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Code Releases Wiki Activity

Added const qualifier support for function arguments in shaders

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This commit is contained in:
Yuri Roubinsky
2020-07-01 11:55:49 +03:00
parent 719609522a
commit c554d9e556
4 changed files with 30 additions and 1 deletions
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24
servers/rendering/shader_language.cpp
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@@ -982,6 +982,9 @@ bool ShaderLanguage::_find_identifier(const BlockNode *p_block, bool p_allow_rea
if (r_struct_name) {
*r_struct_name = function->arguments[i].type_str;
}
if (r_is_const) {
*r_is_const = function->arguments[i].is_const;
}
return true;
}
}
@@ -3553,7 +3556,7 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons
for (int i = 0; i < call_function->arguments.size(); i++) {
int argidx = i + 1;
if (argidx < func->arguments.size()) {
if (call_function->arguments[i].qualifier == ArgumentQualifier::ARGUMENT_QUALIFIER_OUT || call_function->arguments[i].qualifier == ArgumentQualifier::ARGUMENT_QUALIFIER_INOUT) {
if (call_function->arguments[i].is_const || call_function->arguments[i].qualifier == ArgumentQualifier::ARGUMENT_QUALIFIER_OUT || call_function->arguments[i].qualifier == ArgumentQualifier::ARGUMENT_QUALIFIER_INOUT) {
bool error = false;
Node *n = func->arguments[argidx];
if (n->type == Node::TYPE_CONSTANT || n->type == Node::TYPE_OPERATOR) {
@@ -6780,15 +6783,29 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct
break;
}
bool is_const = false;
if (tk.type == TK_CONST) {
is_const = true;
tk = _get_token();
}
ArgumentQualifier qualifier = ARGUMENT_QUALIFIER_IN;
if (tk.type == TK_ARG_IN) {
qualifier = ARGUMENT_QUALIFIER_IN;
tk = _get_token();
} else if (tk.type == TK_ARG_OUT) {
if (is_const) {
_set_error("'out' qualifier cannot be used within a function parameter declared with 'const'.");
return ERR_PARSE_ERROR;
}
qualifier = ARGUMENT_QUALIFIER_OUT;
tk = _get_token();
} else if (tk.type == TK_ARG_INOUT) {
if (is_const) {
_set_error("'inout' qualifier cannot be used within a function parameter declared with 'const'.");
return ERR_PARSE_ERROR;
}
qualifier = ARGUMENT_QUALIFIER_INOUT;
tk = _get_token();
}
@@ -6877,6 +6894,7 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct
arg.tex_builtin_check = false;
arg.tex_argument_filter = FILTER_DEFAULT;
arg.tex_argument_repeat = REPEAT_DEFAULT;
arg.is_const = is_const;
func_node->arguments.push_back(arg);
@@ -7273,6 +7291,10 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct
calltip += CharType(0xFFFF);
}
if (shader->functions[i].function->arguments[j].is_const) {
calltip += "const ";
}
if (shader->functions[i].function->arguments[j].qualifier != ArgumentQualifier::ARGUMENT_QUALIFIER_IN) {
if (shader->functions[i].function->arguments[j].qualifier == ArgumentQualifier::ARGUMENT_QUALIFIER_OUT) {
calltip += "out ";