1 files changed, 158 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/detail/TextureImageDetailsProvider.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/detail/TextureImageDetailsProvider.java
new file mode 100644
index 000000000..4dcbb10c4
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/views/detail/TextureImageDetailsProvider.java
@@ -0,0 +1,158 @@
+/*
+ * 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.views.detail;
+
+import com.android.ide.eclipse.gltrace.state.GLCompositeProperty;
+import com.android.ide.eclipse.gltrace.state.GLSparseArrayProperty;
+import com.android.ide.eclipse.gltrace.state.GLStateType;
+import com.android.ide.eclipse.gltrace.state.GLStringProperty;
+import com.android.ide.eclipse.gltrace.state.IGLProperty;
+import com.android.ide.eclipse.gltrace.views.FitToCanvasAction;
+import com.android.ide.eclipse.gltrace.views.SaveImageAction;
+import com.android.ide.eclipse.gltrace.widgets.ImageCanvas;
+
+import org.eclipse.jface.action.ActionContributionItem;
+import org.eclipse.jface.action.IContributionItem;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class TextureImageDetailsProvider implements IStateDetailProvider {
+    private ImageCanvas mImageCanvas;
+    private FitToCanvasAction mFitToCanvasAction;
+    private SaveImageAction mSaveImageAction;
+    private List<IContributionItem> mToolBarItems;
+
+    @Override
+    public boolean isApplicable(IGLProperty state) {
+        return getTextureImageProperty(state) != null;
+    }
+
+    @Override
+    public void createControl(Composite parent) {
+        mImageCanvas = new ImageCanvas(parent);
+        mImageCanvas.setFitToCanvas(false);
+
+        mFitToCanvasAction = new FitToCanvasAction(false, mImageCanvas);
+        mSaveImageAction = new SaveImageAction(mImageCanvas);
+
+        mToolBarItems = Arrays.asList(
+                (IContributionItem) new ActionContributionItem(mFitToCanvasAction),
+                (IContributionItem) new ActionContributionItem(mSaveImageAction));
+    }
+
+    @Override
+    public void disposeControl() {
+        mImageCanvas.dispose();
+        mImageCanvas = null;
+    }
+
+    @Override
+    public Control getControl() {
+        return mImageCanvas;
+    }
+
+    @Override
+    public void updateControl(IGLProperty state) {
+        IGLProperty imageProperty = getTextureImageProperty(state);
+        if (imageProperty == null) {
+            return;
+        }
+
+        String texturePath = ((GLStringProperty) imageProperty).getStringValue();
+        if (texturePath != null) {
+            mImageCanvas.setImage(new Image(Display.getDefault(), texturePath));
+            mImageCanvas.setFitToCanvas(false);
+            return;
+        }
+    }
+
+    /**
+     * Get the {@link GLStateType#TEXTURE_IMAGE} property given a node in
+     * the state hierarchy.
+     * @param state any node in the GL state hierarchy
+     * @return The {@link GLStateType#TEXTURE_IMAGE} property if a unique instance
+     *         of it can be accessed from the given node. A unique instance can be
+     *         accessed if the given node is either the requested node itself, or
+     *         its parent or sibling. In cases where a unique instance cannot be
+     *         accessed, but one of the texture mipmap levels can be accessed, then
+     *         return the first texture mipmap level. This happens if the selected
+     *         state is a child of {@link GLStateType#PER_TEXTURE_STATE}. Returns
+     *         null otherwise.
+     */
+    private IGLProperty getTextureImageProperty(IGLProperty state) {
+        if (state.getType() == GLStateType.TEXTURE_IMAGE) {
+            // given node is the requested node
+            return state;
+        }
+
+        IGLProperty img = getImageFromPerTextureLevelState(state);
+        if (img != null) {
+            return img;
+        }
+
+        return getFirstMipmapImage(state);
+    }
+
+    /**
+     * Returns the {@link GLStateType#TEXTURE_IMAGE} if the provided state is either
+     * {@link GLStateType#PER_TEXTURE_LEVEL_STATE} or one of its children. Returns null otherwise.
+     */
+    private IGLProperty getImageFromPerTextureLevelState(IGLProperty state) {
+        if (state != null && state.getType() != GLStateType.PER_TEXTURE_LEVEL_STATE) {
+            state = state.getParent();
+        }
+
+        if (state == null || state.getType() != GLStateType.PER_TEXTURE_LEVEL_STATE) {
+            return null;
+        }
+
+        return ((GLCompositeProperty) state).getProperty(GLStateType.TEXTURE_IMAGE);
+    }
+
+    /**
+     * Returns the first mipmap level's image entry if the provided state is either
+     * {@link GLStateType#PER_TEXTURE_STATE} or one of its immediate children, null otherwise.
+     */
+    private IGLProperty getFirstMipmapImage(IGLProperty state) {
+        if (state != null && state.getType() != GLStateType.PER_TEXTURE_STATE) {
+            state = state.getParent();
+        }
+
+        if (state == null || state.getType() != GLStateType.PER_TEXTURE_STATE) {
+            return null;
+        }
+
+        IGLProperty mipmaps =
+                ((GLCompositeProperty) state).getProperty(GLStateType.TEXTURE_MIPMAPS);
+        if (!(mipmaps instanceof GLSparseArrayProperty)) {
+            return null;
+        }
+
+        IGLProperty perTextureLevelState = ((GLSparseArrayProperty) mipmaps).getProperty(0);
+        return getImageFromPerTextureLevelState(perTextureLevelState);
+    }
+
+    @Override
+    public List<IContributionItem> getToolBarItems() {
+        return mToolBarItems;
+    }
+}