diff options
Diffstat (limited to 'src/com/jogamp/graph/curve/opengl/RegionRenderer.java')
| -rwxr-xr-x | src/com/jogamp/graph/curve/opengl/RegionRenderer.java | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/src/com/jogamp/graph/curve/opengl/RegionRenderer.java b/src/com/jogamp/graph/curve/opengl/RegionRenderer.java new file mode 100755 index 000000000..e75ca25cd --- /dev/null +++ b/src/com/jogamp/graph/curve/opengl/RegionRenderer.java @@ -0,0 +1,388 @@ +/**
+ * 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 com.jogamp.graph.curve.opengl;
+
+import java.nio.FloatBuffer;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+
+import javax.media.opengl.GL2ES2;
+import javax.media.opengl.GLAutoDrawable;
+import javax.media.opengl.GLContext;
+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.RegionFactory;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.graph.geom.Vertex;
+
+import jogamp.opengl.Debug;
+import com.jogamp.opengl.util.PMVMatrix;
+import com.jogamp.opengl.util.glsl.ShaderCode;
+import com.jogamp.opengl.util.glsl.ShaderProgram;
+import com.jogamp.opengl.util.glsl.ShaderState;
+
+public class RegionRenderer {
+ protected static final boolean DEBUG = Debug.debug("RegionRenderer");
+
+ private ShaderState st;
+ private PMVMatrix pmvMatrix = new PMVMatrix();
+
+ /**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 float sharpness = 0.5f;
+ private float alpha = 1.0f;
+ private float strength = 3.0f;
+ private boolean initialized = false;
+
+ private int regionType = Region.SINGLE_PASS;
+
+ private GLContext context;
+ private FloatBuffer color = FloatBuffer.allocate(3);
+ private HashMap<Integer, Region> regions = new HashMap<Integer, Region>();
+
+ /** Create a Hardware accelerated Region Renderer
+ * @param context OpenGL rendering context
+ * @param factory optional Point.Factory for Vertex construction. Default is Vertex.Factory.
+ */
+ public RegionRenderer(GLContext context) {
+ this.context = context;
+ init(context, 0.5f);
+ }
+ /** Create a Hardware accelerated Region Renderer
+ * @param context OpenGL rendering context
+ * @param type region type (single or multipass)
+ */
+ public RegionRenderer(GLContext context, int type) {
+ this.context = context;
+ this.regionType = type;
+ init(context, 0.5f);
+ }
+
+ private boolean init(GLContext context, float sharpvalue){
+ if(initialized){
+ if(DEBUG) {
+ System.err.println("HWRegionRenderer: Already initialized!");
+ }
+ return true;
+ }
+ sharpness = sharpvalue;
+
+ GL2ES2 gl = context.getGL().getGL2ES2();
+
+ 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("HWRegionRenderer: VBO Supported = " + VBOsupported);
+ }
+
+ if(!VBOsupported){
+ return false;
+ }
+
+ gl.setSwapInterval(1);
+
+ gl.glEnable(GL2ES2.GL_BLEND);
+ gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA);
+
+ initShader(gl);
+
+ 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();
+ resetMatrix();
+
+ if(!st.glUniform(gl, new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf()))) {
+ if(DEBUG){
+ System.err.println("Error setting PMVMatrix in shader: "+st);
+ }
+ return false;
+ }
+ if(!st.glUniform(gl, new GLUniformData("p1y", sharpness))) {
+ if(DEBUG){
+ System.err.println("Error setting sharpness in shader: "+st);
+ }
+ return false;
+ }
+ if(!st.glUniform(gl, new GLUniformData("g_alpha", alpha))) {
+ if(DEBUG){
+ System.err.println("Error setting global alpha in shader: "+st);
+ }
+ return false;
+ }
+ if(!st.glUniform(gl, new GLUniformData("g_color", 3, color))) {
+ if(DEBUG){
+ System.err.println("Error setting global color in shader: "+st);
+ }
+ return false;
+ }
+ if(!st.glUniform(gl, new GLUniformData("a_strength", strength))) {
+ System.err.println("Error setting antialias strength in shader: "+st);
+ }
+ st.glUseProgram(gl, false);
+
+ if(DEBUG) {
+ System.err.println("HWRegionRenderer initialized: " + Thread.currentThread()+" "+st);
+ }
+ initialized = true;
+ return true;
+ }
+
+ public float getAlpha() {
+ return alpha;
+ }
+ public void setAlpha(float alpha_t) {
+ alpha = alpha_t;
+ }
+
+ public void setColor(float r, float g, float b){
+ color.put(r);
+ color.put(g);
+ color.put(b);
+ color.rewind();
+ }
+
+ public void rotate(float angle, float x, float y, float z){
+ pmvMatrix.glRotatef(angle, x, y, z);
+ }
+ public void translate(float x, float y, float z){
+ pmvMatrix.glTranslatef(x, y, z);
+ }
+
+ public void resetMatrix(){
+ pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
+ pmvMatrix.glLoadIdentity();
+ }
+
+ /**
+ * @param drawable
+ * @param angle
+ * @param ratio
+ * @param near
+ * @param far
+ * @return
+ */
+ public boolean reshape(GLAutoDrawable drawable, float angle, float ratio, float near, float far){
+ pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+ pmvMatrix.glLoadIdentity();
+ pmvMatrix.gluPerspective(angle, ratio, near, far);
+
+ if(null==st) {
+ if(DEBUG){
+ System.err.println("HWRegionRenderer: Shader State is null, or not");
+ }
+ return false;
+ }
+ GL2ES2 gl = drawable.getGL().getGL2ES2();
+
+ st.glUseProgram(gl, true);
+ GLUniformData ud = st.getUniform("mgl_PMVMatrix");
+ if(null!=ud) {
+ st.glUniform(gl, ud);
+ }
+ st.glUseProgram(gl, false);
+ return true;
+ }
+
+ private void initShader(GL2ES2 gl) {
+ ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, RegionRenderer.class,
+ "shader", "shader/bin", "curverenderer");
+ ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, RegionRenderer.class,
+ "shader", "shader/bin", "curverenderer");
+
+ ShaderProgram sp = new ShaderProgram();
+ sp.add(rsVp);
+ sp.add(rsFp);
+
+ if(!sp.link(gl, System.err)) {
+ throw new GLException("HWRegionRenderer: 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");
+ }
+
+ private Region createRegion(OutlineShape outlineShape) {
+ Region region = RegionFactory.create(context, st, regionType);
+
+ outlineShape.transformOutlines(OutlineShape.QUADRATIC_NURBS);
+
+ ArrayList<Triangle<Vertex>> triangles = (ArrayList<Triangle<Vertex>>) outlineShape.triangulate(sharpness);
+ ArrayList<Vertex> vertices = (ArrayList<Vertex>) outlineShape.getVertices();
+ region.addVertices(vertices);
+ region.addTriangles(triangles);
+
+ region.update();
+ return region;
+ }
+
+ private Region createRegion(OutlineShape[] outlineShapes) {
+ Region region = RegionFactory.create(context, st, regionType);
+
+ int numVertices = region.getNumVertices();
+
+ for(OutlineShape outlineShape:outlineShapes){
+ outlineShape.transformOutlines(OutlineShape.QUADRATIC_NURBS);
+
+ ArrayList<Triangle<Vertex>> triangles = outlineShape.triangulate(sharpness);
+ region.addTriangles(triangles);
+
+ ArrayList<Vertex> vertices = outlineShape.getVertices();
+ for(Vertex vert:vertices){
+ vert.setId(numVertices++);
+ }
+ region.addVertices(vertices);
+ }
+
+ region.update();
+ return region;
+ }
+
+
+ /** Render outline in 3D space at the position provided
+ * the triangles of the shapes will be generated, if not yet generated
+ * @param outlineShape the OutlineShape to Render.
+ * @param position the initial translation of the outlineShape.
+ * @throws Exception if HwRegionRenderer not initialized
+ */
+ public void renderOutlineShape(OutlineShape outlineShape, float[] position) throws Exception{
+ if(!initialized){
+ throw new Exception("HWRegionRenderer: not initialized!");
+ }
+ int hashCode = getHashCode(outlineShape);
+ Region region = regions.get(hashCode);
+
+ if(null == region) {
+ region = createRegion(outlineShape);
+ regions.put(hashCode, region);
+ }
+
+ GL2ES2 gl = context.getGL().getGL2ES2();
+ st.glUseProgram(gl, true);
+ GLUniformData ud = st.getUniform("mgl_PMVMatrix");
+ if(null!=ud) {
+ st.glUniform(gl, ud);
+ }
+ if(!st.glUniform(gl, new GLUniformData("g_alpha", alpha))) {
+ System.err.println("Error setting global alpha in shader: "+st);
+ }
+ GLUniformData gcolorUD = st.getUniform("g_color");
+ if(null!=gcolorUD) {
+ st.glUniform(gl, gcolorUD);
+ }
+ if(!st.glUniform(gl, new GLUniformData("a_strength", strength))) {
+ System.err.println("Error setting antialias strength in shader: "+st);
+ }
+
+ region.render(null, 0, 0, 0);
+ st.glUseProgram(gl, false);
+ }
+
+ /** Render a list of Outline shapes combined in one region
+ * at the position provided the triangles of the
+ * shapes will be generated, if not yet generated
+ * @param outlineShapes the list of OutlineShapes to Render.
+ * @param position the initial translation of the outlineShapes.
+ * @throws Exception if HwRegionRenderer not initialized
+ */
+ public void renderOutlineShapes(OutlineShape[] outlineShapes, float[] position) throws Exception{
+ if(!initialized){
+ throw new Exception("HWRegionRenderer: not initialized!");
+ }
+
+ int hashCode = getHashCode(outlineShapes);
+ Region region = regions.get(hashCode);
+
+ if(null == region) {
+ region = createRegion(outlineShapes);
+ regions.put(hashCode, region);
+ }
+
+ GL2ES2 gl = context.getGL().getGL2ES2();
+ st.glUseProgram(gl, true);
+ GLUniformData ud = st.getUniform("mgl_PMVMatrix");
+ if(null!=ud) {
+ st.glUniform(gl, ud);
+ }
+ if(!st.glUniform(gl, new GLUniformData("g_alpha", alpha))) {
+ System.err.println("Error setting global alpha in shader: "+st);
+ }
+ GLUniformData gcolorUD = st.getUniform("g_color");
+ if(null!=gcolorUD) {
+ st.glUniform(gl, gcolorUD);
+ }
+ if(!st.glUniform(gl, new GLUniformData("a_strength", strength))) {
+ System.err.println("Error setting antialias strength in shader: "+st);
+ }
+ region.render(null, 0, 0, 0);
+ st.glUseProgram(gl, false);
+ }
+
+ private int getHashCode(OutlineShape outlineShape){
+ return outlineShape.hashCode();
+ }
+
+ private int getHashCode(OutlineShape[] outlineShapes){
+ int hashcode = 0;
+ for(OutlineShape outlineShape:outlineShapes){
+ hashcode += getHashCode(outlineShape);
+ }
+ return hashcode;
+ }
+
+ /** Clears the cached string curves
+ * and destorys underlying buffers
+ */
+ public void clearCached() {
+ Iterator<Region> iterator = regions.values().iterator();
+ while(iterator.hasNext()){
+ Region region = iterator.next();
+ region.destroy();
+ }
+ regions.clear();
+ }
+}
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