8007386: On physical machine (video card is Intel Q45) the text is blank

Reviewed-by: prr, jchen

jdk/src/solaris/classes/sun/awt/X11GraphicsEnvironment.java

@@ -96,6 +96,7 @@ public class X11GraphicsEnvironment
 
                     // Now check for XRender system property
                     boolean xRenderRequested = true;
+                    boolean xRenderIgnoreLinuxVersion = false;
                     String xProp = System.getProperty("sun.java2d.xrender");
                         if (xProp != null) {
                         if (xProp.equals("false") || xProp.equals("f")) {
@@ -104,6 +105,10 @@ public class X11GraphicsEnvironment
                             xRenderRequested = true;
                             xRenderVerbose = true;
                         }
+
+                        if(xProp.equalsIgnoreCase("t") || xProp.equalsIgnoreCase("true")) {
+                            xRenderIgnoreLinuxVersion = true;
+                        }
                     }
 
                     // initialize the X11 display connection
@@ -121,7 +126,7 @@ public class X11GraphicsEnvironment
 
                     // only attempt to initialize Xrender if it was requested
                     if (xRenderRequested) {
-                        xRenderAvailable = initXRender(xRenderVerbose);
+                        xRenderAvailable = initXRender(xRenderVerbose, xRenderIgnoreLinuxVersion);
                         if (xRenderVerbose && !xRenderAvailable) {
                             System.out.println(
                                          "Could not enable XRender pipeline");
@@ -159,7 +164,7 @@ public class X11GraphicsEnvironment
     private static boolean xRenderVerbose;
     private static boolean xRenderAvailable;
 
-    private static native boolean initXRender(boolean verbose);
+    private static native boolean initXRender(boolean verbose, boolean ignoreLinuxVersion);
     public static boolean isXRenderAvailable() {
         return xRenderAvailable;
     }

jdk/src/solaris/native/sun/java2d/x11/XRBackendNative.c

@@ -31,6 +31,10 @@
 
 #include <X11/extensions/Xrender.h>
 
+#ifdef __linux__
+    #include <sys/utsname.h>
+#endif
+
 /* On Solaris 10 updates 8, 9, the render.h file defines these
  * protocol values but does not define the structs in Xrender.h.
  * Thus in order to get these always defined on Solaris 10
@@ -131,7 +135,7 @@ static
 #define MAX_PAYLOAD (262140u - 36u)
 #define MAXUINT (0xffffffffu)
 
-static jboolean IsXRenderAvailable(jboolean verbose) {
+static jboolean IsXRenderAvailable(jboolean verbose, jboolean ignoreLinuxVersion) {
 
     void *xrenderlib;
 
@@ -253,6 +257,31 @@ static jboolean IsXRenderAvailable(jboolean verbose) {
     }
 #endif
 
+#ifdef __linux__
+    /*
+     * Check for Linux >= 3.5 (Ubuntu 12.04.02 LTS) to avoid hitting
+     * https://bugs.freedesktop.org/show_bug.cgi?id=48045
+     */
+    struct utsname utsbuf;
+    if(uname(&utsbuf) >= 0) {
+        int major, minor, revision;
+        if(sscanf(utsbuf.release, "%i.%i.%i", &major, &minor, &revision) == 3) {
+            if(major < 3 || (major == 3 && minor < 5)) {
+                if(!ignoreLinuxVersion) {
+                    available = JNI_FALSE;
+                }
+                else if(verbose) {
+                 printf("WARNING: Linux < 3.5 detected.\n"
+                        "The pipeline will be enabled, but graphical "
+                        "artifacts can occur with old graphic drivers.\n"
+                        "See the release notes for more details.\n");
+                        fflush(stdout);
+                }
+            }
+        }
+    }
+#endif // __linux__
+
     return available;
 }
 /*
@@ -262,7 +291,7 @@ static jboolean IsXRenderAvailable(jboolean verbose) {
  */
 JNIEXPORT jboolean JNICALL
 Java_sun_awt_X11GraphicsEnvironment_initXRender
-(JNIEnv *env, jclass x11ge, jboolean verbose)
+(JNIEnv *env, jclass x11ge, jboolean verbose, jboolean ignoreLinuxVersion)
 {
 #ifndef HEADLESS
     static jboolean xrenderAvailable = JNI_FALSE;
@@ -277,7 +306,7 @@ Java_sun_awt_X11GraphicsEnvironment_initXRender
         }
 #endif
         AWT_LOCK();
-        xrenderAvailable = IsXRenderAvailable(verbose);
+        xrenderAvailable = IsXRenderAvailable(verbose, ignoreLinuxVersion);
         AWT_UNLOCK();
         firstTime = JNI_FALSE;
     }
@@ -294,9 +323,11 @@ Java_sun_java2d_xr_XRBackendNative_initIDs(JNIEnv *env, jclass cls) {
     XImage* defaultImg;
     jfieldID maskImgID;
     jlong fmt8;
+    jlong fmt24;
     jlong fmt32;
 
     jfieldID a8ID = (*env)->GetStaticFieldID(env, cls, "FMTPTR_A8", "J");
+    jfieldID rgb24ID = (*env)->GetStaticFieldID(env, cls, "FMTPTR_ARGB24", "J");
     jfieldID argb32ID = (*env)->GetStaticFieldID(env, cls, "FMTPTR_ARGB32", "J");
 
     if (awt_display == (Display *)NULL) {
@@ -304,9 +335,11 @@ Java_sun_java2d_xr_XRBackendNative_initIDs(JNIEnv *env, jclass cls) {
     }
 
     fmt8 = ptr_to_jlong(XRenderFindStandardFormat(awt_display, PictStandardA8));
+    fmt24 = ptr_to_jlong(XRenderFindStandardFormat(awt_display, PictStandardRGB24));
     fmt32 = ptr_to_jlong(XRenderFindStandardFormat(awt_display, PictStandardARGB32));
 
     (*env)->SetStaticLongField(env, cls, a8ID, fmt8);
+    (*env)->SetStaticLongField(env, cls, rgb24ID, fmt24);
     (*env)->SetStaticLongField(env, cls, argb32ID, fmt32);
 
     maskData = (char *) malloc(32*32);