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Adding ability to include build-in include files (precursor to custom…
… shader templates)
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| <?xml version="1.0" encoding="UTF-8" ?> | ||
| <class name="ShaderIncludeDB" inherits="Object" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd"> | ||
| <brief_description> | ||
| Internal database of built in shader include files. | ||
| </brief_description> | ||
| <description> | ||
| This object contains shader fragments from Godot's internal shaders. These can be used when access to internal uniform buffers and/or internal functions is required for instance when composing compositor effects or compute shaders. Only fragments for the current rendering device are loaded. | ||
| </description> | ||
| <tutorials> | ||
| </tutorials> | ||
| <methods> | ||
| <method name="get_built_in_include_file" qualifiers="static"> | ||
| <return type="String" /> | ||
| <param index="0" name="filename" type="String" /> | ||
| <description> | ||
| Returns the code for the built-in shader fragment. You can also access this in your shader code through [code]#include "filename"[/code]. | ||
| </description> | ||
| </method> | ||
| <method name="has_built_in_include_file" qualifiers="static"> | ||
| <return type="bool" /> | ||
| <param index="0" name="filename" type="String" /> | ||
| <description> | ||
| Returns [code]true[/code] if an include file with this name exists. | ||
| </description> | ||
| </method> | ||
| <method name="list_built_in_include_files" qualifiers="static"> | ||
| <return type="PackedStringArray" /> | ||
| <description> | ||
| Returns a list of built-in include files that are currently registered. | ||
| </description> | ||
| </method> | ||
| </methods> | ||
| </class> |
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| @@ -0,0 +1,115 @@ | ||
| /**************************************************************************/ | ||
| /* shader_include_db.cpp */ | ||
| /**************************************************************************/ | ||
| /* This file is part of: */ | ||
| /* GODOT ENGINE */ | ||
| /* https://godotengine.org */ | ||
| /**************************************************************************/ | ||
| /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ | ||
| /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ | ||
| /* */ | ||
| /* Permission is hereby granted, free of charge, to any person obtaining */ | ||
| /* a copy of this software and associated documentation files (the */ | ||
| /* "Software"), to deal in the Software without restriction, including */ | ||
| /* without limitation the rights to use, copy, modify, merge, publish, */ | ||
| /* distribute, sublicense, and/or sell copies of the Software, and to */ | ||
| /* permit persons to whom the Software is furnished to do so, subject to */ | ||
| /* the following conditions: */ | ||
| /* */ | ||
| /* The above copyright notice and this permission notice shall be */ | ||
| /* included in all copies or substantial portions of the Software. */ | ||
| /* */ | ||
| /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ | ||
| /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ | ||
| /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ | ||
| /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ | ||
| /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ | ||
| /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ | ||
| /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ | ||
| /**************************************************************************/ | ||
|
|
||
| #include "shader_include_db.h" | ||
|
|
||
| HashMap<String, String> ShaderIncludeDB::build_in_includes; | ||
|
|
||
| void ShaderIncludeDB::_bind_methods() { | ||
| ClassDB::bind_static_method("ShaderIncludeDB", D_METHOD("list_built_in_include_files"), &ShaderIncludeDB::list_built_in_include_files); | ||
| ClassDB::bind_static_method("ShaderIncludeDB", D_METHOD("has_built_in_include_file", "filename"), &ShaderIncludeDB::has_built_in_include_file); | ||
| ClassDB::bind_static_method("ShaderIncludeDB", D_METHOD("get_built_in_include_file", "filename"), &ShaderIncludeDB::get_built_in_include_file); | ||
| } | ||
|
|
||
| void ShaderIncludeDB::register_built_in_include_file(const String &p_filename, const String &p_shader_code) { | ||
| build_in_includes[p_filename] = p_shader_code; | ||
| } | ||
|
|
||
| PackedStringArray ShaderIncludeDB::list_built_in_include_files() { | ||
| PackedStringArray ret; | ||
|
|
||
| for (const KeyValue<String, String> &e : build_in_includes) { | ||
| ret.push_back(e.key); | ||
| } | ||
|
|
||
| return ret; | ||
| } | ||
|
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| bool ShaderIncludeDB::has_built_in_include_file(const String &p_filename) { | ||
| return build_in_includes.has(p_filename); | ||
| } | ||
|
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| String ShaderIncludeDB::get_built_in_include_file(const String &p_filename) { | ||
| const String *ptr = build_in_includes.getptr(p_filename); | ||
|
|
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| return ptr ? *ptr : String(); | ||
| } | ||
|
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| String ShaderIncludeDB::parse_include_files(const String &p_code) { | ||
| // Prevent needless processing if we don't have any includes. | ||
| if (p_code.find("#include ") == -1) { | ||
| return p_code; | ||
| } | ||
|
|
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| const String include = "#include "; | ||
| String parsed_code; | ||
|
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| Vector<String> lines = String(p_code).split("\n"); | ||
| int line_count = lines.size(); | ||
| for (int i = 0; i < line_count; i++) { | ||
| const String &l = lines[i]; | ||
|
|
||
| if (l.begins_with(include)) { | ||
| String include_file = l.replace(include, "").strip_edges(); | ||
| if (include_file[0] == '\"') { | ||
| int end_pos = include_file.find_char('\"', 1); | ||
| if (end_pos >= 0) { | ||
| include_file = include_file.substr(1, end_pos - 1); | ||
|
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| String include_code = ShaderIncludeDB::get_built_in_include_file(include_file); | ||
| if (!include_code.is_empty()) { | ||
| // Add these lines into our parse list so we parse them as well. | ||
| Vector<String> include_lines = String(include_code).split("\n"); | ||
|
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| for (int j = include_lines.size() - 1; j >= 0; j--) { | ||
| lines.insert(i + 1, include_lines[j]); | ||
| } | ||
|
|
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| line_count = lines.size(); | ||
| } else { | ||
| // Just add it back in, this will cause a compile error to alert the user. | ||
| parsed_code += l + "\n"; | ||
| } | ||
| } else { | ||
| // Include as is. | ||
| parsed_code += l + "\n"; | ||
| } | ||
| } else { | ||
| // Include as is. | ||
| parsed_code += l + "\n"; | ||
| } | ||
| } else { | ||
| // Include as is. | ||
| parsed_code += l + "\n"; | ||
| } | ||
| } | ||
|
|
||
| return parsed_code; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /**************************************************************************/ | ||
| /* shader_include_db.h */ | ||
| /**************************************************************************/ | ||
| /* This file is part of: */ | ||
| /* GODOT ENGINE */ | ||
| /* https://godotengine.org */ | ||
| /**************************************************************************/ | ||
| /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ | ||
| /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ | ||
| /* */ | ||
| /* Permission is hereby granted, free of charge, to any person obtaining */ | ||
| /* a copy of this software and associated documentation files (the */ | ||
| /* "Software"), to deal in the Software without restriction, including */ | ||
| /* without limitation the rights to use, copy, modify, merge, publish, */ | ||
| /* distribute, sublicense, and/or sell copies of the Software, and to */ | ||
| /* permit persons to whom the Software is furnished to do so, subject to */ | ||
| /* the following conditions: */ | ||
| /* */ | ||
| /* The above copyright notice and this permission notice shall be */ | ||
| /* included in all copies or substantial portions of the Software. */ | ||
| /* */ | ||
| /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ | ||
| /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ | ||
| /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ | ||
| /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ | ||
| /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ | ||
| /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ | ||
| /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ | ||
| /**************************************************************************/ | ||
|
|
||
| #ifndef SHADER_INCLUDE_DB_H | ||
| #define SHADER_INCLUDE_DB_H | ||
|
|
||
| #include "core/object/class_db.h" | ||
| #include "core/string/ustring.h" | ||
| #include "core/templates/hash_map.h" | ||
| #include "core/variant/variant.h" | ||
|
|
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| class ShaderIncludeDB : public Object { | ||
| GDCLASS(ShaderIncludeDB, Object) | ||
|
|
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| private: | ||
| static HashMap<String, String> build_in_includes; | ||
|
|
||
| protected: | ||
| static void _bind_methods(); | ||
|
|
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| public: | ||
| static void register_built_in_include_file(const String &p_filename, const String &p_shader_code); | ||
| static PackedStringArray list_built_in_include_files(); | ||
| static bool has_built_in_include_file(const String &p_filename); | ||
| static String get_built_in_include_file(const String &p_filename); | ||
| static String parse_include_files(const String &p_code); | ||
| }; | ||
|
|
||
| #endif // SHADER_INCLUDE_DB_H |