+/**************************************************************************
+ *
+ * Copyright 2008 VMware, Inc.
+ * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
+ * Copyright 2010-2011 LunarG, Inc.
+ * 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, sub license, 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 (including the
+ * next paragraph) 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ **************************************************************************/
+
+
/**
* Functions for choosing and opening/loading device drivers.
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
-#include "eglconfig.h"
-#include "eglcontext.h"
+#include "c11/threads.h"
+
#include "egldefines.h"
#include "egldisplay.h"
#include "egldriver.h"
-#include "eglglobals.h"
#include "egllog.h"
-#include "eglmisc.h"
-#include "eglmode.h"
-#include "eglscreen.h"
-#include "eglstring.h"
-#include "eglsurface.h"
-#include "eglimage.h"
-
-#if defined(_EGL_PLATFORM_POSIX)
-#include <dlfcn.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <unistd.h>
-#endif
+typedef struct _egl_module {
+ char *Name;
+ _EGLMain_t BuiltIn;
+ _EGLDriver *Driver;
+} _EGLModule;
+
+static mtx_t _eglModuleMutex = _MTX_INITIALIZER_NP;
+static _EGLArray *_eglModules;
+
+const struct {
+ const char *name;
+ _EGLMain_t main;
+} _eglBuiltInDrivers[] = {
+#ifdef _EGL_BUILT_IN_DRIVER_DRI2
+ { "egl_dri2", _eglBuiltInDriverDRI2 },
+#endif
+#ifdef _EGL_BUILT_IN_DRIVER_HAIKU
+ { "egl_haiku", _eglBuiltInDriverHaiku },
+#endif
+ { NULL, NULL }
+};
/**
- * Wrappers for dlopen/dlclose()
+ * Load a module and create the driver object.
*/
-#if defined(_EGL_PLATFORM_WINDOWS)
-
-
-/* XXX Need to decide how to do dynamic name lookup on Windows */
-static const char DefaultDriverName[] = "TBD";
-
-typedef HMODULE lib_handle;
-
-static HMODULE
-open_library(const char *filename)
-{
- return LoadLibrary(filename);
-}
-
-static void
-close_library(HMODULE lib)
-{
- FreeLibrary(lib);
-}
-
-
-static const char *
-library_suffix(void)
-{
- return ".dll";
-}
-
-
-#elif defined(_EGL_PLATFORM_POSIX)
-
-
-static const char DefaultDriverName[] = "egl_glx";
-
-typedef void * lib_handle;
-
-static void *
-open_library(const char *filename)
-{
- return dlopen(filename, RTLD_LAZY);
-}
-
-static void
-close_library(void *lib)
-{
- dlclose(lib);
-}
-
-
-static const char *
-library_suffix(void)
+static EGLBoolean
+_eglLoadModule(_EGLModule *mod)
{
- return ".so";
-}
-
-
-#else /* _EGL_PLATFORM_NO_OS */
-
-
-static const char DefaultDriverName[] = "builtin";
+ _EGLDriver *drv;
-typedef void *lib_handle;
+ if (mod->Driver)
+ return EGL_TRUE;
-static INLINE void *
-open_library(const char *filename)
-{
- return (void *) filename;
-}
+ if (!mod->BuiltIn)
+ return EGL_FALSE;
-static INLINE void
-close_library(void *lib)
-{
-}
+ drv = mod->BuiltIn(NULL);
+ if (!drv || !drv->Name)
+ return EGL_FALSE;
+ mod->Driver = drv;
-static const char *
-library_suffix(void)
-{
- return NULL;
+ return EGL_TRUE;
}
-#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().
+ * Unload a module.
*/
-static _EGLMain_t
-_eglOpenLibrary(const char *driverPath, lib_handle *handle)
+static void
+_eglUnloadModule(_EGLModule *mod)
{
- lib_handle lib;
- _EGLMain_t mainFunc = NULL;
- const char *error = "unknown error";
-
- assert(driverPath);
-
- _eglLog(_EGL_DEBUG, "dlopen(%s)", driverPath);
- lib = open_library(driverPath);
-
-#if defined(_EGL_PLATFORM_WINDOWS)
- /* XXX untested */
- if (lib)
- mainFunc = (_EGLMain_t) GetProcAddress(lib, "_eglMain");
-#elif defined(_EGL_PLATFORM_POSIX)
- if (lib) {
- 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) {
- _eglLog(_EGL_WARNING, "Could not open driver %s (%s)",
- driverPath, error);
- if (!getenv("EGL_DRIVER"))
- _eglLog(_EGL_WARNING,
- "The driver can be overridden by setting EGL_DRIVER");
- return NULL;
- }
+ /* destroy the driver */
+ if (mod->Driver && mod->Driver->Unload)
+ mod->Driver->Unload(mod->Driver);
- if (!mainFunc) {
- _eglLog(_EGL_WARNING, "_eglMain not found in %s (%s)",
- driverPath, error);
- if (lib)
- close_library(lib);
- return NULL;
- }
-
- *handle = lib;
- return mainFunc;
+ mod->Driver = NULL;
}
/**
- * Load the named driver.
+ * Add a module to the module array.
*/
-static _EGLDriver *
-_eglLoadDriver(const char *path, const char *args)
+static _EGLModule *
+_eglAddModule(const char *name)
{
- _EGLMain_t mainFunc;
- lib_handle lib;
- _EGLDriver *drv = NULL;
-
- mainFunc = _eglOpenLibrary(path, &lib);
- if (!mainFunc)
- return NULL;
+ _EGLModule *mod;
+ EGLint i;
- drv = mainFunc(args);
- if (!drv) {
- if (lib)
- close_library(lib);
- return NULL;
+ if (!_eglModules) {
+ _eglModules = _eglCreateArray("Module", 8);
+ if (!_eglModules)
+ return NULL;
}
- if (!drv->Name) {
- _eglLog(_EGL_WARNING, "Driver loaded from %s has no name", path);
- drv->Name = "UNNAMED";
+ /* find duplicates */
+ for (i = 0; i < _eglModules->Size; i++) {
+ mod = _eglModules->Elements[i];
+ if (strcmp(mod->Name, name) == 0)
+ return mod;
}
- drv->Path = _eglstrdup(path);
- drv->Args = (args) ? _eglstrdup(args) : NULL;
- if (!drv->Path || (args && !drv->Args)) {
- if (drv->Path)
- free((char *) drv->Path);
- if (drv->Args)
- free((char *) drv->Args);
- drv->Unload(drv);
- if (lib)
- close_library(lib);
- return NULL;
- }
-
- drv->LibHandle = lib;
-
- return drv;
-}
-
-
-/**
- * Match a display to a preloaded driver.
- *
- * The matching is done by finding the driver with the highest score.
- */
-_EGLDriver *
-_eglMatchDriver(_EGLDisplay *dpy)
-{
- _EGLDriver *best_drv = NULL;
- EGLint best_score = -1, i;
-
- /*
- * this function is called after preloading and the drivers never change
- * after preloading.
- */
- for (i = 0; i < _eglGlobal.NumDrivers; i++) {
- _EGLDriver *drv = _eglGlobal.Drivers[i];
- EGLint score;
-
- score = (drv->Probe) ? drv->Probe(drv, dpy) : 0;
- if (score > best_score) {
- if (best_drv) {
- _eglLog(_EGL_DEBUG, "driver %s has higher score than %s",
- drv->Name, best_drv->Name);
- }
-
- best_drv = drv;
- best_score = score;
- /* perfect match */
- if (score >= 100)
- break;
+ /* allocate a new one */
+ mod = calloc(1, sizeof(*mod));
+ if (mod) {
+ mod->Name = strdup(name);
+ if (!mod->Name) {
+ free(mod);
+ mod = NULL;
}
}
+ if (mod) {
+ _eglAppendArray(_eglModules, (void *) mod);
+ _eglLog(_EGL_DEBUG, "added %s to module array", mod->Name);
+ }
- return best_drv;
+ return mod;
}
/**
- * A loader function for use with _eglPreloadForEach. The loader data is the
- * filename of the driver. This function stops on the first valid driver.
+ * Free a module.
*/
-static EGLBoolean
-_eglLoaderFile(const char *dir, size_t len, void *loader_data)
+static void
+_eglFreeModule(void *module)
{
- _EGLDriver *drv;
- char path[1024];
- const char *filename = (const char *) loader_data;
- size_t flen = strlen(filename);
-
- /* make a full path */
- if (len + flen + 2 > sizeof(path))
- return EGL_TRUE;
- if (len) {
- memcpy(path, dir, len);
- path[len++] = '/';
- }
- memcpy(path + len, filename, flen);
- len += flen;
- path[len] = '\0';
-
- drv = _eglLoadDriver(path, NULL);
- /* fix the path and load again */
- if (!drv && library_suffix()) {
- const char *suffix = library_suffix();
- size_t slen = strlen(suffix);
- const char *p;
- EGLBoolean need_suffix;
-
- p = filename + flen - slen;
- need_suffix = (p < filename || strcmp(p, suffix) != 0);
- if (need_suffix && len + slen + 1 <= sizeof(path)) {
- strcpy(path + len, suffix);
- drv = _eglLoadDriver(path, NULL);
- }
- }
- if (!drv)
- return EGL_TRUE;
+ _EGLModule *mod = (_EGLModule *) module;
- /* remember the driver and stop */
- _eglGlobal.Drivers[_eglGlobal.NumDrivers++] = drv;
- return EGL_FALSE;
+ _eglUnloadModule(mod);
+ free(mod->Name);
+ free(mod);
}
/**
- * A loader function for use with _eglPreloadForEach. The loader data is the
- * pattern (prefix) of the files to look for.
+ * Add the user driver to the module array.
+ *
+ * The user driver is specified by EGL_DRIVER.
*/
static EGLBoolean
-_eglLoaderPattern(const char *dir, size_t len, void *loader_data)
+_eglAddUserDriver(void)
{
-#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;
+ char *env;
- while ((dirent = readdir(dirp))) {
- _EGLDriver *drv;
- size_t dirent_len = strlen(dirent->d_name);
- const char *p;
+ env = getenv("EGL_DRIVER");
+ if (env) {
+ EGLint i;
- /* 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;
- }
+ for (i = 0; _eglBuiltInDrivers[i].name; i++) {
+ if (!strcmp(_eglBuiltInDrivers[i].name, env)) {
+ _EGLModule *mod = _eglAddModule(env);
+ if (mod)
+ mod->BuiltIn = _eglBuiltInDrivers[i].main;
- /* 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;
+ return EGL_TRUE;
+ }
}
}
- 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.
- *
- * The process may end prematurely if the callback function returns false.
+ * Add built-in drivers to the module array.
*/
-static EGLint
-_eglPreloadForEach(const char *search_path,
- EGLBoolean (*loader)(const char *, size_t, void *),
- void *loader_data)
+static void
+_eglAddBuiltInDrivers(void)
{
- const char *cur, *next;
- size_t len;
- EGLint num_drivers = _eglGlobal.NumDrivers;
-
- cur = search_path;
- while (cur) {
- next = strchr(cur, ':');
- len = (next) ? next - cur : strlen(cur);
-
- if (!loader(cur, len, loader_data))
- break;
+ _EGLModule *mod;
+ EGLint i;
- cur = (next) ? next + 1 : NULL;
+ for (i = 0; _eglBuiltInDrivers[i].name; i++) {
+ mod = _eglAddModule(_eglBuiltInDrivers[i].name);
+ if (mod)
+ mod->BuiltIn = _eglBuiltInDrivers[i].main;
}
-
- return (_eglGlobal.NumDrivers - num_drivers);
}
/**
- * Return a list of colon-separated driver directories.
+ * Add drivers to the module array. Drivers will be loaded as they are matched
+ * to displays.
*/
-static const char *
-_eglGetSearchPath(void)
+static EGLBoolean
+_eglAddDrivers(void)
{
- static const char *search_path;
-
-#if defined(_EGL_PLATFORM_POSIX) || defined(_EGL_PLATFORM_WINDOWS)
- if (!search_path) {
- static char buffer[1024];
- const char *p;
- int ret;
-
- p = getenv("EGL_DRIVERS_PATH");
-#if defined(_EGL_PLATFORM_POSIX)
- if (p && (geteuid() != getuid() || getegid() != getgid())) {
- _eglLog(_EGL_DEBUG,
- "ignore EGL_DRIVERS_PATH for setuid/setgid binaries");
- p = NULL;
- }
-#endif /* _EGL_PLATFORM_POSIX */
+ if (_eglModules)
+ return EGL_TRUE;
- if (p) {
- ret = snprintf(buffer, sizeof(buffer),
- "%s:%s", p, _EGL_DRIVER_SEARCH_DIR);
- if (ret > 0 && ret < sizeof(buffer))
- search_path = buffer;
- }
+ if (!_eglAddUserDriver()) {
+ /*
+ * Add other drivers only when EGL_DRIVER is not set. The order here
+ * decides the priorities.
+ */
+ _eglAddBuiltInDrivers();
}
- if (!search_path)
- search_path = _EGL_DRIVER_SEARCH_DIR;
-#else
- search_path = "";
-#endif
- return search_path;
+ return (_eglModules != NULL);
}
/**
- * Preload a user driver.
- *
- * A user driver can be specified by EGL_DRIVER.
+ * A helper function for _eglMatchDriver. It finds the first driver that can
+ * initialize the display and return.
*/
-static EGLBoolean
-_eglPreloadUserDriver(void)
+static _EGLDriver *
+_eglMatchAndInitialize(_EGLDisplay *dpy)
{
- const char *search_path = _eglGetSearchPath();
- char *env;
+ _EGLDriver *drv = NULL;
+ EGLint i = 0;
- env = getenv("EGL_DRIVER");
-#if defined(_EGL_PLATFORM_POSIX)
- if (env && strchr(env, '/')) {
- search_path = "";
- if ((geteuid() != getuid() || getegid() != getgid())) {
- _eglLog(_EGL_DEBUG,
- "ignore EGL_DRIVER for setuid/setgid binaries");
- env = NULL;
- }
+ if (!_eglAddDrivers()) {
+ _eglLog(_EGL_WARNING, "failed to find any driver");
+ return NULL;
}
-#endif /* _EGL_PLATFORM_POSIX */
- if (!env)
- return EGL_FALSE;
- if (!_eglPreloadForEach(search_path, _eglLoaderFile, (void *) env)) {
- _eglLog(_EGL_WARNING, "EGL_DRIVER is set to an invalid driver");
- return EGL_FALSE;
+ if (dpy->Driver) {
+ drv = dpy->Driver;
+ /* no re-matching? */
+ if (!drv->API.Initialize(drv, dpy))
+ drv = NULL;
+ return drv;
}
- return EGL_TRUE;
-}
-
+ while (i < _eglModules->Size) {
+ _EGLModule *mod = (_EGLModule *) _eglModules->Elements[i];
-/**
- * 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;
+ if (!_eglLoadModule(mod)) {
+ /* remove invalid modules */
+ _eglEraseArray(_eglModules, i, _eglFreeModule);
+ continue;
+ }
- ret = snprintf(prefix, sizeof(prefix), "egl_%s_", dpy);
- if (ret < 0 || ret >= sizeof(prefix))
- return EGL_FALSE;
+ if (mod->Driver->API.Initialize(mod->Driver, dpy)) {
+ drv = mod->Driver;
+ break;
+ }
+ else {
+ i++;
+ }
+ }
- return (_eglPreloadForEach(_eglGetSearchPath(),
- _eglLoaderPattern, (void *) prefix) > 0);
+ return drv;
}
/**
- * Preload the default driver.
+ * Match a display to a driver. The display is initialized unless test_only is
+ * true. The matching is done by finding the first driver that can initialize
+ * the display.
*/
-static EGLBoolean
-_eglPreloadDefaultDriver(void)
+_EGLDriver *
+_eglMatchDriver(_EGLDisplay *dpy, EGLBoolean test_only)
{
- return (_eglPreloadForEach(_eglGetSearchPath(),
- _eglLoaderFile, (void *) DefaultDriverName) > 0);
-}
+ _EGLDriver *best_drv;
+ assert(!dpy->Initialized);
-/**
- * Preload drivers.
- *
- * This function loads the driver modules and creates the corresponding
- * _EGLDriver objects.
- */
-EGLBoolean
-_eglPreloadDrivers(void)
-{
- EGLBoolean loaded;
+ mtx_lock(&_eglModuleMutex);
- /* protect the preloading process */
- _eglLockMutex(_eglGlobal.Mutex);
+ /* set options */
+ dpy->Options.TestOnly = test_only;
+ dpy->Options.UseFallback = EGL_FALSE;
- /* already preloaded */
- if (_eglGlobal.NumDrivers) {
- _eglUnlockMutex(_eglGlobal.Mutex);
- return EGL_TRUE;
+ best_drv = _eglMatchAndInitialize(dpy);
+ if (!best_drv) {
+ dpy->Options.UseFallback = EGL_TRUE;
+ best_drv = _eglMatchAndInitialize(dpy);
}
- loaded = (_eglPreloadUserDriver() ||
- _eglPreloadDisplayDrivers() ||
- _eglPreloadDefaultDriver());
+ mtx_unlock(&_eglModuleMutex);
- _eglUnlockMutex(_eglGlobal.Mutex);
+ if (best_drv) {
+ _eglLog(_EGL_DEBUG, "the best driver is %s%s",
+ best_drv->Name, (test_only) ? " (test only) " : "");
+ if (!test_only) {
+ dpy->Driver = best_drv;
+ dpy->Initialized = EGL_TRUE;
+ }
+ }
- return loaded;
+ return best_drv;
}
-/**
- * Unload preloaded drivers.
- */
-void
-_eglUnloadDrivers(void)
+__eglMustCastToProperFunctionPointerType
+_eglGetDriverProc(const char *procname)
{
EGLint i;
-
- /* this is called at atexit time */
- for (i = 0; i < _eglGlobal.NumDrivers; i++) {
- _EGLDriver *drv = _eglGlobal.Drivers[i];
- lib_handle handle = drv->LibHandle;
-
- if (drv->Path)
- free((char *) drv->Path);
- if (drv->Args)
- free((char *) drv->Args);
-
- /* destroy driver */
- if (drv->Unload)
- drv->Unload(drv);
-
- if (handle)
- close_library(handle);
- _eglGlobal.Drivers[i] = NULL;
+ _EGLProc proc = NULL;
+
+ if (!_eglModules) {
+ /* load the driver for the default display */
+ EGLDisplay egldpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ _EGLDisplay *dpy = _eglLookupDisplay(egldpy);
+ if (!dpy || !_eglMatchDriver(dpy, EGL_TRUE))
+ return NULL;
}
- _eglGlobal.NumDrivers = 0;
-}
-
-
-/**
- * Plug all the available fallback routines into the given driver's
- * dispatch table.
- */
-void
-_eglInitDriverFallbacks(_EGLDriver *drv)
-{
- /* If a pointer is set to NULL, then the device driver _really_ has
- * to implement it.
- */
- drv->API.Initialize = NULL;
- drv->API.Terminate = NULL;
-
- drv->API.GetConfigs = _eglGetConfigs;
- drv->API.ChooseConfig = _eglChooseConfig;
- drv->API.GetConfigAttrib = _eglGetConfigAttrib;
-
- drv->API.CreateContext = _eglCreateContext;
- drv->API.DestroyContext = _eglDestroyContext;
- drv->API.MakeCurrent = _eglMakeCurrent;
- drv->API.QueryContext = _eglQueryContext;
-
- drv->API.CreateWindowSurface = _eglCreateWindowSurface;
- drv->API.CreatePixmapSurface = _eglCreatePixmapSurface;
- drv->API.CreatePbufferSurface = _eglCreatePbufferSurface;
- drv->API.DestroySurface = _eglDestroySurface;
- drv->API.QuerySurface = _eglQuerySurface;
- drv->API.SurfaceAttrib = _eglSurfaceAttrib;
- drv->API.BindTexImage = _eglBindTexImage;
- drv->API.ReleaseTexImage = _eglReleaseTexImage;
- drv->API.SwapInterval = _eglSwapInterval;
- drv->API.SwapBuffers = _eglSwapBuffers;
- drv->API.CopyBuffers = _eglCopyBuffers;
-
- drv->API.QueryString = _eglQueryString;
- drv->API.WaitClient = _eglWaitClient;
- drv->API.WaitNative = _eglWaitNative;
-
-#ifdef EGL_MESA_screen_surface
- drv->API.ChooseModeMESA = _eglChooseModeMESA;
- drv->API.GetModesMESA = _eglGetModesMESA;
- drv->API.GetModeAttribMESA = _eglGetModeAttribMESA;
- drv->API.GetScreensMESA = _eglGetScreensMESA;
- drv->API.CreateScreenSurfaceMESA = _eglCreateScreenSurfaceMESA;
- drv->API.ShowScreenSurfaceMESA = _eglShowScreenSurfaceMESA;
- drv->API.ScreenPositionMESA = _eglScreenPositionMESA;
- drv->API.QueryScreenMESA = _eglQueryScreenMESA;
- drv->API.QueryScreenSurfaceMESA = _eglQueryScreenSurfaceMESA;
- drv->API.QueryScreenModeMESA = _eglQueryScreenModeMESA;
- drv->API.QueryModeStringMESA = _eglQueryModeStringMESA;
-#endif /* EGL_MESA_screen_surface */
-
-#ifdef EGL_VERSION_1_2
- drv->API.CreatePbufferFromClientBuffer = _eglCreatePbufferFromClientBuffer;
-#endif /* EGL_VERSION_1_2 */
-
-#ifdef EGL_KHR_image_base
- drv->API.CreateImageKHR = _eglCreateImageKHR;
- drv->API.DestroyImageKHR = _eglDestroyImageKHR;
-#endif /* EGL_KHR_image_base */
-}
-
+ for (i = 0; i < _eglModules->Size; i++) {
+ _EGLModule *mod = (_EGLModule *) _eglModules->Elements[i];
-/**
- * Invoke a callback function on each EGL search path.
- *
- * The first argument of the callback function is the name of the search path.
- * The second argument is the length of the name.
- */
-void
-_eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *),
- void *callback_data)
-{
- const char *search_path = _eglGetSearchPath();
- _eglPreloadForEach(search_path, callback, callback_data);
-}
-
-
-/**
- * Set the probe cache at the given key.
- *
- * A key, instead of a _EGLDriver, is used to allow the probe cache to be share
- * by multiple drivers.
- */
-void
-_eglSetProbeCache(EGLint key, const void *val)
-{
- EGLint idx;
-
- for (idx = 0; idx < NUM_PROBE_CACHE_SLOTS; idx++) {
- if (!_eglProbeCache.keys[idx] || _eglProbeCache.keys[idx] == key)
+ if (!mod->Driver)
+ break;
+ proc = mod->Driver->API.GetProcAddress(mod->Driver, procname);
+ if (proc)
break;
}
- assert(key > 0);
- assert(idx < NUM_PROBE_CACHE_SLOTS);
- _eglProbeCache.keys[idx] = key;
- _eglProbeCache.values[idx] = val;
+ return proc;
}
/**
- * Return the probe cache at the given key.
+ * Unload all drivers.
*/
-const void *
-_eglGetProbeCache(EGLint key)
+void
+_eglUnloadDrivers(void)
{
- EGLint idx;
-
- for (idx = 0; idx < NUM_PROBE_CACHE_SLOTS; idx++) {
- if (!_eglProbeCache.keys[idx] || _eglProbeCache.keys[idx] == key)
- break;
+ /* this is called at atexit time */
+ if (_eglModules) {
+ _eglDestroyArray(_eglModules, _eglFreeModule);
+ _eglModules = NULL;
}
-
- return (idx < NUM_PROBE_CACHE_SLOTS && _eglProbeCache.keys[idx] == key) ?
- _eglProbeCache.values[idx] : NULL;
}
projects / mesa.git / blobdiff