add --forceSRGB option to nanobench, to get all src images to be SRGB

bench/nanobench.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.
  */
 
 #include <ctype.h>
 
 #include "nanobench.h"
@@ skipping 105 matching lines @@
 DEFINE_bool(gpuStatsDump, false, "Dump GPU states after each benchmark to json");
 DEFINE_bool(keepAlive, false, "Print a message every so often so that we don't time out");
 DEFINE_string(useThermalManager, "0,1,10,1000", "enabled,threshold,sleepTimeMs,TimeoutMs for "
                                                 "thermalManager\n");
 
 DEFINE_string(sourceType, "",
         "Apply usual --match rules to source type: bench, gm, skp, image, etc.");
 DEFINE_string(benchType,  "",
         "Apply usual --match rules to bench type: micro, recording, playback, skcodec, etc.");
 
+DEFINE_bool(forceSRGB, false, "Force SRGB for imageinfos");
+
 static double now_ms() { return SkTime::GetNSecs() * 1e-6; }
 
 static SkString humanize(double ms) {
     if (FLAGS_verbose) return SkStringPrintf("%llu", (uint64_t)(ms*1e6));
     return HumanizeMs(ms);
 }
 #define HUMANIZE(ms) humanize(ms).c_str()
 
 bool Target::init(SkImageInfo info, Benchmark* bench) {
     if (Benchmark::kRaster_Backend == config.backend) {
@@ skipping 859 matching lines @@
                 sleep(kSec);
             #endif
                 SkDebugf("\nBenchmarks still running...\n");
             }
         }
     };
     static SkThread* intentionallyLeaked = new SkThread(Loop::forever);
     intentionallyLeaked->start();
 }
 
+extern bool gDefaultProfileIsSRGB;
+
 int nanobench_main();
 int nanobench_main() {
     SetupCrashHandler();
     SkAutoGraphics ag;
     SkTaskGroup::Enabler enabled(FLAGS_threads);
 
 #if SK_SUPPORT_GPU
     GrContextOptions grContextOpts;
     gGrFactory.reset(new GrContextFactory(grContextOpts));
 #endif
 
+    if (FLAGS_forceSRGB) {
+        gDefaultProfileIsSRGB = true;
+    }
+
     if (FLAGS_veryVerbose) {
         FLAGS_verbose = true;
     }
 
     if (kAutoTuneLoops != FLAGS_loops) {
         FLAGS_samples     = 1;
         FLAGS_gpuFrameLag = 0;
     }
 
     if (!FLAGS_writePath.isEmpty()) {
@@ skipping 233 matching lines @@
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return nanobench_main();
 }
 #endif