Expose a function to create textures from a native handle in the compatibility renderer

doc/classes/RenderingServer.xml

@@ -3583,6 +3583,21 @@
 				[b]Note:[/b] The [param texture] must have the same width, height, depth and format as the current texture data. Otherwise, an error will be printed and the original texture won't be modified. If you need to use different width, height, depth or format, use [method texture_replace] instead.
 			</description>
 		</method>
+		<method name="texture_create_from_native_handle">
+			<return type="RID" />
+			<param index="0" name="type" type="int" enum="RenderingServer.TextureType" />
+			<param index="1" name="format" type="int" enum="Image.Format" />
+			<param index="2" name="native_handle" type="int" />
+			<param index="3" name="width" type="int" />
+			<param index="4" name="height" type="int" />
+			<param index="5" name="depth" type="int" />
+			<param index="6" name="layers" type="int" default="1" />
+			<param index="7" name="layered_type" type="int" enum="RenderingServer.TextureLayeredType" default="0" />
+			<description>
+				Creates a texture based on a native handle that was created outside of Godot's renderer.
+				[b]Note:[/b] If using the rendering device renderer, using [method RenderingDevice.texture_create_from_extension] rather than this method is recommended. It will give you much more control over the texture's format and usage.
+			</description>
+		</method>
 		<method name="texture_get_format" qualifiers="const">
 			<return type="int" enum="Image.Format" />
 			<param index="0" name="texture" type="RID" />
@@ -4311,6 +4326,15 @@
 		<constant name="MAX_MESH_SURFACES" value="256">
 			The maximum number of surfaces a mesh can have.
 		</constant>
+		<constant name="TEXTURE_TYPE_2D" value="0" enum="TextureType">
+			2D texture.
+		</constant>
+		<constant name="TEXTURE_TYPE_LAYERED" value="1" enum="TextureType">
+			Layered texture.
+		</constant>
+		<constant name="TEXTURE_TYPE_3D" value="2" enum="TextureType">
+			3D texture.
+		</constant>
 		<constant name="TEXTURE_LAYERED_2D_ARRAY" value="0" enum="TextureLayeredType">
 			Array of 2-dimensional textures (see [Texture2DArray]).
 		</constant>

drivers/gles3/storage/texture_storage.cpp

@@ -729,7 +729,7 @@ void TextureStorage::texture_free(RID p_texture) {
 			}
 		}
 	} else {
-		must_free_data = t->tex_id != 0 && !t->is_external;
+		must_free_data = t->tex_id != 0 && !t->is_from_native_handle;
 	}
 	if (must_free_data) {
 		GLES3::Utilities::get_singleton()->texture_free_data(t->tex_id);
@@ -874,26 +874,28 @@ void TextureStorage::texture_proxy_initialize(RID p_texture, RID p_base) {
 	texture_owner.initialize_rid(p_texture, proxy_tex);
 }
 
-RID TextureStorage::texture_create_external(GLES3::Texture::Type p_type, Image::Format p_format, unsigned int p_image, int p_width, int p_height, int p_depth, int p_layers, RS::TextureLayeredType p_layered_type) {
+RID TextureStorage::texture_create_from_native_handle(RS::TextureType p_type, Image::Format p_format, uint64_t p_native_handle, int p_width, int p_height, int p_depth, int p_layers, RS::TextureLayeredType p_layered_type) {
 	Texture texture;
 	texture.active = true;
-	texture.is_external = true;
+	texture.is_from_native_handle = true;
-	texture.type = p_type;
 
 	switch (p_type) {
-		case Texture::TYPE_2D: {
+		case RS::TEXTURE_TYPE_2D: {
+			texture.type = Texture::TYPE_2D;
 			texture.target = GL_TEXTURE_2D;
 		} break;
-		case Texture::TYPE_3D: {
+		case RS::TEXTURE_TYPE_3D: {
+			texture.type = Texture::TYPE_3D;
 			texture.target = GL_TEXTURE_3D;
 		} break;
-		case Texture::TYPE_LAYERED: {
+		case RS::TEXTURE_TYPE_LAYERED: {
+			texture.type = Texture::TYPE_LAYERED;
 			texture.target = GL_TEXTURE_2D_ARRAY;
 		} break;
 	}
 
 	texture.real_format = texture.format = p_format;
-	texture.tex_id = p_image;
+	texture.tex_id = p_native_handle;
 	texture.alloc_width = texture.width = p_width;
 	texture.alloc_height = texture.height = p_height;
 	texture.depth = p_depth;

drivers/gles3/storage/texture_storage.h

@@ -146,7 +146,7 @@ struct Texture {
 	RID self;
 
 	bool is_proxy = false;
-	bool is_external = false;
+	bool is_from_native_handle = false;
 	bool is_render_target = false;
 
 	RID proxy_to;
@@ -209,7 +209,7 @@ struct Texture {
 	void copy_from(const Texture &o) {
 		proxy_to = o.proxy_to;
 		is_proxy = o.is_proxy;
-		is_external = o.is_external;
+		is_from_native_handle = o.is_from_native_handle;
 		width = o.width;
 		height = o.height;
 		alloc_width = o.alloc_width;
@@ -514,7 +514,7 @@ public:
 	virtual void texture_3d_initialize(RID p_texture, Image::Format, int p_width, int p_height, int p_depth, bool p_mipmaps, const Vector<Ref<Image>> &p_data) override;
 	virtual void texture_proxy_initialize(RID p_texture, RID p_base) override; //all slices, then all the mipmaps, must be coherent
 
-	RID texture_create_external(Texture::Type p_type, Image::Format p_format, unsigned int p_image, int p_width, int p_height, int p_depth, int p_layers, RS::TextureLayeredType p_layered_type = RS::TEXTURE_LAYERED_2D_ARRAY);
+	virtual RID texture_create_from_native_handle(RS::TextureType p_type, Image::Format p_format, uint64_t p_native_handle, int p_width, int p_height, int p_depth, int p_layers = 1, RS::TextureLayeredType p_layered_type = RS::TEXTURE_LAYERED_2D_ARRAY) override;
 
 	virtual void texture_2d_update(RID p_texture, const Ref<Image> &p_image, int p_layer = 0) override;
 	virtual void texture_3d_update(RID p_texture, const Vector<Ref<Image>> &p_data) override;

modules/openxr/extensions/platform/openxr_opengl_extension.cpp

@@ -240,8 +240,8 @@ bool OpenXROpenGLExtension::get_swapchain_image_data(XrSwapchain p_swapchain, in
 	Vector<RID> texture_rids;
 
 	for (uint64_t i = 0; i < swapchain_length; i++) {
-		RID texture_rid = texture_storage->texture_create_external(
+		RID texture_rid = texture_storage->texture_create_from_native_handle(
-				p_array_size == 1 ? GLES3::Texture::TYPE_2D : GLES3::Texture::TYPE_LAYERED,
+				p_array_size == 1 ? RS::TEXTURE_TYPE_2D : RS::TEXTURE_TYPE_LAYERED,
 				format,
 				images[i].image,
 				p_width,

modules/webxr/webxr_interface_js.cpp

@@ -561,8 +561,8 @@ RID WebXRInterfaceJS::_get_texture(unsigned int p_texture_id) {
 	uint32_t view_count = godot_webxr_get_view_count();
 	Size2 texture_size = get_render_target_size();
 
-	RID texture = texture_storage->texture_create_external(
+	RID texture = texture_storage->texture_create_from_native_handle(
-			view_count == 1 ? GLES3::Texture::TYPE_2D : GLES3::Texture::TYPE_LAYERED,
+			view_count == 1 ? RS::TEXTURE_TYPE_2D : RS::TEXTURE_TYPE_LAYERED,
 			Image::FORMAT_RGBA8,
 			p_texture_id,
 			(int)texture_size.width,

servers/rendering/dummy/storage/texture_storage.h

@@ -92,6 +92,8 @@ public:
 	virtual void texture_3d_initialize(RID p_texture, Image::Format, int p_width, int p_height, int p_depth, bool p_mipmaps, const Vector<Ref<Image>> &p_data) override{};
 	virtual void texture_proxy_initialize(RID p_texture, RID p_base) override{}; //all slices, then all the mipmaps, must be coherent
 
+	virtual RID texture_create_from_native_handle(RS::TextureType p_type, Image::Format p_format, uint64_t p_native_handle, int p_width, int p_height, int p_depth, int p_layers = 1, RS::TextureLayeredType p_layered_type = RS::TEXTURE_LAYERED_2D_ARRAY) override { return RID(); }
+
 	virtual void texture_2d_update(RID p_texture, const Ref<Image> &p_image, int p_layer = 0) override{};
 	virtual void texture_3d_update(RID p_texture, const Vector<Ref<Image>> &p_data) override{};
 	virtual void texture_proxy_update(RID p_proxy, RID p_base) override{};

servers/rendering/renderer_rd/storage_rd/texture_storage.cpp

@@ -1108,6 +1108,195 @@ void TextureStorage::texture_proxy_initialize(RID p_texture, RID p_base) {
 	tex->proxies.push_back(p_texture);
 }
 
+// Note: We make some big assumptions about format and usage. If developers need more control,
+// they should use RD::texture_create_from_extension() instead.
+RID TextureStorage::texture_create_from_native_handle(RS::TextureType p_type, Image::Format p_format, uint64_t p_native_handle, int p_width, int p_height, int p_depth, int p_layers, RS::TextureLayeredType p_layered_type) {
+	RD::TextureType type;
+	switch (p_type) {
+		case RS::TEXTURE_TYPE_2D:
+			type = RD::TEXTURE_TYPE_2D;
+			break;
+
+		case RS::TEXTURE_TYPE_3D:
+			type = RD::TEXTURE_TYPE_3D;
+			break;
+
+		case RS::TEXTURE_TYPE_LAYERED:
+			if (p_layered_type == RS::TEXTURE_LAYERED_2D_ARRAY) {
+				type = RD::TEXTURE_TYPE_2D_ARRAY;
+			} else if (p_layered_type == RS::TEXTURE_LAYERED_CUBEMAP) {
+				type = RD::TEXTURE_TYPE_CUBE;
+			} else if (p_layered_type == RS::TEXTURE_LAYERED_CUBEMAP_ARRAY) {
+				type = RD::TEXTURE_TYPE_CUBE_ARRAY;
+			} else {
+				// Arbitrary fallback.
+				type = RD::TEXTURE_TYPE_2D_ARRAY;
+			}
+			break;
+
+		default:
+			// Arbitrary fallback.
+			type = RD::TEXTURE_TYPE_2D;
+	}
+
+	// Only a rough conversion - see note above.
+	RD::DataFormat format;
+	switch (p_format) {
+		case Image::FORMAT_L8:
+		case Image::FORMAT_R8:
+			format = RD::DATA_FORMAT_R8_UNORM;
+			break;
+
+		case Image::FORMAT_LA8:
+		case Image::FORMAT_RG8:
+			format = RD::DATA_FORMAT_R8G8_UNORM;
+			break;
+
+		case Image::FORMAT_RGB8:
+			format = RD::DATA_FORMAT_R8G8B8_UNORM;
+			break;
+
+		case Image::FORMAT_RGBA8:
+			format = RD::DATA_FORMAT_R8G8B8A8_UNORM;
+			break;
+
+		case Image::FORMAT_RGBA4444:
+			format = RD::DATA_FORMAT_B4G4R4A4_UNORM_PACK16;
+			break;
+
+		case Image::FORMAT_RGB565:
+			format = RD::DATA_FORMAT_B5G6R5_UNORM_PACK16;
+			break;
+
+		case Image::FORMAT_RF:
+			format = RD::DATA_FORMAT_R32_SFLOAT;
+			break;
+
+		case Image::FORMAT_RGF:
+			format = RD::DATA_FORMAT_R32G32_SFLOAT;
+			break;
+
+		case Image::FORMAT_RGBF:
+			format = RD::DATA_FORMAT_R32G32B32_SFLOAT;
+			break;
+
+		case Image::FORMAT_RGBAF:
+			format = RD::DATA_FORMAT_R32G32B32_SFLOAT;
+			break;
+
+		case Image::FORMAT_RH:
+			format = RD::DATA_FORMAT_R16_SFLOAT;
+			break;
+
+		case Image::FORMAT_RGH:
+			format = RD::DATA_FORMAT_R16G16_SFLOAT;
+			break;
+
+		case Image::FORMAT_RGBH:
+			format = RD::DATA_FORMAT_R16G16B16_SFLOAT;
+			break;
+
+		case Image::FORMAT_RGBAH:
+			format = RD::DATA_FORMAT_R16G16B16A16_SFLOAT;
+			break;
+
+		case Image::FORMAT_RGBE9995:
+			format = RD::DATA_FORMAT_E5B9G9R9_UFLOAT_PACK32;
+			break;
+
+		case Image::FORMAT_DXT1:
+			format = RD::DATA_FORMAT_BC1_RGB_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_DXT3:
+			format = RD::DATA_FORMAT_BC2_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_DXT5:
+			format = RD::DATA_FORMAT_BC3_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_RGTC_R:
+			format = RD::DATA_FORMAT_BC4_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_RGTC_RG:
+			format = RD::DATA_FORMAT_BC5_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_BPTC_RGBA:
+			format = RD::DATA_FORMAT_BC7_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_BPTC_RGBF:
+			format = RD::DATA_FORMAT_BC6H_SFLOAT_BLOCK;
+			break;
+
+		case Image::FORMAT_BPTC_RGBFU:
+			format = RD::DATA_FORMAT_BC6H_UFLOAT_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC:
+			format = RD::DATA_FORMAT_ETC2_R8G8B8_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC2_R11:
+			format = RD::DATA_FORMAT_EAC_R11_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC2_R11S:
+			format = RD::DATA_FORMAT_EAC_R11_SNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC2_RG11:
+			format = RD::DATA_FORMAT_EAC_R11G11_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC2_RG11S:
+			format = RD::DATA_FORMAT_EAC_R11G11_SNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC2_RGB8:
+			format = RD::DATA_FORMAT_ETC2_R8G8B8_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC2_RGBA8:
+			format = RD::DATA_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC2_RGB8A1:
+			format = RD::DATA_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ETC2_RA_AS_RG:
+			format = RD::DATA_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_DXT5_RA_AS_RG:
+			format = RD::DATA_FORMAT_BC3_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ASTC_4x4:
+		case Image::FORMAT_ASTC_4x4_HDR:
+			format = RD::DATA_FORMAT_ASTC_4x4_UNORM_BLOCK;
+			break;
+
+		case Image::FORMAT_ASTC_8x8:
+		case Image::FORMAT_ASTC_8x8_HDR:
+			format = RD::DATA_FORMAT_ASTC_8x8_UNORM_BLOCK;
+			break;
+
+		default:
+			// Arbitrary fallback.
+			format = RD::DATA_FORMAT_R8G8B8A8_UNORM;
+	}
+
+	// Assumed to be a color attachment - see note above.
+	uint64_t usage_flags = RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_COLOR_ATTACHMENT_BIT;
+
+	return RD::get_singleton()->texture_create_from_extension(type, format, RD::TEXTURE_SAMPLES_1, usage_flags, p_native_handle, p_width, p_height, p_depth, p_layers);
+}
+
 void TextureStorage::_texture_2d_update(RID p_texture, const Ref<Image> &p_image, int p_layer, bool p_immediate) {
 	ERR_FAIL_COND(p_image.is_null() || p_image->is_empty());
 

servers/rendering/renderer_rd/storage_rd/texture_storage.h

@@ -493,6 +493,8 @@ public:
 	virtual void texture_3d_initialize(RID p_texture, Image::Format, int p_width, int p_height, int p_depth, bool p_mipmaps, const Vector<Ref<Image>> &p_data) override;
 	virtual void texture_proxy_initialize(RID p_texture, RID p_base) override; //all slices, then all the mipmaps, must be coherent
 
+	virtual RID texture_create_from_native_handle(RS::TextureType p_type, Image::Format p_format, uint64_t p_native_handle, int p_width, int p_height, int p_depth, int p_layers = 1, RS::TextureLayeredType p_layered_type = RS::TEXTURE_LAYERED_2D_ARRAY) override;
+
 	virtual void texture_2d_update(RID p_texture, const Ref<Image> &p_image, int p_layer = 0) override;
 	virtual void texture_3d_update(RID p_texture, const Vector<Ref<Image>> &p_data) override;
 	virtual void texture_proxy_update(RID p_proxy, RID p_base) override;

servers/rendering/rendering_server_default.h

@@ -179,6 +179,11 @@ public:
 	FUNCRIDTEX6(texture_3d, Image::Format, int, int, int, bool, const Vector<Ref<Image>> &)
 	FUNCRIDTEX1(texture_proxy, RID)
 
+	// Called directly, not through the command queue.
+	virtual RID texture_create_from_native_handle(TextureType p_type, Image::Format p_format, uint64_t p_native_handle, int p_width, int p_height, int p_depth, int p_layers = 1, TextureLayeredType p_layered_type = TEXTURE_LAYERED_2D_ARRAY) override {
+		return RSG::texture_storage->texture_create_from_native_handle(p_type, p_format, p_native_handle, p_width, p_height, p_depth, p_layers, p_layered_type);
+	}
+
 	//these go through command queue if they are in another thread
 	FUNC3(texture_2d_update, RID, const Ref<Image> &, int)
 	FUNC2(texture_3d_update, RID, const Vector<Ref<Image>> &)

servers/rendering/storage/texture_storage.h

@@ -71,6 +71,8 @@ public:
 	virtual void texture_3d_initialize(RID p_texture, Image::Format, int p_width, int p_height, int p_depth, bool p_mipmaps, const Vector<Ref<Image>> &p_data) = 0;
 	virtual void texture_proxy_initialize(RID p_texture, RID p_base) = 0; //all slices, then all the mipmaps, must be coherent
 
+	virtual RID texture_create_from_native_handle(RS::TextureType p_type, Image::Format p_format, uint64_t p_native_handle, int p_width, int p_height, int p_depth, int p_layers = 1, RS::TextureLayeredType p_layered_type = RS::TEXTURE_LAYERED_2D_ARRAY) = 0;
+
 	virtual void texture_2d_update(RID p_texture, const Ref<Image> &p_image, int p_layer = 0) = 0;
 	virtual void texture_3d_update(RID p_texture, const Vector<Ref<Image>> &p_data) = 0;
 	virtual void texture_proxy_update(RID p_proxy, RID p_base) = 0;

servers/rendering_server.cpp

@@ -2239,6 +2239,7 @@ void RenderingServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("texture_2d_layered_create", "layers", "layered_type"), &RenderingServer::_texture_2d_layered_create);
 	ClassDB::bind_method(D_METHOD("texture_3d_create", "format", "width", "height", "depth", "mipmaps", "data"), &RenderingServer::_texture_3d_create);
 	ClassDB::bind_method(D_METHOD("texture_proxy_create", "base"), &RenderingServer::texture_proxy_create);
+	ClassDB::bind_method(D_METHOD("texture_create_from_native_handle", "type", "format", "native_handle", "width", "height", "depth", "layers", "layered_type"), &RenderingServer::texture_create_from_native_handle, DEFVAL(1), DEFVAL(TEXTURE_LAYERED_2D_ARRAY));
 
 	ClassDB::bind_method(D_METHOD("texture_2d_update", "texture", "image", "layer"), &RenderingServer::texture_2d_update);
 	ClassDB::bind_method(D_METHOD("texture_3d_update", "texture", "data"), &RenderingServer::_texture_3d_update);
@@ -2265,6 +2266,10 @@ void RenderingServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("texture_get_rd_texture", "texture", "srgb"), &RenderingServer::texture_get_rd_texture, DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("texture_get_native_handle", "texture", "srgb"), &RenderingServer::texture_get_native_handle, DEFVAL(false));
 
+	BIND_ENUM_CONSTANT(TEXTURE_TYPE_2D);
+	BIND_ENUM_CONSTANT(TEXTURE_TYPE_LAYERED);
+	BIND_ENUM_CONSTANT(TEXTURE_TYPE_3D);
+
 	BIND_ENUM_CONSTANT(TEXTURE_LAYERED_2D_ARRAY);
 	BIND_ENUM_CONSTANT(TEXTURE_LAYERED_CUBEMAP);
 	BIND_ENUM_CONSTANT(TEXTURE_LAYERED_CUBEMAP_ARRAY);

servers/rendering_server.h

@@ -113,6 +113,12 @@ public:
 
 	/* TEXTURE API */
 
+	enum TextureType {
+		TEXTURE_TYPE_2D,
+		TEXTURE_TYPE_LAYERED,
+		TEXTURE_TYPE_3D,
+	};
+
 	enum TextureLayeredType {
 		TEXTURE_LAYERED_2D_ARRAY,
 		TEXTURE_LAYERED_CUBEMAP,
@@ -133,6 +139,8 @@ public:
 	virtual RID texture_3d_create(Image::Format, int p_width, int p_height, int p_depth, bool p_mipmaps, const Vector<Ref<Image>> &p_data) = 0; //all slices, then all the mipmaps, must be coherent
 	virtual RID texture_proxy_create(RID p_base) = 0;
 
+	virtual RID texture_create_from_native_handle(TextureType p_type, Image::Format p_format, uint64_t p_native_handle, int p_width, int p_height, int p_depth, int p_layers = 1, TextureLayeredType p_layered_type = TEXTURE_LAYERED_2D_ARRAY) = 0;
+
 	virtual void texture_2d_update(RID p_texture, const Ref<Image> &p_image, int p_layer = 0) = 0;
 	virtual void texture_3d_update(RID p_texture, const Vector<Ref<Image>> &p_data) = 0;
 	virtual void texture_proxy_update(RID p_texture, RID p_proxy_to) = 0;
@@ -1793,6 +1801,7 @@ private:
 };
 
 // Make variant understand the enums.
+VARIANT_ENUM_CAST(RenderingServer::TextureType);
 VARIANT_ENUM_CAST(RenderingServer::TextureLayeredType);
 VARIANT_ENUM_CAST(RenderingServer::CubeMapLayer);
 VARIANT_ENUM_CAST(RenderingServer::ShaderMode);