diff options
Diffstat (limited to 'mesalib/src/mesa/glapi/glapi_getproc.c')
| -rw-r--r-- | mesalib/src/mesa/glapi/glapi_getproc.c | 836 |
1 files changed, 0 insertions, 836 deletions
diff --git a/mesalib/src/mesa/glapi/glapi_getproc.c b/mesalib/src/mesa/glapi/glapi_getproc.c deleted file mode 100644 index a6dbf173e..000000000 --- a/mesalib/src/mesa/glapi/glapi_getproc.c +++ /dev/null @@ -1,836 +0,0 @@ -/* - * 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. - */ - -/** - * \file glapi_getproc.c - * - * Code for implementing glXGetProcAddress(), etc. - * This was originally in glapi.c but refactored out. - */ - - -#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/glapioffsets.h" -#include "glapi/glapitable.h" - - -#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 - -#if !defined(DISPATCH_FUNCTION_SIZE) && !defined(XFree86Server) && !defined(XGLServer) -# define NEED_FUNCTION_POINTER -#endif - -/* The code in this file is auto-generated with Python */ -#include "glapi/glprocs.h" - - -/** - * Search the table of static entrypoint functions for the named function - * and return the corresponding glprocs_table_t entry. - */ -static const glprocs_table_t * -find_entry( const char * n ) -{ - GLuint i; - for (i = 0; static_functions[i].Name_offset >= 0; i++) { - const char *testName = gl_string_table + static_functions[i].Name_offset; -#ifdef MANGLE - /* skip the "m" prefix on the name */ - if (strcmp(testName, n + 1) == 0) -#else - if (strcmp(testName, n) == 0) -#endif - { - return &static_functions[i]; - } - } - return NULL; -} - - -/** - * Return dispatch table offset of the named static (built-in) function. - * Return -1 if function not found. - */ -static GLint -get_static_proc_offset(const char *funcName) -{ - const glprocs_table_t * const f = find_entry( funcName ); - if (f) { - return f->Offset; - } - return -1; -} - - -#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(XFree86Server) && !defined(XGLServer) - -/** - * 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; -} - - - -#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 int __glapi_sparc_tls_stub; - extern unsigned long __glapi_sparc_get_dispatch(void); - unsigned int *code = &__glapi_sparc_tls_stub; - unsigned long dispatch = __glapi_sparc_get_dispatch(); -#else - extern unsigned int __glapi_sparc_pthread_stub; - 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 -} - -void -init_glapi_relocs_once( void ) -{ - static pthread_once_t once_control = PTHREAD_ONCE_INIT; - pthread_once( & once_control, init_glapi_relocs ); -} - -#else - -void -init_glapi_relocs_once( void ) { } - -#endif /* defined(PTHREADS) || defined(GLX_USE_TLS) */ - - - -/********************************************************************** - * Extension function management. - */ - - -/** - * Track information about a function added to the GL API. - */ -struct _glapi_function { - /** - * Name of the function. - */ - const char * name; - - - /** - * Text string that describes the types of the parameters passed to the - * named function. Parameter types are converted to characters using the - * following rules: - * - 'i' for \c GLint, \c GLuint, and \c GLenum - * - 'p' for any pointer type - * - 'f' for \c GLfloat and \c GLclampf - * - 'd' for \c GLdouble and \c GLclampd - */ - const char * parameter_signature; - - - /** - * Offset in the dispatch table where the pointer to the real function is - * located. If the driver has not requested that the named function be - * added to the dispatch table, this will have the value ~0. - */ - unsigned dispatch_offset; - - - /** - * Pointer to the dispatch stub for the named function. - * - * \todo - * The semantic of this field should be changed slightly. Currently, it - * is always expected to be non-\c NULL. However, it would be better to - * only allocate the entry-point stub when the application requests the - * function via \c glXGetProcAddress. This would save memory for all the - * functions that the driver exports but that the application never wants - * to call. - */ - _glapi_proc dispatch_stub; -}; - - -static struct _glapi_function ExtEntryTable[MAX_EXTENSION_FUNCS]; -static GLuint NumExtEntryPoints = 0; - -#ifdef USE_SPARC_ASM -extern void __glapi_sparc_icache_flush(unsigned int *); -#endif - -static void -fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset); - -/** - * Generate a dispatch function (entrypoint) which jumps through - * the given slot number (offset) in the current dispatch table. - * We need assembly language in order to accomplish this. - */ -static _glapi_proc -generate_entrypoint(GLuint functionOffset) -{ -#if defined(USE_X86_ASM) - /* 32 is chosen as something of a magic offset. For x86, the dispatch - * at offset 32 is the first one where the offset in the - * "jmp OFFSET*4(%eax)" can't be encoded in a single byte. - */ - const GLubyte * const template_func = gl_dispatch_functions_start - + (DISPATCH_FUNCTION_SIZE * 32); - GLubyte * const code = (GLubyte *) malloc(DISPATCH_FUNCTION_SIZE); - - - if ( code != NULL ) { - (void) memcpy(code, template_func, DISPATCH_FUNCTION_SIZE); - fill_in_entrypoint_offset( (_glapi_proc) code, functionOffset ); - } - - return (_glapi_proc) code; -#elif defined(USE_SPARC_ASM) - -#if defined(PTHREADS) || defined(GLX_USE_TLS) - static const unsigned int template[] = { - 0x07000000, /* sethi %hi(0), %g3 */ - 0x8210000f, /* mov %o7, %g1 */ - 0x40000000, /* call */ - 0x9e100001, /* mov %g1, %o7 */ - }; -#ifdef GLX_USE_TLS - extern unsigned int __glapi_sparc_tls_stub; - unsigned long call_dest = (unsigned long ) &__glapi_sparc_tls_stub; -#else - extern unsigned int __glapi_sparc_pthread_stub; - unsigned long call_dest = (unsigned long ) &__glapi_sparc_pthread_stub; -#endif - unsigned int *code = (unsigned int *) malloc(sizeof(template)); - if (code) { - code[0] = template[0] | (functionOffset & 0x3fffff); - code[1] = template[1]; - __glapi_sparc_icache_flush(&code[0]); - code[2] = template[2] | - (((call_dest - ((unsigned long) &code[2])) - >> 2) & 0x3fffffff); - code[3] = template[3]; - __glapi_sparc_icache_flush(&code[2]); - } - return (_glapi_proc) code; -#endif - -#else - (void) functionOffset; - return NULL; -#endif /* USE_*_ASM */ -} - - -/** - * This function inserts a new dispatch offset into the assembly language - * stub that was generated with the preceeding function. - */ -static void -fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset) -{ -#if defined(USE_X86_ASM) - GLubyte * const code = (GLubyte *) entrypoint; - -#if DISPATCH_FUNCTION_SIZE == 32 - *((unsigned int *)(code + 11)) = 4 * offset; - *((unsigned int *)(code + 22)) = 4 * offset; -#elif DISPATCH_FUNCTION_SIZE == 16 && defined( GLX_USE_TLS ) - *((unsigned int *)(code + 8)) = 4 * offset; -#elif DISPATCH_FUNCTION_SIZE == 16 - *((unsigned int *)(code + 7)) = 4 * offset; -#else -# error Invalid DISPATCH_FUNCTION_SIZE! -#endif - -#elif defined(USE_SPARC_ASM) - unsigned int *code = (unsigned int *) entrypoint; - code[0] &= ~0x3fffff; - code[0] |= (offset * sizeof(void *)) & 0x3fffff; - __glapi_sparc_icache_flush(&code[0]); -#else - - /* an unimplemented architecture */ - (void) entrypoint; - (void) offset; - -#endif /* USE_*_ASM */ -} - - -/** - * 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) -{ - char *copy; - copy = (char*) malloc(strlen(str) + 1); - if (!copy) - return NULL; - strcpy(copy, str); - return copy; -} - - -/** - * Generate new entrypoint - * - * Use a temporary dispatch offset of ~0 (i.e. -1). Later, when the driver - * calls \c _glapi_add_dispatch we'll put in the proper offset. If that - * never happens, and the user calls this function, he'll segfault. That's - * what you get when you try calling a GL function that doesn't really exist. - * - * \param funcName Name of the function to create an entry-point for. - * - * \sa _glapi_add_entrypoint - */ - -static struct _glapi_function * -add_function_name( const char * funcName ) -{ - struct _glapi_function * entry = NULL; - - if (NumExtEntryPoints < MAX_EXTENSION_FUNCS) { - _glapi_proc entrypoint = generate_entrypoint(~0); - if (entrypoint != NULL) { - entry = & ExtEntryTable[NumExtEntryPoints]; - - ExtEntryTable[NumExtEntryPoints].name = str_dup(funcName); - ExtEntryTable[NumExtEntryPoints].parameter_signature = NULL; - ExtEntryTable[NumExtEntryPoints].dispatch_offset = ~0; - ExtEntryTable[NumExtEntryPoints].dispatch_stub = entrypoint; - NumExtEntryPoints++; - } - } - - return entry; -} - - -/** - * Fill-in the dispatch stub for the named function. - * - * This function is intended to be called by a hardware driver. When called, - * a dispatch stub may be created created for the function. A pointer to this - * dispatch function will be returned by glXGetProcAddress. - * - * \param function_names Array of pointers to function names that should - * share a common dispatch offset. - * \param parameter_signature String representing the types of the parameters - * passed to the named function. Parameter types - * are converted to characters using the following - * rules: - * - 'i' for \c GLint, \c GLuint, and \c GLenum - * - 'p' for any pointer type - * - 'f' for \c GLfloat and \c GLclampf - * - 'd' for \c GLdouble and \c GLclampd - * - * \returns - * The offset in the dispatch table of the named function. A pointer to the - * driver's implementation of the named function should be stored at - * \c dispatch_table[\c offset]. Return -1 if error/problem. - * - * \sa glXGetProcAddress - * - * \warning - * This function can only handle up to 8 names at a time. As far as I know, - * the maximum number of names ever associated with an existing GL function is - * 4 (\c glPointParameterfSGIS, \c glPointParameterfEXT, - * \c glPointParameterfARB, and \c glPointParameterf), so this should not be - * too painful of a limitation. - * - * \todo - * Determine whether or not \c parameter_signature should be allowed to be - * \c NULL. It doesn't seem like much of a hardship for drivers to have to - * pass in an empty string. - * - * \todo - * Determine if code should be added to reject function names that start with - * 'glX'. - * - * \bug - * Add code to compare \c parameter_signature with the parameter signature of - * a static function. In order to do that, we need to find a way to \b get - * the parameter signature of a static function. - */ - -PUBLIC int -_glapi_add_dispatch( const char * const * function_names, - const char * parameter_signature ) -{ - static int next_dynamic_offset = _gloffset_FIRST_DYNAMIC; - const char * const real_sig = (parameter_signature != NULL) - ? parameter_signature : ""; - struct _glapi_function * entry[8]; - GLboolean is_static[8]; - unsigned i; - unsigned j; - int offset = ~0; - int new_offset; - - - (void) memset( is_static, 0, sizeof( is_static ) ); - (void) memset( entry, 0, sizeof( entry ) ); - - for ( i = 0 ; function_names[i] != NULL ; i++ ) { - /* Do some trivial validation on the name of the function. - */ - - if (!function_names[i] || function_names[i][0] != 'g' || function_names[i][1] != 'l') - return -1; - - /* Determine if the named function already exists. If the function does - * exist, it must have the same parameter signature as the function - * being added. - */ - - new_offset = get_static_proc_offset(function_names[i]); - if (new_offset >= 0) { - /* FIXME: Make sure the parameter signatures match! How do we get - * FIXME: the parameter signature for static functions? - */ - - if ( (offset != ~0) && (new_offset != offset) ) { - return -1; - } - - is_static[i] = GL_TRUE; - offset = new_offset; - } - - - for ( j = 0 ; j < NumExtEntryPoints ; j++ ) { - if (strcmp(ExtEntryTable[j].name, function_names[i]) == 0) { - /* The offset may be ~0 if the function name was added by - * glXGetProcAddress but never filled in by the driver. - */ - - if (ExtEntryTable[j].dispatch_offset != ~0) { - if (strcmp(real_sig, ExtEntryTable[j].parameter_signature) - != 0) { - return -1; - } - - if ( (offset != ~0) && (ExtEntryTable[j].dispatch_offset != offset) ) { - return -1; - } - - offset = ExtEntryTable[j].dispatch_offset; - } - - entry[i] = & ExtEntryTable[j]; - break; - } - } - } - - if (offset == ~0) { - offset = next_dynamic_offset; - next_dynamic_offset++; - } - - for ( i = 0 ; function_names[i] != NULL ; i++ ) { - if (! is_static[i] ) { - if (entry[i] == NULL) { - entry[i] = add_function_name( function_names[i] ); - if (entry[i] == NULL) { - /* FIXME: Possible memory leak here. - */ - return -1; - } - } - - entry[i]->parameter_signature = str_dup(real_sig); - fill_in_entrypoint_offset(entry[i]->dispatch_stub, offset); - entry[i]->dispatch_offset = offset; - } - } - - 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. - */ -PUBLIC _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; -} - - - -/** - * Do some spot checks to be sure that the dispatch table - * slots are assigned correctly. For debugging only. - */ -void -_glapi_check_table(const struct _glapi_table *table) -{ -#if 0 /* enable this for extra DEBUG */ - { - 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 -} |