Implement fast, correct gamma conversion for color xforms

bench/ColorCodecBench.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "ColorCodecBench.h"
 #include "Resources.h"
 #include "SkCodec.h"
@@ skipping 42 matching lines @@
     SkASSERT(xform);
 
     void* dst = fDst.get();
     for (int y = 0; y < fInfo.height(); y++) {
 #ifdef SK_DEBUG
         const int rows =
 #endif
         codec->getScanlines(fSrc.get(), 1, 0);
         SkASSERT(1 == rows);
 
-        xform->xform_RGBA_8888((uint32_t*) dst, (uint32_t*) fSrc.get(), fInfo.width());
+        xform->xform_RGB1_8888((uint32_t*) dst, (uint32_t*) fSrc.get(), fInfo.width());
         dst = SkTAddOffset<void>(dst, fInfo.minRowBytes());
     }
 }
 
 #if defined(SK_TEST_QCMS)
 void ColorCodecBench::decodeAndXformQCMS() {
     SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(fEncoded.get()));
 #ifdef SK_DEBUG
     const SkCodec::Result result =
 #endif
@@ skipping 34 matching lines @@
     if (!srcSpace) {
         srcSpace = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
     }
     std::unique_ptr<SkColorSpaceXform> xform = SkColorSpaceXform::New(srcSpace, fDstSpace);
     SkASSERT(xform);
 
     void* dst = fDst.get();
     void* src = fSrc.get();
     for (int y = 0; y < fInfo.height(); y++) {
         // Transform in place
-        xform->xform_RGBA_8888((uint32_t*) dst, (uint32_t*) src, fInfo.width());
+        xform->xform_RGB1_8888((uint32_t*) dst, (uint32_t*) src, fInfo.width());
         dst = SkTAddOffset<void>(dst, fInfo.minRowBytes());
         src = SkTAddOffset<void>(src, fInfo.minRowBytes());
     }
 }
 
 #if defined(SK_TEST_QCMS)
 void ColorCodecBench::xformOnlyQCMS() {
     SkAutoTCallVProc<qcms_profile, qcms_profile_release>
             srcSpace(qcms_profile_from_memory(fSrcData->data(), fSrcData->size()));
     SkASSERT(srcSpace);
@@ skipping 68 matching lines @@
 #endif
         {
             if (FLAGS_xform_only) {
                 this->xformOnly();
             } else {
                 this->decodeAndXform();
             }
         }
     }
 }