Several skia tunings for JB_2.5

* Optiming constructor of Paint object
* Special copy path for small object
* Global Language list instead of constructing a new obj everytime.

Change-Id: I8d4687fffe055166a4758059872af09bfdc973d4

3 files changed, 39 insertions, 2 deletions

diff --git a/include/core/SkDraw.h b/include/core/SkDraw.h
index 8c659c2..ae323f2 100644
--- a/include/core/SkDraw.h
+++ b/include/core/SkDraw.h
@@ -104,6 +104,8 @@ private:
     void    drawBitmapAsMask(const SkBitmap&, const SkPaint&) const;
 
 public:
+    //Be noted to update SkDraw::SkDraw() constructor code when struture is
+    //change!
     const SkBitmap* fBitmap;        // required
     const SkMatrix* fMatrix;        // required
     const SkRegion* fClip;          // DEPRECATED
diff --git a/include/core/SkPaint.h b/include/core/SkPaint.h
index d2233f0..88f26f1 100644
--- a/include/core/SkPaint.h
+++ b/include/core/SkPaint.h
@@ -17,6 +17,7 @@
 #include "SkString.h"
 
 #ifdef SK_BUILD_FOR_ANDROID
+#include <pthread.h>
 #include "SkLanguage.h"
 #endif
 
@@ -42,6 +43,26 @@ typedef const SkGlyph& (*SkDrawCacheProc)(SkGlyphCache*, const char**,
 
 typedef const SkGlyph& (*SkMeasureCacheProc)(SkGlyphCache*, const char**);
 
+class SkLangList {
+    public:
+        SkLangList();
+
+    SkLanguage s;
+    SkLangList *next;
+};
+
+class SkLanguages {
+public:
+    SkLanguages();
+    SkLangList * setLanguage( const SkLanguage& locale );
+    const SkLanguage& getLanguage( SkLangList * t ) const;
+
+private:
+    SkLangList * LocaleArray;
+    pthread_mutex_t update_mutex;
+};
+
+
 /** \class SkPaint
 
     The SkPaint class holds the style and color information about how to draw
@@ -664,7 +685,8 @@ public:
     /** Return the paint's language value used for drawing text.
         @return the paint's language value used for drawing text.
     */
-    const SkLanguage& getLanguage() const { return fLanguage; }
+    const SkLanguage& getLanguage() const;
+
 
     /** Set the paint's language value used for drawing text.
         @param language set the paint's language value for drawing text.
@@ -904,6 +926,8 @@ public:
     bool nothingToDraw() const;
 
 private:
+    //Be noted to update SkPaint::SkPaint(const SkPaint& src) copy
+    //constructor when struture is changed for fast path!
     SkTypeface*     fTypeface;
     SkScalar        fTextSize;
     SkScalar        fTextScaleX;
@@ -929,7 +953,7 @@ private:
     unsigned        fTextEncoding : 2;  // 3 values
     unsigned        fHinting : 2;
 #ifdef SK_BUILD_FOR_ANDROID
-    SkLanguage      fLanguage;
+    SkLangList*     fpLanguage;
     FontVariant     fFontVariant;
 #endif
 
diff --git a/include/core/SkRect.h b/include/core/SkRect.h
index 65e7611..64568c9 100644
--- a/include/core/SkRect.h
+++ b/include/core/SkRect.h
@@ -347,6 +347,16 @@ struct SK_API SkRect {
      */
     bool isFinite() const {
 #ifdef SK_SCALAR_IS_FLOAT
+#if defined(KRAIT_OPTIMIZATION)
+        if (SkScalarIsFinite(fBottom) &&
+                SkScalarIsFinite(fRight) &&
+                SkScalarIsFinite(fLeft) &&
+                SkScalarIsFinite(fTop)) {
+            return true;
+        } else {
+            return false;
+        }
+#else
         // x * 0 will be NaN iff x is infinity or NaN.
         // a + b will be NaN iff either a or b is NaN.
         float value = fLeft * 0 + fTop * 0 + fRight * 0 + fBottom * 0;
@@ -354,6 +364,7 @@ struct SK_API SkRect {
         // value is either NaN or it is finite (zero).
         // value==value will be true iff value is not NaN
         return value == value;
+#endif
 #else
         // use bit-or for speed, since we don't care about short-circuting the
         // tests, and we expect the common case will be that we need to check all.