-#ifndef _REF_COUNTED_GL_SYNC_H
-#define _REF_COUNTED_GL_SYNC_H 1
-
-// A wrapper around GLsync (OpenGL fences) that is automatically refcounted.
-// Useful since we sometimes want to use the same fence two entirely different
-// places. (We could set two fences at the same time, but they are not an
-// unlimited hardware resource, so it would be a bit wasteful.)
-
-#include <epoxy/gl.h>
-#include <memory>
-#include <mutex>
-
-typedef std::shared_ptr<__GLsync> RefCountedGLsyncBase;
-
-class RefCountedGLsync : public RefCountedGLsyncBase {
-public:
- RefCountedGLsync() {}
-
- RefCountedGLsync(GLenum condition, GLbitfield flags)
- : RefCountedGLsyncBase(locked_glFenceSync(condition, flags), glDeleteSync) {}
-
-private:
- // These are to work around apitrace bug #446.
- static GLsync locked_glFenceSync(GLenum condition, GLbitfield flags)
- {
- std::lock_guard<std::mutex> lock(fence_lock);
- return glFenceSync(condition, flags);
- }
-
- static void locked_glDeleteSync(GLsync sync)
- {
- std::lock_guard<std::mutex> lock(fence_lock);
- glDeleteSync(sync);
- }
-
- static std::mutex fence_lock;
-};
-
-#endif // !defined(_REF_COUNTED_GL_SYNC_H)