1 files changed, 134 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/format/GLAPISpec.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/format/GLAPISpec.java
new file mode 100644
index 000000000..57b587cb3
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/format/GLAPISpec.java
@@ -0,0 +1,134 @@
+/*
+ * 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 java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Model a single GL API function call's specification.
+ */
+public class GLAPISpec {
+    private static final String GL_SPECS_FILE = "/entries.in"; //$NON-NLS-1$
+    private static final String GLES2_ENTRIES_HEADER_V1 =
+            "# com.android.ide.eclipse.gltrace.glentries, v1"; //$NON-NLS-1$
+    private static Map<String, GLAPISpec> sApiSpecs;
+
+    private final String mGLFunction;
+    private final GLDataTypeSpec mReturnType;
+    private final List<GLDataTypeSpec> mArgs;
+
+    private GLAPISpec(String glFunction, GLDataTypeSpec returnType, List<GLDataTypeSpec> args) {
+        mGLFunction = glFunction;
+        mReturnType = returnType;
+        mArgs = args;
+    }
+
+    public String getFunction() {
+        return mGLFunction;
+    }
+
+    public GLDataTypeSpec getReturnValue() {
+        return mReturnType;
+    }
+
+    public List<GLDataTypeSpec> getArgs() {
+        return mArgs;
+    }
+
+    public static Map<String, GLAPISpec> getSpecs() {
+        if (sApiSpecs == null) {
+            sApiSpecs = parseApiSpecs(GLAPISpec.class.getResourceAsStream(GL_SPECS_FILE));
+        }
+
+        return sApiSpecs;
+    }
+
+    private static Map<String, GLAPISpec> parseApiSpecs(InputStream specFile) {
+        BufferedReader reader = new BufferedReader(new InputStreamReader(specFile));
+        Map<String, GLAPISpec> specs = new HashMap<String, GLAPISpec>(400);
+
+        try{
+            String header = reader.readLine().trim();
+            assert header.equals(GLES2_ENTRIES_HEADER_V1);
+
+            String line;
+            while ((line = reader.readLine()) != null) {
+                // strip away the comments
+                int commentPos = line.indexOf('#');
+                if (commentPos != -1) {
+                    line = line.substring(0, commentPos);
+                }
+                line = line.trim();
+
+                // parse non empty lines
+                if (line.length() > 0) {
+                    GLAPISpec spec = parseLine(line);
+                    specs.put(spec.getFunction(), spec);
+                }
+            }
+
+            specFile.close();
+        } catch (IOException e) {
+            // this is unlikely to happen as the file is present within this .jar file.
+            // Even if it does happen, we just return whatever we've read till now. The net
+            // impact will be that the function calls will not be parsed fully and will just
+            // display the function name.
+        }
+
+        return specs;
+    }
+
+    /**
+     * Parse a GL API Specification entry from "/entries.in". Each line is of the format:
+     * {@code returnType, funcName, arg*}. This method is package private for testing.
+     */
+    static GLAPISpec parseLine(String line) {
+        List<String> words = Arrays.asList(line.split(","));
+
+        String retType = words.get(0).trim();
+        String func = words.get(1).trim();
+        List<String> argDefinitions = words.subList(2, words.size());
+
+        List<GLDataTypeSpec> glArgs = new ArrayList<GLDataTypeSpec>(argDefinitions.size()/2);
+        for (String argDefn: argDefinitions) {
+            // an argDefn is something like: "const GLvoid* data"
+            argDefn = argDefn.trim();
+            int lastSeparator = argDefn.lastIndexOf(' ');
+            if (lastSeparator == -1) {
+                // no space => a void type with no argument name
+                glArgs.add(new GLDataTypeSpec(argDefn, null));
+            } else {
+                // everything upto the last space is the type
+                String type = argDefn.substring(0, lastSeparator);
+
+                // and the last word is the variable name
+                String name = argDefn.substring(lastSeparator + 1);
+                glArgs.add(new GLDataTypeSpec(type, name));
+            }
+        }
+
+        return new GLAPISpec(func, new GLDataTypeSpec(retType, null), glArgs);
+    }
+}