Merge remote-tracking branch 'origin/released'

* origin/released:
  fontconfig mesa git update 25 oct 2013

Conflicts:
	mesalib/src/mesa/drivers/dri/common/dri_util.c
	mesalib/src/mesa/drivers/dri/swrast/swrast.c

4 files changed, 119 insertions, 17 deletions

diff --git a/mesalib/src/mesa/drivers/dri/common/Makefile.am b/mesalib/src/mesa/drivers/dri/common/Makefile.am
index ce4119d0f..9f49ff3ae 100644
--- a/mesalib/src/mesa/drivers/dri/common/Makefile.am
+++ b/mesalib/src/mesa/drivers/dri/common/Makefile.am
@@ -27,11 +27,11 @@ AM_CFLAGS = \
 	-I$(top_srcdir)/src/mapi \
 	-I$(top_srcdir)/src/mesa/ \
 	$(DEFINES) \
-	$(LIBDRM_CFLAGS) \
 	$(VISIBILITY_CFLAGS)
 
 noinst_LTLIBRARIES = \
 	libdricommon.la \
+	libmegadriver_stub.la \
 	libdri_test_stubs.la
 
 libdricommon_la_SOURCES = \
@@ -43,4 +43,13 @@ libdri_test_stubs_la_SOURCES = \
 	dri_test.c
 libdri_test_stubs_la_CFLAGS = $(AM_CFLAGS) -DNO_MAIN
 
+libmegadriver_stub_la_SOURCES = megadriver_stub.c
+
 sysconf_DATA = drirc
+
+if DRICOMMON_NEED_LIBDRM
+AM_CFLAGS += $(LIBDRM_CFLAGS)
+libdricommon_la_LDFLAGS = $(LIBDRM_LIBS)
+else
+AM_CFLAGS += -D__NOT_HAVE_DRM_H
+endif
diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.c b/mesalib/src/mesa/drivers/dri/common/dri_util.c
index 74f3a5d99..7f84e6496 100644..100755
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.c
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.c
@@ -82,6 +82,23 @@ setupLoaderExtensions(__DRIscreen *psp,
 }
 
 /**
+ * This pointer determines which driver API we'll use in the case of the
+ * loader not passing us an explicit driver extensions list (that would,
+ * itself, contain a pointer to a driver API.)
+ *
+ * A driver's driDriverGetExtensions_drivername() can update this pointer to
+ * what it's returning, and a loader that is ignorant of createNewScreen2()
+ * will get the correct driver screen created, as long as no other
+ * driDriverGetExtensions() happened in between the first one and the
+ * createNewScreen().
+ *
+ * This allows the X Server to not require the significant dri_interface.h
+ * updates for doing createNewScreen2(), which would discourage backporting of
+ * the X Server patches to support the new loader interface.
+ */
+const struct __DriverAPIRec *globalDriverAPI = &driDriverAPI;
+
+/**
  * This is the first entrypoint in the driver called by the DRI driver loader
  * after dlopen()ing it.
  *
@@ -89,19 +106,33 @@ setupLoaderExtensions(__DRIscreen *psp,
  * Display.
  */
 static __DRIscreen *
-dri2CreateNewScreen(int scrn, int fd,
-		    const __DRIextension **extensions,
-		    const __DRIconfig ***driver_configs, void *data)
+dri2CreateNewScreen2(int scrn, int fd,
+                     const __DRIextension **extensions,
+                     const __DRIextension **driver_extensions,
+                     const __DRIconfig ***driver_configs, void *data)
 {
     static const __DRIextension *emptyExtensionList[] = { NULL };
     __DRIscreen *psp;
-	int gl_version_override;
+	  int gl_version_override;
 
     psp = calloc(1, sizeof(*psp));
     if (!psp)
 	return NULL;
 
-    psp->driver = &driDriverAPI;
+    /* By default, use the global driDriverAPI symbol (non-megadrivers). */
+    psp->driver = globalDriverAPI;
+
+    /* If the driver exposes its vtable through its extensions list
+     * (megadrivers), use that instead.
+     */
+    if (driver_extensions) {
+       for (int i = 0; driver_extensions[i]; i++) {
+          if (strcmp(driver_extensions[i]->name, __DRI_DRIVER_VTABLE) == 0) {
+             psp->driver =
+                ((__DRIDriverVtableExtension *)driver_extensions[i])->vtable;
+          }
+       }
+    }
 
     setupLoaderExtensions(psp, extensions);
 
@@ -155,12 +186,31 @@ dri2CreateNewScreen(int scrn, int fd,
     return psp;
 }
 
+static __DRIscreen *
+dri2CreateNewScreen(int scrn, int fd,
+		    const __DRIextension **extensions,
+		    const __DRIconfig ***driver_configs, void *data)
+{
+   return dri2CreateNewScreen2(scrn, fd, extensions, NULL,
+                               driver_configs, data);
+}
+
 /** swrast driver createNewScreen entrypoint. */
 static __DRIscreen *
-driCreateNewScreen(int scrn, const __DRIextension **extensions,
-		   const __DRIconfig ***driver_configs, void *data)
+driSWRastCreateNewScreen(int scrn, const __DRIextension **extensions,
+                         const __DRIconfig ***driver_configs, void *data)
+{
+   return dri2CreateNewScreen2(scrn, -1, extensions, NULL,
+                               driver_configs, data);
+}
+
+static __DRIscreen *
+driSWRastCreateNewScreen2(int scrn, const __DRIextension **extensions,
+                          const __DRIextension **driver_extensions,
+                          const __DRIconfig ***driver_configs, void *data)
 {
-   return dri2CreateNewScreen(scrn, -1, extensions, driver_configs, data);
+   return dri2CreateNewScreen2(scrn, -1, extensions, driver_extensions,
+                               driver_configs, data);
 }
 
 /**
@@ -257,8 +307,8 @@ dri2CreateContextAttribs(__DRIscreen *screen, int api,
     unsigned major_version = 1;
     unsigned minor_version = 0;
     uint32_t flags = 0;
-	unsigned i;
-	struct gl_context *ctx;
+    unsigned i;
+    struct gl_context *ctx;
 
     assert((num_attribs == 0) || (attribs != NULL));
 
@@ -691,7 +741,7 @@ const __DRIcoreExtension driCoreExtension = {
 
 /** DRI2 interface */
 const __DRIdri2Extension driDRI2Extension = {
-    /*.base =*/ { __DRI_DRI2, 3 },
+    /*.base =*/ { __DRI_DRI2, 4 },
 
     /*.createNewScreen            =*/ dri2CreateNewScreen,
     /*.createNewDrawable          =*/ dri2CreateNewDrawable,
@@ -700,15 +750,17 @@ const __DRIdri2Extension driDRI2Extension = {
     /*.createNewContextForAPI     =*/ dri2CreateNewContextForAPI,
     /*.allocateBuffer             =*/ dri2AllocateBuffer,
     /*.releaseBuffer              =*/ dri2ReleaseBuffer,
-    /*.createContextAttribs       =*/ dri2CreateContextAttribs
+    /*.createContextAttribs       =*/ dri2CreateContextAttribs,
+    /*.createNewScreen2           =*/ dri2CreateNewScreen2,
 };
 
 const __DRIswrastExtension driSWRastExtension = {
-    { __DRI_SWRAST, __DRI_SWRAST_VERSION },
-    driCreateNewScreen,
+    { __DRI_SWRAST, 4 },
+    driSWRastCreateNewScreen,
     dri2CreateNewDrawable,
     dri2CreateNewContextForAPI,
-    dri2CreateContextAttribs
+    dri2CreateContextAttribs,
+    driSWRastCreateNewScreen2,
 };
 
 const __DRI2configQueryExtension dri2ConfigQueryExtension = {
diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.h b/mesalib/src/mesa/drivers/dri/common/dri_util.h
index 61c80bc45..5b56061e2 100644
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.h
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.h
@@ -116,7 +116,7 @@ struct __DriverAPIRec {
 };
 
 extern const struct __DriverAPIRec driDriverAPI;
-
+extern const struct __DriverAPIRec *globalDriverAPI;
 
 /**
  * Per-screen private driver information.
diff --git a/mesalib/src/mesa/drivers/dri/common/megadriver_stub.c b/mesalib/src/mesa/drivers/dri/common/megadriver_stub.c
new file mode 100644
index 000000000..6bf5d7327
--- /dev/null
+++ b/mesalib/src/mesa/drivers/dri/common/megadriver_stub.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright © 2013 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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.
+ */
+
+#include <stdio.h>
+#include "dri_util.h"
+
+static const
+__DRIconfig **stub_error_init_screen(__DRIscreen *psp)
+{
+   fprintf(stderr, "An updated DRI driver loader (libGL.so or X Server) is "
+           "required for this Mesa driver.\n");
+   return NULL;
+}
+
+/**
+ * This is a stub driDriverAPI that is referenced by dri_util.c but should
+ * never be used.
+ */
+const struct __DriverAPIRec driDriverAPI = {
+   .InitScreen = stub_error_init_screen,
+};