From 4ed4dc3847d8d53a3424011f3d56b00ef246a81e Mon Sep 17 00:00:00 2001 From: Sven Gothel Date: Tue, 29 Mar 2011 14:29:50 +0200 Subject: Refactor / Use font name as file path, if not a java font --- src/com/jogamp/graph/curve/HwTextRenderer.java | 372 +++++++++++++++++++++++++ 1 file changed, 372 insertions(+) create mode 100644 src/com/jogamp/graph/curve/HwTextRenderer.java (limited to 'src/com/jogamp/graph/curve/HwTextRenderer.java') diff --git a/src/com/jogamp/graph/curve/HwTextRenderer.java b/src/com/jogamp/graph/curve/HwTextRenderer.java new file mode 100644 index 000000000..c5f11d522 --- /dev/null +++ b/src/com/jogamp/graph/curve/HwTextRenderer.java @@ -0,0 +1,372 @@ +/** + * 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; + +import java.nio.FloatBuffer; +import java.util.HashMap; +import java.util.Iterator; + +import javax.media.opengl.GL2ES2; +import javax.media.opengl.GLException; +import javax.media.opengl.GLUniformData; +import javax.media.opengl.fixedfunc.GLMatrixFunc; + +import jogamp.graph.curve.text.GlyphString; +import jogamp.graph.font.FontInt; +import jogamp.graph.font.typecast.TypecastFontFactory; +import jogamp.graph.geom.plane.AffineTransform; +import jogamp.graph.geom.plane.Path2D; + +import com.jogamp.common.util.ReflectionUtil; +import com.jogamp.graph.font.Font; +import com.jogamp.graph.font.FontFactory; +import com.jogamp.graph.geom.Vertex; +import com.jogamp.graph.geom.opengl.SVertex; +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 HwTextRenderer { + protected static final boolean DEBUG = Debug.debug("TextRenderer"); + static final boolean FONTTOOL_CUSTOM = false; + + private static FontFactory fontFactory; + + static { + FontFactory _fontFactory = null; + + if(FONTTOOL_CUSTOM) { + _fontFactory = (FontFactory) ReflectionUtil.createInstance("jogamp.graph.font.ttf.TTFFontFactory", HwTextRenderer.class.getClassLoader()); + if(null!=_fontFactory) { + System.err.println("Using custom font tool"); + } + } + if(null==_fontFactory) { + _fontFactory = new TypecastFontFactory(); + } + fontFactory = _fontFactory; + } + + + public static FontFactory getFontFactory() { + return fontFactory; + } + + private ShaderState st = new ShaderState(); + + private PMVMatrix pmvMatrix = new PMVMatrix(); + private GLUniformData mgl_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 GLUniformData mgl_sharpness = new GLUniformData("p1y", 0.5f); + private 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", 1.8f); + + private boolean initialized = false; + + private int regionType = Region.SINGLE_PASS; + + private HashMap strings = new HashMap(); + private final Vertex.Factory pointFactory; + + int win_width = 0; + int win_height = 0; + + /** + * Create a Hardware accelerated Text Renderer. + * @param context OpenGL rendering context + * @param factory optional Point.Factory for Vertex construction. Default is Vertex.Factory. + */ + public HwTextRenderer(Vertex.Factory factory, int type) { + this.pointFactory = (null != factory) ? factory : SVertex.factory(); + this.regionType = type; + } + + public Font createFont(Vertex.Factory factory, String name) { + return fontFactory.createFont(factory, name); + } + + + public Font createFont(Vertex.Factory factory, + String[] families, + String style, + String variant, + String weight) { + return fontFactory.createFont(factory, families, style, variant, weight); + } + + /** + * Initialize shaders and bindings for GPU based text Rendering, + * should be called only once. + * Leaves the renderer enables, ie ShaderState on. + * + * @param drawable the current drawable + * @param shapvalue shaprness around the off-curve vertices + * @return true if init succeeded, false otherwise + */ + public boolean init(GL2ES2 gl){ + if(initialized){ + if(DEBUG) { + System.err.println("HWTextRenderer: Already initialized!"); + } + return true; + } + + 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("HWTextRenderer: 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, HwTextRenderer.class, + "../shader", "../shader/bin", "curverenderer"); + ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, HwTextRenderer.class, + "../shader", "../shader/bin", "curverenderer"); + + ShaderProgram sp = new ShaderProgram(); + sp.add(rsVp); + sp.add(rsFp); + + if(!sp.link(gl, System.err)) { + throw new GLException("HWTextRenderer: Couldn't link program: "+sp); + } + + 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(); + resetMatrix(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("HWTextRenderer initialized: " + Thread.currentThread()+" "+st); + } + initialized = true; + return true; + } + + public void dispose(GL2ES2 gl) { + st.destroy(gl); + clearCached(); + } + + public float getAlpha() { + return mgl_alpha.floatValue(); + } + + public ShaderState getShaderState() { + return st; + } + + public void setAlpha(GL2ES2 gl, float alpha_t) { + mgl_alpha.setData(alpha_t); + if(null != gl && st.inUse()) { + st.glUniform(gl, mgl_alpha); + } + } + + 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); + } + } + + public void rotate(GL2ES2 gl, float angle, float x, float y, float z){ + pmvMatrix.glRotatef(angle, x, y, z); + if(null != gl && st.inUse()) { + st.glUniform(gl, mgl_PMVMatrix); + } + } + public void translate(GL2ES2 gl, float x, float y, float z){ + pmvMatrix.glTranslatef(x, y, z); + if(null != gl && st.inUse()) { + st.glUniform(gl, mgl_PMVMatrix); + } + } + + public void resetMatrix(GL2ES2 gl){ + pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW); + pmvMatrix.glLoadIdentity(); + if(null != gl && st.inUse()) { + st.glUniform(gl, mgl_PMVMatrix); + } + } + + public void updateAllShaderValues(GL2ES2 gl) { + if(null != gl && st.inUse()) { + st.glUniform(gl, mgl_PMVMatrix); + st.glUniform(gl, mgl_alpha); + st.glUniform(gl, mgl_color); + st.glUniform(gl, mgl_strength); + } + } + + /** + * @param gl + * @param angle + * @param ratio + * @param near + * @param far + * @return + */ + public boolean reshape(GL2ES2 gl, float angle, int width, int height, float near, float far){ + win_width = width; + win_height = height; + float ratio = (float)width/(float)height; + pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION); + pmvMatrix.glLoadIdentity(); + pmvMatrix.gluPerspective(angle, ratio, near, far); + + st.glUniform(gl, mgl_PMVMatrix); + + return true; + } + + private GlyphString createString(GL2ES2 gl, Font font, int size, String str) { + AffineTransform affineTransform = new AffineTransform(pointFactory); + + Path2D[] paths = new Path2D[str.length()]; + ((FontInt)font).getOutline(str, size, affineTransform, paths); + + GlyphString glyphString = new GlyphString(pointFactory, font.getName(), str); + glyphString.createfromFontPath(paths, affineTransform); + + glyphString.generateRegion(gl.getContext(), mgl_sharpness.floatValue(), st, regionType); + return glyphString; + } + + + public void enable(GL2ES2 gl, boolean enable) { + if(null != gl) { + st.glUseProgram(gl, enable); + } + } + + /** Render the String in 3D space wrt to the font provided at the position provided + * the outlines will be generated, if not yet generated + * @param font font to be used + * @param str text to be rendered + * @param position the lower left corner of the string + * @param fontSize font size + * @param texSize texture size for multipass render + * @throws Exception if TextRenderer not initialized + */ + public void renderString3D(GL2ES2 gl, Font font, String str, float[] position, int fontSize, int texSize) { + if(!initialized){ + throw new GLException("HWTextRenderer: not initialized!"); + } + String fontStrHash = getTextHashCode(font, str, fontSize); + GlyphString glyphString = strings.get(fontStrHash); + if(null == glyphString) { + glyphString = createString(gl, font, fontSize, str); + strings.put(fontStrHash, glyphString); + } + + glyphString.renderString3D(pmvMatrix, win_width, win_height, texSize); + } + + private String getTextHashCode(Font font, String str, int fontSize) { + // FIXME: use integer hash code + return font.getName() + "." + str.hashCode() + "." + fontSize; + } + + /** Clears the cached string curves + * and destorys underlying buffers + */ + public void clearCached() { + Iterator iterator = strings.values().iterator(); + while(iterator.hasNext()){ + GlyphString glyphString = iterator.next(); + glyphString.destroy(); + } + strings.clear(); + } +} -- cgit v1.2.3