1 files changed, 49 insertions, 0 deletions
diff --git a/src/gpu/glsl/GrGLSLVertexShaderBuilder.h b/src/gpu/glsl/GrGLSLVertexShaderBuilder.h
new file mode 100644
index 0000000000..92edd9ae81
--- /dev/null
+++ b/src/gpu/glsl/GrGLSLVertexShaderBuilder.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrGLSLVertexShader_DEFINED
+#define GrGLSLVertexShader_DEFINED
+
+#include "GrGLSLShaderBuilder.h"
+#include "GrGeometryProcessor.h"
+
+class GrGLSLVarying;
+
+class GrGLSLVertexBuilder : public GrGLSLShaderBuilder {
+public:
+    GrGLSLVertexBuilder(GrGLSLProgramBuilder* program);
+
+    void transformToNormalizedDeviceSpace(const GrShaderVar& posVar);
+    void emitAttributes(const GrGeometryProcessor& gp);
+
+    void addAttribute(const GrGeometryProcessor::Attribute* attr) {
+        this->addAttribute(GrShaderVar(attr->fName,
+                                       GrVertexAttribTypeToSLType(attr->fType),
+                                       GrShaderVar::kAttribute_TypeModifier,
+                                       GrShaderVar::kNonArray,
+                                       attr->fPrecision));
+    }
+
+private:
+    /*
+     * Internal call for GrGLProgramBuilder.addVarying
+     */
+    void addVarying(const char* name, GrSLPrecision, GrGLSLVarying*);
+
+    // an internal call which checks for uniquness of a var before adding it to the list of inputs
+    bool addAttribute(const GrShaderVar& var);
+
+    void onFinalize() override {}
+    
+    const char* fRtAdjustName;
+
+    friend class GrGLProgramBuilder;
+
+    typedef GrGLSLShaderBuilder INHERITED;
+};
+
+#endif