implemented mustImplementGSInvocationsWithLoop workaround in sksl

Bug: skia:
Change-Id: I8434be89537a8baf9e9c5c7a643d28c03108f4ea
Reviewed-on: https://skia-review.googlesource.com/18154
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 0 insertions, 17 deletions

diff --git a/src/gpu/glsl/GrGLSLGeometryShaderBuilder.cpp b/src/gpu/glsl/GrGLSLGeometryShaderBuilder.cpp
index 01f223f4b3..ea8e73f7b8 100644
--- a/src/gpu/glsl/GrGLSLGeometryShaderBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLGeometryShaderBuilder.cpp
@@ -42,10 +42,6 @@ void GrGLSLGeometryBuilder::configure(InputType inputType, OutputType outputType
                                       int numInvocations) {
     SkASSERT(!this->isConfigured());
     fNumInvocations = numInvocations;
-    if (this->getProgramBuilder()->shaderCaps()->mustImplementGSInvocationsWithLoop()) {
-        maxVertices *= numInvocations;
-        numInvocations = 1;
-    }
     this->addLayoutQualifier(input_type_name(inputType), kIn_InterfaceQualifier);
     this->addLayoutQualifier(SkStringPrintf("invocations = %i", numInvocations).c_str(),
                              kIn_InterfaceQualifier);
@@ -57,17 +53,4 @@ void GrGLSLGeometryBuilder::configure(InputType inputType, OutputType outputType
 void GrGLSLGeometryBuilder::onFinalize() {
     SkASSERT(this->isConfigured());
     fProgramBuilder->varyingHandler()->getGeomDecls(&this->inputs(), &this->outputs());
-    GrShaderVar sk_InvocationID("sk_InvocationID", kInt_GrSLType);
-    this->declareGlobal(sk_InvocationID);
-    SkASSERT(sk_InvocationID.getName() == SkString("sk_InvocationID"));
-    if (this->getProgramBuilder()->shaderCaps()->mustImplementGSInvocationsWithLoop()) {
-        SkString invokeFn;
-        this->emitFunction(kVoid_GrSLType, "invoke", 0, nullptr, this->code().c_str(), &invokeFn);
-        this->code().printf("for (sk_InvocationID = 0; sk_InvocationID < %i; ++sk_InvocationID) {"
-                                "%s();"
-                                "EndPrimitive();"
-                            "}", fNumInvocations, invokeFn.c_str());
-    } else {
-        this->codePrependf("sk_InvocationID = gl_InvocationID;");
-    }
 }