Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 147 insertions, 0 deletions

diff --git a/Source/ThirdParty/ANGLE/src/compiler/BaseTypes.h b/Source/ThirdParty/ANGLE/src/compiler/BaseTypes.h
new file mode 100644
index 0000000..9f4a860
--- /dev/null
+++ b/Source/ThirdParty/ANGLE/src/compiler/BaseTypes.h
@@ -0,0 +1,147 @@
+//
+// 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.
+//
+
+#ifndef _BASICTYPES_INCLUDED_
+#define _BASICTYPES_INCLUDED_
+
+//
+// Precision qualifiers
+//
+enum TPrecision
+{
+    // These need to be kept sorted
+    EbpUndefined,
+    EbpLow,
+    EbpMedium,
+    EbpHigh,
+};
+
+inline const char* getPrecisionString(TPrecision p)
+{
+    switch(p)
+    {
+    case EbpHigh:		return "highp";		break;
+    case EbpMedium:		return "mediump";	break;
+    case EbpLow:		return "lowp";		break;
+    default:			return "mediump";   break;   // Safest fallback
+    }
+}
+
+//
+// Basic type.  Arrays, vectors, etc., are orthogonal to this.
+//
+enum TBasicType
+{
+    EbtVoid,
+    EbtFloat,
+    EbtInt,
+    EbtBool,
+    EbtGuardSamplerBegin,  // non type:  see implementation of IsSampler()
+    EbtSampler2D,
+    EbtSamplerCube,
+    EbtGuardSamplerEnd,    // non type:  see implementation of IsSampler()
+    EbtStruct,
+    EbtAddress,            // should be deprecated??
+};
+
+inline const char* getBasicString(TBasicType t)
+{
+    switch (t)
+    {
+    case EbtVoid:              return "void";              break;
+    case EbtFloat:             return "float";             break;
+    case EbtInt:               return "int";               break;
+    case EbtBool:              return "bool";              break;
+    case EbtSampler2D:         return "sampler2D";         break;
+    case EbtSamplerCube:       return "samplerCube";       break;
+    case EbtStruct:            return "structure";         break;
+    default:                   return "unknown type";
+    }
+}
+
+inline bool IsSampler(TBasicType type)
+{
+    return type > EbtGuardSamplerBegin && type < EbtGuardSamplerEnd;
+}
+
+//
+// Qualifiers and built-ins.  These are mainly used to see what can be read
+// or written, and by the machine dependent translator to know which registers
+// to allocate variables in.  Since built-ins tend to go to different registers
+// than varying or uniform, it makes sense they are peers, not sub-classes.
+//
+enum TQualifier
+{
+    EvqTemporary,     // For temporaries (within a function), read/write
+    EvqGlobal,        // For globals read/write
+    EvqConst,         // User defined constants and non-output parameters in functions
+    EvqAttribute,     // Readonly
+    EvqVaryingIn,     // readonly, fragment shaders only
+    EvqVaryingOut,    // vertex shaders only  read/write
+    EvqInvariantVaryingIn,     // readonly, fragment shaders only
+    EvqInvariantVaryingOut,    // vertex shaders only  read/write
+    EvqUniform,       // Readonly, vertex and fragment
+
+    // pack/unpack input and output
+    EvqInput,
+    EvqOutput,
+
+    // parameters
+    EvqIn,
+    EvqOut,
+    EvqInOut,
+    EvqConstReadOnly,
+
+    // built-ins written by vertex shader
+    EvqPosition,
+    EvqPointSize,
+
+    // built-ins read by fragment shader
+    EvqFragCoord,
+    EvqFrontFacing,
+    EvqPointCoord,
+
+    // built-ins written by fragment shader
+    EvqFragColor,
+    EvqFragData,
+
+    // end of list
+    EvqLast,
+};
+
+//
+// This is just for debug print out, carried along with the definitions above.
+//
+inline const char* getQualifierString(TQualifier q)
+{
+    switch(q)
+    {
+    case EvqTemporary:      return "Temporary";      break;
+    case EvqGlobal:         return "Global";         break;
+    case EvqConst:          return "const";          break;
+    case EvqConstReadOnly:  return "const";          break;
+    case EvqAttribute:      return "attribute";      break;
+    case EvqVaryingIn:      return "varying";        break;
+    case EvqVaryingOut:     return "varying";        break;
+    case EvqInvariantVaryingIn: return "invariant varying";	break;
+    case EvqInvariantVaryingOut:return "invariant varying";	break;
+    case EvqUniform:        return "uniform";        break;
+    case EvqIn:             return "in";             break;
+    case EvqOut:            return "out";            break;
+    case EvqInOut:          return "inout";          break;
+    case EvqInput:          return "input";          break;
+    case EvqOutput:         return "output";         break;
+    case EvqPosition:       return "Position";       break;
+    case EvqPointSize:      return "PointSize";      break;
+    case EvqFragCoord:      return "FragCoord";      break;
+    case EvqFrontFacing:    return "FrontFacing";    break;
+    case EvqFragColor:      return "FragColor";      break;
+    case EvqFragData:       return "FragData";      break;
+    default:                return "unknown qualifier";
+    }
+}
+
+#endif // _BASICTYPES_INCLUDED_