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Implement extension GL_AMD_gpu_shader_int16

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- Add int16 types (int16_t, uint16_t, i16vec, u16vec).
- Add int16 support to GLSL operators.
- Add int16 type conversions (to int16, from int16).
- Add int16 built-in functions.
This commit is contained in:
Rex Xu 2017-03-24 13:41:14 +08:00
parent 4d5bcd3162
commit cabbb788b4
28 changed files with 8560 additions and 5521 deletions
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111
glslang/MachineIndependent/preprocessor/PpScanner.cpp
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@ -334,6 +334,9 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
int ii = 0;
unsigned long long ival = 0;
bool enableInt64 = pp->parseContext.version >= 450 && pp->parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_int64);
#ifdef AMD_EXTENSIONS
bool enableInt16 = pp->parseContext.version >= 450 && pp->parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_int16);
#endif
bool acceptHalf = pp->parseContext.intermediate.getSource() == EShSourceHlsl;
#ifdef AMD_EXTENSIONS
if (pp->parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float))
@ -406,6 +409,9 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
bool isUnsigned = false;
bool isInt64 = false;
#ifdef AMD_EXTENSIONS
bool isInt16 = false;
#endif
ppToken->name[len++] = (char)ch;
ch = getch();
if ((ch >= '0' && ch <= '9') ||
@ -414,7 +420,7 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
ival = 0;
do {
if (ival <= 0x0fffffff || (enableInt64 && ival <= 0x0fffffffffffffffull)) {
if (ival <= 0x0fffffffu || (enableInt64 && ival <= 0x0fffffffffffffffull)) {
ppToken->name[len++] = (char)ch;
if (ch >= '0' && ch <= '9') {
ii = ch - '0';
@ -453,11 +459,28 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
} else
ungetch();
}
}
else if (enableInt64 && (ch == 'l' || ch == 'L')) {
#ifdef AMD_EXTENSIONS
if (enableInt16) {
int nextCh = getch();
if ((ch == 'u' && nextCh == 's') || (ch == 'U' && nextCh == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
}
#endif
} else if (enableInt64 && (ch == 'l' || ch == 'L')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt64 = true;
#ifdef AMD_EXTENSIONS
} else if (enableInt16 && (ch == 's' || ch == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt16 = true;
#endif
} else
ungetch();
ppToken->name[len] = '\0';
@ -465,6 +488,11 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
if (isInt64) {
ppToken->i64val = ival;
return isUnsigned ? PpAtomConstUint64 : PpAtomConstInt64;
#ifdef AMD_EXTENSIONS
} else if (isInt16) {
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint16 : PpAtomConstInt16;
#endif
} else {
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint : PpAtomConstInt;
@ -474,6 +502,9 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
bool isUnsigned = false;
bool isInt64 = false;
#ifdef AMD_EXTENSIONS
bool isInt16 = false;
#endif
bool octalOverflow = false;
bool nonOctal = false;
ival = 0;
@ -486,7 +517,7 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
pp->parseContext.ppError(ppToken->loc, "numeric literal too long", "", "");
AlreadyComplained = 1;
}
if (ival <= 0x1fffffff || (enableInt64 && ival <= 0x1fffffffffffffffull)) {
if (ival <= 0x1fffffffu || (enableInt64 && ival <= 0x1fffffffffffffffull)) {
ii = ch - '0';
ival = (ival << 3) | ii;
} else
@ -528,11 +559,28 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
} else
ungetch();
}
}
else if (enableInt64 && (ch == 'l' || ch == 'L')) {
#ifdef AMD_EXTENSIONS
if (enableInt16) {
int nextCh = getch();
if ((ch == 'u' && nextCh == 's') || (ch == 'U' && nextCh == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
}
#endif
} else if (enableInt64 && (ch == 'l' || ch == 'L')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt64 = true;
#ifdef AMD_EXTENSIONS
} else if (enableInt16 && (ch == 's' || ch == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt16 = true;
#endif
} else
ungetch();
ppToken->name[len] = '\0';
@ -543,6 +591,11 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
if (isInt64) {
ppToken->i64val = ival;
return isUnsigned ? PpAtomConstUint64 : PpAtomConstInt64;
#ifdef AMD_EXTENSIONS
} else if (isInt16) {
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint16 : PpAtomConstInt16;
#endif
} else {
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint : PpAtomConstInt;
@ -569,6 +622,9 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
int numericLen = len;
bool isUnsigned = false;
bool isInt64 = false;
#ifdef AMD_EXTENSIONS
bool isInt16 = false;
#endif
if (ch == 'u' || ch == 'U') {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
@ -583,10 +639,28 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
} else
ungetch();
}
#ifdef AMD_EXTENSIONS
if (enableInt16) {
int nextCh = getch();
if ((ch == 'u' && nextCh == 's') || (ch == 'U' && nextCh == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
}
#endif
} else if (enableInt64 && (ch == 'l' || ch == 'L')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt64 = true;
#ifdef AMD_EXTENSIONS
} else if (enableInt16 && (ch == 's' || ch == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt16 = true;
#endif
} else
ungetch();
@ -596,10 +670,22 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
const unsigned remainderMaxInt = 0xFFFFFFFFu - 10 * oneTenthMaxInt;
const unsigned long long oneTenthMaxInt64 = 0xFFFFFFFFFFFFFFFFull / 10;
const unsigned long long remainderMaxInt64 = 0xFFFFFFFFFFFFFFFFull - 10 * oneTenthMaxInt64;
#ifdef AMD_EXTENSIONS
const unsigned short oneTenthMaxInt16 = 0xFFFFu / 10;
const unsigned short remainderMaxInt16 = 0xFFFFu - 10 * oneTenthMaxInt16;
#endif
for (int i = 0; i < numericLen; i++) {
ch = ppToken->name[i] - '0';
if ((enableInt64 == false && ((ival > oneTenthMaxInt) || (ival == oneTenthMaxInt && (unsigned)ch > remainderMaxInt))) ||
(enableInt64 && ((ival > oneTenthMaxInt64) || (ival == oneTenthMaxInt64 && (unsigned long long)ch > remainderMaxInt64)))) {
bool overflow = false;
if (isInt64)
overflow = (ival > oneTenthMaxInt64 || (ival == oneTenthMaxInt64 && (unsigned long long)ch > remainderMaxInt64));
#ifdef AMD_EXTENSIONS
else if (isInt16)
overflow = (ival > oneTenthMaxInt16 || (ival == oneTenthMaxInt16 && (unsigned short)ch > remainderMaxInt16));
#endif
else
overflow = (ival > oneTenthMaxInt || (ival == oneTenthMaxInt && (unsigned)ch > remainderMaxInt));
if (overflow) {
pp->parseContext.ppError(ppToken->loc, "numeric literal too big", "", "");
ival = 0xFFFFFFFFFFFFFFFFull;
break;
@ -610,6 +696,11 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
if (isInt64) {
ppToken->i64val = ival;
return isUnsigned ? PpAtomConstUint64 : PpAtomConstInt64;
#ifdef AMD_EXTENSIONS
} else if (isInt16) {
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint16 : PpAtomConstInt16;
#endif
} else {
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint : PpAtomConstInt;
@ -859,6 +950,10 @@ int TPpContext::tokenize(TPpToken& ppToken)
case PpAtomConstFloat:
case PpAtomConstInt64:
case PpAtomConstUint64:
#ifdef AMD_EXTENSIONS
case PpAtomConstInt16:
case PpAtomConstUint16:
#endif
case PpAtomConstDouble:
#ifdef AMD_EXTENSIONS
case PpAtomConstFloat16: