diff options
Diffstat (limited to 'src/com/jogamp/graph/curve/opengl/Renderer.java')
| -rw-r--r-- | src/com/jogamp/graph/curve/opengl/Renderer.java | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/com/jogamp/graph/curve/opengl/Renderer.java b/src/com/jogamp/graph/curve/opengl/Renderer.java new file mode 100644 index 000000000..a1755e003 --- /dev/null +++ b/src/com/jogamp/graph/curve/opengl/Renderer.java @@ -0,0 +1,161 @@ +package com.jogamp.graph.curve.opengl; + +import javax.media.opengl.GL2ES2; +import javax.media.opengl.GLUniformData; +import javax.media.opengl.fixedfunc.GLMatrixFunc; + +import jogamp.opengl.Debug; + +import com.jogamp.graph.curve.Region; +import com.jogamp.graph.geom.Vertex; +import com.jogamp.graph.geom.opengl.SVertex; +import com.jogamp.opengl.util.PMVMatrix; +import com.jogamp.opengl.util.glsl.ShaderState; + +public abstract class Renderer { + protected static final boolean DEBUG = Debug.debug("CurveRenderer"); + + protected abstract boolean initImpl(GL2ES2 gl); + + protected abstract void disposeImpl(GL2ES2 gl); + + /** + * Flushes all cached data + */ + public abstract void flushCash(); + + public abstract float getAlpha(); + + public abstract void setAlpha(GL2ES2 gl, float alpha_t); + + public abstract void setColor(GL2ES2 gl, float r, float g, float b); + + protected final Vertex.Factory<? extends Vertex> pointFactory; + protected ShaderState st = new ShaderState(); + protected PMVMatrix pmvMatrix = new PMVMatrix(); + protected GLUniformData mgl_PMVMatrix; + protected int regionType = Region.SINGLE_PASS; + protected int vp_width = 0; + protected int vp_height = 0; + + private boolean vboSupported = false; + private boolean initialized = false; + + protected Renderer(Vertex.Factory<? extends Vertex> factory, int type) { + this.regionType = type; + this.pointFactory = (null != factory) ? factory : SVertex.factory(); + } + + public Vertex.Factory<? extends Vertex> getFactory() { return pointFactory; } + + public final boolean isInitialized() { return initialized; } + + public final boolean isVBOSupported() { return vboSupported; } + + public final int getWidth() { return vp_width; } + public final int getHeight() { return vp_height; } + + /** + * Initialize shaders and bindings for GPU based rendering. + * Leaves the renderer enabled, ie ShaderState on. + * + * @param gl the current GL state + * @return true if succeeded, false otherwise + */ + public boolean init(GL2ES2 gl) { + if(initialized){ + if(DEBUG) { + System.err.println("TextRenderer: Already initialized!"); + } + return true; + } + 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()); + } + + initialized = initImpl(gl); + return initialized; + } + + public void dispose(GL2ES2 gl) { + if(!initialized){ + if(DEBUG) { + System.err.println("TextRenderer: Not initialized!"); + } + return; + } + disposeImpl(gl); + st.destroy(gl); + flushCash(); + initialized = false; + } + + public final ShaderState getShaderState() { return st; } + + public final PMVMatrix getMatrix() { return pmvMatrix; } + + public void rotate(GL2ES2 gl, float angle, float x, float y, float z) { + pmvMatrix.glRotatef(angle, x, y, z); + if(initialized && 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(initialized && null != gl && st.inUse()) { + st.glUniform(gl, mgl_PMVMatrix); + } + } + + public void resetModelview(GL2ES2 gl) { + pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW); + pmvMatrix.glLoadIdentity(); + if(initialized && null != gl && st.inUse()) { + st.glUniform(gl, mgl_PMVMatrix); + } + } + + public void updateMatrix(GL2ES2 gl) { + if(initialized && null != gl && st.inUse()) { + st.glUniform(gl, mgl_PMVMatrix); + } + } + + public boolean reshapePerspective(GL2ES2 gl, float angle, int width, int height, float near, float far) { + this.vp_width = width; + this.vp_height = height; + float ratio = (float)width/(float)height; + pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION); + pmvMatrix.glLoadIdentity(); + pmvMatrix.gluPerspective(angle, ratio, near, far); + + if(initialized && null != gl) { + st.glUniform(gl, mgl_PMVMatrix); + } + + return true; + } + + public boolean reshapeOrtho(GL2ES2 gl, int width, int height, float near, float far) { + this.vp_width = width; + this.vp_height = height; + pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION); + pmvMatrix.glLoadIdentity(); + pmvMatrix.glOrthof(0, width, 0, height, near, far); + + if(initialized && null != gl) { + st.glUniform(gl, mgl_PMVMatrix); + } + + return true; + } + +}
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