mapi: Add mapi and share the code with glapi.

Specifically, move all or most of

      glapi/glapi.c         to mapi/u_current.c,
      glapi/glapi_execmem.c to mapi/u_execmem.c,
      glapi/glthread.[ch]   to mapi/u_thread.[ch]

and remove their dependencies on core Mesa headers.

18 files changed, 783 insertions, 740 deletions

diff --git a/src/mapi/es1api/Makefile b/src/mapi/es1api/Makefile
index 9130d0b01c4..203cc36deab 100644
--- a/src/mapi/es1api/Makefile
+++ b/src/mapi/es1api/Makefile
@@ -8,53 +8,69 @@ ifeq ($(ES),)
 ES := es1
 endif
 
-ESAPI = $(ES)api
+TARGET = $(ES)api
+
+GLAPI := $(TOP)/src/mapi/glapi
+MAPI := $(TOP)/src/mapi/mapi
+# directory for generated sources/headers
+GEN := glapi
 
-GLAPI := ../glapi
 include $(GLAPI)/sources.mak
-ESAPI_SOURCES := $(addprefix $(GLAPI)/, $(GLAPI_SOURCES))
-ESAPI_OBJECTS := $(GLAPI_SOURCES:.c=.o)
-ESAPI_ASM_SOURCES := $(addprefix glapi/, $(GLAPI_ASM_SOURCES))
-ESAPI_ASM_OBJECTS := $(GLAPI_ASM_SOURCES:.S=.o)
+GLAPI_OBJECTS := $(GLAPI_SOURCES:.c=.o)
+GLAPI_SOURCES := $(addprefix $(GLAPI)/, $(GLAPI_SOURCES))
+GLAPI_ASM_OBJECTS := $(GLAPI_ASM_SOURCES:.S=.o)
+GLAPI_ASM_SOURCES := $(addprefix $(GEN)/, $(GLAPI_ASM_SOURCES))
+
+include $(MAPI)/sources.mak
+MAPI_GLAPI_OBJECTS := $(MAPI_GLAPI_SOURCES:.c=.o)
+MAPI_GLAPI_SOURCES := $(addprefix $(MAPI)/, $(MAPI_GLAPI_SOURCES))
+
+TARGET_OBJECTS = $(GLAPI_OBJECTS) $(GLAPI_ASM_OBJECTS) $(MAPI_GLAPI_OBJECTS)
 
 INCLUDE_DIRS = \
 	-I$(TOP)/include \
-	-I$(TOP)/src/mapi/$(ESAPI) \
+	-I$(TOP)/src/mapi/$(TARGET) \
 	-I$(TOP)/src/mapi \
 	-I$(TOP)/src/mesa
 
 .PHONY: default
-default: depend lib$(ESAPI).a
+default: depend lib$(TARGET).a
 
-lib$(ESAPI).a: $(ESAPI_OBJECTS) $(ESAPI_ASM_OBJECTS)
-	@$(MKLIB) -o $(ESAPI) -static $(ESAPI_OBJECTS) $(ESAPI_ASM_OBJECTS)
+lib$(TARGET).a: $(TARGET_OBJECTS)
+	@$(MKLIB) -o $(TARGET) -static $(TARGET_OBJECTS)
 
-$(ESAPI_OBJECTS): %.o: $(GLAPI)/%.c
+$(GLAPI_OBJECTS): %.o: $(GLAPI)/%.c
 	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
 
-$(ESAPI_ASM_OBJECTS): %.o: glapi/%.S
+$(GLAPI_ASM_OBJECTS): %.o: $(GEN)/%.S
 	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
 
-$(ESAPI_SOURCES) $(ESAPI_ASM_SOURCES): | glapi-stamp
+$(MAPI_GLAPI_OBJECTS): %.o: $(MAPI)/%.c
+	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) -DMAPI_GLAPI_CURRENT $< -o $@
+
+$(GLAPI_SOURCES) $(GLAPI_ASM_SOURCES): | glapi-stamp
 
 glapi-stamp:
+	@# generate sources/headers
 	@$(MAKE) -C $(GLAPI)/gen-es $(ES)
 	@touch $@
 
 .PHONY: clean
 clean:
-	-rm -f $(ESAPI_OBJECTS) $(ESAPI_ASM_OBJECTS)
-	-rm -f lib$(ESAPI).a
+	-rm -f lib$(TARGET).a
+	-rm -f $(TARGET_OBJECTS)
 	-rm -f depend depend.bak
-	@$(MAKE) -C $(GLAPI)/gen-es clean-$(ES)
 	-rm -f glapi-stamp
+	@# clean generated sources/headers
+	@$(MAKE) -C $(GLAPI)/gen-es clean-$(ES)
 
 # nothing to install
 install:
 
-depend: $(ESAPI_SOURCES)
+depend: $(GLAPI_SOURCES) $(MAPI_GLAPI_SOURCES)
 	@echo "running $(MKDEP)"
 	@touch depend
 	@$(MKDEP) $(MKDEP_OPTIONS) -f- $(DEFINES) $(INCLUDE_DIRS) \
-		$(ESAPI_SOURCES) 2>/dev/null | \
-		sed -e 's,^$(GLAPI)/,,' > depend
+		-DMAPI_GLAPI_CURRENT $(GLAPI_SOURCES) $(MAPI_GLAPI_SOURCES) \
+		2>/dev/null | sed -e 's,^$(GLAPI)/,,' -e 's,^$(MAPI)/,,' \
+		> depend
diff --git a/src/mapi/glapi/Makefile b/src/mapi/glapi/Makefile
index 13c8c54de21..ca9381d4253 100644
--- a/src/mapi/glapi/Makefile
+++ b/src/mapi/glapi/Makefile
@@ -3,19 +3,29 @@
 TOP = ../../..
 include $(TOP)/configs/current
 
+TARGET = glapi
+
+MAPI = $(TOP)/src/mapi/mapi
+
 include sources.mak
 GLAPI_OBJECTS = $(GLAPI_SOURCES:.c=.o)
 GLAPI_ASM_OBJECTS = $(GLAPI_ASM_SOURCES:.S=.o)
 
+include $(MAPI)/sources.mak
+MAPI_GLAPI_OBJECTS := $(MAPI_GLAPI_SOURCES:.c=.o)
+MAPI_GLAPI_SOURCES := $(addprefix $(MAPI)/, $(MAPI_GLAPI_SOURCES))
+
+TARGET_OBJECTS = $(GLAPI_OBJECTS) $(GLAPI_ASM_OBJECTS) $(MAPI_GLAPI_OBJECTS)
+
 INCLUDE_DIRS = \
 	-I$(TOP)/include \
 	-I$(TOP)/src/mapi \
 	-I$(TOP)/src/mesa
 
-default: depend libglapi.a
+default: depend lib$(TARGET).a
 
-libglapi.a: $(GLAPI_OBJECTS) $(GLAPI_ASM_OBJECTS)
-	@ $(MKLIB) -o glapi -static $(GLAPI_OBJECTS) $(GLAPI_ASM_OBJECTS)
+lib$(TARGET).a: $(TARGET_OBJECTS)
+	@$(MKLIB) -o $(TARGET) -static $(TARGET_OBJECTS)
 
 $(GLAPI_OBJECTS): %.o: %.c
 	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
@@ -23,16 +33,21 @@ $(GLAPI_OBJECTS): %.o: %.c
 $(GLAPI_ASM_OBJECTS): %.o: %.S
 	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
 
+$(MAPI_GLAPI_OBJECTS): %.o: $(MAPI)/%.c
+	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) -DMAPI_GLAPI_CURRENT $< -o $@
+
 install:
 
 clean:
-	-rm -f $(GLAPI_OBJECTS) $(GLAPI_ASM_OBJECTS)
-	-rm -f depend depend.bak libglapi.a
+	-rm -f $(TARGET_OBJECTS)
+	-rm -f lib$(TARGET).a
+	-rm -f depend depend.bak
 
-depend: $(GLAPI_SOURCES)
+depend: $(GLAPI_SOURCES) $(MAPI_GLAPI_SOURCES)
 	@ echo "running $(MKDEP)"
 	@ touch depend
-	@$(MKDEP) $(MKDEP_OPTIONS) $(DEFINES) $(INCLUDE_DIRS) $(GLAPI_SOURCES) \
-		> /dev/null 2>/dev/null
+	@$(MKDEP) $(MKDEP_OPTIONS) -f- $(DEFINES) $(INCLUDE_DIRS) \
+		-DMAPI_GLAPI_CURRENT $(GLAPI_SOURCES) $(MAPI_GLAPI_SOURCES) \
+		2>/dev/null | sed -e 's,^$(MAPI)/,,' > depend
 
 -include depend
diff --git a/src/mapi/glapi/SConscript b/src/mapi/glapi/SConscript
index 1ace2e6b2cd..15c08255c39 100644
--- a/src/mapi/glapi/SConscript
+++ b/src/mapi/glapi/SConscript
@@ -8,21 +8,29 @@ if env['platform'] != 'winddk':
 
 	env = env.Clone()
 	
+	env.Append(CPPDEFINES = [
+		'MAPI_GLAPI_CURRENT',
+	])
+
 	env.Append(CPPPATH = [
 		'#/src/mapi',
 		'#/src/mesa',
 	])
 	
 	glapi_sources = [
-		'glapi.c',
 		'glapi_dispatch.c',
 		'glapi_entrypoint.c',
-		'glapi_execmem.c',
 		'glapi_getproc.c',
 		'glapi_nop.c',
 		'glthread.c',
 	]
 	
+	glapi_sources += [
+		'../mapi/u_current.c',
+		'../mapi/u_execmem.c',
+		'../mapi/u_thread.c',
+	]
+
 	#
 	# Assembly sources
 	#
diff --git a/src/mapi/glapi/glapi.h b/src/mapi/glapi/glapi.h
index 7dcf2e8910b..a74884d595a 100644
--- a/src/mapi/glapi/glapi.h
+++ b/src/mapi/glapi/glapi.h
@@ -44,15 +44,11 @@
 #ifndef _GLAPI_H
 #define _GLAPI_H
 
-#include "glthread.h"
-
-
-struct _glapi_table;
-
-typedef void (*_glapi_proc)(void); /* generic function pointer */
-
+#ifndef MAPI_GLAPI_CURRENT
+#define MAPI_GLAPI_CURRENT
+#endif
 
-#if defined(USE_MGL_NAMESPACE)
+#ifdef USE_MGL_NAMESPACE
 #define _glapi_set_dispatch _mglapi_set_dispatch
 #define _glapi_get_dispatch _mglapi_get_dispatch
 #define _glapi_set_context _mglapi_set_context
@@ -61,111 +57,31 @@ typedef void (*_glapi_proc)(void); /* generic function pointer */
 #define _glapi_Context _mglapi_Context
 #endif
 
+#include "mapi/u_current.h"
+#include "glapi/glthread.h"
 
-#if defined(__GNUC__)
-#  define likely(x)   __builtin_expect(!!(x), 1)
-#  define unlikely(x) __builtin_expect(!!(x), 0)
-#else
-#  define likely(x)   (x)
-#  define unlikely(x) (x)
-#endif
-
-
-/**
- ** Define the GET_DISPATCH() and GET_CURRENT_CONTEXT() macros.
- **
- ** \param C local variable which will hold the current context.
- **/
-#if defined (GLX_USE_TLS)
-
-extern const struct _glapi_table *_glapi_Dispatch;
-
-extern const void *_glapi_Context;
-
-extern __thread struct _glapi_table * _glapi_tls_Dispatch
-    __attribute__((tls_model("initial-exec")));
-
-extern __thread void * _glapi_tls_Context
-    __attribute__((tls_model("initial-exec")));
-
-# define GET_DISPATCH() _glapi_tls_Dispatch
-
-# define GET_CURRENT_CONTEXT(C)  GLcontext *C = (GLcontext *) _glapi_tls_Context
-
-#else
-
-extern struct _glapi_table *_glapi_Dispatch;
-
-extern void *_glapi_Context;
-
-# ifdef THREADS
-
-#  define GET_DISPATCH() \
-     (likely(_glapi_Dispatch) ? _glapi_Dispatch : _glapi_get_dispatch())
-
-#  define GET_CURRENT_CONTEXT(C)  GLcontext *C = (GLcontext *) \
-     (likely(_glapi_Context) ? _glapi_Context : _glapi_get_context())
-
-# else
-
-#  define GET_DISPATCH() _glapi_Dispatch
-
-#  define GET_CURRENT_CONTEXT(C)  GLcontext *C = (GLcontext *) _glapi_Context
-
-# endif
-
-#endif /* defined (GLX_USE_TLS) */
-
-
-/**
- ** GL API public functions
- **/
-
-extern void
-_glapi_init_multithread(void);
-
-
-extern void
-_glapi_destroy_multithread(void);
-
-
-extern void
-_glapi_check_multithread(void);
-
-
-extern void
-_glapi_set_context(void *context);
-
-
-extern void *
-_glapi_get_context(void);
-
-
-extern void
-_glapi_set_dispatch(struct _glapi_table *dispatch);
-
-
-extern struct _glapi_table *
-_glapi_get_dispatch(void);
+typedef void (*_glapi_proc)(void);
 
+#define GET_DISPATCH() ((struct _glapi_table *) u_current_get())
+#define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) u_current_get_user()
 
-extern unsigned int
+PUBLIC unsigned int
 _glapi_get_dispatch_table_size(void);
 
 
-extern int
+PUBLIC int
 _glapi_add_dispatch( const char * const * function_names,
 		     const char * parameter_signature );
 
-extern int
+PUBLIC int
 _glapi_get_proc_offset(const char *funcName);
 
 
-extern _glapi_proc
+PUBLIC _glapi_proc
 _glapi_get_proc_address(const char *funcName);
 
 
-extern const char *
+PUBLIC const char *
 _glapi_get_proc_name(unsigned int offset);
 
 
diff --git a/src/mapi/glapi/glapi_entrypoint.c b/src/mapi/glapi/glapi_entrypoint.c
index 239780e7539..82c68c27c8b 100644
--- a/src/mapi/glapi/glapi_entrypoint.c
+++ b/src/mapi/glapi/glapi_entrypoint.c
@@ -39,6 +39,7 @@
 
 #include "glapi/glapi.h"
 #include "glapi/glapi_priv.h"
+#include "mapi/u_execmem.h"
 
 
 #ifdef USE_X86_ASM
@@ -105,7 +106,7 @@ generate_entrypoint(unsigned int functionOffset)
     */
    const GLubyte * const template_func = gl_dispatch_functions_start 
      + (DISPATCH_FUNCTION_SIZE * 32);
-   GLubyte * const code = (GLubyte *) _glapi_exec_malloc(DISPATCH_FUNCTION_SIZE);
+   GLubyte * const code = (GLubyte *) u_execmem_alloc(DISPATCH_FUNCTION_SIZE);
 
 
    if ( code != NULL ) {
@@ -288,7 +289,7 @@ generate_entrypoint(GLuint functionOffset)
    extern unsigned int __glapi_sparc_pthread_stub;
    unsigned long call_dest = (unsigned long ) &__glapi_sparc_pthread_stub;
 #endif
-   unsigned int *code = (unsigned int *) _glapi_exec_malloc(sizeof(template));
+   unsigned int *code = (unsigned int *) u_execmem_alloc(sizeof(template));
    if (code) {
       code[0] = template[0] | (functionOffset & 0x3fffff);
       code[1] = template[1];
diff --git a/src/mapi/glapi/glapi_getproc.c b/src/mapi/glapi/glapi_getproc.c
index c73e8dd3b04..3c134f929d6 100644
--- a/src/mapi/glapi/glapi_getproc.c
+++ b/src/mapi/glapi/glapi_getproc.c
@@ -387,7 +387,7 @@ set_entry_info( struct _glapi_function * entry, const char * signature, unsigned
  * the parameter signature of a static function.
  */
 
-PUBLIC int
+int
 _glapi_add_dispatch( const char * const * function_names,
 		     const char * parameter_signature )
 {
@@ -501,7 +501,7 @@ _glapi_add_dispatch( const char * const * function_names,
 /**
  * Return offset of entrypoint for named function within dispatch table.
  */
-PUBLIC GLint
+GLint
 _glapi_get_proc_offset(const char *funcName)
 {
    GLint offset;
@@ -522,7 +522,7 @@ _glapi_get_proc_offset(const char *funcName)
  * in the name of static functions, try generating a new API entrypoint on
  * the fly with assembly language.
  */
-PUBLIC _glapi_proc
+_glapi_proc
 _glapi_get_proc_address(const char *funcName)
 {
    _glapi_proc func;
@@ -598,7 +598,7 @@ _glapi_get_proc_name(GLuint offset)
  * Return size of dispatch table struct as number of functions (or
  * slots).
  */
-PUBLIC GLuint
+GLuint
 _glapi_get_dispatch_table_size(void)
 {
    return DISPATCH_TABLE_SIZE;
diff --git a/src/mapi/glapi/glapi_priv.h b/src/mapi/glapi/glapi_priv.h
index da6fee63fe7..1c2a7042113 100644
--- a/src/mapi/glapi/glapi_priv.h
+++ b/src/mapi/glapi/glapi_priv.h
@@ -41,12 +41,6 @@ extern void
 _glapi_check_table(const struct _glapi_table *table);
 
 
-/* execmem */
-
-extern void *
-_glapi_exec_malloc(unsigned int size);
-
-
 /* entrypoint */
 
 extern void
diff --git a/src/mapi/glapi/glthread.c b/src/mapi/glapi/glthread.c
index f365d17bdda..9dbc0e9a56f 100644
--- a/src/mapi/glapi/glthread.c
+++ b/src/mapi/glapi/glthread.c
@@ -1,263 +1,7 @@
-/*
- * Mesa 3-D graphics library
- * Version:  6.5.1
- *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
+#include "glthread.h"
 
-
-/*
- * XXX There's probably some work to do in order to make this file
- * truly reusable outside of Mesa.  First, the glheader.h include must go.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#include "glapi/mesa.h"
-#else
-#include "main/compiler.h"
-#endif
-
-#include "glapi/glthread.h"
-
-
-/*
- * This file should still compile even when THREADS is not defined.
- * This is to make things easier to deal with on the makefile scene..
- */
-#ifdef THREADS
-#include <errno.h>
-
-/*
- * Error messages
- */
-#define INIT_TSD_ERROR "_glthread_: failed to allocate key for thread specific data"
-#define GET_TSD_ERROR "_glthread_: failed to get thread specific data"
-#define SET_TSD_ERROR "_glthread_: thread failed to set thread specific data"
-
-
-/*
- * Magic number to determine if a TSD object has been initialized.
- * Kind of a hack but there doesn't appear to be a better cross-platform
- * solution.
- */
-#define INIT_MAGIC 0xff8adc98
-
-
-
-/*
- * POSIX Threads -- The best way to go if your platform supports them.
- *                  Solaris >= 2.5 have POSIX threads, IRIX >= 6.4 reportedly
- *                  has them, and many of the free Unixes now have them.
- *                  Be sure to use appropriate -mt or -D_REENTRANT type
- *                  compile flags when building.
- */
-#ifdef PTHREADS
-
-PUBLIC unsigned long
-_glthread_GetID(void)
-{
-   return (unsigned long) pthread_self();
-}
-
-
-void
-_glthread_InitTSD(_glthread_TSD *tsd)
-{
-   if (pthread_key_create(&tsd->key, NULL/*free*/) != 0) {
-      perror(INIT_TSD_ERROR);
-      exit(-1);
-   }
-   tsd->initMagic = INIT_MAGIC;
-}
-
-
-void *
-_glthread_GetTSD(_glthread_TSD *tsd)
-{
-   if (tsd->initMagic != (int) INIT_MAGIC) {
-      _glthread_InitTSD(tsd);
-   }
-   return pthread_getspecific(tsd->key);
-}
-
-
-void
-_glthread_SetTSD(_glthread_TSD *tsd, void *ptr)
-{
-   if (tsd->initMagic != (int) INIT_MAGIC) {
-      _glthread_InitTSD(tsd);
-   }
-   if (pthread_setspecific(tsd->key, ptr) != 0) {
-      perror(SET_TSD_ERROR);
-      exit(-1);
-   }
-}
-
-#endif /* PTHREADS */
-
-
-
-/*
- * Win32 Threads.  The only available option for Windows 95/NT.
- * Be sure that you compile using the Multithreaded runtime, otherwise
- * bad things will happen.
- */
-#ifdef WIN32_THREADS
-
-static void InsteadOf_exit(int nCode)
-{
-   DWORD dwErr = GetLastError();
-}
-
-PUBLIC unsigned long
-_glthread_GetID(void)
-{
-   return GetCurrentThreadId();
-}
-
-
-void
-_glthread_InitTSD(_glthread_TSD *tsd)
-{
-   tsd->key = TlsAlloc();
-   if (tsd->key == TLS_OUT_OF_INDEXES) {
-      perror(INIT_TSD_ERROR);
-      InsteadOf_exit(-1);
-   }
-   tsd->initMagic = INIT_MAGIC;
-}
-
-
-void
-_glthread_DestroyTSD(_glthread_TSD *tsd)
-{
-   if (tsd->initMagic != INIT_MAGIC) {
-      return;
-   }
-   TlsFree(tsd->key);
-   tsd->initMagic = 0x0;
-}
-
-
-void *
-_glthread_GetTSD(_glthread_TSD *tsd)
-{
-   if (tsd->initMagic != INIT_MAGIC) {
-      _glthread_InitTSD(tsd);
-   }
-   return TlsGetValue(tsd->key);
-}
-
-
-void
-_glthread_SetTSD(_glthread_TSD *tsd, void *ptr)
-{
-   /* the following code assumes that the _glthread_TSD has been initialized
-      to zero at creation */
-   if (tsd->initMagic != INIT_MAGIC) {
-      _glthread_InitTSD(tsd);
-   }
-   if (TlsSetValue(tsd->key, ptr) == 0) {
-      perror(SET_TSD_ERROR);
-      InsteadOf_exit(-1);
-   }
-}
-
-#endif /* WIN32_THREADS */
-
-/*
- * BeOS threads
- */
-#ifdef BEOS_THREADS
-
-PUBLIC unsigned long
+unsigned long
 _glthread_GetID(void)
 {
-   return (unsigned long) find_thread(NULL);
+   return u_thread_self();
 }
-
-void
-_glthread_InitTSD(_glthread_TSD *tsd)
-{
-   tsd->key = tls_allocate();
-   tsd->initMagic = INIT_MAGIC;
-}
-
-void *
-_glthread_GetTSD(_glthread_TSD *tsd)
-{
-   if (tsd->initMagic != (int) INIT_MAGIC) {
-      _glthread_InitTSD(tsd);
-   }
-   return tls_get(tsd->key);
-}
-
-void
-_glthread_SetTSD(_glthread_TSD *tsd, void *ptr)
-{
-   if (tsd->initMagic != (int) INIT_MAGIC) {
-      _glthread_InitTSD(tsd);
-   }
-   tls_set(tsd->key, ptr);
-}
-
-#endif /* BEOS_THREADS */
-
-
-
-#else  /* THREADS */
-
-
-/*
- * no-op functions
- */
-
-PUBLIC unsigned long
-_glthread_GetID(void)
-{
-   return 0;
-}
-
-
-void
-_glthread_InitTSD(_glthread_TSD *tsd)
-{
-   (void) tsd;
-}
-
-
-void *
-_glthread_GetTSD(_glthread_TSD *tsd)
-{
-   (void) tsd;
-   return NULL;
-}
-
-
-void
-_glthread_SetTSD(_glthread_TSD *tsd, void *ptr)
-{
-   (void) tsd;
-   (void) ptr;
-}
-
-
-#endif /* THREADS */
diff --git a/src/mapi/glapi/glthread.h b/src/mapi/glapi/glthread.h
index 4fe99284a8c..54292706acf 100644
--- a/src/mapi/glapi/glthread.h
+++ b/src/mapi/glapi/glthread.h
@@ -1,255 +1,23 @@
-/*
- * Mesa 3-D graphics library
- * Version:  6.5.2
- *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/*
- * Thread support for gl dispatch.
- *
- * Initial version by John Stone ([email protected]) ([email protected])
- *                and Christoph Poliwoda ([email protected])
- * Revised by Keith Whitwell
- * Adapted for new gl dispatcher by Brian Paul
- *
- *
- *
- * DOCUMENTATION
- *
- * This thread module exports the following types:
- *   _glthread_TSD     Thread-specific data area
- *   _glthread_Thread  Thread datatype
- *   _glthread_Mutex   Mutual exclusion lock
- *
- * Macros:
- *   _glthread_DECLARE_STATIC_MUTEX(name)   Declare a non-local mutex
- *   _glthread_INIT_MUTEX(name)             Initialize a mutex
- *   _glthread_LOCK_MUTEX(name)             Lock a mutex
- *   _glthread_UNLOCK_MUTEX(name)           Unlock a mutex
- *
- * Functions:
- *   _glthread_GetID(v)      Get integer thread ID
- *   _glthread_InitTSD()     Initialize thread-specific data
- *   _glthread_GetTSD()      Get thread-specific data
- *   _glthread_SetTSD()      Set thread-specific data
- *
- */
-
-/*
- * If this file is accidentally included by a non-threaded build,
- * it should not cause the build to fail, or otherwise cause problems.
- * In general, it should only be included when needed however.
- */
-
 #ifndef GLTHREAD_H
 #define GLTHREAD_H
 
+#include "mapi/u_thread.h"
 
-#if defined(PTHREADS) || defined(WIN32_THREADS) || defined(BEOS_THREADS)
-#ifndef THREADS
-#define THREADS
-#endif
-#endif
-
-
-/*
- * POSIX threads. This should be your choice in the Unix world
- * whenever possible.  When building with POSIX threads, be sure
- * to enable any compiler flags which will cause the MT-safe
- * libc (if one exists) to be used when linking, as well as any
- * header macros for MT-safe errno, etc.  For Solaris, this is the -mt
- * compiler flag.  On Solaris with gcc, use -D_REENTRANT to enable
- * proper compiling for MT-safe libc etc.
- */
-#if defined(PTHREADS)
-#include <pthread.h> /* POSIX threads headers */
-
-typedef struct {
-   pthread_key_t  key;
-   int initMagic;
-} _glthread_TSD;
-
-typedef pthread_t _glthread_Thread;
-
-typedef pthread_mutex_t _glthread_Mutex;
-
-#define _glthread_DECLARE_STATIC_MUTEX(name) \
-   static _glthread_Mutex name = PTHREAD_MUTEX_INITIALIZER
-
-#define _glthread_INIT_MUTEX(name) \
-   pthread_mutex_init(&(name), NULL)
-
-#define _glthread_DESTROY_MUTEX(name) \
-   pthread_mutex_destroy(&(name))
-
-#define _glthread_LOCK_MUTEX(name) \
-   (void) pthread_mutex_lock(&(name))
-
-#define _glthread_UNLOCK_MUTEX(name) \
-   (void) pthread_mutex_unlock(&(name))
-
-#endif /* PTHREADS */
-
-
-/*
- * Windows threads. Should work with Windows NT and 95.
- * IMPORTANT: Link with multithreaded runtime library when THREADS are
- * used!
- */
-#ifdef WIN32_THREADS
-#include <windows.h>
-
-typedef struct {
-   DWORD key;
-   int   initMagic;
-} _glthread_TSD;
-
-typedef HANDLE _glthread_Thread;
-
-typedef CRITICAL_SECTION _glthread_Mutex;
-
-#define _glthread_DECLARE_STATIC_MUTEX(name) \
-   /* static */ _glthread_Mutex name = { 0, 0, 0, 0, 0, 0 }
-
-#define _glthread_INIT_MUTEX(name) \
-   InitializeCriticalSection(&name)
-
-#define _glthread_DESTROY_MUTEX(name) \
-   DeleteCriticalSection(&name)
-
-#define _glthread_LOCK_MUTEX(name) \
-   EnterCriticalSection(&name)
-
-#define _glthread_UNLOCK_MUTEX(name) \
-   LeaveCriticalSection(&name)
-
-#endif /* WIN32_THREADS */
-
-
-/*
- * BeOS threads. R5.x required.
- */
-#ifdef BEOS_THREADS
-
-/* Problem with OS.h and this file on haiku */
-#ifndef __HAIKU__
-#include <kernel/OS.h>
-#endif
-
-#include <support/TLS.h>
-
-/* The only two typedefs required here
- * this is cause of the OS.h problem
- */
-#ifdef __HAIKU__
-typedef int32 thread_id;
-typedef int32 sem_id;
-#endif
+#define _glthread_DECLARE_STATIC_MUTEX(name) u_mutex_declare_static(name)
+#define _glthread_INIT_MUTEX(name)           u_mutex_init(name)
+#define _glthread_DESTROY_MUTEX(name)        u_mutex_destroy(name)
+#define _glthread_LOCK_MUTEX(name)           u_mutex_lock(name)
+#define _glthread_UNLOCK_MUTEX(name)         u_mutex_unlock(name)
 
-typedef struct {
-   int32        key;
-   int          initMagic;
-} _glthread_TSD;
+#define _glthread_InitTSD(tsd)               u_tsd_init(tsd);
+#define _glthread_DestroyTSD(tsd)            u_tsd_destroy(tsd);
+#define _glthread_GetTSD(tsd)                u_tsd_get(tsd);
+#define _glthread_SetTSD(tsd, ptr)           u_tsd_set(tsd, ptr);
 
-typedef thread_id _glthread_Thread;
+typedef struct u_tsd _glthread_TSD;
+typedef u_mutex _glthread_Mutex;
 
-/* Use Benaphore, aka speeder semaphore */
-typedef struct {
-    int32   lock;
-    sem_id  sem;
-} benaphore;
-typedef benaphore _glthread_Mutex;
-
-#define _glthread_DECLARE_STATIC_MUTEX(name) \
-   static _glthread_Mutex name = { 0, 0 }
-
-#define _glthread_INIT_MUTEX(name) \
-   name.sem = create_sem(0, #name"_benaphore"), \
-   name.lock = 0
-
-#define _glthread_DESTROY_MUTEX(name) \
-   delete_sem(name.sem), \
-   name.lock = 0
-
-#define _glthread_LOCK_MUTEX(name) \
-   if (name.sem == 0) \
-      _glthread_INIT_MUTEX(name); \
-   if (atomic_add(&(name.lock), 1) >= 1) \
-      acquire_sem(name.sem)
-
-#define _glthread_UNLOCK_MUTEX(name) \
-   if (atomic_add(&(name.lock), -1) > 1) \
-      release_sem(name.sem)
-
-#endif /* BEOS_THREADS */
-
-
-/*
- * THREADS not defined
- */
-#ifndef THREADS
-
-typedef unsigned _glthread_TSD;
-
-typedef unsigned _glthread_Thread;
-
-typedef unsigned _glthread_Mutex;
-
-#define _glthread_DECLARE_STATIC_MUTEX(name)  static _glthread_Mutex name = 0
-
-#define _glthread_INIT_MUTEX(name)  (void) name
-
-#define _glthread_DESTROY_MUTEX(name)  (void) name
-
-#define _glthread_LOCK_MUTEX(name)  (void) name
-
-#define _glthread_UNLOCK_MUTEX(name)  (void) name
-
-#endif /* THREADS */
-
-
-
-/*
- * Platform independent thread specific data API.
- */
-
-extern unsigned long
+PUBLIC unsigned long
 _glthread_GetID(void);
 
-
-extern void
-_glthread_InitTSD(_glthread_TSD *);
-
-
-extern void
-_glthread_DestroyTSD(_glthread_TSD *); /* WIN32 only */
-
-
-extern void *
-_glthread_GetTSD(_glthread_TSD *);
-
-
-extern void
-_glthread_SetTSD(_glthread_TSD *, void *);
-
-
 #endif /* THREADS_H */
diff --git a/src/mapi/glapi/sources.mak b/src/mapi/glapi/sources.mak
index 8e1e82f359a..cdcfa36e51f 100644
--- a/src/mapi/glapi/sources.mak
+++ b/src/mapi/glapi/sources.mak
@@ -1,10 +1,8 @@
 # src/mapi/glapi/sources.mak
 
 GLAPI_SOURCES = \
-	glapi.c \
 	glapi_dispatch.c \
 	glapi_entrypoint.c \
-	glapi_execmem.c \
 	glapi_getproc.c \
 	glapi_nop.c \
 	glthread.c
diff --git a/src/mapi/mapi/sources.mak b/src/mapi/mapi/sources.mak
new file mode 100644
index 00000000000..9e27f45e2a9
--- /dev/null
+++ b/src/mapi/mapi/sources.mak
@@ -0,0 +1,6 @@
+# src/mapi/mapi/sources.mak
+
+MAPI_GLAPI_SOURCES = \
+	u_current.c \
+	u_execmem.c \
+	u_thread.c
diff --git a/src/mapi/mapi/u_compiler.h b/src/mapi/mapi/u_compiler.h
new file mode 100644
index 00000000000..cc9e2cd1e81
--- /dev/null
+++ b/src/mapi/mapi/u_compiler.h
@@ -0,0 +1,48 @@
+#ifndef _U_COMPILER_H_
+#define _U_COMPILER_H_
+
+/* Function inlining */
+#ifndef INLINE
+#  ifdef __cplusplus
+#    define INLINE inline
+#  elif defined(__GNUC__)
+#    define INLINE __inline__
+#  elif defined(_MSC_VER)
+#    define INLINE __inline
+#  elif defined(__ICL)
+#    define INLINE __inline
+#  elif defined(__INTEL_COMPILER)
+#    define INLINE inline
+#  elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
+#    define INLINE __inline
+#  elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
+#    define INLINE inline
+#  elif (__STDC_VERSION__ >= 199901L) /* C99 */
+#    define INLINE inline
+#  else
+#    define INLINE
+#  endif
+#endif
+
+/* Function visibility */
+#ifndef PUBLIC
+#  if defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
+#    define PUBLIC __attribute__((visibility("default")))
+#    define HIDDEN __attribute__((visibility("hidden")))
+#  else
+#    define PUBLIC
+#    define HIDDEN
+#  endif
+#endif
+
+#ifndef likely
+#  if defined(__GNUC__)
+#    define likely(x)   __builtin_expect(!!(x), 1)
+#    define unlikely(x) __builtin_expect(!!(x), 0)
+#  else
+#    define likely(x)   (x)
+#    define unlikely(x) (x)
+#  endif
+#endif
+
+#endif /* _U_COMPILER_H_ */
diff --git a/src/mapi/glapi/glapi.c b/src/mapi/mapi/u_current.c
index ce85cf6a87b..91547c48301 100644
--- a/src/mapi/glapi/glapi.c
+++ b/src/mapi/mapi/u_current.c
@@ -48,21 +48,23 @@
  *                 drivers!  No changes to the public glapi interface.
  */
 
+#include "u_current.h"
+#include "u_thread.h"
 
+#ifndef MAPI_GLAPI_CURRENT
+
+#include "table.h"
+#include "stub.h"
 
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#include "glapi/mesa.h"
 #else
-#include "main/glheader.h"
-#include "main/compiler.h"
-#endif
 
-#include "glapi/glapi.h"
-#include "glapi/glapi_priv.h"
+extern void init_glapi_relocs_once(void);
+extern void (*__glapi_noop_table[])(void);
 
-extern _glapi_proc __glapi_noop_table[];
+#define table_noop_array __glapi_noop_table
+#define stub_init_once() init_glapi_relocs_once()
 
+#endif
 
 /**
  * \name Current dispatch and current context control variables
@@ -97,54 +99,49 @@ extern _glapi_proc __glapi_noop_table[];
 /*@{*/
 #if defined(GLX_USE_TLS)
 
-PUBLIC __thread struct _glapi_table * _glapi_tls_Dispatch
+__thread struct _glapi_table *_glapi_tls_Dispatch
     __attribute__((tls_model("initial-exec")))
-    = (struct _glapi_table *) __glapi_noop_table;
+    = (struct _glapi_table *) table_noop_array;
 
-PUBLIC __thread void * _glapi_tls_Context
+__thread void * _glapi_tls_Context
     __attribute__((tls_model("initial-exec")));
 
-PUBLIC const struct _glapi_table *_glapi_Dispatch = NULL;
-
-PUBLIC const void *_glapi_Context = NULL;
+const struct _glapi_table *_glapi_Dispatch;
+const void *_glapi_Context;
 
 #else
 
-#if defined(THREADS)
-
-static GLboolean ThreadSafe = GL_FALSE;  /**< In thread-safe mode? */
-
-_glthread_TSD _gl_DispatchTSD;           /**< Per-thread dispatch pointer */
+struct _glapi_table *_glapi_Dispatch =
+   (struct _glapi_table *) table_noop_array;
+void *_glapi_Context;
 
-static _glthread_TSD ContextTSD;         /**< Per-thread context pointer */
-
-#endif /* defined(THREADS) */
-
-PUBLIC struct _glapi_table *_glapi_Dispatch = (struct _glapi_table *) __glapi_noop_table;
-
-PUBLIC void *_glapi_Context = NULL;
+#ifdef THREADS
+struct u_tsd _gl_DispatchTSD;
+static struct u_tsd ContextTSD;
+static int ThreadSafe;
+#endif /* THREADS */
 
 #endif /* defined(GLX_USE_TLS) */
 /*@}*/
 
 
-
-#if defined(THREADS) && !defined(GLX_USE_TLS)
-
 void
-_glapi_init_multithread(void)
+_glapi_destroy_multithread(void)
 {
-   _glthread_InitTSD(&_gl_DispatchTSD);
-   _glthread_InitTSD(&ContextTSD);
+#if defined(THREADS) && defined(WIN32_THREADS)
+   u_tsd_destroy(&_gl_DispatchTSD);
+   u_tsd_destroy(&ContextTSD);
+#endif
 }
 
-void
-_glapi_destroy_multithread(void)
+
+#if defined(THREADS) && !defined(GLX_USE_TLS)
+
+static void
+_glapi_init_multithread(void)
 {
-#ifdef WIN32_THREADS
-   _glthread_DestroyTSD(&_gl_DispatchTSD);
-   _glthread_DestroyTSD(&ContextTSD);
-#endif
+   u_tsd_init(&_gl_DispatchTSD);
+   u_tsd_init(&ContextTSD);
 }
 
 /**
@@ -155,20 +152,20 @@ _glapi_destroy_multithread(void)
 #define CHECK_MULTITHREAD_LOCK()
 #define CHECK_MULTITHREAD_UNLOCK()
 #else
-_glthread_DECLARE_STATIC_MUTEX(ThreadCheckMutex);
-#define CHECK_MULTITHREAD_LOCK() _glthread_LOCK_MUTEX(ThreadCheckMutex)
-#define CHECK_MULTITHREAD_UNLOCK() _glthread_UNLOCK_MUTEX(ThreadCheckMutex)
+u_mutex_declare_static(ThreadCheckMutex);
+#define CHECK_MULTITHREAD_LOCK() u_mutex_lock(ThreadCheckMutex)
+#define CHECK_MULTITHREAD_UNLOCK() u_mutex_unlock(ThreadCheckMutex)
 #endif
 
 /**
  * We should call this periodically from a function such as glXMakeCurrent
  * in order to test if multiple threads are being used.
  */
-PUBLIC void
+void
 _glapi_check_multithread(void)
 {
    static unsigned long knownID;
-   static GLboolean firstCall = GL_TRUE;
+   static int firstCall = 1;
 
    if (ThreadSafe)
       return;
@@ -177,11 +174,11 @@ _glapi_check_multithread(void)
    if (firstCall) {
       _glapi_init_multithread();
 
-      knownID = _glthread_GetID();
-      firstCall = GL_FALSE;
+      knownID = u_thread_self();
+      firstCall = 0;
    }
-   else if (knownID != _glthread_GetID()) {
-      ThreadSafe = GL_TRUE;
+   else if (knownID != u_thread_self()) {
+      ThreadSafe = 1;
       _glapi_set_dispatch(NULL);
       _glapi_set_context(NULL);
    }
@@ -191,13 +188,9 @@ _glapi_check_multithread(void)
 #else
 
 void
-_glapi_init_multithread(void) { }
-
-void
-_glapi_destroy_multithread(void) { }
-
-PUBLIC void
-_glapi_check_multithread(void) { }
+_glapi_check_multithread(void)
+{
+}
 
 #endif
 
@@ -208,85 +201,73 @@ _glapi_check_multithread(void) { }
  * The context pointer is an opaque type which should be cast to
  * void from the real context pointer type.
  */
-PUBLIC void
+void
 _glapi_set_context(void *context)
 {
 #if defined(GLX_USE_TLS)
    _glapi_tls_Context = context;
 #elif defined(THREADS)
-   _glthread_SetTSD(&ContextTSD, context);
+   u_tsd_set(&ContextTSD, context);
    _glapi_Context = (ThreadSafe) ? NULL : context;
 #else
    _glapi_Context = context;
 #endif
 }
 
-
-
 /**
  * Get the current context pointer for this thread.
  * The context pointer is an opaque type which should be cast from
  * void to the real context pointer type.
  */
-PUBLIC void *
+void *
 _glapi_get_context(void)
 {
 #if defined(GLX_USE_TLS)
    return _glapi_tls_Context;
 #elif defined(THREADS)
-   return (ThreadSafe) ? _glthread_GetTSD(&ContextTSD) : _glapi_Context;
+   return (ThreadSafe)
+      ? u_tsd_get(&ContextTSD)
+      : _glapi_Context;
 #else
    return _glapi_Context;
 #endif
 }
 
-
-
 /**
  * Set the global or per-thread dispatch table pointer.
  * If the dispatch parameter is NULL we'll plug in the no-op dispatch
  * table (__glapi_noop_table).
  */
-PUBLIC void
+void
 _glapi_set_dispatch(struct _glapi_table *dispatch)
 {
-   init_glapi_relocs_once();
+   stub_init_once();
 
-   if (dispatch == NULL) {
-      /* use the no-op functions */
-      dispatch = (struct _glapi_table *) __glapi_noop_table;
-   }
-#ifdef DEBUG
-   else {
-      _glapi_check_table_not_null(dispatch);
-      _glapi_check_table(dispatch);
-   }
-#endif
+   if (!dispatch)
+      dispatch = (struct _glapi_table *) table_noop_array;
 
 #if defined(GLX_USE_TLS)
    _glapi_tls_Dispatch = dispatch;
 #elif defined(THREADS)
-   _glthread_SetTSD(&_gl_DispatchTSD, (void *) dispatch);
+   u_tsd_set(&_gl_DispatchTSD, (void *) dispatch);
    _glapi_Dispatch = (ThreadSafe) ? NULL : dispatch;
 #else
    _glapi_Dispatch = dispatch;
 #endif
 }
 
-
-
 /**
  * Return pointer to current dispatch table for calling thread.
  */
-PUBLIC struct _glapi_table *
+struct _glapi_table *
 _glapi_get_dispatch(void)
 {
 #if defined(GLX_USE_TLS)
    return _glapi_tls_Dispatch;
 #elif defined(THREADS)
    return (ThreadSafe)
-     ? (struct _glapi_table *) _glthread_GetTSD(&_gl_DispatchTSD)
-     : _glapi_Dispatch;
+      ? (struct _glapi_table *) u_tsd_get(&_gl_DispatchTSD)
+      : _glapi_Dispatch;
 #else
    return _glapi_Dispatch;
 #endif
diff --git a/src/mapi/mapi/u_current.h b/src/mapi/mapi/u_current.h
new file mode 100644
index 00000000000..a6256f5b512
--- /dev/null
+++ b/src/mapi/mapi/u_current.h
@@ -0,0 +1,93 @@
+#ifndef _U_CURRENT_H_
+#define _U_CURRENT_H_
+
+#include "u_compiler.h"
+
+#ifdef MAPI_GLAPI_CURRENT
+#define GLAPI_EXPORT PUBLIC
+#else
+#define GLAPI_EXPORT
+#endif
+
+/*
+ * Unlike other utility functions, we need to keep the old names (_glapi_*) for
+ * ABI compatibility.  The desired functions are wrappers to the old ones.
+ */
+
+struct _glapi_table;
+
+#ifdef GLX_USE_TLS
+
+GLAPI_EXPORT extern __thread struct _glapi_table *_glapi_tls_Dispatch
+    __attribute__((tls_model("initial-exec")));
+
+GLAPI_EXPORT extern __thread void *_glapi_tls_Context
+    __attribute__((tls_model("initial-exec")));
+
+GLAPI_EXPORT extern const struct _glapi_table *_glapi_Dispatch;
+GLAPI_EXPORT extern const void *_glapi_Context;
+
+#else /* GLX_USE_TLS */
+
+GLAPI_EXPORT extern struct _glapi_table *_glapi_Dispatch;
+GLAPI_EXPORT extern void *_glapi_Context;
+
+#endif /* GLX_USE_TLS */
+
+GLAPI_EXPORT void
+_glapi_check_multithread(void);
+
+GLAPI_EXPORT void
+_glapi_set_context(void *context);
+
+GLAPI_EXPORT void *
+_glapi_get_context(void);
+
+GLAPI_EXPORT void
+_glapi_set_dispatch(struct _glapi_table *dispatch);
+
+GLAPI_EXPORT struct _glapi_table *
+_glapi_get_dispatch(void);
+
+void
+_glapi_destroy_multithread(void);
+
+
+struct mapi_table;
+
+static INLINE void
+u_current_set(const struct mapi_table *tbl)
+{
+   _glapi_check_multithread();
+   _glapi_set_dispatch((struct _glapi_table *) tbl);
+}
+
+static INLINE const struct mapi_table *
+u_current_get(void)
+{
+#ifdef GLX_USE_TLS
+   return (const struct mapi_table *) _glapi_tls_Dispatch;
+#else
+   return (const struct mapi_table *) (likely(_glapi_Dispatch) ?
+      _glapi_Dispatch : _glapi_get_dispatch());
+#endif
+}
+
+static INLINE void
+u_current_set_user(void *ptr)
+{
+   _glapi_check_multithread();
+   _glapi_set_context(ptr);
+}
+
+static INLINE void *
+u_current_get_user(void)
+{
+#ifdef GLX_USE_TLS
+   return _glapi_tls_Context;
+#else
+   return likely(_glapi_Context) ? _glapi_Context : _glapi_get_context();
+#endif
+}
+
+#endif /* GLX_USE_TLS */
diff --git a/src/mapi/glapi/glapi_execmem.c b/src/mapi/mapi/u_execmem.c
index 57f00be8dcc..0e0f8aa316f 100644
--- a/src/mapi/glapi/glapi_execmem.c
+++ b/src/mapi/mapi/u_execmem.c
@@ -32,15 +32,9 @@
  */
 
 
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#include "glapi/mesa.h"
-#else
-#include "main/compiler.h"
-#endif
-
-#include "glapi/glthread.h"
-#include "glapi/glapi_priv.h"
+#include "u_compiler.h"
+#include "u_thread.h"
+#include "u_execmem.h"
 
 
 #if defined(__linux__) || defined(__OpenBSD__) || defined(_NetBSD__) || defined(__sun)
@@ -60,7 +54,7 @@
 
 #define EXEC_MAP_SIZE (4*1024)
 
-_glthread_DECLARE_STATIC_MUTEX(exec_mutex);
+u_mutex_declare_static(exec_mutex);
 
 static unsigned int head = 0;
 
@@ -92,11 +86,11 @@ init_map(void)
 
 
 void *
-_glapi_exec_malloc(unsigned int size)
+u_execmem_alloc(unsigned int size)
 {
    void *addr = NULL;
 
-   _glthread_LOCK_MUTEX(exec_mutex);
+   u_mutex_lock(exec_mutex);
 
    if (!init_map())
       goto bail;
@@ -110,7 +104,7 @@ _glapi_exec_malloc(unsigned int size)
    head += size;
 
 bail:
-   _glthread_UNLOCK_MUTEX(exec_mutex);
+   u_mutex_unlock(exec_mutex);
 
    return addr;
 }
@@ -119,7 +113,7 @@ bail:
 #else
 
 void *
-_glapi_exec_malloc(unsigned int size)
+u_execmem_alloc(unsigned int size)
 {
    return malloc(size);
 }
diff --git a/src/mapi/mapi/u_execmem.h b/src/mapi/mapi/u_execmem.h
new file mode 100644
index 00000000000..13fff8df225
--- /dev/null
+++ b/src/mapi/mapi/u_execmem.h
@@ -0,0 +1,7 @@
+#ifndef _U_EXECMEM_H_
+#define _U_EXECMEM_H_
+
+void *
+u_execmem_alloc(unsigned int size);
+
+#endif /* _U_EXECMEM_H_ */
diff --git a/src/mapi/mapi/u_thread.c b/src/mapi/mapi/u_thread.c
new file mode 100644
index 00000000000..e0fa64ae034
--- /dev/null
+++ b/src/mapi/mapi/u_thread.c
@@ -0,0 +1,254 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5.1
+ *
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "u_compiler.h"
+#include "u_thread.h"
+
+
+/*
+ * This file should still compile even when THREADS is not defined.
+ * This is to make things easier to deal with on the makefile scene..
+ */
+#ifdef THREADS
+#include <errno.h>
+
+/*
+ * Error messages
+ */
+#define INIT_TSD_ERROR "_glthread_: failed to allocate key for thread specific data"
+#define GET_TSD_ERROR "_glthread_: failed to get thread specific data"
+#define SET_TSD_ERROR "_glthread_: thread failed to set thread specific data"
+
+
+/*
+ * Magic number to determine if a TSD object has been initialized.
+ * Kind of a hack but there doesn't appear to be a better cross-platform
+ * solution.
+ */
+#define INIT_MAGIC 0xff8adc98
+
+
+
+/*
+ * POSIX Threads -- The best way to go if your platform supports them.
+ *                  Solaris >= 2.5 have POSIX threads, IRIX >= 6.4 reportedly
+ *                  has them, and many of the free Unixes now have them.
+ *                  Be sure to use appropriate -mt or -D_REENTRANT type
+ *                  compile flags when building.
+ */
+#ifdef PTHREADS
+
+unsigned long
+u_thread_self(void)
+{
+   return (unsigned long) pthread_self();
+}
+
+
+void
+u_tsd_init(struct u_tsd *tsd)
+{
+   if (pthread_key_create(&tsd->key, NULL/*free*/) != 0) {
+      perror(INIT_TSD_ERROR);
+      exit(-1);
+   }
+   tsd->initMagic = INIT_MAGIC;
+}
+
+
+void *
+u_tsd_get(struct u_tsd *tsd)
+{
+   if (tsd->initMagic != (int) INIT_MAGIC) {
+      u_tsd_init(tsd);
+   }
+   return pthread_getspecific(tsd->key);
+}
+
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr)
+{
+   if (tsd->initMagic != (int) INIT_MAGIC) {
+      u_tsd_init(tsd);
+   }
+   if (pthread_setspecific(tsd->key, ptr) != 0) {
+      perror(SET_TSD_ERROR);
+      exit(-1);
+   }
+}
+
+#endif /* PTHREADS */
+
+
+
+/*
+ * Win32 Threads.  The only available option for Windows 95/NT.
+ * Be sure that you compile using the Multithreaded runtime, otherwise
+ * bad things will happen.
+ */
+#ifdef WIN32_THREADS
+
+static void InsteadOf_exit(int nCode)
+{
+   DWORD dwErr = GetLastError();
+}
+
+unsigned long
+u_thread_self(void)
+{
+   return GetCurrentThreadId();
+}
+
+
+void
+u_tsd_init(struct u_tsd *tsd)
+{
+   tsd->key = TlsAlloc();
+   if (tsd->key == TLS_OUT_OF_INDEXES) {
+      perror(INIT_TSD_ERROR);
+      InsteadOf_exit(-1);
+   }
+   tsd->initMagic = INIT_MAGIC;
+}
+
+
+void
+u_tsd_destroy(struct u_tsd *tsd)
+{
+   if (tsd->initMagic != INIT_MAGIC) {
+      return;
+   }
+   TlsFree(tsd->key);
+   tsd->initMagic = 0x0;
+}
+
+
+void *
+u_tsd_get(struct u_tsd *tsd)
+{
+   if (tsd->initMagic != INIT_MAGIC) {
+      u_tsd_init(tsd);
+   }
+   return TlsGetValue(tsd->key);
+}
+
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr)
+{
+   /* the following code assumes that the struct u_tsd has been initialized
+      to zero at creation */
+   if (tsd->initMagic != INIT_MAGIC) {
+      u_tsd_init(tsd);
+   }
+   if (TlsSetValue(tsd->key, ptr) == 0) {
+      perror(SET_TSD_ERROR);
+      InsteadOf_exit(-1);
+   }
+}
+
+#endif /* WIN32_THREADS */
+
+/*
+ * BeOS threads
+ */
+#ifdef BEOS_THREADS
+
+unsigned long
+u_thread_self(void)
+{
+   return (unsigned long) find_thread(NULL);
+}
+
+void
+u_tsd_init(struct u_tsd *tsd)
+{
+   tsd->key = tls_allocate();
+   tsd->initMagic = INIT_MAGIC;
+}
+
+void *
+u_tsd_get(struct u_tsd *tsd)
+{
+   if (tsd->initMagic != (int) INIT_MAGIC) {
+      u_tsd_init(tsd);
+   }
+   return tls_get(tsd->key);
+}
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr)
+{
+   if (tsd->initMagic != (int) INIT_MAGIC) {
+      u_tsd_init(tsd);
+   }
+   tls_set(tsd->key, ptr);
+}
+
+#endif /* BEOS_THREADS */
+
+
+
+#else  /* THREADS */
+
+
+/*
+ * no-op functions
+ */
+
+unsigned long
+_glthread_GetID(void)
+{
+   return 0;
+}
+
+
+void
+u_tsd_init(struct u_tsd *tsd)
+{
+   (void) tsd;
+}
+
+
+void *
+u_tsd_get(struct u_tsd *tsd)
+{
+   (void) tsd;
+   return NULL;
+}
+
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr)
+{
+   (void) tsd;
+   (void) ptr;
+}
+
+
+#endif /* THREADS */
diff --git a/src/mapi/mapi/u_thread.h b/src/mapi/mapi/u_thread.h
new file mode 100644
index 00000000000..992dbaace96
--- /dev/null
+++ b/src/mapi/mapi/u_thread.h
@@ -0,0 +1,200 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5.2
+ *
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * Thread support for gl dispatch.
+ *
+ * Initial version by John Stone ([email protected]) ([email protected])
+ *                and Christoph Poliwoda ([email protected])
+ * Revised by Keith Whitwell
+ * Adapted for new gl dispatcher by Brian Paul
+ * Modified for use in mapi by Chia-I Wu
+ */
+
+/*
+ * If this file is accidentally included by a non-threaded build,
+ * it should not cause the build to fail, or otherwise cause problems.
+ * In general, it should only be included when needed however.
+ */
+
+#ifndef _U_THREAD_H_
+#define _U_THREAD_H_
+
+#include "u_compiler.h"
+
+#if defined(PTHREADS) || defined(WIN32_THREADS) || defined(BEOS_THREADS)
+#ifndef THREADS
+#define THREADS
+#endif
+#endif
+
+/*
+ * POSIX threads. This should be your choice in the Unix world
+ * whenever possible.  When building with POSIX threads, be sure
+ * to enable any compiler flags which will cause the MT-safe
+ * libc (if one exists) to be used when linking, as well as any
+ * header macros for MT-safe errno, etc.  For Solaris, this is the -mt
+ * compiler flag.  On Solaris with gcc, use -D_REENTRANT to enable
+ * proper compiling for MT-safe libc etc.
+ */
+#if defined(PTHREADS)
+#include <pthread.h> /* POSIX threads headers */
+
+struct u_tsd {
+   pthread_key_t key;
+   int initMagic;
+};
+
+typedef pthread_mutex_t u_mutex;
+
+#define u_mutex_declare_static(name) \
+   static u_mutex name = PTHREAD_MUTEX_INITIALIZER
+
+#define u_mutex_init(name)    pthread_mutex_init(&(name), NULL)
+#define u_mutex_destroy(name) pthread_mutex_destroy(&(name))
+#define u_mutex_lock(name)    (void) pthread_mutex_lock(&(name))
+#define u_mutex_unlock(name)  (void) pthread_mutex_unlock(&(name))
+
+#endif /* PTHREADS */
+
+
+/*
+ * Windows threads. Should work with Windows NT and 95.
+ * IMPORTANT: Link with multithreaded runtime library when THREADS are
+ * used!
+ */
+#ifdef WIN32_THREADS
+#include <windows.h>
+
+struct u_tsd {
+   DWORD key;
+   int   initMagic;
+};
+
+typedef CRITICAL_SECTION u_mutex;
+
+#define u_mutex_declare_static(name) \
+   /* static */ u_mutex name = { 0, 0, 0, 0, 0, 0 }
+
+#define u_mutex_init(name)    InitializeCriticalSection(&name)
+#define u_mutex_destroy(name) DeleteCriticalSection(&name)
+#define u_mutex_lock(name)    EnterCriticalSection(&name)
+#define u_mutex_unlock(name)  LeaveCriticalSection(&name)
+
+#endif /* WIN32_THREADS */
+
+
+/*
+ * BeOS threads. R5.x required.
+ */
+#ifdef BEOS_THREADS
+
+/* Problem with OS.h and this file on haiku */
+#ifndef __HAIKU__
+#include <kernel/OS.h>
+#endif
+
+#include <support/TLS.h>
+
+/* The only two typedefs required here
+ * this is cause of the OS.h problem
+ */
+#ifdef __HAIKU__
+typedef int32 thread_id;
+typedef int32 sem_id;
+#endif
+
+struct u_tsd {
+   int32        key;
+   int          initMagic;
+};
+
+/* Use Benaphore, aka speeder semaphore */
+typedef struct {
+    int32   lock;
+    sem_id  sem;
+} benaphore;
+typedef benaphore u_mutex;
+
+#define u_mutex_declare_static(name) \
+   static u_mutex name = { 0, 0 }
+
+#define u_mutex_init(name) \
+   name.sem = create_sem(0, #name"_benaphore"), \
+   name.lock = 0
+
+#define u_mutex_destroy(name) \
+   delete_sem(name.sem), \
+   name.lock = 0
+
+#define u_mutex_lock(name) \
+   if (name.sem == 0) \
+      u_mutex_init(name); \
+   if (atomic_add(&(name.lock), 1) >= 1) \
+      acquire_sem(name.sem)
+
+#define u_mutex_unlock(name) \
+   if (atomic_add(&(name.lock), -1) > 1) \
+      release_sem(name.sem)
+
+#endif /* BEOS_THREADS */
+
+
+/*
+ * THREADS not defined
+ */
+#ifndef THREADS
+
+struct u_tsd {
+   int initMagic; 
+};
+
+typedef unsigned u_mutex;
+
+#define u_mutex_declare_static(name)   static u_mutex name = 0
+#define u_mutex_init(name)             (void) name
+#define u_mutex_destroy(name)          (void) name
+#define u_mutex_lock(name)             (void) name
+#define u_mutex_unlock(name)           (void) name
+
+#endif /* THREADS */
+
+
+unsigned long
+u_thread_self(void);
+
+void
+u_tsd_init(struct u_tsd *tsd);
+
+void
+u_tsd_destroy(struct u_tsd *tsd); /* WIN32 only */
+
+void *
+u_tsd_get(struct u_tsd *tsd);
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr);
+
+#endif /* _U_THREAD_H_ */