Add hooks for drawBitmap().
Change-Id: I58e962c3a8b2bc75c2605fe369ad3002579d86e0
Add texture cache.
Change-Id: I1c0e5581d228869e114438258a1014e33e024ad7
diff --git a/libs/hwui/TextureCache.cpp b/libs/hwui/TextureCache.cpp
new file mode 100644
index 0000000..b4a57ee
--- /dev/null
+++ b/libs/hwui/TextureCache.cpp
@@ -0,0 +1,86 @@
+/*
+ * 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.
+ */
+
+#include <GLES2/gl2.h>
+
+#include "TextureCache.h"
+
+namespace android {
+namespace uirenderer {
+
+TextureCache::TextureCache(unsigned int maxEntries): mCache(maxEntries) {
+ mCache.setOnEntryRemovedListener(this);
+}
+
+TextureCache::~TextureCache() {
+ mCache.clear();
+}
+
+void TextureCache::operator()(SkBitmap* key, Texture* value) {
+ LOGD("Entry removed");
+ if (value) {
+ glDeleteTextures(1, &value->id);
+ delete value;
+ }
+}
+
+Texture* TextureCache::get(SkBitmap* bitmap) {
+ Texture* texture = mCache.get(bitmap);
+ if (!texture) {
+ texture = generateTexture(bitmap);
+ mCache.put(bitmap, texture);
+ }
+ return texture;
+}
+
+Texture* TextureCache::remove(SkBitmap* bitmap) {
+ return mCache.remove(bitmap);
+}
+
+void TextureCache::clear() {
+ mCache.clear();
+}
+
+Texture* TextureCache::generateTexture(SkBitmap* bitmap) {
+ Texture* texture = new Texture;
+
+ texture->width = bitmap->width();
+ texture->height = bitmap->height();
+
+ glGenTextures(1, &texture->id);
+ glBindTexture(GL_TEXTURE_2D, texture->id);
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+ switch (bitmap->getConfig()) {
+ case SkBitmap::kRGB_565_Config:
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB565, texture->width, texture->height,
+ 0, GL_RGB565, GL_UNSIGNED_SHORT_5_6_5, bitmap->getPixels());
+ break;
+ case SkBitmap::kARGB_8888_Config:
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texture->width, texture->height,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, bitmap->getPixels());
+ break;
+ }
+
+ return texture;
+}
+
+}; // namespace uirenderer
+}; // namespace android