Add ColorCodecSrc for testing/comparison on color corrected decodes

dm/DM.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "CrashHandler.h"
 #include "DMJsonWriter.h"
 #include "DMSrcSink.h"
@@ skipping 744 matching lines @@
     };
 
     for (uint32_t i = 0; i < SK_ARRAY_COUNT(exts); i++) {
         if (0 == strcmp(exts[i], ext)) {
             return true;
         }
     }
     return false;
 }
 
+static void push_color_codec_srcs(Path path) {
+    ColorCodecSrc* src = new ColorCodecSrc(path, ColorCodecSrc::kBaseline_Mode);

[scroggo, 2016/04/29 15:36:51]

Given that this is only two lines and only called in one place, I would
recommend inlining it.

[msarett, 2016/04/29 16:37:24]

Done.

+    push_src("image", "color_codec_baseline", src);
+}
+
 static bool gather_srcs() {
     for (const skiagm::GMRegistry* r = skiagm::GMRegistry::Head(); r; r = r->next()) {
         push_src("gm", "", new GMSrc(r->factory()));
     }
     for (int i = 0; i < FLAGS_skps.count(); i++) {
         const char* path = FLAGS_skps[i];
         if (sk_isdir(path)) {
             SkOSFile::Iter it(path, "skp");
             for (SkString file; it.next(&file); ) {
                 push_src("skp", "", new SKPSrc(SkOSPath::Join(path, file.c_str())));
             }
         } else {
             push_src("skp", "", new SKPSrc(path));
         }
     }
 
     SkTArray<SkString> images;
-    if (!CollectImages(&images)) {
+    if (!CollectImages(FLAGS_images, &images)) {
         return false;
     }
 
     for (auto image : images) {
         push_codec_srcs(image);
         if (FLAGS_simpleCodec) {
             continue;
         }
 
         const char* ext = strrchr(image.c_str(), '.');
         if (ext && brd_supported(ext+1)) {
             push_brd_srcs(image);
         }
     }
 
+    SkTArray<SkString> colorImages;
+    if (!CollectImages(FLAGS_colorImages, &colorImages)) {
+        return false;
+    }
+
+    for (auto colorImage : colorImages) {
+        push_color_codec_srcs(colorImage);
+    }
+
     return true;
 }
 
 static void push_sink(const SkCommandLineConfig& config, Sink* s) {
     SkAutoTDelete<Sink> sink(s);
 
     // Try a simple Src as a canary.  If it fails, skip this sink.
     struct : public Src {
         Error draw(SkCanvas* c) const override {
             c->drawRect(SkRect::MakeWH(1,1), SkPaint());
@@ skipping 625 matching lines @@
 #endif
 }
 } // namespace skiatest
 
 #if !defined(SK_BUILD_FOR_IOS)
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return dm_main();
 }
 #endif