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

Track separate precision defaults for each kind of sampler, give initial defaults as per spec. Also make fragment floats have no default. Modify/add tests to adapt to these changes.

Browse source 
git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22066 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2013-06-19 05:41:25 +00:00
parent c59d0cd9e6
commit 41a36bbb2f
13 changed files with 91 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

46
glslang/MachineIndependent/ParseHelper.cpp
View file

@ -51,7 +51,16 @@ TParseContext::TParseContext(TSymbolTable& symt, TIntermediate& interm, int v, E
for (int type = 0; type < EbtNumTypes; ++type)
defaultPrecision[type] = EpqNone;
for (int type = 0; type < maxSamplerIndex; ++type)
defaultSamplerPrecision[type] = EpqNone;
if (profile == EEsProfile) {
TSampler sampler;
sampler.set(EbtFloat, Esd2D);
defaultSamplerPrecision[computeSamplerTypeIndex(sampler)] = EpqLow;
sampler.set(EbtFloat, EsdCube);
defaultSamplerPrecision[computeSamplerTypeIndex(sampler)] = EpqLow;
switch (language) {
case EShLangVertex:
defaultPrecision[EbtInt] = EpqHigh;
@ -809,7 +818,13 @@ void TParseContext::setDefaultPrecision(int line, TPublicType& publicType, TPrec
{
TBasicType basicType = publicType.basicType;
if (basicType == EbtSampler || basicType == EbtInt || basicType == EbtFloat) {
if (basicType == EbtSampler) {
defaultSamplerPrecision[computeSamplerTypeIndex(publicType.sampler)] = qualifier;
return; // all is well
}
if (basicType == EbtInt || basicType == EbtFloat) {
if (publicType.isScalar()) {
defaultPrecision[basicType] = qualifier;
if (basicType == EbtInt)
@ -822,6 +837,35 @@ void TParseContext::setDefaultPrecision(int line, TPublicType& publicType, TPrec
error(line, "cannot apply precision statement to this type; use 'float', 'int' or a sampler type", TType::getBasicString(basicType), "");
}
// used to flatten the sampler type space into a single dimension
// correlates with the declaration of defaultSamplerPrecision[]
int TParseContext::computeSamplerTypeIndex(TSampler& sampler)
{
int arrayIndex = sampler.arrayed ? 1 : 0;
int shadowIndex = sampler.shadow ? 1 : 0;
return EsdNumDims * (EbtNumTypes * (2 * arrayIndex + shadowIndex) + sampler.type) + sampler.dim;
}
TPrecisionQualifier TParseContext::getDefaultPrecision(TPublicType& publicType)
{
if (publicType.basicType == EbtSampler)
return defaultSamplerPrecision[computeSamplerTypeIndex(publicType.sampler)];
else
return defaultPrecision[publicType.basicType];
}
void TParseContext::precisionQualifierCheck(int line, TPublicType& publicType)
{
if (profile != EEsProfile)
return;
if (publicType.basicType == EbtFloat || publicType.basicType == EbtUint || publicType.basicType == EbtInt || publicType.basicType == EbtSampler) {
if (publicType.qualifier.precision == EpqNone)
error(line, "type requires declaration of default precision qualifier", TType::getBasicString(publicType.basicType), "");
}
}
void TParseContext::parameterSamplerCheck(int line, TStorageQualifier qualifier, const TType& type)
{
if ((qualifier == EvqOut || qualifier == EvqInOut) && type.getBasicType() != EbtStruct && type.getBasicType() == EbtSampler)