commit 5b3b35296e8b2c8d3f07d32bb645d5414db41a1d
author Romain Guy <romainguy@google.com> Wed Oct 27 18:57:51 2010 -0700
committer Romain Guy <romainguy@google.com> Tue Nov 02 16:17:23 2010 -0700
tree bad2ebdbfeb8a3a0be1591d5a357a8280df7d1d2
parent 2444ddb3d9b59ec45ba50858fcbff639e59b93b1

Optimize FBO drawing with regions.
This optimization is currently disabled until Launcher is
modified to take advantage of it. The optimization can be
enabled by turning on RENDER_LAYERS_AS_REGIONS in the
OpenGLRenderer.h file.

Change-Id: I2fdf59d0f4dc690a3d7f712173ab8db3848b27b1

libs/hwui/Rect.h

diff --git a/libs/hwui/Rect.h b/libs/hwui/Rect.h
index 8f3655c..71951b7 100644
--- a/libs/hwui/Rect.h
+++ b/libs/hwui/Rect.h
@@ -14,8 +14,10 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_UI_RECT_H
-#define ANDROID_UI_RECT_H
+#ifndef ANDROID_HWUI_RECT_H
+#define ANDROID_HWUI_RECT_H
+
+#include <cmath>
 
 #include <utils/Log.h>
 
@@ -32,25 +34,35 @@
     float right;
     float bottom;
 
-    Rect():
+    // Used by Region
+    typedef float value_type;
+
+    inline Rect():
             left(0),
             top(0),
             right(0),
             bottom(0) {
     }
 
-    Rect(float left, float top, float right, float bottom):
+    inline Rect(float left, float top, float right, float bottom):
             left(left),
             top(top),
             right(right),
             bottom(bottom) {
     }
 
-    Rect(const Rect& r) {
+    inline Rect(float width, float height):
+            left(0.0f),
+            top(0.0f),
+            right(width),
+            bottom(height) {
+    }
+
+    inline Rect(const Rect& r) {
         set(r);
     }
 
-    Rect(Rect& r) {
+    inline Rect(Rect& r) {
         set(r);
     }
 
@@ -72,22 +84,26 @@
         return memcmp(&a, &b, sizeof(a));
     }
 
-    bool isEmpty() const {
+    inline void clear() {
+        left = top = right = bottom = 0.0f;
+    }
+
+    inline bool isEmpty() const {
         return left >= right || top >= bottom;
     }
 
-    void setEmpty() {
-        memset(this, 0, sizeof(*this));
+    inline void setEmpty() {
+        left = top = right = bottom = 0.0f;
     }
 
-    void set(float left, float top, float right, float bottom) {
+    inline void set(float left, float top, float right, float bottom) {
         this->left = left;
         this->right = right;
         this->top = top;
         this->bottom = bottom;
     }
 
-    void set(const Rect& r) {
+    inline void set(const Rect& r) {
         set(r.left, r.top, r.right, r.bottom);
     }
 
@@ -148,6 +164,13 @@
         return false;
     }
 
+    void translate(float dx, float dy) {
+        left += dx;
+        right += dx;
+        top += dy;
+        bottom += dy;
+    }
+
     void snapToPixelBoundaries() {
         left = floorf(left + 0.5f);
         top = floorf(top + 0.5f);
@@ -164,4 +187,4 @@
 }; // namespace uirenderer
 }; // namespace android
 
-#endif // ANDROID_UI_RECT_H
+#endif // ANDROID_HWUI_RECT_H