Added new IgnoreExtension directive to the GLEmitter which allows a

block of functions and #defines associated with a particular extension
to be ignored in one shot.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/branches/JSR-231@335 232f8b59-042b-4e1e-8c03-345bb8c30851

5 files changed, 73 insertions, 15 deletions

diff --git a/src/net/java/games/gluegen/GlueEmitterControls.java b/src/net/java/games/gluegen/GlueEmitterControls.java
index 15df83654..4f5d3a8d3 100644
--- a/src/net/java/games/gluegen/GlueEmitterControls.java
+++ b/src/net/java/games/gluegen/GlueEmitterControls.java
@@ -46,4 +46,8 @@ public interface GlueEmitterControls {
   /** Requests emission of an accessor for a struct that will not be
       referenced by any functions or other structs. */
   public void forceStructEmission(String typedefName);
+
+  /** Finds the full path name of the specified header file based on
+      the include directories specified on the command line. */
+  public String findHeaderFile(String headerFileName);
 }
diff --git a/src/net/java/games/gluegen/GlueGen.java b/src/net/java/games/gluegen/GlueGen.java
index 442f6405b..dd810572d 100644
--- a/src/net/java/games/gluegen/GlueGen.java
+++ b/src/net/java/games/gluegen/GlueGen.java
@@ -52,11 +52,16 @@ import net.java.games.gluegen.pcpp.*;
 
 public class GlueGen implements GlueEmitterControls {
   private java.util.List forcedStructNames = new ArrayList();
+  private PCPP preprocessor;
 
   public void forceStructEmission(String typedefName) {
     forcedStructNames.add(typedefName);
   }
 
+  public String findHeaderFile(String headerFileName) {
+    return preprocessor.findFile(headerFileName);
+  }
+
   public void run(String[] args) {
     try {
       Reader reader = null;
@@ -99,7 +104,7 @@ public class GlueGen implements GlueEmitterControls {
         }
       }
 
-      final PCPP preprocessor = new PCPP(includePaths);
+      preprocessor = new PCPP(includePaths);
       PipedInputStream ppIn   = new PipedInputStream();
       final PipedOutputStream ppOut = new PipedOutputStream(ppIn);
       preprocessor.setOut(ppOut);
diff --git a/src/net/java/games/gluegen/opengl/BuildStaticGLInfo.java b/src/net/java/games/gluegen/opengl/BuildStaticGLInfo.java
index 46e268075..867197e03 100644
--- a/src/net/java/games/gluegen/opengl/BuildStaticGLInfo.java
+++ b/src/net/java/games/gluegen/opengl/BuildStaticGLInfo.java
@@ -197,6 +197,7 @@ public class BuildStaticGLInfo
         //System.err.println("FOUND NEW ASSOCIATION BLOCK: " + activeAssociation);
       }
     }
+    reader.close();
   }
 
   public void dump() {
diff --git a/src/net/java/games/gluegen/opengl/GLEmitter.java b/src/net/java/games/gluegen/opengl/GLEmitter.java
index f36d7b1ac..b0c88e954 100644
--- a/src/net/java/games/gluegen/opengl/GLEmitter.java
+++ b/src/net/java/games/gluegen/opengl/GLEmitter.java
@@ -61,6 +61,12 @@ public class GLEmitter extends JavaEmitter
   private String tableClassName;
   private int numProcAddressEntries;
   
+  public void beginEmission(GlueEmitterControls controls) throws IOException
+  {
+    getGLConfig().parseGLHeaders(controls);
+    super.beginEmission(controls);
+  }
+
   public void beginFunctions(TypeDictionary typedefDictionary,
                              TypeDictionary structDictionary,
                              Map            canonMap) throws Exception
@@ -361,6 +367,10 @@ public class GLEmitter extends JavaEmitter
     private String  contextVariableName = "context";
     private String  defaultGetProcAddressTableExpr = ".getGLProcAddressTable()";
     private String  getProcAddressTableExpr;
+    // The following data members support ignoring an entire extension at a time
+    private List/*<String>*/ glHeaders = new ArrayList();
+    private Set/*<String>*/ ignoredExtensions = new HashSet();
+    private BuildStaticGLInfo glInfo;
 
     protected void dispatch(String cmd, StringTokenizer tok, File file, String filename, int lineNo) throws IOException {
       if (cmd.equalsIgnoreCase("EmitProcAddressTable"))
@@ -394,6 +404,16 @@ public class GLEmitter extends JavaEmitter
       {
         getProcAddressTableExpr = readGetProcAddressTableExpr(tok, filename, lineNo);
       }
+      else if (cmd.equalsIgnoreCase("IgnoreExtension"))
+      {
+        String sym = readString("IgnoreExtension", tok, filename, lineNo);
+        ignoredExtensions.add(sym);
+      }
+      else if (cmd.equalsIgnoreCase("GLHeader"))
+      {
+        String sym = readString("GLHeader", tok, filename, lineNo);
+        glHeaders.add(sym);
+      }
       else
       {
         super.dispatch(cmd,tok,file,filename,lineNo);
@@ -422,6 +442,34 @@ public class GLEmitter extends JavaEmitter
       }
       return getProcAddressTableExpr;
     }
+
+    public boolean shouldIgnore(String symbol) {
+      // Check ignored extensions based on our knowledge of the static GL info
+      if (glInfo != null) {
+        String extension = glInfo.getExtension(symbol);
+        if (extension != null &&
+            ignoredExtensions.contains(extension)) {
+          return true;
+        }
+      }
+
+      return super.shouldIgnore(symbol);
+    }
+
+    /** Parses any GL headers specified in the configuration file for
+        the purpose of being able to ignore an extension at a time. */
+    public void parseGLHeaders(GlueEmitterControls controls) throws IOException {
+      if (!glHeaders.isEmpty()) {
+        glInfo = new BuildStaticGLInfo();
+        for (Iterator iter = glHeaders.iterator(); iter.hasNext(); ) {
+          String file = (String) iter.next();
+          String fullPath = controls.findHeaderFile(file);
+          if (fullPath == null) {
+            throw new IOException("Unable to locate header file \"" + file + "\"");
+          }
+          glInfo.parse(fullPath);
+        }
+      }
+    }
   } // end class GLConfiguration
 }
-  
diff --git a/src/net/java/games/gluegen/pcpp/PCPP.java b/src/net/java/games/gluegen/pcpp/PCPP.java
index 0990bb155..51fa8f9bf 100644
--- a/src/net/java/games/gluegen/pcpp/PCPP.java
+++ b/src/net/java/games/gluegen/pcpp/PCPP.java
@@ -125,6 +125,19 @@ public class PCPP {
     }
   }
 
+  public String findFile(String filename) {
+    String sep = File.separator;
+    for (Iterator iter = includePaths.iterator(); iter.hasNext(); ) {
+      String inclPath = (String) iter.next();
+      String fullPath = inclPath + sep + filename;
+      File file = new File(fullPath);
+      if (file.exists()) {
+        return fullPath;
+      }
+    }
+    return null;
+  }
+
   //----------------------------------------------------------------------
   // Internals only below this point
   //
@@ -748,19 +761,6 @@ public class PCPP {
     }
   }
 
-  private String findFile(String filename) {
-    String sep = System.getProperty("file.separator");
-    for (Iterator iter = includePaths.iterator(); iter.hasNext(); ) {
-      String inclPath = (String) iter.next();
-      String fullPath = inclPath + sep + filename;
-      File file = new File(fullPath);
-      if (file.exists()) {
-        return fullPath;
-      }
-    }
-    return null;
-  }
-
   ////////////
   // Output //
   ////////////