Add support for half float alpha textures.

src/gpu/GrDrawTarget.cpp

 
 /*
  * 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 1086 matching lines @@
         "Alpha8",   // kAlpha_8_GrPixelConfig,
         "Index8",   // kIndex_8_GrPixelConfig,
         "RGB565",   // kRGB_565_GrPixelConfig,
         "RGBA444",  // kRGBA_4444_GrPixelConfig,
         "RGBA8888", // kRGBA_8888_GrPixelConfig,
         "BGRA8888", // kBGRA_8888_GrPixelConfig,
         "ETC1",     // kETC1_GrPixelConfig,
         "LATC",     // kLATC_GrPixelConfig,
         "R11EAC",   // kR11_EAC_GrPixelConfig,
         "ASTC12x12",// kASTC_12x12_GrPixelConfig,
-        "RGBAFloat",  // kRGBA_float_GrPixelConfig
+        "RGBAFloat",// kRGBA_float_GrPixelConfig
+        "AlphaHalf",// kAlpha_half_GrPixelConfig
     };
     GR_STATIC_ASSERT(0  == kUnknown_GrPixelConfig);
     GR_STATIC_ASSERT(1  == kAlpha_8_GrPixelConfig);
     GR_STATIC_ASSERT(2  == kIndex_8_GrPixelConfig);
     GR_STATIC_ASSERT(3  == kRGB_565_GrPixelConfig);
     GR_STATIC_ASSERT(4  == kRGBA_4444_GrPixelConfig);
     GR_STATIC_ASSERT(5  == kRGBA_8888_GrPixelConfig);
     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(12 == kAlpha_half_GrPixelConfig);
     GR_STATIC_ASSERT(SK_ARRAY_COUNT(kConfigNames) == kGrPixelConfigCnt);
 
     SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig][0]);
     SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig][1]);
 
     for (size_t i = 1; i < SK_ARRAY_COUNT(kConfigNames); ++i)  {
         r.appendf("%s is renderable: %s, with MSAA: %s\n",
                   kConfigNames[i],
                   gNY[fConfigRenderSupport[i][0]],
                   gNY[fConfigRenderSupport[i][1]]);
@@ skipping 26 matching lines @@
                              GrDrawState::AutoRestoreStencil* ars,
                              GrDrawState* ds,
                              GrClipMaskManager::ScissorState* scissorState) {
     return fClipMaskManager.setupClipping(ds,
                                           are,
                                           ars,
                                           scissorState,
                                           this->getClip(),
                                           devBounds);
 }