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Added initial support for PicoGUI (thanks Micah!)

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slouken committed Aug 1, 2002
1 parent ac1213d commit f456a570e8e6489859b9009bbe140f10561a126c
@@ -30,6 +30,7 @@ EXTRA_DIST = \
README.MacOSX \
README.MiNT \
README.NanoX \
README.PicoGUI \
README.QNX \
README.Qtopia \
README.WinCE \
@@ -0,0 +1,50 @@
========================
Using SDL with PicoGUI
========================

- Originally contributed by Micah Dowty <micahjd@users.sourceforge.net>

PicoGUI is a scalable GUI system with a unique architecture, primarily focused
on scalability to various embedded systems. You can find more information
including a FAQ at http://picogui.org

To use the patch:

1. When compiling, add the "--enable-video-picogui" switch to ./configure

2. When running your program, ensure that the picogui driver for SDL
is in use by setting the SDL_VIDEODRIVER environment variable
to "picogui".

3. The program must also be linked to the C client library for PicoGUI
(libpgui.so). If the program is being compiled with a patched SDL
installed this should be done automatically. If you want to use an
existing binary with PicoGUI, you can set the LD_PRELOAD environment
variable to the path of your libpgui.so file.

Capabilities:

So far only basic functionality is provided on true color (linear16/24/32)
devices. Accessing a memory mapped bitmap, updating the display, and handling
mouse/keyboard input. This functionality has been tested with several
applications, including mplayer, Xine, sldroids, and Abuse.

TODO list:

- YUV overlays will be helpful for watching video on set top boxes or other
embedded devices that have some graphics acceleration hardware

- Account for rotated bitmap storage in pgserver

- Support for hiding or changing the cursor

- The display should be centered when the SDL application is smaller
than the PicoGUI panel

- Fullscreen or any other special modes

- Support for indexed and grayscale modes

- Probably much more...

--- The End ---
@@ -1470,6 +1470,32 @@ CheckQtopia()
fi
}

dnl Set up the PicoGUI video driver if enabled
CheckPicoGUI()
{
AC_ARG_ENABLE(video-picogui,
[ --enable-video-picogui use PicoGUI video driver [default=no]],
, enable_video_picogui=no)
if test x$enable_video = xyes -a x$enable_video_picogui = xyes; then
AC_MSG_CHECKING(for PicoGUI support)
video_picogui=no
AC_TRY_COMPILE([
#include <picogui.h>
],[
],[
video_picogui=yes
])
AC_MSG_RESULT($video_picogui)
if test x$video_picogui = xyes; then
SDL_LIBS="$SDL_LIBS -lpgui"
CFLAGS="$CFLAGS -DENABLE_PICOGUI"
VIDEO_SUBDIRS="$VIDEO_SUBDIRS picogui"
VIDEO_DRIVERS="$VIDEO_DRIVERS picogui/libvideo_picogui.la"
fi
AC_LANG_C
fi
}

dnl Set up the Mac toolbox video driver for Mac OS 7-9
CheckTOOLBOX()
{
@@ -1676,6 +1702,7 @@ case "$target" in
CheckSVGA
CheckAAlib
CheckQtopia
CheckPicoGUI
CheckOpenGL
CheckInputEvents
CheckPTHREAD
@@ -2602,6 +2629,7 @@ src/video/ataricommon/Makefile
src/video/xbios/Makefile
src/video/gem/Makefile
src/video/qtopia/Makefile
src/video/picogui/Makefile
src/events/Makefile
src/joystick/Makefile
src/joystick/amigaos/Makefile
@@ -16,6 +16,7 @@ <H2>
Major changes since SDL 1.0.0:
</H2>
<UL>
<LI> 1.2.5: Added initial support for PicoGUI (thanks Micah!)
<LI> 1.2.5: Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha
<LI> 1.2.5: Fixed setting OpenGL mode multiple times on Windows
<LI> 1.2.5: Added support for Qtopia on embedded systems (thanks David!)
@@ -8,7 +8,7 @@ SUBDIRS = @VIDEO_SUBDIRS@
DIST_SUBDIRS = dummy x11 dga nanox fbcon directfb vgl svga ggi aalib \
wincommon windib windx5 \
maccommon macdsp macrom quartz \
bwindow ps2gs photon cybergfx epoc \
bwindow ps2gs photon cybergfx epoc picogui \
ataricommon xbios gem XFree86

DRIVERS = @VIDEO_DRIVERS@
@@ -401,6 +401,9 @@ extern VideoBootStrap GEM_bootstrap;
#ifdef ENABLE_QTOPIA
extern VideoBootStrap Qtopia_bootstrap;
#endif
#ifdef ENABLE_PICOGUI
extern VideoBootStrap PG_bootstrap;
#endif
/* This is the current video device */
extern SDL_VideoDevice *current_video;

@@ -113,6 +113,9 @@ static VideoBootStrap *bootstrap[] = {
#endif
#ifdef ENABLE_QTOPIA
&Qtopia_bootstrap,
#endif
#ifdef ENABLE_PICOGUI
&PG_bootstrap,
#endif
NULL
};
@@ -0,0 +1,6 @@
Makefile.in
Makefile
.libs
*.o
*.lo
*.la
@@ -0,0 +1,13 @@

## Makefile.am for SDL using the PicoGUI video driver

noinst_LTLIBRARIES = libvideo_picogui.la
libvideo_picogui_la_SOURCES = $(PICOGUI_SRCS)

# The SDL PicoGUI video driver sources
PICOGUI_SRCS = \
SDL_pgevents.c \
SDL_pgevents_c.h \
SDL_pgvideo.c \
SDL_pgvideo.h

@@ -0,0 +1,121 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
Micah Dowty
micahjd@users.sourceforge.net
*/

#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif

#include "SDL.h"
#include "SDL_sysevents.h"
#include "SDL_events_c.h"
#include "SDL_pgvideo.h"
#include "SDL_pgevents_c.h"

int PG_HandleClose(struct pgEvent *evt)
{
SDL_PrivateQuit();
return 1; /* Intercept the event's normal quit handling */
}

int PG_HandleResize(struct pgEvent *evt)
{
SDL_PrivateResize(evt->e.size.w, evt->e.size.h);
return 0;
}

int PG_HandleKey(struct pgEvent *evt)
{
SDL_keysym sym;
memset(&sym,0,sizeof(sym));
sym.sym = evt->e.kbd.key;
sym.mod = evt->e.kbd.mods;
SDL_PrivateKeyboard(evt->type == PG_WE_KBD_KEYDOWN, &sym);
return 0;
}

int PG_HandleChar(struct pgEvent *evt)
{
SDL_keysym sym;
memset(&sym,0,sizeof(sym));
sym.unicode = evt->e.kbd.key;
sym.mod = evt->e.kbd.mods;
SDL_PrivateKeyboard(evt->type == PG_WE_KBD_KEYDOWN, &sym);
return 0;
}

int PG_HandleMouseButton(struct pgEvent *evt)
{
/* We need to focus the canvas when it's clicked */
if (evt->extra) {
SDL_VideoDevice *this = (SDL_VideoDevice *) evt->extra;
pgFocus(this->hidden->wCanvas);
}
SDL_PrivateMouseButton(evt->type == PG_WE_PNTR_DOWN, evt->e.pntr.chbtn,
evt->e.pntr.x, evt->e.pntr.y);
return 0;
}

int PG_HandleMouseMotion(struct pgEvent *evt)
{
SDL_PrivateMouseMotion(evt->e.pntr.btn,0,evt->e.pntr.x, evt->e.pntr.y);
return 0;
}

void PG_PumpEvents(_THIS)
{
/* Process all pending events */
pgEventPoll();
}

void PG_InitOSKeymap(_THIS)
{
/* We need no keymap */
}

void PG_InitEvents(_THIS)
{
/* Turn on all the mouse and keyboard triggers for our canvas, normally less important
* events like mouse movement are ignored to save bandwidth. */
pgSetWidget(this->hidden->wCanvas, PG_WP_TRIGGERMASK,
pgGetWidget(this->hidden->wCanvas, PG_WP_TRIGGERMASK) |
PG_TRIGGER_UP | PG_TRIGGER_DOWN | PG_TRIGGER_MOVE |
PG_TRIGGER_KEYUP | PG_TRIGGER_KEYDOWN | PG_TRIGGER_CHAR,0);

/* Start our canvas out focused, so we get keyboard input */
pgFocus(this->hidden->wCanvas);

/* Set up bindings for all the above event handlers */
pgBind(this->hidden->wApp, PG_WE_CLOSE, &PG_HandleClose, NULL);
pgBind(this->hidden->wCanvas, PG_WE_BUILD, &PG_HandleResize, NULL);
pgBind(this->hidden->wCanvas, PG_WE_KBD_CHAR, &PG_HandleChar, NULL);
pgBind(this->hidden->wCanvas, PG_WE_KBD_KEYUP, &PG_HandleKey, NULL);
pgBind(this->hidden->wCanvas, PG_WE_KBD_KEYDOWN, &PG_HandleKey, NULL);
pgBind(this->hidden->wCanvas, PG_WE_PNTR_MOVE, &PG_HandleMouseMotion, NULL);
pgBind(this->hidden->wCanvas, PG_WE_PNTR_UP, &PG_HandleMouseButton, NULL);
pgBind(this->hidden->wCanvas, PG_WE_PNTR_DOWN, &PG_HandleMouseButton, this);
}

/* end of SDL_pgevents.c ... */
@@ -0,0 +1,41 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
Micah Dowty
micahjd@users.sourceforge.net
*/

#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif

#include "SDL_pgvideo.h"

/* Variables and functions exported by SDL_sysevents.c to other parts
of the native video subsystem (SDL_sysvideo.c)
*/
extern void PG_PumpEvents(_THIS);
extern void PG_InitEvents(_THIS);
extern void PG_InitOSKeymap(_THIS);

/* end of SDL_pgevents_c.h ... */

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