From d15ebf25c595b855f6978d0600218e3ea5f31e92 Mon Sep 17 00:00:00 2001
From: Chet Haase <chet@google.com>
Date: Wed, 5 Sep 2012 11:40:29 -0700
Subject: Enable changing properties of layer paint

Previously, to draw a layered view with a changed Paint object for the
drawLayer operation, you'd have to invalidate the parent view, to get the
native DisplayList to pick up the new Paint properties. This change adds
API and functionality so that the developer can call setLayerPaint(), which
does the proper invalidation (lightweight, doesn't cause redrawing the view).

Issue #6923810 Make it easy to efficiently animate a layer's Paint

Change-Id: I7fea79788d50f6d9c86dd5e5b2a4490cb95142bb
---
 libs/hwui/Layer.cpp | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 libs/hwui/Layer.cpp

(limited to 'libs/hwui/Layer.cpp')

diff --git a/libs/hwui/Layer.cpp b/libs/hwui/Layer.cpp
new file mode 100644
index 000000000000..31e169beea64
--- /dev/null
+++ b/libs/hwui/Layer.cpp
@@ -0,0 +1,51 @@
+/*
+ * 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.
+ */
+
+#define LOG_TAG "OpenGLRenderer"
+
+#include <utils/Log.h>
+
+#include "Layer.h"
+#include "OpenGLRenderer.h"
+#include "Caches.h"
+
+namespace android {
+namespace uirenderer {
+
+Layer::~Layer() {
+    if (mesh) delete mesh;
+    if (meshIndices) delete meshIndices;
+    if (colorFilter) Caches::getInstance().resourceCache.decrementRefcount(colorFilter);
+}
+
+void Layer::setPaint(SkPaint* paint) {
+    OpenGLRenderer::getAlphaAndModeDirect(paint, &alpha, &mode);
+}
+
+void Layer::setColorFilter(SkiaColorFilter* filter) {
+    if (colorFilter) {
+        Caches::getInstance().resourceCache.decrementRefcount(colorFilter);
+    }
+    colorFilter = filter;
+    if (colorFilter) {
+        Caches::getInstance().resourceCache.incrementRefcount(colorFilter);
+    }
+}
+
+
+
+}; // namespace uirenderer
+}; // namespace android
-- 
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