3 files changed, 116 insertions, 9 deletions
diff --git a/src/com/mbien/opencl/CLBuildConfiguration.java b/src/com/mbien/opencl/CLBuildConfiguration.java
index 86b5cfa2..eee641a0 100644
--- a/src/com/mbien/opencl/CLBuildConfiguration.java
+++ b/src/com/mbien/opencl/CLBuildConfiguration.java
@@ -1,13 +1,14 @@
 package com.mbien.opencl;
 
 import java.io.IOException;
-import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.util.Map;
 
 /**
  * Configuration representing everything needed to build an OpenCL program.
  * @author Michael Bien
+ * @see CLProgramBuilder#createConfiguration()
+ * @see CLProgramBuilder#loadConfiguration(java.io.ObjectInputStream)
  */
 public interface CLBuildConfiguration extends Cloneable {
 
@@ -38,6 +39,21 @@ public interface CLBuildConfiguration extends Cloneable {
     public CLBuildConfiguration reset();
 
     /**
+     * Resets this builder's configuration options.
+     */
+    public CLBuildConfiguration resetOptions();
+
+    /**
+     * Resets this builder's macro definitions.
+     */
+    public CLBuildConfiguration resetDefines();
+
+    /**
+     * Resets this builder's device list.
+     */
+    public CLBuildConfiguration resetDevices();
+
+    /**
      * Adds the definition to the build configuration.
      * @see CLProgram#define(java.lang.String)
      */
@@ -78,8 +94,10 @@ public interface CLBuildConfiguration extends Cloneable {
      */
     public CLBuildConfiguration clone();
 
+    /**
+     * Saves this configuration to the ObjectOutputStream.
+     * The caller is responsible for closing the stream.
+     */
     public void save(ObjectOutputStream oos) throws IOException;
 
-    public CLBuildConfiguration load(ObjectInputStream ois)  throws IOException, ClassNotFoundException;
-
 }
diff --git a/src/com/mbien/opencl/CLProgramBuilder.java b/src/com/mbien/opencl/CLProgramBuilder.java
index 5948309e..fef7d878 100644
--- a/src/com/mbien/opencl/CLProgramBuilder.java
+++ b/src/com/mbien/opencl/CLProgramBuilder.java
@@ -20,7 +20,8 @@ import java.util.Set;
  * @see CLProgram#prepare()
  * @see #createConfiguration()
  * @see #createConfiguration(com.mbien.opencl.CLProgram)
- * @see #load(java.io.ObjectInputStream) 
+ * @see #loadConfiguration(java.io.ObjectInputStream)
+ * @see #loadConfiguration(java.io.ObjectInputStream, com.mbien.opencl.CLContext)
  * @author Michael Bien
  */
 public final class CLProgramBuilder implements CLProgramConfiguration, Serializable {
@@ -54,14 +55,58 @@ public final class CLProgramBuilder implements CLProgramConfiguration, Serializa
         }
     }
 
+    /**
+     * Creates a new CLBuildConfiguration.
+     */
     public static CLBuildConfiguration createConfiguration() {
         return createConfiguration(null);
     }
 
+    /**
+     * Creates a new CLProgramConfiguration for this program.
+     */
     public static CLProgramConfiguration createConfiguration(CLProgram program) {
         return new CLProgramBuilder(program);
     }
 
+    /**
+     * Loads a CLBuildConfiguration.
+     * @param ois The ObjectInputStream for reading the object.
+     */
+    public static CLBuildConfiguration loadConfiguration(ObjectInputStream ois) throws IOException, ClassNotFoundException {
+        return (CLBuildConfiguration) ois.readObject();
+    }
+
+    /**
+     * Loads a CLProgramConfiguration containing a CLProgram.
+     * The CLProgram is initialized and ready to be build after this method call.
+     * This method preferes program initialization from binaries if this fails or if
+     * no binaries have been found, it will try to load the program from sources. If
+     * This also fails an appropriate exception will be thrown.
+     * @param ois The ObjectInputStream for reading the object.
+     * @param context The context used for program initialization.
+     */
+    public static CLProgramConfiguration loadConfiguration(ObjectInputStream ois, CLContext context) throws IOException, ClassNotFoundException {
+        CLProgramBuilder config = (CLProgramBuilder) ois.readObject();
+        if(config.binariesMap.size() > 0 && config.binariesMap.values().iterator().next().length > 0) {
+            try{
+                config.program = context.createProgram(config.binariesMap);
+            }catch(CLException.CLInvalidBinaryException ex) {
+                if(config.source != null) {
+                    config.program = context.createProgram(config.source);
+                }else{
+                    throw new IOException("Program configuration contained invalid program binaries and no source.", ex);
+                }
+            }
+        }else if(config.source != null) {
+            config.program = context.createProgram(config.source);
+        }else{
+            throw new IOException("Program configuration did not contain program sources or binaries");
+        }
+        return config;
+    }
+
+    @Override
     public void save(ObjectOutputStream oos) throws IOException {
         if(program != null) {
             this.source = program.getSource();
@@ -72,16 +117,14 @@ public final class CLProgramBuilder implements CLProgramConfiguration, Serializa
         oos.writeObject(this);
     }
 
-    public CLProgramConfiguration load(ObjectInputStream ois) throws IOException, ClassNotFoundException {
-        return (CLProgramConfiguration) ois.readObject();
-    }
-
 
+    @Override
     public CLProgramBuilder withOption(String option) {
         optionSet.add(option);
         return this;
     }
 
+    @Override
     public CLProgramBuilder withOptions(String... options) {
         for (String option : options) {
             optionSet.add(option);
@@ -89,11 +132,13 @@ public final class CLProgramBuilder implements CLProgramConfiguration, Serializa
         return this;
     }
 
+    @Override
     public CLProgramBuilder withDefine(String name) {
         defineSet.add(CLProgram.define(name));
         return this;
     }
 
+    @Override
     public CLProgramBuilder withDefines(String... names) {
         for (String name : names) {
             defineSet.add(CLProgram.define(name));
@@ -101,11 +146,13 @@ public final class CLProgramBuilder implements CLProgramConfiguration, Serializa
         return this;
     }
 
+    @Override
     public CLProgramBuilder withDefine(String name, Object value) {
         defineSet.add(CLProgram.define(name, value.toString()));
         return this;
     }
 
+    @Override
     public CLProgramBuilder withDefines(Map<String, String> defines) {
         for (String name : defines.keySet()) {
             defineSet.add(CLProgram.define(name, defines.get(name)));
@@ -113,11 +160,13 @@ public final class CLProgramBuilder implements CLProgramConfiguration, Serializa
         return this;
     }
 
+    @Override
     public CLProgramBuilder forDevice(CLDevice device) {
         binariesMap.put(device, NO_BINARIES);
         return this;
     }
 
+    @Override
     public CLProgramBuilder forDevices(CLDevice... devices) {
         for (CLDevice device : devices) {
             binariesMap.put(device, NO_BINARIES);
@@ -125,10 +174,12 @@ public final class CLProgramBuilder implements CLProgramConfiguration, Serializa
         return this;
     }
 
+    @Override
     public CLProgram build() {
         return build(program);
     }
 
+    @Override
     public CLProgram build(CLProgram program) {
         if(program == null) {
             throw new NullPointerException("no program has been set");
@@ -141,13 +192,32 @@ public final class CLProgramBuilder implements CLProgramConfiguration, Serializa
         return program.build(options, devices);
     }
 
+    @Override
     public CLProgramBuilder reset() {
-        optionSet.clear();
+        resetOptions();
+        resetDefines();
+        resetDevices();
+        return this;
+    }
+
+    @Override
+    public CLProgramConfiguration resetDefines() {
         defineSet.clear();
+        return this;
+    }
+
+    @Override
+    public CLProgramConfiguration resetDevices() {
         binariesMap.clear();
         return this;
     }
 
+    @Override
+    public CLProgramConfiguration resetOptions() {
+        optionSet.clear();
+        return this;
+    }
+
     private void writeObject(ObjectOutputStream out) throws IOException {
         out.defaultWriteObject();
         out.writeInt(binariesMap.size());
@@ -177,6 +247,14 @@ public final class CLProgramBuilder implements CLProgramConfiguration, Serializa
     }
 
     @Override
+    public CLProgramBuilder asBuildConfiguration() {
+        CLProgramBuilder builder = new CLProgramBuilder();
+        builder.defineSet.addAll(defineSet);
+        builder.optionSet.addAll(optionSet);
+        return builder;
+    }
+    
+    @Override
     public CLProgramBuilder clone() {
         CLProgramBuilder builder = new CLProgramBuilder(program, source, binariesMap);
         builder.defineSet.addAll(defineSet);
diff --git a/src/com/mbien/opencl/CLProgramConfiguration.java b/src/com/mbien/opencl/CLProgramConfiguration.java
index fdd0b804..fc074f33 100644
--- a/src/com/mbien/opencl/CLProgramConfiguration.java
+++ b/src/com/mbien/opencl/CLProgramConfiguration.java
@@ -7,6 +7,8 @@ import java.util.Map;
  * CLProgramConfiguration is a helper for building programs with more complex configurations or
  * building multiple programs with the similar configuration.
  * @see CLProgram#prepare()
+ * @see CLProgramBuilder#createConfiguration(com.mbien.opencl.CLProgram)
+ * @see CLProgramBuilder#loadConfiguration(java.io.ObjectInputStream, com.mbien.opencl.CLContext)
  * @author Michael Bien
  */
 public interface CLProgramConfiguration extends CLBuildConfiguration {
@@ -21,6 +23,12 @@ public interface CLProgramConfiguration extends CLBuildConfiguration {
      */
     public CLProgram getProgram();
 
+    /**
+     * Returns a new instance of of this configuration without a {@link CLProgram},
+     * program binaries or sources associated with it.
+     */
+    public CLBuildConfiguration asBuildConfiguration();
+
 
     // overwrite with CLProgramConfiguration as return type
     @Override public CLProgramConfiguration forDevice(CLDevice device);
@@ -32,6 +40,9 @@ public interface CLProgramConfiguration extends CLBuildConfiguration {
     @Override public CLProgramConfiguration withOption(String option);
     @Override public CLProgramConfiguration withOptions(String... options);
     @Override public CLProgramConfiguration reset();
+    @Override public CLProgramConfiguration resetOptions();
+    @Override public CLProgramConfiguration resetDefines();
+    @Override public CLProgramConfiguration resetDevices();
     @Override public CLProgramConfiguration clone();
 
 }