ugly incomplete hack to put the rendering into another thread so we don't have to wait for the flip

1 files changed, 78 insertions, 0 deletions

diff --git a/src/base/tl/threading.h b/src/base/tl/threading.h
new file mode 100644
index 00000000..66751ec4
--- /dev/null
+++ b/src/base/tl/threading.h
@@ -0,0 +1,78 @@
+
+#pragma once
+
+#include "../system.h"
+
+inline unsigned atomic_inc(volatile unsigned *pValue)
+{
+	return __sync_fetch_and_add(pValue, 1);
+}
+
+inline unsigned atomic_dec(volatile unsigned *pValue)
+{
+	return __sync_fetch_and_add(pValue, -1);
+}
+
+inline unsigned atomic_compswap(volatile unsigned *pValue, unsigned comperand, unsigned value)
+{
+	return __sync_val_compare_and_swap(pValue, comperand, value);
+}
+
+inline void sync_barrier()
+{
+	__sync_synchronize();
+}
+
+#include <semaphore.h>
+typedef sem_t SEMAPHORE;
+inline void semaphore_init(SEMAPHORE *sem) { sem_init(sem, 0, 0); }
+inline void semaphore_wait(SEMAPHORE *sem) { sem_wait(sem); }
+inline void semaphore_signal(SEMAPHORE *sem) { sem_post(sem); }
+inline void semaphore_destroy(SEMAPHORE *sem) { sem_destroy(sem); }
+
+class semaphore
+{
+	SEMAPHORE sem;
+public:
+	semaphore() { semaphore_init(&sem); }
+	~semaphore() { semaphore_destroy(&sem); }
+	void wait() { semaphore_wait(&sem); }
+	void signal() { semaphore_signal(&sem); }
+};
+
+class lock
+{
+	friend class scope_lock;
+
+	LOCK var;
+
+	void take() { lock_wait(var); }
+	void release() { lock_release(var); }
+
+public:
+	lock()
+	{
+		var = lock_create();
+	}
+
+	~lock()
+	{
+		lock_destroy(var);
+	}
+};
+
+class scope_lock
+{
+	lock *var;
+public:
+	scope_lock(lock *l)
+	{
+		var = l;
+		var->take();
+	}
+
+	~scope_lock()
+	{
+		var->release();
+	}
+};