mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-20 22:16:49 +01:00
0e45984fa0
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
384 lines
12 KiB
C
384 lines
12 KiB
C
/*
|
|
Simple DirectMedia Layer
|
|
Copyright (C) 1997-2015 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_internal.h"
|
|
|
|
#include "../SDL_sysjoystick.h"
|
|
|
|
#if SDL_JOYSTICK_XINPUT
|
|
|
|
#include "SDL_assert.h"
|
|
#include "SDL_hints.h"
|
|
#include "SDL_windowsjoystick_c.h"
|
|
#include "SDL_xinputjoystick_c.h"
|
|
|
|
/*
|
|
* Internal stuff.
|
|
*/
|
|
static SDL_bool s_bXInputEnabled = SDL_TRUE;
|
|
|
|
|
|
static SDL_bool
|
|
SDL_XInputUseOldJoystickMapping()
|
|
{
|
|
static int s_XInputUseOldJoystickMapping = -1;
|
|
if (s_XInputUseOldJoystickMapping < 0) {
|
|
const char *hint = SDL_GetHint(SDL_HINT_XINPUT_USE_OLD_JOYSTICK_MAPPING);
|
|
s_XInputUseOldJoystickMapping = (hint && *hint == '1') ? 1 : 0;
|
|
}
|
|
return (s_XInputUseOldJoystickMapping > 0);
|
|
}
|
|
|
|
SDL_bool SDL_XINPUT_Enabled(void)
|
|
{
|
|
return s_bXInputEnabled;
|
|
}
|
|
|
|
int
|
|
SDL_XINPUT_JoystickInit(void)
|
|
{
|
|
const char *env = SDL_GetHint(SDL_HINT_XINPUT_ENABLED);
|
|
if (env && !SDL_atoi(env)) {
|
|
s_bXInputEnabled = SDL_FALSE;
|
|
}
|
|
|
|
if (s_bXInputEnabled && WIN_LoadXInputDLL() < 0) {
|
|
s_bXInputEnabled = SDL_FALSE; /* oh well. */
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static char *
|
|
GetXInputName(const Uint8 userid, BYTE SubType)
|
|
{
|
|
char name[32];
|
|
|
|
if (SDL_XInputUseOldJoystickMapping()) {
|
|
SDL_snprintf(name, sizeof(name), "X360 Controller #%u", 1 + userid);
|
|
} else {
|
|
switch (SubType) {
|
|
case XINPUT_DEVSUBTYPE_GAMEPAD:
|
|
SDL_snprintf(name, sizeof(name), "XInput Controller #%u", 1 + userid);
|
|
break;
|
|
case XINPUT_DEVSUBTYPE_WHEEL:
|
|
SDL_snprintf(name, sizeof(name), "XInput Wheel #%u", 1 + userid);
|
|
break;
|
|
case XINPUT_DEVSUBTYPE_ARCADE_STICK:
|
|
SDL_snprintf(name, sizeof(name), "XInput ArcadeStick #%u", 1 + userid);
|
|
break;
|
|
case XINPUT_DEVSUBTYPE_FLIGHT_STICK:
|
|
SDL_snprintf(name, sizeof(name), "XInput FlightStick #%u", 1 + userid);
|
|
break;
|
|
case XINPUT_DEVSUBTYPE_DANCE_PAD:
|
|
SDL_snprintf(name, sizeof(name), "XInput DancePad #%u", 1 + userid);
|
|
break;
|
|
case XINPUT_DEVSUBTYPE_GUITAR:
|
|
case XINPUT_DEVSUBTYPE_GUITAR_ALTERNATE:
|
|
case XINPUT_DEVSUBTYPE_GUITAR_BASS:
|
|
SDL_snprintf(name, sizeof(name), "XInput Guitar #%u", 1 + userid);
|
|
break;
|
|
case XINPUT_DEVSUBTYPE_DRUM_KIT:
|
|
SDL_snprintf(name, sizeof(name), "XInput DrumKit #%u", 1 + userid);
|
|
break;
|
|
case XINPUT_DEVSUBTYPE_ARCADE_PAD:
|
|
SDL_snprintf(name, sizeof(name), "XInput ArcadePad #%u", 1 + userid);
|
|
break;
|
|
default:
|
|
SDL_snprintf(name, sizeof(name), "XInput Device #%u", 1 + userid);
|
|
break;
|
|
}
|
|
}
|
|
return SDL_strdup(name);
|
|
}
|
|
|
|
static void
|
|
AddXInputDevice(const Uint8 userid, BYTE SubType, JoyStick_DeviceData **pContext)
|
|
{
|
|
JoyStick_DeviceData *pPrevJoystick = NULL;
|
|
JoyStick_DeviceData *pNewJoystick = *pContext;
|
|
|
|
if (SDL_XInputUseOldJoystickMapping() && SubType != XINPUT_DEVSUBTYPE_GAMEPAD)
|
|
return;
|
|
|
|
if (SubType == XINPUT_DEVSUBTYPE_UNKNOWN)
|
|
return;
|
|
|
|
while (pNewJoystick) {
|
|
if (pNewJoystick->bXInputDevice && (pNewJoystick->XInputUserId == userid) && (pNewJoystick->SubType == SubType)) {
|
|
/* if we are replacing the front of the list then update it */
|
|
if (pNewJoystick == *pContext) {
|
|
*pContext = pNewJoystick->pNext;
|
|
} else if (pPrevJoystick) {
|
|
pPrevJoystick->pNext = pNewJoystick->pNext;
|
|
}
|
|
|
|
pNewJoystick->pNext = SYS_Joystick;
|
|
SYS_Joystick = pNewJoystick;
|
|
return; /* already in the list. */
|
|
}
|
|
|
|
pPrevJoystick = pNewJoystick;
|
|
pNewJoystick = pNewJoystick->pNext;
|
|
}
|
|
|
|
pNewJoystick = (JoyStick_DeviceData *)SDL_malloc(sizeof(JoyStick_DeviceData));
|
|
if (!pNewJoystick) {
|
|
return; /* better luck next time? */
|
|
}
|
|
SDL_zerop(pNewJoystick);
|
|
|
|
pNewJoystick->joystickname = GetXInputName(userid, SubType);
|
|
if (!pNewJoystick->joystickname) {
|
|
SDL_free(pNewJoystick);
|
|
return; /* better luck next time? */
|
|
}
|
|
|
|
pNewJoystick->bXInputDevice = SDL_TRUE;
|
|
if (SDL_XInputUseOldJoystickMapping()) {
|
|
SDL_zero(pNewJoystick->guid);
|
|
} else {
|
|
pNewJoystick->guid.data[0] = 'x';
|
|
pNewJoystick->guid.data[1] = 'i';
|
|
pNewJoystick->guid.data[2] = 'n';
|
|
pNewJoystick->guid.data[3] = 'p';
|
|
pNewJoystick->guid.data[4] = 'u';
|
|
pNewJoystick->guid.data[5] = 't';
|
|
pNewJoystick->guid.data[6] = SubType;
|
|
}
|
|
pNewJoystick->SubType = SubType;
|
|
pNewJoystick->XInputUserId = userid;
|
|
SDL_SYS_AddJoystickDevice(pNewJoystick);
|
|
}
|
|
|
|
void
|
|
SDL_XINPUT_JoystickDetect(JoyStick_DeviceData **pContext)
|
|
{
|
|
int iuserid;
|
|
|
|
if (!s_bXInputEnabled) {
|
|
return;
|
|
}
|
|
|
|
/* iterate in reverse, so these are in the final list in ascending numeric order. */
|
|
for (iuserid = XUSER_MAX_COUNT - 1; iuserid >= 0; iuserid--) {
|
|
const Uint8 userid = (Uint8)iuserid;
|
|
XINPUT_CAPABILITIES capabilities;
|
|
if (XINPUTGETCAPABILITIES(userid, XINPUT_FLAG_GAMEPAD, &capabilities) == ERROR_SUCCESS) {
|
|
AddXInputDevice(userid, capabilities.SubType, pContext);
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
SDL_XINPUT_JoystickOpen(SDL_Joystick * joystick, JoyStick_DeviceData *joystickdevice)
|
|
{
|
|
const Uint8 userId = joystickdevice->XInputUserId;
|
|
XINPUT_CAPABILITIES capabilities;
|
|
XINPUT_VIBRATION state;
|
|
|
|
SDL_assert(s_bXInputEnabled);
|
|
SDL_assert(XINPUTGETCAPABILITIES);
|
|
SDL_assert(XINPUTSETSTATE);
|
|
SDL_assert(userId < XUSER_MAX_COUNT);
|
|
|
|
joystick->hwdata->bXInputDevice = SDL_TRUE;
|
|
|
|
if (XINPUTGETCAPABILITIES(userId, XINPUT_FLAG_GAMEPAD, &capabilities) != ERROR_SUCCESS) {
|
|
SDL_free(joystick->hwdata);
|
|
joystick->hwdata = NULL;
|
|
return SDL_SetError("Failed to obtain XInput device capabilities. Device disconnected?");
|
|
}
|
|
SDL_zero(state);
|
|
joystick->hwdata->bXInputHaptic = (XINPUTSETSTATE(userId, &state) == ERROR_SUCCESS);
|
|
joystick->hwdata->userid = userId;
|
|
|
|
/* The XInput API has a hard coded button/axis mapping, so we just match it */
|
|
if (SDL_XInputUseOldJoystickMapping()) {
|
|
joystick->naxes = 6;
|
|
joystick->nbuttons = 15;
|
|
} else {
|
|
joystick->naxes = 6;
|
|
joystick->nbuttons = 11;
|
|
joystick->nhats = 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
UpdateXInputJoystickState_OLD(SDL_Joystick * joystick, XINPUT_STATE_EX *pXInputState)
|
|
{
|
|
static WORD s_XInputButtons[] = {
|
|
XINPUT_GAMEPAD_DPAD_UP, XINPUT_GAMEPAD_DPAD_DOWN, XINPUT_GAMEPAD_DPAD_LEFT, XINPUT_GAMEPAD_DPAD_RIGHT,
|
|
XINPUT_GAMEPAD_START, XINPUT_GAMEPAD_BACK, XINPUT_GAMEPAD_LEFT_THUMB, XINPUT_GAMEPAD_RIGHT_THUMB,
|
|
XINPUT_GAMEPAD_LEFT_SHOULDER, XINPUT_GAMEPAD_RIGHT_SHOULDER,
|
|
XINPUT_GAMEPAD_A, XINPUT_GAMEPAD_B, XINPUT_GAMEPAD_X, XINPUT_GAMEPAD_Y,
|
|
XINPUT_GAMEPAD_GUIDE
|
|
};
|
|
WORD wButtons = pXInputState->Gamepad.wButtons;
|
|
Uint8 button;
|
|
|
|
SDL_PrivateJoystickAxis(joystick, 0, (Sint16)pXInputState->Gamepad.sThumbLX);
|
|
SDL_PrivateJoystickAxis(joystick, 1, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbLY)));
|
|
SDL_PrivateJoystickAxis(joystick, 2, (Sint16)pXInputState->Gamepad.sThumbRX);
|
|
SDL_PrivateJoystickAxis(joystick, 3, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbRY)));
|
|
SDL_PrivateJoystickAxis(joystick, 4, (Sint16)(((int)pXInputState->Gamepad.bLeftTrigger * 65535 / 255) - 32768));
|
|
SDL_PrivateJoystickAxis(joystick, 5, (Sint16)(((int)pXInputState->Gamepad.bRightTrigger * 65535 / 255) - 32768));
|
|
|
|
for (button = 0; button < SDL_arraysize(s_XInputButtons); ++button) {
|
|
SDL_PrivateJoystickButton(joystick, button, (wButtons & s_XInputButtons[button]) ? SDL_PRESSED : SDL_RELEASED);
|
|
}
|
|
}
|
|
|
|
static void
|
|
UpdateXInputJoystickState(SDL_Joystick * joystick, XINPUT_STATE_EX *pXInputState)
|
|
{
|
|
static WORD s_XInputButtons[] = {
|
|
XINPUT_GAMEPAD_A, XINPUT_GAMEPAD_B, XINPUT_GAMEPAD_X, XINPUT_GAMEPAD_Y,
|
|
XINPUT_GAMEPAD_LEFT_SHOULDER, XINPUT_GAMEPAD_RIGHT_SHOULDER, XINPUT_GAMEPAD_BACK, XINPUT_GAMEPAD_START,
|
|
XINPUT_GAMEPAD_LEFT_THUMB, XINPUT_GAMEPAD_RIGHT_THUMB,
|
|
XINPUT_GAMEPAD_GUIDE
|
|
};
|
|
WORD wButtons = pXInputState->Gamepad.wButtons;
|
|
Uint8 button;
|
|
Uint8 hat = SDL_HAT_CENTERED;
|
|
|
|
SDL_PrivateJoystickAxis(joystick, 0, (Sint16)pXInputState->Gamepad.sThumbLX);
|
|
SDL_PrivateJoystickAxis(joystick, 1, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbLY)));
|
|
SDL_PrivateJoystickAxis(joystick, 2, (Sint16)(((int)pXInputState->Gamepad.bLeftTrigger * 65535 / 255) - 32768));
|
|
SDL_PrivateJoystickAxis(joystick, 3, (Sint16)pXInputState->Gamepad.sThumbRX);
|
|
SDL_PrivateJoystickAxis(joystick, 4, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbRY)));
|
|
SDL_PrivateJoystickAxis(joystick, 5, (Sint16)(((int)pXInputState->Gamepad.bRightTrigger * 65535 / 255) - 32768));
|
|
|
|
for (button = 0; button < SDL_arraysize(s_XInputButtons); ++button) {
|
|
SDL_PrivateJoystickButton(joystick, button, (wButtons & s_XInputButtons[button]) ? SDL_PRESSED : SDL_RELEASED);
|
|
}
|
|
|
|
if (wButtons & XINPUT_GAMEPAD_DPAD_UP) {
|
|
hat |= SDL_HAT_UP;
|
|
}
|
|
if (wButtons & XINPUT_GAMEPAD_DPAD_DOWN) {
|
|
hat |= SDL_HAT_DOWN;
|
|
}
|
|
if (wButtons & XINPUT_GAMEPAD_DPAD_LEFT) {
|
|
hat |= SDL_HAT_LEFT;
|
|
}
|
|
if (wButtons & XINPUT_GAMEPAD_DPAD_RIGHT) {
|
|
hat |= SDL_HAT_RIGHT;
|
|
}
|
|
SDL_PrivateJoystickHat(joystick, 0, hat);
|
|
}
|
|
|
|
void
|
|
SDL_XINPUT_JoystickUpdate(SDL_Joystick * joystick)
|
|
{
|
|
HRESULT result;
|
|
XINPUT_STATE_EX XInputState;
|
|
|
|
if (!XINPUTGETSTATE)
|
|
return;
|
|
|
|
result = XINPUTGETSTATE(joystick->hwdata->userid, &XInputState);
|
|
if (result == ERROR_DEVICE_NOT_CONNECTED) {
|
|
joystick->hwdata->send_remove_event = SDL_TRUE;
|
|
joystick->hwdata->removed = SDL_TRUE;
|
|
return;
|
|
}
|
|
|
|
/* only fire events if the data changed from last time */
|
|
if (XInputState.dwPacketNumber && XInputState.dwPacketNumber != joystick->hwdata->dwPacketNumber) {
|
|
if (SDL_XInputUseOldJoystickMapping()) {
|
|
UpdateXInputJoystickState_OLD(joystick, &XInputState);
|
|
} else {
|
|
UpdateXInputJoystickState(joystick, &XInputState);
|
|
}
|
|
joystick->hwdata->dwPacketNumber = XInputState.dwPacketNumber;
|
|
}
|
|
}
|
|
|
|
void
|
|
SDL_XINPUT_JoystickClose(SDL_Joystick * joystick)
|
|
{
|
|
}
|
|
|
|
void
|
|
SDL_XINPUT_JoystickQuit(void)
|
|
{
|
|
if (s_bXInputEnabled) {
|
|
WIN_UnloadXInputDLL();
|
|
}
|
|
}
|
|
|
|
SDL_bool
|
|
SDL_SYS_IsXInputGamepad_DeviceIndex(int device_index)
|
|
{
|
|
JoyStick_DeviceData *device = SYS_Joystick;
|
|
int index;
|
|
|
|
for (index = device_index; index > 0; index--)
|
|
device = device->pNext;
|
|
|
|
return (device->SubType == XINPUT_DEVSUBTYPE_GAMEPAD);
|
|
}
|
|
|
|
#else /* !SDL_JOYSTICK_XINPUT */
|
|
|
|
typedef struct JoyStick_DeviceData JoyStick_DeviceData;
|
|
|
|
SDL_bool SDL_XINPUT_Enabled(void)
|
|
{
|
|
return SDL_FALSE;
|
|
}
|
|
|
|
int
|
|
SDL_XINPUT_JoystickInit(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
SDL_XINPUT_JoystickDetect(JoyStick_DeviceData **pContext)
|
|
{
|
|
}
|
|
|
|
int
|
|
SDL_XINPUT_JoystickOpen(SDL_Joystick * joystick, JoyStick_DeviceData *joystickdevice)
|
|
{
|
|
return SDL_Unsupported();
|
|
}
|
|
|
|
void
|
|
SDL_XINPUT_JoystickUpdate(SDL_Joystick * joystick)
|
|
{
|
|
}
|
|
|
|
void
|
|
SDL_XINPUT_JoystickClose(SDL_Joystick * joystick)
|
|
{
|
|
}
|
|
|
|
void
|
|
SDL_XINPUT_JoystickQuit(void)
|
|
{
|
|
}
|
|
|
|
#endif /* SDL_JOYSTICK_XINPUT */
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|