1 files changed, 91 insertions, 0 deletions
diff --git a/src/core/SkLights.cpp b/src/core/SkLights.cpp
new file mode 100644
index 0000000000..e6c4796506
--- /dev/null
+++ b/src/core/SkLights.cpp
@@ -0,0 +1,91 @@
+
+/*
+ * 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 "SkColorSpaceXformer.h"
+#include "SkLights.h"
+#include "SkReadBuffer.h"
+
+sk_sp<SkLights> SkLights::MakeFromBuffer(SkReadBuffer& buf) {
+    Builder builder;
+
+    SkColor3f ambColor;
+    if (!buf.readScalarArray(&ambColor.fX, 3)) {
+        return nullptr;
+    }
+
+    builder.setAmbientLightColor(ambColor);
+
+    int numLights = buf.readInt();
+
+    for (int l = 0; l < numLights; ++l) {
+        bool isPoint = buf.readBool();
+
+        SkColor3f color;
+        if (!buf.readScalarArray(&color.fX, 3)) {
+            return nullptr;
+        }
+
+        SkVector3 dirOrPos;
+        if (!buf.readScalarArray(&dirOrPos.fX, 3)) {
+            return nullptr;
+        }
+
+        if (isPoint) {
+            SkScalar intensity;
+            intensity = buf.readScalar();
+            Light light = Light::MakePoint(color, dirOrPos, intensity);
+            builder.add(light);
+        } else {
+            Light light = Light::MakeDirectional(color, dirOrPos);
+            builder.add(light);
+        }
+    }
+
+    return builder.finish();
+}
+
+static SkColor3f xform_color(const SkColor3f& color, SkColorSpaceXformer* xformer) {
+    SkColor origColor = SkColorSetARGB(0xFF,
+                                       SkScalarRoundToInt(color.fX),
+                                       SkScalarRoundToInt(color.fY),
+                                       SkScalarRoundToInt(color.fZ));
+    SkColor xformedColor = xformer->apply(origColor);
+    return SkColor3f::Make(SkIntToScalar(SkGetPackedR32(xformedColor)),
+                           SkIntToScalar(SkGetPackedG32(xformedColor)),
+                           SkIntToScalar(SkGetPackedB32(xformedColor)));
+}
+
+sk_sp<SkLights> SkLights::makeColorSpace(SkColorSpaceXformer* xformer) const {
+    SkLights::Builder builder;
+    for (int i = 0; i < this->numLights(); i++) {
+        Light light(fLights[i].type(), xform_color(fLights[i].color(), xformer),
+                    fLights[i].fDirOrPos, fLights[i].fIntensity);
+        builder.add(light);
+    }
+    builder.setAmbientLightColor(xform_color(fAmbientLightColor, xformer));
+    return builder.finish();
+}
+
+void SkLights::flatten(SkWriteBuffer& buf) const {
+    buf.writeScalarArray(&this->ambientLightColor().fX, 3);
+
+    buf.writeInt(this->numLights());
+    for (int l = 0; l < this->numLights(); ++l) {
+        const Light& light = this->light(l);
+
+        bool isPoint = Light::kPoint_LightType == light.type();
+
+        buf.writeBool(isPoint);
+        buf.writeScalarArray(&light.color().fX, 3);
+        buf.writeScalarArray(&light.dir().fX, 3);
+
+        if (isPoint) {
+            buf.writeScalar(light.intensity());
+        }
+    }
+}