fixed sksl static ifs to work for CircleEffect

static ifs (and switches) in .fp files are a bit tricky, because they
aren't necessarily static when the CPP file is being produced. They
become static when the CPP file produces the final SkSL; at this point
the final values of the 'in' variables are known.

This change permits 'deferred' static ifs and switches. The initial
compilation (.fp -> .cpp) passes the @if / @switch through, and then
the final compilation (.cpp's generated SkSL -> GLSL or whatever)
enforces the static test.

Bug: skia:
Change-Id: I0087dfe1725c8fd350507ac77f64db1d82659cdf
Reviewed-on: https://skia-review.googlesource.com/23403
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/sksl/SkSLGLSLCodeGenerator.h b/src/sksl/SkSLGLSLCodeGenerator.h
index 5716bde70d..6fe25d3a69 100644
--- a/src/sksl/SkSLGLSLCodeGenerator.h
+++ b/src/sksl/SkSLGLSLCodeGenerator.h
@@ -162,7 +162,7 @@ protected:
 
     void writeBlock(const Block& b);
 
-    void writeIfStatement(const IfStatement& stmt);
+    virtual void writeIfStatement(const IfStatement& stmt);
 
     void writeForStatement(const ForStatement& f);
 
@@ -170,7 +170,7 @@ protected:
 
     void writeDoStatement(const DoStatement& d);
 
-    void writeSwitchStatement(const SwitchStatement& s);
+    virtual void writeSwitchStatement(const SwitchStatement& s);
 
     void writeReturnStatement(const ReturnStatement& r);