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GLDebug: Use a method handle instead of a string comparison to increase the performance

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This commit is contained in:
MeFisto94 2020-04-01 14:23:01 +02:00 committed by Stephen Gold
parent 9be8f5dd3a
commit b00c245e8e
1 changed files with 21 additions and 8 deletions
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19
jme3-core/src/main/java/com/jme3/renderer/opengl/GLDebug.java
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@ -36,6 +36,8 @@ import com.jme3.renderer.RendererException;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* This class uses Reflection to intercept method calls to the Proxy Object ({@link #createProxy(GL, Object, Class[])}
@ -51,10 +53,15 @@ import java.lang.reflect.Proxy;
public class GLDebug implements InvocationHandler {
protected Object obj;
protected GL gl;
protected Method methodGlGetError;
private static final Logger LOG = Logger.getLogger(GLDebug.class.getName());
private GLDebug(GL gl, Object obj) {
private GLDebug(GL gl, Object obj) throws NoSuchMethodException {
this.gl = gl;
this.obj = obj;
methodGlGetError = GL.class.getMethod("glGetError");
/* The NoSuchMethodException shouldn't be thrown, but since we're in a constructor and cannot fail safe
* otherwise, we throw it. */
}
protected String decodeError(int err) {
@ -102,7 +109,7 @@ public class GLDebug implements InvocationHandler {
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Object result = method.invoke(obj, args);
if (method.getName().equals("glGetError")) {
if (method.equals(methodGlGetError)) {
return result;
}
@ -117,13 +124,19 @@ public class GLDebug implements InvocationHandler {
* @param gl The GL Context, required to call {@link GL#glGetError()}
* @param obj The object which methods will be proxied
* @param implementedInterfaces The interfaces/class this object implements
* @return The Proxy object
* @return The Proxy object (or null if an error occured)
*/
public static Object createProxy(GL gl, Object obj, Class<?>... implementedInterfaces) {
try {
return Proxy.newProxyInstance(
GLDebug.class.getClassLoader(),
implementedInterfaces,
new GLDebug(gl, obj)
);
} catch (NoSuchMethodException nsme) {
LOG.log(Level.SEVERE, "Could not initialize the proxy because the glGetError method wasn't found!",
nsme);
return null;
}
}
}