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Added a Windows Gaming Input joystick driver

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This driver supports the Razer Atrox Arcade Stick

Some of the quirks of this driver, inherent in Windows Gaming Input:
* There will never appear to be controllers connected at startup. You must support hot-plugging in order to see these controllers.
* You can't read the state of the guide button
* You can't get controller events in the background
This commit is contained in:
Sam Lantinga
2020-04-18 21:41:37 -07:00
parent b90b59279e
commit aba2792896
13 changed files with 1043 additions and 418 deletions
Download Patch File Download Diff File Expand all files Collapse all files

74
test/controllermap.c
View File

@@ -155,6 +155,9 @@ static int s_iCurrentBinding;
static Uint32 s_unPendingAdvanceTime;
static SDL_bool s_bBindingComplete;
static SDL_Window *window;
static SDL_bool done = SDL_FALSE;
SDL_Texture *
LoadTexture(SDL_Renderer *renderer, const char *file, SDL_bool transparent)
{
@@ -357,30 +360,18 @@ BMergeAxisBindings(int iIndex)
static void
WatchJoystick(SDL_Joystick * joystick)
{
SDL_Window *window = NULL;
SDL_Renderer *screen = NULL;
SDL_Texture *background, *button, *axis, *marker;
const char *name = NULL;
SDL_bool done = SDL_FALSE;
SDL_Event event;
SDL_Rect dst;
Uint8 alpha=200, alpha_step = -1;
Uint32 alpha_ticks = 0;
SDL_JoystickID nJoystickID;
/* Create a window to display joystick axis position */
window = SDL_CreateWindow("Game Controller Map", SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH,
SCREEN_HEIGHT, 0);
if (window == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s\n", SDL_GetError());
return;
}
screen = SDL_CreateRenderer(window, -1, 0);
if (screen == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError());
SDL_DestroyWindow(window);
return;
}
@@ -705,7 +696,6 @@ WatchJoystick(SDL_Joystick * joystick)
s_arrAxisState = NULL;
SDL_DestroyRenderer(screen);
SDL_DestroyWindow(window);
}
int
@@ -724,6 +714,34 @@ main(int argc, char *argv[])
exit(1);
}
/* Create a window to display joystick axis position */
window = SDL_CreateWindow("Game Controller Map", SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH,
SCREEN_HEIGHT, 0);
if (window == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s\n", SDL_GetError());
return 2;
}
while (SDL_NumJoysticks() == 0) {
SDL_Event event;
while (SDL_PollEvent(&event) > 0) {
switch (event.type) {
case SDL_KEYDOWN:
if ((event.key.keysym.sym != SDLK_ESCAPE)) {
break;
}
/* Fall through to signal quit */
case SDL_QUIT:
done = SDL_TRUE;
break;
default:
break;
}
}
}
/* Print information about the joysticks */
SDL_Log("There are %d joysticks attached\n", SDL_NumJoysticks());
for (i = 0; i < SDL_NumJoysticks(); ++i) {
@@ -748,28 +766,16 @@ main(int argc, char *argv[])
}
}
#ifdef __ANDROID__
if (SDL_NumJoysticks() > 0) {
#else
if (argv[1]) {
#endif
int device;
#ifdef __ANDROID__
device = 0;
#else
device = atoi(argv[1]);
#endif
joystick = SDL_JoystickOpen(device);
if (joystick == NULL) {
SDL_Log("Couldn't open joystick %d: %s\n", device, SDL_GetError());
} else {
WatchJoystick(joystick);
SDL_JoystickClose(joystick);
}
}
else {
SDL_Log("\n\nUsage: ./controllermap number\nFor example: ./controllermap 0\nOr: ./controllermap 0 >> gamecontrollerdb.txt");
joystick = SDL_JoystickOpen(0);
if (joystick == NULL) {
SDL_Log("Couldn't open joystick 0: %s\n", SDL_GetError());
} else {
WatchJoystick(joystick);
SDL_JoystickClose(joystick);
}
SDL_DestroyWindow(window);
SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK);
return 0;

286
test/testgamecontroller.c
View File

@@ -61,10 +61,12 @@ static const struct { int x; int y; double angle; } axis_positions[] = {
{375, -20, 0.0}, /* TRIGGERRIGHT */
};
SDL_Window *window = NULL;
SDL_Renderer *screen = NULL;
SDL_bool retval = SDL_FALSE;
SDL_bool done = SDL_FALSE;
SDL_Texture *background, *button, *axis;
SDL_GameController *gamecontroller;
static SDL_Texture *
LoadTexture(SDL_Renderer *renderer, const char *file, SDL_bool transparent)
@@ -94,12 +96,29 @@ LoadTexture(SDL_Renderer *renderer, const char *file, SDL_bool transparent)
return texture;
}
static void
UpdateWindowTitle()
{
const char *name = SDL_GameControllerName(gamecontroller);
const char *basetitle = "Game Controller Test: ";
const size_t titlelen = SDL_strlen(basetitle) + SDL_strlen(name) + 1;
char *title = (char *)SDL_malloc(titlelen);
retval = SDL_FALSE;
done = SDL_FALSE;
if (title) {
SDL_snprintf(title, titlelen, "%s%s", basetitle, name);
SDL_SetWindowTitle(window, title);
SDL_free(title);
}
}
void
loop(void *arg)
{
SDL_Event event;
int i;
SDL_GameController *gamecontroller = (SDL_GameController *)arg;
/* blank screen, set up for drawing this frame. */
SDL_SetRenderDrawColor(screen, 0xFF, 0xFF, 0xFF, SDL_ALPHA_OPAQUE);
@@ -108,6 +127,29 @@ loop(void *arg)
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_CONTROLLERDEVICEADDED:
SDL_Log("Game controller device %d added.\n", (int) event.cdevice.which);
if (!gamecontroller) {
gamecontroller = SDL_GameControllerOpen(event.cdevice.which);
if (gamecontroller) {
UpdateWindowTitle();
} else {
SDL_Log("Couldn't open controller: %s\n", SDL_GetError());
}
}
break;
case SDL_CONTROLLERDEVICEREMOVED:
SDL_Log("Game controller device %d removed.\n", (int) event.cdevice.which);
if (gamecontroller && event.cdevice.which == SDL_JoystickInstanceID(SDL_GameControllerGetJoystick(gamecontroller))) {
SDL_GameControllerClose(gamecontroller);
gamecontroller = SDL_GameControllerOpen(0);
if (gamecontroller) {
UpdateWindowTitle();
}
}
break;
case SDL_CONTROLLERAXISMOTION:
SDL_Log("Controller axis %s changed to %d\n", SDL_GameControllerGetStringForAxis((SDL_GameControllerAxis)event.caxis.axis), event.caxis.value);
break;
@@ -128,42 +170,39 @@ loop(void *arg)
}
}
/* Update visual controller state */
for (i = 0; i < SDL_CONTROLLER_BUTTON_MAX; ++i) {
if (SDL_GameControllerGetButton(gamecontroller, (SDL_GameControllerButton)i) == SDL_PRESSED) {
const SDL_Rect dst = { button_positions[i].x, button_positions[i].y, 50, 50 };
SDL_RenderCopyEx(screen, button, NULL, &dst, 0, NULL, SDL_FLIP_NONE);
if (gamecontroller) {
/* Update visual controller state */
for (i = 0; i < SDL_CONTROLLER_BUTTON_MAX; ++i) {
if (SDL_GameControllerGetButton(gamecontroller, (SDL_GameControllerButton)i) == SDL_PRESSED) {
const SDL_Rect dst = { button_positions[i].x, button_positions[i].y, 50, 50 };
SDL_RenderCopyEx(screen, button, NULL, &dst, 0, NULL, SDL_FLIP_NONE);
}
}
}
for (i = 0; i < SDL_CONTROLLER_AXIS_MAX; ++i) {
const Sint16 deadzone = 8000; /* !!! FIXME: real deadzone */
const Sint16 value = SDL_GameControllerGetAxis(gamecontroller, (SDL_GameControllerAxis)(i));
if (value < -deadzone) {
const SDL_Rect dst = { axis_positions[i].x, axis_positions[i].y, 50, 50 };
const double angle = axis_positions[i].angle;
SDL_RenderCopyEx(screen, axis, NULL, &dst, angle, NULL, SDL_FLIP_NONE);
} else if (value > deadzone) {
const SDL_Rect dst = { axis_positions[i].x, axis_positions[i].y, 50, 50 };
const double angle = axis_positions[i].angle + 180.0;
SDL_RenderCopyEx(screen, axis, NULL, &dst, angle, NULL, SDL_FLIP_NONE);
for (i = 0; i < SDL_CONTROLLER_AXIS_MAX; ++i) {
const Sint16 deadzone = 8000; /* !!! FIXME: real deadzone */
const Sint16 value = SDL_GameControllerGetAxis(gamecontroller, (SDL_GameControllerAxis)(i));
if (value < -deadzone) {
const SDL_Rect dst = { axis_positions[i].x, axis_positions[i].y, 50, 50 };
const double angle = axis_positions[i].angle;
SDL_RenderCopyEx(screen, axis, NULL, &dst, angle, NULL, SDL_FLIP_NONE);
} else if (value > deadzone) {
const SDL_Rect dst = { axis_positions[i].x, axis_positions[i].y, 50, 50 };
const double angle = axis_positions[i].angle + 180.0;
SDL_RenderCopyEx(screen, axis, NULL, &dst, angle, NULL, SDL_FLIP_NONE);
}
}
}
/* Update rumble based on trigger state */
{
Uint16 low_frequency_rumble = SDL_GameControllerGetAxis(gamecontroller, SDL_CONTROLLER_AXIS_TRIGGERLEFT) * 2;
Uint16 high_frequency_rumble = SDL_GameControllerGetAxis(gamecontroller, SDL_CONTROLLER_AXIS_TRIGGERRIGHT) * 2;
SDL_GameControllerRumble(gamecontroller, low_frequency_rumble, high_frequency_rumble, 250);
/* Update rumble based on trigger state */
{
Uint16 low_frequency_rumble = SDL_GameControllerGetAxis(gamecontroller, SDL_CONTROLLER_AXIS_TRIGGERLEFT) * 2;
Uint16 high_frequency_rumble = SDL_GameControllerGetAxis(gamecontroller, SDL_CONTROLLER_AXIS_TRIGGERRIGHT) * 2;
SDL_GameControllerRumble(gamecontroller, low_frequency_rumble, high_frequency_rumble, 250);
}
}
SDL_RenderPresent(screen);
if (!SDL_GameControllerGetAttached(gamecontroller)) {
done = SDL_TRUE;
retval = SDL_TRUE; /* keep going, wait for reattach. */
}
#ifdef __EMSCRIPTEN__
if (done) {
emscripten_cancel_main_loop();
@@ -171,92 +210,12 @@ loop(void *arg)
#endif
}
SDL_bool
WatchGameController(SDL_GameController * gamecontroller)
{
const char *name = SDL_GameControllerName(gamecontroller);
const char *basetitle = "Game Controller Test: ";
const size_t titlelen = SDL_strlen(basetitle) + SDL_strlen(name) + 1;
char *title = (char *)SDL_malloc(titlelen);
SDL_Window *window = NULL;
retval = SDL_FALSE;
done = SDL_FALSE;
if (title) {
SDL_snprintf(title, titlelen, "%s%s", basetitle, name);
}
/* Create a window to display controller state */
window = SDL_CreateWindow(title, SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH,
SCREEN_HEIGHT, 0);
SDL_free(title);
title = NULL;
if (window == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s\n", SDL_GetError());
return SDL_FALSE;
}
screen = SDL_CreateRenderer(window, -1, 0);
if (screen == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError());
SDL_DestroyWindow(window);
return SDL_FALSE;
}
SDL_SetRenderDrawColor(screen, 0x00, 0x00, 0x00, SDL_ALPHA_OPAQUE);
SDL_RenderClear(screen);
SDL_RenderPresent(screen);
SDL_RaiseWindow(window);
/* scale for platforms that don't give you the window size you asked for. */
SDL_RenderSetLogicalSize(screen, SCREEN_WIDTH, SCREEN_HEIGHT);
background = LoadTexture(screen, "controllermap.bmp", SDL_FALSE);
button = LoadTexture(screen, "button.bmp", SDL_TRUE);
axis = LoadTexture(screen, "axis.bmp", SDL_TRUE);
if (!background || !button || !axis) {
SDL_DestroyRenderer(screen);
SDL_DestroyWindow(window);
return SDL_FALSE;
}
SDL_SetTextureColorMod(button, 10, 255, 21);
SDL_SetTextureColorMod(axis, 10, 255, 21);
/* !!! FIXME: */
/*SDL_RenderSetLogicalSize(screen, background->w, background->h);*/
/* Print info about the controller we are watching */
SDL_Log("Watching controller %s\n", name ? name : "Unknown Controller");
/* Loop, getting controller events! */
#ifdef __EMSCRIPTEN__
emscripten_set_main_loop_arg(loop, gamecontroller, 0, 1);
#else
while (!done) {
loop(gamecontroller);
}
#endif
SDL_DestroyRenderer(screen);
screen = NULL;
background = NULL;
button = NULL;
axis = NULL;
SDL_DestroyWindow(window);
return retval;
}
int
main(int argc, char *argv[])
{
int i;
int nController = 0;
int retcode = 0;
char guid[64];
SDL_GameController *gamecontroller;
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
@@ -270,7 +229,7 @@ main(int argc, char *argv[])
SDL_GameControllerAddMappingsFromFile("gamecontrollerdb.txt");
/* Print information about the mappings */
if (!argv[1]) {
if (argv[1] && SDL_strcmp(argv[1], "--mappings") == 0) {
SDL_Log("Supported mappings:\n");
for (i = 0; i < SDL_GameControllerNumMappings(); ++i) {
char *mapping = SDL_GameControllerMappingForIndex(i);
@@ -290,8 +249,7 @@ main(int argc, char *argv[])
SDL_JoystickGetGUIDString(SDL_JoystickGetDeviceGUID(i),
guid, sizeof (guid));
if ( SDL_IsGameController(i) )
{
if ( SDL_IsGameController(i) ) {
nController++;
name = SDL_GameControllerNameForIndex(i);
switch (SDL_GameControllerTypeForIndex(i)) {
@@ -327,62 +285,62 @@ main(int argc, char *argv[])
}
SDL_Log("There are %d game controller(s) attached (%d joystick(s))\n", nController, SDL_NumJoysticks());
if (argv[1]) {
SDL_bool reportederror = SDL_FALSE;
SDL_bool keepGoing = SDL_TRUE;
SDL_Event event;
int device = atoi(argv[1]);
if (device >= SDL_NumJoysticks()) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "%i is an invalid joystick index.\n", device);
retcode = 1;
} else {
SDL_JoystickGetGUIDString(SDL_JoystickGetDeviceGUID(device),
guid, sizeof (guid));
SDL_Log("Attempting to open device %i, guid %s\n", device, guid);
gamecontroller = SDL_GameControllerOpen(device);
if (gamecontroller != NULL) {
SDL_assert(SDL_GameControllerFromInstanceID(SDL_JoystickInstanceID(SDL_GameControllerGetJoystick(gamecontroller))) == gamecontroller);
}
while (keepGoing) {
if (gamecontroller == NULL) {
if (!reportederror) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't open gamecontroller %d: %s\n", device, SDL_GetError());
retcode = 1;
keepGoing = SDL_FALSE;
reportederror = SDL_TRUE;
}
} else {
reportederror = SDL_FALSE;
keepGoing = WatchGameController(gamecontroller);
SDL_GameControllerClose(gamecontroller);
}
gamecontroller = NULL;
if (keepGoing) {
SDL_Log("Waiting for attach\n");
}
while (keepGoing) {
SDL_WaitEvent(&event);
if ((event.type == SDL_QUIT) || (event.type == SDL_FINGERDOWN)
|| (event.type == SDL_MOUSEBUTTONDOWN)) {
keepGoing = SDL_FALSE;
} else if (event.type == SDL_CONTROLLERDEVICEADDED) {
gamecontroller = SDL_GameControllerOpen(event.cdevice.which);
if (gamecontroller != NULL) {
SDL_assert(SDL_GameControllerFromInstanceID(SDL_JoystickInstanceID(SDL_GameControllerGetJoystick(gamecontroller))) == gamecontroller);
}
break;
}
}
}
}
/* Create a window to display controller state */
window = SDL_CreateWindow("Game Controller Test", SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH,
SCREEN_HEIGHT, 0);
if (window == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s\n", SDL_GetError());
return 2;
}
screen = SDL_CreateRenderer(window, -1, 0);
if (screen == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError());
SDL_DestroyWindow(window);
return 2;
}
SDL_SetRenderDrawColor(screen, 0x00, 0x00, 0x00, SDL_ALPHA_OPAQUE);
SDL_RenderClear(screen);
SDL_RenderPresent(screen);
/* scale for platforms that don't give you the window size you asked for. */
SDL_RenderSetLogicalSize(screen, SCREEN_WIDTH, SCREEN_HEIGHT);
background = LoadTexture(screen, "controllermap.bmp", SDL_FALSE);
button = LoadTexture(screen, "button.bmp", SDL_TRUE);
axis = LoadTexture(screen, "axis.bmp", SDL_TRUE);
if (!background || !button || !axis) {
SDL_DestroyRenderer(screen);
SDL_DestroyWindow(window);
return 2;
}
SDL_SetTextureColorMod(button, 10, 255, 21);
SDL_SetTextureColorMod(axis, 10, 255, 21);
/* !!! FIXME: */
/*SDL_RenderSetLogicalSize(screen, background->w, background->h);*/
/* Loop, getting controller events! */
#ifdef __EMSCRIPTEN__
emscripten_set_main_loop_arg(loop, NULL, 0, 1);
#else
while (!done) {
loop(NULL);
}
#endif
SDL_DestroyRenderer(screen);
screen = NULL;
background = NULL;
button = NULL;
axis = NULL;
SDL_DestroyWindow(window);
SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER);
return retcode;
return 0;
}
#else

361
test/testjoystick.c
View File

@@ -32,9 +32,62 @@
#define SCREEN_HEIGHT 480
#endif
SDL_Renderer *screen = NULL;
SDL_bool retval = SDL_FALSE;
SDL_bool done = SDL_FALSE;
static SDL_Window *window = NULL;
static SDL_Renderer *screen = NULL;
static SDL_Joystick *joystick = NULL;
static SDL_bool done = SDL_FALSE;
static void
PrintJoystick(SDL_Joystick *joystick)
{
const char *type;
char guid[64];
SDL_assert(SDL_JoystickFromInstanceID(SDL_JoystickInstanceID(joystick)) == joystick);
SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(joystick), guid, sizeof (guid));
switch (SDL_JoystickGetType(joystick)) {
case SDL_JOYSTICK_TYPE_GAMECONTROLLER:
type = "Game Controller";
break;
case SDL_JOYSTICK_TYPE_WHEEL:
type = "Wheel";
break;
case SDL_JOYSTICK_TYPE_ARCADE_STICK:
type = "Arcade Stick";
break;
case SDL_JOYSTICK_TYPE_FLIGHT_STICK:
type = "Flight Stick";
break;
case SDL_JOYSTICK_TYPE_DANCE_PAD:
type = "Dance Pad";
break;
case SDL_JOYSTICK_TYPE_GUITAR:
type = "Guitar";
break;
case SDL_JOYSTICK_TYPE_DRUM_KIT:
type = "Drum Kit";
break;
case SDL_JOYSTICK_TYPE_ARCADE_PAD:
type = "Arcade Pad";
break;
case SDL_JOYSTICK_TYPE_THROTTLE:
type = "Throttle";
break;
default:
type = "Unknown";
break;
}
SDL_Log("Joystick\n");
SDL_Log(" name: %s\n", SDL_JoystickName(joystick));
SDL_Log(" type: %s\n", type);
SDL_Log(" axes: %d\n", SDL_JoystickNumAxes(joystick));
SDL_Log(" balls: %d\n", SDL_JoystickNumBalls(joystick));
SDL_Log(" hats: %d\n", SDL_JoystickNumHats(joystick));
SDL_Log(" buttons: %d\n", SDL_JoystickNumButtons(joystick));
SDL_Log("instance id: %d\n", SDL_JoystickInstanceID(joystick));
SDL_Log(" guid: %s\n", guid);
SDL_Log(" VID/PID: 0x%.4x/0x%.4x\n", SDL_JoystickGetVendor(joystick), SDL_JoystickGetProduct(joystick));
}
static void
DrawRect(SDL_Renderer *r, const int x, const int y, const int w, const int h)
@@ -48,72 +101,89 @@ loop(void *arg)
{
SDL_Event event;
int i;
SDL_Joystick *joystick = (SDL_Joystick *)arg;
/* blank screen, set up for drawing this frame. */
/* blank screen, set up for drawing this frame. */
SDL_SetRenderDrawColor(screen, 0x0, 0x0, 0x0, SDL_ALPHA_OPAQUE);
SDL_RenderClear(screen);
SDL_RenderClear(screen);
while (SDL_PollEvent(&event)) {
switch (event.type) {
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_JOYDEVICEREMOVED:
SDL_Log("Joystick device %d removed.\n", (int) event.jdevice.which);
SDL_Log("Our instance ID is %d\n", (int) SDL_JoystickInstanceID(joystick));
break;
case SDL_JOYAXISMOTION:
SDL_Log("Joystick %d axis %d value: %d\n",
event.jaxis.which,
event.jaxis.axis, event.jaxis.value);
break;
case SDL_JOYHATMOTION:
SDL_Log("Joystick %d hat %d value:",
event.jhat.which, event.jhat.hat);
if (event.jhat.value == SDL_HAT_CENTERED)
SDL_Log(" centered");
if (event.jhat.value & SDL_HAT_UP)
SDL_Log(" up");
if (event.jhat.value & SDL_HAT_RIGHT)
SDL_Log(" right");
if (event.jhat.value & SDL_HAT_DOWN)
SDL_Log(" down");
if (event.jhat.value & SDL_HAT_LEFT)
SDL_Log(" left");
SDL_Log("\n");
break;
case SDL_JOYBALLMOTION:
SDL_Log("Joystick %d ball %d delta: (%d,%d)\n",
event.jball.which,
event.jball.ball, event.jball.xrel, event.jball.yrel);
break;
case SDL_JOYBUTTONDOWN:
SDL_Log("Joystick %d button %d down\n",
event.jbutton.which, event.jbutton.button);
/* First button triggers a 0.5 second full strength rumble */
if (event.jbutton.button == 0) {
SDL_JoystickRumble(joystick, 0xFFFF, 0xFFFF, 500);
case SDL_JOYDEVICEADDED:
SDL_Log("Joystick device %d added.\n", (int) event.jdevice.which);
if (!joystick) {
joystick = SDL_JoystickOpen(event.jdevice.which);
if (joystick) {
PrintJoystick(joystick);
} else {
SDL_Log("Couldn't open joystick: %s\n", SDL_GetError());
}
break;
case SDL_JOYBUTTONUP:
SDL_Log("Joystick %d button %d up\n",
event.jbutton.which, event.jbutton.button);
break;
case SDL_KEYDOWN:
if ((event.key.keysym.sym != SDLK_ESCAPE) &&
(event.key.keysym.sym != SDLK_AC_BACK)) {
break;
}
/* Fall through to signal quit */
case SDL_FINGERDOWN:
case SDL_MOUSEBUTTONDOWN:
case SDL_QUIT:
done = SDL_TRUE;
break;
default:
}
break;
case SDL_JOYDEVICEREMOVED:
SDL_Log("Joystick device %d removed.\n", (int) event.jdevice.which);
if (event.jdevice.which == SDL_JoystickInstanceID(joystick)) {
SDL_JoystickClose(joystick);
joystick = SDL_JoystickOpen(0);
}
break;
case SDL_JOYAXISMOTION:
SDL_Log("Joystick %d axis %d value: %d\n",
event.jaxis.which,
event.jaxis.axis, event.jaxis.value);
break;
case SDL_JOYHATMOTION:
SDL_Log("Joystick %d hat %d value:",
event.jhat.which, event.jhat.hat);
if (event.jhat.value == SDL_HAT_CENTERED)
SDL_Log(" centered");
if (event.jhat.value & SDL_HAT_UP)
SDL_Log(" up");
if (event.jhat.value & SDL_HAT_RIGHT)
SDL_Log(" right");
if (event.jhat.value & SDL_HAT_DOWN)
SDL_Log(" down");
if (event.jhat.value & SDL_HAT_LEFT)
SDL_Log(" left");
SDL_Log("\n");
break;
case SDL_JOYBALLMOTION:
SDL_Log("Joystick %d ball %d delta: (%d,%d)\n",
event.jball.which,
event.jball.ball, event.jball.xrel, event.jball.yrel);
break;
case SDL_JOYBUTTONDOWN:
SDL_Log("Joystick %d button %d down\n",
event.jbutton.which, event.jbutton.button);
/* First button triggers a 0.5 second full strength rumble */
if (event.jbutton.button == 0) {
SDL_JoystickRumble(joystick, 0xFFFF, 0xFFFF, 500);
}
break;
case SDL_JOYBUTTONUP:
SDL_Log("Joystick %d button %d up\n",
event.jbutton.which, event.jbutton.button);
break;
case SDL_KEYDOWN:
if ((event.key.keysym.sym != SDLK_ESCAPE) &&
(event.key.keysym.sym != SDLK_AC_BACK)) {
break;
}
/* Fall through to signal quit */
case SDL_FINGERDOWN:
case SDL_MOUSEBUTTONDOWN:
case SDL_QUIT:
done = SDL_TRUE;
break;
default:
break;
}
}
if (joystick) {
/* Update visual joystick state */
SDL_SetRenderDrawColor(screen, 0x00, 0xFF, 0x00, SDL_ALPHA_OPAQUE);
for (i = 0; i < SDL_JoystickNumButtons(joystick); ++i) {
@@ -172,13 +242,9 @@ loop(void *arg)
DrawRect(screen, x, y, 8, 8);
}
}
SDL_RenderPresent(screen);
if (SDL_JoystickGetAttached( joystick ) == 0) {
done = SDL_TRUE;
retval = SDL_TRUE; /* keep going, wait for reattach. */
}
SDL_RenderPresent(screen);
#ifdef __EMSCRIPTEN__
if (done) {
@@ -187,14 +253,19 @@ loop(void *arg)
#endif
}
static SDL_bool
WatchJoystick(SDL_Joystick * joystick)
int
main(int argc, char *argv[])
{
SDL_Window *window = NULL;
const char *name = NULL;
SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, "0");
retval = SDL_FALSE;
done = SDL_FALSE;
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
/* Initialize SDL (Note: video is required to start event loop) */
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
exit(1);
}
/* Create a window to display joystick axis position */
window = SDL_CreateWindow("Joystick Test", SDL_WINDOWPOS_CENTERED,
@@ -215,159 +286,19 @@ WatchJoystick(SDL_Joystick * joystick)
SDL_SetRenderDrawColor(screen, 0x00, 0x00, 0x00, SDL_ALPHA_OPAQUE);
SDL_RenderClear(screen);
SDL_RenderPresent(screen);
SDL_RaiseWindow(window);
/* Print info about the joystick we are watching */
name = SDL_JoystickName(joystick);
SDL_Log("Watching joystick %d: (%s)\n", SDL_JoystickInstanceID(joystick),
name ? name : "Unknown Joystick");
SDL_Log("Joystick has %d axes, %d hats, %d balls, and %d buttons\n",
SDL_JoystickNumAxes(joystick), SDL_JoystickNumHats(joystick),
SDL_JoystickNumBalls(joystick), SDL_JoystickNumButtons(joystick));
/* Loop, getting joystick events! */
#ifdef __EMSCRIPTEN__
emscripten_set_main_loop_arg(loop, joystick, 0, 1);
emscripten_set_main_loop_arg(loop, NULL, 0, 1);
#else
while (!done) {
loop(joystick);
loop(NULL);
}
#endif
SDL_DestroyRenderer(screen);
screen = NULL;
SDL_DestroyWindow(window);
return retval;
}
int
main(int argc, char *argv[])
{
const char *name, *type;
int i;
SDL_Joystick *joystick;
SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, "0");
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
/* Initialize SDL (Note: video is required to start event loop) */
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
exit(1);
}
/* Print information about the joysticks */
SDL_Log("There are %d joysticks attached\n", SDL_NumJoysticks());
for (i = 0; i < SDL_NumJoysticks(); ++i) {
name = SDL_JoystickNameForIndex(i);
SDL_Log("Joystick %d: %s\n", i, name ? name : "Unknown Joystick");
joystick = SDL_JoystickOpen(i);
if (joystick == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_JoystickOpen(%d) failed: %s\n", i,
SDL_GetError());
} else {
char guid[64];
SDL_assert(SDL_JoystickFromInstanceID(SDL_JoystickInstanceID(joystick)) == joystick);
SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(joystick),
guid, sizeof (guid));
switch (SDL_JoystickGetType(joystick)) {
case SDL_JOYSTICK_TYPE_GAMECONTROLLER:
type = "Game Controller";
break;
case SDL_JOYSTICK_TYPE_WHEEL:
type = "Wheel";
break;
case SDL_JOYSTICK_TYPE_ARCADE_STICK:
type = "Arcade Stick";
break;
case SDL_JOYSTICK_TYPE_FLIGHT_STICK:
type = "Flight Stick";
break;
case SDL_JOYSTICK_TYPE_DANCE_PAD:
type = "Dance Pad";
break;
case SDL_JOYSTICK_TYPE_GUITAR:
type = "Guitar";
break;
case SDL_JOYSTICK_TYPE_DRUM_KIT:
type = "Drum Kit";
break;
case SDL_JOYSTICK_TYPE_ARCADE_PAD:
type = "Arcade Pad";
break;
case SDL_JOYSTICK_TYPE_THROTTLE:
type = "Throttle";
break;
default:
type = "Unknown";
break;
}
SDL_Log(" type: %s\n", type);
SDL_Log(" axes: %d\n", SDL_JoystickNumAxes(joystick));
SDL_Log(" balls: %d\n", SDL_JoystickNumBalls(joystick));
SDL_Log(" hats: %d\n", SDL_JoystickNumHats(joystick));
SDL_Log(" buttons: %d\n", SDL_JoystickNumButtons(joystick));
SDL_Log("instance id: %d\n", SDL_JoystickInstanceID(joystick));
SDL_Log(" guid: %s\n", guid);
SDL_Log(" VID/PID: 0x%.4x/0x%.4x\n", SDL_JoystickGetVendor(joystick), SDL_JoystickGetProduct(joystick));
SDL_JoystickClose(joystick);
}
}
#if defined(__ANDROID__) || defined(__IPHONEOS__)
if (SDL_NumJoysticks() > 0) {
#else
if (argv[1]) {
#endif
SDL_bool reportederror = SDL_FALSE;
SDL_bool keepGoing = SDL_TRUE;
SDL_Event event;
int device;
#if defined(__ANDROID__) || defined(__IPHONEOS__)
device = 0;
#else
device = atoi(argv[1]);
#endif
joystick = SDL_JoystickOpen(device);
if (joystick != NULL) {
SDL_assert(SDL_JoystickFromInstanceID(SDL_JoystickInstanceID(joystick)) == joystick);
}
while ( keepGoing ) {
if (joystick == NULL) {
if ( !reportederror ) {
SDL_Log("Couldn't open joystick %d: %s\n", device, SDL_GetError());
keepGoing = SDL_FALSE;
reportederror = SDL_TRUE;
}
} else {
reportederror = SDL_FALSE;
keepGoing = WatchJoystick(joystick);
SDL_JoystickClose(joystick);
}
joystick = NULL;
if (keepGoing) {
SDL_Log("Waiting for attach\n");
}
while (keepGoing) {
SDL_WaitEvent(&event);
if ((event.type == SDL_QUIT) || (event.type == SDL_FINGERDOWN)
|| (event.type == SDL_MOUSEBUTTONDOWN)) {
keepGoing = SDL_FALSE;
} else if (event.type == SDL_JOYDEVICEADDED) {
device = event.jdevice.which;
joystick = SDL_JoystickOpen(device);
if (joystick != NULL) {
SDL_assert(SDL_JoystickFromInstanceID(SDL_JoystickInstanceID(joystick)) == joystick);
}
break;
}
}
}
}
SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK);
return 0;