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Implement GL_EXT_shader_16bit_storage and GL_EXT_shader_8bit_storage extensions.

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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
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79
glslang/MachineIndependent/glslang.y Normal file → Executable file
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@ -699,6 +699,7 @@ assignment_expression
| unary_expression assignment_operator assignment_expression {
parseContext.arrayObjectCheck($2.loc, $1->getType(), "array assignment");
parseContext.opaqueCheck($2.loc, $1->getType(), "=");
parseContext.storage16BitAssignmentCheck($2.loc, $1->getType(), "=");
parseContext.specializationCheck($2.loc, $1->getType(), "=");
parseContext.lValueErrorCheck($2.loc, "assign", $1);
parseContext.rValueErrorCheck($2.loc, "assign", $3);
@ -1419,7 +1420,7 @@ type_specifier_nonarray
$$.basicType = EbtDouble;
}
| FLOAT16_T {
parseContext.float16Check($1.loc, "float16_t", parseContext.symbolTable.atBuiltInLevel());
parseContext.float16ScalarVectorCheck($1.loc, "float16_t", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtFloat16;
}
@ -1443,22 +1444,22 @@ type_specifier_nonarray
$$.basicType = EbtUint;
}
| INT8_T {
parseContext.explicitInt8Check($1.loc, "8-bit signed integer", parseContext.symbolTable.atBuiltInLevel());
parseContext.int8ScalarVectorCheck($1.loc, "8-bit signed integer", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt8;
}
| UINT8_T {
parseContext.explicitInt8Check($1.loc, "8-bit unsigned integer", parseContext.symbolTable.atBuiltInLevel());
parseContext.int8ScalarVectorCheck($1.loc, "8-bit unsigned integer", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtUint8;
}
| INT16_T {
parseContext.explicitInt16Check($1.loc, "16-bit signed integer", parseContext.symbolTable.atBuiltInLevel());
parseContext.int16ScalarVectorCheck($1.loc, "16-bit signed integer", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt16;
}
| UINT16_T {
parseContext.explicitInt16Check($1.loc, "16-bit unsigned integer", parseContext.symbolTable.atBuiltInLevel());
parseContext.int16ScalarVectorCheck($1.loc, "16-bit unsigned integer", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtUint16;
}
@ -1520,19 +1521,19 @@ type_specifier_nonarray
$$.setVector(4);
}
| F16VEC2 {
parseContext.float16Check($1.loc, "half float vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.float16ScalarVectorCheck($1.loc, "half float vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtFloat16;
$$.setVector(2);
}
| F16VEC3 {
parseContext.float16Check($1.loc, "half float vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.float16ScalarVectorCheck($1.loc, "half float vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtFloat16;
$$.setVector(3);
}
| F16VEC4 {
parseContext.float16Check($1.loc, "half float vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.float16ScalarVectorCheck($1.loc, "half float vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtFloat16;
$$.setVector(4);
@ -1604,40 +1605,40 @@ type_specifier_nonarray
$$.setVector(4);
}
| I8VEC2 {
parseContext.explicitInt8Check($1.loc, "8-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt8;
$$.setVector(2);
parseContext.int8ScalarVectorCheck($1.loc, "8-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt8;
$$.setVector(2);
}
| I8VEC3 {
parseContext.explicitInt8Check($1.loc, "8-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt8;
$$.setVector(3);
parseContext.int8ScalarVectorCheck($1.loc, "8-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt8;
$$.setVector(3);
}
| I8VEC4 {
parseContext.explicitInt8Check($1.loc, "8-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt8;
$$.setVector(4);
parseContext.int8ScalarVectorCheck($1.loc, "8-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt8;
$$.setVector(4);
}
| I16VEC2 {
parseContext.explicitInt16Check($1.loc, "16-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt16;
$$.setVector(2);
parseContext.int16ScalarVectorCheck($1.loc, "16-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt16;
$$.setVector(2);
}
| I16VEC3 {
parseContext.explicitInt16Check($1.loc, "16-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt16;
$$.setVector(3);
parseContext.int16ScalarVectorCheck($1.loc, "16-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt16;
$$.setVector(3);
}
| I16VEC4 {
parseContext.explicitInt16Check($1.loc, "16-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt16;
$$.setVector(4);
parseContext.int16ScalarVectorCheck($1.loc, "16-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt16;
$$.setVector(4);
}
| I32VEC2 {
parseContext.explicitInt32Check($1.loc, "32-bit signed integer vector", parseContext.symbolTable.atBuiltInLevel());
@ -1694,37 +1695,37 @@ type_specifier_nonarray
$$.setVector(4);
}
| U8VEC2 {
parseContext.explicitInt8Check($1.loc, "8-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.int8ScalarVectorCheck($1.loc, "8-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtUint8;
$$.setVector(2);
}
| U8VEC3 {
parseContext.explicitInt8Check($1.loc, "8-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.int8ScalarVectorCheck($1.loc, "8-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtInt8;
$$.basicType = EbtUint8;
$$.setVector(3);
}
| U8VEC4 {
parseContext.explicitInt8Check($1.loc, "8-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.int8ScalarVectorCheck($1.loc, "8-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtUint8;
$$.setVector(4);
}
| U16VEC2 {
parseContext.explicitInt16Check($1.loc, "16-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.int16ScalarVectorCheck($1.loc, "16-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtUint16;
$$.setVector(2);
}
| U16VEC3 {
parseContext.explicitInt16Check($1.loc, "16-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.int16ScalarVectorCheck($1.loc, "16-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtUint16;
$$.setVector(3);
}
| U16VEC4 {
parseContext.explicitInt16Check($1.loc, "16-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
parseContext.int16ScalarVectorCheck($1.loc, "16-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel());
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtUint16;
$$.setVector(4);