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ih264d: Small optimizations and experiments with multi-threading
Using the multi-threaded decoder doesn't seem to be worth it but at least we have a way to enable it now
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f04c7575d7
commit
fda5ec2697
4 changed files with 61 additions and 15 deletions
6
dependencies/ih264d/CMakeLists.txt
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6
dependencies/ih264d/CMakeLists.txt
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@ -183,4 +183,10 @@ endif()
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if(MSVC)
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set_property(TARGET ih264d PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
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# tune settings for slightly better performance
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target_compile_options(ih264d PRIVATE $<$<CONFIG:Release,RelWithDebInfo>:/Oi>) # enable intrinsic functions
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target_compile_options(ih264d PRIVATE $<$<CONFIG:Release,RelWithDebInfo>:/Ot>) # favor speed
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target_compile_options(ih264d PRIVATE "/GS-") # disable runtime checks
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endif()
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50
dependencies/ih264d/common/ithread.c
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50
dependencies/ih264d/common/ithread.c
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@ -85,28 +85,59 @@ UWORD32 ithread_get_mutex_lock_size(void)
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return sizeof(CRITICAL_SECTION);
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}
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struct _ithread_launch_param
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{
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void (*startFunc)(void* argument);
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void* argument;
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};
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DWORD WINAPI _ithread_WinThreadStartRoutine(LPVOID lpThreadParameter)
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{
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struct _ithread_launch_param* param = (struct _ithread_launch_param*)lpThreadParameter;
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typedef void *(*ThreadStartRoutineType)(void *);
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ThreadStartRoutineType pfnThreadRoutine = (ThreadStartRoutineType)param->startFunc;
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void* arg = param->argument;
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free(param);
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pfnThreadRoutine(arg);
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return 0;
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}
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WORD32 ithread_create(void* thread_handle, void* attribute, void* strt, void* argument)
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{
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//UNUSED(attribute);
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//return pthread_create((pthread_t*)thread_handle, NULL, (void* (*)(void*)) strt, argument);
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__debugbreak();
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UNUSED(attribute);
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struct _ithread_launch_param* param = malloc(sizeof(struct _ithread_launch_param));
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param->startFunc = (void (*)(void*))strt;
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param->argument = argument;
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HANDLE *handle = (HANDLE*)thread_handle;
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*handle = CreateThread(NULL, 0, _ithread_WinThreadStartRoutine, param, 0, NULL);
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if(*handle == NULL)
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{
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return -1;
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}
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return 0;
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}
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WORD32 ithread_join(void* thread_handle, void** val_ptr)
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{
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//UNUSED(val_ptr);
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//pthread_t* pthread_handle = (pthread_t*)thread_handle;
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//return pthread_join(*pthread_handle, NULL);
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__debugbreak();
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return 0;
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HANDLE *handle = (HANDLE*)thread_handle;
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DWORD result = WaitForSingleObject(*handle, INFINITE);
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if(result == WAIT_OBJECT_0)
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{
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CloseHandle(*handle);
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return 0;
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}
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else
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{
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return -1;
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}
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}
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WORD32 ithread_get_mutex_struct_size(void)
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{
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return sizeof(CRITICAL_SECTION);
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}
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WORD32 ithread_mutex_init(void* mutex)
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{
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InitializeCriticalSection((LPCRITICAL_SECTION)mutex);
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@ -153,7 +184,6 @@ UWORD32 ithread_get_sem_struct_size(void)
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//return(sizeof(sem_t));
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}
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WORD32 ithread_sem_init(void* sem, WORD32 pshared, UWORD32 value)
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{
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__debugbreak();
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@ -168,7 +198,6 @@ WORD32 ithread_sem_post(void* sem)
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//return sem_post((sem_t*)sem);
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}
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WORD32 ithread_sem_wait(void* sem)
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{
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__debugbreak();
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@ -176,7 +205,6 @@ WORD32 ithread_sem_wait(void* sem)
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//return sem_wait((sem_t*)sem);
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}
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WORD32 ithread_sem_destroy(void* sem)
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{
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__debugbreak();
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@ -79,10 +79,8 @@
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static inline int __builtin_clz(unsigned x)
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{
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unsigned long n;
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if (x == 0)
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return 32;
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_BitScanReverse(&n, x);
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return 31 - n;
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return n ^ 31;
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}
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static inline int __builtin_ctz(unsigned x) {
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