Changeset 70389 in webkit

Timestamp:

Oct 23, 2010 8:08:40 AM (14 years ago)

Author:

Patrick Gansterer

Message:

2010-10-23 Patrick Gansterer <Patrick Gansterer>

Reviewed by David Kilzer.

Add Gradient::hasAlpha
​https://bugs.webkit.org/show_bug.cgi?id=48183

WinCE can do some performance improvements if the gradient is opaque.

• platform/graphics/Gradient.cpp: (WebCore::Gradient::hasAlpha):
• platform/graphics/Gradient.h:

Location:

trunk/WebCore

Files:

• ChangeLog (modified) (1 diff)
• platform/graphics/Gradient.cpp (modified) (1 diff)
• platform/graphics/Gradient.h (modified) (1 diff)

trunk/WebCore/ChangeLog

@@ +1 @@
+2010-10-23  Patrick Gansterer  <paroga@webkit.org>
+
+        Reviewed by David Kilzer.
+
+        Add Gradient::hasAlpha
+        https://bugs.webkit.org/show_bug.cgi?id=48183
+
+        WinCE can do some performance improvements if the gradient is opaque.
+
+        * platform/graphics/Gradient.cpp:
+        (WebCore::Gradient::hasAlpha):
+        * platform/graphics/Gradient.h:
+
 2010-10-23  Gyuyoung Kim  <gyuyoung.kim@samsung.com>
 

trunk/WebCore/platform/graphics/Gradient.cpp

@@ -197 +197 @@
 }
 
+bool Gradient::hasAlpha() const
+{
+    for (size_t i = 0; i < m_stops.size(); i++) {
+        if (m_stops[i].alpha < 1)
+            return true;
+    }
+
+    return false;
+}
+
 void Gradient::setSpreadMethod(GradientSpreadMethod spreadMethod)
 {

trunk/WebCore/platform/graphics/Gradient.h

@@ -88 +88 @@
 
         void getColor(float value, float* r, float* g, float* b, float* a) const;
+        bool hasAlpha() const;
 
         bool isRadial() const { return m_radial; }