1GL_ARB_sync 2http://www.opengl.org/registry/specs/ARB/sync.txt 3GL_ARB_sync 4 GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001 5 GL_MAX_SERVER_WAIT_TIMEOUT 0x9111 6 GL_OBJECT_TYPE 0x9112 7 GL_SYNC_CONDITION 0x9113 8 GL_SYNC_STATUS 0x9114 9 GL_SYNC_FLAGS 0x9115 10 GL_SYNC_FENCE 0x9116 11 GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117 12 GL_UNSIGNALED 0x9118 13 GL_SIGNALED 0x9119 14 GL_ALREADY_SIGNALED 0x911A 15 GL_TIMEOUT_EXPIRED 0x911B 16 GL_CONDITION_SATISFIED 0x911C 17 GL_WAIT_FAILED 0x911D 18 GL_TIMEOUT_IGNORED 0xFFFFFFFFFFFFFFFF 19 GLenum glClientWaitSync (GLsync GLsync,GLbitfield flags,GLuint64 timeout) 20 void glDeleteSync (GLsync GLsync) 21 GLsync glFenceSync (GLenum condition,GLbitfield flags) 22 void glGetInteger64v (GLenum pname, GLint64* params) 23 void glGetSynciv (GLsync GLsync,GLenum pname,GLsizei bufSize,GLsizei* length, GLint *values) 24 GLboolean glIsSync (GLsync GLsync) 25 void glWaitSync (GLsync GLsync,GLbitfield flags,GLuint64 timeout) 26