Merge branch 'master' of github.com:sgothel/jogl

1 files changed, 215 insertions, 0 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataWrapper.java b/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataWrapper.java
new file mode 100644
index 000000000..2ab77fa1b
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataWrapper.java
@@ -0,0 +1,215 @@
+
+package com.jogamp.opengl.util;
+
+import javax.media.opengl.*;
+
+import com.jogamp.opengl.util.glsl.fixedfunc.impl.*;
+
+import java.nio.*;
+
+public class GLArrayDataWrapper implements GLArrayData {
+
+  public static GLArrayDataWrapper createFixed(GL gl, int index, int comps, int dataType, boolean normalized, 
+                                              int stride, Buffer buffer,
+                                              int vboName, long bufferOffset)
+    throws GLException
+  {
+      gl.getGLProfile().isValidArrayDataType(index, comps, dataType, false, true);
+      GLArrayDataWrapper adc = new GLArrayDataWrapper();
+      adc.init(null, index, comps, dataType, normalized, stride, buffer, false, 
+               vboName, bufferOffset);
+      return adc;
+  }
+
+  public static GLArrayDataWrapper createGLSL(GL gl, String name, int comps, int dataType, boolean normalized, 
+                                             int stride, Buffer buffer,
+                                             int vboName, long bufferOffset)
+    throws GLException
+  {
+      if(!gl.hasGLSL()) {
+        throw new GLException("GLArrayDataWrapper.GLSL not supported: "+gl);
+      }
+      gl.getGLProfile().isValidArrayDataType(-1, comps, dataType, true, true);
+
+      GLArrayDataWrapper adc = new GLArrayDataWrapper();
+      adc.init(name, -1, comps, dataType, normalized, stride, buffer, true,
+               vboName, bufferOffset);
+      return adc;
+  }
+
+  // 
+  // Data read access
+  //
+
+  public final boolean isVertexAttribute() { return isVertexAttribute; }
+
+  public final int getIndex() { return index; }
+
+  public final int getLocation() { return location; }
+
+  public final void setLocation(int v) { location = v; }
+
+  public final String getName() { return name; }
+
+  public final long getOffset() { return vboUsage?bufferOffset:-1; }
+
+  public final int getVBOName() { return vboUsage?vboName:-1; }
+
+  public final boolean isVBO() { return vboUsage; }
+
+  public final Buffer getBuffer() { return buffer; }
+
+  public final int getComponentNumber() { return components; }
+
+  public final int getComponentType() { return dataType; }
+
+  public final int getComponentSize() {
+    if(clazz==ByteBuffer.class) {
+        return GLBuffers.SIZEOF_BYTE;
+    }
+    if(clazz==ShortBuffer.class) {
+        return GLBuffers.SIZEOF_SHORT;
+    }
+    if(clazz==IntBuffer.class) {
+        return GLBuffers.SIZEOF_INT;
+    }
+    if(clazz==FloatBuffer.class) {
+        return GLBuffers.SIZEOF_FLOAT;
+    }
+    throw new GLException("Given Buffer Class not supported: "+clazz+":\n\t"+this);
+  }
+
+  public final int getElementNumber() {
+    if(null==buffer) return 0;
+    return ( buffer.position()==0 ) ? ( buffer.limit() / components ) : ( buffer.position() / components ) ;
+  }
+
+  public final boolean getNormalized() { return normalized; }
+
+  public final int getStride() { return stride; }
+
+  public final Class getBufferClass() { return clazz; }
+
+  public void destroy(GL gl) {
+    this.buffer = null;
+    this.components = 0;
+    this.stride=0;
+    this.strideB=0;
+    this.strideL=0;
+    this.vboName=0;
+    this.vboUsage=false;
+    this.bufferOffset=0;
+  }
+
+  public String toString() {
+    return "GLArrayDataWrapper["+name+
+                       ", index "+index+
+                       ", location "+location+
+                       ", isVertexAttribute "+isVertexAttribute+
+                       ", dataType "+dataType+ 
+                       ", bufferClazz "+clazz+ 
+                       ", elements "+getElementNumber()+
+                       ", components "+components+ 
+                       ", stride "+stride+"u "+strideB+"b "+strideL+"c"+
+                       ", buffer "+buffer+ 
+                       ", offset "+bufferOffset+ 
+                       ", vboUsage "+vboUsage+ 
+                       ", vboName "+vboName+ 
+                       "]";
+  }
+
+  public static final Class getBufferClass(int dataType) {
+    switch(dataType) {
+        case GL.GL_BYTE:
+        case GL.GL_UNSIGNED_BYTE:
+            return ByteBuffer.class;
+        case GL.GL_SHORT:
+        case GL.GL_UNSIGNED_SHORT:
+            return ShortBuffer.class;
+        case GL2ES1.GL_FIXED:
+            return IntBuffer.class;
+        case GL.GL_FLOAT:
+            return FloatBuffer.class;
+        default:    
+            throw new GLException("Given OpenGL data type not supported: "+dataType);
+    }
+  }
+
+  public void setName(String newName) {
+    location = -1;
+    name = newName;
+  }
+
+  public void    setVBOUsage(boolean vboUsage) {
+    this.vboUsage=vboUsage;
+  }
+
+  public void    setVBOName(int vboName) {
+    this.vboName=vboName;
+    setVBOUsage(vboName>0);
+  }
+
+  protected void init(String name, int index, int comps, int dataType, boolean normalized, int stride, Buffer data, 
+                      boolean isVertexAttribute, 
+                      int vboName, long bufferOffset)
+    throws GLException
+  {
+    this.isVertexAttribute = isVertexAttribute;
+    this.index = index;
+    this.location = -1;
+    // We can't have any dependence on the FixedFuncUtil class here for build bootstrapping reasons
+    this.name = (null==name)?FixedFuncPipeline.getPredefinedArrayIndexName(index):name;
+    if(null==this.name) {
+        throw new GLException("Not a valid GL array index: "+index);
+    }
+    this.dataType = dataType;
+    this.clazz = getBufferClass(dataType);
+    switch(dataType) {
+        case GL.GL_BYTE:
+        case GL.GL_UNSIGNED_BYTE:
+        case GL.GL_SHORT:
+        case GL.GL_UNSIGNED_SHORT:
+        case GL2ES1.GL_FIXED:
+            this.normalized = normalized;
+            break;
+        default:    
+            this.normalized = false;
+    }
+
+    int bpc = getComponentSize();
+    if(0<stride && stride<comps*bpc) {
+        throw new GLException("stride ("+stride+") lower than component bytes, "+comps+" * "+bpc);
+    }
+    if(0<stride && stride%bpc!=0) {
+        throw new GLException("stride ("+stride+") not a multiple of bpc "+bpc);
+    }
+    this.buffer = data;
+    this.components = comps;
+    this.stride=stride;
+    this.strideB=(0==stride)?comps*bpc:stride;
+    this.strideL=(0==stride)?comps:strideB/bpc;
+    this.vboName=vboName;
+    this.vboUsage=vboName>0;
+    this.bufferOffset=bufferOffset;
+  }
+
+  protected GLArrayDataWrapper() { }
+
+  protected int index;
+  protected int location;
+  protected String name;
+  protected int components;
+  protected int dataType;
+  protected boolean normalized;
+  protected int stride;  // user given stride
+  protected int strideB; // stride in bytes
+  protected int strideL; // stride in logical components
+  protected Class clazz;
+  protected Buffer buffer;
+  protected boolean isVertexAttribute;
+
+  protected long bufferOffset;
+  protected int vboName;
+  protected boolean vboUsage;
+}
+