1 files changed, 31 insertions, 0 deletions
diff --git a/src/effects/SkTableColorFilter.cpp b/src/effects/SkTableColorFilter.cpp
index fcf76dcbae..47d6ae2d8c 100644
--- a/src/effects/SkTableColorFilter.cpp
+++ b/src/effects/SkTableColorFilter.cpp
@@ -90,6 +90,8 @@ public:
             GrContext*, const GrColorSpaceInfo&) const override;
 #endif
 
+    void toString(SkString* str) const override;
+
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTable_ColorFilter)
 
     enum {
@@ -138,6 +140,35 @@ private:
     typedef SkColorFilter INHERITED;
 };
 
+void SkTable_ColorFilter::toString(SkString* str) const {
+    const uint8_t* table = fStorage;
+    const uint8_t* tableA = gIdentityTable;
+    const uint8_t* tableR = gIdentityTable;
+    const uint8_t* tableG = gIdentityTable;
+    const uint8_t* tableB = gIdentityTable;
+    if (fFlags & kA_Flag) {
+        tableA = table; table += 256;
+    }
+    if (fFlags & kR_Flag) {
+        tableR = table; table += 256;
+    }
+    if (fFlags & kG_Flag) {
+        tableG = table; table += 256;
+    }
+    if (fFlags & kB_Flag) {
+        tableB = table;
+    }
+
+    str->append("SkTable_ColorFilter (");
+
+    for (int i = 0; i < 256; ++i) {
+        str->appendf("%d: %d,%d,%d,%d\n",
+                     i, tableR[i], tableG[i], tableB[i], tableA[i]);
+    }
+
+    str->append(")");
+}
+
 static const uint8_t gCountNibBits[] = {
     0, 1, 1, 2,
     1, 2, 2, 3,