GLESv2_ASM := $(addprefix $(MAPI)/es2api/glapi/,$(GLAPI_ASM_SOURCES))
API_SOURCES := $(addprefix $(MAPI)/glapi/,$(GLAPI_SOURCES))
+include $(MAPI)/mapi/sources.mak
+MAPI_GLAPI_SOURCES := $(addprefix $(MAPI)/mapi/,$(MAPI_GLAPI_SOURCES))
+
$(TOP)/$(LIB_DIR)/$(GLESv1_CM_LIB_NAME) : PREFIX = es1
$(TOP)/$(LIB_DIR)/$(GLESv1_CM_LIB_NAME) : NAME = GLESv1_CM
OBJECTS = \
$(notdir $(GLAPI_ASM_SOURCES:%.S=%.o)) \
- $(notdir $(GLAPI_SOURCES:%.c=%.o))
+ $(notdir $(GLAPI_SOURCES:%.c=%.o)) \
+ $(notdir $(MAPI_GLAPI_SOURCES:%.c=%.o))
GLESv1_CM_OBJECTS = $(addprefix es1-,$(OBJECTS))
GLESv2_OBJECTS = $(addprefix es2-,$(OBJECTS))
$(CC) -c $(CFLAGS) $(INCLUDES) -o $@ $<
es1-%.o: $(MAPI)/glapi/%.c
$(CC) -c $(CFLAGS) $(INCLUDES) -o $@ $<
+es1-u_%.o: $(MAPI)/mapi/u_%.c
+ $(CC) -c $(CFLAGS) $(INCLUDES) -DMAPI_GLAPI_CURRENT -o $@ $<
es2-%.o: $(dir $(GLESv2_ASM))%.S
$(CC) -c $(CFLAGS) $(INCLUDES) -o $@ $<
es2-%.o: $(MAPI)/glapi/%.c
$(CC) -c $(CFLAGS) $(INCLUDES) -o $@ $<
+es2-u_%.o: $(MAPI)/mapi/u_%.c
+ $(CC) -c $(CFLAGS) $(INCLUDES) -DMAPI_GLAPI_CURRENT -o $@ $<
default: depend \
$(TOP)/$(LIB_DIR)/$(GLESv1_CM_LIB_NAME) \
depend: Makefile
rm -f depend
touch depend
- $(MKDEP) $(MKDEP_OPTIONS) $(INCLUDES) $(API_SOURCES) \
- $(ES1_API_ASM) $(ES2_API_ASM)
+ $(MKDEP) $(MKDEP_OPTIONS) $(INCLUDES) -DMAPI_GLAPI_CURRENT \
+ $(API_SOURCES) $(ES1_API_ASM) $(ES2_API_ASM)
# Emacs tags
tags:
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
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 $@
$(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
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
#
+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 7.1
- *
- * Copyright (C) 1999-2008 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.
- */
-
-
-/*
- * This file manages the OpenGL API dispatch layer.
- * The dispatch table (struct _glapi_table) is basically just a list
- * of function pointers.
- * There are functions to set/get the current dispatch table for the
- * current thread and to manage registration/dispatch of dynamically
- * added extension functions.
- *
- * It's intended that this file and the other glapi*.[ch] files are
- * flexible enough to be reused in several places: XFree86, DRI-
- * based libGL.so, and perhaps the SGI SI.
- *
- * NOTE: There are no dependencies on Mesa in this code.
- *
- * Versions (API changes):
- * 2000/02/23 - original version for Mesa 3.3 and XFree86 4.0
- * 2001/01/16 - added dispatch override feature for Mesa 3.5
- * 2002/06/28 - added _glapi_set_warning_func(), Mesa 4.1.
- * 2002/10/01 - _glapi_get_proc_address() will now generate new entrypoints
- * itself (using offset ~0). _glapi_add_entrypoint() can be
- * called afterward and it'll fill in the correct dispatch
- * offset. This allows DRI libGL to avoid probing for DRI
- * drivers! No changes to the public glapi interface.
- */
-
-
-
-#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 _glapi_proc __glapi_noop_table[];
-
-
-/**
- * \name Current dispatch and current context control variables
- *
- * Depending on whether or not multithreading is support, and the type of
- * support available, several variables are used to store the current context
- * pointer and the current dispatch table pointer. In the non-threaded case,
- * the variables \c _glapi_Dispatch and \c _glapi_Context are used for this
- * purpose.
- *
- * In the "normal" threaded case, the variables \c _glapi_Dispatch and
- * \c _glapi_Context will be \c NULL if an application is detected as being
- * multithreaded. Single-threaded applications will use \c _glapi_Dispatch
- * and \c _glapi_Context just like the case without any threading support.
- * When \c _glapi_Dispatch and \c _glapi_Context are \c NULL, the thread state
- * data \c _gl_DispatchTSD and \c ContextTSD are used. Drivers and the
- * 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
- * \c _glapi_Context be hardcoded to \c NULL maintains binary compatability
- * between TLS enabled loaders and non-TLS DRI drivers.
- */
-/*@{*/
-#if defined(GLX_USE_TLS)
-
-PUBLIC __thread struct _glapi_table * _glapi_tls_Dispatch
- __attribute__((tls_model("initial-exec")))
- = (struct _glapi_table *) __glapi_noop_table;
-
-PUBLIC __thread void * _glapi_tls_Context
- __attribute__((tls_model("initial-exec")));
-
-PUBLIC const struct _glapi_table *_glapi_Dispatch = NULL;
-
-PUBLIC const void *_glapi_Context = NULL;
-
-#else
-
-#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 */
-
-#endif /* defined(THREADS) */
-
-PUBLIC struct _glapi_table *_glapi_Dispatch = (struct _glapi_table *) __glapi_noop_table;
-
-PUBLIC void *_glapi_Context = NULL;
-
-#endif /* defined(GLX_USE_TLS) */
-/*@}*/
-
-
-
-#if defined(THREADS) && !defined(GLX_USE_TLS)
-
-void
-_glapi_init_multithread(void)
-{
- _glthread_InitTSD(&_gl_DispatchTSD);
- _glthread_InitTSD(&ContextTSD);
-}
-
-void
-_glapi_destroy_multithread(void)
-{
-#ifdef WIN32_THREADS
- _glthread_DestroyTSD(&_gl_DispatchTSD);
- _glthread_DestroyTSD(&ContextTSD);
-#endif
-}
-
-/**
- * Mutex for multithread check.
- */
-#ifdef WIN32_THREADS
-/* _glthread_DECLARE_STATIC_MUTEX is broken on windows. There will be race! */
-#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)
-#endif
-
-/**
- * We should call this periodically from a function such as glXMakeCurrent
- * in order to test if multiple threads are being used.
- */
-PUBLIC void
-_glapi_check_multithread(void)
-{
- static unsigned long knownID;
- static GLboolean firstCall = GL_TRUE;
-
- if (ThreadSafe)
- return;
-
- CHECK_MULTITHREAD_LOCK();
- if (firstCall) {
- _glapi_init_multithread();
-
- knownID = _glthread_GetID();
- firstCall = GL_FALSE;
- }
- else if (knownID != _glthread_GetID()) {
- ThreadSafe = GL_TRUE;
- _glapi_set_dispatch(NULL);
- _glapi_set_context(NULL);
- }
- CHECK_MULTITHREAD_UNLOCK();
-}
-
-#else
-
-void
-_glapi_init_multithread(void) { }
-
-void
-_glapi_destroy_multithread(void) { }
-
-PUBLIC void
-_glapi_check_multithread(void) { }
-
-#endif
-
-
-
-/**
- * Set the current context pointer for this thread.
- * The context pointer is an opaque type which should be cast to
- * void from the real context pointer type.
- */
-PUBLIC void
-_glapi_set_context(void *context)
-{
-#if defined(GLX_USE_TLS)
- _glapi_tls_Context = context;
-#elif defined(THREADS)
- _glthread_SetTSD(&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 *
-_glapi_get_context(void)
-{
-#if defined(GLX_USE_TLS)
- return _glapi_tls_Context;
-#elif defined(THREADS)
- return (ThreadSafe) ? _glthread_GetTSD(&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
-_glapi_set_dispatch(struct _glapi_table *dispatch)
-{
- init_glapi_relocs_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 defined(GLX_USE_TLS)
- _glapi_tls_Dispatch = dispatch;
-#elif defined(THREADS)
- _glthread_SetTSD(&_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 *
-_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;
-#else
- return _glapi_Dispatch;
-#endif
-}
#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
#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);
#include "glapi/glapi.h"
#include "glapi/glapi_priv.h"
+#include "mapi/u_execmem.h"
#ifdef USE_X86_ASM
*/
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 ) {
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];
+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 6.5
- *
- * Copyright (C) 1999-2005 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.
- */
-
-
-/**
- * \file glapi_execmem.c
- *
- * Function for allocating executable memory for dispatch stubs.
- *
- * Copied from main/execmem.c and simplified for dispatch stubs.
- */
-
-
-#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"
-
-
-#if defined(__linux__) || defined(__OpenBSD__) || defined(_NetBSD__) || defined(__sun)
-
-#include <unistd.h>
-#include <sys/mman.h>
-
-#ifdef MESA_SELINUX
-#include <selinux/selinux.h>
-#endif
-
-
-#ifndef MAP_ANONYMOUS
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-
-
-#define EXEC_MAP_SIZE (4*1024)
-
-_glthread_DECLARE_STATIC_MUTEX(exec_mutex);
-
-static unsigned int head = 0;
-
-static unsigned char *exec_mem = NULL;
-
-
-/*
- * Dispatch stubs are of fixed size and never freed. Thus, we do not need to
- * overlay a heap, we just mmap a page and manage through an index.
- */
-
-static int
-init_map(void)
-{
-#ifdef MESA_SELINUX
- if (is_selinux_enabled()) {
- if (!security_get_boolean_active("allow_execmem") ||
- !security_get_boolean_pending("allow_execmem"))
- return 0;
- }
-#endif
-
- if (!exec_mem)
- exec_mem = mmap(NULL, EXEC_MAP_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-
- return (exec_mem != MAP_FAILED);
-}
-
-
-void *
-_glapi_exec_malloc(unsigned int size)
-{
- void *addr = NULL;
-
- _glthread_LOCK_MUTEX(exec_mutex);
-
- if (!init_map())
- goto bail;
-
- /* free space check, assumes no integer overflow */
- if (head + size > EXEC_MAP_SIZE)
- goto bail;
-
- /* allocation, assumes proper addr and size alignement */
- addr = exec_mem + head;
- head += size;
-
-bail:
- _glthread_UNLOCK_MUTEX(exec_mutex);
-
- return addr;
-}
-
-
-#else
-
-void *
-_glapi_exec_malloc(unsigned int size)
-{
- return malloc(size);
-}
-
-
-#endif
* the parameter signature of a static function.
*/
-PUBLIC int
+int
_glapi_add_dispatch( const char * const * function_names,
const char * parameter_signature )
{
/**
* Return offset of entrypoint for named function within dispatch table.
*/
-PUBLIC GLint
+GLint
_glapi_get_proc_offset(const char *funcName)
{
GLint offset;
* 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;
* 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;
_glapi_check_table(const struct _glapi_table *table);
-/* execmem */
-
-extern void *
-_glapi_exec_malloc(unsigned int size);
-
-
/* entrypoint */
extern void
-/*
- * 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 */
-/*
- * 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 (j.stone@acm.org) (johns@cs.umr.edu)
- * and Christoph Poliwoda (poliwoda@volumegraphics.com)
- * 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 */
# 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
--- /dev/null
+# src/mapi/mapi/sources.mak
+
+MAPI_GLAPI_SOURCES = \
+ u_current.c \
+ u_execmem.c \
+ u_thread.c
--- /dev/null
+#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_ */
--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2008 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.
+ */
+
+
+/*
+ * This file manages the OpenGL API dispatch layer.
+ * The dispatch table (struct _glapi_table) is basically just a list
+ * of function pointers.
+ * There are functions to set/get the current dispatch table for the
+ * current thread and to manage registration/dispatch of dynamically
+ * added extension functions.
+ *
+ * It's intended that this file and the other glapi*.[ch] files are
+ * flexible enough to be reused in several places: XFree86, DRI-
+ * based libGL.so, and perhaps the SGI SI.
+ *
+ * NOTE: There are no dependencies on Mesa in this code.
+ *
+ * Versions (API changes):
+ * 2000/02/23 - original version for Mesa 3.3 and XFree86 4.0
+ * 2001/01/16 - added dispatch override feature for Mesa 3.5
+ * 2002/06/28 - added _glapi_set_warning_func(), Mesa 4.1.
+ * 2002/10/01 - _glapi_get_proc_address() will now generate new entrypoints
+ * itself (using offset ~0). _glapi_add_entrypoint() can be
+ * called afterward and it'll fill in the correct dispatch
+ * offset. This allows DRI libGL to avoid probing for DRI
+ * 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"
+
+#else
+
+extern void init_glapi_relocs_once(void);
+extern void (*__glapi_noop_table[])(void);
+
+#define table_noop_array __glapi_noop_table
+#define stub_init_once() init_glapi_relocs_once()
+
+#endif
+
+/**
+ * \name Current dispatch and current context control variables
+ *
+ * Depending on whether or not multithreading is support, and the type of
+ * support available, several variables are used to store the current context
+ * pointer and the current dispatch table pointer. In the non-threaded case,
+ * the variables \c _glapi_Dispatch and \c _glapi_Context are used for this
+ * purpose.
+ *
+ * In the "normal" threaded case, the variables \c _glapi_Dispatch and
+ * \c _glapi_Context will be \c NULL if an application is detected as being
+ * multithreaded. Single-threaded applications will use \c _glapi_Dispatch
+ * and \c _glapi_Context just like the case without any threading support.
+ * When \c _glapi_Dispatch and \c _glapi_Context are \c NULL, the thread state
+ * data \c _gl_DispatchTSD and \c ContextTSD are used. Drivers and the
+ * 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
+ * \c _glapi_Context be hardcoded to \c NULL maintains binary compatability
+ * between TLS enabled loaders and non-TLS DRI drivers.
+ */
+/*@{*/
+#if defined(GLX_USE_TLS)
+
+__thread struct _glapi_table *_glapi_tls_Dispatch
+ __attribute__((tls_model("initial-exec")))
+ = (struct _glapi_table *) table_noop_array;
+
+__thread void * _glapi_tls_Context
+ __attribute__((tls_model("initial-exec")));
+
+const struct _glapi_table *_glapi_Dispatch;
+const void *_glapi_Context;
+
+#else
+
+struct _glapi_table *_glapi_Dispatch =
+ (struct _glapi_table *) table_noop_array;
+void *_glapi_Context;
+
+#ifdef THREADS
+struct u_tsd _gl_DispatchTSD;
+static struct u_tsd ContextTSD;
+static int ThreadSafe;
+#endif /* THREADS */
+
+#endif /* defined(GLX_USE_TLS) */
+/*@}*/
+
+
+void
+_glapi_destroy_multithread(void)
+{
+#if defined(THREADS) && defined(WIN32_THREADS)
+ u_tsd_destroy(&_gl_DispatchTSD);
+ u_tsd_destroy(&ContextTSD);
+#endif
+}
+
+
+#if defined(THREADS) && !defined(GLX_USE_TLS)
+
+static void
+_glapi_init_multithread(void)
+{
+ u_tsd_init(&_gl_DispatchTSD);
+ u_tsd_init(&ContextTSD);
+}
+
+/**
+ * Mutex for multithread check.
+ */
+#ifdef WIN32_THREADS
+/* _glthread_DECLARE_STATIC_MUTEX is broken on windows. There will be race! */
+#define CHECK_MULTITHREAD_LOCK()
+#define CHECK_MULTITHREAD_UNLOCK()
+#else
+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.
+ */
+void
+_glapi_check_multithread(void)
+{
+ static unsigned long knownID;
+ static int firstCall = 1;
+
+ if (ThreadSafe)
+ return;
+
+ CHECK_MULTITHREAD_LOCK();
+ if (firstCall) {
+ _glapi_init_multithread();
+
+ knownID = u_thread_self();
+ firstCall = 0;
+ }
+ else if (knownID != u_thread_self()) {
+ ThreadSafe = 1;
+ _glapi_set_dispatch(NULL);
+ _glapi_set_context(NULL);
+ }
+ CHECK_MULTITHREAD_UNLOCK();
+}
+
+#else
+
+void
+_glapi_check_multithread(void)
+{
+}
+
+#endif
+
+
+
+/**
+ * Set the current context pointer for this thread.
+ * The context pointer is an opaque type which should be cast to
+ * void from the real context pointer type.
+ */
+void
+_glapi_set_context(void *context)
+{
+#if defined(GLX_USE_TLS)
+ _glapi_tls_Context = context;
+#elif defined(THREADS)
+ 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.
+ */
+void *
+_glapi_get_context(void)
+{
+#if defined(GLX_USE_TLS)
+ return _glapi_tls_Context;
+#elif defined(THREADS)
+ 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).
+ */
+void
+_glapi_set_dispatch(struct _glapi_table *dispatch)
+{
+ stub_init_once();
+
+ if (!dispatch)
+ dispatch = (struct _glapi_table *) table_noop_array;
+
+#if defined(GLX_USE_TLS)
+ _glapi_tls_Dispatch = dispatch;
+#elif defined(THREADS)
+ 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.
+ */
+struct _glapi_table *
+_glapi_get_dispatch(void)
+{
+#if defined(GLX_USE_TLS)
+ return _glapi_tls_Dispatch;
+#elif defined(THREADS)
+ return (ThreadSafe)
+ ? (struct _glapi_table *) u_tsd_get(&_gl_DispatchTSD)
+ : _glapi_Dispatch;
+#else
+ return _glapi_Dispatch;
+#endif
+}
--- /dev/null
+#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 */
--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 1999-2005 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.
+ */
+
+
+/**
+ * \file glapi_execmem.c
+ *
+ * Function for allocating executable memory for dispatch stubs.
+ *
+ * Copied from main/execmem.c and simplified for dispatch stubs.
+ */
+
+
+#include "u_compiler.h"
+#include "u_thread.h"
+#include "u_execmem.h"
+
+
+#if defined(__linux__) || defined(__OpenBSD__) || defined(_NetBSD__) || defined(__sun)
+
+#include <unistd.h>
+#include <sys/mman.h>
+
+#ifdef MESA_SELINUX
+#include <selinux/selinux.h>
+#endif
+
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+
+#define EXEC_MAP_SIZE (4*1024)
+
+u_mutex_declare_static(exec_mutex);
+
+static unsigned int head = 0;
+
+static unsigned char *exec_mem = NULL;
+
+
+/*
+ * Dispatch stubs are of fixed size and never freed. Thus, we do not need to
+ * overlay a heap, we just mmap a page and manage through an index.
+ */
+
+static int
+init_map(void)
+{
+#ifdef MESA_SELINUX
+ if (is_selinux_enabled()) {
+ if (!security_get_boolean_active("allow_execmem") ||
+ !security_get_boolean_pending("allow_execmem"))
+ return 0;
+ }
+#endif
+
+ if (!exec_mem)
+ exec_mem = mmap(NULL, EXEC_MAP_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+ return (exec_mem != MAP_FAILED);
+}
+
+
+void *
+u_execmem_alloc(unsigned int size)
+{
+ void *addr = NULL;
+
+ u_mutex_lock(exec_mutex);
+
+ if (!init_map())
+ goto bail;
+
+ /* free space check, assumes no integer overflow */
+ if (head + size > EXEC_MAP_SIZE)
+ goto bail;
+
+ /* allocation, assumes proper addr and size alignement */
+ addr = exec_mem + head;
+ head += size;
+
+bail:
+ u_mutex_unlock(exec_mutex);
+
+ return addr;
+}
+
+
+#else
+
+void *
+u_execmem_alloc(unsigned int size)
+{
+ return malloc(size);
+}
+
+
+#endif
--- /dev/null
+#ifndef _U_EXECMEM_H_
+#define _U_EXECMEM_H_
+
+void *
+u_execmem_alloc(unsigned int size);
+
+#endif /* _U_EXECMEM_H_ */
--- /dev/null
+/*
+ * 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 */
--- /dev/null
+/*
+ * 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 (j.stone@acm.org) (johns@cs.umr.edu)
+ * and Christoph Poliwoda (poliwoda@volumegraphics.com)
+ * 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_ */
projects / mesa.git / commitdiff