| /* |
| * Copyright (C) 2012 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.state.transforms; |
| |
| import com.android.ide.eclipse.gltrace.GLEnum; |
| import com.android.ide.eclipse.gltrace.state.GLIntegerProperty; |
| import com.android.ide.eclipse.gltrace.state.GLStateType; |
| import com.android.ide.eclipse.gltrace.state.IGLProperty; |
| |
| /** |
| * An {@link IGLPropertyAccessor} that retrieves the requested property in the |
| * currently bound {@link GLEnum#GL_ARRAY_BUFFER} or {@link GLEnum#GL_ELEMENT_ARRAY_BUFFER}. |
| */ |
| public class CurrentVboPropertyAccessor implements IGLPropertyAccessor { |
| private final int mContextId; |
| private final IGLPropertyAccessor mVboBindingAccessor; |
| private final GLStateType mVboProperty; |
| |
| public CurrentVboPropertyAccessor(int contextId, GLEnum target, GLStateType vboProperty) { |
| mContextId = contextId; |
| mVboProperty = vboProperty; |
| |
| GLStateType vboType; |
| if (target == GLEnum.GL_ARRAY_BUFFER) { |
| vboType = GLStateType.ARRAY_BUFFER_BINDING; |
| } else { |
| vboType = GLStateType.ELEMENT_ARRAY_BUFFER_BINDING; |
| } |
| |
| mVboBindingAccessor = GLPropertyAccessor.makeAccessor(contextId, |
| GLStateType.VERTEX_ARRAY_DATA, |
| GLStateType.BUFFER_BINDINGS, |
| vboType); |
| } |
| |
| @Override |
| public IGLProperty getProperty(IGLProperty state) { |
| // obtain the current bound buffer |
| IGLProperty currentBinding = mVboBindingAccessor.getProperty(state); |
| if (!(currentBinding instanceof GLIntegerProperty)) { |
| return null; |
| } |
| |
| Integer buffer = (Integer) currentBinding.getValue(); |
| |
| return GLPropertyAccessor.makeAccessor(mContextId, |
| GLStateType.VERTEX_ARRAY_DATA, |
| GLStateType.VBO, |
| buffer, |
| mVboProperty).getProperty(state); |
| } |
| |
| @Override |
| public String getPath() { |
| return String.format("VERTEX_ARRAY_DATA/VBO/${currentBuffer}/%s", mVboProperty); |
| } |
| } |