Merge pull request #2889 from Darkyenus/gldebug

GLDebugger

backends/gdx-backends-gwt/src/com/badlogic/gdx/backends/gwt/emu/com/badlogic/gdx/graphics/profiling/GLErrorListener.java

@@ -0,0 +1,81 @@
+/*******************************************************************************
+ * Copyright 2015 See AUTHORS file.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+package com.badlogic.gdx.graphics.profiling;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.utils.GdxRuntimeException;
+import static com.badlogic.gdx.graphics.profiling.GLProfiler.resolveErrorNumber;
+
+/** @see GLProfiler
+ * @author Jan Polák */
+public interface GLErrorListener {
+
+	/** Put your error logging code here.
+	 * @see GLProfiler#resolveErrorNumber(int) */
+	public void onError (int error);
+
+	// Basic implementations
+
+	/** Listener that will log using Gdx.app.error GL error name and GL function. */
+	public static final GLErrorListener LOGGING_LISTENER = new GLErrorListener() {
+
+		public void onError (int error) {
+			final Exception exc = new Exception();
+			String place = null;
+			try {
+				final StackTraceElement[] stack = exc.getStackTrace();
+				for (int i = 0; i < stack.length; i++) {
+					if (stack[i].getMethodName().contains("check")) {
+						// GWT is mangling names, but this should (at least in dev mode) work.
+						if (i + 1 < stack.length) {
+							final StackTraceElement glMethod = stack[i + 1];
+							place = glMethod.getMethodName();
+						}
+						break;
+					}
+				}
+			} catch (Exception ignored) {
+			}
+
+			if (place != null) {
+				Gdx.app.error("GLProfiler", "Error " + resolveErrorNumber(error) + " from " + place);
+			} else {
+				StringBuffer buffer = new StringBuffer("Error ");
+				buffer.append(resolveErrorNumber(error));
+				buffer.append(" at:\n");
+				try {
+					final StackTraceElement[] stack = exc.getStackTrace();
+					for (int i = 0; i < stack.length; i++) {
+						buffer.append(stack[i].toString()).append('\n');
+					}
+				} catch (Exception ignored) {
+					buffer.append(" (Failed to print stack trace: ").append(ignored).append(")");
+				}
+				Gdx.app.error("GLProfiler", buffer.toString());
+				// GWT backend seems to have trouble printing stack traces reliably
+			}
+		}
+	};
+
+	/** Listener that will throw a GdxRuntimeException with error name. */
+	public static final GLErrorListener THROWING_LISTENER = new GLErrorListener() {
+
+		public void onError (int error) {
+			throw new GdxRuntimeException("GLProfiler: Got GL error " + resolveErrorNumber(error));
+		}
+	};
+}

gdx/src/com/badlogic/gdx.gwt.xml

@@ -242,7 +242,7 @@
 		<include name="graphics/profiling/GL20Profiler.java"/>
 		<include name="graphics/profiling/GL30Profiler.java"/>
 		<include name="graphics/profiling/GLProfiler.java"/>
-
+		<include name="graphics/profiling/GLErrorListener.java"/> <!-- Emulated -->
 
 	<!-- input -->
 		<include name="input/GestureDetector.java"/>