1 files changed, 72 insertions, 0 deletions
diff --git a/libs/hwui/PatchCache.cpp b/libs/hwui/PatchCache.cpp
new file mode 100644
index 0000000..694e3fd
--- /dev/null
+++ b/libs/hwui/PatchCache.cpp
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2010 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 <utils/ResourceTypes.h>
+
+#include "PatchCache.h"
+
+namespace android {
+namespace uirenderer {
+
+///////////////////////////////////////////////////////////////////////////////
+// Constructors/destructor
+///////////////////////////////////////////////////////////////////////////////
+
+PatchCache::PatchCache(uint32_t maxEntries): mCache(maxEntries) {
+}
+
+PatchCache::~PatchCache() {
+    clear();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Callbacks
+///////////////////////////////////////////////////////////////////////////////
+
+void PatchCache::operator()(PatchDescription& description, Patch*& mesh) {
+    if (mesh) delete mesh;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Caching
+///////////////////////////////////////////////////////////////////////////////
+
+void PatchCache::clear() {
+    mCache.setOnEntryRemovedListener(this);
+    mCache.clear();
+    mCache.setOnEntryRemovedListener(NULL);
+}
+
+Patch* PatchCache::get(const Res_png_9patch* patch) {
+    const uint32_t width = patch->numXDivs;
+    const uint32_t height = patch->numYDivs;
+    const PatchDescription description(width, height);
+
+    Patch* mesh = mCache.get(description);
+    if (!mesh) {
+        PATCH_LOGD("Creating new patch mesh, w=%d h=%d", width, height);
+        mesh = new Patch(width, height);
+        mCache.put(description, mesh);
+    }
+
+    return mesh;
+}
+
+}; // namespace uirenderer
+}; // namespace android