diff options
Diffstat (limited to 'src/mesa/glapi/glapi.c')
| -rw-r--r-- | src/mesa/glapi/glapi.c | 348 |
1 files changed, 60 insertions, 288 deletions
diff --git a/src/mesa/glapi/glapi.c b/src/mesa/glapi/glapi.c index 2fa673d307d..13de594aafb 100644 --- a/src/mesa/glapi/glapi.c +++ b/src/mesa/glapi/glapi.c @@ -59,7 +59,6 @@ #endif #include "glapi/glapi.h" -#include "glapi/glapioffsets.h" #include "glapi/glapitable.h" extern _glapi_proc __glapi_noop_table[]; @@ -106,39 +105,23 @@ 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) -#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 - 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) */ @@ -146,6 +129,36 @@ PUBLIC void *_glapi_Context = NULL; +#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 @@ -154,7 +167,6 @@ PUBLIC void *_glapi_Context = NULL; PUBLIC void _glapi_check_multithread(void) { -#if defined(THREADS) && !defined(GLX_USE_TLS) static unsigned long knownID; static GLboolean firstCall = GL_TRUE; @@ -163,9 +175,7 @@ _glapi_check_multithread(void) CHECK_MULTITHREAD_LOCK(); if (firstCall) { - /* initialize TSDs */ - (void) _glthread_GetTSD(&ContextTSD); - (void) _glthread_GetTSD(&_gl_DispatchTSD); + _glapi_init_multithread(); knownID = _glthread_GetID(); firstCall = GL_FALSE; @@ -176,9 +186,21 @@ _glapi_check_multithread(void) _glapi_set_context(NULL); } CHECK_MULTITHREAD_UNLOCK(); -#endif } +#else + +void +_glapi_init_multithread(void) { } + +void +_glapi_destroy_multithread(void) { } + +PUBLIC void +_glapi_check_multithread(void) { } + +#endif + /** @@ -212,198 +234,12 @@ _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 } -#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 */ - - -#if defined(USE_X64_64_ASM) && defined(GLX_USE_TLS) -# define DISPATCH_FUNCTION_SIZE 16 -#elif defined(USE_X86_ASM) -# if defined(THREADS) && !defined(GLX_USE_TLS) -# define DISPATCH_FUNCTION_SIZE 32 -# else -# define DISPATCH_FUNCTION_SIZE 16 -# endif -#endif - -#ifdef USE_SPARC_ASM -#ifdef GLX_USE_TLS -extern unsigned int __glapi_sparc_tls_stub; -#else -extern unsigned int __glapi_sparc_pthread_stub; -#endif -#endif - -#if !defined(DISPATCH_FUNCTION_SIZE) && !defined(XFree86Server) && !defined(XGLServer) -# define NEED_FUNCTION_POINTER -#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 -#ifdef USE_SPARC_ASM - extern void __glapi_sparc_icache_flush(unsigned int *); - static const unsigned int template[] = { -#ifdef GLX_USE_TLS - 0x05000000, /* sethi %hi(_glapi_tls_Dispatch), %g2 */ - 0x8730e00a, /* srl %g3, 10, %g3 */ - 0x8410a000, /* or %g2, %lo(_glapi_tls_Dispatch), %g2 */ -#ifdef __arch64__ - 0xc259c002, /* ldx [%g7 + %g2], %g1 */ - 0xc2584003, /* ldx [%g1 + %g3], %g1 */ -#else - 0xc201c002, /* ld [%g7 + %g2], %g1 */ - 0xc2004003, /* ld [%g1 + %g3], %g1 */ -#endif - 0x81c04000, /* jmp %g1 */ - 0x01000000, /* nop */ -#else -#ifdef __arch64__ - 0x03000000, /* 64-bit 0x00 --> sethi %hh(_glapi_Dispatch), %g1 */ - 0x05000000, /* 64-bit 0x04 --> sethi %lm(_glapi_Dispatch), %g2 */ - 0x82106000, /* 64-bit 0x08 --> or %g1, %hm(_glapi_Dispatch), %g1 */ - 0x8730e00a, /* 64-bit 0x0c --> srl %g3, 10, %g3 */ - 0x83287020, /* 64-bit 0x10 --> sllx %g1, 32, %g1 */ - 0x82004002, /* 64-bit 0x14 --> add %g1, %g2, %g1 */ - 0xc2586000, /* 64-bit 0x18 --> ldx [%g1 + %lo(_glapi_Dispatch)], %g1 */ -#else - 0x03000000, /* 32-bit 0x00 --> sethi %hi(_glapi_Dispatch), %g1 */ - 0x8730e00a, /* 32-bit 0x04 --> srl %g3, 10, %g3 */ - 0xc2006000, /* 32-bit 0x08 --> ld [%g1 + %lo(_glapi_Dispatch)], %g1 */ -#endif - 0x80a06000, /* --> cmp %g1, 0 */ - 0x02800005, /* --> be +4*5 */ - 0x01000000, /* --> nop */ -#ifdef __arch64__ - 0xc2584003, /* 64-bit --> ldx [%g1 + %g3], %g1 */ -#else - 0xc2004003, /* 32-bit --> ld [%g1 + %g3], %g1 */ -#endif - 0x81c04000, /* --> jmp %g1 */ - 0x01000000, /* --> nop */ -#ifdef __arch64__ - 0x9de3bf80, /* 64-bit --> save %sp, -128, %sp */ -#else - 0x9de3bfc0, /* 32-bit --> save %sp, -64, %sp */ -#endif - 0xa0100003, /* --> mov %g3, %l0 */ - 0x40000000, /* --> call _glapi_get_dispatch */ - 0x01000000, /* --> nop */ - 0x82100008, /* --> mov %o0, %g1 */ - 0x86100010, /* --> mov %l0, %g3 */ - 0x10bffff7, /* --> ba -4*9 */ - 0x81e80000, /* --> restore */ -#endif - }; -#ifdef GLX_USE_TLS - extern unsigned long __glapi_sparc_get_dispatch(void); - unsigned int *code = &__glapi_sparc_tls_stub; - unsigned long dispatch = __glapi_sparc_get_dispatch(); -#else - unsigned int *code = &__glapi_sparc_pthread_stub; - unsigned long dispatch = (unsigned long) &_glapi_Dispatch; - unsigned long call_dest = (unsigned long ) &_glapi_get_dispatch; - int idx; -#endif - -#if defined(GLX_USE_TLS) - code[0] = template[0] | (dispatch >> 10); - code[1] = template[1]; - __glapi_sparc_icache_flush(&code[0]); - code[2] = template[2] | (dispatch & 0x3ff); - code[3] = template[3]; - __glapi_sparc_icache_flush(&code[2]); - code[4] = template[4]; - code[5] = template[5]; - __glapi_sparc_icache_flush(&code[4]); - code[6] = template[6]; - __glapi_sparc_icache_flush(&code[6]); -#else -#if defined(__arch64__) - code[0] = template[0] | (dispatch >> (32 + 10)); - code[1] = template[1] | ((dispatch & 0xffffffff) >> 10); - __glapi_sparc_icache_flush(&code[0]); - code[2] = template[2] | ((dispatch >> 32) & 0x3ff); - code[3] = template[3]; - __glapi_sparc_icache_flush(&code[2]); - code[4] = template[4]; - code[5] = template[5]; - __glapi_sparc_icache_flush(&code[4]); - code[6] = template[6] | (dispatch & 0x3ff); - idx = 7; -#else - code[0] = template[0] | (dispatch >> 10); - code[1] = template[1]; - __glapi_sparc_icache_flush(&code[0]); - code[2] = template[2] | (dispatch & 0x3ff); - idx = 3; -#endif - code[idx + 0] = template[idx + 0]; - __glapi_sparc_icache_flush(&code[idx - 1]); - code[idx + 1] = template[idx + 1]; - code[idx + 2] = template[idx + 2]; - __glapi_sparc_icache_flush(&code[idx + 1]); - code[idx + 3] = template[idx + 3]; - code[idx + 4] = template[idx + 4]; - __glapi_sparc_icache_flush(&code[idx + 3]); - code[idx + 5] = template[idx + 5]; - code[idx + 6] = template[idx + 6]; - __glapi_sparc_icache_flush(&code[idx + 5]); - code[idx + 7] = template[idx + 7]; - code[idx + 8] = template[idx + 8] | - (((call_dest - ((unsigned long) &code[idx + 8])) - >> 2) & 0x3fffffff); - __glapi_sparc_icache_flush(&code[idx + 7]); - code[idx + 9] = template[idx + 9]; - code[idx + 10] = template[idx + 10]; - __glapi_sparc_icache_flush(&code[idx + 9]); - code[idx + 11] = template[idx + 11]; - code[idx + 12] = template[idx + 12]; - __glapi_sparc_icache_flush(&code[idx + 11]); - code[idx + 13] = template[idx + 13]; - __glapi_sparc_icache_flush(&code[idx + 13]); -#endif -#endif -} -#endif /* defined(PTHREADS) || defined(GLX_USE_TLS) */ /** @@ -414,17 +250,15 @@ init_glapi_relocs( void ) PUBLIC void _glapi_set_dispatch(struct _glapi_table *dispatch) { -#if defined(PTHREADS) || defined(GLX_USE_TLS) - static pthread_once_t once_control = PTHREAD_ONCE_INIT; - pthread_once( & once_control, init_glapi_relocs ); -#endif + init_glapi_relocs_once(); - 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 @@ -434,9 +268,9 @@ _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 } @@ -447,17 +281,15 @@ _glapi_set_dispatch(struct _glapi_table *dispatch) PUBLIC 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; } @@ -488,75 +320,15 @@ _glapi_get_dispatch_table_size(void) * Intended for debugging purposes. */ void -_glapi_check_table(const struct _glapi_table *table) +_glapi_check_table_not_null(const struct _glapi_table *table) { -#if 0 /* Enable this for extra 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 |