Always use both a color and coverage attribute in GrAARectRenderer.

include/gpu/GrColor.h

 
 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
@@ skipping 70 matching lines @@
 
 /** Converts a GrColor to an rgba array of GrGLfloat */
 static inline void GrColorToRGBAFloat(GrColor color, float rgba[4]) {
     static const float ONE_OVER_255 = 1.f / 255.f;
     rgba[0] = GrColorUnpackR(color) * ONE_OVER_255;
     rgba[1] = GrColorUnpackG(color) * ONE_OVER_255;
     rgba[2] = GrColorUnpackB(color) * ONE_OVER_255;
     rgba[3] = GrColorUnpackA(color) * ONE_OVER_255;
 }
 
+/** Determines whether the color is opaque or not. */
+static inline bool GrColorIsOpaque(GrColor color) {
+    return (color & (0xFFU << GrColor_SHIFT_A)) == (0xFFU << GrColor_SHIFT_A);
+}
+
 /**
  * Flags used for bitfields of color components. They are defined so that the bit order reflects the
  * GrColor shift order.
  */
 enum GrColorComponentFlags {
     kR_GrColorComponentFlag = 1 << (GrColor_SHIFT_R / 8),
     kG_GrColorComponentFlag = 1 << (GrColor_SHIFT_G / 8),
     kB_GrColorComponentFlag = 1 << (GrColor_SHIFT_B / 8),
     kA_GrColorComponentFlag = 1 << (GrColor_SHIFT_A / 8),
 
@@ skipping 48 matching lines @@
     GR_STATIC_ASSERT(6  == kBGRA_8888_GrPixelConfig);
     GR_STATIC_ASSERT(7  == kETC1_GrPixelConfig);
     GR_STATIC_ASSERT(8  == kLATC_GrPixelConfig);
     GR_STATIC_ASSERT(9  == kR11_EAC_GrPixelConfig);
     GR_STATIC_ASSERT(10 == kASTC_12x12_GrPixelConfig);
     GR_STATIC_ASSERT(11 == kRGBA_float_GrPixelConfig);
     GR_STATIC_ASSERT(SK_ARRAY_COUNT(kFlags) == kGrPixelConfigCnt);
 }
 
 #endif