egl: don't fill client apis string forever.

[mesa.git] / src / egl / main / egldriver.h

diff --git a/src/egl/main/egldriver.h b/src/egl/main/egldriver.h
index 4066c6ec1df9b9c3ab134a7ce78763b7423b7d88..11300ce1ee2c21a17626f2a20cf78af4c92ded89 100644 (file)
--- a/src/egl/main/egldriver.h
+++ b/src/egl/main/egldriver.h
@@ -1,22 +1,71 @@
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+
 #ifndef EGLDRIVER_INCLUDED
 #define EGLDRIVER_INCLUDED
 
 
+#include "c99_compat.h"
+
 #include "egltypedefs.h"
 #include "eglapi.h"
-#include "egldefines.h"
+#include <stddef.h>
+
+/**
+ * Define an inline driver typecast function.
+ *
+ * Note that this macro defines a function and should not be ended with a
+ * semicolon when used.
+ */
+#define _EGL_DRIVER_TYPECAST(drvtype, egltype, code)           \
+   static inline struct drvtype *drvtype(const egltype *obj)   \
+   { return (struct drvtype *) code; }
 
 
 /**
- * Optional EGL extensions info.
+ * Define the driver typecast functions for _EGLDriver, _EGLDisplay,
+ * _EGLContext, _EGLSurface, and _EGLConfig.
+ *
+ * Note that this macro defines several functions and should not be ended with
+ * a semicolon when used.
  */
-struct _egl_extensions
-{
-   EGLBoolean MESA_screen_surface;
-   EGLBoolean MESA_copy_context;
+#define _EGL_DRIVER_STANDARD_TYPECASTS(drvname)                            \
+   _EGL_DRIVER_TYPECAST(drvname ## _driver, _EGLDriver, obj)               \
+   /* note that this is not a direct cast */                               \
+   _EGL_DRIVER_TYPECAST(drvname ## _display, _EGLDisplay, obj->DriverData) \
+   _EGL_DRIVER_TYPECAST(drvname ## _context, _EGLContext, obj)             \
+   _EGL_DRIVER_TYPECAST(drvname ## _surface, _EGLSurface, obj)             \
+   _EGL_DRIVER_TYPECAST(drvname ## _config, _EGLConfig, obj)
 
-   char String[_EGL_MAX_EXTENSIONS_LEN];
-};
+
+typedef _EGLDriver *(*_EGLMain_t)(const char *args);
 
 
 /**
@@ -24,58 +73,55 @@ struct _egl_extensions
  */
 struct _egl_driver
 {
-   EGLBoolean Initialized; /**< set by driver after initialized */
-
-   void *LibHandle; /**< dlopen handle */
-
    const char *Name;  /**< name of this driver */
 
-   int APImajor, APIminor; /**< as returned by eglInitialize() */
-   char Version[1000];       /**< initialized from APImajor/minor, Name */
-
-   /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
-   EGLint ClientAPIsMask;
+   /**
+    * Release the driver resource.
+    *
+    * It is called before dlclose().
+    */
+   void (*Unload)(_EGLDriver *drv);
 
    _EGLAPI API;  /**< EGL API dispatch table */
-
-   _EGLExtensions Extensions;
-
-   int LargestPbuffer;
 };
 
 
-extern _EGLDriver *_eglMain(_EGLDisplay *dpy, const char *args);
+extern _EGLDriver *
+_eglBuiltInDriverGALLIUM(const char *args);
+
 
+extern _EGLDriver *
+_eglBuiltInDriverDRI2(const char *args);
 
-extern const char *
-_eglChooseDRMDriver(int card);
 
-extern const char *
-_eglChooseDriver(_EGLDisplay *dpy);
+extern _EGLDriver *
+_eglBuiltInDriverGLX(const char *args);
 
 
 extern _EGLDriver *
-_eglOpenDriver(_EGLDisplay *dpy, const char *driverName, const char *args);
+_eglMain(const char *args);
 
 
-extern EGLBoolean
-_eglCloseDriver(_EGLDriver *drv, EGLDisplay dpy);
+extern _EGLDriver *
+_eglMatchDriver(_EGLDisplay *dpy, EGLBoolean test_only);
 
 
-extern void
-_eglSaveDriver(_EGLDriver *drv);
+extern __eglMustCastToProperFunctionPointerType
+_eglGetDriverProc(const char *procname);
 
 
-extern _EGLDriver *
-_eglLookupDriver(EGLDisplay d);
+extern void
+_eglUnloadDrivers(void);
 
 
+/* defined in eglfallbacks.c */
 extern void
 _eglInitDriverFallbacks(_EGLDriver *drv);
 
 
-extern EGLint
-_eglFindAPIs(void);
+extern void
+_eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *),
+                      void *callback_data);
 
 
 #endif /* EGLDRIVER_INCLUDED */