Add a macro for querying the byte order of SkPMColor.

include/gpu/GrTypes.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 273 matching lines @@
      */
     kBGRA_8888_GrPixelConfig,
 
     kGrPixelConfigCount
 };
 
 // Aliases for pixel configs that match skia's byte order.
 #ifndef SK_CPU_LENDIAN
     #error "Skia gpu currently assumes little endian"
 #endif
-#if 24 == SK_A32_SHIFT && 16 == SK_R32_SHIFT && \
-     8 == SK_G32_SHIFT &&  0 == SK_B32_SHIFT
+#if SK_PM_BYTE_ORDER_IS(B,G,R,A)
     static const GrPixelConfig kSkia8888_GrPixelConfig = kBGRA_8888_GrPixelConfig;
-#elif 24 == SK_A32_SHIFT && 16 == SK_B32_SHIFT && \
-       8 == SK_G32_SHIFT &&  0 == SK_R32_SHIFT
+#elif SK_PM_BYTE_ORDER_IS(R,G,B,A)
     static const GrPixelConfig kSkia8888_GrPixelConfig = kRGBA_8888_GrPixelConfig;
 #else
     #error "SK_*32_SHIFT values must correspond to GL_BGRA or GL_RGBA format."
 #endif
 
 // Returns true if the pixel config is 32 bits per pixel
 static inline bool GrPixelConfigIs8888(GrPixelConfig config) {
     switch (config) {
         case kRGBA_8888_GrPixelConfig:
         case kBGRA_8888_GrPixelConfig:
@@ skipping 316 matching lines @@
     /**
      * Handle to the 3D API object.
      * OpenGL: FBO ID
      */
     GrBackendObject                 fRenderTargetHandle;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 #endif