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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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9
glslang/MachineIndependent/preprocessor/PpTokens.cpp
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@ -144,6 +144,9 @@ void TPpContext::RecordToken(TokenStream *pTok, int token, TPpToken* ppToken)
case PpAtomConstUint64:
case PpAtomConstFloat:
case PpAtomConstDouble:
#ifdef AMD_EXTENSIONS
case PpAtomConstFloat16:
#endif
str = ppToken->name;
while (*str) {
lAddByte(pTok, (unsigned char) *str);
@ -195,6 +198,9 @@ int TPpContext::ReadToken(TokenStream *pTok, TPpToken *ppToken)
case PpAtomIdentifier:
case PpAtomConstFloat:
case PpAtomConstDouble:
#ifdef AMD_EXTENSIONS
case PpAtomConstFloat16:
#endif
case PpAtomConstInt:
case PpAtomConstUint:
case PpAtomConstInt64:
@ -221,6 +227,9 @@ int TPpContext::ReadToken(TokenStream *pTok, TPpToken *ppToken)
break;
case PpAtomConstFloat:
case PpAtomConstDouble:
#ifdef AMD_EXTENSIONS
case PpAtomConstFloat16:
#endif
ppToken->dval = atof(ppToken->name);
break;
case PpAtomConstInt: