Refactor FontRenderer.cpp

FontRenderer.h defined several classes and structures that now live
in the font/ folder. This will make the code easier to read and
maintain.

Change-Id: I3dc044e9bde1d6515f8704f5c72462877d279fe2
diff --git a/libs/hwui/font/CachedGlyphInfo.h b/libs/hwui/font/CachedGlyphInfo.h
new file mode 100644
index 0000000..6680a00
--- /dev/null
+++ b/libs/hwui/font/CachedGlyphInfo.h
@@ -0,0 +1,58 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HWUI_CACHED_GLYPH_INFO_H
+#define ANDROID_HWUI_CACHED_GLYPH_INFO_H
+
+#include <SkFixed.h>
+
+#include "CacheTexture.h"
+
+namespace android {
+namespace uirenderer {
+
+struct CachedGlyphInfo {
+    // Has the cache been invalidated?
+    bool mIsValid;
+    // Location of the cached glyph in the bitmap
+    // in case we need to resize the texture or
+    // render to bitmap
+    uint32_t mStartX;
+    uint32_t mStartY;
+    uint32_t mBitmapWidth;
+    uint32_t mBitmapHeight;
+    // Also cache texture coords for the quad
+    float mBitmapMinU;
+    float mBitmapMinV;
+    float mBitmapMaxU;
+    float mBitmapMaxV;
+    // Minimize how much we call freetype
+    uint32_t mGlyphIndex;
+    uint32_t mAdvanceX;
+    uint32_t mAdvanceY;
+    // Values below contain a glyph's origin in the bitmap
+    int32_t mBitmapLeft;
+    int32_t mBitmapTop;
+    // Auto-kerning
+    SkFixed mLsbDelta;
+    SkFixed mRsbDelta;
+    CacheTexture* mCacheTexture;
+};
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // ANDROID_HWUI_CACHED_GLYPH_INFO_H