From 11a2226cfe336a0d3cbed5ff090dcc657911a8ef Mon Sep 17 00:00:00 2001
From: Andrew Knight <andrew.knight@digia.com>
Date: Tue, 1 Oct 2013 09:44:12 +0300
Subject: ANGLE: Support WinRT

This enables EGL for WinRT's native types, and adjusts some codepaths
to accommodate differences in between desktop Windows and WinRT.

- WinRT native handles added to eglplatform.h
- References to native handles in libEGL/libGLESv2 follow eglplatform.h
- D3D 11.1 structures and methods used when necessary
- TLS replaced with thread attribute
- LocalAlloc/Free replaced with Heap API

Change-Id: Ia90377e700d335a1c569c2145008dd4b0dfd84d3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
---
 src/3rdparty/angle/src/compiler/ossource_winrt.cpp | 75 ++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 src/3rdparty/angle/src/compiler/ossource_winrt.cpp

(limited to 'src/3rdparty/angle/src/compiler/ossource_winrt.cpp')

diff --git a/src/3rdparty/angle/src/compiler/ossource_winrt.cpp b/src/3rdparty/angle/src/compiler/ossource_winrt.cpp
new file mode 100644
index 0000000000..84443abc02
--- /dev/null
+++ b/src/3rdparty/angle/src/compiler/ossource_winrt.cpp
@@ -0,0 +1,75 @@
+//
+// Copyright (c) 2002-2010 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 "compiler/osinclude.h"
+//
+// This file contains contains Windows Runtime specific functions
+//
+
+#if !defined(ANGLE_OS_WINRT)
+#error Trying to build a WinRT specific file in a non-WinRT build.
+#endif
+
+#include <vector>
+
+
+//
+// Thread Local Storage Operations
+//
+__declspec(thread) std::vector<void *> *tls = nullptr;
+__declspec(thread) std::vector<OS_TLSIndex> *freeIndices = nullptr;
+
+OS_TLSIndex OS_AllocTLSIndex()
+{
+    if (!tls)
+        tls = new std::vector<void*>;
+
+    if (freeIndices && !freeIndices->empty()) {
+        OS_TLSIndex index = freeIndices->back();
+        freeIndices->pop_back();
+        return index;
+    } else {
+        tls->push_back(nullptr);
+        return tls->size() - 1;
+    }
+}
+
+
+void *OS_GetTLSValue(OS_TLSIndex nIndex)
+{
+    ASSERT(nIndex != OS_INVALID_TLS_INDEX);
+    ASSERT(tls);
+
+    return tls->at(nIndex);
+}
+
+
+bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue)
+{
+    if (!tls || nIndex >= tls->size() || nIndex == OS_INVALID_TLS_INDEX) {
+        ASSERT(0 && "OS_SetTLSValue(): Invalid TLS Index");
+        return false;
+    }
+
+    tls->at(nIndex) = lpvValue;
+    return true;
+}
+
+
+bool OS_FreeTLSIndex(OS_TLSIndex nIndex)
+{
+    if (!tls || nIndex >= tls->size() || nIndex == OS_INVALID_TLS_INDEX) {
+        ASSERT(0 && "OS_SetTLSValue(): Invalid TLS Index");
+        return false;
+    }
+
+    if (!freeIndices)
+        freeIndices = new std::vector<OS_TLSIndex>;
+
+    freeIndices->push_back(nIndex);
+
+    return true;
+}
-- 
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