egl: s/EGL_DISPLAY/EGL_PLATFORM/.

A platform is already used to mean a window system in EGL.  No need to
use a different term.

8 files changed, 64 insertions, 57 deletions

diff --git a/configs/autoconf.in b/configs/autoconf.in
index 3428e3a2944..417138b2a1f 100644
--- a/configs/autoconf.in
+++ b/configs/autoconf.in
@@ -97,7 +97,7 @@ GALLIUM_DRIVERS = $(foreach DIR,$(GALLIUM_DRIVERS_DIRS),$(TOP)/src/gallium/drive
 
 # Driver specific build vars
 DRI_DIRS = @DRI_DIRS@ 
-EGL_DISPLAYS = @EGL_DISPLAYS@
+EGL_PLATFORMS = @EGL_PLATFORMS@
 EGL_CLIENT_APIS = @EGL_CLIENT_APIS@
 
 # Dependencies
diff --git a/configs/default b/configs/default
index 9241e807977..3d9744409ae 100644
--- a/configs/default
+++ b/configs/default
@@ -110,8 +110,8 @@ GALLIUM_WINSYS_DIRS = sw sw/xlib
 GALLIUM_TARGET_DIRS = libgl-xlib
 GALLIUM_STATE_TRACKERS_DIRS = glx vega
 
-# native displays EGL should support
-EGL_DISPLAYS = x11
+# native platforms EGL should support
+EGL_PLATFORMS = x11
 EGL_CLIENT_APIS = $(GL_LIB)
 
 # Library dependencies
diff --git a/configure.ac b/configure.ac
index 7089a87075f..21123eccccb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1301,18 +1301,22 @@ if test "x$HAVE_ST_XORG" = xyes; then
         HAVE_XEXTPROTO_71="no")
 fi
 
+AC_ARG_WITH([egl-platforms],
+    [AS_HELP_STRING([--with-egl-platforms@<:@=DIRS...@:>@],
+        [comma delimited native platforms libEGL supports, e.g.
+        "x11,kms" @<:@default=auto@:>@])],
+    [with_egl_platforms="$withval"],
+    [with_egl_platforms=yes])
 AC_ARG_WITH([egl-displays],
     [AS_HELP_STRING([--with-egl-displays@<:@=DIRS...@:>@],
-        [comma delimited native displays libEGL supports, e.g.
-        "x11,kms" @<:@default=auto@:>@])],
-    [with_egl_displays="$withval"],
-    [with_egl_displays=yes])
+        [DEPRECATED.  Use --with-egl-platforms instead])],
+    [with_egl_platforms="$withval"])
 
-EGL_DISPLAYS=""
-case "$with_egl_displays" in
+EGL_PLATFORMS=""
+case "$with_egl_platforms" in
 yes)
     if test "x$enable_egl" = xyes && test "x$mesa_driver" != xosmesa; then
-        EGL_DISPLAYS="x11"
+        EGL_PLATFORMS="x11"
     fi
     ;;
 *)
@@ -1320,18 +1324,18 @@ yes)
         AC_MSG_ERROR([cannot build egl state tracker without EGL library])
     fi
     # verify the requested driver directories exist
-    egl_displays=`IFS=', '; echo $with_egl_displays`
-    for dpy in $egl_displays; do
-        test -d "$srcdir/src/gallium/state_trackers/egl/$dpy" || \
-            AC_MSG_ERROR([EGL display '$dpy' does't exist])
-        if test "$dpy" = "fbdev"; then
+    egl_platforms=`IFS=', '; echo $with_egl_platforms`
+    for plat in $egl_platforms; do
+        test -d "$srcdir/src/gallium/state_trackers/egl/$plat" || \
+            AC_MSG_ERROR([EGL platform '$plat' does't exist])
+        if test "$plat" = "fbdev"; then
                 GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/fbdev"
         fi
     done
-    EGL_DISPLAYS="$egl_displays"
+    EGL_PLATFORMS="$egl_platforms"
     ;;
 esac
-AC_SUBST([EGL_DISPLAYS])
+AC_SUBST([EGL_PLATFORMS])
 
 AC_ARG_WITH([egl-driver-dir],
     [AS_HELP_STRING([--with-egl-driver-dir=DIR],
@@ -1579,7 +1583,7 @@ echo "        Shared libs:     $enable_shared"
 echo "        Static libs:     $enable_static"
 if test "$enable_egl" = yes; then
     echo "        EGL:             $EGL_DRIVERS_DIRS"
-    echo "        EGL displays:    $EGL_DISPLAYS"
+    echo "        EGL platforms:   $EGL_PLATFORMS"
 else
     echo "        EGL:             no"
 fi
diff --git a/docs/egl.html b/docs/egl.html
index 559bd990469..b2198e931d0 100644
--- a/docs/egl.html
+++ b/docs/egl.html
@@ -69,17 +69,17 @@ drivers will be installed to <code>${libdir}/egl</code>.</p>
 
 </li>
 
-<li><code>--with-egl-displays</code>
+<li><code>--with-egl-platforms</code>
 
-<p>List the window system(s) to support.  It is by default <code>x11</code>,
-which supports the X Window System.  Its argument is a comma separated string
-like, for example, <code>--with-egl-displays=x11,kms</code>.  Because an EGL
-driver decides which window system to support, this example will enable two
-(sets of) EGL drivers.  One supports the X window system and the other supports
-bare KMS (kernel modesetting).</p>
+<p>List the native platform window system(s) to support.  It is by default
+<code>x11</code>, which supports the X Window System.  Its argument is a comma
+separated string like, for example, <code>--with-egl-platforms=x11,kms</code>.
+Because an EGL driver decides which window system to support, this example will
+enable two (sets of) EGL drivers.  One supports the X window system and the
+other supports bare KMS (kernel modesetting).</p>
 
-<p>The available displays are <code>x11</code>, <code>kms</code>,
-<code>fbdev</code>, and <code>gdi</code>.  The <code>gdi</code> display can
+<p>The available platforms are <code>x11</code>, <code>kms</code>,
+<code>fbdev</code>, and <code>gdi</code>.  The <code>gdi</code> platform can
 only be built with SCons.</p>
 
 </li>
@@ -151,14 +151,14 @@ specific driver.  This variable is ignored for setuid/setgid binaries.</p>
 
 </li>
 
-<li><code>EGL_DISPLAY</code>
+<li><code>EGL_PLATFORM</code>
 
 <p>When <code>EGL_DRIVER</code> is not set, the main library loads <em>all</em>
-EGL drivers that support a certain window system.  <code>EGL_DISPLAY</code> can
-be used to specify the window system and the valid values are, for example,
+EGL drivers that support a certain window system.  <code>EGL_PLATFORM</code>
+can be used to specify the window system and the valid values are, for example,
 <code>x11</code> or <code>kms</code>.  When the variable is not set, the main
 library defaults the value to the first window system listed in
-<code>--with-egl-displays</code> at configuration time.
+<code>--with-egl-platforms</code> at configuration time.
 
 </li>
 
@@ -195,9 +195,9 @@ drivers are</p>
 <li><code>egl_&lt;dpy&gt;_vmwgfx</code></li>
 </ul>
 
-<p><code>&lt;dpy&gt;</code> is given by <code>--with-egl-displays</code> at
+<p><code>&lt;dpy&gt;</code> is given by <code>--with-egl-platforms</code> at
 configuration time.  There is usually one EGL driver for each combination of
-the displays listed and the pipe drivers enabled.  When the display is pure
+the platforms listed and the pipe drivers enabled.  When the platform is pure
 software or pure hardware, non-working combinations will not be built.</p>
 
 <p>Classic EGL drivers, on the other hand, support only a subset of the
@@ -322,7 +322,7 @@ should as well lock the display before using it.
 
 <ul>
 <li>Pass the conformance tests</li>
-<li>Better automatic driver selection: <code>EGL_DISPLAY</code> loads all
+<li>Better automatic driver selection: <code>EGL_PLATFORM</code> loads all
 drivers and might eat too much memory.</li>
 
 </ul>
diff --git a/src/egl/main/Makefile b/src/egl/main/Makefile
index 0af964d8741..d9e9e4fcd6d 100644
--- a/src/egl/main/Makefile
+++ b/src/egl/main/Makefile
@@ -7,7 +7,7 @@ include $(TOP)/configs/current
 EGL_MAJOR = 1
 EGL_MINOR = 0
 
-INCLUDE_DIRS = -I$(TOP)/include $(X11_CFLAGS)
+INCLUDE_DIRS = -I$(TOP)/include
 
 HEADERS = \
 	eglcompiler.h \
@@ -51,10 +51,10 @@ OBJECTS = $(SOURCES:.c=.o)
 # use dl*() to load drivers
 LOCAL_CFLAGS = -D_EGL_OS_UNIX=1
 
-EGL_DEFAULT_DISPLAY = $(word 1, $(EGL_DISPLAYS))
+EGL_DEFAULT_PLATFORM = $(firstword $(EGL_PLATFORMS))
 
 LOCAL_CFLAGS += \
-	-D_EGL_DEFAULT_DISPLAY=\"$(EGL_DEFAULT_DISPLAY)\" \
+	-D_EGL_DEFAULT_PLATFORM=\"$(EGL_DEFAULT_PLATFORM)\" \
 	-D_EGL_DRIVER_SEARCH_DIR=\"$(EGL_DRIVER_INSTALL_DIR)\"
 
 .c.o:
diff --git a/src/egl/main/egldriver.c b/src/egl/main/egldriver.c
index ce5f0f22f05..f56214472e9 100644
--- a/src/egl/main/egldriver.c
+++ b/src/egl/main/egldriver.c
@@ -464,24 +464,27 @@ _eglPreloadUserDriver(void)
 
 
 /**
- * Preload display drivers.
+ * Preload platform drivers.
  *
- * Display drivers are a set of drivers that support a certain display system.
- * The display system may be specified by EGL_DISPLAY.
+ * Platform drivers are a set of drivers that support a certain window system.
+ * The window system may be specified by EGL_PLATFORM.
  *
  * FIXME This makes libEGL a memory hog if an user driver is not specified and
- * there are many display drivers.
+ * there are many platform drivers.
  */
 static EGLBoolean
-_eglPreloadDisplayDrivers(void)
+_eglPreloadPlatformDrivers(void)
 {
    const char *dpy;
    char prefix[32];
    int ret;
 
-   dpy = getenv("EGL_DISPLAY");
+   dpy = getenv("EGL_PLATFORM");
+   /* try deprecated env variable */
    if (!dpy || !dpy[0])
-      dpy = _EGL_DEFAULT_DISPLAY;
+      dpy = getenv("EGL_DISPLAY");
+   if (!dpy || !dpy[0])
+      dpy = _EGL_DEFAULT_PLATFORM;
    if (!dpy || !dpy[0])
       return EGL_FALSE;
 
@@ -515,7 +518,7 @@ _eglPreloadDrivers(void)
    }
 
    loaded = (_eglPreloadUserDriver() ||
-             _eglPreloadDisplayDrivers());
+             _eglPreloadPlatformDrivers());
 
    _eglUnlockMutex(_eglGlobal.Mutex);
 
diff --git a/src/gallium/state_trackers/egl/Makefile b/src/gallium/state_trackers/egl/Makefile
index a11dbf5395c..fec178ffb30 100644
--- a/src/gallium/state_trackers/egl/Makefile
+++ b/src/gallium/state_trackers/egl/Makefile
@@ -42,9 +42,9 @@ ALL_OBJECTS = $(common_OBJECTS) $(x11_OBJECTS) $(kms_OBJECTS) $(fbdev_OBJECTS)
 
 ##### TARGETS #####
 
-EGL_DISPLAYS_MODS = $(foreach dpy, $(EGL_DISPLAYS), libegl$(dpy).a)
+EGL_PLATFORMS_MODS = $(foreach plat, $(EGL_PLATFORMS), libegl$(plat).a)
 
-default: depend $(EGL_DISPLAYS_MODS)
+default: depend $(EGL_PLATFORMS_MODS)
 
 
 libeglx11.a: $(x11_OBJECTS) $(common_OBJECTS) Makefile
@@ -63,7 +63,7 @@ depend:
 
 clean:
 	rm -f $(ALL_OBJECTS)
-	rm -f $(EGL_DISPLAYS_MODS)
+	rm -f $(EGL_PLATFORMS_MODS)
 	rm -f depend depend.bak
 
 # Dummy target
diff --git a/src/gallium/targets/Makefile.egl b/src/gallium/targets/Makefile.egl
index bde5d3ce293..315856014b7 100644
--- a/src/gallium/targets/Makefile.egl
+++ b/src/gallium/targets/Makefile.egl
@@ -63,18 +63,18 @@ INCLUDES = \
 ##### TARGETS #####
 
 ifeq ($(EGL_DRIVER_NAME),swrast)
-EGL_DISPLAYS := $(filter-out kms, $(EGL_DISPLAYS))
+EGL_PLATFORMS := $(filter-out kms, $(EGL_PLATFORMS))
 else
-EGL_DISPLAYS := $(filter-out fbdev, $(EGL_DISPLAYS))
+EGL_PLATFORMS := $(filter-out fbdev, $(EGL_PLATFORMS))
 endif
 
-EGL_DISPLAY_DRIVERS = $(foreach dpy, $(EGL_DISPLAYS), egl_$(dpy)_$(EGL_DRIVER_NAME).so)
+EGL_PLATFORM_DRIVERS = $(foreach plat, $(EGL_PLATFORMS), egl_$(plat)_$(EGL_DRIVER_NAME).so)
 
-EGL_DISPLAY_LIBS = $(foreach drv, $(EGL_DISPLAY_DRIVERS), $(TOP)/$(LIB_DIR)/egl/$(drv))
+EGL_PLATFORM_LIBS = $(foreach drv, $(EGL_PLATFORM_DRIVERS), $(TOP)/$(LIB_DIR)/egl/$(drv))
 
-default: $(EGL_DISPLAY_LIBS)
+default: $(EGL_PLATFORM_LIBS)
 
-$(EGL_DISPLAY_LIBS): $(TOP)/$(LIB_DIR)/egl/%.so: %.so
+$(EGL_PLATFORM_LIBS): $(TOP)/$(LIB_DIR)/egl/%.so: %.so
 	@$(INSTALL) -d $(TOP)/$(LIB_DIR)/egl
 	$(INSTALL) $< $(TOP)/$(LIB_DIR)/egl
 
@@ -97,11 +97,11 @@ egl_fbdev_$(EGL_DRIVER_NAME).so: $(EGL_DRIVER_OBJECTS) $(fbdev_ST) $(EGL_DRIVER_
 
 clean:
 	-rm -f $(EGL_DRIVER_OBJECTS)
-	-rm -f $(EGL_DISPLAY_DRIVERS)
+	-rm -f $(EGL_PLATFORM_DRIVERS)
 
-install: $(EGL_DISPLAY_LIBS)
+install: $(EGL_PLATFORM_LIBS)
 	$(INSTALL) -d $(DESTDIR)$(EGL_DRIVER_INSTALL_DIR)
-	for lib in $(EGL_DISPLAY_LIBS); do \
+	for lib in $(EGL_PLATFORM_LIBS); do \
 		$(MINSTALL) -m 755 "$$lib" $(DESTDIR)$(EGL_DRIVER_INSTALL_DIR); \
 	done