commit f84ad646f94ee959eb17d05f072935edd1ad14fd
author scroggo <scroggo@chromium.org> Mon Oct 31 09:02:57 2016 -0700
committer Commit bot <commit-bot@chromium.org> Mon Oct 31 09:02:57 2016 -0700
tree b3c2c605b3a24cb84ee17bc8a3a2a0f680c8fc49
parent a9fd106d0c4dd5449c607add0716db7bbd81bc73

Reland "Build SkRawCodec in GN"

Add BUILD.gn files for dng_sdk and piex and updated BUILD.gn to
build SkRawCodec.

We stopped testing raw images when we switched to GN, so this will
bring back our testing.

Leave SkRawCodec disabled on Windows, where we've had problems in the
past.

Originally landed in issue 4603. Reverted due to build errors.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2463433002

Review-Url: https://codereview.chromium.org/2463433002

BUILD.gn

diff --git a/BUILD.gn b/BUILD.gn
index 96ee628..d5a6ad0 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -20,6 +20,7 @@
   skia_use_libpng = true
   skia_use_libwebp = !is_fuchsia
   skia_use_mesa = false
+  skia_use_raw = !is_win
   skia_use_sfntly = !is_fuchsia && !is_win  # TODO: icu on Windows, re-enable this.
   skia_use_zlib = true
 
@@ -284,9 +285,13 @@
                              [
                                "public_defines",
                                "sources_when_disabled",
+                               "configs_to_remove",
                              ])
       all_dependent_configs = [ ":" + target_name + "_public" ]
       configs += skia_library_configs
+      if (defined(invoker.configs_to_remove)) {
+        configs -= invoker.configs_to_remove
+      }
     }
   } else {
     source_set(target_name) {
@@ -298,6 +303,7 @@
                                "libs",
                                "sources",
                                "sources_when_disabled",
+                               "configs_to_remove",
                              ])
       if (defined(invoker.sources_when_disabled)) {
         sources = invoker.sources_when_disabled
@@ -442,6 +448,26 @@
   ]
 }
 
+optional("raw") {
+  enabled = skia_use_raw && skia_use_libjpeg_turbo && skia_use_zlib
+  public_defines = [ "SK_CODEC_DECODES_RAW" ]
+
+  deps = [
+    "//third_party/dng_sdk",
+    "//third_party/libjpeg-turbo:libjpeg",
+    "//third_party/piex",
+  ]
+
+  # SkRawCodec catches any exceptions thrown by dng_sdk, insulating the rest of
+  # Skia.
+  configs_to_remove = [ "//gn:no_exceptions" ]
+
+  sources = [
+    "src/codec/SkRawAdapterCodec.cpp",
+    "src/codec/SkRawCodec.cpp",
+  ]
+}
+
 optional("typeface_freetype") {
   enabled = skia_use_freetype
 
@@ -501,6 +527,7 @@
     ":none",
     ":pdf",
     ":png",
+    ":raw",
     ":sse2",
     ":sse41",
     ":sse42",