1 files changed, 77 insertions, 0 deletions
diff --git a/dom/canvas/WebGLShaderValidator.h b/dom/canvas/WebGLShaderValidator.h
new file mode 100644
index 000000000..deb1c7c7f
--- /dev/null
+++ b/dom/canvas/WebGLShaderValidator.h
@@ -0,0 +1,77 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef WEBGL_SHADER_VALIDATOR_H_
+#define WEBGL_SHADER_VALIDATOR_H_
+
+#include "angle/ShaderLang.h"
+#include "GLDefs.h"
+#include "nsString.h"
+#include <string>
+
+namespace mozilla {
+namespace webgl {
+
+class ShaderValidator final
+{
+    const ShHandle mHandle;
+    const ShCompileOptions mCompileOptions;
+    const int mMaxVaryingVectors;
+    bool mHasRun;
+
+public:
+    static ShaderValidator* Create(GLenum shaderType, ShShaderSpec spec,
+                                   ShShaderOutput outputLanguage,
+                                   const ShBuiltInResources& resources,
+                                   ShCompileOptions compileOptions);
+
+private:
+    ShaderValidator(ShHandle handle, ShCompileOptions compileOptions,
+                    int maxVaryingVectors)
+        : mHandle(handle)
+        , mCompileOptions(compileOptions)
+        , mMaxVaryingVectors(maxVaryingVectors)
+        , mHasRun(false)
+    { }
+
+public:
+    ~ShaderValidator();
+
+    bool ValidateAndTranslate(const char* source);
+    void GetInfoLog(nsACString* out) const;
+    void GetOutput(nsACString* out) const;
+    bool CanLinkTo(const ShaderValidator* prev, nsCString* const out_log) const;
+    size_t CalcNumSamplerUniforms() const;
+    size_t NumAttributes() const;
+
+    bool FindAttribUserNameByMappedName(const std::string& mappedName,
+                                        const std::string** const out_userName) const;
+
+    bool FindAttribMappedNameByUserName(const std::string& userName,
+                                        const std::string** const out_mappedName) const;
+
+    bool FindVaryingMappedNameByUserName(const std::string& userName,
+                                         const std::string** const out_mappedName) const;
+
+    bool FindVaryingByMappedName(const std::string& mappedName,
+                                 std::string* const out_userName,
+                                 bool* const out_isArray) const;
+    bool FindUniformByMappedName(const std::string& mappedName,
+                                 std::string* const out_userName,
+                                 bool* const out_isArray) const;
+    bool UnmapUniformBlockName(const nsACString& baseMappedName,
+                               nsCString* const out_baseUserName) const;
+
+    void EnumerateFragOutputs(std::map<nsCString, const nsCString> &out_FragOutputs) const;
+
+    bool ValidateTransformFeedback(const std::vector<nsString>& userNames,
+                                   uint32_t maxComponents, nsCString* const out_errorText,
+                                   std::vector<std::string>* const out_mappedNames);
+};
+
+} // namespace webgl
+} // namespace mozilla
+
+#endif // WEBGL_SHADER_VALIDATOR_H_