svg: add lottie resource loader importer using thorvg

add lottie importer to import lottie as CompressedTexture2D, and support drop it as AnimatedSprite2D in editor

editor/plugins/canvas_item_editor_plugin.cpp

@@ -32,6 +32,7 @@
 
 #include "core/config/project_settings.h"
 #include "core/input/input.h"
+#include "core/io/resource_importer.h"
 #include "core/os/keyboard.h"
 #include "editor/debugger/editor_debugger_node.h"
 #include "editor/editor_main_screen.h"
@@ -47,6 +48,7 @@
 #include "editor/scene_tree_dock.h"
 #include "editor/themes/editor_scale.h"
 #include "editor/themes/editor_theme_manager.h"
+#include "scene/2d/animated_sprite_2d.h"
 #include "scene/2d/audio_stream_player_2d.h"
 #include "scene/2d/polygon_2d.h"
 #include "scene/2d/skeleton_2d.h"
@@ -61,6 +63,7 @@
 #include "scene/gui/view_panner.h"
 #include "scene/main/canvas_layer.h"
 #include "scene/main/window.h"
+#include "scene/resources/atlas_texture.h"
 #include "scene/resources/packed_scene.h"
 #include "scene/resources/style_box_texture.h"
 
@@ -5895,6 +5898,22 @@ void CanvasItemEditorViewport::_create_texture_node(Node *p_parent, Node *p_chil
 			Vector2(0, texture_size.height)
 		};
 		undo_redo->add_do_property(p_child, "polygon", list);
+	} else if (Object::cast_to<AnimatedSprite2D>(p_child)) {
+		Dictionary meta = ResourceFormatImporter::get_singleton()->get_resource_metadata(p_path);
+		Ref<SpriteFrames> frames = memnew(SpriteFrames);
+		frames->set_animation_speed(SceneStringName(default_), meta.get("fps", 5));
+		Size2i sprite_size = meta["sprite_size"];
+		for (int i = 0; i < (int)meta["frame_count"]; i++) {
+			int x = i % (int)meta["columns"] * sprite_size.width;
+			int y = i / (int)meta["columns"] * sprite_size.height;
+			Ref<AtlasTexture> atlas_texture;
+			atlas_texture.instantiate();
+			atlas_texture->set_atlas(texture);
+			atlas_texture->set_region(Rect2(x, y, sprite_size.width, sprite_size.height));
+			frames->add_frame(SceneStringName(default_), atlas_texture);
+		}
+		undo_redo->add_do_property(p_child, "autoplay", SceneStringName(default_));
+		undo_redo->add_do_property(p_child, "frames", frames);
 	}
 
 	// Compute the global position
@@ -6300,6 +6319,7 @@ CanvasItemEditorViewport::CanvasItemEditorViewport(CanvasItemEditor *p_canvas_it
 	texture_node_types.push_back("GPUParticles2D");
 	texture_node_types.push_back("Polygon2D");
 	texture_node_types.push_back("TouchScreenButton");
+	texture_node_types.push_back("AnimatedSprite2D");
 	// Control
 	texture_node_types.push_back("TextureRect");
 	texture_node_types.push_back("TextureButton");

modules/svg/SCsub

@@ -14,7 +14,6 @@ thirdparty_dir = "#thirdparty/thorvg/"
 thirdparty_sources = [
     # common
     "src/common/tvgCompressor.cpp",
-    "src/common/tvgLines.cpp",
     "src/common/tvgMath.cpp",
     "src/common/tvgStr.cpp",
     # SVG parser
@@ -52,13 +51,28 @@ thirdparty_sources = [
     "src/renderer/sw_engine/tvgSwImage.cpp",
     "src/renderer/sw_engine/tvgSwMath.cpp",
     "src/renderer/sw_engine/tvgSwMemPool.cpp",
+    "src/renderer/sw_engine/tvgSwPostEffect.cpp",
     "src/renderer/sw_engine/tvgSwRaster.cpp",
     "src/renderer/sw_engine/tvgSwRenderer.cpp",
     "src/renderer/sw_engine/tvgSwRle.cpp",
     "src/renderer/sw_engine/tvgSwShape.cpp",
     "src/renderer/sw_engine/tvgSwStroke.cpp",
 ]
 
+if env.editor_build:
+    thirdparty_sources += [
+        "src/renderer/tvgAnimation.cpp",
+        # Lottie loader
+        "src/loaders/lottie/tvgLottieAnimation.cpp",
+        "src/loaders/lottie/tvgLottieBuilder.cpp",
+        "src/loaders/lottie/tvgLottieInterpolator.cpp",
+        "src/loaders/lottie/tvgLottieLoader.cpp",
+        "src/loaders/lottie/tvgLottieModel.cpp",
+        "src/loaders/lottie/tvgLottieModifier.cpp",
+        "src/loaders/lottie/tvgLottieParser.cpp",
+        "src/loaders/lottie/tvgLottieParserHandler.cpp",
+    ]
+
 if env["module_webp_enabled"]:
     thirdparty_sources += ["src/loaders/external_webp/tvgWebpLoader.cpp"]
     env_svg.Append(CPPDEFINES=["THORVG_WEBP_LOADER_SUPPORT"])
@@ -70,6 +84,9 @@ env_svg.Prepend(CPPPATH=[thirdparty_dir + "inc"])
 # Enable ThorVG static object linking.
 env_svg.Append(CPPDEFINES=["TVG_STATIC"])
 
+if env.editor_build:
+    env_svg.Append(CPPDEFINES=["THORVG_LOTTIE_LOADER_SUPPORT", "LOTTIE_ENABLED"])
+
 env_thirdparty = env_svg.Clone()
 env_thirdparty.disable_warnings()
 env_thirdparty.Prepend(
@@ -83,6 +100,9 @@ env_thirdparty.Prepend(
         thirdparty_dir + "src/loaders/jpg",
     ]
 )
+
+if env.editor_build:
+    env_thirdparty.Prepend(CPPPATH=[thirdparty_dir + "src/loaders/lottie"])
 if env["builtin_libpng"]:
     env_thirdparty.Prepend(CPPPATH=["#thirdparty/libpng"])
 if env["module_webp_enabled"]:
@@ -97,7 +117,10 @@ env.modules_sources += thirdparty_obj
 
 module_obj = []
 
-env_svg.add_source_files(module_obj, "*.cpp")
+env_svg.add_source_files(module_obj, ["register_types.cpp", "image_loader_svg.cpp"])
+if env.editor_build:
+    env_svg.add_source_files(module_obj, "editor/*.cpp")
+
 env.modules_sources += module_obj
 
 # Needed to force rebuilding the module files when the thirdparty library is updated.

modules/svg/config.py

@@ -4,3 +4,13 @@ def can_build(env, platform):
 
 def configure(env):
     pass
+
+
+def get_doc_classes():
+    return [
+        "ResourceImporterLottie",
+    ]
+
+
+def get_doc_path():
+    return "doc_classes"

modules/svg/doc_classes/ResourceImporterLottie.xml

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="ResourceImporterLottie" inherits="ResourceImporter" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../doc/class.xsd">
+	<brief_description>
+		Import a Lottie animation as a sprite sheet.
+	</brief_description>
+	<description>
+		This imports a Lottie animation to a [CompressedTexture2D]. See also [ResourceImporterTexture].
+		[b]Note:[/b] Both JSON and dotLottie (extra resources are ignored) are supported. Only files with the [code].lottie[/code] extension are recognized. You will have to rename the JSON file extension to [code].lottie[/code] to import it.
+	</description>
+	<tutorials>
+	</tutorials>
+	<members>
+		<member name="compress/channel_pack" type="int" setter="" getter="" default="0">
+		</member>
+		<member name="compress/hdr_compression" type="int" setter="" getter="" default="1">
+		</member>
+		<member name="compress/high_quality" type="bool" setter="" getter="" default="false">
+		</member>
+		<member name="compress/lossy_quality" type="float" setter="" getter="" default="0.7">
+		</member>
+		<member name="compress/mode" type="int" setter="" getter="" default="0">
+		</member>
+		<member name="compress/normal_map" type="int" setter="" getter="" default="0">
+		</member>
+		<member name="detect_3d/compress_to" type="int" setter="" getter="" default="1">
+		</member>
+		<member name="editor/convert_colors_with_editor_theme" type="bool" setter="" getter="" default="false">
+		</member>
+		<member name="editor/scale_with_editor_scale" type="bool" setter="" getter="" default="false">
+		</member>
+		<member name="lottie/begin" type="float" setter="" getter="" default="0">
+		</member>
+		<member name="lottie/columns" type="int" setter="" getter="" default="0">
+		</member>
+		<member name="lottie/end" type="float" setter="" getter="" default="1">
+		</member>
+		<member name="lottie/fps" type="float" setter="" getter="" default="30">
+		</member>
+		<member name="lottie/scale" type="float" setter="" getter="" default="1">
+		</member>
+		<member name="lottie/size_limit" type="int" setter="" getter="" default="2048">
+		</member>
+		<member name="mipmaps/generate" type="bool" setter="" getter="" default="false">
+		</member>
+		<member name="mipmaps/limit" type="int" setter="" getter="" default="-1">
+		</member>
+		<member name="process/fix_alpha_border" type="bool" setter="" getter="" default="true">
+		</member>
+		<member name="process/hdr_as_srgb" type="bool" setter="" getter="" default="false">
+		</member>
+		<member name="process/hdr_clamp_exposure" type="bool" setter="" getter="" default="false">
+		</member>
+		<member name="process/normal_map_invert_y" type="bool" setter="" getter="" default="false">
+		</member>
+		<member name="process/premult_alpha" type="bool" setter="" getter="" default="false">
+		</member>
+		<member name="process/size_limit" type="int" setter="" getter="" default="0">
+		</member>
+		<member name="roughness/mode" type="int" setter="" getter="" default="0">
+		</member>
+		<member name="roughness/src_normal" type="String" setter="" getter="" default="&quot;&quot;">
+		</member>
+		<member name="svg/scale" type="float" setter="" getter="" default="1.0">
+		</member>
+	</members>
+</class>