#include <string.h>
#include <stdio.h>
#include <stdlib.h>
+
+#include "eglstring.h"
#include "eglconfig.h"
#include "eglcontext.h"
#include "egldefines.h"
#include "eglsurface.h"
#include "eglimage.h"
-#if defined(_EGL_PLATFORM_POSIX)
+#if defined(_EGL_OS_UNIX)
#include <dlfcn.h>
#include <sys/types.h>
#include <dirent.h>
/**
* Wrappers for dlopen/dlclose()
*/
-#if defined(_EGL_PLATFORM_WINDOWS)
+#if defined(_EGL_OS_WINDOWS)
/* XXX Need to decide how to do dynamic name lookup on Windows */
-static const char DefaultDriverName[] = "TBD";
+static const char *DefaultDriverNames[] = {
+ "egl_gallium"
+};
typedef HMODULE lib_handle;
}
-#elif defined(_EGL_PLATFORM_POSIX)
+#elif defined(_EGL_OS_UNIX)
-static const char DefaultDriverName[] = "egl_glx";
+static const char *DefaultDriverNames[] = {
+ "egl_gallium",
+ "egl_dri2",
+ "egl_glx"
+};
typedef void * lib_handle;
}
-#else /* _EGL_PLATFORM_NO_OS */
-
-
-static const char DefaultDriverName[] = "builtin";
-
-typedef void *lib_handle;
-
-static INLINE void *
-open_library(const char *filename)
-{
- return (void *) filename;
-}
-
-static INLINE void
-close_library(void *lib)
-{
-}
-
-
-static const char *
-library_suffix(void)
-{
- return NULL;
-}
-
-
#endif
-#define NUM_PROBE_CACHE_SLOTS 8
-static struct {
- EGLint keys[NUM_PROBE_CACHE_SLOTS];
- const void *values[NUM_PROBE_CACHE_SLOTS];
-} _eglProbeCache;
-
-
/**
* Open the named driver and find its bootstrap function: _eglMain().
*/
_eglLog(_EGL_DEBUG, "dlopen(%s)", driverPath);
lib = open_library(driverPath);
-#if defined(_EGL_PLATFORM_WINDOWS)
+#if defined(_EGL_OS_WINDOWS)
/* XXX untested */
if (lib)
mainFunc = (_EGLMain_t) GetProcAddress(lib, "_eglMain");
-#elif defined(_EGL_PLATFORM_POSIX)
+#elif defined(_EGL_OS_UNIX)
if (lib) {
- mainFunc = (_EGLMain_t) dlsym(lib, "_eglMain");
+ union {
+ _EGLMain_t func;
+ void *ptr;
+ } tmp = { NULL };
+ /* direct cast gives a warning when compiled with -pedantic */
+ tmp.ptr = dlsym(lib, "_eglMain");
+ mainFunc = tmp.func;
if (!mainFunc)
error = dlerror();
}
else {
error = dlerror();
}
-#else /* _EGL_PLATFORM_NO_OS */
- /* must be the default driver name */
- if (strcmp(driverPath, DefaultDriverName) == 0)
- mainFunc = (_EGLMain_t) _eglMain;
- else
- error = "not builtin driver";
#endif
if (!lib) {
len += flen;
path[len] = '\0';
- drv = _eglLoadDriver(path, NULL);
- /* fix the path and load again */
- if (!drv && library_suffix()) {
+ if (library_suffix() == NULL || strstr(path, library_suffix()))
+ drv = _eglLoadDriver(path, NULL);
+ else {
const char *suffix = library_suffix();
size_t slen = strlen(suffix);
const char *p;
if (need_suffix && len + slen + 1 <= sizeof(path)) {
strcpy(path + len, suffix);
drv = _eglLoadDriver(path, NULL);
+ } else {
+ drv = NULL;
}
}
if (!drv)
}
-/**
- * A loader function for use with _eglPreloadForEach. The loader data is the
- * pattern (prefix) of the files to look for.
- */
-static EGLBoolean
-_eglLoaderPattern(const char *dir, size_t len, void *loader_data)
-{
-#if defined(_EGL_PLATFORM_POSIX)
- const char *prefix, *suffix;
- size_t prefix_len, suffix_len;
- DIR *dirp;
- struct dirent *dirent;
- char path[1024];
-
- if (len + 2 > sizeof(path))
- return EGL_TRUE;
- if (len) {
- memcpy(path, dir, len);
- path[len++] = '/';
- }
- path[len] = '\0';
-
- dirp = opendir(path);
- if (!dirp)
- return EGL_TRUE;
-
- prefix = (const char *) loader_data;
- prefix_len = strlen(prefix);
- suffix = library_suffix();
- suffix_len = (suffix) ? strlen(suffix) : 0;
-
- while ((dirent = readdir(dirp))) {
- _EGLDriver *drv;
- size_t dirent_len = strlen(dirent->d_name);
- const char *p;
-
- /* match the prefix */
- if (strncmp(dirent->d_name, prefix, prefix_len) != 0)
- continue;
- /* match the suffix */
- if (suffix) {
- p = dirent->d_name + dirent_len - suffix_len;
- if (p < dirent->d_name || strcmp(p, suffix) != 0)
- continue;
- }
-
- /* make a full path and load the driver */
- if (len + dirent_len + 1 <= sizeof(path)) {
- strcpy(path + len, dirent->d_name);
- drv = _eglLoadDriver(path, NULL);
- if (drv)
- _eglGlobal.Drivers[_eglGlobal.NumDrivers++] = drv;
- }
- }
-
- closedir(dirp);
-
- return EGL_TRUE;
-#else /* _EGL_PLATFORM_POSIX */
- /* stop immediately */
- return EGL_FALSE;
-#endif
-}
-
-
/**
* Run the preload function on each driver directory and return the number of
* drivers loaded.
{
static const char *search_path;
-#if defined(_EGL_PLATFORM_POSIX) || defined(_EGL_PLATFORM_WINDOWS)
+#if defined(_EGL_OS_UNIX) || defined(_EGL_OS_WINDOWS)
if (!search_path) {
static char buffer[1024];
const char *p;
int ret;
p = getenv("EGL_DRIVERS_PATH");
-#if defined(_EGL_PLATFORM_POSIX)
+#if defined(_EGL_OS_UNIX)
if (p && (geteuid() != getuid() || getegid() != getgid())) {
_eglLog(_EGL_DEBUG,
"ignore EGL_DRIVERS_PATH for setuid/setgid binaries");
p = NULL;
}
-#endif /* _EGL_PLATFORM_POSIX */
+#endif /* _EGL_OS_UNIX */
if (p) {
- ret = snprintf(buffer, sizeof(buffer),
+ ret = _eglsnprintf(buffer, sizeof(buffer),
"%s:%s", p, _EGL_DRIVER_SEARCH_DIR);
if (ret > 0 && ret < sizeof(buffer))
search_path = buffer;
char *env;
env = getenv("EGL_DRIVER");
-#if defined(_EGL_PLATFORM_POSIX)
+#if defined(_EGL_OS_UNIX)
if (env && strchr(env, '/')) {
search_path = "";
if ((geteuid() != getuid() || getegid() != getgid())) {
env = NULL;
}
}
-#endif /* _EGL_PLATFORM_POSIX */
+#endif /* _EGL_OS_UNIX */
if (!env)
return EGL_FALSE;
}
-/**
- * Preload display drivers.
- *
- * Display drivers are a set of drivers that support a certain display system.
- * The display system may be specified by EGL_DISPLAY.
- *
- * FIXME This makes libEGL a memory hog if an user driver is not specified and
- * there are many display drivers.
- */
-static EGLBoolean
-_eglPreloadDisplayDrivers(void)
-{
- const char *dpy;
- char prefix[32];
- int ret;
-
- dpy = getenv("EGL_DISPLAY");
- if (!dpy || !dpy[0])
- dpy = _EGL_DEFAULT_DISPLAY;
- if (!dpy || !dpy[0])
- return EGL_FALSE;
-
- ret = snprintf(prefix, sizeof(prefix), "egl_%s_", dpy);
- if (ret < 0 || ret >= sizeof(prefix))
- return EGL_FALSE;
-
- return (_eglPreloadForEach(_eglGetSearchPath(),
- _eglLoaderPattern, (void *) prefix) > 0);
-}
-
-
-/**
- * Preload the default driver.
- */
-static EGLBoolean
-_eglPreloadDefaultDriver(void)
-{
- return (_eglPreloadForEach(_eglGetSearchPath(),
- _eglLoaderFile, (void *) DefaultDriverName) > 0);
-}
-
-
/**
* Preload drivers.
*
return EGL_TRUE;
}
- loaded = (_eglPreloadUserDriver() ||
- _eglPreloadDisplayDrivers() ||
- _eglPreloadDefaultDriver());
+ loaded = _eglPreloadUserDriver();
_eglUnlockMutex(_eglGlobal.Mutex);
return loaded;
}
-
/**
* Unload preloaded drivers.
*/
_eglGlobal.NumDrivers = 0;
}
+_EGLDriver *
+_eglLoadDefaultDriver(EGLDisplay dpy, EGLint *major, EGLint *minor)
+{
+ _EGLDriver *drv = NULL;
+ EGLBoolean ok;
+ int i;
+
+ _eglLockMutex(_eglGlobal.Mutex);
+
+ for (i = 0; i < ARRAY_SIZE(DefaultDriverNames); i++) {
+ _eglPreloadForEach(_eglGetSearchPath(),
+ _eglLoaderFile, (void *) DefaultDriverNames[i]);
+ if (_eglGlobal.NumDrivers == 0)
+ continue;
+ drv = _eglGlobal.Drivers[0];
+
+ _eglUnlockMutex(_eglGlobal.Mutex);
+ ok = drv->API.Initialize(drv, dpy, major, minor);
+ _eglLockMutex(_eglGlobal.Mutex);
+ if (ok)
+ break;
+
+ _eglUnloadDrivers();
+ }
+
+ _eglUnlockMutex(_eglGlobal.Mutex);
+
+ return _eglGlobal.NumDrivers > 0 ? drv : NULL;
+}
+
/**
* Plug all the available fallback routines into the given driver's
/**
- * Set the probe cache at the given key.
+ * Invoke a callback function on each EGL search path.
*
- * A key, instead of a _EGLDriver, is used to allow the probe cache to be share
- * by multiple drivers.
+ * The first argument of the callback function is the name of the search path.
+ * The second argument is the length of the name.
*/
void
-_eglSetProbeCache(EGLint key, const void *val)
+_eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *),
+ void *callback_data)
{
- EGLint idx;
-
- for (idx = 0; idx < NUM_PROBE_CACHE_SLOTS; idx++) {
- if (!_eglProbeCache.keys[idx] || _eglProbeCache.keys[idx] == key)
- break;
- }
- assert(key > 0);
- assert(idx < NUM_PROBE_CACHE_SLOTS);
-
- _eglProbeCache.keys[idx] = key;
- _eglProbeCache.values[idx] = val;
-}
-
-
-/**
- * Return the probe cache at the given key.
- */
-const void *
-_eglGetProbeCache(EGLint key)
-{
- EGLint idx;
-
- for (idx = 0; idx < NUM_PROBE_CACHE_SLOTS; idx++) {
- if (!_eglProbeCache.keys[idx] || _eglProbeCache.keys[idx] == key)
- break;
- }
-
- return (idx < NUM_PROBE_CACHE_SLOTS && _eglProbeCache.keys[idx] == key) ?
- _eglProbeCache.values[idx] : NULL;
+ const char *search_path = _eglGetSearchPath();
+ _eglPreloadForEach(search_path, callback, callback_data);
}
projects / mesa.git / blobdiff