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Parser: Implement extension GL_AMD_gpu_shader_half_float.

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- Add built-in types: float16_t, f16vec, f16mat.
- Add support of half float constant: hf, HF.
- Extend built-in floating-point operators: +, -, *, /, ++, --, +=, -=,
  *=, /=, ==, !=, >=, <=, >, <.
- Add support of type conversions: float16_t -> XXX, XXX -> float16_t.
- Add new built-in functions.
This commit is contained in:
Rex Xu 2016-07-29 16:00:05 +08:00
parent b1672fa0de
commit c9e3c3c941
35 changed files with 9765 additions and 4370 deletions
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52
glslang/MachineIndependent/Scan.cpp
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@ -463,6 +463,25 @@ void TScanContext::fillInKeywordMap()
(*KeywordMap)["u64vec3"] = U64VEC3;
(*KeywordMap)["u64vec4"] = U64VEC4;
#ifdef AMD_EXTENSIONS
(*KeywordMap)["float16_t"] = FLOAT16_T;
(*KeywordMap)["f16vec2"] = F16VEC2;
(*KeywordMap)["f16vec3"] = F16VEC3;
(*KeywordMap)["f16vec4"] = F16VEC4;
(*KeywordMap)["f16mat2"] = F16MAT2;
(*KeywordMap)["f16mat3"] = F16MAT3;
(*KeywordMap)["f16mat4"] = F16MAT4;
(*KeywordMap)["f16mat2x2"] = F16MAT2X2;
(*KeywordMap)["f16mat2x3"] = F16MAT2X3;
(*KeywordMap)["f16mat2x4"] = F16MAT2X4;
(*KeywordMap)["f16mat3x2"] = F16MAT3X2;
(*KeywordMap)["f16mat3x3"] = F16MAT3X3;
(*KeywordMap)["f16mat3x4"] = F16MAT3X4;
(*KeywordMap)["f16mat4x2"] = F16MAT4X2;
(*KeywordMap)["f16mat4x3"] = F16MAT4X3;
(*KeywordMap)["f16mat4x4"] = F16MAT4X4;
#endif
(*KeywordMap)["sampler2D"] = SAMPLER2D;
(*KeywordMap)["samplerCube"] = SAMPLERCUBE;
(*KeywordMap)["samplerCubeArray"] = SAMPLERCUBEARRAY;
@ -687,6 +706,9 @@ int TScanContext::tokenize(TPpContext* pp, TParserToken& token)
case PpAtomConstUint64: parserToken->sType.lex.i64 = ppToken.i64val; return UINT64CONSTANT;
case PpAtomConstFloat: parserToken->sType.lex.d = ppToken.dval; return FLOATCONSTANT;
case PpAtomConstDouble: parserToken->sType.lex.d = ppToken.dval; return DOUBLECONSTANT;
#ifdef AMD_EXTENSIONS
case PpAtomConstFloat16: parserToken->sType.lex.d = ppToken.dval; return FLOAT16CONSTANT;
#endif
case PpAtomIdentifier:
{
int token = tokenizeIdentifier();
@ -938,10 +960,38 @@ int TScanContext::tokenizeIdentifier()
case U64VEC2:
case U64VEC3:
case U64VEC4:
if (parseContext.profile != EEsProfile && parseContext.version >= 450)
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
(parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_int64) &&
parseContext.profile != EEsProfile && parseContext.version >= 450))
return keyword;
return identifierOrType();
#ifdef AMD_EXTENSIONS
case FLOAT16_T:
case F16VEC2:
case F16VEC3:
case F16VEC4:
case F16MAT2:
case F16MAT3:
case F16MAT4:
case F16MAT2X2:
case F16MAT2X3:
case F16MAT2X4:
case F16MAT3X2:
case F16MAT3X3:
case F16MAT3X4:
case F16MAT4X2:
case F16MAT4X3:
case F16MAT4X4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
(parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) &&
parseContext.profile != EEsProfile && parseContext.version >= 450))
return keyword;
return identifierOrType();
#endif
case SAMPLERCUBEARRAY:
case SAMPLERCUBEARRAYSHADOW:
case ISAMPLERCUBEARRAY: