egl: new eglGetProcAddress() code
The idea is to pass the call down to the device driver where an API-specific query can be made. Untested.
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@ -385,12 +385,15 @@ void (* EGLAPIENTRY eglGetProcAddress(const char *procname))()
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return (genericFunc) egl_functions[i].function;
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}
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}
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#if 0
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/* XXX enable this code someday */
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return (genericFunc) _glapi_get_proc_address(procname);
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#else
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/* now loop over drivers to query their procs */
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for (i = 0; i < _eglGlobal.NumDrivers; i++) {
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_EGLProc p = _eglGlobal.Drivers[i]->API.GetProcAddress(procname);
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if (p)
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return p;
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}
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return NULL;
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#endif
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}
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@ -1,11 +1,16 @@
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#ifndef EGLAPI_INCLUDED
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#define EGLAPI_INCLUDED
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/**
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* A generic function ptr type
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*/
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typedef void (*_EGLProc)();
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/**
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* Typedefs for all EGL API entrypoint functions.
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*/
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/* driver funcs */
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typedef EGLBoolean (*Initialize_t)(_EGLDriver *, EGLDisplay dpy, EGLint *major, EGLint *minor);
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typedef EGLBoolean (*Terminate_t)(_EGLDriver *, EGLDisplay dpy);
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@ -39,6 +44,9 @@ typedef const char *(*QueryString_t)(_EGLDriver *drv, EGLDisplay dpy, EGLint nam
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typedef EGLBoolean (*WaitGL_t)(_EGLDriver *drv, EGLDisplay dpy);
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typedef EGLBoolean (*WaitNative_t)(_EGLDriver *drv, EGLDisplay dpy, EGLint engine);
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typedef _EGLProc (*GetProcAddress_t)(const char *procname);
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#ifdef EGL_MESA_screen_surface
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typedef EGLBoolean (*ChooseModeMESA_t)(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, const EGLint *attrib_list, EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes);
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@ -95,6 +103,7 @@ struct _egl_api
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QueryString_t QueryString;
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WaitGL_t WaitGL;
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WaitNative_t WaitNative;
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GetProcAddress_t GetProcAddress;
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/* EGL_MESA_screen extension */
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ChooseModeMESA_t ChooseModeMESA;
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@ -30,8 +30,8 @@
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#endif
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const char *DefaultDriverName = ":0";
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const char *SysFS = "/sys/class";
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static const char *DefaultDriverName = ":0";
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static const char *SysFS = "/sys/class";
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@ -72,6 +72,9 @@ _eglChooseDRMDriver(int card)
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/**
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* XXX this function is totally subject change!!!
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*
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*
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* Determine/return the name of the driver to use for the given _EGLDisplay.
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*
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* Try to be clever and determine if nativeDisplay is an Xlib Display
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@ -92,6 +95,8 @@ _eglChooseDriver(_EGLDisplay *dpy)
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const char *displayString = (const char *) dpy->NativeDisplay;
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const char *driverName = NULL;
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(void) DefaultDriverName;
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/* First, if the EGL_DRIVER env var is set, use that */
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driverName = getenv("EGL_DRIVER");
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if (driverName)
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@ -139,6 +144,8 @@ _eglChooseDriver(_EGLDisplay *dpy)
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driverName = _weglChooseDriver(dpy);
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#elif defined(_EGL_PLATFORM_WINCE)
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/* XXX to do */
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#else
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driverName = DefaultDriverName;
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#endif
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}
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@ -195,6 +202,8 @@ _eglOpenDriver(_EGLDisplay *dpy, const char *driverName, const char *args)
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/* update the global notion of supported APIs */
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_eglGlobal.ClientAPIsMask |= drv->ClientAPIsMask;
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_eglSaveDriver(drv);
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return drv;
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}
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@ -217,6 +226,16 @@ _eglCloseDriver(_EGLDriver *drv, EGLDisplay dpy)
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}
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/**
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* Save the given driver pointer in the list of all known drivers.
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*/
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void
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_eglSaveDriver(_EGLDriver *drv)
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{
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_eglGlobal.Drivers[ _eglGlobal.NumDrivers++ ] = drv;
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}
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/**
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* Given a display handle, return the _EGLDriver for that display.
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*/
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@ -57,6 +57,10 @@ extern EGLBoolean
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_eglCloseDriver(_EGLDriver *drv, EGLDisplay dpy);
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extern void
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_eglSaveDriver(_EGLDriver *drv);
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extern _EGLDriver *
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_eglLookupDriver(EGLDisplay d);
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@ -35,6 +35,9 @@ struct _egl_global
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/* XXX temporary - should be thread-specific data (TSD) */
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_EGLThreadInfo *ThreadInfo;
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EGLint NumDrivers;
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_EGLDriver *Drivers[10];
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};
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@ -28,8 +28,6 @@ typedef struct _egl_surface _EGLSurface;
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typedef struct _egl_thread_info _EGLThreadInfo;
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typedef void (*_EGLProc)();
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typedef _EGLDriver *(*_EGLMain_t)(_EGLDisplay *dpy, const char *args);
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