pcsx2/plugins/LilyPad/KeyboardQueue.cpp

67 lines
1.6 KiB
C++

// This is undoubtedly completely unnecessary.
#include "KeyboardQueue.h"
static int numQueuedEvents = 0;
static keyEvent queuedEvents[20];
// What MS calls a single process Mutex. Faster, supposedly.
// More importantly, can be abbreviated, amusingly, as cSection.
static CRITICAL_SECTION cSection;
static int csInitialized = 0;
void QueueKeyEvent(int key, int event) {
if (!csInitialized) {
csInitialized = 1;
InitializeCriticalSection(&cSection);
}
EnterCriticalSection(&cSection);
if (numQueuedEvents >= 15) {
// Generally shouldn't happen.
for (int i=0; i<15; i++) {
queuedEvents[i] = queuedEvents[i+5];
}
numQueuedEvents = 15;
}
int index = numQueuedEvents;
// Move escape to top of queue. May do something
// with shift/ctrl/alt and F-keys, later.
if (event == KEYPRESS && key == VK_ESCAPE) {
while (index) {
queuedEvents[index-1] = queuedEvents[index];
index--;
}
}
queuedEvents[index].key = key;
queuedEvents[index].event = event;
numQueuedEvents ++;
LeaveCriticalSection(&cSection);
}
int GetQueuedKeyEvent(keyEvent *event) {
int out = 0;
if (numQueuedEvents) {
EnterCriticalSection(&cSection);
// Shouldn't be 0, but just in case...
if (numQueuedEvents) {
*event = queuedEvents[0];
numQueuedEvents--;
out = 1;
for (int i=0; i<numQueuedEvents; i++) {
queuedEvents[i] = queuedEvents[i+1];
}
}
LeaveCriticalSection(&cSection);
}
return out;
}
void ClearKeyQueue() {
if (numQueuedEvents) {
numQueuedEvents = 0;
}
if (csInitialized) {
DeleteCriticalSection(&cSection);
csInitialized = 0;
}
}