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Fixed bug 2076 - OpenGL doesn't work with --disable-threads
stepik-777

Thread local storage is used to store current window and current opengl context. OpenGL worked before this changeset: 7596 (45e5c263c096)
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slouken committed Sep 5, 2013
1 parent 2afbd77 commit 4b942c5a070aab6ebe3296ca6c9ea511169280bd
Showing with 7 additions and 0 deletions.
  1. +1 −0 src/thread/SDL_systhread.h
  2. +4 −0 src/thread/SDL_thread.c
  3. +2 −0 src/thread/SDL_thread_c.h
@@ -26,6 +26,7 @@
#define _SDL_systhread_h

#include "SDL_thread.h"
#include "SDL_thread_c.h"

/* This function creates a thread, passing args to SDL_RunThread(),
saves a system-dependent thread id in thread->id, and returns 0
@@ -125,6 +125,7 @@ SDL_Generic_GetTLSData()
SDL_TLSEntry *entry;
SDL_TLSData *storage = NULL;

#if !SDL_THREADS_DISABLED
if (!SDL_generic_TLS_mutex) {
static SDL_SpinLock tls_lock;
SDL_AtomicLock(&tls_lock);
@@ -139,6 +140,7 @@ SDL_Generic_GetTLSData()
}
SDL_AtomicUnlock(&tls_lock);
}
#endif /* SDL_THREADS_DISABLED */

SDL_MemoryBarrierAcquire();
SDL_LockMutex(SDL_generic_TLS_mutex);
@@ -148,7 +150,9 @@ SDL_Generic_GetTLSData()
break;
}
}
#if !SDL_THREADS_DISABLED
SDL_UnlockMutex(SDL_generic_TLS_mutex);
#endif

return storage;
}
@@ -23,6 +23,8 @@
#ifndef _SDL_thread_c_h
#define _SDL_thread_c_h

#include "SDL_thread.h"

/* Need the definitions of SYS_ThreadHandle */
#if SDL_THREADS_DISABLED
#include "generic/SDL_systhread_c.h"

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