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This commit is contained in:
Camilla Berglund 2012-01-29 15:30:01 +01:00
parent 2935652f48
commit e05f0c0f53
1 changed files with 223 additions and 183 deletions
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148
src/cocoa_joystick.m
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@ -47,7 +47,8 @@
// Joystick element information
//------------------------------------------------------------------------
typedef struct {
typedef struct
{
IOHIDElementCookie Cookie;
long Value;
@ -57,14 +58,16 @@ typedef struct {
long MinReport;
long MaxReport;
} joystick_element_t;
} _glfwJoystickElement;
//------------------------------------------------------------------------
// Joystick information & state
//------------------------------------------------------------------------
typedef struct {
typedef struct
{
int Present;
char Product[256];
@ -77,14 +80,20 @@ typedef struct {
CFMutableArrayRef Axes;
CFMutableArrayRef Buttons;
CFMutableArrayRef Hats;
} joystick_t;
joystick_t _glfwJoysticks[GLFW_JOYSTICK_LAST + 1];
} _glfwJoystick;
_glfwJoystick _glfwJoysticks[GLFW_JOYSTICK_LAST + 1];
void GetElementsCFArrayHandler(const void* value, void* parameter);
static void JoystickAddElemet(joystick_t * joystick, CFTypeRef refElement)
//========================================================================
// Adds an element to the specified joystick
//========================================================================
static void addJoystickElement(_glfwJoystick* joystick, CFTypeRef refElement)
{
long elementType, usagePage, usage;
CFTypeRef refElementType, refUsagePage, refUsage;
@ -106,6 +115,7 @@ static void JoystickAddElemet(joystick_t * joystick, CFTypeRef refElement)
switch (usagePage) /* only interested in kHIDPage_GenericDesktop and kHIDPage_Button */
{
case kHIDPage_GenericDesktop:
{
switch (usage)
{
case kHIDUsage_GD_X:
@ -125,7 +135,10 @@ static void JoystickAddElemet(joystick_t * joystick, CFTypeRef refElement)
elementsArray = joystick->Hats;
break;
}
break;
}
case kHIDPage_Button:
joystick->NumButtons++;
elementsArray = joystick->Buttons;
@ -139,7 +152,7 @@ static void JoystickAddElemet(joystick_t * joystick, CFTypeRef refElement)
long number;
CFTypeRef refType;
joystick_element_t * element = (joystick_element_t *) malloc(sizeof(joystick_element_t));
_glfwJoystickElement* element = (_glfwJoystickElement*) malloc(sizeof(_glfwJoystickElement));
CFArrayAppendValue(elementsArray, element);
@ -167,25 +180,33 @@ static void JoystickAddElemet(joystick_t * joystick, CFTypeRef refElement)
CFRange range = {0, CFArrayGetCount (refElementTop)};
CFArrayApplyFunction(refElementTop, range, GetElementsCFArrayHandler, joystick);
}
}
}
}
}
}
}
//========================================================================
// Adds an element to the specified joystick
//========================================================================
void GetElementsCFArrayHandler(const void* value, void* parameter)
{
if (CFGetTypeID(value) == CFDictionaryGetTypeID())
JoystickAddElemet((joystick_t *) parameter, (CFTypeRef) value);
addJoystickElement((_glfwJoystick*) parameter, (CFTypeRef) value);
}
static long GetElementValue(joystick_t * joystick, joystick_element_t * element)
//========================================================================
// Returns the value of the specified element of the specified joystick
//========================================================================
static long getElementValue(_glfwJoystick* joystick, _glfwJoystickElement* element)
{
IOReturn result = kIOReturnSuccess;
IOHIDEventStruct hidEvent;
hidEvent.value = 0;
if (NULL != joystick && NULL != element && NULL != joystick->Interface)
if (joystick && element && joystick->Interface)
{
result = (*(joystick->Interface))->getElementValue(joystick->Interface, element->Cookie, &hidEvent);
if (kIOReturnSuccess == result)
@ -203,7 +224,11 @@ static long GetElementValue(joystick_t * joystick, joystick_element_t * element)
}
static void RemoveJoystick(joystick_t * joystick)
//========================================================================
// Removes the specified joystick
//========================================================================
static void removeJoystick(_glfwJoystick* joystick)
{
if (joystick->Present)
{
@ -211,8 +236,8 @@ static void RemoveJoystick(joystick_t * joystick)
for (int i = 0; i < joystick->NumAxes; i++)
{
joystick_element_t * axes =
(joystick_element_t *) CFArrayGetValueAtIndex(joystick->Axes, i);
_glfwJoystickElement* axes =
(_glfwJoystickElement*) CFArrayGetValueAtIndex(joystick->Axes, i);
free(axes);
}
CFArrayRemoveAllValues(joystick->Axes);
@ -220,8 +245,8 @@ static void RemoveJoystick(joystick_t * joystick)
for (int i = 0; i < joystick->NumButtons; i++)
{
joystick_element_t * button =
(joystick_element_t *) CFArrayGetValueAtIndex(joystick->Buttons, i);
_glfwJoystickElement* button =
(_glfwJoystickElement*) CFArrayGetValueAtIndex(joystick->Buttons, i);
free(button);
}
CFArrayRemoveAllValues(joystick->Buttons);
@ -229,8 +254,8 @@ static void RemoveJoystick(joystick_t * joystick)
for (int i = 0; i < joystick->NumHats; i++)
{
joystick_element_t * hat =
(joystick_element_t *) CFArrayGetValueAtIndex(joystick->Hats, i);
_glfwJoystickElement* hat =
(_glfwJoystickElement*) CFArrayGetValueAtIndex(joystick->Hats, i);
free(hat);
}
CFArrayRemoveAllValues(joystick->Hats);
@ -244,32 +269,40 @@ static void RemoveJoystick(joystick_t * joystick)
}
static void RemovalCallback(void * target, IOReturn result, void * refcon, void * sender)
//========================================================================
// Callback for user-initiated joystick removal
//========================================================================
static void removalCallback(void* target, IOReturn result, void* refcon, void* sender)
{
RemoveJoystick((joystick_t *) refcon);
removeJoystick((_glfwJoystick*) refcon);
}
static void PollJoystickEvents(void)
//========================================================================
// Polls for joystick events and updates GFLW state
//========================================================================
static void pollJoystickEvents(void)
{
for (int i = 0; i < GLFW_JOYSTICK_LAST + 1; i++)
{
joystick_t * joystick = &_glfwJoysticks[i];
_glfwJoystick* joystick = &_glfwJoysticks[i];
if (joystick->Present)
{
for (CFIndex i = 0; i < joystick->NumButtons; i++)
{
joystick_element_t * button =
(joystick_element_t *) CFArrayGetValueAtIndex(joystick->Buttons, i);
button->Value = GetElementValue(joystick, button);
_glfwJoystickElement* button =
(_glfwJoystickElement*) CFArrayGetValueAtIndex(joystick->Buttons, i);
button->Value = getElementValue(joystick, button);
}
for (CFIndex i = 0; i < joystick->NumAxes; i++)
{
joystick_element_t * axes =
(joystick_element_t *) CFArrayGetValueAtIndex(joystick->Axes, i);
axes->Value = GetElementValue(joystick, axes);
_glfwJoystickElement* axes =
(_glfwJoystickElement*) CFArrayGetValueAtIndex(joystick->Axes, i);
axes->Value = getElementValue(joystick, axes);
}
}
}
@ -317,14 +350,13 @@ void _glfwInitJoysticks(void)
long usagePage, usage;
result = IORegistryEntryCreateCFProperties(
ioHIDDeviceObject,
result = IORegistryEntryCreateCFProperties(ioHIDDeviceObject,
&hidProperties,
kCFAllocatorDefault,
kNilOptions);
if (result != kIOReturnSuccess) continue;
if (result != kIOReturnSuccess)
continue;
/* Check device type */
refCF = CFDictionaryGetValue(hidProperties, CFSTR(kIOHIDPrimaryUsagePageKey));
@ -344,14 +376,11 @@ void _glfwInitJoysticks(void)
continue;
}
joystick_t * joystick = &_glfwJoysticks[deviceCounter];
_glfwJoystick* joystick = &_glfwJoysticks[deviceCounter];
joystick->Present = GL_TRUE;
result = IOCreatePlugInInterfaceForService(
ioHIDDeviceObject,
result = IOCreatePlugInInterfaceForService(ioHIDDeviceObject,
kIOHIDDeviceUserClientTypeID,
kIOCFPlugInInterfaceID,
&ppPlugInInterface,
@ -365,18 +394,26 @@ void _glfwInitJoysticks(void)
CFUUIDGetUUIDBytes(kIOHIDDeviceInterfaceID),
(void *) &(joystick->Interface));
if (S_OK != plugInResult)
if (plugInResult != S_OK)
exit(EXIT_FAILURE);
(*ppPlugInInterface)->Release(ppPlugInInterface);
(*(joystick->Interface))->open(joystick->Interface, 0);
(*(joystick->Interface))->setRemovalCallback(joystick->Interface, RemovalCallback, joystick, joystick);
(*(joystick->Interface))->setRemovalCallback(joystick->Interface,
removalCallback,
joystick,
joystick);
/* Get product string */
refCF = CFDictionaryGetValue(hidProperties, CFSTR(kIOHIDProductKey));
if (refCF)
CFStringGetCString(refCF, (char *) &(joystick->Product), 256, CFStringGetSystemEncoding());
{
CFStringGetCString(refCF,
(char*) &(joystick->Product),
256,
CFStringGetSystemEncoding());
}
joystick->NumAxes = 0;
joystick->NumButtons = 0;
@ -385,12 +422,16 @@ void _glfwInitJoysticks(void)
joystick->Buttons = CFArrayCreateMutable(NULL, 0, NULL);
joystick->Hats = CFArrayCreateMutable(NULL, 0, NULL);
CFTypeRef refTopElement = CFDictionaryGetValue(hidProperties, CFSTR(kIOHIDElementKey));
CFTypeRef refTopElement = CFDictionaryGetValue(hidProperties,
CFSTR(kIOHIDElementKey));
CFTypeID type = CFGetTypeID(refTopElement);
if (type == CFArrayGetTypeID())
{
CFRange range = { 0, CFArrayGetCount(refTopElement) };
CFArrayApplyFunction(refTopElement, range, GetElementsCFArrayHandler, (void *) joystick);
CFArrayApplyFunction(refTopElement,
range,
GetElementsCFArrayHandler,
(void*) joystick);
}
deviceCounter++;
@ -406,8 +447,8 @@ void _glfwTerminateJoysticks(void)
{
for (int i = 0; i < GLFW_JOYSTICK_LAST + 1; i++)
{
joystick_t * joystick = &_glfwJoysticks[i];
RemoveJoystick(joystick);
_glfwJoystick* joystick = &_glfwJoysticks[i];
removeJoystick(joystick);
}
}
@ -456,7 +497,7 @@ int _glfwPlatformGetJoystickPos(int joy, float *pos, int numaxes)
if (joy < GLFW_JOYSTICK_1 || joy > GLFW_JOYSTICK_LAST)
return 0;
joystick_t joystick = _glfwJoysticks[joy];
_glfwJoystick joystick = _glfwJoysticks[joy];
if (!joystick.Present)
{
@ -467,12 +508,12 @@ int _glfwPlatformGetJoystickPos(int joy, float *pos, int numaxes)
numaxes = numaxes < joystick.NumAxes ? numaxes : joystick.NumAxes;
// Update joystick state
PollJoystickEvents();
pollJoystickEvents();
for (int i = 0; i < numaxes; i++)
{
joystick_element_t * axes =
(joystick_element_t *) CFArrayGetValueAtIndex(joystick.Axes, i);
_glfwJoystickElement* axes =
(_glfwJoystickElement*) CFArrayGetValueAtIndex(joystick.Axes, i);
long readScale = axes->MaxReport - axes->MinReport;
@ -501,7 +542,7 @@ int _glfwPlatformGetJoystickButtons(int joy, unsigned char *buttons,
if (joy < GLFW_JOYSTICK_1 || joy > GLFW_JOYSTICK_LAST)
return 0;
joystick_t joystick = _glfwJoysticks[joy];
_glfwJoystick joystick = _glfwJoysticks[joy];
if (!joystick.Present)
{
@ -512,12 +553,11 @@ int _glfwPlatformGetJoystickButtons(int joy, unsigned char *buttons,
numbuttons = numbuttons < joystick.NumButtons ? numbuttons : joystick.NumButtons;
// Update joystick state
PollJoystickEvents();
pollJoystickEvents();
for (int i = 0; i < numbuttons; i++)
{
joystick_element_t * button = (joystick_element_t *) CFArrayGetValueAtIndex(joystick.Buttons, i);
_glfwJoystickElement* button = (_glfwJoystickElement*) CFArrayGetValueAtIndex(joystick.Buttons, i);
buttons[i] = button->Value ? GLFW_PRESS : GLFW_RELEASE;
}