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Add renderer state defines to shader preprocessor

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This commit is contained in:
Chaosus 2024-10-26 12:31:01 +03:00
parent 61accf0605
commit e021076b4c
2 changed files with 35 additions and 0 deletions
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34
servers/rendering/shader_preprocessor.cpp
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@ -816,6 +816,11 @@ void ShaderPreprocessor::process_undef(Tokenizer *p_tokenizer) {
} }
if (state->defines.has(label)) { if (state->defines.has(label)) {
if (state->defines[label]->is_builtin) {
set_error(vformat(RTR("Cannot use '%s' on built-in define."), "undef"), line);
return;
}
memdelete(state->defines[label]); memdelete(state->defines[label]);
state->defines.erase(label); state->defines.erase(label);
} }
@ -1324,6 +1329,35 @@ Error ShaderPreprocessor::preprocess(const String &p_code, const String &p_filen
pp_state.current_filename = p_filename; pp_state.current_filename = p_filename;
pp_state.save_regions = r_regions != nullptr; pp_state.save_regions = r_regions != nullptr;
} }
// Built-in defines.
{
static HashMap<StringName, String> defines;
if (defines.is_empty()) {
const String rendering_method = OS::get_singleton()->get_current_rendering_method();
if (rendering_method == "forward_plus") {
defines["CURRENT_RENDERER"] = _MKSTR(2);
} else if (rendering_method == "mobile") {
defines["CURRENT_RENDERER"] = _MKSTR(1);
} else { // gl_compatibility
defines["CURRENT_RENDERER"] = _MKSTR(0);
}
defines["RENDERER_COMPATIBILITY"] = _MKSTR(0);
defines["RENDERER_MOBILE"] = _MKSTR(1);
defines["RENDERER_FORWARD_PLUS"] = _MKSTR(2);
}
for (const KeyValue<StringName, String> &E : defines) {
Define *define = memnew(Define);
define->is_builtin = true;
define->body = E.value;
pp_state.defines[E.key] = define;
}
}
Error err = preprocess(&pp_state, p_code, r_result); Error err = preprocess(&pp_state, p_code, r_result);
if (err != OK) { if (err != OK) {
if (r_error_text) { if (r_error_text) {

1
servers/rendering/shader_preprocessor.h
View File

@ -132,6 +132,7 @@ private:
struct Define { struct Define {
Vector<String> arguments; Vector<String> arguments;
String body; String body;
bool is_builtin = false;
}; };
struct Branch { struct Branch {