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Display source variables mapped to OpUndef as <undefined value>

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* Undefined values are still 0xccccccccc, since that value can propagate through
  operations. But source variables mapped directly to an OpUndef are displayed
  in a more semantically clear way.
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baldurk committed 2026-01-19 13:34:58 +00:00
1 parent d32454e8ff
commit 9bef60d6c3
4 files changed
+82 -25
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qrenderdoc/Windows/ShaderViewer.cpp
+52 -17
View File
@@ -3415,7 +3415,8 @@ QString ShaderViewer::getRegNames(const RDTreeWidgetItem *item, uint32_t swizzle
}
const RDTreeWidgetItem *ShaderViewer::evaluateVar(const RDTreeWidgetItem *item, uint32_t swizzle,
ShaderVariable *var)
ShaderVariable *var,
SourceVariableMapping *mappingPtr)
{
VariableTag tag = item->tag().value<VariableTag>();
@@ -3528,13 +3529,16 @@ const RDTreeWidgetItem *ShaderViewer::evaluateVar(const RDTreeWidgetItem *item,
for(int i = 0; i < item->childCount(); i++)
{
ret.members.push_back(ShaderVariable());
if(!evaluateVar(item->child(i), ~0U, &ret.members.back()))
if(!evaluateVar(item->child(i), ~0U, &ret.members.back(), NULL))
return NULL;
}
return item;
}
if(mappingPtr)
*mappingPtr = mapping;
if(mapping.variables.empty())
return NULL;
@@ -3575,6 +3579,9 @@ const RDTreeWidgetItem *ShaderViewer::evaluateVar(const RDTreeWidgetItem *item,
}
}
if(mappingPtr)
*mappingPtr = mapping;
ShaderVariable &ret = *var;
ret.name = mapping.name;
ret.flags |= ShaderVariableFlags::RowMajorMatrix;
@@ -3649,14 +3656,15 @@ const RDTreeWidgetItem *ShaderViewer::evaluateVar(const RDTreeWidgetItem *item,
}
const RDTreeWidgetItem *ShaderViewer::getVarFromPath(const rdcstr &path, const RDTreeWidgetItem *root,
ShaderVariable *var, uint32_t *swizzlePtr)
ShaderVariable *var, uint32_t *swizzlePtr,
SourceVariableMapping *mappingPtr)
{
VariableTag tag = root->tag().value<VariableTag>();
// if the path is an exact match, return the evaluation directly
if(tag.absoluteRefPath == path)
{
return evaluateVar(root, ~0U, var);
return evaluateVar(root, ~0U, var, mappingPtr);
}
for(int i = 0; i < root->childCount(); i++)
@@ -3672,7 +3680,7 @@ const RDTreeWidgetItem *ShaderViewer::getVarFromPath(const rdcstr &path, const R
// if the path is an exact match, return the evaluation directly
if(tag.absoluteRefPath == path)
{
return evaluateVar(child, ~0U, var);
return evaluateVar(child, ~0U, var, mappingPtr);
}
// after the common prefix, if the next value is . or [ then this is the next child, so recurse.
@@ -3684,7 +3692,7 @@ const RDTreeWidgetItem *ShaderViewer::getVarFromPath(const rdcstr &path, const R
if(common == tag.absoluteRefPath &&
(path[tag.absoluteRefPath.size()] == '.' || path[tag.absoluteRefPath.size()] == '['))
{
return getVarFromPath(path, child, var, swizzlePtr);
return getVarFromPath(path, child, var, swizzlePtr, mappingPtr);
}
}
@@ -3726,7 +3734,7 @@ const RDTreeWidgetItem *ShaderViewer::getVarFromPath(const rdcstr &path, const R
if(swizzlePtr)
*swizzlePtr = swizzleMask;
return evaluateVar(root, swizzleMask, var);
return evaluateVar(root, swizzleMask, var, mappingPtr);
}
}
@@ -3734,7 +3742,8 @@ const RDTreeWidgetItem *ShaderViewer::getVarFromPath(const rdcstr &path, const R
}
const RDTreeWidgetItem *ShaderViewer::getVarFromPath(const rdcstr &path, ShaderVariable *var,
uint32_t *swizzle)
uint32_t *swizzle,
SourceVariableMapping *mapping)
{
if(!m_Trace || m_States.empty())
return NULL;
@@ -3765,7 +3774,7 @@ const RDTreeWidgetItem *ShaderViewer::getVarFromPath(const rdcstr &path, ShaderV
if(item->text(0) == root)
{
const RDTreeWidgetItem *ret = getVarFromPath(path, item, var, swizzle);
const RDTreeWidgetItem *ret = getVarFromPath(path, item, var, swizzle, mapping);
if(ret)
return ret;
}
@@ -3781,7 +3790,7 @@ const RDTreeWidgetItem *ShaderViewer::getVarFromPath(const rdcstr &path, ShaderV
VariableTag tag = item->tag().value<VariableTag>();
const RDTreeWidgetItem *ret =
getVarFromPath(tag.absoluteRefPath + "." + path, child, var, swizzle);
getVarFromPath(tag.absoluteRefPath + "." + path, child, var, swizzle, mapping);
if(ret)
return ret;
}
@@ -4515,6 +4524,7 @@ void ShaderViewer::markWatchStale(RDTreeWidgetItem *item)
bool ShaderViewer::updateWatchVariable(RDTreeWidgetItem *watchItem, const RDTreeWidgetItem *varItem,
const rdcstr &path, uint32_t swizzle,
const SourceVariableMapping &mapping,
const ShaderVariable &var, QChar regcast)
{
if(!var.members.empty())
@@ -4577,7 +4587,7 @@ bool ShaderViewer::updateWatchVariable(RDTreeWidgetItem *watchItem, const RDTree
rdcstr sep = var.members[i].name[0] == '[' ? "" : ".";
updateWatchVariable(watchItem->child(idx), varItem->child(i),
path + sep + var.members[i].name, ~0U, var.members[i], regcast);
path + sep + var.members[i].name, ~0U, mapping, var.members[i], regcast);
}
// any children that weren't marked as valid are now stale
@@ -4644,7 +4654,8 @@ bool ShaderViewer::updateWatchVariable(RDTreeWidgetItem *watchItem, const RDTree
QVariant(),
});
updateWatchVariable(item, varItem->child(r), path + ".row" + ToStr(r), ~0U, rowVar, regcast);
updateWatchVariable(item, varItem->child(r), path + ".row" + ToStr(r), ~0U, mapping, rowVar,
regcast);
item->setText(1, getRegNames(varItem, ~0U, r));
item->setTag(QVariant());
watchItem->addChild(item);
@@ -4787,8 +4798,16 @@ bool ShaderViewer::updateWatchVariable(RDTreeWidgetItem *watchItem, const RDTree
val += lit(", ");
}
QString typeString = TypeString(var);
if(mapping.type != VarType::Unknown && mapping.undefinedValue)
{
typeString = lit("-");
val = tr("<undefined value>");
}
watchItem->setText(1, getRegNames(varItem, swizzle));
watchItem->setText(2, TypeString(var));
watchItem->setText(2, typeString);
if(!swatchColor.isValid())
{
@@ -4844,12 +4863,13 @@ void ShaderViewer::updateWatchVariables()
if(!match.captured(2).isEmpty())
regcast = match.captured(2)[1];
SourceVariableMapping mapping;
ShaderVariable var;
uint32_t swizzle = ~0U;
const RDTreeWidgetItem *varItem = getVarFromPath(path, &var, &swizzle);
const RDTreeWidgetItem *varItem = getVarFromPath(path, &var, &swizzle, &mapping);
if(varItem)
{
if(updateWatchVariable(item, varItem, path, swizzle, var, regcast))
if(updateWatchVariable(item, varItem, path, swizzle, mapping, var, regcast))
continue;
error = tr("Couldn't evaluate watch for '%1'").arg(expr);
@@ -5181,6 +5201,12 @@ RDTreeWidgetItem *ShaderViewer::makeSourceVariableNode(const SourceVariableMappi
}
}
if(l.undefinedValue)
{
typeName = lit("-");
value = tr("<undefined value>");
}
RDTreeWidgetItem *node = new RDTreeWidgetItem({localName, QString(), typeName, value});
for(RDTreeWidgetItem *c : children)
@@ -6099,8 +6125,9 @@ void ShaderViewer::updateVariableTooltip()
return;
ShaderVariable var;
SourceVariableMapping mapping;
if(!getVarFromPath(m_TooltipVarPath, &var))
if(!getVarFromPath(m_TooltipVarPath, &var, NULL, &mapping))
return;
if(var.type != VarType::Unknown)
@@ -6125,6 +6152,9 @@ void ShaderViewer::updateVariableTooltip()
tooltip += lit("</pre>");
}
if(mapping.type != VarType::Unknown && mapping.undefinedValue)
tooltip = tr("%1: <undefined value>").arg(var.name);
QToolTip::showText(m_TooltipPos, tooltip);
return;
}
@@ -6141,8 +6171,13 @@ void ShaderViewer::updateVariableTooltip()
}
else if(!var.members.empty())
{
QString tooltip = tr("%1: { ... }").arg(var.name);
if(mapping.type != VarType::Unknown && mapping.undefinedValue)
tooltip = tr("%1: <undefined value>").arg(var.name);
// other structs
QToolTip::showText(m_TooltipPos, lit("{ ... }"));
QToolTip::showText(m_TooltipPos, tooltip);
return;
}