1 files changed, 166 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/format/GLMessageFormatter.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/format/GLMessageFormatter.java
new file mode 100644
index 000000000..6c34005ac
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/format/GLMessageFormatter.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * 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.android.ide.eclipse.gltrace.format;
+
+import com.android.ide.eclipse.gltrace.GLEnum;
+import com.android.ide.eclipse.gltrace.GLProtoBuf.GLMessage;
+import com.android.ide.eclipse.gltrace.GLProtoBuf.GLMessage.DataType;
+import com.android.ide.eclipse.gltrace.GLProtoBuf.GLMessage.DataType.Type;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * GLMessageFormatter is used to format and create a string representation for a {@link GLMessage}.
+ * It is provided with a specification for all GL Functions. Using this information, each
+ * GLMessage is parsed and formatted appropriately for display.
+ */
+public class GLMessageFormatter {
+    private static final String GL_NO_ERROR = "GL_NO_ERROR";
+    private Map<String, GLAPISpec> mAPISpecs;
+    private enum DataTypeContext { CONTEXT_ARGUMENT, CONTEXT_RETURNVALUE };
+
+    public GLMessageFormatter(Map<String, GLAPISpec> specs) {
+        mAPISpecs = specs;
+    }
+
+    public String formatGLMessage(GLMessage glMessage) {
+        GLAPISpec apiSpec = mAPISpecs.get(glMessage.getFunction().toString());
+        if (apiSpec == null) {
+            return glMessage.getFunction().toString();
+        }
+
+        return formatCall(apiSpec, glMessage) + formatReturnValue(apiSpec, glMessage);
+    }
+
+    private String formatReturnValue(GLAPISpec apiSpec, GLMessage glMessage) {
+        if (apiSpec.getReturnValue().getDataType() == Type.VOID) {
+            return "";
+        }
+
+        GLDataTypeSpec returnSpec = apiSpec.getReturnValue();
+        return String.format(" = (%s) %s", returnSpec.getCType(),   //$NON-NLS-1$
+                formatDataValue(glMessage.getReturnValue(),
+                        returnSpec,
+                        DataTypeContext.CONTEXT_RETURNVALUE));
+    }
+
+    private String formatCall(GLAPISpec apiSpec, GLMessage glMessage) {
+        return String.format("%s(%s)", apiSpec.getFunction(),       //$NON-NLS-1$
+                formatArgs(glMessage, apiSpec.getArgs()));
+    }
+
+    private String formatArgs(GLMessage glMessage, List<GLDataTypeSpec> argSpecs) {
+        int sizeEstimate = 10 + argSpecs.size() * 5;
+        StringBuilder sb = new StringBuilder(sizeEstimate);
+
+        for (int i = 0; i < argSpecs.size(); i++) {
+            GLDataTypeSpec argSpec = argSpecs.get(i);
+
+            if (argSpec.getDataType() == Type.VOID && !argSpec.isPointer()) {
+                sb.append("void");                                  //$NON-NLS-1$
+            } else {
+                sb.append(argSpec.getArgName());
+                sb.append(" = ");                                   //$NON-NLS-1$
+                sb.append(formatDataValue(glMessage.getArgs(i),
+                                argSpec,
+                                DataTypeContext.CONTEXT_ARGUMENT));
+            }
+
+            if (i < argSpecs.size() - 1) {
+                sb.append(", ");                                    //$NON-NLS-1$
+            }
+        }
+
+        return sb.toString();
+    }
+
+    private String formatDataValue(DataType var, GLDataTypeSpec typeSpec, DataTypeContext context) {
+        if (typeSpec.isPointer()) {
+            return formatPointer(var, typeSpec.getDataType());
+        }
+
+        switch (typeSpec.getDataType()) {
+            case VOID:
+                return "";
+            case BOOL:
+                return Boolean.toString(var.getBoolValue(0));
+            case FLOAT:
+                return String.format("%f", var.getFloatValue(0));   //$NON-NLS-1$
+            case INT:
+                return Integer.toString(var.getIntValue(0));
+            case ENUM:
+                if (var.getIntValue(0) == 0 && context == DataTypeContext.CONTEXT_RETURNVALUE) {
+                    return GL_NO_ERROR;
+                } else {
+                    return GLEnum.valueOf(var.getIntValue(0)).toString();
+                }
+            default:
+                return "(unknown type)";                            //$NON-NLS-1$
+        }
+    }
+
+    private String formatPointer(DataType var, Type typeSpec) {
+        if (var.getType() != typeSpec && !isEnumTypeWithIntData(var, typeSpec)) {
+            // the type of the data in the message does not match expected specification.
+            // in such a case, just print the data as a pointer and don't try to interpret it.
+            if (var.getIntValueCount() > 0) {
+                return String.format("0x%x", var.getIntValue(0));   //$NON-NLS-1$
+            } else {
+                return "0x??";                                      //$NON-NLS-1$
+            }
+        }
+
+        // Display as array if possible
+        switch (typeSpec) {
+            case BOOL:
+                return var.getBoolValueList().toString();
+            case FLOAT:
+                return var.getFloatValueList().toString();
+            case INT:
+                return var.getIntValueList().toString();
+            case CHAR:
+                return var.getCharValueList().get(0).toStringUtf8();
+            case ENUM:
+                List<Integer> vals = var.getIntValueList();
+                StringBuilder sb = new StringBuilder(vals.size() * 5);
+                sb.append('[');
+                for (Integer v: vals) {
+                    sb.append(GLEnum.valueOf(v.intValue()));
+                }
+                sb.append(']');
+                return sb.toString();
+            case VOID:
+                if (var.getRawBytesList().size() > 0) {
+                    return String.format("[ %d bytes ]", var.getRawBytesList().get(0).size()); //$NON-NLS-1$
+                }
+                return "[]"; //$NON-NLS-1$
+        }
+
+        // We have a pointer, but we don't have the data pointed to.
+        // Just format and return the pointer (points to device memory)
+        if (var.getIntValue(0) == 0) {
+            return "NULL";                                          //$NON-NLS-1$
+        } else {
+            return String.format("0x%x", var.getIntValue(0));       //$NON-NLS-1$
+        }
+    }
+
+    private boolean isEnumTypeWithIntData(DataType var, Type typeSpec) {
+        return var.getType() == Type.INT && typeSpec == Type.ENUM;
+    }
+}