BeeEngine/glslang-zig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Implement GL_EXT_shader_16bit_storage and GL_EXT_shader_8bit_storage extensions.

Browse source 
These introduce limited support for 8/16-bit types such that they can only be accessed in buffer memory and converted to/from 32-bit types.

Contributed from Khronos-internal work.
This commit is contained in:
John Kessenich 2018-07-03 13:19:51 -06:00
parent eefab240f7
commit 312dcfb070
43 changed files with 6179 additions and 2765 deletions
Download patch file Download diff file Expand all files Collapse all files

78
glslang/MachineIndependent/Intermediate.cpp Normal file → Executable file
View file

@ -881,6 +881,9 @@ TIntermTyped* TIntermediate::addConversion(TOperator op, const TType& type, TInt
// like vector and matrix sizes.
TBasicType promoteTo;
// GL_EXT_shader_16bit_storage can't do OpConstantComposite with
// 16-bit types, so disable promotion for those types.
bool canPromoteConstant = true;
switch (op) {
//
@ -897,18 +900,28 @@ TIntermTyped* TIntermediate::addConversion(TOperator op, const TType& type, TInt
break;
case EOpConstructFloat16:
promoteTo = EbtFloat16;
canPromoteConstant = extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types) ||
extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types_float16);
break;
case EOpConstructInt8:
promoteTo = EbtInt8;
canPromoteConstant = extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types) ||
extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types_int8);
break;
case EOpConstructUint8:
promoteTo = EbtUint8;
canPromoteConstant = extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types) ||
extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types_int8);
break;
case EOpConstructInt16:
promoteTo = EbtInt16;
canPromoteConstant = extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types) ||
extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types_int16);
break;
case EOpConstructUint16:
promoteTo = EbtUint16;
canPromoteConstant = extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types) ||
extensionRequested(E_GL_KHX_shader_explicit_arithmetic_types_int16);
break;
case EOpConstructInt:
promoteTo = EbtInt;
@ -999,7 +1012,7 @@ TIntermTyped* TIntermediate::addConversion(TOperator op, const TType& type, TInt
return nullptr;
}
if (node->getAsConstantUnion())
if (canPromoteConstant && node->getAsConstantUnion())
return promoteConstantUnion(promoteTo, node->getAsConstantUnion());
//
@ -1468,16 +1481,16 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
case EbtUint:
case EbtInt64:
case EbtUint64:
case EbtFloat:
case EbtDouble:
return true;
#ifdef AMD_EXTENSIONS
case EbtInt16:
case EbtUint16:
return extensionRequested(E_GL_AMD_gpu_shader_int16);
case EbtFloat16:
return extensionRequested(E_GL_AMD_gpu_shader_half_float);
#endif
case EbtFloat:
case EbtDouble:
#ifdef AMD_EXTENSIONS
case EbtFloat16:
#endif
return true;
default:
return false;
}
@ -1485,17 +1498,21 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
switch (from) {
case EbtInt:
case EbtUint:
#ifdef AMD_EXTENSIONS
case EbtInt16:
case EbtUint16:
#endif
case EbtFloat:
#ifdef AMD_EXTENSIONS
case EbtFloat16:
#endif
return true;
case EbtBool:
return (source == EShSourceHlsl);
#ifdef AMD_EXTENSIONS
case EbtInt16:
case EbtUint16:
return extensionRequested(E_GL_AMD_gpu_shader_int16);
#endif
case EbtFloat16:
return
#ifdef AMD_EXTENSIONS
extensionRequested(E_GL_AMD_gpu_shader_half_float) ||
#endif
(source == EShSourceHlsl);
default:
return false;
}
@ -1504,25 +1521,27 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
case EbtInt:
return version >= 400 || (source == EShSourceHlsl);
case EbtUint:
#ifdef AMD_EXTENSIONS
case EbtInt16:
case EbtUint16:
#endif
return true;
case EbtBool:
return (source == EShSourceHlsl);
#ifdef AMD_EXTENSIONS
case EbtInt16:
case EbtUint16:
return extensionRequested(E_GL_AMD_gpu_shader_int16);
#endif
default:
return false;
}
case EbtInt:
switch (from) {
case EbtInt:
#ifdef AMD_EXTENSIONS
case EbtInt16:
#endif
return true;
case EbtBool:
return (source == EShSourceHlsl);
#ifdef AMD_EXTENSIONS
case EbtInt16:
return extensionRequested(E_GL_AMD_gpu_shader_int16);
#endif
default:
return false;
}
@ -1532,11 +1551,12 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
case EbtUint:
case EbtInt64:
case EbtUint64:
return true;
#ifdef AMD_EXTENSIONS
case EbtInt16:
case EbtUint16:
return extensionRequested(E_GL_AMD_gpu_shader_int16);
#endif
return true;
default:
return false;
}
@ -1544,32 +1564,36 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
switch (from) {
case EbtInt:
case EbtInt64:
return true;
#ifdef AMD_EXTENSIONS
case EbtInt16:
return extensionRequested(E_GL_AMD_gpu_shader_int16);
#endif
return true;
default:
return false;
}
#ifdef AMD_EXTENSIONS
case EbtFloat16:
switch (from) {
#ifdef AMD_EXTENSIONS
case EbtInt16:
case EbtUint16:
return extensionRequested(E_GL_AMD_gpu_shader_int16);
case EbtFloat16:
return true;
return extensionRequested(E_GL_AMD_gpu_shader_half_float);
#endif
default:
return false;
}
case EbtUint16:
switch (from) {
#ifdef AMD_EXTENSIONS
case EbtInt16:
case EbtUint16:
return true;
return extensionRequested(E_GL_AMD_gpu_shader_int16);
#endif
default:
return false;
}
#endif
default:
return false;
}