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Diffstat (limited to 'xorg-server/glx/glapi.c')
-rw-r--r--xorg-server/glx/glapi.c407
1 files changed, 85 insertions, 322 deletions
diff --git a/xorg-server/glx/glapi.c b/xorg-server/glx/glapi.c
index 9cd703030..4d98344e1 100644
--- a/xorg-server/glx/glapi.c
+++ b/xorg-server/glx/glapi.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 6.5
+ * Version: 7.1
*
- * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ * 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"),
@@ -71,15 +71,20 @@
#ifdef DEBUG
#include <assert.h>
#endif
+#include <unistd.h>
+#define str_dup strdup
+#define INSERVER
#include "glapi.h"
#include "glapioffsets.h"
+#include "GL/gl.h"
+#include "GL/glext.h"
#include "glapitable.h"
/***** BEGIN NO-OP DISPATCH *****/
static GLboolean WarnFlag = GL_FALSE;
-static _glapi_warning_func warning_func;
+static _glapi_proc warning_func;
#if defined(PTHREADS) || defined(GLX_USE_TLS)
static void init_glapi_relocs(void);
@@ -97,15 +102,6 @@ _glapi_noop_enable_warnings(GLboolean enable)
WarnFlag = enable;
}
-/*
- * Register a callback function for reporting errors.
- */
-PUBLIC void
-_glapi_set_warning_func( _glapi_warning_func func )
-{
- warning_func = func;
-}
-
static GLboolean
warn(void)
{
@@ -131,16 +127,9 @@ warn(void)
#define F NULL
-#define DISPATCH(func, args, msg) \
- if (warn()) { \
- warning_func(NULL, "GL User Error: called without context: %s", #func); \
- }
+#define DISPATCH(func, args, msg)
-#define RETURN_DISPATCH(func, args, msg) \
- if (warn()) { \
- warning_func(NULL, "GL User Error: called without context: %s", #func); \
- } \
- return 0
+#define RETURN_DISPATCH(func, args, msg) return 0
#define DISPATCH_TABLE_NAME __glapi_noop_table
#define UNUSED_TABLE_NAME __unused_noop_functions
@@ -149,9 +138,6 @@ warn(void)
static GLint NoOpUnused(void)
{
- if (warn()) {
- warning_func(NULL, "GL User Error: calling extension function without a current context\n");
- }
return 0;
}
@@ -202,6 +188,7 @@ 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
@@ -209,72 +196,91 @@ PUBLIC const void *_glapi_Context = NULL;
#if defined(THREADS)
static GLboolean ThreadSafe = GL_FALSE; /**< In thread-safe mode? */
+
_glthread_TSD _gl_DispatchTSD; /**< Per-thread dispatch pointer */
-static _glthread_TSD ContextTSD; /**< Per-thread context pointer */
-#if defined(WIN32_THREADS)
-void FreeTSD(_glthread_TSD *p);
-void FreeAllTSD(void)
-{
- FreeTSD(&_gl_DispatchTSD);
- FreeTSD(&ContextTSD);
-}
-#endif /* defined(WIN32_THREADS) */
+static _glthread_TSD ContextTSD; /**< Per-thread context pointer */
#endif /* defined(THREADS) */
-PUBLIC struct _glapi_table *_glapi_Dispatch =
- (struct _glapi_table *) __glapi_noop_table;
+PUBLIC struct _glapi_table *_glapi_Dispatch = (struct _glapi_table *) __glapi_noop_table;
+
PUBLIC void *_glapi_Context = NULL;
#endif /* defined(GLX_USE_TLS) */
/*@}*/
-/**
- * strdup() is actually not a standard ANSI C or POSIX routine.
- * Irix will not define it if ANSI mode is in effect.
- */
-static char *
-str_dup(const char *str)
+
+#if defined(THREADS) && !defined(GLX_USE_TLS)
+
+void
+_glapi_init_multithread(void)
{
- char *copy;
- copy = (char*) malloc(strlen(str) + 1);
- if (!copy)
- return NULL;
- strcpy(copy, str);
- return copy;
+ _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)
{
-#if defined(THREADS) && !defined(GLX_USE_TLS)
- if (!ThreadSafe) {
- static unsigned long knownID;
- static GLboolean firstCall = GL_TRUE;
- if (firstCall) {
- knownID = _glthread_GetID();
- firstCall = GL_FALSE;
- }
- else if (knownID != _glthread_GetID()) {
- ThreadSafe = GL_TRUE;
- _glapi_set_dispatch(NULL);
- _glapi_set_context(NULL);
- }
+ 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 (!_glapi_get_dispatch()) {
- /* make sure that this thread's dispatch pointer isn't null */
+ else if (knownID != _glthread_GetID()) {
+ ThreadSafe = GL_TRUE;
_glapi_set_dispatch(NULL);
+ _glapi_set_context(NULL);
}
-#endif
+ CHECK_MULTITHREAD_UNLOCK();
}
+#else
+
+void
+_glapi_init_multithread(void) { }
+
+void
+_glapi_destroy_multithread(void) { }
+
+PUBLIC void
+_glapi_check_multithread(void) { }
+
+#endif
@@ -283,10 +289,9 @@ _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)
{
- (void) __unused_noop_functions; /* silence a warning */
#if defined(GLX_USE_TLS)
_glapi_tls_Context = context;
#elif defined(THREADS)
@@ -304,18 +309,13 @@ _glapi_set_context(void *context)
* 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)
- if (ThreadSafe) {
- return _glthread_GetTSD(&ContextTSD);
- }
- else {
- return _glapi_Context;
- }
+ return (ThreadSafe) ? _glthread_GetTSD(&ContextTSD) : _glapi_Context;
#else
return _glapi_Context;
#endif
@@ -328,7 +328,7 @@ _glapi_get_context(void)
* 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)
{
#if defined(PTHREADS) || defined(GLX_USE_TLS)
@@ -336,12 +336,13 @@ _glapi_set_dispatch(struct _glapi_table *dispatch)
pthread_once( & once_control, init_glapi_relocs );
#endif
- if (!dispatch) {
+ 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
@@ -351,9 +352,9 @@ _glapi_set_dispatch(struct _glapi_table *dispatch)
#elif defined(THREADS)
_glthread_SetTSD(&_gl_DispatchTSD, (void *) dispatch);
_glapi_Dispatch = (ThreadSafe) ? NULL : dispatch;
-#else /*THREADS*/
+#else
_glapi_Dispatch = dispatch;
-#endif /*THREADS*/
+#endif
}
@@ -361,20 +362,18 @@ _glapi_set_dispatch(struct _glapi_table *dispatch)
/**
* Return pointer to current dispatch table for calling thread.
*/
-PUBLIC struct _glapi_table *
+struct _glapi_table *
_glapi_get_dispatch(void)
{
- struct _glapi_table * api;
#if defined(GLX_USE_TLS)
- api = _glapi_tls_Dispatch;
+ return _glapi_tls_Dispatch;
#elif defined(THREADS)
- api = (ThreadSafe)
+ return (ThreadSafe)
? (struct _glapi_table *) _glthread_GetTSD(&_gl_DispatchTSD)
: _glapi_Dispatch;
#else
- api = _glapi_Dispatch;
+ return _glapi_Dispatch;
#endif
- return api;
}
@@ -435,67 +434,6 @@ get_static_proc_offset(const char *funcName)
}
-#if !defined(XFree86Server) && !defined(XGLServer)
-#ifdef USE_X86_ASM
-
-#if defined( GLX_USE_TLS )
-extern GLubyte gl_dispatch_functions_start[];
-extern GLubyte gl_dispatch_functions_end[];
-#else
-extern const GLubyte gl_dispatch_functions_start[];
-#endif
-
-#endif /* USE_X86_ASM */
-
-
-/**
- * Return dispatch function address for the named static (built-in) function.
- * Return NULL if function not found.
- */
-static _glapi_proc
-get_static_proc_address(const char *funcName)
-{
- const glprocs_table_t * const f = find_entry( funcName );
- if (f) {
-#if defined(DISPATCH_FUNCTION_SIZE) && defined(GLX_INDIRECT_RENDERING)
- return (f->Address == NULL)
- ? (_glapi_proc) (gl_dispatch_functions_start
- + (DISPATCH_FUNCTION_SIZE * f->Offset))
- : f->Address;
-#elif defined(DISPATCH_FUNCTION_SIZE)
- return (_glapi_proc) (gl_dispatch_functions_start
- + (DISPATCH_FUNCTION_SIZE * f->Offset));
-#else
- return f->Address;
-#endif
- }
- else {
- return NULL;
- }
-}
-
-#endif /* !defined(XFree86Server) && !defined(XGLServer) */
-
-
-
-/**
- * Return the name of the function at the given offset in the dispatch
- * table. For debugging only.
- */
-static const char *
-get_static_proc_name( GLuint offset )
-{
- GLuint i;
- for (i = 0; static_functions[i].Name_offset >= 0; i++) {
- if (static_functions[i].Offset == offset) {
- return gl_string_table + static_functions[i].Name_offset;
- }
- }
- return NULL;
-}
-
-
-
/**********************************************************************
* Extension function management.
*/
@@ -871,207 +809,32 @@ _glapi_add_dispatch( const char * const * function_names,
return offset;
}
-
-/**
- * Return offset of entrypoint for named function within dispatch table.
- */
-PUBLIC GLint
-_glapi_get_proc_offset(const char *funcName)
-{
- /* search extension functions first */
- GLuint i;
- for (i = 0; i < NumExtEntryPoints; i++) {
- if (strcmp(ExtEntryTable[i].name, funcName) == 0) {
- return ExtEntryTable[i].dispatch_offset;
- }
- }
- /* search static functions */
- return get_static_proc_offset(funcName);
-}
-
-
-
-/**
- * Return pointer to the named function. If the function name isn't found
- * in the name of static functions, try generating a new API entrypoint on
- * the fly with assembly language.
- */
-_glapi_proc
-_glapi_get_proc_address(const char *funcName)
-{
- struct _glapi_function * entry;
- GLuint i;
-
-#ifdef MANGLE
- if (funcName[0] != 'm' || funcName[1] != 'g' || funcName[2] != 'l')
- return NULL;
-#else
- if (funcName[0] != 'g' || funcName[1] != 'l')
- return NULL;
-#endif
-
- /* search extension functions first */
- for (i = 0; i < NumExtEntryPoints; i++) {
- if (strcmp(ExtEntryTable[i].name, funcName) == 0) {
- return ExtEntryTable[i].dispatch_stub;
- }
- }
-
-#if !defined( XFree86Server ) && !defined( XGLServer )
- /* search static functions */
- {
- const _glapi_proc func = get_static_proc_address(funcName);
- if (func)
- return func;
- }
-#endif /* !defined( XFree86Server ) */
-
- entry = add_function_name(funcName);
- return (entry == NULL) ? NULL : entry->dispatch_stub;
-}
-
-
-
-/**
- * Return the name of the function at the given dispatch offset.
- * This is only intended for debugging.
- */
-const char *
-_glapi_get_proc_name(GLuint offset)
-{
- GLuint i;
- const char * n;
-
- /* search built-in functions */
- n = get_static_proc_name(offset);
- if ( n != NULL ) {
- return n;
- }
-
- /* search added extension functions */
- for (i = 0; i < NumExtEntryPoints; i++) {
- if (ExtEntryTable[i].dispatch_offset == offset) {
- return ExtEntryTable[i].name;
- }
- }
- return NULL;
-}
-
-
-
/**
* Return size of dispatch table struct as number of functions (or
* slots).
*/
-PUBLIC GLuint
+GLuint
_glapi_get_dispatch_table_size(void)
{
return DISPATCH_TABLE_SIZE;
}
-
/**
* Make sure there are no NULL pointers in the given dispatch table.
* Intended for debugging purposes.
*/
void
-_glapi_check_table(const struct _glapi_table *table)
+_glapi_check_table_not_null(const struct _glapi_table *table)
{
-#ifdef DEBUG
+#if 0 /* enable this for extra DEBUG */
const GLuint entries = _glapi_get_dispatch_table_size();
const void **tab = (const void **) table;
GLuint i;
for (i = 1; i < entries; i++) {
assert(tab[i]);
}
-
- /* Do some spot checks to be sure that the dispatch table
- * slots are assigned correctly.
- */
- {
- GLuint BeginOffset = _glapi_get_proc_offset("glBegin");
- char *BeginFunc = (char*) &table->Begin;
- GLuint offset = (BeginFunc - (char *) table) / sizeof(void *);
- assert(BeginOffset == _gloffset_Begin);
- assert(BeginOffset == offset);
- }
- {
- GLuint viewportOffset = _glapi_get_proc_offset("glViewport");
- char *viewportFunc = (char*) &table->Viewport;
- GLuint offset = (viewportFunc - (char *) table) / sizeof(void *);
- assert(viewportOffset == _gloffset_Viewport);
- assert(viewportOffset == offset);
- }
- {
- GLuint VertexPointerOffset = _glapi_get_proc_offset("glVertexPointer");
- char *VertexPointerFunc = (char*) &table->VertexPointer;
- GLuint offset = (VertexPointerFunc - (char *) table) / sizeof(void *);
- assert(VertexPointerOffset == _gloffset_VertexPointer);
- assert(VertexPointerOffset == offset);
- }
- {
- GLuint ResetMinMaxOffset = _glapi_get_proc_offset("glResetMinmax");
- char *ResetMinMaxFunc = (char*) &table->ResetMinmax;
- GLuint offset = (ResetMinMaxFunc - (char *) table) / sizeof(void *);
- assert(ResetMinMaxOffset == _gloffset_ResetMinmax);
- assert(ResetMinMaxOffset == offset);
- }
- {
- GLuint blendColorOffset = _glapi_get_proc_offset("glBlendColor");
- char *blendColorFunc = (char*) &table->BlendColor;
- GLuint offset = (blendColorFunc - (char *) table) / sizeof(void *);
- assert(blendColorOffset == _gloffset_BlendColor);
- assert(blendColorOffset == offset);
- }
- {
- GLuint secondaryColor3fOffset = _glapi_get_proc_offset("glSecondaryColor3fEXT");
- char *secondaryColor3fFunc = (char*) &table->SecondaryColor3fEXT;
- GLuint offset = (secondaryColor3fFunc - (char *) table) / sizeof(void *);
- assert(secondaryColor3fOffset == _gloffset_SecondaryColor3fEXT);
- assert(secondaryColor3fOffset == offset);
- }
- {
- GLuint pointParameterivOffset = _glapi_get_proc_offset("glPointParameterivNV");
- char *pointParameterivFunc = (char*) &table->PointParameterivNV;
- GLuint offset = (pointParameterivFunc - (char *) table) / sizeof(void *);
- assert(pointParameterivOffset == _gloffset_PointParameterivNV);
- assert(pointParameterivOffset == offset);
- }
- {
- GLuint setFenceOffset = _glapi_get_proc_offset("glSetFenceNV");
- char *setFenceFunc = (char*) &table->SetFenceNV;
- GLuint offset = (setFenceFunc - (char *) table) / sizeof(void *);
- assert(setFenceOffset == _gloffset_SetFenceNV);
- assert(setFenceOffset == offset);
- }
#else
(void) table;
#endif
}
-
-
-#if defined(PTHREADS) || defined(GLX_USE_TLS)
-/**
- * Perform platform-specific GL API entry-point fixups.
- */
-static void
-init_glapi_relocs( void )
-{
-#if defined(USE_X86_ASM) && defined(GLX_USE_TLS) && !defined(GLX_X86_READONLY_TEXT)
- extern unsigned long _x86_get_dispatch(void);
- char run_time_patch[] = {
- 0x65, 0xa1, 0, 0, 0, 0 /* movl %gs:0,%eax */
- };
- GLuint *offset = (GLuint *) &run_time_patch[2]; /* 32-bits for x86/32 */
- const GLubyte * const get_disp = (const GLubyte *) run_time_patch;
- GLubyte * curr_func = (GLubyte *) gl_dispatch_functions_start;
-
- *offset = _x86_get_dispatch();
- while ( curr_func != (GLubyte *) gl_dispatch_functions_end ) {
- (void) memcpy( curr_func, get_disp, sizeof(run_time_patch));
- curr_func += DISPATCH_FUNCTION_SIZE;
- }
-#endif
-}
-#endif /* defined(PTHREADS) || defined(GLX_USE_TLS) */