diff options
Diffstat (limited to 'chromium/third_party/glslang/src/glslang/OSDependent/Unix/ossource.cpp')
| -rw-r--r-- | chromium/third_party/glslang/src/glslang/OSDependent/Unix/ossource.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/chromium/third_party/glslang/src/glslang/OSDependent/Unix/ossource.cpp b/chromium/third_party/glslang/src/glslang/OSDependent/Unix/ossource.cpp new file mode 100644 index 00000000000..123e08697e2 --- /dev/null +++ b/chromium/third_party/glslang/src/glslang/OSDependent/Unix/ossource.cpp @@ -0,0 +1,190 @@ +// +//Copyright (C) 2002-2005 3Dlabs Inc. Ltd. +//All rights reserved. +// +//Redistribution and use in source and binary forms, with or without +//modification, are permitted provided that the following conditions +//are met: +// +// Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// +// Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// +// Neither the name of 3Dlabs Inc. Ltd. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +//POSSIBILITY OF SUCH DAMAGE. +// + +// +// This file contains the Linux-specific functions +// +#include "../osinclude.h" +#include "../../../OGLCompilersDLL/InitializeDll.h" + +#include <pthread.h> +#include <semaphore.h> +#include <assert.h> +#include <errno.h> +#include <stdint.h> + +namespace glslang { + +// +// Thread cleanup +// + +// +// Wrapper for Linux call to DetachThread. This is required as pthread_cleanup_push() expects +// the cleanup routine to return void. +// +static void DetachThreadLinux(void *) +{ + DetachThread(); +} + + +// +// Registers cleanup handler, sets cancel type and state, and executes the thread specific +// cleanup handler. This function will be called in the Standalone.cpp for regression +// testing. When OpenGL applications are run with the driver code, Linux OS does the +// thread cleanup. +// +void OS_CleanupThreadData(void) +{ +#ifdef __ANDROID__ + DetachThreadLinux(NULL); +#else + int old_cancel_state, old_cancel_type; + void *cleanupArg = NULL; + + // + // Set thread cancel state and push cleanup handler. + // + pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_cancel_state); + pthread_cleanup_push(DetachThreadLinux, (void *) cleanupArg); + + // + // Put the thread in deferred cancellation mode. + // + pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &old_cancel_type); + + // + // Pop cleanup handler and execute it prior to unregistering the cleanup handler. + // + pthread_cleanup_pop(1); + + // + // Restore the thread's previous cancellation mode. + // + pthread_setcanceltype(old_cancel_state, NULL); +#endif +} + + +// +// Thread Local Storage Operations +// +inline OS_TLSIndex PthreadKeyToTLSIndex(pthread_key_t key) +{ + return (OS_TLSIndex)((uintptr_t)key + 1); +} + +inline pthread_key_t TLSIndexToPthreadKey(OS_TLSIndex nIndex) +{ + return (pthread_key_t)((uintptr_t)nIndex - 1); +} + +OS_TLSIndex OS_AllocTLSIndex() +{ + pthread_key_t pPoolIndex; + + // + // Create global pool key. + // + if ((pthread_key_create(&pPoolIndex, NULL)) != 0) { + assert(0 && "OS_AllocTLSIndex(): Unable to allocate Thread Local Storage"); + return OS_INVALID_TLS_INDEX; + } + else + return PthreadKeyToTLSIndex(pPoolIndex); +} + + +bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue) +{ + if (nIndex == OS_INVALID_TLS_INDEX) { + assert(0 && "OS_SetTLSValue(): Invalid TLS Index"); + return false; + } + + if (pthread_setspecific(TLSIndexToPthreadKey(nIndex), lpvValue) == 0) + return true; + else + return false; +} + +void* OS_GetTLSValue(OS_TLSIndex nIndex) +{ + // + // This function should return 0 if nIndex is invalid. + // + assert(nIndex != OS_INVALID_TLS_INDEX); + return pthread_getspecific(TLSIndexToPthreadKey(nIndex)); +} + +bool OS_FreeTLSIndex(OS_TLSIndex nIndex) +{ + if (nIndex == OS_INVALID_TLS_INDEX) { + assert(0 && "OS_SetTLSValue(): Invalid TLS Index"); + return false; + } + + // + // Delete the global pool key. + // + if (pthread_key_delete(TLSIndexToPthreadKey(nIndex)) == 0) + return true; + else + return false; +} + +// TODO: non-windows: if we need these on linux, flesh them out +void InitGlobalLock() { } +void GetGlobalLock() { } +void ReleaseGlobalLock() { } + +void* OS_CreateThread(TThreadEntrypoint entry) +{ + return 0; +} + +void OS_WaitForAllThreads(void* threads, int numThreads) +{ +} + +void OS_Sleep(int milliseconds) +{ +} + +void OS_DumpMemoryCounters() +{ +} + +} // end namespace glslang |