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Shader: Implement const if and const values

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This commit is contained in:
Jérôme Leclercq
2021-07-07 21:38:23 +02:00
parent d679eccb43
commit 1f6937ab1b
28 changed files with 315 additions and 60 deletions
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34
src/Nazara/Shader/SpirvWriter.cpp
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@@ -86,6 +86,23 @@ namespace Nz
m_constantCache.Register(*m_constantCache.BuildType(node.cachedExpressionType.value()));
}
void Visit(ShaderAst::CallFunctionExpression& node) override
{
AstRecursiveVisitor::Visit(node);
assert(m_funcIndex);
auto& func = m_funcs[*m_funcIndex];
auto& funcCall = func.funcCalls.emplace_back();
funcCall.firstVarIndex = func.variables.size();
for (const auto& parameter : node.parameters)
{
auto& var = func.variables.emplace_back();
var.typeId = m_constantCache.Register(*m_constantCache.BuildPointerType(GetExpressionType(*parameter), SpirvStorageClass::Function));
}
}
void Visit(ShaderAst::ConditionalExpression& node) override
{
throw std::runtime_error("unexpected conditional expression, did you forget to sanitize the shader?");
@@ -126,23 +143,6 @@ namespace Nz
}
}
void Visit(ShaderAst::CallFunctionExpression& node) override
{
AstRecursiveVisitor::Visit(node);
assert(m_funcIndex);
auto& func = m_funcs[*m_funcIndex];
auto& funcCall = func.funcCalls.emplace_back();
funcCall.firstVarIndex = func.variables.size();
for (const auto& parameter : node.parameters)
{
auto& var = func.variables.emplace_back();
var.typeId = m_constantCache.Register(*m_constantCache.BuildPointerType(GetExpressionType(*parameter), SpirvStorageClass::Function));
}
}
void Visit(ShaderAst::DeclareFunctionStatement& node) override
{
std::optional<ShaderStageType> entryPointType;