made it acutally work in godot, and made it draw a texture

.gitignore

@@ -53,3 +53,5 @@ CMakeUserPresets.json
 
 # stupid godot developers using SCons
 build/
+
+godot/

CMakeLists.txt

@@ -55,8 +55,8 @@ target_sources(${LIBNAME}
     PRIVATE
     src/register_types.cpp
     src/register_types.h
-    src/example_class.cpp
+    src/udpvideostream_class.cpp
-    src/example_class.h
+    src/udpvideostream_class.h
 )
 
 # Fetch a list of the xml files to use for documentation and add to our target

project/bin/example.gdextension

@@ -1,57 +0,0 @@
-[configuration]
-
-entry_symbol = "example_library_init"
-compatibility_minimum = "4.1"
-reloadable = false
-
-[libraries]
-; Relative paths ensure that our GDExtension can be placed anywhere in the project directory.
-macos.single.debug = "./macos/libEXTENSION-NAME.macos.template_debug.dylib"
-macos.double.debug = "./macos/libEXTENSION-NAME.macos.template_debug.double.dylib"
-macos.single.release = "./macos/libEXTENSION-NAME.macos.template_release.dylib"
-macos.double.release = "./macos/libEXTENSION-NAME.macos.template_release.double.dylib"
-
-ios.arm64.single.debug = "./ios/libEXTENSION-NAME.ios.template_debug.arm64.dylib"
-ios.arm64.double.debug = "./ios/libEXTENSION-NAME.ios.template_debug.arm64.double.dylib"
-ios.arm64.single.release = "./ios/libEXTENSION-NAME.ios.template_release.arm64.dylib"
-ios.arm64.double.release = "./ios/libEXTENSION-NAME.ios.template_release.arm64.double.dylib"
-
-windows.x86_32.single.debug = "./windows/EXTENSION-NAME.windows.template_debug.x86_32.dll"
-windows.x86_32.double.debug = "./windows/EXTENSION-NAME.windows.template_debug.x86_32.double.dll"
-windows.x86_32.single.release = "./windows/EXTENSION-NAME.windows.template_release.x86_32.dll"
-windows.x86_32.double.release = "./windows/EXTENSION-NAME.windows.template_release.x86_32.double.dll"
-
-windows.x86_64.single.debug = "./windows/EXTENSION-NAME.windows.template_debug.x86_64.dll"
-windows.x86_64.double.debug = "./windows/EXTENSION-NAME.windows.template_debug.x86_64.double.dll"
-windows.x86_64.single.release = "./windows/EXTENSION-NAME.windows.template_release.x86_64.dll"
-windows.x86_64.double.release = "./windows/EXTENSION-NAME.windows.template_release.x86_64.double.dll"
-
-linux.x86_64.single.debug = "./linux/libEXTENSION-NAME.linux.template_debug.x86_64.so"
-linux.x86_64.double.debug = "./linux/libEXTENSION-NAME.linux.template_debug.x86_64.double.so"
-linux.x86_64.single.release = "./linux/libEXTENSION-NAME.linux.template_release.x86_64.so"
-linux.x86_64.double.release = "./linux/libEXTENSION-NAME.linux.template_release.x86_64.double.so"
-
-linux.arm64.single.debug = "./linux/libEXTENSION-NAME.linux.template_debug.arm64.so"
-linux.arm64.double.debug = "./linux/libEXTENSION-NAME.linux.template_debug.arm64.double.so"
-linux.arm64.single.release = "./linux/libEXTENSION-NAME.linux.template_release.arm64.so"
-linux.arm64.double.release = "./linux/libEXTENSION-NAME.linux.template_release.arm64.double.so"
-
-linux.rv64.single.debug = "./linux/libEXTENSION-NAME.linux.template_debug.rv64.so"
-linux.rv64.double.debug = "./linux/libEXTENSION-NAME.linux.template_debug.rv64.double.so"
-linux.rv64.single.release = "./linux/libEXTENSION-NAME.linux.template_release.rv64.so"
-linux.rv64.double.release = "./linux/libEXTENSION-NAME.linux.template_release.rv64.double.so"
-
-android.x86_64.single.debug = "./android/libEXTENSION-NAME.android.template_debug.x86_64.so"
-android.x86_64.double.debug = "./android/libEXTENSION-NAME.android.template_debug.x86_64.double.so"
-android.x86_64.single.release = "./android/libEXTENSION-NAME.android.template_release.x86_64.so"
-android.x86_64.double.release = "./android/libEXTENSION-NAME.android.template_release.x86_64.double.so"
-
-android.arm64.single.debug = "./android/libEXTENSION-NAME.android.template_debug.arm64.so"
-android.arm64.double.debug = "./android/libEXTENSION-NAME.android.template_debug.arm64.double.so"
-android.arm64.single.release = "./android/libEXTENSION-NAME.android.template_release.arm64.so"
-android.arm64.double.release = "./android/libEXTENSION-NAME.android.template_release.arm64.double.so"
-
-web.wasm32.single.debug = "./web/libEXTENSION-NAME.web.template_debug.wasm32.nothreads.wasm"
-web.wasm32.double.debug = "./web/libEXTENSION-NAME.web.template_debug.wasm32.double.nothreads.wasm"
-web.wasm32.single.release = "./web/libEXTENSION-NAME.web.template_release.wasm32.nothreads.wasm"
-web.wasm32.double.release = "./web/libEXTENSION-NAME.web.template_release.wasm32.double.nothreads.wasm"

project/bin/gdvapi.gdextension

@@ -0,0 +1,6 @@
+[configuration]
+entry_symbol = "gdvapi_library_init"
+compatibility_minimum = "4.7"
+
+[libraries]
+linux.x86_64 = "res://bin/linux/gdvapi.linux.template_debug.x86_64.so"

project/bin/gdvapi.gdextension.uid

@@ -0,0 +1 @@
+uid://vgmwthvwcljf

project/example.gd

@@ -2,5 +2,4 @@ extends Node
 
 
 func _ready() -> void:
-	var example := ExampleClass.new()
+	$UDPVideoStream.begin("localhost:1000")
-	example.print_type(example)

project/example.gd.uid

@@ -0,0 +1 @@
+uid://bkwk40ybs8kgm

project/example.tscn

@@ -1,6 +1,8 @@
-[gd_scene load_steps=2 format=3 uid="uid://dh0oj81pufivs"]
+[gd_scene format=3 uid="uid://dh0oj81pufivs"]
 
-[ext_resource type="Script" path="res://example.gd" id="1_jdh55"]
+[ext_resource type="Script" uid="uid://bkwk40ybs8kgm" path="res://example.gd" id="1_jdh55"]
 
-[node name="Node" type="Node"]
+[node name="Node" type="Node" unique_id=2080300232]
 script = ExtResource("1_jdh55")
+
+[node name="UDPVideoStream" type="UDPVideoStream" parent="." unique_id=270982386]

project/icon.svg.import

@@ -18,6 +18,8 @@ dest_files=["res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.cte
 compress/mode=0
 compress/high_quality=false
 compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
 compress/hdr_compression=1
 compress/normal_map=0
 compress/channel_pack=0
@@ -25,6 +27,10 @@ mipmaps/generate=false
 mipmaps/limit=-1
 roughness/mode=0
 roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/normal_map_invert_y=false

project/project.godot

@@ -8,8 +8,13 @@
 
 config_version=5
 
+[animation]
+
+compatibility/default_parent_skeleton_in_mesh_instance_3d=true
+
 [application]
 
 config/name="godot cpp template"
-config/features=PackedStringArray("4.1", "Forward Plus")
+run/main_scene="uid://dh0oj81pufivs"
+config/features=PackedStringArray("4.7", "Forward Plus")
 config/icon="res://icon.svg"

src/example_class.cpp

@@ -1,9 +0,0 @@
-#include "example_class.h"
-
-void ExampleClass::_bind_methods() {
-	godot::ClassDB::bind_method(D_METHOD("print_type", "variant"), &ExampleClass::print_type);
-}
-
-void ExampleClass::print_type(const Variant &p_variant) const {
-	print_line(vformat("Type: %d", p_variant.get_type()));
-}

src/example_class.h

@@ -1,20 +0,0 @@
-#pragma once
-
-#include "godot_cpp/classes/ref_counted.hpp"
-#include "godot_cpp/classes/wrapped.hpp"
-#include "godot_cpp/variant/variant.hpp"
-
-using namespace godot;
-
-class ExampleClass : public RefCounted {
-	GDCLASS(ExampleClass, RefCounted)
-
-protected:
-	static void _bind_methods();
-
-public:
-	ExampleClass() = default;
-	~ExampleClass() override = default;
-
-	void print_type(const Variant &p_variant) const;
-};

src/register_types.cpp

@@ -5,7 +5,7 @@
 #include <godot_cpp/core/defs.hpp>
 #include <godot_cpp/godot.hpp>
 
-#include "example_class.h"
+#include "udpvideostream_class.h"
 
 using namespace godot;
 
@@ -14,7 +14,7 @@ void initialize_gdextension_types(ModuleInitializationLevel p_level)
 	if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
 		return;
 	}
-	GDREGISTER_CLASS(ExampleClass);
+	GDREGISTER_CLASS(UDPVideoStream);
 }
 
 void uninitialize_gdextension_types(ModuleInitializationLevel p_level) {
@@ -26,7 +26,7 @@ void uninitialize_gdextension_types(ModuleInitializationLevel p_level) {
 extern "C"
 {
 	// Initialization
-	GDExtensionBool GDE_EXPORT example_library_init(GDExtensionInterfaceGetProcAddress p_get_proc_address, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization)
+	GDExtensionBool GDE_EXPORT gdvapi_library_init(GDExtensionInterfaceGetProcAddress p_get_proc_address, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization)
 	{
 		GDExtensionBinding::InitObject init_obj(p_get_proc_address, p_library, r_initialization);
 		init_obj.register_initializer(initialize_gdextension_types);

src/udpvideostream_class.cpp

@@ -0,0 +1,97 @@
+#include "udpvideostream_class.h"
+#include "godot_cpp/classes/rendering_server.hpp"
+#include "godot_cpp/classes/rendering_device.hpp"
+#include "godot_cpp/classes/rd_texture_format.hpp"
+#include "godot_cpp/classes/rd_texture_view.hpp"
+
+
+using namespace godot;
+
+void UDPVideoStream::_bind_methods() {
+	godot::ClassDB::bind_method(D_METHOD("begin", "variant"), &UDPVideoStream::begin);
+}
+
+void UDPVideoStream::begin(const Variant &source) const {
+	print_line(vformat("[gdvapi] begin stream at %s", source.stringify()));
+}
+
+UDPVideoStream::~UDPVideoStream() {
+    cleanup();
+}
+
+void UDPVideoStream::_notification(int p_what) {
+    switch (p_what) {
+        case NOTIFICATION_POST_ENTER_TREE: {
+        	texture_init();
+        } break;
+        
+        case NOTIFICATION_EXIT_TREE: {
+            cleanup();
+        } break;
+    }
+}
+
+
+void UDPVideoStream::texture_init() {
+	RenderingDevice *rd = RenderingServer::get_singleton()->get_rendering_device();
+    if (!rd) {
+        UtilityFunctions::printerr("Vulkan RenderingDevice is not available!");
+        return;
+    }
+
+    int width = 256;
+    int height = 256;
+
+    Ref<RDTextureFormat> format;
+    format.instantiate();
+    format->set_texture_type(RenderingDevice::TEXTURE_TYPE_2D);
+    format->set_format(RenderingDevice::DATA_FORMAT_R8G8B8A8_UNORM);
+    format->set_width(width);
+    format->set_height(height);
+    format->set_depth(1);
+    format->set_array_layers(1);
+    format->set_mipmaps(1);
+    format->set_usage_bits(RenderingDevice::TEXTURE_USAGE_SAMPLING_BIT | 
+                           RenderingDevice::TEXTURE_USAGE_CAN_UPDATE_BIT);
+
+    PackedByteArray byte_array;
+    byte_array.resize(width * height * 4);
+    for (int i = 0; i < byte_array.size(); i += 4) {
+        byte_array[i]     = 0;
+        byte_array[i + 1] = 0;
+        byte_array[i + 2] = 255;
+        byte_array[i + 3] = 255;
+    }
+
+    TypedArray<PackedByteArray> data;
+    data.push_back(byte_array);
+
+    Ref<RDTextureView> view;
+	view.instantiate(); 
+
+	texture_rd_rid = rd->texture_create(format, view, data);
+
+    if (texture_rd_rid.is_valid()) {
+        godot_texture.instantiate();
+        godot_texture->set_texture_rd_rid(texture_rd_rid);
+        
+        queue_redraw();
+    }
+}
+
+void UDPVideoStream::cleanup() {
+    RenderingDevice *rd = RenderingServer::get_singleton()->get_rendering_device();
+    
+    godot_texture.unref();
+
+    if (rd && texture_rd_rid.is_valid()) {
+        rd->free_rid(texture_rd_rid);
+        texture_rd_rid = RID();
+    }
+}
+
+void UDPVideoStream::_draw() {
+    if (godot_texture.is_valid() && godot_texture->get_texture_rd_rid().is_valid()) {
+        draw_texture(godot_texture, Point2(0, 0));
+    }
+}

src/udpvideostream_class.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#include "godot_cpp/classes/control.hpp"
+#include "godot_cpp/classes/wrapped.hpp"
+#include "godot_cpp/variant/variant.hpp"
+#include "godot_cpp/classes/rendering_device.hpp"
+#include "godot_cpp/classes/texture2drd.hpp"
+
+using namespace godot;
+
+class UDPVideoStream : public Control {
+	GDCLASS(UDPVideoStream, Control)
+
+private:
+	RID texture_rd_rid;
+	Ref<Texture2DRD> godot_texture;
+
+	void cleanup();
+	void texture_init();
+
+protected:
+	static void _bind_methods();
+
+public:
+	UDPVideoStream() = default;
+	~UDPVideoStream() override;
+
+	void begin(const Variant &source) const;
+
+	void _notification(int p_what);
+	virtual void _draw() override;
+};