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Only poll requested joystick on OS X

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This commit is contained in:
Camilla Berglund 2015-12-13 15:14:14 +01:00
parent 45efb935c5
commit 12871db0f9
1 changed files with 52 additions and 61 deletions
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113
src/cocoa_joystick.m
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@ -193,65 +193,61 @@ static void removeJoystick(_GLFWjoydeviceNS* joystick)
// Polls for joystick events and updates GLFW state
//
static void pollJoystickEvents(void)
static GLFWbool pollJoystickEvents(_GLFWjoydeviceNS* joystick)
{
int joy;
CFIndex i;
int buttonIndex = 0;
for (joy = 0; joy <= GLFW_JOYSTICK_LAST; joy++)
if (!joystick->present)
return GLFW_FALSE;
for (i = 0; i < CFArrayGetCount(joystick->buttonElements); i++)
{
CFIndex i;
int buttonIndex = 0;
_GLFWjoydeviceNS* joystick = _glfw.ns_js.devices + joy;
_GLFWjoyelementNS* button = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(joystick->buttonElements, i);
if (!joystick->present)
continue;
if (getElementValue(joystick, button))
joystick->buttons[buttonIndex++] = GLFW_PRESS;
else
joystick->buttons[buttonIndex++] = GLFW_RELEASE;
}
for (i = 0; i < CFArrayGetCount(joystick->buttonElements); i++)
for (i = 0; i < CFArrayGetCount(joystick->axisElements); i++)
{
_GLFWjoyelementNS* axis = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(joystick->axisElements, i);
long value = getElementValue(joystick, axis);
long readScale = axis->maxReport - axis->minReport;
if (readScale == 0)
joystick->axes[i] = value;
else
joystick->axes[i] = (2.f * (value - axis->minReport) / readScale) - 1.f;
}
for (i = 0; i < CFArrayGetCount(joystick->hatElements); i++)
{
_GLFWjoyelementNS* hat = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(joystick->hatElements, i);
// Bit fields of button presses for each direction, including nil
const int directions[9] = { 1, 3, 2, 6, 4, 12, 8, 9, 0 };
long j, value = getElementValue(joystick, hat);
if (value < 0 || value > 8)
value = 8;
for (j = 0; j < 4; j++)
{
_GLFWjoyelementNS* button = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(joystick->buttonElements, i);
if (getElementValue(joystick, button))
if (directions[value] & (1 << j))
joystick->buttons[buttonIndex++] = GLFW_PRESS;
else
joystick->buttons[buttonIndex++] = GLFW_RELEASE;
}
for (i = 0; i < CFArrayGetCount(joystick->axisElements); i++)
{
_GLFWjoyelementNS* axis = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(joystick->axisElements, i);
long value = getElementValue(joystick, axis);
long readScale = axis->maxReport - axis->minReport;
if (readScale == 0)
joystick->axes[i] = value;
else
joystick->axes[i] = (2.f * (value - axis->minReport) / readScale) - 1.f;
}
for (i = 0; i < CFArrayGetCount(joystick->hatElements); i++)
{
_GLFWjoyelementNS* hat = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(joystick->hatElements, i);
// Bit fields of button presses for each direction, including nil
const int directions[9] = { 1, 3, 2, 6, 4, 12, 8, 9, 0 };
long j, value = getElementValue(joystick, hat);
if (value < 0 || value > 8)
value = 8;
for (j = 0; j < 4; j++)
{
if (directions[value] & (1 << j))
joystick->buttons[buttonIndex++] = GLFW_PRESS;
else
joystick->buttons[buttonIndex++] = GLFW_RELEASE;
}
}
}
return GLFW_TRUE;
}
// Callback for user-initiated joystick addition
@ -466,18 +462,14 @@ void _glfwTerminateJoysticksNS(void)
int _glfwPlatformJoystickPresent(int joy)
{
pollJoystickEvents();
return _glfw.ns_js.devices[joy].present;
_GLFWjoydeviceNS* joystick = _glfw.ns_js.devices + joy;
return pollJoystickEvents(joystick);
}
const float* _glfwPlatformGetJoystickAxes(int joy, int* count)
{
_GLFWjoydeviceNS* joystick = _glfw.ns_js.devices + joy;
pollJoystickEvents();
if (!joystick->present)
if (!pollJoystickEvents(joystick))
return NULL;
*count = (int) CFArrayGetCount(joystick->axisElements);
@ -487,10 +479,7 @@ const float* _glfwPlatformGetJoystickAxes(int joy, int* count)
const unsigned char* _glfwPlatformGetJoystickButtons(int joy, int* count)
{
_GLFWjoydeviceNS* joystick = _glfw.ns_js.devices + joy;
pollJoystickEvents();
if (!joystick->present)
if (!pollJoystickEvents(joystick))
return NULL;
*count = (int) CFArrayGetCount(joystick->buttonElements) +
@ -500,8 +489,10 @@ const unsigned char* _glfwPlatformGetJoystickButtons(int joy, int* count)
const char* _glfwPlatformGetJoystickName(int joy)
{
pollJoystickEvents();
_GLFWjoydeviceNS* joystick = _glfw.ns_js.devices + joy;
if (!pollJoystickEvents(joystick))
return NULL;
return _glfw.ns_js.devices[joy].name;
return joystick->name;
}