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#define _POSIX_C_SOURCE 200112L
#include <stdio.h>
#include <stdlib.h>
#ifdef _WIN32
#define __STRSAFE__NO_INLINE
#include <windows.h>
#include <strsafe.h>
#else
#include <dlfcn.h>
#include <sys/param.h>
#endif
#include "gkscore.h"
#ifndef MAXPATHLEN
#define MAXPATHLEN 1024
#endif
#ifdef _WIN32
#define EXTENSION "dll"
#else
#ifndef aix
#define EXTENSION "so"
#else
#define EXTENSION "a"
#endif
#endif
#define NAME "plugin"
#define ENTRY_ARGS int, int, int, int, int *, int, double *, int, double *, int, char *, void **
static void *load_library(const char *name)
{
char pathname[MAXPATHLEN];
#ifdef _WIN32
wchar_t grdir[MAX_PATH], w_pathname[MAX_PATH];
HINSTANCE handle;
#else
const char *grdir, *error;
void *handle;
#endif
char symbol[255];
void *entry = NULL;
snprintf(pathname, MAXPATHLEN, "%s.%s", name, EXTENSION);
#ifdef _WIN32
handle = LoadLibrary(pathname);
if (handle == NULL)
{
GetEnvironmentVariableW(L"GRDIR", grdir, MAX_PATH);
StringCbPrintfW(w_pathname, MAX_PATH, L"%ws\\bin\\%S.%S", grdir, name, EXTENSION);
handle = LoadLibraryExW(w_pathname, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
if (handle == NULL)
{
/* Try loading with default search path if altered search path fails
This value is a combination of LOAD_LIBRARY_SEARCH_APPLICATION_DIR,
LOAD_LIBRARY_SEARCH_USER_DIRS, and LOAD_LIBRARY_SEARCH_SYSTEM32.
They are searched in that order.
Use AddDllDirectory to add additional user directories to the search.
*/
handle = LoadLibraryExW(w_pathname, NULL, LOAD_LIBRARY_SEARCH_DEFAULT_DIRS);
}
}
#else
handle = dlopen(pathname, RTLD_LAZY);
if (handle == NULL)
{
#if 1
/* Force debian specific fallback path - /usr/lib/$(DEB_HOST_MULTIARCH)/gr/ */
snprintf(pathname, MAXPATHLEN, "%s/gr/%s.%s", GRLIB, name, EXTENSION);
#else
grdir = gks_getenv("GRDIR");
if (grdir == NULL) grdir = GRDIR;
snprintf(pathname, MAXPATHLEN, "%s/lib/%s.%s", grdir, name, EXTENSION);
#endif
handle = dlopen(pathname, RTLD_LAZY);
}
#endif
if (handle != NULL)
{
snprintf(symbol, 255, "gks_%s", name);
#ifdef _WIN32
entry = (void *)GetProcAddress(handle, symbol);
#else
entry = dlsym(handle, symbol);
#endif
if (entry == NULL)
{
#ifdef _WIN32
gks_perror("%s: unresolved symbol", symbol);
#else
if ((error = dlerror()) != NULL) gks_perror((char *)error);
#endif
}
}
else
{
#ifdef _WIN32
DWORD ec = 0;
ec = GetLastError();
gks_perror("%s: can't load library, error %d (0x%x)", pathname, ec, ec);
#else
if ((error = dlerror()) != NULL) gks_perror((char *)error);
#endif
}
return entry;
}
static const char *get_qt_version_string(void)
{
typedef const char *qversion_t(void);
qversion_t *qVersion = NULL;
#ifdef _WIN32
HMODULE handle = GetModuleHandle("Qt6Core.dll");
if (handle == NULL)
{
handle = GetModuleHandle("Qt5Core.dll");
}
if (handle != NULL) qVersion = (qversion_t *)GetProcAddress(handle, "qVersion");
#else
*(void **)(&qVersion) = dlsym(dlopen(NULL, RTLD_LAZY), "qVersion");
#endif
if (qVersion != NULL) return qVersion();
return NULL;
}
void gks_drv_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
const char *env;
if (name == NULL)
{
name = NAME;
if ((env = gks_getenv("GKS_PLUGIN")) != NULL) name = env;
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_x11_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "x11plugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_gs_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "gsplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_gtk_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "gtkplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_wx_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "wxplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_qt_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
const char *qt_version_string;
int qt_major_version;
if (name == NULL)
{
qt_version_string = getenv("GKS_QT_VERSION");
if (!qt_version_string)
{
qt_version_string = get_qt_version_string();
}
if (qt_version_string != NULL)
{
qt_major_version = atoi(qt_version_string);
switch (qt_major_version)
{
case 6:
name = "qt6plugin";
break;
case 5:
name = "qt5plugin";
break;
default:
name = "qtplugin";
break;
}
}
if (name == NULL) name = "qtplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_svg_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "svgplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_wmf_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "wmfplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_quartz_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "quartzplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_gl_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "glplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_cairo_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "cairoplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_zmq_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "zmqplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_pgf_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "pgfplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_video_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "videoplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
void gks_agg_plugin(int fctid, int dx, int dy, int dimx, int *ia, int lr1, double *r1, int lr2, double *r2, int lc,
char *chars, void **ptr)
{
static const char *name = NULL;
static void (*entry)(ENTRY_ARGS) = NULL;
if (name == NULL)
{
name = "aggplugin";
*(void **)(&entry) = load_library(name);
}
if (entry != NULL) (*entry)(fctid, dx, dy, dimx, ia, lr1, r1, lr2, r2, lc, chars, ptr);
}
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