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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.GLException;
import javax.media.opengl.GLUniformData;
import javax.media.opengl.fixedfunc.GLMatrixFunc;
import com.jogamp.graph.curve.OutlineShape;
import com.jogamp.graph.curve.Region;
import com.jogamp.graph.curve.opengl.RegionRenderer;
import com.jogamp.graph.geom.Vertex;
import com.jogamp.opengl.util.glsl.ShaderCode;
import com.jogamp.opengl.util.glsl.ShaderProgram;
import com.jogamp.opengl.util.glsl.ShaderState;
public class RegionRendererImpl01 extends RegionRenderer {
/**Sharpness is equivalent to the value of t value of texture coord
* on the off-curve vertex. The high value of sharpness will
* result in high curvature.
*/
private GLUniformData mgl_sharpness = new GLUniformData("p1y", 0.5f);
GLUniformData mgl_alpha = new GLUniformData("g_alpha", 1.0f);
private GLUniformData mgl_color = new GLUniformData("g_color", 3, FloatBuffer.allocate(3));
private GLUniformData mgl_strength = new GLUniformData("a_strength", 3.0f);
public RegionRendererImpl01(Vertex.Factory<? extends Vertex> factory, int type) {
super(factory, type);
}
protected boolean initImpl(GL2ES2 gl) {
boolean VBOsupported = gl.isFunctionAvailable("glGenBuffers") &&
gl.isFunctionAvailable("glBindBuffer") &&
gl.isFunctionAvailable("glBufferData") &&
gl.isFunctionAvailable("glDrawElements") &&
gl.isFunctionAvailable("glVertexAttribPointer") &&
gl.isFunctionAvailable("glDeleteBuffers");
if(DEBUG) {
System.err.println("RegionRenderer: VBO Supported = " + VBOsupported);
}
if(!VBOsupported){
return false;
}
gl.glEnable(GL2ES2.GL_BLEND);
gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA);
ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, RegionRendererImpl01.class,
"shader", "shader/bin", "curverenderer01");
ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, RegionRendererImpl01.class,
"shader", "shader/bin", "curverenderer01");
ShaderProgram sp = new ShaderProgram();
sp.add(rsVp);
sp.add(rsFp);
if(!sp.link(gl, System.err)) {
throw new GLException("RegionRenderer: Couldn't link program: "+sp);
}
st = new ShaderState();
st.attachShaderProgram(gl, sp);
gl.glBindAttribLocation(sp.id(), 0, "v_position");
gl.glBindAttribLocation(sp.id(), 1, "texCoord");
st.glUseProgram(gl, true);
pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
pmvMatrix.glLoadIdentity();
pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
pmvMatrix.glLoadIdentity();
pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
pmvMatrix.glLoadIdentity();
resetModelview(null);
mgl_PMVMatrix = new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf());
if(!st.glUniform(gl, mgl_PMVMatrix)) {
if(DEBUG){
System.err.println("Error setting PMVMatrix in shader: "+st);
}
return false;
}
if(!st.glUniform(gl, mgl_sharpness)) {
if(DEBUG){
System.err.println("Error setting sharpness in shader: "+st);
}
return false;
}
if(!st.glUniform(gl, mgl_alpha)) {
if(DEBUG){
System.err.println("Error setting global alpha in shader: "+st);
}
return false;
}
if(!st.glUniform(gl, mgl_color)) {
if(DEBUG){
System.err.println("Error setting global color in shader: "+st);
}
return false;
}
if(!st.glUniform(gl, mgl_strength)) {
System.err.println("Error setting antialias strength in shader: "+st);
}
if(DEBUG) {
System.err.println("RegionRendererImpl01 initialized: " + Thread.currentThread()+" "+st);
}
return true;
}
@Override
protected void disposeImpl(GL2ES2 gl) {
}
@Override
public float getAlpha() {
return mgl_alpha.floatValue();
}
@Override
public void setAlpha(GL2ES2 gl, float alpha_t) {
mgl_alpha.setData(alpha_t);
if(null != gl && st.inUse()) {
st.glUniform(gl, mgl_alpha);
}
}
@Override
public void setColor(GL2ES2 gl, float r, float g, float b){
FloatBuffer fb = (FloatBuffer) mgl_color.getBuffer();
fb.put(0, r);
fb.put(1, r);
fb.put(2, r);
if(null != gl && st.inUse()) {
st.glUniform(gl, mgl_color);
}
}
@Override
public void renderOutlineShape(GL2ES2 gl, OutlineShape outlineShape, float[] position, int texSize) {
if(!isInitialized()){
throw new GLException("RegionRendererImpl01: not initialized!");
}
int hashCode = getHashCode(outlineShape);
Region region = regions.get(hashCode);
if(null == region) {
region = createRegion(gl, outlineShape, mgl_sharpness.floatValue());
regions.put(hashCode, region);
}
region.render(pmvMatrix, vp_width, vp_height, texSize);
}
@Override
public void renderOutlineShapes(GL2ES2 gl, OutlineShape[] outlineShapes, float[] position, int texSize) {
if(!isInitialized()){
throw new GLException("RegionRendererImpl01: not initialized!");
}
int hashCode = getHashCode(outlineShapes);
Region region = regions.get(hashCode);
if(null == region) {
region = createRegion(gl, outlineShapes, mgl_sharpness.floatValue());
regions.put(hashCode, region);
}
region.render(pmvMatrix, vp_width, vp_height, texSize);
}
}
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