ANGLE: Upgrade to version 1.2.30d6c255d238

The following patches have been changed:

0001-Fix-compilation-for-MSVC-2008-and-std-tuple.patch
  Removed because it is no longer possible to build ANGLE with MSVC2008

0002-Fix-compilation-of-ANGLE-with-mingw-tdm64-gcc-4.8.1.patch
  Removed because the minimum version of MinGW moved to 4.8.2

0005-Fix-build-when-SSE2-is-not-available.patch
  Removed because it was fixed upstream

0006-Fix-compilation-of-libGLESv2-with-older-MinGW-w64-he.patch
  Removed because older versions of MinGW are not supported

0007-Fix-ANGLE-build-with-Microsoft-Visual-Studio-14-CTP.patch
  Removed because it was fixed upstream

Task-number: QTBUG-41903
Change-Id: I976d30802f7f6fee725cf9a9f1325d5e82609835
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>

6 files changed, 170 insertions, 178 deletions

diff --git a/src/3rdparty/angle/include/EGL/egl.h b/src/3rdparty/angle/include/EGL/egl.h
index ab2f0cdfbe..12590a0e20 100644
--- a/src/3rdparty/angle/include/EGL/egl.h
+++ b/src/3rdparty/angle/include/EGL/egl.h
@@ -238,7 +238,7 @@ EGLAPI EGLContext EGLAPIENTRY eglGetCurrentContext (void);
 #ifndef EGL_VERSION_1_5
 #define EGL_VERSION_1_5 1
 typedef void *EGLSync;
-typedef khronos_intptr_t EGLAttrib;
+typedef intptr_t EGLAttrib;
 typedef khronos_utime_nanoseconds_t EGLTime;
 #define EGL_CONTEXT_MAJOR_VERSION         0x3098
 #define EGL_CONTEXT_MINOR_VERSION         0x30FB
diff --git a/src/3rdparty/angle/include/EGL/eglext.h b/src/3rdparty/angle/include/EGL/eglext.h
index 989359b026..0cc5eec293 100644
--- a/src/3rdparty/angle/include/EGL/eglext.h
+++ b/src/3rdparty/angle/include/EGL/eglext.h
@@ -59,7 +59,7 @@ extern "C" {
 #ifndef EGL_KHR_cl_event2
 #define EGL_KHR_cl_event2 1
 typedef void *EGLSyncKHR;
-typedef khronos_intptr_t EGLAttribKHR;
+typedef intptr_t EGLAttribKHR;
 typedef EGLSyncKHR (EGLAPIENTRYP PFNEGLCREATESYNC64KHRPROC) (EGLDisplay dpy, EGLenum type, const EGLAttribKHR *attrib_list);
 #ifdef EGL_EGLEXT_PROTOTYPES
 EGLAPI EGLSyncKHR EGLAPIENTRY eglCreateSync64KHR (EGLDisplay dpy, EGLenum type, const EGLAttribKHR *attrib_list);
@@ -442,20 +442,22 @@ EGLAPI EGLBoolean EGLAPIENTRY eglQuerySurfacePointerANGLE (EGLDisplay dpy, EGLSu
 #define EGL_ANGLE_platform_angle 1
 #define EGL_PLATFORM_ANGLE_ANGLE          0x3201
 #define EGL_PLATFORM_ANGLE_TYPE_ANGLE     0x3202
-#define EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE 0x3203
+#define EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE 0x3203
+#define EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE 0x3204
+#define EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE 0x3205
 #endif /* EGL_ANGLE_platform_angle */
 
 #ifndef EGL_ANGLE_platform_angle_d3d
 #define EGL_ANGLE_platform_angle_d3d 1
-#define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3204
-#define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3205
-#define EGL_PLATFORM_ANGLE_TYPE_D3D11_WARP_ANGLE 0x3206
+#define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3206
+#define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3207
+#define EGL_PLATFORM_ANGLE_USE_WARP_ANGLE 0x3208
 #endif /* EGL_ANGLE_platform_angle_d3d */
 
 #ifndef EGL_ANGLE_platform_angle_opengl
 #define EGL_ANGLE_platform_angle_opengl 1
-#define EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x3207
-#define EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE 0x3208
+#define EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x3209
+#define EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE 0x320A
 #endif /* EGL_ANGLE_platform_angle_opengl */
 
 #ifndef EGL_ARM_pixmap_multisample_discard
diff --git a/src/3rdparty/angle/include/EGL/eglplatform.h b/src/3rdparty/angle/include/EGL/eglplatform.h
index ea9f5778ee..2eb3674a0b 100644
--- a/src/3rdparty/angle/include/EGL/eglplatform.h
+++ b/src/3rdparty/angle/include/EGL/eglplatform.h
@@ -67,23 +67,22 @@
  * implementations.
  */
 
-#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY==WINAPI_FAMILY_PC_APP || WINAPI_FAMILY==WINAPI_FAMILY_PHONE_APP) /* Windows Runtime */
-
-struct IUnknown;
-
-typedef IUnknown *EGLNativeDisplayType;
-typedef void     *EGLNativePixmapType;
-typedef IUnknown *EGLNativeWindowType;
-
-#elif defined(_WIN32) || defined(__VC32__) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__) /* Win32 and WinCE */
+#if defined(_WIN32) || defined(__VC32__) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__) /* Win32 and WinCE */
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN 1
 #endif
 #include <windows.h>
 
-typedef HDC     EGLNativeDisplayType;
 typedef HBITMAP EGLNativePixmapType;
+
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PC_APP || WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) /* Windows Store */
+#include <inspectable.h>
+typedef IInspectable* EGLNativeDisplayType;
+typedef IInspectable* EGLNativeWindowType;
+#else
+typedef HDC     EGLNativeDisplayType;
 typedef HWND    EGLNativeWindowType;
+#endif
 
 #elif defined(__WINSCW__) || defined(__SYMBIAN32__)  /* Symbian */
 
diff --git a/src/3rdparty/angle/include/GLSLANG/ShaderLang.h b/src/3rdparty/angle/include/GLSLANG/ShaderLang.h
index b7989f5f7e..647fed6a02 100644
--- a/src/3rdparty/angle/include/GLSLANG/ShaderLang.h
+++ b/src/3rdparty/angle/include/GLSLANG/ShaderLang.h
@@ -27,6 +27,10 @@
 
 #include "KHR/khrplatform.h"
 
+#include <map>
+#include <string>
+#include <vector>
+
 //
 // This is the platform independent interface between an OGL driver
 // and the shading language compiler.
@@ -42,18 +46,17 @@ typedef unsigned int GLenum;
 // Note: make sure to increment ANGLE_SH_VERSION when changing ShaderVars.h
 #include "ShaderVars.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 // Version number for shader translation API.
 // It is incremented every time the API changes.
-#define ANGLE_SH_VERSION 130
+#define ANGLE_SH_VERSION 132
 
 typedef enum {
   SH_GLES2_SPEC = 0x8B40,
   SH_WEBGL_SPEC = 0x8B41,
 
+  SH_GLES3_SPEC = 0x8B86,
+  SH_WEBGL2_SPEC = 0x8B87,
+
   // The CSS Shaders spec is a subset of the WebGL spec.
   //
   // In both CSS vertex and fragment shaders, ANGLE:
@@ -85,31 +88,6 @@ typedef enum {
   SH_HLSL11_OUTPUT = 0x8B48
 } ShShaderOutput;
 
-typedef enum {
-  SH_PRECISION_HIGHP     = 0x5001,
-  SH_PRECISION_MEDIUMP   = 0x5002,
-  SH_PRECISION_LOWP      = 0x5003,
-  SH_PRECISION_UNDEFINED = 0
-} ShPrecisionType;
-
-typedef enum {
-  SH_INFO_LOG_LENGTH                = 0x8B84,
-  SH_OBJECT_CODE_LENGTH             = 0x8B88,  // GL_SHADER_SOURCE_LENGTH
-  SH_ACTIVE_UNIFORMS                = 0x8B86,
-  SH_ACTIVE_UNIFORM_MAX_LENGTH      = 0x8B87,
-  SH_ACTIVE_ATTRIBUTES              = 0x8B89,
-  SH_ACTIVE_ATTRIBUTE_MAX_LENGTH    = 0x8B8A,
-  SH_VARYINGS                       = 0x8BBB,
-  SH_VARYING_MAX_LENGTH             = 0x8BBC,
-  SH_MAPPED_NAME_MAX_LENGTH         = 0x6000,
-  SH_NAME_MAX_LENGTH                = 0x6001,
-  SH_HASHED_NAME_MAX_LENGTH         = 0x6002,
-  SH_HASHED_NAMES_COUNT             = 0x6003,
-  SH_SHADER_VERSION                 = 0x6004,
-  SH_RESOURCES_STRING_LENGTH        = 0x6005,
-  SH_OUTPUT_TYPE                    = 0x6006
-} ShShaderInfo;
-
 // Compile options.
 typedef enum {
   SH_VALIDATE                = 0,
@@ -208,14 +186,14 @@ typedef enum {
 //
 // Driver must call this first, once, before doing any other
 // compiler operations.
-// If the function succeeds, the return value is nonzero, else zero.
+// If the function succeeds, the return value is true, else false.
 //
-COMPILER_EXPORT int ShInitialize();
+COMPILER_EXPORT bool ShInitialize();
 //
 // Driver should call this at shutdown.
-// If the function succeeds, the return value is nonzero, else zero.
+// If the function succeeds, the return value is true, else false.
 //
-COMPILER_EXPORT int ShFinalize();
+COMPILER_EXPORT bool ShFinalize();
 
 // The 64 bits hash function. The first parameter is the input string; the
 // second parameter is the string length.
@@ -246,6 +224,12 @@ typedef struct
     int EXT_frag_depth;
     int EXT_shader_texture_lod;
 
+    // Set to 1 to enable replacing GL_EXT_draw_buffers #extension directives
+    // with GL_NV_draw_buffers in ESSL output. This flag can be used to emulate
+    // EXT_draw_buffers by using it in combination with GLES3.0 glDrawBuffers
+    // function. This applies to Tegra K1 devices.
+    int NV_draw_buffers;
+
     // Set to 1 if highp precision is supported in the fragment language.
     // Default is 0.
     int FragmentPrecisionHigh;
@@ -274,8 +258,10 @@ typedef struct
 
 //
 // Initialize built-in resources with minimum expected values.
+// Parameters:
+// resources: The object to initialize. Will be comparable with memcmp.
 //
-COMPILER_EXPORT void ShInitBuiltInResources(ShBuiltInResources* resources);
+COMPILER_EXPORT void ShInitBuiltInResources(ShBuiltInResources *resources);
 
 //
 // ShHandle held by but opaque to the driver.  It is allocated,
@@ -284,18 +270,15 @@ COMPILER_EXPORT void ShInitBuiltInResources(ShBuiltInResources* resources);
 //
 // If handle creation fails, 0 will be returned.
 //
-typedef void* ShHandle;
+typedef void *ShHandle;
 
 //
-// Returns the a concatenated list of the items in ShBuiltInResources as a string.
+// Returns the a concatenated list of the items in ShBuiltInResources as a
+// null-terminated string.
 // This function must be updated whenever ShBuiltInResources is changed.
 // Parameters:
 // handle: Specifies the handle of the compiler to be used.
-// outStringLen: Specifies the size of the buffer, in number of characters. The size
-//               of the buffer required to store the resources string can be obtained
-//               by calling ShGetInfo with SH_RESOURCES_STRING_LENGTH.
-// outStr: Returns a null-terminated string representing all the built-in resources.
-COMPILER_EXPORT void ShGetBuiltInResourcesString(const ShHandle handle, size_t outStringLen, char *outStr);
+COMPILER_EXPORT const std::string &ShGetBuiltInResourcesString(const ShHandle handle);
 
 //
 // Driver calls these to create and destroy compiler objects.
@@ -313,12 +296,12 @@ COMPILER_EXPORT ShHandle ShConstructCompiler(
     sh::GLenum type,
     ShShaderSpec spec,
     ShShaderOutput output,
-    const ShBuiltInResources* resources);
+    const ShBuiltInResources *resources);
 COMPILER_EXPORT void ShDestruct(ShHandle handle);
 
 //
 // Compiles the given shader source.
-// If the function succeeds, the return value is nonzero, else zero.
+// If the function succeeds, the return value is true, else false.
 // Parameters:
 // handle: Specifies the handle of compiler to be used.
 // shaderStrings: Specifies an array of pointers to null-terminated strings
@@ -340,123 +323,36 @@ COMPILER_EXPORT void ShDestruct(ShHandle handle);
 // SH_VARIABLES: Extracts attributes, uniforms, and varyings.
 //               Can be queried by calling ShGetVariableInfo().
 //
-COMPILER_EXPORT int ShCompile(
+COMPILER_EXPORT bool ShCompile(
     const ShHandle handle,
-    const char* const shaderStrings[],
+    const char * const shaderStrings[],
     size_t numStrings,
-    int compileOptions
-    );
+    int compileOptions);
 
-// Returns a parameter from a compiled shader.
-// Parameters:
-// handle: Specifies the compiler
-// pname: Specifies the parameter to query.
-// The following parameters are defined:
-// SH_INFO_LOG_LENGTH: the number of characters in the information log
-//                     including the null termination character.
-// SH_OBJECT_CODE_LENGTH: the number of characters in the object code
-//                        including the null termination character.
-// SH_ACTIVE_ATTRIBUTES: the number of active attribute variables.
-// SH_ACTIVE_ATTRIBUTE_MAX_LENGTH: the length of the longest active attribute
-//                                 variable name including the null
-//                                 termination character.
-// SH_ACTIVE_UNIFORMS: the number of active uniform variables.
-// SH_ACTIVE_UNIFORM_MAX_LENGTH: the length of the longest active uniform
-//                               variable name including the null
-//                               termination character.
-// SH_VARYINGS: the number of varying variables.
-// SH_VARYING_MAX_LENGTH: the length of the longest varying variable name
-//                        including the null termination character.
-// SH_MAPPED_NAME_MAX_LENGTH: the length of the mapped variable name including
-//                            the null termination character.
-// SH_NAME_MAX_LENGTH: the max length of a user-defined name including the
-//                     null termination character.
-// SH_HASHED_NAME_MAX_LENGTH: the max length of a hashed name including the
-//                            null termination character.
-// SH_HASHED_NAMES_COUNT: the number of hashed names from the latest compile.
-// SH_SHADER_VERSION: the version of the shader language
-// SH_OUTPUT_TYPE: the currently set language output type
-//
-// params: Requested parameter
-COMPILER_EXPORT void ShGetInfo(const ShHandle handle,
-                               ShShaderInfo pname,
-                               size_t* params);
+// Return the version of the shader language.
+COMPILER_EXPORT int ShGetShaderVersion(const ShHandle handle);
 
-// Returns nul-terminated information log for a compiled shader.
+// Return the currently set language output type.
+COMPILER_EXPORT ShShaderOutput ShGetShaderOutputType(
+    const ShHandle handle);
+
+// Returns null-terminated information log for a compiled shader.
 // Parameters:
 // handle: Specifies the compiler
-// infoLog: Specifies an array of characters that is used to return
-//          the information log. It is assumed that infoLog has enough memory
-//          to accomodate the information log. The size of the buffer required
-//          to store the returned information log can be obtained by calling
-//          ShGetInfo with SH_INFO_LOG_LENGTH.
-COMPILER_EXPORT void ShGetInfoLog(const ShHandle handle, char* infoLog);
+COMPILER_EXPORT const std::string &ShGetInfoLog(const ShHandle handle);
 
 // Returns null-terminated object code for a compiled shader.
 // Parameters:
 // handle: Specifies the compiler
-// infoLog: Specifies an array of characters that is used to return
-//          the object code. It is assumed that infoLog has enough memory to
-//          accomodate the object code. The size of the buffer required to
-//          store the returned object code can be obtained by calling
-//          ShGetInfo with SH_OBJECT_CODE_LENGTH.
-COMPILER_EXPORT void ShGetObjectCode(const ShHandle handle, char* objCode);
-
-// Returns information about a shader variable.
-// Parameters:
-// handle: Specifies the compiler
-// variableType: Specifies the variable type; options include
-//               SH_ACTIVE_ATTRIBUTES, SH_ACTIVE_UNIFORMS, SH_VARYINGS.
-// index: Specifies the index of the variable to be queried.
-// length: Returns the number of characters actually written in the string
-//         indicated by name (excluding the null terminator) if a value other
-//         than NULL is passed.
-// size: Returns the size of the variable.
-// type: Returns the data type of the variable.
-// precision: Returns the precision of the variable.
-// staticUse: Returns 1 if the variable is accessed in a statement after
-//            pre-processing, whether or not run-time flow of control will
-//            cause that statement to be executed.
-//            Returns 0 otherwise.
-// name: Returns a null terminated string containing the name of the
-//       variable. It is assumed that name has enough memory to accormodate
-//       the variable name. The size of the buffer required to store the
-//       variable name can be obtained by calling ShGetInfo with
-//       SH_ACTIVE_ATTRIBUTE_MAX_LENGTH, SH_ACTIVE_UNIFORM_MAX_LENGTH,
-//       SH_VARYING_MAX_LENGTH.
-// mappedName: Returns a null terminated string containing the mapped name of
-//             the variable, It is assumed that mappedName has enough memory
-//             (SH_MAPPED_NAME_MAX_LENGTH), or NULL if don't care about the
-//             mapped name. If the name is not mapped, then name and mappedName
-//             are the same.
-COMPILER_EXPORT void ShGetVariableInfo(const ShHandle handle,
-                                       ShShaderInfo variableType,
-                                       int index,
-                                       size_t* length,
-                                       int* size,
-                                       sh::GLenum* type,
-                                       ShPrecisionType* precision,
-                                       int* staticUse,
-                                       char* name,
-                                       char* mappedName);
-
-// Returns information about a name hashing entry from the latest compile.
+COMPILER_EXPORT const std::string &ShGetObjectCode(const ShHandle handle);
+
+// Returns a (original_name, hash) map containing all the user defined
+// names in the shader, including variable names, function names, struct
+// names, and struct field names.
 // Parameters:
 // handle: Specifies the compiler
-// index: Specifies the index of the name hashing entry to be queried.
-// name: Returns a null terminated string containing the user defined name.
-//       It is assumed that name has enough memory to accomodate the name.
-//       The size of the buffer required to store the user defined name can
-//       be obtained by calling ShGetInfo with SH_NAME_MAX_LENGTH.
-// hashedName: Returns a null terminated string containing the hashed name of
-//             the uniform variable, It is assumed that hashedName has enough
-//             memory to accomodate the name. The size of the buffer required
-//             to store the name can be obtained by calling ShGetInfo with
-//             SH_HASHED_NAME_MAX_LENGTH.
-COMPILER_EXPORT void ShGetNameHashingEntry(const ShHandle handle,
-                                           int index,
-                                           char* name,
-                                           char* hashedName);
+COMPILER_EXPORT const std::map<std::string, std::string> *ShGetNameHashingMap(
+    const ShHandle handle);
 
 // Shader variable inspection.
 // Returns a pointer to a list of variables of the designated type.
@@ -476,17 +372,17 @@ typedef struct
     int size;
 } ShVariableInfo;
 
-// Returns 1 if the passed in variables pack in maxVectors following
+// Returns true if the passed in variables pack in maxVectors following
 // the packing rules from the GLSL 1.017 spec, Appendix A, section 7.
-// Returns 0 otherwise. Also look at the SH_ENFORCE_PACKING_RESTRICTIONS
+// Returns false otherwise. Also look at the SH_ENFORCE_PACKING_RESTRICTIONS
 // flag above.
 // Parameters:
 // maxVectors: the available rows of registers.
 // varInfoArray: an array of variable info (types and sizes).
 // varInfoArraySize: the size of the variable array.
-COMPILER_EXPORT int ShCheckVariablesWithinPackingLimits(
+COMPILER_EXPORT bool ShCheckVariablesWithinPackingLimits(
     int maxVectors,
-    ShVariableInfo* varInfoArray,
+    ShVariableInfo *varInfoArray,
     size_t varInfoArraySize);
 
 // Gives the compiler-assigned register for an interface block.
@@ -497,7 +393,7 @@ COMPILER_EXPORT int ShCheckVariablesWithinPackingLimits(
 // interfaceBlockName: Specifies the interface block
 // indexOut: output variable that stores the assigned register
 COMPILER_EXPORT bool ShGetInterfaceBlockRegister(const ShHandle handle,
-                                                 const char *interfaceBlockName,
+                                                 const std::string &interfaceBlockName,
                                                  unsigned int *indexOut);
 
 // Gives the compiler-assigned register for uniforms in the default
@@ -509,11 +405,7 @@ COMPILER_EXPORT bool ShGetInterfaceBlockRegister(const ShHandle handle,
 // interfaceBlockName: Specifies the uniform
 // indexOut: output variable that stores the assigned register
 COMPILER_EXPORT bool ShGetUniformRegister(const ShHandle handle,
-                                          const char *uniformName,
+                                          const std::string &uniformName,
                                           unsigned int *indexOut);
 
-#ifdef __cplusplus
-}
-#endif
-
 #endif // _COMPILER_INTERFACE_INCLUDED_
diff --git a/src/3rdparty/angle/include/GLSLANG/ShaderVars.h b/src/3rdparty/angle/include/GLSLANG/ShaderVars.h
index 9c38647dda..da21c3e76e 100644
--- a/src/3rdparty/angle/include/GLSLANG/ShaderVars.h
+++ b/src/3rdparty/angle/include/GLSLANG/ShaderVars.h
@@ -52,6 +52,21 @@ struct COMPILER_EXPORT ShaderVariable
     unsigned int elementCount() const { return std::max(1u, arraySize); }
     bool isStruct() const { return !fields.empty(); }
 
+    // All of the shader's variables are described using nested data
+    // structures. This is needed in order to disambiguate similar looking
+    // types, such as two structs containing the same fields, but in
+    // different orders. "findInfoByMappedName" provides an easy query for
+    // users to dive into the data structure and fetch the unique variable
+    // instance corresponding to a dereferencing chain of the top-level
+    // variable.
+    // Given a mapped name like 'a[0].b.c[0]', return the ShaderVariable
+    // that defines 'c' in |leafVar|, and the original name 'A[0].B.C[0]'
+    // in |originalName|, based on the assumption that |this| defines 'a'.
+    // If no match is found, return false.
+    bool findInfoByMappedName(const std::string &mappedFullName,
+                              const ShaderVariable **leafVar,
+                              std::string* originalFullName) const;
+
     GLenum type;
     GLenum precision;
     std::string name;
@@ -60,6 +75,16 @@ struct COMPILER_EXPORT ShaderVariable
     bool staticUse;
     std::vector<ShaderVariable> fields;
     std::string structName;
+
+  protected:
+    bool isSameVariableAtLinkTime(const ShaderVariable &other,
+                                  bool matchPrecision) const;
+
+    bool operator==(const ShaderVariable &other) const;
+    bool operator!=(const ShaderVariable &other) const
+    {
+        return !operator==(other);
+    }
 };
 
 struct COMPILER_EXPORT Uniform : public ShaderVariable
@@ -68,6 +93,16 @@ struct COMPILER_EXPORT Uniform : public ShaderVariable
     ~Uniform();
     Uniform(const Uniform &other);
     Uniform &operator=(const Uniform &other);
+    bool operator==(const Uniform &other) const;
+    bool operator!=(const Uniform &other) const
+    {
+        return !operator==(other);
+    }
+
+    // Decide whether two uniforms are the same at shader link time,
+    // assuming one from vertex shader and the other from fragment shader.
+    // See GLSL ES Spec 3.00.3, sec 4.3.5.
+    bool isSameUniformAtLinkTime(const Uniform &other) const;
 };
 
 struct COMPILER_EXPORT Attribute : public ShaderVariable
@@ -76,6 +111,11 @@ struct COMPILER_EXPORT Attribute : public ShaderVariable
     ~Attribute();
     Attribute(const Attribute &other);
     Attribute &operator=(const Attribute &other);
+    bool operator==(const Attribute &other) const;
+    bool operator!=(const Attribute &other) const
+    {
+        return !operator==(other);
+    }
 
     int location;
 };
@@ -86,6 +126,18 @@ struct COMPILER_EXPORT InterfaceBlockField : public ShaderVariable
     ~InterfaceBlockField();
     InterfaceBlockField(const InterfaceBlockField &other);
     InterfaceBlockField &operator=(const InterfaceBlockField &other);
+    bool operator==(const InterfaceBlockField &other) const;
+    bool operator!=(const InterfaceBlockField &other) const
+    {
+        return !operator==(other);
+    }
+
+    // Decide whether two InterfaceBlock fields are the same at shader
+    // link time, assuming one from vertex shader and the other from
+    // fragment shader.
+    // See GLSL ES Spec 3.00.3, sec 4.3.7.
+    bool isSameInterfaceBlockFieldAtLinkTime(
+        const InterfaceBlockField &other) const;
 
     bool isRowMajorLayout;
 };
@@ -94,8 +146,18 @@ struct COMPILER_EXPORT Varying : public ShaderVariable
 {
     Varying();
     ~Varying();
-    Varying(const Varying &other);
+    Varying(const Varying &otherg);
     Varying &operator=(const Varying &other);
+    bool operator==(const Varying &other) const;
+    bool operator!=(const Varying &other) const
+    {
+        return !operator==(other);
+    }
+
+    // Decide whether two varyings are the same at shader link time,
+    // assuming one from vertex shader and the other from fragment shader.
+    // See GLSL ES Spec 3.00.3, sec 4.3.9.
+    bool isSameVaryingAtLinkTime(const Varying &other) const;
 
     InterpolationType interpolation;
     bool isInvariant;
diff --git a/src/3rdparty/angle/include/angle_windowsstore.h b/src/3rdparty/angle/include/angle_windowsstore.h
new file mode 100644
index 0000000000..53ec93e037
--- /dev/null
+++ b/src/3rdparty/angle/include/angle_windowsstore.h
@@ -0,0 +1,37 @@
+//
+// Copyright (c) 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.
+//
+// angle_windowsstore.h:
+
+#ifndef ANGLE_WINDOWSSTORE_H_
+#define ANGLE_WINDOWSSTORE_H_
+
+// The following properties can be set on the CoreApplication to support additional
+// ANGLE configuration options.
+//
+// The Visual Studio sample templates provided with this version of ANGLE have examples
+// of how to set these property values.
+
+//
+// Property: EGLNativeWindowTypeProperty
+// Type: IInspectable
+// Description: Set this property to specify the window type to use for creating a surface.
+//              If this property is missing, surface creation will fail.
+//
+const wchar_t EGLNativeWindowTypeProperty[] = L"EGLNativeWindowTypeProperty";
+
+//
+// Property: EGLRenderSurfaceSizeProperty
+// Type: Size
+// Description: Set this property to specify a preferred size in pixels of the render surface.
+//              The render surface size width and height must be greater than 0.
+//              If this property is set, then the render surface size is fixed.
+//              If this property is missing, a default behavior will be provided.
+//              The default behavior uses the window size if a CoreWindow is specified or
+//              the size of the SwapChainPanel control if one is specified.
+//
+const wchar_t EGLRenderSurfaceSizeProperty[] = L"EGLRenderSurfaceSizeProperty";
+
+#endif // ANGLE_WINDOWSSTORE_H_