diff options
Diffstat (limited to 'src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java')
| -rw-r--r-- | src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java | 284 |
1 files changed, 260 insertions, 24 deletions
diff --git a/src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java b/src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java index faaf72a99..a9e258f36 100644 --- a/src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java +++ b/src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java @@ -27,13 +27,32 @@ */ package com.jogamp.graph.curve.opengl; +import java.nio.FloatBuffer; + import javax.media.opengl.GL2ES2; import javax.media.opengl.GLException; +import javax.media.opengl.fixedfunc.GLMatrixFunc; +import com.jogamp.opengl.util.glsl.ShaderCode; +import com.jogamp.opengl.util.glsl.ShaderState; +import com.jogamp.opengl.util.PMVMatrix; import com.jogamp.graph.curve.OutlineShape; import com.jogamp.graph.curve.Region; -public abstract class RegionRenderer extends Renderer { +/** + * OpenGL {@link Region} renderer + * <p> + * All OpenGL related operations regarding {@link Region}s + * are passed through an instance of this class. + * </p> + */ +public abstract class RegionRenderer { + protected static final boolean DEBUG = Region.DEBUG; + protected static final boolean DEBUG_INSTANCE = Region.DEBUG_INSTANCE; + + public static boolean isWeightValid(float v) { + return 0.0f <= v && v <= 1.9f ; + } /** * Create a Hardware accelerated Region Renderer. @@ -45,39 +64,256 @@ public abstract class RegionRenderer extends Renderer { return new jogamp.graph.curve.opengl.RegionRendererImpl01(rs, renderModes); } + protected final int renderModes; + protected final RenderState rs; + + protected int vp_width; + protected int vp_height; + protected boolean initialized; + private boolean vboSupported = false; + + public final boolean isInitialized() { return initialized; } + + public final int getWidth() { return vp_width; } + public final int getHeight() { return vp_height; } + + public final float getWeight() { return rs.getWeight().floatValue(); } + public final float getAlpha() { return rs.getAlpha().floatValue(); } + public final PMVMatrix getMatrix() { return rs.pmvMatrix(); } + + /** + * Implementation shall load, compile and link the shader program and leave it active. + * @param gl referencing the current GLContext to which the ShaderState is bound to + * @return + */ + protected abstract boolean initImpl(GL2ES2 gl); + + /** Delete and clean the associated OGL objects */ + protected abstract void destroyImpl(GL2ES2 gl); + + ////////////////////////////////////// + + /** + * @param rs the used {@link RenderState} + * @param renderModes bit-field of modes + */ protected RegionRenderer(RenderState rs, int renderModes) { - super(rs, renderModes); + this.rs = rs; + this.renderModes = renderModes; + } + + public final int getRenderModes() { + return renderModes; } + public final boolean usesVariableCurveWeight() { return Region.isNonUniformWeight(renderModes); } - /** Render an {@link OutlineShape} in 3D space at the position provided - * the triangles of the shapes will be generated, if not yet generated - * @param region the OutlineShape to Render. - * @param texWidth desired texture width for multipass-rendering. - * The actual used texture-width is written back when mp rendering is enabled, otherwise the store is untouched. - * @throws Exception if HwRegionRenderer not initialized + /** + * @return true if Region's renderModes contains all bits as this Renderer's renderModes + * except {@link Region#VARIABLE_CURVE_WEIGHT_BIT}, otherwise false. */ - public final void draw(GL2ES2 gl, Region region, int[/*1*/] texWidth) { - if(!isInitialized()) { - throw new GLException("RegionRenderer: not initialized!"); - } - if( !areRenderModesCompatible(region) ) { - throw new GLException("Incompatible render modes, : region modes "+region.getRenderModes()+ - " doesn't contain renderer modes "+this.getRenderModes()); - } - drawImpl(gl, region, texWidth); + public final boolean areRenderModesCompatible(final Region region) { + final int cleanRenderModes = getRenderModes() & ( Region.VARIABLE_CURVE_WEIGHT_BIT ); + return cleanRenderModes == ( region.getRenderModes() & cleanRenderModes ); } + public final boolean isVBOSupported() { return vboSupported; } + /** - * Usually just dispatched the draw call to the Region's draw implementation, - * e.g. {@link com.jogamp.graph.curve.opengl.GLRegion#draw(GL2ES2, RenderState, int, int, int[]) GLRegion#draw(GL2ES2, RenderState, int, int, int[])}. + * Initialize shader and bindings for GPU based rendering bound to the given GL object's GLContext + * if not initialized yet. + * <p>Leaves the renderer enabled, ie ShaderState.</p> + * <p>Shall be called by a {@code draw()} method, e.g. {@link RegionRenderer#draw(GL2ES2, Region, int)}</p> + * + * @param gl referencing the current GLContext to which the ShaderState is bound to + * @throws GLException if initialization failed */ - protected abstract void drawImpl(GL2ES2 gl, Region region, int[] texWidth); + public final void init(GL2ES2 gl) throws GLException { + if(initialized){ + return; + } + vboSupported = gl.isFunctionAvailable("glGenBuffers") && + gl.isFunctionAvailable("glBindBuffer") && + gl.isFunctionAvailable("glBufferData") && + gl.isFunctionAvailable("glDrawElements") && + gl.isFunctionAvailable("glVertexAttribPointer") && + gl.isFunctionAvailable("glDeleteBuffers"); + + if(DEBUG) { + System.err.println("TextRendererImpl01: VBO Supported = " + isVBOSupported()); + } + + if(!vboSupported){ + throw new GLException("VBO not supported"); + } + + rs.attachTo(gl); + + gl.glEnable(GL2ES2.GL_BLEND); + gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA); // FIXME: alpha blending stage ? + + initialized = initImpl(gl); + if(!initialized) { + throw new GLException("Shader initialization failed"); + } - @Override - protected void destroyImpl(GL2ES2 gl) { - // nop + if(!rs.getShaderState().uniform(gl, rs.getPMVMatrix())) { + throw new GLException("Error setting PMVMatrix in shader: "+rs.getShaderState()); + } + + if( Region.isNonUniformWeight( getRenderModes() ) ) { + if(!rs.getShaderState().uniform(gl, rs.getWeight())) { + throw new GLException("Error setting weight in shader: "+rs.getShaderState()); + } + } + + if(!rs.getShaderState().uniform(gl, rs.getAlpha())) { + throw new GLException("Error setting global alpha in shader: "+rs.getShaderState()); + } + + if(!rs.getShaderState().uniform(gl, rs.getColorStatic())) { + throw new GLException("Error setting global color in shader: "+rs.getShaderState()); + } + } + + public final void destroy(GL2ES2 gl) { + if(!initialized){ + if(DEBUG_INSTANCE) { + System.err.println("TextRenderer: Not initialized!"); + } + return; + } + rs.getShaderState().useProgram(gl, false); + destroyImpl(gl); + rs.destroy(gl); + initialized = false; } + public final RenderState getRenderState() { return rs; } + public final ShaderState getShaderState() { return rs.getShaderState(); } -} + public final void enable(GL2ES2 gl, boolean enable) { + rs.getShaderState().useProgram(gl, enable); + } + + public final void setWeight(GL2ES2 gl, float v) { + if( !isWeightValid(v) ) { + throw new IllegalArgumentException("Weight out of range"); + } + rs.getWeight().setData(v); + if(null != gl && rs.getShaderState().inUse() && Region.isNonUniformWeight( getRenderModes() ) ) { + rs.getShaderState().uniform(gl, rs.getWeight()); + } + } + + public final void setAlpha(GL2ES2 gl, float alpha_t) { + rs.getAlpha().setData(alpha_t); + if(null != gl && rs.getShaderState().inUse()) { + rs.getShaderState().uniform(gl, rs.getAlpha()); + } + + } + + public final void getColorStatic(GL2ES2 gl, float[] rgb) { + FloatBuffer fb = (FloatBuffer) rs.getColorStatic().getBuffer(); + rgb[0] = fb.get(0); + rgb[1] = fb.get(1); + rgb[2] = fb.get(2); + } + + public final void setColorStatic(GL2ES2 gl, float r, float g, float b){ + FloatBuffer fb = (FloatBuffer) rs.getColorStatic().getBuffer(); + fb.put(0, r); + fb.put(1, g); + fb.put(2, b); + if(null != gl && rs.getShaderState().inUse()) { + rs.getShaderState().uniform(gl, rs.getColorStatic()); + } + } + + public final void rotate(GL2ES2 gl, float angle, float x, float y, float z) { + rs.pmvMatrix().glRotatef(angle, x, y, z); + updateMatrix(gl); + } + + public final void translate(GL2ES2 gl, float x, float y, float z) { + rs.pmvMatrix().glTranslatef(x, y, z); + updateMatrix(gl); + } + + public final void scale(GL2ES2 gl, float x, float y, float z) { + rs.pmvMatrix().glScalef(x, y, z); + updateMatrix(gl); + } + + public final void resetModelview(GL2ES2 gl) { + rs.pmvMatrix().glMatrixMode(GLMatrixFunc.GL_MODELVIEW); + rs.pmvMatrix().glLoadIdentity(); + updateMatrix(gl); + } + + public final void updateMatrix(GL2ES2 gl) { + if(initialized && null != gl && rs.getShaderState().inUse()) { + rs.getShaderState().uniform(gl, rs.getPMVMatrix()); + } + } + + /** No PMVMatrix operation is performed here. PMVMatrix will be updated if gl is not null. */ + public final boolean reshapeNotify(GL2ES2 gl, int width, int height) { + this.vp_width = width; + this.vp_height = height; + updateMatrix(gl); + return true; + } + + public final boolean reshapePerspective(GL2ES2 gl, float angle, int width, int height, float near, float far) { + this.vp_width = width; + this.vp_height = height; + final float ratio = (float)width/(float)height; + final PMVMatrix p = rs.pmvMatrix(); + p.glMatrixMode(GLMatrixFunc.GL_PROJECTION); + p.glLoadIdentity(); + p.gluPerspective(angle, ratio, near, far); + updateMatrix(gl); + return true; + } + + public final boolean reshapeOrtho(GL2ES2 gl, int width, int height, float near, float far) { + this.vp_width = width; + this.vp_height = height; + final PMVMatrix p = rs.pmvMatrix(); + p.glMatrixMode(GLMatrixFunc.GL_PROJECTION); + p.glLoadIdentity(); + p.glOrthof(0, width, 0, height, near, far); + updateMatrix(gl); + return true; + } + + protected String getVertexShaderName() { + return "curverenderer" + getImplVersion(); + } + + protected String getFragmentShaderName() { + final String version = getImplVersion(); + final String pass = Region.isVBAA(renderModes) ? "-2pass" : "-1pass" ; + final String weight = Region.isNonUniformWeight(renderModes) ? "-weight" : "" ; + return "curverenderer" + version + pass + weight; + } + + // FIXME: Really required to have sampler2D def. precision ? If not, we can drop getFragmentShaderPrecision(..) and use default ShaderCode .. + public static final String es2_precision_fp = "\nprecision mediump float;\nprecision mediump int;\nprecision mediump sampler2D;\n"; + + protected String getFragmentShaderPrecision(GL2ES2 gl) { + if( gl.isGLES() ) { + return es2_precision_fp; + } + if( ShaderCode.requiresGL3DefaultPrecision(gl) ) { + return ShaderCode.gl3_default_precision_fp; + } + return null; + } + + protected String getImplVersion() { + return "01"; + } +}
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