1 files changed, 147 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/AttributeMap.cpp b/gfx/angle/checkout/src/libANGLE/AttributeMap.cpp
new file mode 100644
index 0000000000..6b56aee142
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/AttributeMap.cpp
@@ -0,0 +1,147 @@
+//
+// Copyright 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#include "libANGLE/AttributeMap.h"
+
+#include "common/debug.h"
+
+namespace egl
+{
+
+AttributeMap::AttributeMap() = default;
+
+AttributeMap::AttributeMap(const AttributeMap &other) = default;
+
+AttributeMap &AttributeMap::operator=(const AttributeMap &other) = default;
+
+AttributeMap::~AttributeMap() = default;
+
+void AttributeMap::insert(EGLAttrib key, EGLAttrib value)
+{
+    mValidatedAttributes[key] = value;
+}
+
+bool AttributeMap::contains(EGLAttrib key) const
+{
+    return (attribs().find(key) != attribs().end());
+}
+
+EGLAttrib AttributeMap::get(EGLAttrib key) const
+{
+    auto iter = attribs().find(key);
+    ASSERT(iter != attribs().end());
+    return iter->second;
+}
+
+EGLAttrib AttributeMap::get(EGLAttrib key, EGLAttrib defaultValue) const
+{
+    auto iter = attribs().find(key);
+    return (iter != attribs().end()) ? iter->second : defaultValue;
+}
+
+EGLint AttributeMap::getAsInt(EGLAttrib key) const
+{
+    return static_cast<EGLint>(get(key));
+}
+
+EGLint AttributeMap::getAsInt(EGLAttrib key, EGLint defaultValue) const
+{
+    return static_cast<EGLint>(get(key, static_cast<EGLAttrib>(defaultValue)));
+}
+
+bool AttributeMap::isEmpty() const
+{
+    return attribs().empty();
+}
+
+std::vector<EGLint> AttributeMap::toIntVector() const
+{
+    std::vector<EGLint> ret;
+    for (const auto &pair : attribs())
+    {
+        ret.push_back(static_cast<EGLint>(pair.first));
+        ret.push_back(static_cast<EGLint>(pair.second));
+    }
+    ret.push_back(EGL_NONE);
+
+    return ret;
+}
+
+AttributeMap::const_iterator AttributeMap::begin() const
+{
+    return attribs().begin();
+}
+
+AttributeMap::const_iterator AttributeMap::end() const
+{
+    return attribs().end();
+}
+
+bool AttributeMap::validate(const ValidationContext *val,
+                            const egl::Display *display,
+                            AttributeValidationFunc validationFunc) const
+{
+    if (mIntPointer)
+    {
+        for (const EGLint *curAttrib = mIntPointer; curAttrib[0] != EGL_NONE; curAttrib += 2)
+        {
+            if (!validationFunc(val, display, curAttrib[0]))
+            {
+                return false;
+            }
+
+            mValidatedAttributes[static_cast<EGLAttrib>(curAttrib[0])] =
+                static_cast<EGLAttrib>(curAttrib[1]);
+        }
+        mIntPointer = nullptr;
+    }
+
+    if (mAttribPointer)
+    {
+        for (const EGLAttrib *curAttrib = mAttribPointer; curAttrib[0] != EGL_NONE; curAttrib += 2)
+        {
+            if (!validationFunc(val, display, curAttrib[0]))
+            {
+                return false;
+            }
+
+            mValidatedAttributes[curAttrib[0]] = curAttrib[1];
+        }
+        mAttribPointer = nullptr;
+    }
+
+    return true;
+}
+
+void AttributeMap::initializeWithoutValidation() const
+{
+    auto alwaysTrue = [](const ValidationContext *, const egl::Display *, EGLAttrib) {
+        return true;
+    };
+    (void)validate(nullptr, nullptr, alwaysTrue);
+}
+
+// static
+AttributeMap AttributeMap::CreateFromIntArray(const EGLint *attributes)
+{
+    AttributeMap map;
+    map.mIntPointer = attributes;
+    return map;
+}
+
+// static
+AttributeMap AttributeMap::CreateFromAttribArray(const EGLAttrib *attributes)
+{
+    AttributeMap map;
+    map.mAttribPointer = attributes;
+    return map;
+}
+
+bool AttributeMap::isValidated() const
+{
+    return mIntPointer == nullptr && mAttribPointer == nullptr;
+}
+}  // namespace egl