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Use new _glapi_proc typedef instead of void * for function pointers.

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Misc clean-ups in glapi.c
This commit is contained in:
Brian Paul
2004-11-27 03:51:11 +00:00
parent 1136412013
commit 767e15a78a
6 changed files with 73 additions and 58 deletions
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109
src/mesa/glapi/glapi.c
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@@ -1,9 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 4.1
* Version: 6.3
*
* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2003 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"),
@@ -112,9 +111,9 @@ warn(void)
return 0
#define DISPATCH_TABLE_NAME __glapi_noop_table
#define UNUSED_TABLE_NAME __usused_noop_functions
#define UNUSED_TABLE_NAME __unused_noop_functions
#define TABLE_ENTRY(name) (void *) NoOp##name
#define TABLE_ENTRY(name) (_glapi_proc) NoOp##name
static int NoOpUnused(void)
{
@@ -169,9 +168,9 @@ static _glthread_TSD ContextTSD; /**< Per-thread context pointer */
#define DISPATCH_TABLE_NAME __glapi_threadsafe_table
#define UNUSED_TABLE_NAME __usused_threadsafe_functions
#define UNUSED_TABLE_NAME __unused_threadsafe_functions
#define TABLE_ENTRY(name) (void *) gl##name
#define TABLE_ENTRY(name) (_glapi_proc) gl##name
static int glUnused(void)
{
@@ -201,7 +200,8 @@ static GLboolean DispatchOverride = GL_FALSE;
/* strdup() is actually not a standard ANSI C or POSIX routine.
/**
* strdup() is actually not a standard ANSI C or POSIX routine.
* Irix will not define it if ANSI mode is in effect.
*/
static char *
@@ -217,7 +217,7 @@ str_dup(const char *str)
/*
/**
* We should call this periodically from a function such as glXMakeCurrent
* in order to test if multiple threads are being used.
*/
@@ -246,7 +246,7 @@ _glapi_check_multithread(void)
/*
/**
* 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.
@@ -254,7 +254,9 @@ _glapi_check_multithread(void)
void
_glapi_set_context(void *context)
{
(void) __unused_noop_functions; /* silence a warning */
#if defined(THREADS)
(void) __unused_threadsafe_functions; /* silence a warning */
_glthread_SetTSD(&ContextTSD, context);
_glapi_Context = (ThreadSafe) ? NULL : context;
#else
@@ -264,7 +266,7 @@ _glapi_set_context(void *context)
/*
/**
* 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.
@@ -286,7 +288,7 @@ _glapi_get_context(void)
/*
/**
* Set the global or per-thread dispatch table pointer.
*/
void
@@ -334,7 +336,7 @@ _glapi_set_dispatch(struct _glapi_table *dispatch)
/*
/**
* Return pointer to current dispatch table for calling thread.
*/
struct _glapi_table *
@@ -450,13 +452,6 @@ _glapi_get_override_dispatch(int layer)
}
struct name_address_offset {
const char *Name;
GLvoid *Address;
GLuint Offset;
};
#if !defined( USE_X86_ASM )
#define NEED_FUNCTION_POINTER
#endif
@@ -465,6 +460,10 @@ struct name_address_offset {
#include "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 )
{
@@ -481,7 +480,8 @@ find_entry( const char * n )
return NULL;
}
/*
/**
* Return dispatch table offset of the named static (built-in) function.
* Return -1 if function not found.
*/
@@ -507,7 +507,7 @@ extern const GLubyte gl_dispatch_functions_start[];
# endif
/*
/**
* Return dispatch function address the named static (built-in) function.
* Return NULL if function not found.
*/
@@ -528,11 +528,11 @@ get_static_proc_address(const char *funcName)
#else
/*
* Return dispatch function address the named static (built-in) function.
* Return NULL if function not found.
/**
* Return pointer to the named static (built-in) function.
* \return NULL if function not found.
*/
static const GLvoid *
static const _glapi_proc
get_static_proc_address(const char *funcName)
{
const glprocs_table_t * const f = find_entry( funcName );
@@ -542,6 +542,10 @@ get_static_proc_address(const char *funcName)
#endif /* USE_X86_ASM */
/**
* 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 )
{
@@ -568,7 +572,7 @@ get_static_proc_name( GLuint offset )
/*
* The disptach table size (number of entries) is the sizeof the
* The dispatch table size (number of entries) is the size of the
* _glapi_table struct plus the number of dynamic entries we can add.
* The extra slots can be filled in by DRI drivers that register new extension
* functions.
@@ -576,6 +580,13 @@ get_static_proc_name( GLuint offset )
#define DISPATCH_TABLE_SIZE (sizeof(struct _glapi_table) / sizeof(void *) + MAX_EXTENSION_FUNCS)
struct name_address_offset {
const char *Name;
_glapi_proc Address;
GLuint Offset;
};
static struct name_address_offset ExtEntryTable[MAX_EXTENSION_FUNCS];
static GLuint NumExtEntryPoints = 0;
@@ -583,12 +594,12 @@ static GLuint NumExtEntryPoints = 0;
extern void __glapi_sparc_icache_flush(unsigned int *);
#endif
/*
/**
* 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 void *
static _glapi_proc
generate_entrypoint(GLuint functionOffset)
{
#if defined(USE_X86_ASM)
@@ -631,7 +642,7 @@ generate_entrypoint(GLuint functionOffset)
*(unsigned int *)(code + 0x10) = (unsigned int)_glapi_get_dispatch - next_insn;
*(unsigned int *)(code + 0x16) = (unsigned int)functionOffset * 4;
}
return code;
return (_glapi_proc) code;
#elif defined(USE_SPARC_ASM)
#if (defined(__sparc_v9__) && (!defined(__linux__) || defined(__linux_sparc_64__)))
@@ -680,7 +691,7 @@ generate_entrypoint(GLuint functionOffset)
__glapi_sparc_icache_flush(&code[2]);
#endif
}
return code;
return (_glapi_proc) code;
#else
(void) functionOffset;
return NULL;
@@ -688,12 +699,12 @@ generate_entrypoint(GLuint functionOffset)
}
/*
/**
* 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(void *entrypoint, GLuint offset)
fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset)
{
#if defined(USE_X86_ASM)
@@ -727,7 +738,7 @@ fill_in_entrypoint_offset(void *entrypoint, GLuint offset)
}
/*
/**
* Add a new extension function entrypoint.
* Return: GL_TRUE = success or GL_FALSE = failure
*/
@@ -783,7 +794,7 @@ _glapi_add_entrypoint(const char *funcName, GLuint offset)
return GL_FALSE;
}
else {
void *entrypoint = generate_entrypoint(offset);
_glapi_proc entrypoint = generate_entrypoint(offset);
if (!entrypoint)
return GL_FALSE; /* couldn't generate assembly */
@@ -801,7 +812,7 @@ _glapi_add_entrypoint(const char *funcName, GLuint offset)
}
/*
/**
* Return offset of entrypoint for named function within dispatch table.
*/
GLint
@@ -821,10 +832,12 @@ _glapi_get_proc_offset(const char *funcName)
/*
* Return entrypoint for named function.
/**
* 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.
*/
const GLvoid *
const _glapi_proc
_glapi_get_proc_address(const char *funcName)
{
GLuint i;
@@ -846,7 +859,7 @@ _glapi_get_proc_address(const char *funcName)
/* search static functions */
{
const GLvoid *func = get_static_proc_address(funcName);
const _glapi_proc func = get_static_proc_address(funcName);
if (func)
return func;
}
@@ -858,7 +871,7 @@ _glapi_get_proc_address(const char *funcName)
* when you try calling a GL function that doesn't really exist.
*/
if (NumExtEntryPoints < MAX_EXTENSION_FUNCS) {
GLvoid *entrypoint = generate_entrypoint(~0);
_glapi_proc entrypoint = generate_entrypoint(~0);
if (!entrypoint)
return GL_FALSE;
@@ -877,7 +890,7 @@ _glapi_get_proc_address(const char *funcName)
/*
/**
* Return the name of the function at the given dispatch offset.
* This is only intended for debugging.
*/
@@ -904,7 +917,7 @@ _glapi_get_proc_name(GLuint offset)
/*
/**
* Return size of dispatch table struct as number of functions (or
* slots).
*/
@@ -916,7 +929,7 @@ _glapi_get_dispatch_table_size(void)
/*
/**
* Get API dispatcher version string.
*/
const char *
@@ -927,7 +940,7 @@ _glapi_get_version(void)
/*
/**
* Make sure there are no NULL pointers in the given dispatch table.
* Intended for debugging purposes.
*/
@@ -993,7 +1006,7 @@ _glapi_check_table(const struct _glapi_table *table)
GLuint offset = (secondaryColor3fFunc - (char *) table) / sizeof(void *);
assert(secondaryColor3fOffset == _gloffset_SecondaryColor3fEXT);
assert(secondaryColor3fOffset == offset);
assert(_glapi_get_proc_address("glSecondaryColor3fEXT") == (void *) &glSecondaryColor3fEXT);
assert(_glapi_get_proc_address("glSecondaryColor3fEXT") == (_glapi_proc) &glSecondaryColor3fEXT);
}
{
GLuint pointParameterivOffset = _glapi_get_proc_offset("glPointParameterivNV");
@@ -1001,7 +1014,7 @@ _glapi_check_table(const struct _glapi_table *table)
GLuint offset = (pointParameterivFunc - (char *) table) / sizeof(void *);
assert(pointParameterivOffset == _gloffset_PointParameterivNV);
assert(pointParameterivOffset == offset);
assert(_glapi_get_proc_address("glPointParameterivNV") == (void *) &glPointParameterivNV);
assert(_glapi_get_proc_address("glPointParameterivNV") == &glPointParameterivNV);
}
{
GLuint setFenceOffset = _glapi_get_proc_offset("glSetFenceNV");
@@ -1009,7 +1022,7 @@ _glapi_check_table(const struct _glapi_table *table)
GLuint offset = (setFenceFunc - (char *) table) / sizeof(void *);
assert(setFenceOffset == _gloffset_SetFenceNV);
assert(setFenceOffset == offset);
assert(_glapi_get_proc_address("glSetFenceNV") == (void *) &glSetFenceNV);
assert(_glapi_get_proc_address("glSetFenceNV") == &glSetFenceNV);
}
#else
(void) table;