Clean up Shader Preprocessor

* Moved preprocessor to Shader and ShaderInclude
* Clean up RenderingServer side
* Preprocessor is separate from parser now, but it emits tokens with include location hints.
* Improved ShaderEditor validation code
* Added include file code completion
* Added notification for all files affected by a broken include.

4 files changed, 18 insertions, 0 deletions

diff --git a/servers/rendering/renderer_rd/storage_rd/material_storage.cpp b/servers/rendering/renderer_rd/storage_rd/material_storage.cpp
index fcd25852eb..af2f5aafed 100644
--- a/servers/rendering/renderer_rd/storage_rd/material_storage.cpp
+++ b/servers/rendering/renderer_rd/storage_rd/material_storage.cpp
@@ -2341,6 +2341,7 @@ void MaterialStorage::shader_set_code(RID p_shader, const String &p_code) {
 	}
 
 	if (shader->data) {
+		shader->data->set_path_hint(shader->path_hint);
 		shader->data->set_code(p_code);
 	}
 
@@ -2351,6 +2352,16 @@ void MaterialStorage::shader_set_code(RID p_shader, const String &p_code) {
 	}
 }
 
+void MaterialStorage::shader_set_path_hint(RID p_shader, const String &p_path) {
+	Shader *shader = shader_owner.get_or_null(p_shader);
+	ERR_FAIL_COND(!shader);
+
+	shader->path_hint = p_path;
+	if (shader->data) {
+		shader->data->set_path_hint(p_path);
+	}
+}
+
 String MaterialStorage::shader_get_code(RID p_shader) const {
 	Shader *shader = shader_owner.get_or_null(p_shader);
 	ERR_FAIL_COND_V(!shader, String());
diff --git a/servers/rendering/renderer_rd/storage_rd/material_storage.h b/servers/rendering/renderer_rd/storage_rd/material_storage.h
index e35d5e7669..b083968e5f 100644
--- a/servers/rendering/renderer_rd/storage_rd/material_storage.h
+++ b/servers/rendering/renderer_rd/storage_rd/material_storage.h
@@ -57,6 +57,7 @@ enum ShaderType {
 
 struct ShaderData {
 	virtual void set_code(const String &p_Code) = 0;
+	virtual void set_path_hint(const String &p_hint) = 0;
 	virtual void set_default_texture_param(const StringName &p_name, RID p_texture, int p_index) = 0;
 	virtual void get_param_list(List<PropertyInfo> *p_param_list) const = 0;
 
@@ -77,6 +78,7 @@ struct Material;
 struct Shader {
 	ShaderData *data = nullptr;
 	String code;
+	String path_hint;
 	ShaderType type;
 	HashMap<StringName, HashMap<int, RID>> default_texture_parameter;
 	HashSet<Material *> owners;
@@ -364,6 +366,7 @@ public:
 	virtual void shader_free(RID p_rid) override;
 
 	virtual void shader_set_code(RID p_shader, const String &p_code) override;
+	virtual void shader_set_path_hint(RID p_shader, const String &p_path) override;
 	virtual String shader_get_code(RID p_shader) const override;
 	virtual void shader_get_param_list(RID p_shader, List<PropertyInfo> *p_param_list) const override;
 
diff --git a/servers/rendering/renderer_rd/storage_rd/particles_storage.cpp b/servers/rendering/renderer_rd/storage_rd/particles_storage.cpp
index 5200e0d318..ea4bd6ab0b 100644
--- a/servers/rendering/renderer_rd/storage_rd/particles_storage.cpp
+++ b/servers/rendering/renderer_rd/storage_rd/particles_storage.cpp
@@ -1512,6 +1512,9 @@ bool ParticlesStorage::particles_is_inactive(RID p_particles) const {
 
 /* Particles SHADER */
 
+void ParticlesStorage::ParticlesShaderData::set_path_hint(const String &p_path) {
+	path = p_path;
+}
 void ParticlesStorage::ParticlesShaderData::set_code(const String &p_code) {
 	ParticlesStorage *particles_storage = ParticlesStorage::get_singleton();
 	//compile
diff --git a/servers/rendering/renderer_rd/storage_rd/particles_storage.h b/servers/rendering/renderer_rd/storage_rd/particles_storage.h
index 70ac6f0349..f3a4e97fa7 100644
--- a/servers/rendering/renderer_rd/storage_rd/particles_storage.h
+++ b/servers/rendering/renderer_rd/storage_rd/particles_storage.h
@@ -363,6 +363,7 @@ private:
 		uint32_t userdata_count = 0;
 
 		virtual void set_code(const String &p_Code);
+		virtual void set_path_hint(const String &p_hint);
 		virtual void set_default_texture_param(const StringName &p_name, RID p_texture, int p_index);
 		virtual void get_param_list(List<PropertyInfo> *p_param_list) const;
 		virtual void get_instance_param_list(List<RendererMaterialStorage::InstanceShaderParam> *p_param_list) const;