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Raspberry Pi support (also unified UDEV and EVDEV support)

This commit is contained in:
Gabriel Jacobo 2013-09-28 13:28:19 -03:00
parent b9a2230806
commit 9ceed73db4
21 changed files with 2331 additions and 46 deletions
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48
README-raspberrypi.txt Normal file
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@ -0,0 +1,48 @@
================================================================================
SDL2 for Raspberry Pi
================================================================================
Requirements:
Raspbian (other Linux distros may work as well).
================================================================================
Features
================================================================================
* Works without X11
* Hardware accelerated OpenGL ES 2.x
* Sound via ALSA
* Input (mouse/keyboard/joystick) via EVDEV
* Hotplugging of input devices via UDEV
================================================================================
Raspbian Build Dependencies
================================================================================
sudo apt-get install libudev-dev libasound2-dev
You also need the VideoCore binary stuff that ships in /opt/vc for EGL and
OpenGL ES 2.x, it usually comes pre installed, but in any case:
sudo apt-get install libraspberrypi0 libraspberrypi-bin libraspberrypi-dev
================================================================================
No HDMI Audio
================================================================================
If you notice that ALSA works but there's no audio over HDMI, try adding:
hdmi_drive=2
to your config.txt file and reboot.
Reference: http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5062
================================================================================
Notes
================================================================================
* Building has only been tested natively (i.e. not cross compiled). Cross
compilation might work though, feedback is welcome!
* No Text Input yet.

8
build-scripts/config.guess vendored
View File

@ -896,12 +896,16 @@ EOF
then
echo ${UNAME_MACHINE}-unknown-linux-gnu
else
case `sed -n '/^Hardware/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
BCM2708) MANUFACTURER=raspberry;;
*) MANUFACTURER=unknown;;
esac
if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
| grep -q __ARM_PCS_VFP
then
echo ${UNAME_MACHINE}-unknown-linux-gnueabi
echo ${UNAME_MACHINE}-${MANUFACTURER}-linux-gnueabi
else
echo ${UNAME_MACHINE}-unknown-linux-gnueabihf
echo ${UNAME_MACHINE}-${MANUFACTURER}-linux-gnueabihf
fi
fi
exit ;;

23
configure vendored
View File

@ -22028,6 +22028,21 @@ fi
case "$host" in
*-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
case "$host" in
*-raspberry-linux*)
# Raspberry Pi
ARCH=linux
RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
RPI_LDFLAGS="-L/opt/vc/lib -lbcm_host"
CFLAGS="$CFLAGS $RPI_CFLAGS"
SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
SDL_LIBS="$SDL_LIBS $RPI_LDFLAGS"
if test x$enable_video = xyes; then
SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
$as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
fi
;;
*-*-linux*) ARCH=linux ;;
*-*-uclinux*) ARCH=linux ;;
*-*-kfreebsd*-gnu) ARCH=kfreebsd-gnu ;;
@ -22151,6 +22166,14 @@ $as_echo "#define SDL_TIMER_UNIX 1" >>confdefs.h
SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
have_timers=yes
fi
# Set up files for udev hotplugging support
if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"
fi
# Set up files for evdev input
if test x$use_input_events = xyes; then
SOURCES="$SOURCES $srcdir/src/input/evdev/*.c"
fi
;;
*-*-cygwin* | *-*-mingw32*)
ARCH=win32

23
configure.in
View File

@ -2343,6 +2343,21 @@ dnl Set up the configuration based on the host platform!
case "$host" in
*-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
case "$host" in
*-raspberry-linux*)
# Raspberry Pi
ARCH=linux
RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
RPI_LDFLAGS="-L/opt/vc/lib -lbcm_host"
CFLAGS="$CFLAGS $RPI_CFLAGS"
SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
SDL_LIBS="$SDL_LIBS $RPI_LDFLAGS"
if test x$enable_video = xyes; then
SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
$as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
fi
;;
*-*-linux*) ARCH=linux ;;
*-*-uclinux*) ARCH=linux ;;
*-*-kfreebsd*-gnu) ARCH=kfreebsd-gnu ;;
@ -2450,6 +2465,14 @@ case "$host" in
SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
have_timers=yes
fi
# Set up files for udev hotplugging support
if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"
fi
# Set up files for evdev input
if test x$use_input_events = xyes; then
SOURCES="$SOURCES $srcdir/src/input/evdev/*.c"
fi
;;
*-*-cygwin* | *-*-mingw32*)
ARCH=win32

1
include/SDL_config.h.in
View File

@ -259,6 +259,7 @@
#undef SDL_VIDEO_DRIVER_DUMMY
#undef SDL_VIDEO_DRIVER_WINDOWS
#undef SDL_VIDEO_DRIVER_X11
#undef SDL_VIDEO_DRIVER_RPI
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR

404
src/core/linux/SDL_udev.c Normal file
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@ -0,0 +1,404 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/*
* To list the properties of a device, try something like:
* udevadm info -a -n snd/hwC0D0 (for a sound card)
* udevadm info --query=all -n input/event3 (for a keyboard, mouse, etc)
* udevadm info --query=property -n input/event2
*/
#include "SDL_udev.h"
#ifdef SDL_USE_LIBUDEV
static char* SDL_UDEV_LIBS[] = { "libudev.so.1", "libudev.so.0" };
#define _THIS SDL_UDEV_PrivateData *_this
static _THIS = NULL;
#include "SDL.h"
static SDL_bool SDL_UDEV_load_sym(const char *fn, void **addr);
static int SDL_UDEV_load_syms(void);
static SDL_bool SDL_UDEV_hotplug_update_available(void);
static void device_event(SDL_UDEV_deviceevent type, struct udev_device *dev);
static SDL_bool
SDL_UDEV_load_sym(const char *fn, void **addr)
{
*addr = SDL_LoadFunction(_this->udev_handle, fn);
if (*addr == NULL) {
/* Don't call SDL_SetError(): SDL_LoadFunction already did. */
return SDL_FALSE;
}
return SDL_TRUE;
}
static int
SDL_UDEV_load_syms(void)
{
/* cast funcs to char* first, to please GCC's strict aliasing rules. */
#define SDL_UDEV_SYM(x) \
if (!SDL_UDEV_load_sym(#x, (void **) (char *) & _this->x)) return -1
SDL_UDEV_SYM(udev_device_get_action);
SDL_UDEV_SYM(udev_device_get_devnode);
SDL_UDEV_SYM(udev_device_get_subsystem);
SDL_UDEV_SYM(udev_device_get_property_value);
SDL_UDEV_SYM(udev_device_new_from_syspath);
SDL_UDEV_SYM(udev_device_unref);
SDL_UDEV_SYM(udev_enumerate_add_match_property);
SDL_UDEV_SYM(udev_enumerate_add_match_subsystem);
SDL_UDEV_SYM(udev_enumerate_get_list_entry);
SDL_UDEV_SYM(udev_enumerate_new);
SDL_UDEV_SYM(udev_enumerate_scan_devices);
SDL_UDEV_SYM(udev_enumerate_unref);
SDL_UDEV_SYM(udev_list_entry_get_name);
SDL_UDEV_SYM(udev_list_entry_get_next);
SDL_UDEV_SYM(udev_monitor_enable_receiving);
SDL_UDEV_SYM(udev_monitor_filter_add_match_subsystem_devtype);
SDL_UDEV_SYM(udev_monitor_get_fd);
SDL_UDEV_SYM(udev_monitor_new_from_netlink);
SDL_UDEV_SYM(udev_monitor_receive_device);
SDL_UDEV_SYM(udev_monitor_unref);
SDL_UDEV_SYM(udev_new);
SDL_UDEV_SYM(udev_unref);
SDL_UDEV_SYM(udev_device_new_from_devnum);
SDL_UDEV_SYM(udev_device_get_devnum);
#undef SDL_UDEV_SYM
return 0;
}
static SDL_bool
SDL_UDEV_hotplug_update_available(void)
{
if (_this->udev_mon != NULL) {
const int fd = _this->udev_monitor_get_fd(_this->udev_mon);
fd_set fds;
struct timeval tv;
FD_ZERO(&fds);
FD_SET(fd, &fds);
tv.tv_sec = 0;
tv.tv_usec = 0;
if ((select(fd+1, &fds, NULL, NULL, &tv) > 0) && (FD_ISSET(fd, &fds))) {
return SDL_TRUE;
}
}
return SDL_FALSE;
}
int
SDL_UDEV_Init(void)
{
int retval = 0;
if (_this == NULL) {
_this = (SDL_UDEV_PrivateData *) SDL_calloc(1, sizeof(*_this));
if(_this == NULL) {
return SDL_OutOfMemory();
}
retval = SDL_UDEV_LoadLibrary();
if (retval < 0) {
SDL_UDEV_Quit();
return retval;
}
/* Set up udev monitoring
* Listen for input devices (mouse, keyboard, joystick, etc) and sound devices
*/
_this->udev = _this->udev_new();
if (_this->udev == NULL) {
SDL_UDEV_Quit();
return SDL_SetError("udev_new() failed");
}
_this->udev_mon = _this->udev_monitor_new_from_netlink(_this->udev, "udev");
if (_this->udev_mon == NULL) {
SDL_UDEV_Quit();
return SDL_SetError("udev_monitor_new_from_netlink() failed");
}
_this->udev_monitor_filter_add_match_subsystem_devtype(_this->udev_mon, "input", NULL);
_this->udev_monitor_filter_add_match_subsystem_devtype(_this->udev_mon, "sound", NULL);
_this->udev_monitor_enable_receiving(_this->udev_mon);
/* Do an initial scan of existing devices */
SDL_UDEV_Scan();
}
_this->ref_count += 1;
return retval;
}
void
SDL_UDEV_Quit(void)
{
SDL_UDEV_CallbackList *item;
if (_this == NULL) {
return;
}
_this->ref_count -= 1;
if (_this->ref_count < 1) {
if (_this->udev_mon != NULL) {
_this->udev_monitor_unref(_this->udev_mon);
_this->udev_mon = NULL;
}
if (_this->udev != NULL) {
_this->udev_unref(_this->udev);
_this->udev = NULL;
}
/* Remove existing devices */
while (_this->first != NULL) {
item = _this->first;
_this->first = _this->first->next;
SDL_free(item);
}
SDL_UDEV_UnloadLibrary();
SDL_free(_this);
_this = NULL;
}
}
void
SDL_UDEV_Scan(void)
{
struct udev_enumerate *enumerate = NULL;
struct udev_list_entry *devs = NULL;
struct udev_list_entry *item = NULL;
if (_this == NULL) {
return;
}
enumerate = _this->udev_enumerate_new(_this->udev);
if (enumerate == NULL) {
SDL_UDEV_Quit();
SDL_SetError("udev_monitor_new_from_netlink() failed");
return;
}
_this->udev_enumerate_add_match_subsystem(enumerate, "input");
_this->udev_enumerate_add_match_subsystem(enumerate, "sound");
_this->udev_enumerate_scan_devices(enumerate);
devs = _this->udev_enumerate_get_list_entry(enumerate);
for (item = devs; item; item = _this->udev_list_entry_get_next(item)) {
const char *path = _this->udev_list_entry_get_name(item);
struct udev_device *dev = _this->udev_device_new_from_syspath(_this->udev, path);
if (dev != NULL) {
device_event(SDL_UDEV_DEVICEADDED, dev);
_this->udev_device_unref(dev);
}
}
_this->udev_enumerate_unref(enumerate);
}
void
SDL_UDEV_UnloadLibrary(void)
{
if (_this == NULL) {
return;
}
if (_this->udev_handle != NULL) {
SDL_UnloadObject(_this->udev_handle);
_this->udev_handle = NULL;
}
}
int
SDL_UDEV_LoadLibrary(void)
{
int retval = 0, i;
if (_this == NULL) {
return SDL_SetError("UDEV not initialized");
}
if (_this->udev_handle == NULL) {
for( i = 0 ; i < SDL_arraysize(SDL_UDEV_LIBS); i++) {
_this->udev_handle = SDL_LoadObject(SDL_UDEV_LIBS[i]);
if (_this->udev_handle != NULL) {
retval = SDL_UDEV_load_syms();
if (retval < 0) {
SDL_UDEV_UnloadLibrary();
}
else {
break;
}
}
}
if (_this->udev_handle == NULL) {
retval = -1;
/* Don't call SDL_SetError(): SDL_LoadObject already did. */
}
}
return retval;
}
static void
device_event(SDL_UDEV_deviceevent type, struct udev_device *dev)
{
const char *subsystem;
const char *val = NULL;
SDL_UDEV_deviceclass devclass = 0;
const char *path;
SDL_UDEV_CallbackList *item;
path = _this->udev_device_get_devnode(dev);
if (path == NULL) {
return;
}
subsystem = _this->udev_device_get_subsystem(dev);
if (SDL_strcmp(subsystem, "sound") == 0) {
devclass = SDL_UDEV_DEVICE_SOUND;
}
else if (SDL_strcmp(subsystem, "input") == 0) {
val = _this->udev_device_get_property_value(dev, "ID_INPUT_JOYSTICK");
if (val != NULL && SDL_strcmp(val, "1") == 0 ) {
devclass = SDL_UDEV_DEVICE_JOYSTICK;
}
if (devclass == 0) {
val = _this->udev_device_get_property_value(dev, "ID_INPUT_MOUSE");
if (val != NULL && SDL_strcmp(val, "1") == 0 ) {
devclass = SDL_UDEV_DEVICE_MOUSE;
}
}
if (devclass == 0) {
val = _this->udev_device_get_property_value(dev, "ID_INPUT_KEYBOARD");
if (val != NULL && SDL_strcmp(val, "1") == 0 ) {
devclass = SDL_UDEV_DEVICE_KEYBOARD;
}
}
if (devclass == 0) {
return;
}
}
else {
return;
}
/* Process callbacks */
for (item = _this->first; item != NULL; item = item->next) {
item->callback(type, devclass, path);
}
}
void
SDL_UDEV_Poll(void)
{
struct udev_device *dev = NULL;
const char *action = NULL;
if (_this == NULL) {
return;
}
while (SDL_UDEV_hotplug_update_available()) {
dev = _this->udev_monitor_receive_device(_this->udev_mon);
if (dev == NULL) {
break;
}
action = _this->udev_device_get_action(dev);
if (SDL_strcmp(action, "add") == 0) {
device_event(SDL_UDEV_DEVICEADDED, dev);
} else if (SDL_strcmp(action, "remove") == 0) {
device_event(SDL_UDEV_DEVICEREMOVED, dev);
}
_this->udev_device_unref(dev);
}
}
int
SDL_UDEV_AddCallback(SDL_UDEV_Callback cb)
{
SDL_UDEV_CallbackList *item;
item = (SDL_UDEV_CallbackList *) SDL_calloc(1, sizeof (SDL_UDEV_CallbackList));
if (item == NULL) {
return SDL_OutOfMemory();
}
item->callback = cb;
if (_this->last == NULL) {
_this->first = _this->last = item;
} else {
_this->last->next = item;
_this->last = item;
}
return 1;
}
void
SDL_UDEV_DelCallback(SDL_UDEV_Callback cb)
{
SDL_UDEV_CallbackList *item;
SDL_UDEV_CallbackList *prev = NULL;
for (item = _this->first; item != NULL; item = item->next) {
/* found it, remove it. */
if (item->callback == cb) {
if (prev != NULL) {
prev->next = item->next;
} else {
SDL_assert(_this->first == item);
_this->first = item->next;
}
if (item == _this->last) {
_this->last = prev;
}
SDL_free(item);
return;
}
prev = item;
}
}
#endif /* SDL_USE_LIBUDEV */

114
src/core/linux/SDL_udev.h Normal file
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@ -0,0 +1,114 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#ifndef _SDL_udev_h
#define _SDL_udev_h
#if HAVE_LIBUDEV_H
#ifndef SDL_USE_LIBUDEV
#define SDL_USE_LIBUDEV 1
#endif
#include "SDL_loadso.h"
#include "SDL_events.h"
#include <libudev.h>
#include <sys/time.h>
#include <sys/types.h>
/**
* \brief Device type
*/
typedef enum
{
SDL_UDEV_DEVICEADDED = 0x0001,
SDL_UDEV_DEVICEREMOVED
} SDL_UDEV_deviceevent;
typedef enum
{
SDL_UDEV_DEVICE_MOUSE = 0x0001,
SDL_UDEV_DEVICE_KEYBOARD,
SDL_UDEV_DEVICE_JOYSTICK,
SDL_UDEV_DEVICE_SOUND
} SDL_UDEV_deviceclass;
typedef void (*SDL_UDEV_Callback)(SDL_UDEV_deviceevent udev_type, SDL_UDEV_deviceclass udev_class, const char *devpath);
typedef struct SDL_UDEV_CallbackList {
SDL_UDEV_Callback callback;
struct SDL_UDEV_CallbackList *next;
} SDL_UDEV_CallbackList;
typedef struct SDL_UDEV_PrivateData
{
const char *udev_library;
void *udev_handle;
struct udev *udev;
struct udev_monitor *udev_mon;
int ref_count;
SDL_UDEV_CallbackList *first, *last;
/* Function pointers */
const char *(*udev_device_get_action)(struct udev_device *);
const char *(*udev_device_get_devnode)(struct udev_device *);
const char *(*udev_device_get_subsystem)(struct udev_device *);
const char *(*udev_device_get_property_value)(struct udev_device *, const char *);
struct udev_device *(*udev_device_new_from_syspath)(struct udev *, const char *);
void (*udev_device_unref)(struct udev_device *);
int (*udev_enumerate_add_match_property)(struct udev_enumerate *, const char *, const char *);
int (*udev_enumerate_add_match_subsystem)(struct udev_enumerate *, const char *);
struct udev_list_entry *(*udev_enumerate_get_list_entry)(struct udev_enumerate *);
struct udev_enumerate *(*udev_enumerate_new)(struct udev *);
int (*udev_enumerate_scan_devices)(struct udev_enumerate *);
void (*udev_enumerate_unref)(struct udev_enumerate *);
const char *(*udev_list_entry_get_name)(struct udev_list_entry *);
struct udev_list_entry *(*udev_list_entry_get_next)(struct udev_list_entry *);
int (*udev_monitor_enable_receiving)(struct udev_monitor *);
int (*udev_monitor_filter_add_match_subsystem_devtype)(struct udev_monitor *, const char *, const char *);
int (*udev_monitor_get_fd)(struct udev_monitor *);
struct udev_monitor *(*udev_monitor_new_from_netlink)(struct udev *, const char *);
struct udev_device *(*udev_monitor_receive_device)(struct udev_monitor *);
void (*udev_monitor_unref)(struct udev_monitor *);
struct udev *(*udev_new)(void);
void (*udev_unref)(struct udev *);
struct udev_device * (*udev_device_new_from_devnum)(struct udev *udev, char type, dev_t devnum);
dev_t (*udev_device_get_devnum) (struct udev_device *udev_device);
} SDL_UDEV_PrivateData;
extern int SDL_UDEV_Init(void);
extern void SDL_UDEV_Quit(void);
extern void SDL_UDEV_UnloadLibrary(void);
extern int SDL_UDEV_LoadLibrary(void);
extern void SDL_UDEV_Poll(void);
extern void SDL_UDEV_Scan(void);
extern int SDL_UDEV_AddCallback(SDL_UDEV_Callback cb);
extern void SDL_UDEV_DelCallback(SDL_UDEV_Callback cb);
#endif /* HAVE_LIBUDEV_H */
#endif /* _SDL_udev_h */

2
src/events/SDL_mouse.c
View File

@ -246,13 +246,11 @@ SDL_PrivateSendMouseMotion(SDL_Window * window, SDL_MouseID mouseID, int relativ
mouse->xdelta += xrel;
mouse->ydelta += yrel;
#if 0 /* FIXME */
/* Move the mouse cursor, if needed */
if (mouse->cursor_shown && !mouse->relative_mode &&
mouse->MoveCursor && mouse->cur_cursor) {
mouse->MoveCursor(mouse->cur_cursor);
}
#endif
/* Post the event, if desired */
posted = 0;

646
src/input/evdev/SDL_evdev.c Normal file
View File

@ -0,0 +1,646 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#ifdef SDL_INPUT_LINUXEV
/* This is based on the linux joystick driver */
/* References: https://www.kernel.org/doc/Documentation/input/input.txt
* https://www.kernel.org/doc/Documentation/input/event-codes.txt
* /usr/include/linux/input.h
* The evtest application is also useful to debug the protocol
*/
#include "SDL_evdev.h"
#define _THIS SDL_EVDEV_PrivateData *_this
static _THIS = NULL;
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <limits.h> /* For the definition of PATH_MAX */
#include "SDL.h"
#include "SDL_assert.h"
#include "SDL_endian.h"
#include "../../core/linux/SDL_udev.h"
#include "SDL_scancode.h"
#include "../../events/SDL_events_c.h"
/* This isn't defined in older Linux kernel headers */
#ifndef SYN_DROPPED
#define SYN_DROPPED 3
#endif
static int SDL_EVDEV_device_removed(const char *devpath);
static int SDL_EVDEV_device_added(const SDL_UDEV_deviceclass devclass, const char *devpath);
static SDL_Scancode SDL_EVDEV_translate_keycode(int keycode);
static void SDL_EVDEV_sync_device(SDL_evdevlist_item *item);
void SDL_EVDEV_udev_callback(SDL_UDEV_deviceevent udev_type, SDL_UDEV_deviceclass udev_class, const char *devpath);
static SDL_Scancode EVDEV_Keycodes[] = {
SDL_SCANCODE_UNKNOWN, /* KEY_RESERVED 0 */
SDL_SCANCODE_ESCAPE, /* KEY_ESC 1 */
SDL_SCANCODE_1, /* KEY_1 2 */
SDL_SCANCODE_2, /* KEY_2 3 */
SDL_SCANCODE_3, /* KEY_3 4 */
SDL_SCANCODE_4, /* KEY_4 5 */
SDL_SCANCODE_5, /* KEY_5 6 */
SDL_SCANCODE_6, /* KEY_6 7 */
SDL_SCANCODE_7, /* KEY_7 8 */
SDL_SCANCODE_8, /* KEY_8 9 */
SDL_SCANCODE_9, /* KEY_9 10 */
SDL_SCANCODE_0, /* KEY_0 11 */
SDL_SCANCODE_MINUS, /* KEY_MINUS 12 */
SDL_SCANCODE_EQUALS, /* KEY_EQUAL 13 */
SDL_SCANCODE_BACKSPACE, /* KEY_BACKSPACE 14 */
SDL_SCANCODE_TAB, /* KEY_TAB 15 */
SDL_SCANCODE_Q, /* KEY_Q 16 */
SDL_SCANCODE_W, /* KEY_W 17 */
SDL_SCANCODE_E, /* KEY_E 18 */
SDL_SCANCODE_R, /* KEY_R 19 */
SDL_SCANCODE_T, /* KEY_T 20 */
SDL_SCANCODE_Y, /* KEY_Y 21 */
SDL_SCANCODE_U, /* KEY_U 22 */
SDL_SCANCODE_I, /* KEY_I 23 */
SDL_SCANCODE_O, /* KEY_O 24 */
SDL_SCANCODE_P, /* KEY_P 25 */
SDL_SCANCODE_LEFTBRACKET, /* KEY_LEFTBRACE 26 */
SDL_SCANCODE_RIGHTBRACKET, /* KEY_RIGHTBRACE 27 */
SDL_SCANCODE_RETURN, /* KEY_ENTER 28 */
SDL_SCANCODE_LCTRL, /* KEY_LEFTCTRL 29 */
SDL_SCANCODE_A, /* KEY_A 30 */
SDL_SCANCODE_S, /* KEY_S 31 */
SDL_SCANCODE_D, /* KEY_D 32 */
SDL_SCANCODE_F, /* KEY_F 33 */
SDL_SCANCODE_G, /* KEY_G 34 */
SDL_SCANCODE_H, /* KEY_H 35 */
SDL_SCANCODE_J, /* KEY_J 36 */
SDL_SCANCODE_K, /* KEY_K 37 */
SDL_SCANCODE_L, /* KEY_L 38 */
SDL_SCANCODE_SEMICOLON, /* KEY_SEMICOLON 39 */
SDL_SCANCODE_APOSTROPHE, /* KEY_APOSTROPHE 40 */
SDL_SCANCODE_GRAVE, /* KEY_GRAVE 41 */
SDL_SCANCODE_LSHIFT, /* KEY_LEFTSHIFT 42 */
SDL_SCANCODE_BACKSLASH, /* KEY_BACKSLASH 43 */
SDL_SCANCODE_Z, /* KEY_Z 44 */
SDL_SCANCODE_X, /* KEY_X 45 */
SDL_SCANCODE_C, /* KEY_C 46 */
SDL_SCANCODE_V, /* KEY_V 47 */
SDL_SCANCODE_B, /* KEY_B 48 */
SDL_SCANCODE_N, /* KEY_N 49 */
SDL_SCANCODE_M, /* KEY_M 50 */
SDL_SCANCODE_COMMA, /* KEY_COMMA 51 */
SDL_SCANCODE_PERIOD, /* KEY_DOT 52 */
SDL_SCANCODE_SLASH, /* KEY_SLASH 53 */
SDL_SCANCODE_RSHIFT, /* KEY_RIGHTSHIFT 54 */
SDL_SCANCODE_KP_MULTIPLY, /* KEY_KPASTERISK 55 */
SDL_SCANCODE_LALT, /* KEY_LEFTALT 56 */
SDL_SCANCODE_SPACE, /* KEY_SPACE 57 */
SDL_SCANCODE_CAPSLOCK, /* KEY_CAPSLOCK 58 */
SDL_SCANCODE_F1, /* KEY_F1 59 */
SDL_SCANCODE_F2, /* KEY_F2 60 */
SDL_SCANCODE_F3, /* KEY_F3 61 */
SDL_SCANCODE_F4, /* KEY_F4 62 */
SDL_SCANCODE_F5, /* KEY_F5 63 */
SDL_SCANCODE_F6, /* KEY_F6 64 */
SDL_SCANCODE_F7, /* KEY_F7 65 */
SDL_SCANCODE_F8, /* KEY_F8 66 */
SDL_SCANCODE_F9, /* KEY_F9 67 */
SDL_SCANCODE_F10, /* KEY_F10 68 */
SDL_SCANCODE_NUMLOCKCLEAR, /* KEY_NUMLOCK 69 */
SDL_SCANCODE_SCROLLLOCK, /* KEY_SCROLLLOCK 70 */
SDL_SCANCODE_KP_7, /* KEY_KP7 71 */
SDL_SCANCODE_KP_8, /* KEY_KP8 72 */
SDL_SCANCODE_KP_9, /* KEY_KP9 73 */
SDL_SCANCODE_KP_MINUS, /* KEY_KPMINUS 74 */
SDL_SCANCODE_KP_4, /* KEY_KP4 75 */
SDL_SCANCODE_KP_5, /* KEY_KP5 76 */
SDL_SCANCODE_KP_6, /* KEY_KP6 77 */
SDL_SCANCODE_KP_PLUS, /* KEY_KPPLUS 78 */
SDL_SCANCODE_KP_1, /* KEY_KP1 79 */
SDL_SCANCODE_KP_2, /* KEY_KP2 80 */
SDL_SCANCODE_KP_3, /* KEY_KP3 81 */
SDL_SCANCODE_KP_0, /* KEY_KP0 82 */
SDL_SCANCODE_KP_PERIOD, /* KEY_KPDOT 83 */
SDL_SCANCODE_UNKNOWN, /* 84 */
SDL_SCANCODE_LANG5, /* KEY_ZENKAKUHANKAKU 85 */
SDL_SCANCODE_UNKNOWN, /* KEY_102ND 86 */
SDL_SCANCODE_F11, /* KEY_F11 87 */
SDL_SCANCODE_F12, /* KEY_F12 88 */
SDL_SCANCODE_UNKNOWN, /* KEY_RO 89 */
SDL_SCANCODE_LANG3, /* KEY_KATAKANA 90 */
SDL_SCANCODE_LANG4, /* KEY_HIRAGANA 91 */
SDL_SCANCODE_UNKNOWN, /* KEY_HENKAN 92 */
SDL_SCANCODE_LANG3, /* KEY_KATAKANAHIRAGANA 93 */
SDL_SCANCODE_UNKNOWN, /* KEY_MUHENKAN 94 */
SDL_SCANCODE_KP_COMMA, /* KEY_KPJPCOMMA 95 */
SDL_SCANCODE_KP_ENTER, /* KEY_KPENTER 96 */
SDL_SCANCODE_RCTRL, /* KEY_RIGHTCTRL 97 */
SDL_SCANCODE_KP_DIVIDE, /* KEY_KPSLASH 98 */
SDL_SCANCODE_SYSREQ, /* KEY_SYSRQ 99 */
SDL_SCANCODE_RALT, /* KEY_RIGHTALT 100 */
SDL_SCANCODE_UNKNOWN, /* KEY_LINEFEED 101 */
SDL_SCANCODE_HOME, /* KEY_HOME 102 */
SDL_SCANCODE_UP, /* KEY_UP 103 */
SDL_SCANCODE_PAGEUP, /* KEY_PAGEUP 104 */
SDL_SCANCODE_LEFT, /* KEY_LEFT 105 */
SDL_SCANCODE_RIGHT, /* KEY_RIGHT 106 */
SDL_SCANCODE_END, /* KEY_END 107 */
SDL_SCANCODE_DOWN, /* KEY_DOWN 108 */
SDL_SCANCODE_PAGEDOWN, /* KEY_PAGEDOWN 109 */
SDL_SCANCODE_INSERT, /* KEY_INSERT 110 */
SDL_SCANCODE_DELETE, /* KEY_DELETE 111 */
SDL_SCANCODE_UNKNOWN, /* KEY_MACRO 112 */
SDL_SCANCODE_MUTE, /* KEY_MUTE 113 */
SDL_SCANCODE_VOLUMEDOWN, /* KEY_VOLUMEDOWN 114 */
SDL_SCANCODE_VOLUMEUP, /* KEY_VOLUMEUP 115 */
SDL_SCANCODE_POWER, /* KEY_POWER 116 SC System Power Down */
SDL_SCANCODE_KP_EQUALS, /* KEY_KPEQUAL 117 */
SDL_SCANCODE_KP_MINUS, /* KEY_KPPLUSMINUS 118 */
SDL_SCANCODE_PAUSE, /* KEY_PAUSE 119 */
SDL_SCANCODE_UNKNOWN, /* KEY_SCALE 120 AL Compiz Scale (Expose) */
SDL_SCANCODE_KP_COMMA, /* KEY_KPCOMMA 121 */
SDL_SCANCODE_LANG1, /* KEY_HANGEUL,KEY_HANGUEL 122 */
SDL_SCANCODE_LANG2, /* KEY_HANJA 123 */
SDL_SCANCODE_INTERNATIONAL3,/* KEY_YEN 124 */
SDL_SCANCODE_LGUI, /* KEY_LEFTMETA 125 */
SDL_SCANCODE_RGUI, /* KEY_RIGHTMETA 126 */
SDL_SCANCODE_APPLICATION, /* KEY_COMPOSE 127 */
SDL_SCANCODE_STOP, /* KEY_STOP 128 AC Stop */
SDL_SCANCODE_AGAIN, /* KEY_AGAIN 129 */
SDL_SCANCODE_UNKNOWN, /* KEY_PROPS 130 AC Properties */
SDL_SCANCODE_UNDO, /* KEY_UNDO 131 AC Undo */
SDL_SCANCODE_UNKNOWN, /* KEY_FRONT 132 */
SDL_SCANCODE_COPY, /* KEY_COPY 133 AC Copy */
SDL_SCANCODE_UNKNOWN, /* KEY_OPEN 134 AC Open */
SDL_SCANCODE_PASTE, /* KEY_PASTE 135 AC Paste */
SDL_SCANCODE_FIND, /* KEY_FIND 136 AC Search */
SDL_SCANCODE_CUT, /* KEY_CUT 137 AC Cut */
SDL_SCANCODE_HELP, /* KEY_HELP 138 AL Integrated Help Center */
SDL_SCANCODE_MENU, /* KEY_MENU 139 Menu (show menu) */
SDL_SCANCODE_CALCULATOR, /* KEY_CALC 140 AL Calculator */
SDL_SCANCODE_UNKNOWN, /* KEY_SETUP 141 */
SDL_SCANCODE_SLEEP, /* KEY_SLEEP 142 SC System Sleep */
SDL_SCANCODE_UNKNOWN, /* KEY_WAKEUP 143 System Wake Up */
SDL_SCANCODE_UNKNOWN, /* KEY_FILE 144 AL Local Machine Browser */
SDL_SCANCODE_UNKNOWN, /* KEY_SENDFILE 145 */
SDL_SCANCODE_UNKNOWN, /* KEY_DELETEFILE 146 */
SDL_SCANCODE_UNKNOWN, /* KEY_XFER 147 */
SDL_SCANCODE_APP1, /* KEY_PROG1 148 */
SDL_SCANCODE_APP1, /* KEY_PROG2 149 */
SDL_SCANCODE_WWW, /* KEY_WWW 150 AL Internet Browser */
SDL_SCANCODE_UNKNOWN, /* KEY_MSDOS 151 */
SDL_SCANCODE_UNKNOWN, /* KEY_COFFEE,KEY_SCREENLOCK 152 AL Terminal Lock/Screensaver */
SDL_SCANCODE_UNKNOWN, /* KEY_DIRECTION 153 */
SDL_SCANCODE_UNKNOWN, /* KEY_CYCLEWINDOWS 154 */
SDL_SCANCODE_MAIL, /* KEY_MAIL 155 */
SDL_SCANCODE_AC_BOOKMARKS, /* KEY_BOOKMARKS 156 AC Bookmarks */
SDL_SCANCODE_COMPUTER, /* KEY_COMPUTER 157 */
SDL_SCANCODE_AC_BACK, /* KEY_BACK 158 AC Back */
SDL_SCANCODE_AC_FORWARD, /* KEY_FORWARD 159 AC Forward */
SDL_SCANCODE_UNKNOWN, /* KEY_CLOSECD 160 */
SDL_SCANCODE_EJECT, /* KEY_EJECTCD 161 */
SDL_SCANCODE_UNKNOWN, /* KEY_EJECTCLOSECD 162 */
SDL_SCANCODE_AUDIONEXT, /* KEY_NEXTSONG 163 */
SDL_SCANCODE_AUDIOPLAY, /* KEY_PLAYPAUSE 164 */
SDL_SCANCODE_AUDIOPREV, /* KEY_PREVIOUSSONG 165 */
SDL_SCANCODE_AUDIOSTOP, /* KEY_STOPCD 166 */
SDL_SCANCODE_UNKNOWN, /* KEY_RECORD 167 */
SDL_SCANCODE_UNKNOWN, /* KEY_REWIND 168 */
SDL_SCANCODE_UNKNOWN, /* KEY_PHONE 169 Media Select Telephone */
SDL_SCANCODE_UNKNOWN, /* KEY_ISO 170 */
SDL_SCANCODE_UNKNOWN, /* KEY_CONFIG 171 AL Consumer Control Configuration */
SDL_SCANCODE_AC_HOME, /* KEY_HOMEPAGE 172 AC Home */
SDL_SCANCODE_AC_REFRESH, /* KEY_REFRESH 173 AC Refresh */
SDL_SCANCODE_UNKNOWN, /* KEY_EXIT 174 AC Exit */
SDL_SCANCODE_UNKNOWN, /* KEY_MOVE 175 */
SDL_SCANCODE_UNKNOWN, /* KEY_EDIT 176 */
SDL_SCANCODE_UNKNOWN, /* KEY_SCROLLUP 177 */
SDL_SCANCODE_UNKNOWN, /* KEY_SCROLLDOWN 178 */
SDL_SCANCODE_KP_LEFTPAREN, /* KEY_KPLEFTPAREN 179 */
SDL_SCANCODE_KP_RIGHTPAREN, /* KEY_KPRIGHTPAREN 180 */
SDL_SCANCODE_UNKNOWN, /* KEY_NEW 181 AC New */
SDL_SCANCODE_AGAIN, /* KEY_REDO 182 AC Redo/Repeat */
SDL_SCANCODE_F13, /* KEY_F13 183 */
SDL_SCANCODE_F14, /* KEY_F14 184 */
SDL_SCANCODE_F15, /* KEY_F15 185 */
SDL_SCANCODE_F16, /* KEY_F16 186 */
SDL_SCANCODE_F17, /* KEY_F17 187 */
SDL_SCANCODE_F18, /* KEY_F18 188 */
SDL_SCANCODE_F19, /* KEY_F19 189 */
SDL_SCANCODE_F20, /* KEY_F20 190 */
SDL_SCANCODE_F21, /* KEY_F21 191 */
SDL_SCANCODE_F22, /* KEY_F22 192 */
SDL_SCANCODE_F23, /* KEY_F23 193 */
SDL_SCANCODE_F24, /* KEY_F24 194 */
SDL_SCANCODE_UNKNOWN, /* 195 */
SDL_SCANCODE_UNKNOWN, /* 196 */
SDL_SCANCODE_UNKNOWN, /* 197 */
SDL_SCANCODE_UNKNOWN, /* 198 */
SDL_SCANCODE_UNKNOWN, /* 199 */
SDL_SCANCODE_UNKNOWN, /* KEY_PLAYCD 200 */
SDL_SCANCODE_UNKNOWN, /* KEY_PAUSECD 201 */
SDL_SCANCODE_UNKNOWN, /* KEY_PROG3 202 */
SDL_SCANCODE_UNKNOWN, /* KEY_PROG4 203 */
SDL_SCANCODE_UNKNOWN, /* KEY_DASHBOARD 204 AL Dashboard */
SDL_SCANCODE_UNKNOWN, /* KEY_SUSPEND 205 */
SDL_SCANCODE_UNKNOWN, /* KEY_CLOSE 206 AC Close */
SDL_SCANCODE_UNKNOWN, /* KEY_PLAY 207 */
SDL_SCANCODE_UNKNOWN, /* KEY_FASTFORWARD 208 */
SDL_SCANCODE_UNKNOWN, /* KEY_BASSBOOST 209 */
SDL_SCANCODE_UNKNOWN, /* KEY_PRINT 210 AC Print */
SDL_SCANCODE_UNKNOWN, /* KEY_HP 211 */
SDL_SCANCODE_UNKNOWN, /* KEY_CAMERA 212 */
SDL_SCANCODE_UNKNOWN, /* KEY_SOUND 213 */
SDL_SCANCODE_UNKNOWN, /* KEY_QUESTION 214 */
SDL_SCANCODE_UNKNOWN, /* KEY_EMAIL 215 */
SDL_SCANCODE_UNKNOWN, /* KEY_CHAT 216 */
SDL_SCANCODE_UNKNOWN, /* KEY_SEARCH 217 */
SDL_SCANCODE_UNKNOWN, /* KEY_CONNECT 218 */
SDL_SCANCODE_UNKNOWN, /* KEY_FINANCE 219 AL Checkbook/Finance */
SDL_SCANCODE_UNKNOWN, /* KEY_SPORT 220 */
SDL_SCANCODE_UNKNOWN, /* KEY_SHOP 221 */
SDL_SCANCODE_UNKNOWN, /* KEY_ALTERASE 222 */
SDL_SCANCODE_UNKNOWN, /* KEY_CANCEL 223 AC Cancel */
SDL_SCANCODE_UNKNOWN, /* KEY_BRIGHTNESSDOWN 224 */
SDL_SCANCODE_UNKNOWN, /* KEY_BRIGHTNESSUP 225 */
SDL_SCANCODE_UNKNOWN, /* KEY_MEDIA 226 */
SDL_SCANCODE_UNKNOWN, /* KEY_SWITCHVIDEOMODE 227 Cycle between available video outputs (Monitor/LCD/TV-out/etc) */
SDL_SCANCODE_UNKNOWN, /* KEY_KBDILLUMTOGGLE 228 */
SDL_SCANCODE_UNKNOWN, /* KEY_KBDILLUMDOWN 229 */
SDL_SCANCODE_UNKNOWN, /* KEY_KBDILLUMUP 230 */
SDL_SCANCODE_UNKNOWN, /* KEY_SEND 231 AC Send */
SDL_SCANCODE_UNKNOWN, /* KEY_REPLY 232 AC Reply */
SDL_SCANCODE_UNKNOWN, /* KEY_FORWARDMAIL 233 AC Forward Msg */
SDL_SCANCODE_UNKNOWN, /* KEY_SAVE 234 AC Save */
SDL_SCANCODE_UNKNOWN, /* KEY_DOCUMENTS 235 */
SDL_SCANCODE_UNKNOWN, /* KEY_BATTERY 236 */
SDL_SCANCODE_UNKNOWN, /* KEY_BLUETOOTH 237 */
SDL_SCANCODE_UNKNOWN, /* KEY_WLAN 238 */
SDL_SCANCODE_UNKNOWN, /* KEY_UWB 239 */
SDL_SCANCODE_UNKNOWN, /* KEY_UNKNOWN 240 */
SDL_SCANCODE_UNKNOWN, /* KEY_VIDEO_NEXT 241 drive next video source */
SDL_SCANCODE_UNKNOWN, /* KEY_VIDEO_PREV 242 drive previous video source */
SDL_SCANCODE_UNKNOWN, /* KEY_BRIGHTNESS_CYCLE 243 brightness up, after max is min */
SDL_SCANCODE_UNKNOWN, /* KEY_BRIGHTNESS_ZERO 244 brightness off, use ambient */
SDL_SCANCODE_UNKNOWN, /* KEY_DISPLAY_OFF 245 display device to off state */
SDL_SCANCODE_UNKNOWN, /* KEY_WIMAX 246 */
SDL_SCANCODE_UNKNOWN, /* KEY_RFKILL 247 Key that controls all radios */
SDL_SCANCODE_UNKNOWN, /* KEY_MICMUTE 248 Mute / unmute the microphone */
};
static Uint8 EVDEV_MouseButtons[] = {
SDL_BUTTON_LEFT, /* BTN_LEFT 0x110 */
SDL_BUTTON_RIGHT, /* BTN_RIGHT 0x111 */
SDL_BUTTON_MIDDLE, /* BTN_MIDDLE 0x112 */
SDL_BUTTON_X1, /* BTN_SIDE 0x113 */
SDL_BUTTON_X2, /* BTN_EXTRA 0x114 */
SDL_BUTTON_X2 + 1, /* BTN_FORWARD 0x115 */
SDL_BUTTON_X2 + 2, /* BTN_BACK 0x116 */
SDL_BUTTON_X2 + 3 /* BTN_TASK 0x117 */
};
int
SDL_EVDEV_Init(void)
{
int retval = 0;
if (_this == NULL) {
_this = (SDL_EVDEV_PrivateData *) SDL_calloc(1, sizeof(*_this));
if(_this == NULL) {
return SDL_OutOfMemory();
}
#if SDL_USE_LIBUDEV
if (SDL_UDEV_Init() < 0) {
SDL_free(_this);
_this = NULL;
return -1;
}
/* Set up the udev callback */
if ( SDL_UDEV_AddCallback(SDL_EVDEV_udev_callback) < 0) {
SDL_EVDEV_Quit();
return -1;
}
/* Force a scan to build the initial device list */
SDL_UDEV_Scan();
#else
/* TODO: Scan the devices manually, like a caveman */
#endif /* SDL_USE_LIBUDEV */
}
_this->ref_count += 1;
return retval;
}
void
SDL_EVDEV_Quit(void)
{
if (_this == NULL) {
return;
}
_this->ref_count -= 1;
if (_this->ref_count < 1) {
#if SDL_USE_LIBUDEV
SDL_UDEV_DelCallback(SDL_EVDEV_udev_callback);
SDL_UDEV_Quit();
#endif /* SDL_USE_LIBUDEV */
/* Remove existing devices */
while(_this->first != NULL) {
SDL_EVDEV_device_removed(_this->first->path);
}
SDL_assert(_this->first == NULL);
SDL_assert(_this->last == NULL);
SDL_assert(_this->numdevices == 0);
SDL_free(_this);
_this = NULL;
}
}
void SDL_EVDEV_udev_callback(SDL_UDEV_deviceevent udev_type, SDL_UDEV_deviceclass udev_class, const char *devpath)
{
SDL_EVDEV_deviceclass devclass;
if (devpath == NULL) {
return;
}
switch( udev_class )
{
case SDL_UDEV_DEVICE_MOUSE:
devclass = SDL_EVDEV_DEVICE_MOUSE;
break;
case SDL_UDEV_DEVICE_KEYBOARD:
devclass = SDL_EVDEV_DEVICE_KEYBOARD;
break;
default:
return;
}
switch( udev_type )
{
case SDL_UDEV_DEVICEADDED:
SDL_EVDEV_device_added(devclass, devpath);
break;
case SDL_UDEV_DEVICEREMOVED:
SDL_EVDEV_device_removed(devpath);
break;
default:
break;
}
}
void
SDL_EVDEV_Poll(void)
{
struct input_event events[32];
int i, len;
SDL_evdevlist_item *item;
SDL_Scancode scan_code;
int mouse_button;
SDL_Mouse *mouse;
#if SDL_USE_LIBUDEV
SDL_UDEV_Poll();
#endif
for (item = _this->first; item != NULL; item = item->next) {
while ((len = read(item->fd, events, (sizeof events))) > 0) {
len /= sizeof(events[0]);
for (i = 0; i < len; ++i) {
switch(item->devclass) {
case SDL_EVDEV_DEVICE_KEYBOARD:
switch (events[i].type) {
case EV_KEY:
scan_code = SDL_EVDEV_translate_keycode(events[i].code);
if (scan_code != SDL_SCANCODE_UNKNOWN) {
if (events[i].value == 0) {
SDL_SendKeyboardKey(SDL_RELEASED, scan_code);
}
else if (events[i].value == 1) {
SDL_SendKeyboardKey(SDL_PRESSED, scan_code);
}
else if (events[i].value == 2) {
/* Key repeated */
SDL_SendKeyboardKey(SDL_PRESSED, scan_code);
}
}
break;
default:
break;
}
break; /* SDL_EVDEV_DEVICE_KEYBOARD */
case SDL_EVDEV_DEVICE_MOUSE:
mouse = SDL_GetMouse();
switch (events[i].type) {
case EV_KEY:
mouse_button = events[i].code - BTN_MOUSE;
if (mouse_button >= 0 && mouse_button < SDL_arraysize(EVDEV_MouseButtons)) {
if (events[i].value == 0) {
SDL_SendMouseButton(mouse->focus, mouse->mouseID, SDL_RELEASED, EVDEV_MouseButtons[mouse_button]);
}
else if (events[i].value == 1) {
SDL_SendMouseButton(mouse->focus, mouse->mouseID, SDL_PRESSED, EVDEV_MouseButtons[mouse_button]);
}
}
break;
case EV_ABS:
switch(events[i].code) {
case ABS_X:
SDL_SendMouseMotion(mouse->focus, mouse->mouseID, SDL_FALSE, events[i].value, mouse->y);
break;
case ABS_Y:
SDL_SendMouseMotion(mouse->focus, mouse->mouseID, SDL_FALSE, mouse->x, events[i].value);
break;
default:
break;
}
break;
case EV_REL:
switch(events[i].code) {
case REL_X:
SDL_SendMouseMotion(mouse->focus, mouse->mouseID, SDL_TRUE, events[i].value, 0);
break;
case REL_Y:
SDL_SendMouseMotion(mouse->focus, mouse->mouseID, SDL_TRUE, 0, events[i].value);
break;
case REL_WHEEL:
SDL_SendMouseWheel(mouse->focus, mouse->mouseID, 0, events[i].value);
break;
case REL_HWHEEL:
SDL_SendMouseWheel(mouse->focus, mouse->mouseID, events[i].value, 0);
break;
default:
break;
}
break;
default:
break;
}
break; /* SDL_EVDEV_DEVICE_MOUSE */
default:
break;
}
/* Handle events not specific to any type of device */
switch (events[i].type) {
case EV_SYN:
switch (events[i].code) {
case SYN_DROPPED :
SDL_EVDEV_sync_device(item);
break;
default:
break;
}
}
}
}
}
}
static SDL_Scancode
SDL_EVDEV_translate_keycode(int keycode)
{
SDL_Scancode scancode = SDL_SCANCODE_UNKNOWN;
if (keycode < SDL_arraysize(EVDEV_Keycodes)) {
scancode = EVDEV_Keycodes[keycode];
}
if (scancode == SDL_SCANCODE_UNKNOWN) {
SDL_Log("The key you just pressed is not recognized by SDL. To help get this fixed, please report this to the SDL mailing list <sdl@libsdl.org> EVDEV KeyCode %d \n", keycode);
}
return scancode;
}
static void
SDL_EVDEV_sync_device(SDL_evdevlist_item *item)
{
/* TODO: get full state of device and report whatever is required */
}
static int
SDL_EVDEV_device_added(const SDL_UDEV_deviceclass devclass, const char *devpath)
{
SDL_evdevlist_item *item;
/* Check to make sure it's not already in list. */
for (item = _this->first; item != NULL; item = item->next) {
if (strcmp(devpath, item->path) == 0) {
return -1; /* already have this one */
}
}
item = (SDL_evdevlist_item *) SDL_calloc(1, sizeof (SDL_evdevlist_item));
if (item == NULL) {
return SDL_OutOfMemory();
}
item->devclass = devclass;
item->fd = open(devpath, O_RDONLY, 0);
if (item->fd < 0) {
SDL_free(item);
return SDL_SetError("Unable to open %s", devpath);
}
item->path = SDL_strdup(devpath);
if (item->path == NULL) {
close(item->fd);
SDL_free(item);
return SDL_OutOfMemory();
}
/* Non blocking read mode */
fcntl(item->fd, F_SETFL, O_NONBLOCK);
if (_this->last == NULL) {
_this->first = _this->last = item;
} else {
_this->last->next = item;
_this->last = item;
}
SDL_EVDEV_sync_device(item);
return _this->numdevices++;
}
static int
SDL_EVDEV_device_removed(const char *devpath)
{
SDL_evdevlist_item *item;
SDL_evdevlist_item *prev = NULL;
for (item = _this->first; item != NULL; item = item->next) {
/* found it, remove it. */
if ( strcmp(devpath, item->path) ==0 ) {
if (prev != NULL) {
prev->next = item->next;
} else {
SDL_assert(_this->first == item);
_this->first = item->next;
}
if (item == _this->last) {
_this->last = prev;
}
close(item->fd);
SDL_free(item->path);
SDL_free(item);
_this->numdevices--;
return 0;
}
prev = item;
}
return -1;
}
#endif /* SDL_INPUT_LINUXEV */
/* vi: set ts=4 sw=4 expandtab: */

65
src/input/evdev/SDL_evdev.h Normal file
View File

@ -0,0 +1,65 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include <linux/input.h>
#include "SDL_config.h"
#ifndef _SDL_evdev_h
#define _SDL_evdev_h
#ifdef SDL_INPUT_LINUXEV
#include "SDL_events.h"
#include <sys/stat.h>
typedef enum
{
SDL_EVDEV_DEVICE_MOUSE = 0x0001,
SDL_EVDEV_DEVICE_KEYBOARD
} SDL_EVDEV_deviceclass;
typedef struct SDL_evdevlist_item
{
char *path;
int fd;
SDL_EVDEV_deviceclass devclass;
struct SDL_evdevlist_item *next;
} SDL_evdevlist_item;
typedef struct SDL_EVDEV_PrivateData
{
SDL_evdevlist_item *first;
SDL_evdevlist_item *last;
int numdevices;
int ref_count;
} SDL_EVDEV_PrivateData;
extern int SDL_EVDEV_Init(void);
extern void SDL_EVDEV_Quit(void);
extern void SDL_EVDEV_Poll(void);
#endif /* SDL_INPUT_LINUXEV */
#endif /* _SDL_evdev_h */
/* vi: set ts=4 sw=4 expandtab: */

92
src/video/SDL_egl.c
View File

@ -25,13 +25,20 @@
#include "SDL_sysvideo.h"
#include "SDL_egl.h"
#define DEFAULT_EGL "libEGL.so"
#define DEFAULT_OGL_ES2 "libGLESv2.so"
#define DEFAULT_OGL_ES_PVR "libGLES_CM.so"
#define DEFAULT_OGL_ES "libGLESv1_CM.so"
#if SDL_VIDEO_DRIVER_RPI
#define DEFAULT_EGL "/opt/vc/lib/libEGL.so"
#define DEFAULT_OGL_ES2 "/opt/vc/lib/libGLESv2.so"
#define DEFAULT_OGL_ES_PVR "/opt/vc/lib/libGLES_CM.so"
#define DEFAULT_OGL_ES "/opt/vc/lib/libGLESv1_CM.so"
#else
#define DEFAULT_EGL "libEGL.so.1"
#define DEFAULT_OGL_ES2 "libGLESv2.so.2"
#define DEFAULT_OGL_ES_PVR "libGLES_CM.so.1"
#define DEFAULT_OGL_ES "libGLESv1_CM.so.1"
#endif /* SDL_VIDEO_DRIVER_RPI */
#define LOAD_FUNC(NAME) \
*((void**)&_this->egl_data->NAME) = dlsym(handle, #NAME); \
*((void**)&_this->egl_data->NAME) = dlsym(dll_handle, #NAME); \
if (!_this->egl_data->NAME) \
{ \
return SDL_SetError("Could not retrieve EGL function " #NAME); \
@ -88,9 +95,10 @@ SDL_EGL_UnloadLibrary(_THIS)
}
int
SDL_EGL_LoadLibrary(_THIS, const char *path, NativeDisplayType native_display)
SDL_EGL_LoadLibrary(_THIS, const char *egl_path, NativeDisplayType native_display)
{
void *handle;
void *dll_handle, *egl_dll_handle; /* The naming is counter intuitive, but hey, I just work here -- Gabriel */
char *path;
int dlopen_flags;
if (_this->egl_data) {
@ -105,22 +113,44 @@ SDL_EGL_LoadLibrary(_THIS, const char *path, NativeDisplayType native_display)
#else
dlopen_flags = RTLD_LAZY;
#endif
handle = dlopen(path, dlopen_flags);
/* A funny thing, loading EGL.so first does not work on the Raspberry, so we load libGL* first */
path = getenv("SDL_VIDEO_GL_DRIVER");
egl_dll_handle = dlopen(path, dlopen_flags);
if ((path == NULL) | (egl_dll_handle == NULL)) {
if (_this->gl_config.major_version > 1) {
path = DEFAULT_OGL_ES2;
egl_dll_handle = dlopen(path, dlopen_flags);
} else {
path = DEFAULT_OGL_ES;
egl_dll_handle = dlopen(path, dlopen_flags);
if (egl_dll_handle == NULL) {
path = DEFAULT_OGL_ES_PVR;
egl_dll_handle = dlopen(path, dlopen_flags);
}
}
}
if (egl_dll_handle == NULL) {
return SDL_SetError("Could not initialize OpenGL ES library: %s", dlerror());
}
/* Loading libGL* in the previous step took care of loading libEGL.so, but we future proof by double checking */
dll_handle = dlopen(egl_path, dlopen_flags);
/* Catch the case where the application isn't linked with EGL */
if ((dlsym(handle, "eglChooseConfig") == NULL) && (path == NULL)) {
dlclose(handle);
if ((dlsym(dll_handle, "eglChooseConfig") == NULL) && (egl_path == NULL)) {
dlclose(dll_handle);
path = getenv("SDL_VIDEO_EGL_DRIVER");
if (path == NULL) {
path = DEFAULT_EGL;
}
handle = dlopen(path, dlopen_flags);
}
if (handle == NULL) {
return SDL_SetError("Could not load OpenGL ES/EGL library");
dll_handle = dlopen(path, dlopen_flags);
}
if (dll_handle == NULL) {
return SDL_SetError("Could not load EGL library: %s", dlerror());
}
_this->egl_data = (struct SDL_EGL_VideoData *) SDL_calloc(1, sizeof(SDL_EGL_VideoData));
if (!_this->egl_data) {
return SDL_OutOfMemory();
@ -153,36 +183,14 @@ SDL_EGL_LoadLibrary(_THIS, const char *path, NativeDisplayType native_display)
return SDL_SetError("Could not initialize EGL");
}
_this->egl_data->egl_dll_handle = handle;
path = getenv("SDL_VIDEO_GL_DRIVER");
handle = dlopen(path, dlopen_flags);
if ((path == NULL) | (handle == NULL)) {
if (_this->gl_config.major_version > 1) {
path = DEFAULT_OGL_ES2;
handle = dlopen(path, dlopen_flags);
} else {
path = DEFAULT_OGL_ES;
handle = dlopen(path, dlopen_flags);
if (handle == NULL) {
path = DEFAULT_OGL_ES_PVR;
handle = dlopen(path, dlopen_flags);
}
}
}
if (handle == NULL) {
return SDL_SetError("Could not initialize OpenGL ES library");
}
_this->gl_config.dll_handle = handle;
_this->gl_config.dll_handle = dll_handle;
_this->egl_data->egl_dll_handle = egl_dll_handle;
_this->gl_config.driver_loaded = 1;
if (path) {
strncpy(_this->gl_config.driver_path, path,
sizeof(_this->gl_config.driver_path) - 1);
strncpy(_this->gl_config.driver_path, path, sizeof(_this->gl_config.driver_path) - 1);
} else {
strcpy(_this->gl_config.driver_path, "");
strcpy(_this->gl_config.driver_path, "");
}
/* We need to select a config here to satisfy some video backends such as X11 */

3
src/video/SDL_sysvideo.h
View File

@ -363,6 +363,9 @@ extern VideoBootStrap Android_bootstrap;
#if SDL_VIDEO_DRIVER_PSP
extern VideoBootStrap PSP_bootstrap;
#endif
#if SDL_VIDEO_DRIVER_RPI
extern VideoBootStrap RPI_bootstrap;
#endif
#if SDL_VIDEO_DRIVER_DUMMY
extern VideoBootStrap DUMMY_bootstrap;
#endif

3
src/video/SDL_video.c
View File

@ -80,6 +80,9 @@ static VideoBootStrap *bootstrap[] = {
#if SDL_VIDEO_DRIVER_PSP
&PSP_bootstrap,
#endif
#if SDL_VIDEO_DRIVER_RPI
&RPI_bootstrap,
#endif
#if SDL_VIDEO_DRIVER_DUMMY
&DUMMY_bootstrap,
#endif

45
src/video/raspberry/SDL_rpievents.c Normal file
View File

@ -0,0 +1,45 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if SDL_VIDEO_DRIVER_RPI
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
#include "../../events/SDL_keyboard_c.h"
#include "SDL_rpivideo.h"
#include "SDL_rpievents_c.h"
#ifdef SDL_INPUT_LINUXEV
#include "../../input/evdev/SDL_evdev.h"
#endif
void RPI_PumpEvents(_THIS)
{
#ifdef SDL_INPUT_LINUXEV
SDL_EVDEV_Poll();
#endif
}
#endif /* SDL_VIDEO_DRIVER_RPI */

31
src/video/raspberry/SDL_rpievents_c.h Normal file
View File

@ -0,0 +1,31 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef _SDL_rpievents_c_h
#define _SDL_rpievents_c_h
#include "SDL_rpivideo.h"
void RPI_PumpEvents(_THIS);
void RPI_EventInit(_THIS);
void RPI_EventQuit(_THIS);
#endif /* _SDL_rpievents_c_h */

277
src/video/raspberry/SDL_rpimouse.c Normal file
View File

@ -0,0 +1,277 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if SDL_VIDEO_DRIVER_RPI
#include "SDL_assert.h"
#include "SDL_surface.h"
#include "SDL_rpivideo.h"
#include "SDL_rpimouse.h"
#include "../SDL_sysvideo.h"
#include "../../events/SDL_mouse_c.h"
#include "../../events/default_cursor.h"
/* Copied from vc_vchi_dispmanx.h which is bugged and tries to include a non existing file */
/* Attributes changes flag mask */
#define ELEMENT_CHANGE_LAYER (1<<0)
#define ELEMENT_CHANGE_OPACITY (1<<1)
#define ELEMENT_CHANGE_DEST_RECT (1<<2)
#define ELEMENT_CHANGE_SRC_RECT (1<<3)
#define ELEMENT_CHANGE_MASK_RESOURCE (1<<4)
#define ELEMENT_CHANGE_TRANSFORM (1<<5)
/* End copied from vc_vchi_dispmanx.h */
static SDL_Cursor *RPI_CreateDefaultCursor(void);
static SDL_Cursor *RPI_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y);
static int RPI_ShowCursor(SDL_Cursor * cursor);
static void RPI_MoveCursor(SDL_Cursor * cursor);
static void RPI_FreeCursor(SDL_Cursor * cursor);
static void RPI_WarpMouse(SDL_Window * window, int x, int y);
static SDL_Cursor *
RPI_CreateDefaultCursor(void)
{
return SDL_CreateCursor(default_cdata, default_cmask, DEFAULT_CWIDTH, DEFAULT_CHEIGHT, DEFAULT_CHOTX, DEFAULT_CHOTY);
}
/* Create a cursor from a surface */
static SDL_Cursor *
RPI_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
{
RPI_CursorData *curdata;
SDL_Cursor *cursor;
int ret;
VC_RECT_T dst_rect;
Uint32 dummy;
SDL_assert(surface->format->format == SDL_PIXELFORMAT_ARGB8888);
SDL_assert(surface->pitch == surface->w * 4);
cursor = (SDL_Cursor *) SDL_calloc(1, sizeof(*cursor));
curdata = (RPI_CursorData *) SDL_calloc(1, sizeof(*curdata));
curdata->hot_x = hot_x;
curdata->hot_y = hot_y;
curdata->w = surface->w;
curdata->h = surface->h;
/* This usage is inspired by Wayland/Weston RPI code, how they figured this out is anyone's guess */
curdata->resource = vc_dispmanx_resource_create( VC_IMAGE_ARGB8888, surface->w | (surface->pitch << 16), surface->h | (surface->h << 16), &dummy );
SDL_assert(curdata->resource);
vc_dispmanx_rect_set( &dst_rect, 0, 0, curdata->w, curdata->h);
/* A note from Weston:
* vc_dispmanx_resource_write_data() ignores ifmt,
* rect.x, rect.width, and uses stride only for computing
* the size of the transfer as rect.height * stride.
* Therefore we can only write rows starting at x=0.
*/
ret = vc_dispmanx_resource_write_data( curdata->resource, VC_IMAGE_ARGB8888, surface->pitch, surface->pixels, &dst_rect );
SDL_assert ( ret == DISPMANX_SUCCESS );
cursor->driverdata = curdata;
return cursor;
}
/* Show the specified cursor, or hide if cursor is NULL */
static int
RPI_ShowCursor(SDL_Cursor * cursor)
{
int ret;
DISPMANX_UPDATE_HANDLE_T update;
RPI_CursorData *curdata;
VC_RECT_T src_rect, dst_rect;
SDL_Mouse *mouse;
SDL_VideoDisplay *display;
SDL_DisplayData *data;
VC_DISPMANX_ALPHA_T alpha = { DISPMANX_FLAGS_ALPHA_FROM_SOURCE /* flags */ , 255 /*opacity 0->255*/, 0 /* mask */ };
mouse = SDL_GetMouse();
if (mouse == NULL) {
return -1;
}
if (cursor == NULL) {
/* FIXME: We hide the current mouse's cursor, what we actually need is *_HideCursor */
if ( mouse->cur_cursor != NULL && mouse->cur_cursor->driverdata != NULL) {
curdata = (RPI_CursorData *) mouse->cur_cursor->driverdata;
if (curdata->element > DISPMANX_NO_HANDLE) {
update = vc_dispmanx_update_start( 10 );
SDL_assert( update );
ret = vc_dispmanx_element_remove( update, curdata->element );
SDL_assert( ret == DISPMANX_SUCCESS );
ret = vc_dispmanx_update_submit_sync( update );
SDL_assert( ret == DISPMANX_SUCCESS );
curdata->element = DISPMANX_NO_HANDLE;
}
}
return 0;
}
curdata = (RPI_CursorData *) cursor->driverdata;
if (curdata == NULL) {
return -1;
}
if (mouse->focus == NULL) {
return -1;
}
display = SDL_GetDisplayForWindow(mouse->focus);
if (display == NULL) {
return -1;
}
data = (SDL_DisplayData*) display->driverdata;
if (data == NULL) {
return -1;
}
if (curdata->element == DISPMANX_NO_HANDLE) {
vc_dispmanx_rect_set( &src_rect, 0, 0, curdata->w << 16, curdata->h << 16 );
vc_dispmanx_rect_set( &dst_rect, 0, 0, curdata->w, curdata->h);
update = vc_dispmanx_update_start( 10 );
SDL_assert( update );
curdata->element = vc_dispmanx_element_add( update,
data->dispman_display,
SDL_RPI_MOUSELAYER, // layer
&dst_rect,
curdata->resource,
&src_rect,
DISPMANX_PROTECTION_NONE,
&alpha,
DISPMANX_NO_HANDLE, // clamp
VC_IMAGE_ROT0 );
SDL_assert( curdata->element > DISPMANX_NO_HANDLE);
ret = vc_dispmanx_update_submit_sync( update );
SDL_assert( ret == DISPMANX_SUCCESS );
}
return 0;
}
/* Free a window manager cursor */
static void
RPI_FreeCursor(SDL_Cursor * cursor)
{
int ret;
DISPMANX_UPDATE_HANDLE_T update;
RPI_CursorData *curdata;
if (cursor != NULL) {
curdata = (RPI_CursorData *) cursor->driverdata;
if (curdata != NULL) {
if (curdata->element != DISPMANX_NO_HANDLE) {
update = vc_dispmanx_update_start( 10 );
SDL_assert( update );
ret = vc_dispmanx_element_remove( update, curdata->element );
SDL_assert( ret == DISPMANX_SUCCESS );
ret = vc_dispmanx_update_submit_sync( update );
SDL_assert( ret == DISPMANX_SUCCESS );
}
if (curdata->resource != DISPMANX_NO_HANDLE) {
ret = vc_dispmanx_resource_delete( curdata->resource );
SDL_assert( ret == DISPMANX_SUCCESS );
}
SDL_free(cursor->driverdata);
}
SDL_free(cursor);
}
}
/* Warp the mouse to (x,y) */
static void
RPI_WarpMouse(SDL_Window * window, int x, int y)
{
RPI_CursorData *curdata;
DISPMANX_UPDATE_HANDLE_T update;
int ret;
VC_RECT_T dst_rect;
SDL_Mouse *mouse = SDL_GetMouse();
if (mouse != NULL && mouse->cur_cursor != NULL && mouse->cur_cursor->driverdata != NULL) {
curdata = (RPI_CursorData *) mouse->cur_cursor->driverdata;
if (curdata->element != DISPMANX_NO_HANDLE) {
update = vc_dispmanx_update_start( 10 );
SDL_assert( update );
vc_dispmanx_rect_set( &dst_rect, x, y, curdata->w, curdata->h);
ret = vc_dispmanx_element_change_attributes(
update,
curdata->element,
ELEMENT_CHANGE_DEST_RECT,
0,
0,
&dst_rect,
NULL,
DISPMANX_NO_HANDLE,
DISPMANX_NO_ROTATE);
SDL_assert( ret == DISPMANX_SUCCESS );
/* Submit asynchronously, otherwise the peformance suffers a lot */
ret = vc_dispmanx_update_submit( update, 0, NULL );
SDL_assert( ret == DISPMANX_SUCCESS );
}
}
}
void
RPI_InitMouse(_THIS)
{
/* FIXME: Using UDEV it should be possible to scan all mice
* but there's no point in doing so as there's no multimice support...yet!
*/
SDL_Mouse *mouse = SDL_GetMouse();
mouse->CreateCursor = RPI_CreateCursor;
mouse->ShowCursor = RPI_ShowCursor;
mouse->MoveCursor = RPI_MoveCursor;
mouse->FreeCursor = RPI_FreeCursor;
mouse->WarpMouse = RPI_WarpMouse;
SDL_SetDefaultCursor(RPI_CreateDefaultCursor());
}
void
RPI_QuitMouse(_THIS)
{
}
/* This is called when a mouse motion event occurs */
static void
RPI_MoveCursor(SDL_Cursor * cursor)
{
SDL_Mouse *mouse = SDL_GetMouse();
RPI_WarpMouse(mouse->focus, mouse->x, mouse->y);
}
#endif /* SDL_VIDEO_DRIVER_RPI */
/* vi: set ts=4 sw=4 expandtab: */

43
src/video/raspberry/SDL_rpimouse.h Normal file
View File

@ -0,0 +1,43 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef _SDL_RPI_mouse_h
#define _SDL_RPI_mouse_h
#include "../SDL_sysvideo.h"
typedef struct _RPI_CursorData RPI_CursorData;
struct _RPI_CursorData
{
DISPMANX_RESOURCE_HANDLE_T resource;
DISPMANX_ELEMENT_HANDLE_T element;
int hot_x, hot_y;
int w, h;
};
#define SDL_RPI_CURSORDATA(curs) RPI_CursorData *curdata = (RPI_CursorData *) ((curs) ? (curs)->driverdata : NULL)
extern void RPI_InitMouse(_THIS);
extern void RPI_QuitMouse(_THIS);
#endif /* _SDL_RPI_mouse_h */
/* vi: set ts=4 sw=4 expandtab: */

42
src/video/raspberry/SDL_rpiopengles.c Normal file
View File

@ -0,0 +1,42 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL
#include "SDL_rpivideo.h"
#include "SDL_rpiopengles.h"
/* EGL implementation of SDL OpenGL support */
int
RPI_GLES_LoadLibrary(_THIS, const char *path) {
return SDL_EGL_LoadLibrary(_this, path, EGL_DEFAULT_DISPLAY);
}
SDL_EGL_CreateContext_impl(RPI)
SDL_EGL_SwapWindow_impl(RPI)
SDL_EGL_MakeCurrent_impl(RPI)
#endif /* SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL */
/* vi: set ts=4 sw=4 expandtab: */

48
src/video/raspberry/SDL_rpiopengles.h Normal file
View File

@ -0,0 +1,48 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#ifndef _SDL_rpiopengles_h
#define _SDL_rpiopengles_h
#if SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL
#include "../SDL_sysvideo.h"
#include "../SDL_egl.h"
/* OpenGLES functions */
#define RPI_GLES_GetAttribute SDL_EGL_GetAttribute
#define RPI_GLES_GetProcAddress SDL_EGL_GetProcAddress
#define RPI_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
#define RPI_GLES_SetSwapInterval SDL_EGL_SetSwapInterval
#define RPI_GLES_GetSwapInterval SDL_EGL_GetSwapInterval
#define RPI_GLES_DeleteContext SDL_EGL_DeleteContext
extern int RPI_GLES_LoadLibrary(_THIS, const char *path);
extern SDL_GLContext RPI_GLES_CreateContext(_THIS, SDL_Window * window);
extern void RPI_GLES_SwapWindow(_THIS, SDL_Window * window);
extern int RPI_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
#endif /* SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL */
#endif /* _SDL_rpiopengles_h */
/* vi: set ts=4 sw=4 expandtab: */

361
src/video/raspberry/SDL_rpivideo.c Normal file
View File

@ -0,0 +1,361 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if SDL_VIDEO_DRIVER_RPI
/* References
* http://elinux.org/RPi_VideoCore_APIs
* https://github.com/raspberrypi/firmware/blob/master/opt/vc/src/hello_pi/hello_triangle/triangle.c
* http://cgit.freedesktop.org/wayland/weston/tree/src/rpi-renderer.c
* http://cgit.freedesktop.org/wayland/weston/tree/src/compositor-rpi.c
*/
/* SDL internals */
#include "../SDL_sysvideo.h"
#include "SDL_version.h"
#include "SDL_syswm.h"
#include "SDL_loadso.h"
#include "SDL_events.h"
#include "../../events/SDL_mouse_c.h"
#include "../../events/SDL_keyboard_c.h"
#ifdef SDL_INPUT_LINUXEV
#include "../../input/evdev/SDL_evdev.h"
#endif
/* RPI declarations */
#include "SDL_rpivideo.h"
#include "SDL_rpievents_c.h"
#include "SDL_rpiopengles.h"
#include "SDL_rpimouse.h"
static int
RPI_Available(void)
{
return 1;
}
static void
RPI_Destroy(SDL_VideoDevice * device)
{
/* SDL_VideoData *phdata = (SDL_VideoData *) device->driverdata; */
if (device->driverdata != NULL) {
device->driverdata = NULL;
}
}
static SDL_VideoDevice *
RPI_Create()
{
SDL_VideoDevice *device;
SDL_VideoData *phdata;
/* Initialize SDL_VideoDevice structure */
device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
if (device == NULL) {
SDL_OutOfMemory();
return NULL;
}
/* Initialize internal data */
phdata = (SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
if (phdata == NULL) {
SDL_OutOfMemory();
SDL_free(device);
return NULL;
}
device->driverdata = phdata;
/* Setup amount of available displays and current display */
device->num_displays = 0;
/* Set device free function */
device->free = RPI_Destroy;
/* Setup all functions which we can handle */
device->VideoInit = RPI_VideoInit;
device->VideoQuit = RPI_VideoQuit;
device->GetDisplayModes = RPI_GetDisplayModes;
device->SetDisplayMode = RPI_SetDisplayMode;
device->CreateWindow = RPI_CreateWindow;
device->CreateWindowFrom = RPI_CreateWindowFrom;
device->SetWindowTitle = RPI_SetWindowTitle;
device->SetWindowIcon = RPI_SetWindowIcon;
device->SetWindowPosition = RPI_SetWindowPosition;
device->SetWindowSize = RPI_SetWindowSize;
device->ShowWindow = RPI_ShowWindow;
device->HideWindow = RPI_HideWindow;
device->RaiseWindow = RPI_RaiseWindow;
device->MaximizeWindow = RPI_MaximizeWindow;
device->MinimizeWindow = RPI_MinimizeWindow;
device->RestoreWindow = RPI_RestoreWindow;
device->SetWindowGrab = RPI_SetWindowGrab;
device->DestroyWindow = RPI_DestroyWindow;
device->GetWindowWMInfo = RPI_GetWindowWMInfo;
device->GL_LoadLibrary = RPI_GLES_LoadLibrary;
device->GL_GetProcAddress = RPI_GLES_GetProcAddress;
device->GL_UnloadLibrary = RPI_GLES_UnloadLibrary;
device->GL_CreateContext = RPI_GLES_CreateContext;
device->GL_MakeCurrent = RPI_GLES_MakeCurrent;
device->GL_SetSwapInterval = RPI_GLES_SetSwapInterval;
device->GL_GetSwapInterval = RPI_GLES_GetSwapInterval;
device->GL_SwapWindow = RPI_GLES_SwapWindow;
device->GL_DeleteContext = RPI_GLES_DeleteContext;
device->PumpEvents = RPI_PumpEvents;
return device;
}
VideoBootStrap RPI_bootstrap = {
"RPI",
"RPI Video Driver",
RPI_Available,
RPI_Create
};
/*****************************************************************************/
/* SDL Video and Display initialization/handling functions */
/*****************************************************************************/
int
RPI_VideoInit(_THIS)
{
SDL_VideoDisplay display;
SDL_DisplayMode current_mode;
uint32_t w,h;
/* Initialize BCM Host */
bcm_host_init();
SDL_zero(current_mode);
if (graphics_get_display_size( 0, &w, &h) < 0) {
return -1;
}
current_mode.w = w;
current_mode.h = h;
/* FIXME: Is there a way to tell the actual refresh rate? */
current_mode.refresh_rate = 60;
/* 32 bpp for default */
current_mode.format = SDL_PIXELFORMAT_ABGR8888;
current_mode.driverdata = NULL;
SDL_zero(display);
display.desktop_mode = current_mode;
display.current_mode = current_mode;
SDL_DisplayData *data;
/* Allocate display internal data */
data = (SDL_DisplayData *) SDL_calloc(1, sizeof(SDL_DisplayData));
if (data == NULL) {
return SDL_OutOfMemory();
}
data->dispman_display = vc_dispmanx_display_open( 0 /* LCD */);
display.driverdata = data;
SDL_AddVideoDisplay(&display);
#ifdef SDL_INPUT_LINUXEV
SDL_EVDEV_Init();
#endif
RPI_InitMouse(_this);
return 1;
}
void
RPI_VideoQuit(_THIS)
{
#ifdef SDL_INPUT_LINUXEV
SDL_EVDEV_Quit();
#endif
}
void
RPI_GetDisplayModes(_THIS, SDL_VideoDisplay * display)
{
/* Only one display mode available, the current one */
SDL_AddDisplayMode(display, &display->current_mode);
}
int
RPI_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
{
return 0;
}
int
RPI_CreateWindow(_THIS, SDL_Window * window)
{
SDL_WindowData *wdata;
SDL_VideoDisplay *display;
SDL_DisplayData *displaydata;
VC_RECT_T dst_rect;
VC_RECT_T src_rect;
VC_DISPMANX_ALPHA_T dispman_alpha;
DISPMANX_UPDATE_HANDLE_T dispman_update;
/* Disable alpha, otherwise the app looks composed with whatever dispman is showing (X11, console,etc) */
dispman_alpha.flags = DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS;
dispman_alpha.opacity = 0xFF;
dispman_alpha.mask = 0;
/* Allocate window internal data */
wdata = (SDL_WindowData *) SDL_calloc(1, sizeof(SDL_WindowData));
if (wdata == NULL) {
return SDL_OutOfMemory();
}
display = SDL_GetDisplayForWindow(window);
displaydata = (SDL_DisplayData *) display->driverdata;
/* Windows have one size for now */
window->w = display->desktop_mode.w;
window->h = display->desktop_mode.h;
/* OpenGL ES is the law here, buddy */
window->flags |= SDL_WINDOW_OPENGL;
/* Create a dispman element and associate a window to it */
dst_rect.x = 0;
dst_rect.y = 0;
dst_rect.width = window->w;
dst_rect.height = window->h;
src_rect.x = 0;
src_rect.y = 0;
src_rect.width = window->w << 16;
src_rect.height = window->h << 16;
dispman_update = vc_dispmanx_update_start( 0 );
wdata->dispman_window.element = vc_dispmanx_element_add ( dispman_update, displaydata->dispman_display, SDL_RPI_VIDEOLAYER /* layer */, &dst_rect, 0/*src*/, &src_rect, DISPMANX_PROTECTION_NONE, &dispman_alpha /*alpha*/, 0/*clamp*/, 0/*transform*/);
wdata->dispman_window.width = window->w;
wdata->dispman_window.height = window->h;
vc_dispmanx_update_submit_sync( dispman_update );
if (!_this->egl_data) {
if (SDL_GL_LoadLibrary(NULL) < 0) {
return -1;
}
}
wdata->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType) &wdata->dispman_window);
if (wdata->egl_surface == EGL_NO_SURFACE) {
return SDL_SetError("Could not create GLES window surface");
}
/* Setup driver data for this window */
window->driverdata = wdata;
/* One window, it always has focus */
SDL_SetMouseFocus(window);
SDL_SetKeyboardFocus(window);
/* Window has been successfully created */
return 0;
}
int
RPI_CreateWindowFrom(_THIS, SDL_Window * window, const void *data)
{
return -1;
}
void
RPI_SetWindowTitle(_THIS, SDL_Window * window)
{
}
void
RPI_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon)
{
}
void
RPI_SetWindowPosition(_THIS, SDL_Window * window)
{
}
void
RPI_SetWindowSize(_THIS, SDL_Window * window)
{
}
void
RPI_ShowWindow(_THIS, SDL_Window * window)
{
}
void
RPI_HideWindow(_THIS, SDL_Window * window)
{
}
void
RPI_RaiseWindow(_THIS, SDL_Window * window)
{
}
void
RPI_MaximizeWindow(_THIS, SDL_Window * window)
{
}
void
RPI_MinimizeWindow(_THIS, SDL_Window * window)
{
}
void
RPI_RestoreWindow(_THIS, SDL_Window * window)
{
}
void
RPI_SetWindowGrab(_THIS, SDL_Window * window, SDL_bool grabbed)
{
}
void
RPI_DestroyWindow(_THIS, SDL_Window * window)
{
}
/*****************************************************************************/
/* SDL Window Manager function */
/*****************************************************************************/
SDL_bool
RPI_GetWindowWMInfo(_THIS, SDL_Window * window, struct SDL_SysWMinfo *info)
{
if (info->version.major <= SDL_MAJOR_VERSION) {
return SDL_TRUE;
} else {
SDL_SetError("application not compiled with SDL %d.%d\n",
SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
return SDL_FALSE;
}
/* Failed to get window manager information */
return SDL_FALSE;
}
#endif /* SDL_VIDEO_DRIVER_RPI */
/* vi: set ts=4 sw=4 expandtab: */

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src/video/raspberry/SDL_rpivideo.h Normal file
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef __SDL_RPIVIDEO_H__
#define __SDL_RPIVIDEO_H__
#include "SDL_config.h"
#include "../SDL_sysvideo.h"
#include "bcm_host.h"
#include "GLES/gl.h"
#include "EGL/egl.h"
#include "EGL/eglext.h"
typedef struct SDL_VideoData
{
uint32_t egl_refcount; /* OpenGL ES reference count */
} SDL_VideoData;
typedef struct SDL_DisplayData
{
DISPMANX_DISPLAY_HANDLE_T dispman_display;
} SDL_DisplayData;
typedef struct SDL_WindowData
{
EGL_DISPMANX_WINDOW_T dispman_window;
#if SDL_VIDEO_OPENGL_EGL
EGLSurface egl_surface;
#endif
} SDL_WindowData;
#define SDL_RPI_VIDEOLAYER 10000 /* High enough so to occlude everything */
#define SDL_RPI_MOUSELAYER SDL_RPI_VIDEOLAYER + 1
/****************************************************************************/
/* SDL_VideoDevice functions declaration */
/****************************************************************************/
/* Display and window functions */
int RPI_VideoInit(_THIS);
void RPI_VideoQuit(_THIS);
void RPI_GetDisplayModes(_THIS, SDL_VideoDisplay * display);
int RPI_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode);
int RPI_CreateWindow(_THIS, SDL_Window * window);
int RPI_CreateWindowFrom(_THIS, SDL_Window * window, const void *data);
void RPI_SetWindowTitle(_THIS, SDL_Window * window);
void RPI_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon);
void RPI_SetWindowPosition(_THIS, SDL_Window * window);
void RPI_SetWindowSize(_THIS, SDL_Window * window);
void RPI_ShowWindow(_THIS, SDL_Window * window);
void RPI_HideWindow(_THIS, SDL_Window * window);
void RPI_RaiseWindow(_THIS, SDL_Window * window);
void RPI_MaximizeWindow(_THIS, SDL_Window * window);
void RPI_MinimizeWindow(_THIS, SDL_Window * window);
void RPI_RestoreWindow(_THIS, SDL_Window * window);
void RPI_SetWindowGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
void RPI_DestroyWindow(_THIS, SDL_Window * window);
/* Window manager function */
SDL_bool RPI_GetWindowWMInfo(_THIS, SDL_Window * window,
struct SDL_SysWMinfo *info);
/* OpenGL/OpenGL ES functions */
int RPI_GLES_LoadLibrary(_THIS, const char *path);
void *RPI_GLES_GetProcAddress(_THIS, const char *proc);
void RPI_GLES_UnloadLibrary(_THIS);
SDL_GLContext RPI_GLES_CreateContext(_THIS, SDL_Window * window);
int RPI_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
int RPI_GLES_SetSwapInterval(_THIS, int interval);
int RPI_GLES_GetSwapInterval(_THIS);
void RPI_GLES_SwapWindow(_THIS, SDL_Window * window);
void RPI_GLES_DeleteContext(_THIS, SDL_GLContext context);
#endif /* __SDL_RPIVIDEO_H__ */
/* vi: set ts=4 sw=4 expandtab: */