float* _glfwPlatformGetJoystickAxes(int joy, int* count)
{
JOYCAPS jc;
JOYINFOEX ji;
float* axes = _glfw.win32.joystick[joy].axes;
if (_glfw_joyGetDevCaps(joy, &jc, sizeof(JOYCAPS)) != JOYERR_NOERROR)
return NULL;
ji.dwSize = sizeof(JOYINFOEX);
ji.dwFlags = JOY_RETURNX | JOY_RETURNY | JOY_RETURNZ |
JOY_RETURNR | JOY_RETURNU | JOY_RETURNV;
if (_glfw_joyGetPosEx(joy, &ji) != JOYERR_NOERROR)
return NULL;
axes[(*count)++] = calcJoystickPos(ji.dwXpos, jc.wXmin, jc.wXmax);
axes[(*count)++] = -calcJoystickPos(ji.dwYpos, jc.wYmin, jc.wYmax);
if (jc.wCaps & JOYCAPS_HASZ)
axes[(*count)++] = calcJoystickPos(ji.dwZpos, jc.wZmin, jc.wZmax);
if (jc.wCaps & JOYCAPS_HASR)
axes[(*count)++] = calcJoystickPos(ji.dwRpos, jc.wRmin, jc.wRmax);
if (jc.wCaps & JOYCAPS_HASU)
axes[(*count)++] = calcJoystickPos(ji.dwUpos, jc.wUmin, jc.wUmax);
if (jc.wCaps & JOYCAPS_HASV)
axes[(*count)++] = -calcJoystickPos(ji.dwVpos, jc.wVmin, jc.wVmax);
return axes;
}
int _glfwPlatformGetJoystickButtons( int joy, unsigned char *buttons,
int numbuttons )
{
JOYCAPS jc;
JOYINFOEX ji;
int button;
// return 0;
// Is joystick present?
if( !_glfwJoystickPresent( joy ) )
{
return 0;
}
// Get joystick capabilities
_glfw_joyGetDevCaps( joy - GLFW_JOYSTICK_1, &jc, sizeof(JOYCAPS) );
// Get joystick state
ji.dwSize = sizeof( JOYINFOEX );
ji.dwFlags = JOY_RETURNBUTTONS;
_glfw_joyGetPosEx( joy - GLFW_JOYSTICK_1, &ji );
// Get states of all requested buttons
button = 0;
while( button < numbuttons && button < (int) jc.wNumButtons )
{
buttons[ button ] = (unsigned char)
(ji.dwButtons & (1UL << button) ? GLFW_PRESS : GLFW_RELEASE);
button ++;
}
return button;
}
int _glfwPlatformGetJoystickPos( int joy, float *pos, int numaxes )
{
JOYCAPS jc;
JOYINFOEX ji;
int axis;
// return 0;
// Is joystick present?
if( !_glfwJoystickPresent( joy ) )
{
return 0;
}
// Get joystick capabilities
_glfw_joyGetDevCaps( joy - GLFW_JOYSTICK_1, &jc, sizeof(JOYCAPS) );
// Get joystick state
ji.dwSize = sizeof( JOYINFOEX );
ji.dwFlags = JOY_RETURNX | JOY_RETURNY | JOY_RETURNZ |
JOY_RETURNR | JOY_RETURNU | JOY_RETURNV;
_glfw_joyGetPosEx( joy - GLFW_JOYSTICK_1, &ji );
// Get position values for all axes
axis = 0;
if( axis < numaxes )
{
pos[ axis++ ] = _glfwCalcJoystickPos( ji.dwXpos, jc.wXmin,
jc.wXmax );
}
if( axis < numaxes )
{
pos[ axis++ ] = -_glfwCalcJoystickPos( ji.dwYpos, jc.wYmin,
jc.wYmax );
}
if( axis < numaxes && jc.wCaps & JOYCAPS_HASZ )
{
pos[ axis++ ] = _glfwCalcJoystickPos( ji.dwZpos, jc.wZmin,
jc.wZmax );
}
if( axis < numaxes && jc.wCaps & JOYCAPS_HASR )
{
pos[ axis++ ] = _glfwCalcJoystickPos( ji.dwRpos, jc.wRmin,
jc.wRmax );
}
if( axis < numaxes && jc.wCaps & JOYCAPS_HASU )
{
pos[ axis++ ] = _glfwCalcJoystickPos( ji.dwUpos, jc.wUmin,
jc.wUmax );
}
if( axis < numaxes && jc.wCaps & JOYCAPS_HASV )
{
pos[ axis++ ] = -_glfwCalcJoystickPos( ji.dwVpos, jc.wVmin,
jc.wVmax );
}
// Return number of returned axes
return axis;
}
int _glfwPlatformGetJoystickButtons(int joy, unsigned char* buttons,
int numbuttons)
{
JOYCAPS jc;
JOYINFOEX ji;
int button, hats;
// Bit fields of button presses for each direction, including nil
const int directions[9] = { 1, 3, 2, 6, 4, 12, 8, 9, 0 };
if (!isJoystickPresent(joy))
return 0;
// Get joystick capabilities
_glfw_joyGetDevCaps(joy - GLFW_JOYSTICK_1, &jc, sizeof(JOYCAPS));
// Get joystick state
ji.dwSize = sizeof(JOYINFOEX);
ji.dwFlags = JOY_RETURNBUTTONS | JOY_RETURNPOV;
_glfw_joyGetPosEx(joy - GLFW_JOYSTICK_1, &ji);
// Get states of all requested buttons
for (button = 0; button < numbuttons && button < (int) jc.wNumButtons; button++)
{
buttons[button] = (unsigned char)
(ji.dwButtons & (1UL << button) ? GLFW_PRESS : GLFW_RELEASE);
}
// Virtual buttons - Inject data from hats
// Each hat is exposed as 4 buttons which exposes 8 directions with
// concurrent button presses
// NOTE: this API exposes only one hat
hats = (jc.wCaps & JOYCAPS_HASPOV) && (jc.wCaps & JOYCAPS_POV4DIR) ? 1 : 0;
if (hats > 0)
{
int j, value = ji.dwPOV / 100 / 45;
if (value < 0 || value > 8)
value = 8;
for (j = 0; j < 4 && button < numbuttons; j++)
{
if (directions[value] & (1 << j))
buttons[button] = GLFW_PRESS;
else
buttons[button] = GLFW_RELEASE;
button++;
}
}
return button;
}
unsigned char* _glfwPlatformGetJoystickButtons(int joy, int* count)
{
JOYCAPS jc;
JOYINFOEX ji;
unsigned char* buttons = _glfw.win32.joystick[joy].buttons;
if (_glfw_joyGetDevCaps(joy, &jc, sizeof(JOYCAPS)) != JOYERR_NOERROR)
return NULL;
ji.dwSize = sizeof(JOYINFOEX);
ji.dwFlags = JOY_RETURNBUTTONS | JOY_RETURNPOV;
if (_glfw_joyGetPosEx(joy, &ji) != JOYERR_NOERROR)
return NULL;
while (*count < jc.wNumButtons)
{
buttons[*count] = (unsigned char)
(ji.dwButtons & (1UL << *count) ? GLFW_PRESS : GLFW_RELEASE);
(*count)++;
}
// Virtual buttons - Inject data from hats
// Each hat is exposed as 4 buttons which exposes 8 directions with
// concurrent button presses
// NOTE: this API exposes only one hat
if ((jc.wCaps & JOYCAPS_HASPOV) && (jc.wCaps & JOYCAPS_POV4DIR))
{
int i, value = ji.dwPOV / 100 / 45;
// Bit fields of button presses for each direction, including nil
const int directions[9] = { 1, 3, 2, 6, 4, 12, 8, 9, 0 };
if (value < 0 || value > 8)
value = 8;
for (i = 0; i < 4; i++)
{
if (directions[value] & (1 << i))
buttons[(*count)++] = GLFW_PRESS;
else
buttons[(*count)++] = GLFW_RELEASE;
}
}
return buttons;
}
int _glfwPlatformGetJoystickAxes(int joy, float* axes, int numaxes)
{
JOYCAPS jc;
JOYINFOEX ji;
int axis;
if (!isJoystickPresent(joy))
return 0;
// Get joystick capabilities
_glfw_joyGetDevCaps(joy - GLFW_JOYSTICK_1, &jc, sizeof(JOYCAPS));
// Get joystick state
ji.dwSize = sizeof(JOYINFOEX);
ji.dwFlags = JOY_RETURNX | JOY_RETURNY | JOY_RETURNZ |
JOY_RETURNR | JOY_RETURNU | JOY_RETURNV;
_glfw_joyGetPosEx(joy - GLFW_JOYSTICK_1, &ji);
// Get position values for all axes
axis = 0;
if (axis < numaxes)
axes[axis++] = calcJoystickPos(ji.dwXpos, jc.wXmin, jc.wXmax);
if (axis < numaxes)
axes[axis++] = -calcJoystickPos(ji.dwYpos, jc.wYmin, jc.wYmax);
if (axis < numaxes && jc.wCaps & JOYCAPS_HASZ)
axes[axis++] = calcJoystickPos(ji.dwZpos, jc.wZmin, jc.wZmax);
if (axis < numaxes && jc.wCaps & JOYCAPS_HASR)
axes[axis++] = calcJoystickPos(ji.dwRpos, jc.wRmin, jc.wRmax);
if (axis < numaxes && jc.wCaps & JOYCAPS_HASU)
axes[axis++] = calcJoystickPos(ji.dwUpos, jc.wUmin, jc.wUmax);
if (axis < numaxes && jc.wCaps & JOYCAPS_HASV)
axes[axis++] = -calcJoystickPos(ji.dwVpos, jc.wVmin, jc.wVmax);
return axis;
}
