VTNum          = -1;
+static int VTNumInitial   = -1;
+static int Visible        =  1;
+
+static void
+vt_request (int sig)
+{
+  DBG("mark, visible:%i", Visible);
+
+  if (Visible)
+    {
+      /* Allow Switch Away */
+      if (ioctl (ConsoleFd, VT_RELDISP, 1) < 0)
+	perror("Error cannot switch away from console");
+      Visible = 0;
+
+      /* FIXME: 
+       * We likely now want to signal the main loop as to exit	 
+       * and we've now likely switched to the X tty. Note, this
+       * seems to happen anyway atm due to select() call getting
+       * a signal interuption error - not sure if this is really
+       * reliable however. 
+      */
+    }
+  else
+    {
+      if (ioctl (ConsoleFd, VT_RELDISP, VT_ACKACQ))
+	perror ("Error can't acknowledge VT switch");
+      Visible = 1;
+      /* FIXME: need to schedule repaint some how ? */
+    }
+}
+
+static void
+psplash_console_ignore_switches (void)
+{
+  struct sigaction    act;
+  struct vt_mode      vt_mode;
+
+  if (ioctl(ConsoleFd, VT_GETMODE, &vt_mode) < 0)
+    {
+      perror("Error VT_SETMODE failed");
+      return;
+    }
+
+  act.sa_handler = SIG_IGN;
+  sigemptyset (&act.sa_mask);
+  act.sa_flags = 0;
+  sigaction (SIGUSR1, &act, 0);
+
+  vt_mode.mode = VT_AUTO;
+  vt_mode.relsig = 0;
+  vt_mode.acqsig = 0;
+
+  if (ioctl(ConsoleFd, VT_SETMODE, &vt_mode) < 0)
+    perror("Error VT_SETMODE failed");
+}
+
+static void
+psplash_console_handle_switches (void)
+{
+  struct sigaction    act;
+  struct vt_mode      vt_mode;
+
+  if (ioctl(ConsoleFd, VT_GETMODE, &vt_mode) < 0)
+    {
+      perror("Error VT_SETMODE failed");
+      return;
+    }
+
+  act.sa_handler = vt_request;
+  sigemptyset (&act.sa_mask);
+  act.sa_flags = 0;
+  sigaction (SIGUSR1, &act, 0);
+
+  vt_mode.mode   = VT_PROCESS;
+  vt_mode.relsig = SIGUSR1;
+  vt_mode.acqsig = SIGUSR1;
+
+  if (ioctl(ConsoleFd, VT_SETMODE, &vt_mode) < 0)
+    perror("Error VT_SETMODE failed");
+}
+
+void 
+psplash_console_switch (void) 
+{
+  char           vtname[10];
+  int            fd;
+  struct vt_stat vt_state;
+
+  if ((fd = open("/dev/tty0",O_WRONLY,0)) < 0)
+    {
+      perror("Error Cannot open /dev/tty0");
+      return;
+    }
+
+  /* Find next free terminal */
+  if ((ioctl(fd, VT_OPENQRY, &VTNum) < 0))
+    {
+      perror("Error unable to find a free virtual terminal");
+      close(fd);
+      return;
+    }
+
+  close(fd);
+
+  sprintf(vtname,"/dev/tty%d", VTNum);
+
+  if ((ConsoleFd = open(vtname, O_RDWR|O_NDELAY, 0)) < 0)
+    {
+      fprintf(stderr, "Error cannot open %s: %s\n", vtname, strerror(errno));
+      return;
+    }
+
+  if (ioctl(ConsoleFd, VT_GETSTATE, &vt_state) == 0)
+    VTNumInitial = vt_state.v_active;
+
+  /* Switch to new free terminal */
+
+  psplash_console_ignore_switches ();
+
+  if (ioctl(ConsoleFd, VT_ACTIVATE, VTNum) != 0)
+    perror("Error VT_ACTIVATE failed");
+
+  if (ioctl(ConsoleFd, VT_WAITACTIVE, VTNum) != 0)
+    perror("Error VT_WAITACTIVE failed\n");
+
+  psplash_console_handle_switches ();
+
+  if (ioctl(ConsoleFd, KDSETMODE, KD_GRAPHICS) < 0)
+    perror("Error KDSETMODE KD_GRAPHICS failed\n");
+
+  return;
+}
+
+void
+psplash_console_reset (void)
+{
+  int              fd;
+  struct vt_stat   vt_state;
+
+  if (ConsoleFd < 0)
+    return;
+
+  /* Back to text mode */
+  ioctl(ConsoleFd, KDSETMODE, KD_TEXT); 
+
+  psplash_console_ignore_switches ();
+
+  /* Attempt to switch back to initial console if were still active */
+  ioctl (ConsoleFd, VT_GETSTATE, &vt_state);
+
+  if (VTNum == vt_state.v_active)
+    {
+      if (VTNumInitial > -1)
+        {
+	  ioctl (ConsoleFd, VT_ACTIVATE, VTNumInitial);
+	  ioctl (ConsoleFd, VT_WAITACTIVE, VTNumInitial);
+	  VTNumInitial = -1;
+        }
+    }
+
+  /* Cleanup */
+
+  close(ConsoleFd); 
+
+  if ((fd = open ("/dev/tty0", O_RDWR|O_NDELAY, 0)) >= 0)
+    {
+      ioctl (fd, VT_DISALLOCATE, VTNum);
+      close (fd);
+    }
+
+  return;
+}

psplash-console.h

@@ -0,0 +1,27 @@
+/* 
+ *  pslash - a lightweight framebuffer splashscreen for embedded devices. 
+ *
+ *  Copyright (c) 2006 Matthew Allum <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ */
+
+#ifndef _HAVE_PSPLASH_CONSOLE_H
+#define _HAVE_PSPLASH_CONSOLE_H
+
+void 
+psplash_console_switch (void); 
+
+void
+psplash_console_reset (void);
+
+#endif