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-rw-r--r--src/gpu/GrFragmentProcessor.cpp8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/gpu/GrFragmentProcessor.cpp b/src/gpu/GrFragmentProcessor.cpp
index 96a0f716c9..bad7ebe036 100644
--- a/src/gpu/GrFragmentProcessor.cpp
+++ b/src/gpu/GrFragmentProcessor.cpp
@@ -310,9 +310,11 @@ sk_sp<GrFragmentProcessor> GrFragmentProcessor::RunInSeries(sk_sp<GrFragmentProc
class GLFP : public GrGLSLFragmentProcessor {
public:
void emitCode(EmitArgs& args) override {
- SkString input(args.fInputColor);
- for (int i = 0; i < this->numChildProcessors() - 1; ++i) {
- SkString temp;
+ // First guy's input might be nil.
+ SkString temp("out0");
+ this->emitChild(0, args.fInputColor, &temp, args);
+ SkString input = temp;
+ for (int i = 1; i < this->numChildProcessors() - 1; ++i) {
temp.printf("out%d", i);
this->emitChild(i, input.c_str(), &temp, args);
input = temp;