Support sRGB dsts in opt code

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"
 #include "SkColorSpaceXform.h"
 #include "SkCommandLineFlags.h"
 
 #if defined(SK_TEST_QCMS)
-DEFINE_bool(qcms, false, "Bench qcms color conversion");
+DEFINE_bool(qcms,       false, "Bench qcms color conversion");
 #endif
 DEFINE_bool(xform_only, false, "Only time the color xform, do not include the decode time");
+DEFINE_bool(srgb,       false, "Convert to srgb dst space");
 
 ColorCodecBench::ColorCodecBench(const char* name, sk_sp<SkData> encoded)
     : fEncoded(std::move(encoded))
 #if defined(SK_TEST_QCMS)
     , fDstSpaceQCMS(nullptr)
 #endif
 {
     fName.appendf("Color%s", FLAGS_xform_only ? "Xform" : "Codec");
 #if defined(SK_TEST_QCMS)
     fName.appendf("%s", FLAGS_qcms ? "QCMS" : "");
@@ skipping 135 matching lines @@
     }
 
     fSrcData = codec->getICCData();
     sk_sp<SkData> dstData = SkData::MakeFromFileName(
             GetResourcePath("monitor_profiles/HP_ZR30w.icc").c_str());
     SkASSERT(dstData);
 
 
 #if defined(SK_TEST_QCMS)
     if (FLAGS_qcms) {
-        fDstSpaceQCMS.reset(qcms_profile_from_memory(dstData->data(), dstData->size()));
+        fDstSpaceQCMS.reset(FLAGS_srgb ?
+                qcms_profile_sRGB() :
+                qcms_profile_from_memory(dstData->data(), dstData->size()));
         SkASSERT(fDstSpaceQCMS);
 
         // This call takes a non-trivial amount of time, but I think it's the most fair to
         // treat it as overhead.  It only needs to happen once.
         qcms_profile_precache_output_transform(fDstSpaceQCMS);
     } else
 #endif
     {
-        fDstSpace = SkColorSpace::NewICC(dstData->data(), dstData->size());
+        fDstSpace = FLAGS_srgb ? SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named) :
+                                 SkColorSpace::NewICC(dstData->data(), dstData->size());
         SkASSERT(fDstSpace);
     }
 }
 
 void ColorCodecBench::onDraw(int n, SkCanvas*) {
     for (int i = 0; i < n; i++) {
 #if defined(SK_TEST_QCMS)
         if (FLAGS_qcms) {
             if (FLAGS_xform_only) {
                 this->xformOnlyQCMS();
             } else {
                 this->decodeAndXformQCMS();
             }
         } else
 #endif
         {
             if (FLAGS_xform_only) {
                 this->xformOnly();
             } else {
                 this->decodeAndXform();
             }
         }
     }
 }