1 files changed, 102 insertions, 0 deletions
diff --git a/make/config/jogl/gl-impl-CustomJavaCode-common.java b/make/config/jogl/gl-impl-CustomJavaCode-common.java
index 8e8165fff..2254e5f0b 100644
--- a/make/config/jogl/gl-impl-CustomJavaCode-common.java
+++ b/make/config/jogl/gl-impl-CustomJavaCode-common.java
@@ -25,6 +25,16 @@
     }
 
     @Override
+    public final GL getDownstreamGL() throws GLException {
+        return null;
+    }
+
+    @Override
+    public final GL getRootGL() throws GLException {
+        return this;
+    }
+
+    @Override
     public final boolean isGL() {
         return true;
     }
@@ -118,3 +128,95 @@
       return _context.getDefaultReadBuffer();
     }
 
+    private final HashMap<MemoryObject, MemoryObject> arbMemCache = new HashMap<MemoryObject, MemoryObject>();
+
+    /** Entry point to C language function: <code> void *  {@native glMapBuffer}(GLenum target, GLenum access); </code> <br>Part of <code>GL_VERSION_1_5</code>; <code>GL_OES_mapbuffer</code>   */
+    private final java.nio.ByteBuffer glMapBufferImpl(int target, boolean useRange, long offset, long length, int access, long glProcAddress) {
+      if (glProcAddress == 0) {
+        throw new GLException("Method \""+(useRange?"glMapBufferRange":"glMapBuffer")+"\" not available");
+      }
+      final long sz = bufferSizeTracker.getBufferSize(bufferStateTracker, target, this);
+      if (0 == sz) {
+        return null;
+      }
+      if( !useRange ) {
+        length = sz;
+        offset = 0;
+      } else {
+        if( length + offset > sz ) {
+            throw new GLException("Out of range: offset "+offset+" + length "+length+" > size "+sz); 
+        }
+        if( 0 > length || 0 > offset ) {
+            throw new GLException("Invalid values: offset "+offset+", length "+length);
+        }
+        if( 0 == length ) {
+            return null;
+        }
+      }
+      final long addr = useRange ? dispatch_glMapBufferRange(target, offset, length, access, glProcAddress) :
+                                   dispatch_glMapBuffer(target, access, glProcAddress);
+      if (0 == addr) {
+        return null;
+      }
+      ByteBuffer buffer;
+      MemoryObject memObj0 = new MemoryObject(addr, length); // object and key
+      MemoryObject memObj1 = MemoryObject.getOrAddSafe(arbMemCache, memObj0);
+      if(memObj0 == memObj1) {
+        // just added ..
+        if(null != memObj0.getBuffer()) {
+            throw new InternalError();
+        }
+        buffer = newDirectByteBuffer(addr, length);
+        Buffers.nativeOrder(buffer);
+        memObj0.setBuffer(buffer);
+      } else {
+        // already mapped
+        buffer = memObj1.getBuffer();
+        if(null == buffer) {
+            throw new InternalError();
+        }
+      }
+      buffer.position(0);
+      return buffer;
+    }
+    private native long dispatch_glMapBuffer(int target, int access, long glProcAddress);
+    private native long dispatch_glMapBufferRange(int target, long offset, long length, int access, long procAddress);
+
+
+    /** Entry point to C language function: <code> GLvoid *  {@native glMapNamedBufferEXT}(GLuint buffer, GLenum access); </code> <br>Part of <code>GL_EXT_direct_state_access</code>   */
+    private final java.nio.ByteBuffer glMapNamedBufferImpl(int bufferName, int access, long glProcAddress)  {
+      if (glProcAddress == 0) {
+        throw new GLException("Method \"glMapNamedBufferEXT\" not available");
+      }
+      final long sz = bufferSizeTracker.getDirectStateBufferSize(bufferName, this);
+      if (0 == sz) {
+        return null;
+      }
+      final long addr = dispatch_glMapNamedBufferEXT(bufferName, access, glProcAddress);
+      if (0 == addr) {
+        return null;
+      }
+      ByteBuffer buffer;
+      MemoryObject memObj0 = new MemoryObject(addr, sz); // object and key
+      MemoryObject memObj1 = MemoryObject.getOrAddSafe(arbMemCache, memObj0);
+      if(memObj0 == memObj1) {
+        // just added ..
+        if(null != memObj0.getBuffer()) {
+            throw new InternalError();
+        }
+        buffer = newDirectByteBuffer(addr, sz);
+        Buffers.nativeOrder(buffer);
+        memObj0.setBuffer(buffer);
+      } else {
+        // already mapped
+        buffer = memObj1.getBuffer();
+        if(null == buffer) {
+            throw new InternalError();
+        }
+      }
+      buffer.position(0);
+      return buffer;
+    }
+    private native long dispatch_glMapNamedBufferEXT(int buffer, int access, long procAddress);
+
+    private native ByteBuffer newDirectByteBuffer(long addr, long capacity);