| 10,86 → 10,6 |
|---|
| |
| extern uint32_t hw2d ; |
| |
| #if 0 |
| #define FUTEX_INIT 0 |
| #define FUTEX_DESTROY 1 |
| #define FUTEX_WAIT 2 |
| #define FUTEX_WAKE 3 |
| |
| int __fastcall mutex_init(mutex_t *mutex) |
| { |
| unsigned int handle; |
| |
| mutex->lock = 0; |
| |
| asm volatile( |
| "int $0x40\t" |
| :"=a"(handle) |
| :"a"(77),"b"(FUTEX_INIT),"c"(mutex)); |
| mutex->handle = handle; |
| |
| return handle; |
| }; |
| |
| int __fastcall mutex_destroy(mutex_t *mutex) |
| { |
| int retval; |
| |
| asm volatile( |
| "int $0x40\t" |
| :"=a"(retval) |
| :"a"(77),"b"(FUTEX_DESTROY),"c"(mutex->handle)); |
| |
| return retval; |
| }; |
| |
| #define exchange_acquire(ptr, new) \ |
| __atomic_exchange_4((ptr), (new), __ATOMIC_ACQUIRE) |
| |
| #define exchange_release(ptr, new) \ |
| __atomic_exchange_4((ptr), (new), __ATOMIC_RELEASE) |
| |
| void __fastcall mutex_lock(mutex_t *mutex) |
| { |
| int tmp; |
| |
| if( __sync_fetch_and_add(&mutex->lock, 1) == 0) |
| return; |
| |
| while (exchange_acquire (&mutex->lock, 2) != 0) |
| { |
| asm volatile( |
| "int $0x40\t" |
| :"=a"(tmp) |
| :"a"(77),"b"(FUTEX_WAIT), |
| "c"(mutex->handle),"d"(2),"S"(0)); |
| } |
| } |
| |
| int __fastcall mutex_trylock (mutex_t *mutex) |
| { |
| int zero = 0; |
| |
| return __atomic_compare_exchange_4(&mutex->lock, &zero, 1,0,__ATOMIC_ACQUIRE,__ATOMIC_RELAXED); |
| } |
| |
| void __fastcall mutex_unlock(mutex_t *mutex) |
| { |
| int prev; |
| |
| prev = exchange_release (&mutex->lock, 0); |
| |
| if (prev != 1) |
| { |
| asm volatile( |
| "int $0x40\t" |
| :"=a"(prev) |
| :"a"(77),"b"(FUTEX_WAKE), |
| "c"(mutex->handle),"d"(1)); |
| }; |
| }; |
| #endif |
| |
| int64_t _lseeki64(int fd, int64_t offset, int origin ) |
| { |
| int off = offset; |
| 100,10 → 20,6 |
|---|
| { |
| AVPacketList *q_pkt; |
| |
| /* duplicate the packet */ |
| // if (av_dup_packet(pkt) < 0) |
| // return -1; |
| |
| q_pkt = av_malloc(sizeof(AVPacketList)); |
| if (!q_pkt) |
| return -1; |