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package com.sun.opengl.impl.glsl;
import javax.media.opengl.*;
import javax.media.opengl.util.glsl.ShaderState;
import java.nio.*;
public class GLSLArrayDataServer extends GLArrayDataServer {
public GLSLArrayDataServer(String name, int comps, int dataType, boolean normalized,
int stride, Buffer buffer, int glBufferUsage) {
init(name, -1, comps, dataType, normalized, stride, buffer, 0, buffer.limit(), glBufferUsage, true);
}
public GLSLArrayDataServer(String name, int comps, int dataType, boolean normalized,
int stride, long bufferOffset) {
init(name, -1, comps, dataType, normalized, stride, null, bufferOffset, 0, -1, true);
}
public GLSLArrayDataServer(String name, int comps, int dataType, boolean normalized,
int initialSize, int glBufferUsage) {
init(name, -1, comps, dataType, normalized, 0, null, 0, initialSize, glBufferUsage, true);
}
protected void enableBufferGLImpl(GL gl, boolean enable) {
GL2ES2 glsl = gl.getGL2ES2();
ShaderState st = ShaderState.getCurrent();
if(null==st) {
throw new GLException("No ShaderState current");
}
if(enable) {
if(!st.glEnableVertexAttribArray(glsl, name)) {
throw new RuntimeException("Internal Error");
}
bufferEnabled = true;
if(vboUsage) {
gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vboName);
if(!bufferWritten) {
gl.glBufferData(GL.GL_ARRAY_BUFFER, buffer.limit() * getBufferCompSize(), buffer, glBufferUsage);
}
}
if ( ! st.glVertexAttribPointer(glsl, this) ) {
throw new RuntimeException("Internal Error");
}
bufferWritten=true;
} else {
if(!st.glDisableVertexAttribArray(glsl, name)) {
throw new RuntimeException("Internal Error");
}
bufferEnabled = false;
}
}
}
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