SkColorSpaceXformCanvas

TODO:
  images
  shaders
  color filters
  image filters
  a couple stray color arrays

Change-Id: Ib91639bb0a6a00af737dd5186180011fe5120860
Reviewed-on: https://skia-review.googlesource.com/9529
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>

3 files changed, 28 insertions, 1 deletions

diff --git a/dm/DM.cpp b/dm/DM.cpp
index bec5dd3ddc..cc662bc44f 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -890,8 +890,14 @@ static Sink* create_sink(const GrContextOptions& grCtxOptions, const SkCommandLi
     return nullptr;
 }
 
+static sk_sp<SkColorSpace> adobe_rgb() {
+    return SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma,
+                                 SkColorSpace::kAdobeRGB_Gamut);
+}
+
 static Sink* create_via(const SkString& tag, Sink* wrapped) {
 #define VIA(t, via, ...) if (tag.equals(t)) { return new via(__VA_ARGS__); }
+    VIA("adobe",     ViaCSXform,           wrapped, adobe_rgb());
     VIA("lite",      ViaLite,              wrapped);
     VIA("pipe",      ViaPipe,              wrapped);
     VIA("twice",     ViaTwice,             wrapped);
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index 6561ad9da3..4f5cd43af8 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -13,6 +13,7 @@
 #include "SkCodecImageGenerator.h"
 #include "SkColorSpace.h"
 #include "SkColorSpaceXform.h"
+#include "SkColorSpaceXformCanvas.h"
 #include "SkColorSpace_XYZ.h"
 #include "SkCommonFlags.h"
 #include "SkData.h"
@@ -1839,4 +1840,16 @@ Error ViaLite::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream, SkStrin
     });
 }
 
+/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+
+ViaCSXform::ViaCSXform(Sink* sink, sk_sp<SkColorSpace> cs) : Via(sink), fCS(std::move(cs)) {}
+
+Error ViaCSXform::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream, SkString* log) const {
+    return draw_to_canvas(fSink.get(), bitmap, stream, log, src.size(),
+                          [&](SkCanvas* canvas) -> Error {
+        auto proxy = SkCreateColorSpaceXformCanvas(canvas, fCS);
+        return src.draw(proxy.get());
+    });
+}
+
 }  // namespace DM
diff --git a/dm/DMSrcSink.h b/dm/DMSrcSink.h
index d4fe29de4e..c973e3b393 100644
--- a/dm/DMSrcSink.h
+++ b/dm/DMSrcSink.h
@@ -349,7 +349,7 @@ public:
 class PipeSink : public Sink {
 public:
     PipeSink();
-    
+
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
     const char* fileExtension() const override { return "skpipe"; }
     SinkFlags flags() const override { return SinkFlags{ SinkFlags::kVector, SinkFlags::kDirect }; }
@@ -494,6 +494,14 @@ public:
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
 };
 
+class ViaCSXform : public Via {
+public:
+    explicit ViaCSXform(Sink*, sk_sp<SkColorSpace>);
+    Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
+private:
+    sk_sp<SkColorSpace> fCS;
+};
+
 }  // namespace DM
 
 #endif//DMSrcSink_DEFINED