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Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/BaseTypes.h')
| -rw-r--r-- | src/3rdparty/angle/src/compiler/translator/BaseTypes.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/BaseTypes.h b/src/3rdparty/angle/src/compiler/translator/BaseTypes.h new file mode 100644 index 0000000000..7bdaf14983 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/translator/BaseTypes.h @@ -0,0 +1,149 @@ +// +// 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, + EbtSamplerExternalOES, // Only valid if OES_EGL_image_external exists. + EbtSampler2DRect, // Only valid if GL_ARB_texture_rectangle exists. + EbtGuardSamplerEnd, // non type: see implementation of IsSampler() + EbtStruct, + EbtAddress, // should be deprecated?? + EbtInvariant // used as a type when qualifying a previously declared variable as being invariant +}; + +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 EbtSamplerExternalOES: return "samplerExternalOES"; break; + case EbtSampler2DRect: return "sampler2DRect"; 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 + EvqInternal, // For internal use, not visible to the user + 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 + + // 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, + EvqFragDepth, + + // 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 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; + case EvqFragDepth: return "FragDepth"; break; + default: return "unknown qualifier"; + } +} + +#endif // _BASICTYPES_INCLUDED_ |