Add <va_version.h> for versioning helpers.

Signed-off-by: Austin Yuan <shengquan.yuan@intel.com>

configure.ac

@@ -114,6 +114,7 @@ AC_SUBST([libvabackendlib])
 AC_OUTPUT([
 	Makefile
 	src/Makefile
+	src/va_version.h
 	src/x11/Makefile
 	dummy_drv_video/Makefile
 	i965_drv_video/Makefile

dummy_drv_video/dummy_drv_video.c

@@ -1218,8 +1218,8 @@ VAStatus __vaDriverInit_0_30(  VADriverContextP ctx )
     struct dummy_driver_data *driver_data;
     int i;
 
-    ctx->version_major = 0;
-    ctx->version_minor = 29;
+    ctx->version_major = VA_MAJOR_VERSION;
+    ctx->version_minor = VA_MINOR_VERSION;
     ctx->max_profiles = DUMMY_MAX_PROFILES;
     ctx->max_entrypoints = DUMMY_MAX_ENTRYPOINTS;
     ctx->max_attributes = DUMMY_MAX_CONFIG_ATTRIBUTES;

src/Makefile.am

@@ -33,18 +33,15 @@ libva_ladir = $(libdir)
 libva_la_LDFLAGS = $(LDADD) -no-undefined
 libva_la_LIBADD = $(LIBVA_LIBS) -ldl -lX11 -lXext x11/libva_x11.la -ldrm -lXfixes
 
-nodist_libva_la_SOURCES = va_version.h
-BUILT_SOURCES = va_version.h
-
-CLEANFILES = va_version.h
-
-va_version.h: Makefile
-	echo "#define VA_BUILD_DATE \"$(shell date +'%Y%m%d') $(shell date +'1%H%M%S') \"" > va_version.h
-	echo "#define VA_BUILD_GIT  \"($(shell git log  | head -n1 | cut -f2 -d' ')) \" "    >> va_version.h
-
 SUBDIRS = x11
 
 libva_la_SOURCES = va.c
 
 libvaincludedir = ${includedir}/va
-libvainclude_HEADERS = va.h va_backend.h
+libvainclude_HEADERS = va.h va_backend.h va_version.h
+
+DISTCLEANFILES = \
+	va_version.h
+
+EXTRA_DIST = \
+	va_version.h.in

src/va.c

@@ -26,8 +26,6 @@
 #include "va.h"
 #include "va_backend.h"
 
-#include "va_version.h"
-
 #include <assert.h>
 #include <stdarg.h>
 #include <stdio.h>
@@ -41,10 +39,6 @@
 #include "va_dricommon.h"
 
 
-#define VA_STR_VERSION		VA_BUILD_DATE VA_BUILD_GIT
-
-#define VA_MAJOR_VERSION	0
-#define VA_MINOR_VERSION	30
 #define DRIVER_INIT_FUNC	"__vaDriverInit_0_30"
 
 #define DRIVER_EXTENSION	"_drv_video.so"
@@ -334,7 +328,7 @@ VAStatus vaInitialize (
 
   va_debug_trace = (getenv("LIBVA_DEBUG_TRACE") != NULL);
 
-  va_infoMessage("libva build on %s\n", VA_STR_VERSION);
+  va_infoMessage("libva version %s\n", VA_VERSION_S);
 
   vaStatus = va_getDriverName(dpy, &driver_name);
   va_infoMessage("va_getDriverName() returns %d\n", vaStatus);

src/va.h

@@ -63,6 +63,12 @@
 #ifndef _VA_H_
 #define _VA_H_
 
+#ifdef IN_LIBVA
+#include "va_version.h"
+#else
+#include <va/va_version.h>
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif

src/va_version.h.in

+/*
+ * Copyright (C) 2009 Splitted-Desktop Systems. 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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 VA_VERSION_H
+#define VA_VERSION_H
+
+/**
+ * VA_MAJOR_VERSION:
+ *
+ * The major version of the VA library (1, if %VA_VERSION is 1.2.3)
+ */
+#define VA_MAJOR_VERSION   (@LIBVA_MAJOR_VERSION@)
+
+/**
+ * VA_MINOR_VERSION:
+ *
+ * The minor version of the VA library (2, if %VA_VERSION is 1.2.3)
+ */
+#define VA_MINOR_VERSION   (@LIBVA_MINOR_VERSION@)
+
+/**
+ * VA_MICRO_VERSION:
+ *
+ * The micro version of the VA library (3, if %VA_VERSION is 1.2.3)
+ */
+#define VA_MICRO_VERSION   (@LIBVA_MICRO_VERSION@)
+
+/**
+ * VA_VERSION:
+ *
+ * The full version of the VA library, like 1.2.3
+ */
+#define VA_VERSION         @LIBVA_VERSION@
+
+/**
+ * VA_VERSION_S:
+ *
+ * The full version of the VA library, in string form (suited for
+ * string concatenation)
+ */
+#define VA_VERSION_S       "@LIBVA_VERSION@"
+
+/**
+ * VA_VERSION_HEX:
+ *
+ * Numerically encoded version of the VA library, like 0x010203
+ */
+#define VA_VERSION_HEX     ((VA_MAJOR_VERSION << 24) | \
+                            (VA_MINOR_VERSION << 16) | \
+                            (VA_MICRO_VERSION << 8))
+
+/**
+ * VA_CHECK_VERSION:
+ * @major: major version, like 1 in 1.2.3
+ * @minor: minor version, like 2 in 1.2.3
+ * @micro: micro version, like 3 in 1.2.3
+ *
+ * Evaluates to %TRUE if the version of the VA library is greater
+ * than @major, @minor and @micro
+ */
+#define VA_CHECK_VERSION(major,minor,micro) \
+        (VA_MAJOR_VERSION > (major) || \
+         (VA_MAJOR_VERSION == (major) && VA_MINOR_VERSION > (minor)) || \
+         (VA_MAJOR_VERSION == (major) && VA_MINOR_VERSION == (minor) && VA_MICRO_VERSION >= (micro)))
+
+#endif /* VA_VERSION_H */