static int LoadProjLibrary()
{
CPLMutexHolderD( &hPROJMutex );
static int bTriedToLoad = FALSE;
const char *pszLibName;
if( bTriedToLoad )
return( pfn_pj_transform != NULL );
bTriedToLoad = TRUE;
pszLibName = GetProjLibraryName();
#ifdef PROJ_STATIC
pfn_pj_init = pj_init;
pfn_pj_init_plus = pj_init_plus;
pfn_pj_free = pj_free;
pfn_pj_transform = pj_transform;
pfn_pj_get_errno_ref = (int *(*)(void)) pj_get_errno_ref;
pfn_pj_strerrno = pj_strerrno;
pfn_pj_dalloc = pj_dalloc;
#if PJ_VERSION >= 446
pfn_pj_get_def = pj_get_def;
#endif
#if PJ_VERSION >= 480
pfn_pj_ctx_alloc = pj_ctx_alloc;
pfn_pj_ctx_free = pj_ctx_free;
pfn_pj_init_plus_ctx = pj_init_plus_ctx;
pfn_pj_ctx_get_errno = pj_ctx_get_errno;
#endif
#else
CPLPushErrorHandler( CPLQuietErrorHandler );
pfn_pj_init = (projPJ (*)(int, char**)) CPLGetSymbol( pszLibName,
"pj_init" );
CPLPopErrorHandler();
if( pfn_pj_init == NULL )
return( FALSE );
pfn_pj_init_plus = (projPJ (*)(const char *))
CPLGetSymbol( pszLibName, "pj_init_plus" );
pfn_pj_free = (void (*)(projPJ))
CPLGetSymbol( pszLibName, "pj_free" );
pfn_pj_transform = (int (*)(projPJ,projPJ,long,int,double*,
double*,double*))
CPLGetSymbol( pszLibName, "pj_transform" );
pfn_pj_get_errno_ref = (int *(*)(void))
CPLGetSymbol( pszLibName, "pj_get_errno_ref" );
pfn_pj_strerrno = (char *(*)(int))
CPLGetSymbol( pszLibName, "pj_strerrno" );
CPLPushErrorHandler( CPLQuietErrorHandler );
pfn_pj_get_def = (char *(*)(projPJ,int))
CPLGetSymbol( pszLibName, "pj_get_def" );
pfn_pj_dalloc = (void (*)(void*))
CPLGetSymbol( pszLibName, "pj_dalloc" );
/* PROJ 4.8.0 symbols */
pfn_pj_ctx_alloc = (projCtx (*)( void ))
CPLGetSymbol( pszLibName, "pj_ctx_alloc" );
pfn_pj_ctx_free = (void (*)( projCtx ))
CPLGetSymbol( pszLibName, "pj_ctx_free" );
pfn_pj_init_plus_ctx = (projPJ (*)( projCtx, const char * ))
CPLGetSymbol( pszLibName, "pj_init_plus_ctx" );
pfn_pj_ctx_get_errno = (int (*)( projCtx ))
CPLGetSymbol( pszLibName, "pj_ctx_get_errno" );
CPLPopErrorHandler();
CPLErrorReset();
#endif
if (pfn_pj_ctx_alloc != NULL &&
pfn_pj_ctx_free != NULL &&
pfn_pj_init_plus_ctx != NULL &&
pfn_pj_ctx_get_errno != NULL &&
CSLTestBoolean(CPLGetConfigOption("USE_PROJ_480_FEATURES", "YES")))
{
CPLDebug("OGRCT", "PROJ >= 4.8.0 features enabled");
}
else
{
pfn_pj_ctx_alloc = NULL;
pfn_pj_ctx_free = NULL;
pfn_pj_init_plus_ctx = NULL;
pfn_pj_ctx_get_errno = NULL;
}
if( pfn_pj_transform == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Attempt to load %s, but couldn't find pj_transform.\n"
"Please upgrade to PROJ 4.1.2 or later.",
pszLibName );
return FALSE;
}
return( TRUE );
}
static bool LoadProjLibrary_unlocked()
{
static bool bTriedToLoad = false;
if( bTriedToLoad )
return pfn_pj_transform != NULL;
bTriedToLoad = true;
const char *pszLibName = GetProjLibraryName();
#ifdef PROJ_STATIC
pfn_pj_init = pj_init;
pfn_pj_init_plus = pj_init_plus;
pfn_pj_free = pj_free;
pfn_pj_transform = pj_transform;
pfn_pj_get_errno_ref = (int *(*)(void)) pj_get_errno_ref;
pfn_pj_strerrno = pj_strerrno;
pfn_pj_dalloc = pj_dalloc;
#if PJ_VERSION >= 446
pfn_pj_get_def = pj_get_def;
#endif
#if PJ_VERSION >= 480
pfn_pj_ctx_alloc = pj_ctx_alloc;
pfn_pj_ctx_free = pj_ctx_free;
pfn_pj_init_plus_ctx = pj_init_plus_ctx;
pfn_pj_ctx_get_errno = pj_ctx_get_errno;
#endif
#else
CPLPushErrorHandler( CPLQuietErrorHandler );
/* coverity[tainted_string] */
pfn_pj_init = (projPJ (*)(int, char**)) CPLGetSymbol( pszLibName,
"pj_init" );
CPLPopErrorHandler();
if( pfn_pj_init == NULL )
return false;
pfn_pj_init_plus = (projPJ (*)(const char *))
CPLGetSymbol( pszLibName, "pj_init_plus" );
pfn_pj_free = (void (*)(projPJ))
CPLGetSymbol( pszLibName, "pj_free" );
pfn_pj_transform = (int (*)(projPJ,projPJ,long,int,double*,
double*,double*))
CPLGetSymbol( pszLibName, "pj_transform" );
pfn_pj_get_errno_ref = (int *(*)(void))
CPLGetSymbol( pszLibName, "pj_get_errno_ref" );
pfn_pj_strerrno = (char *(*)(int))
CPLGetSymbol( pszLibName, "pj_strerrno" );
CPLPushErrorHandler( CPLQuietErrorHandler );
pfn_pj_get_def = (char *(*)(projPJ,int))
CPLGetSymbol( pszLibName, "pj_get_def" );
pfn_pj_dalloc = (void (*)(void*))
CPLGetSymbol( pszLibName, "pj_dalloc" );
/* PROJ 4.8.0 symbols */
pfn_pj_ctx_alloc = (projCtx (*)( void ))
CPLGetSymbol( pszLibName, "pj_ctx_alloc" );
pfn_pj_ctx_free = (void (*)( projCtx ))
CPLGetSymbol( pszLibName, "pj_ctx_free" );
pfn_pj_init_plus_ctx = (projPJ (*)( projCtx, const char * ))
CPLGetSymbol( pszLibName, "pj_init_plus_ctx" );
pfn_pj_ctx_get_errno = (int (*)( projCtx ))
CPLGetSymbol( pszLibName, "pj_ctx_get_errno" );
bProjLocaleSafe = CPLGetSymbol(pszLibName, "pj_atof") != NULL;
CPLPopErrorHandler();
CPLErrorReset();
#endif
if (pfn_pj_ctx_alloc != NULL &&
pfn_pj_ctx_free != NULL &&
pfn_pj_init_plus_ctx != NULL &&
pfn_pj_ctx_get_errno != NULL &&
CPLTestBool(CPLGetConfigOption("USE_PROJ_480_FEATURES", "YES")))
{
CPLDebug("OGRCT", "PROJ >= 4.8.0 features enabled");
}
else
{
pfn_pj_ctx_alloc = NULL;
pfn_pj_ctx_free = NULL;
pfn_pj_init_plus_ctx = NULL;
pfn_pj_ctx_get_errno = NULL;
}
if( bProjLocaleSafe )
CPLDebug("OGRCT", "Using locale-safe proj version");
if( pfn_pj_transform == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Attempt to load %s, but couldn't find pj_transform.\n"
"Please upgrade to PROJ 4.1.2 or later.",
pszLibName );
return false;
}
return true;
}
