Re-enable default sized formats, handling BGRA exception.

tests/FloatingPointTextureTest.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /*
  * This is a straightforward test of floating point textures, which are
  * supported on some platforms.  As of right now, this test only supports
@@ skipping 72 matching lines @@
 
 DEF_GPUTEST(HalfFloatTextureTest, reporter, factory) {
     SkHalf controlPixelData[HALF_CONTROL_ARRAY_SIZE];
     SkHalf readBuffer[HALF_CONTROL_ARRAY_SIZE];
     for (int i = 0; i < HALF_CONTROL_ARRAY_SIZE; i += 4) {
         controlPixelData[i] = SK_HalfMin;
         controlPixelData[i + 1] = SK_HalfMax;
         controlPixelData[i + 2] = SK_HalfEpsilon;
         controlPixelData[i + 3] = 0x6800;   // 2^11
     }
-    
+
     for (int origin = 0; origin < 2; ++origin) {
         int glCtxTypeCnt = 1;
         glCtxTypeCnt = GrContextFactory::kGLContextTypeCnt;
         for (int glCtxType = 0; glCtxType < glCtxTypeCnt; ++glCtxType) {
             GrSurfaceDesc desc;
             desc.fFlags = kRenderTarget_GrSurfaceFlag;
             desc.fWidth = DEV_W;
             desc.fHeight = DEV_H;
             desc.fConfig = kAlpha_half_GrPixelConfig;
             desc.fOrigin = 0 == origin ?
             kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin;
-            
+
             GrContext* context = NULL;
             GrContextFactory::GLContextType type =
             static_cast<GrContextFactory::GLContextType>(glCtxType);
             if (!GrContextFactory::IsRenderingGLContext(type)) {
                 continue;
             }
             context = factory->get(type);
             if (NULL == context){
                 continue;
             }
-            
+
             SkAutoTUnref<GrTexture> fpTexture(context->createUncachedTexture(desc,
                                                                              NULL,
                                                                              0));
-            
+
             // 16-bit floating point textures are NOT supported everywhere
             if (NULL == fpTexture) {
                 continue;
             }
-            
+
             // write square
             fpTexture->writePixels(0, 0, DEV_W, DEV_H, desc.fConfig, controlPixelData, 0);
             fpTexture->readPixels(0, 0, DEV_W, DEV_H, desc.fConfig, readBuffer, 0);
             for (int j = 0; j < HALF_CONTROL_ARRAY_SIZE; ++j) {
                 REPORTER_ASSERT(reporter, readBuffer[j] == controlPixelData[j]);
             }
         }
     }
 }
 
 #endif