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/**
* Copyright 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.graph.curve.opengl;
import java.nio.FloatBuffer;
import javax.media.opengl.GL2ES2;
import javax.media.opengl.GLUniformData;
import javax.media.opengl.fixedfunc.GLMatrixFunc;
import jogamp.graph.curve.opengl.shader.UniformNames;
import com.jogamp.common.os.Platform;
import com.jogamp.graph.curve.opengl.RenderState;
import com.jogamp.graph.geom.Vertex;
import com.jogamp.opengl.util.PMVMatrix;
import com.jogamp.opengl.util.glsl.ShaderState;
public class RenderStateImpl implements RenderState {
private final ShaderState st;
private final Vertex.Factory<? extends Vertex> pointFactory;
private final PMVMatrix pmvMatrix;
private final GLUniformData gcu_PMVMatrix;
/**
* Sharpness is equivalent to the texture-coord component <i>t</i>
* on the off-curve vertex. Higher values of sharpness will
* result in higher curvature.
*/
private final GLUniformData gcu_Sharpness;
private final GLUniformData gcu_Alpha;
private final GLUniformData gcu_ColorStatic;
private final GLUniformData gcu_Strength;
public static final RenderState getRenderState(GL2ES2 gl) {
return (RenderState) gl.getContext().getAttachedObject(RenderState.class.getName());
}
public RenderStateImpl(ShaderState st, Vertex.Factory<? extends Vertex> pointFactory, PMVMatrix pmvMatrix) {
this.st = st;
this.pointFactory = pointFactory;
this.pmvMatrix = pmvMatrix;
this.gcu_PMVMatrix = new GLUniformData(UniformNames.gcu_PMVMatrix, 4, 4, pmvMatrix.glGetPMvMatrixf());
st.ownUniform(gcu_PMVMatrix);
gcu_Sharpness = new GLUniformData(UniformNames.gcu_P1Y, 0.5f);
st.ownUniform(gcu_PMVMatrix);
gcu_Alpha = new GLUniformData(UniformNames.gcu_Alpha, 1.0f);
st.ownUniform(gcu_Alpha);
gcu_ColorStatic = new GLUniformData(UniformNames.gcu_ColorStatic, 3, FloatBuffer.allocate(3));
st.ownUniform(gcu_ColorStatic);
gcu_Strength = new GLUniformData(UniformNames.gcu_Strength, 3.0f);
st.ownUniform(gcu_Strength);
}
public RenderStateImpl(ShaderState st, Vertex.Factory<? extends Vertex> pointFactory) {
this(st, pointFactory, new PMVMatrix());
pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
pmvMatrix.glLoadIdentity();
pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
pmvMatrix.glLoadIdentity();
pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
pmvMatrix.glLoadIdentity();
}
public final ShaderState getShaderState() { return st; }
public final Vertex.Factory<? extends Vertex> getPointFactory () { return pointFactory; }
public final PMVMatrix pmvMatrix() { return pmvMatrix; }
public final GLUniformData getPMVMatrix() { return gcu_PMVMatrix; }
public final GLUniformData getSharpness() { return gcu_Sharpness; }
public final GLUniformData getAlpha() { return gcu_Alpha; }
public final GLUniformData getColorStatic() { return gcu_ColorStatic; }
public final GLUniformData getStrength() { return gcu_Strength; }
public void destroy(GL2ES2 gl) {
st.destroy(gl);
}
public final RenderState attachTo(GL2ES2 gl) {
return (RenderState) gl.getContext().attachObject(RenderState.class.getName(), this);
}
public final boolean detachFrom(GL2ES2 gl) {
RenderState _rs = (RenderState) gl.getContext().getAttachedObject(RenderState.class.getName());
if(_rs == this) {
gl.getContext().detachObject(RenderState.class.getName());
return true;
}
return false;
}
public StringBuilder toString(StringBuilder sb) {
if(null==sb) {
sb = new StringBuilder();
}
sb.append("RenderState[");
st.toString(sb).append(Platform.getNewline());
sb.append("]");
return sb;
}
public String toString() {
return toString(null).toString();
}
}
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