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Diffstat (limited to 'xorg-server/glx/glapi.c')
-rw-r--r--xorg-server/glx/glapi.c205
1 files changed, 4 insertions, 201 deletions
diff --git a/xorg-server/glx/glapi.c b/xorg-server/glx/glapi.c
index d6a568e88..209ae50c0 100644
--- a/xorg-server/glx/glapi.c
+++ b/xorg-server/glx/glapi.c
@@ -175,12 +175,6 @@ static GLint NoOpUnused(void)
* static dispatch functions access these variables via \c _glapi_get_dispatch
* and \c _glapi_get_context.
*
- * There is a race condition in setting \c _glapi_Dispatch to \c NULL. It is
- * possible for the original thread to be setting it at the same instant a new
- * thread, perhaps running on a different processor, is clearing it. Because
- * of that, \c ThreadSafe, which can only ever be changed to \c GL_TRUE, is
- * used to determine whether or not the application is multithreaded.
- *
* In the TLS case, the variables \c _glapi_Dispatch and \c _glapi_Context are
* hardcoded to \c NULL. Instead the TLS variables \c _glapi_tls_Dispatch and
* \c _glapi_tls_Context are used. Having \c _glapi_Dispatch and
@@ -204,7 +198,6 @@ PUBLIC const void *_glapi_Context = NULL;
#if defined(THREADS)
-static GLboolean ThreadSafe = GL_FALSE; /**< In thread-safe mode? */
_glthread_TSD _gl_DispatchTSD; /**< Per-thread dispatch pointer */
static _glthread_TSD ContextTSD; /**< Per-thread context pointer */
@@ -243,37 +236,14 @@ str_dup(const char *str)
}
-
-/**
- * We should call this periodically from a function such as glXMakeCurrent
- * in order to test if multiple threads are being used.
+/*
+ * xserver's gl is not multithreaded, we promise.
*/
PUBLIC void
_glapi_check_multithread(void)
{
-#if defined(THREADS) && !defined(GLX_USE_TLS)
- if (!ThreadSafe) {
- static unsigned long knownID;
- static GLboolean firstCall = GL_TRUE;
- if (firstCall) {
- knownID = _glthread_GetID();
- firstCall = GL_FALSE;
- }
- else if (knownID != _glthread_GetID()) {
- ThreadSafe = GL_TRUE;
- _glapi_set_dispatch(NULL);
- _glapi_set_context(NULL);
- }
- }
- else if (!_glapi_get_dispatch()) {
- /* make sure that this thread's dispatch pointer isn't null */
- _glapi_set_dispatch(NULL);
- }
-#endif
}
-
-
/**
* Set the current context pointer for this thread.
* The context pointer is an opaque type which should be cast to
@@ -287,7 +257,7 @@ _glapi_set_context(void *context)
_glapi_tls_Context = context;
#elif defined(THREADS)
_glthread_SetTSD(&ContextTSD, context);
- _glapi_Context = (ThreadSafe) ? NULL : context;
+ _glapi_Context = context;
#else
_glapi_Context = context;
#endif
@@ -305,13 +275,6 @@ _glapi_get_context(void)
{
#if defined(GLX_USE_TLS)
return _glapi_tls_Context;
-#elif defined(THREADS)
- if (ThreadSafe) {
- return _glthread_GetTSD(&ContextTSD);
- }
- else {
- return _glapi_Context;
- }
#else
return _glapi_Context;
#endif
@@ -336,17 +299,12 @@ _glapi_set_dispatch(struct _glapi_table *dispatch)
/* use the no-op functions */
dispatch = (struct _glapi_table *) __glapi_noop_table;
}
-#ifdef DEBUG
- else {
- _glapi_check_table(dispatch);
- }
-#endif
#if defined(GLX_USE_TLS)
_glapi_tls_Dispatch = dispatch;
#elif defined(THREADS)
_glthread_SetTSD(&_gl_DispatchTSD, (void *) dispatch);
- _glapi_Dispatch = (ThreadSafe) ? NULL : dispatch;
+ _glapi_Dispatch = dispatch;
#else /*THREADS*/
_glapi_Dispatch = dispatch;
#endif /*THREADS*/
@@ -363,10 +321,6 @@ _glapi_get_dispatch(void)
struct _glapi_table * api;
#if defined(GLX_USE_TLS)
api = _glapi_tls_Dispatch;
-#elif defined(THREADS)
- api = (ThreadSafe)
- ? (struct _glapi_table *) _glthread_GetTSD(&_gl_DispatchTSD)
- : _glapi_Dispatch;
#else
api = _glapi_Dispatch;
#endif
@@ -472,26 +426,6 @@ get_static_proc_address(const char *funcName)
#endif /* !defined(XFree86Server) && !defined(XGLServer) */
-
-
-/**
- * Return the name of the function at the given offset in the dispatch
- * table. For debugging only.
- */
-static const char *
-get_static_proc_name( GLuint offset )
-{
- GLuint i;
- for (i = 0; static_functions[i].Name_offset >= 0; i++) {
- if (static_functions[i].Offset == offset) {
- return gl_string_table + static_functions[i].Name_offset;
- }
- }
- return NULL;
-}
-
-
-
/**********************************************************************
* Extension function management.
*/
@@ -867,26 +801,6 @@ _glapi_add_dispatch( const char * const * function_names,
return offset;
}
-
-/**
- * Return offset of entrypoint for named function within dispatch table.
- */
-PUBLIC GLint
-_glapi_get_proc_offset(const char *funcName)
-{
- /* search extension functions first */
- GLuint i;
- for (i = 0; i < NumExtEntryPoints; i++) {
- if (strcmp(ExtEntryTable[i].name, funcName) == 0) {
- return ExtEntryTable[i].dispatch_offset;
- }
- }
- /* search static functions */
- return get_static_proc_offset(funcName);
-}
-
-
-
/**
* Return pointer to the named function. If the function name isn't found
* in the name of static functions, try generating a new API entrypoint on
@@ -926,35 +840,6 @@ _glapi_get_proc_address(const char *funcName)
return (entry == NULL) ? NULL : entry->dispatch_stub;
}
-
-
-/**
- * Return the name of the function at the given dispatch offset.
- * This is only intended for debugging.
- */
-const char *
-_glapi_get_proc_name(GLuint offset)
-{
- GLuint i;
- const char * n;
-
- /* search built-in functions */
- n = get_static_proc_name(offset);
- if ( n != NULL ) {
- return n;
- }
-
- /* search added extension functions */
- for (i = 0; i < NumExtEntryPoints; i++) {
- if (ExtEntryTable[i].dispatch_offset == offset) {
- return ExtEntryTable[i].name;
- }
- }
- return NULL;
-}
-
-
-
/**
* Return size of dispatch table struct as number of functions (or
* slots).
@@ -965,88 +850,6 @@ _glapi_get_dispatch_table_size(void)
return DISPATCH_TABLE_SIZE;
}
-
-
-/**
- * Make sure there are no NULL pointers in the given dispatch table.
- * Intended for debugging purposes.
- */
-void
-_glapi_check_table(const struct _glapi_table *table)
-{
-#ifdef DEBUG
- const GLuint entries = _glapi_get_dispatch_table_size();
- const void **tab = (const void **) table;
- GLuint i;
- for (i = 1; i < entries; i++) {
- assert(tab[i]);
- }
-
- /* Do some spot checks to be sure that the dispatch table
- * slots are assigned correctly.
- */
- {
- GLuint BeginOffset = _glapi_get_proc_offset("glBegin");
- char *BeginFunc = (char*) &table->Begin;
- GLuint offset = (BeginFunc - (char *) table) / sizeof(void *);
- assert(BeginOffset == _gloffset_Begin);
- assert(BeginOffset == offset);
- }
- {
- GLuint viewportOffset = _glapi_get_proc_offset("glViewport");
- char *viewportFunc = (char*) &table->Viewport;
- GLuint offset = (viewportFunc - (char *) table) / sizeof(void *);
- assert(viewportOffset == _gloffset_Viewport);
- assert(viewportOffset == offset);
- }
- {
- GLuint VertexPointerOffset = _glapi_get_proc_offset("glVertexPointer");
- char *VertexPointerFunc = (char*) &table->VertexPointer;
- GLuint offset = (VertexPointerFunc - (char *) table) / sizeof(void *);
- assert(VertexPointerOffset == _gloffset_VertexPointer);
- assert(VertexPointerOffset == offset);
- }
- {
- GLuint ResetMinMaxOffset = _glapi_get_proc_offset("glResetMinmax");
- char *ResetMinMaxFunc = (char*) &table->ResetMinmax;
- GLuint offset = (ResetMinMaxFunc - (char *) table) / sizeof(void *);
- assert(ResetMinMaxOffset == _gloffset_ResetMinmax);
- assert(ResetMinMaxOffset == offset);
- }
- {
- GLuint blendColorOffset = _glapi_get_proc_offset("glBlendColor");
- char *blendColorFunc = (char*) &table->BlendColor;
- GLuint offset = (blendColorFunc - (char *) table) / sizeof(void *);
- assert(blendColorOffset == _gloffset_BlendColor);
- assert(blendColorOffset == offset);
- }
- {
- GLuint secondaryColor3fOffset = _glapi_get_proc_offset("glSecondaryColor3fEXT");
- char *secondaryColor3fFunc = (char*) &table->SecondaryColor3fEXT;
- GLuint offset = (secondaryColor3fFunc - (char *) table) / sizeof(void *);
- assert(secondaryColor3fOffset == _gloffset_SecondaryColor3fEXT);
- assert(secondaryColor3fOffset == offset);
- }
- {
- GLuint pointParameterivOffset = _glapi_get_proc_offset("glPointParameterivNV");
- char *pointParameterivFunc = (char*) &table->PointParameterivNV;
- GLuint offset = (pointParameterivFunc - (char *) table) / sizeof(void *);
- assert(pointParameterivOffset == _gloffset_PointParameterivNV);
- assert(pointParameterivOffset == offset);
- }
- {
- GLuint setFenceOffset = _glapi_get_proc_offset("glSetFenceNV");
- char *setFenceFunc = (char*) &table->SetFenceNV;
- GLuint offset = (setFenceFunc - (char *) table) / sizeof(void *);
- assert(setFenceOffset == _gloffset_SetFenceNV);
- assert(setFenceOffset == offset);
- }
-#else
- (void) table;
-#endif
-}
-
-
#if defined(PTHREADS) || defined(GLX_USE_TLS)
/**
* Perform platform-specific GL API entry-point fixups.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 02:22:41 +0000