Expose texture_get_rd_texture

doc/classes/RenderingServer.xml

@@ -3024,6 +3024,14 @@
 			<description>
 			</description>
 		</method>
+		<method name="texture_get_rd_texture" qualifiers="const">
+			<return type="RID" />
+			<param index="0" name="texture" type="RID" />
+			<param index="1" name="srgb" type="bool" default="false" />
+			<description>
+				Returns a texture [RID] that can be used with [RenderingDevice].
+			</description>
+		</method>
 		<method name="texture_proxy_create">
 			<return type="RID" />
 			<param index="0" name="base" type="RID" />

drivers/gles3/storage/texture_storage.cpp

@@ -991,6 +991,10 @@ Size2 TextureStorage::texture_size_with_proxy(RID p_texture) {
 	}
 }
 
+RID TextureStorage::texture_get_rd_texture_rid(RID p_texture, bool p_srgb) const {
+	return RID();
+}
+
 void TextureStorage::texture_set_data(RID p_texture, const Ref<Image> &p_image, int p_layer) {
 	Texture *texture = texture_owner.get_or_null(p_texture);
 

drivers/gles3/storage/texture_storage.h

@@ -484,6 +484,8 @@ public:
 
 	virtual Size2 texture_size_with_proxy(RID p_proxy) override;
 
+	virtual RID texture_get_rd_texture_rid(RID p_texture, bool p_srgb = false) const override;
+
 	void texture_set_data(RID p_texture, const Ref<Image> &p_image, int p_layer = 0);
 	void texture_set_data_partial(RID p_texture, const Ref<Image> &p_image, int src_x, int src_y, int src_w, int src_h, int dst_x, int dst_y, int p_dst_mip, int p_layer = 0);
 	//Ref<Image> texture_get_data(RID p_texture, int p_layer = 0) const;

servers/rendering/dummy/storage/texture_storage.h

@@ -126,6 +126,8 @@ public:
 
 	virtual Size2 texture_size_with_proxy(RID p_proxy) override { return Size2(); };
 
+	virtual RID texture_get_rd_texture_rid(RID p_texture, bool p_srgb = false) const override { return RID(); };
+
 	/* DECAL API */
 	virtual RID decal_allocate() override { return RID(); }
 	virtual void decal_initialize(RID p_rid) override {}

servers/rendering/renderer_rd/storage_rd/texture_storage.cpp

@@ -1336,6 +1336,13 @@ Size2 TextureStorage::texture_size_with_proxy(RID p_proxy) {
 	return texture_2d_get_size(p_proxy);
 }
 
+RID TextureStorage::texture_get_rd_texture_rid(RID p_texture, bool p_srgb) const {
+	Texture *tex = texture_owner.get_or_null(p_texture);
+	ERR_FAIL_COND_V(!tex, RID());
+
+	return (p_srgb && tex->rd_texture_srgb.is_valid()) ? tex->rd_texture_srgb : tex->rd_texture;
+}
+
 Ref<Image> TextureStorage::_validate_texture_format(const Ref<Image> &p_image, TextureToRDFormat &r_format) {
 	Ref<Image> image = p_image->duplicate();
 

servers/rendering/renderer_rd/storage_rd/texture_storage.h

@@ -491,6 +491,8 @@ public:
 
 	virtual Size2 texture_size_with_proxy(RID p_proxy) override;
 
+	virtual RID texture_get_rd_texture_rid(RID p_texture, bool p_srgb = false) const override;
+
 	//internal usage
 	_FORCE_INLINE_ TextureType texture_get_type(RID p_texture) {
 		RendererRD::TextureStorage::Texture *tex = texture_owner.get_or_null(p_texture);

servers/rendering/rendering_server_default.h

@@ -212,6 +212,7 @@ public:
 	FUNC1(texture_debug_usage, List<TextureInfo> *)
 
 	FUNC2(texture_set_force_redraw_if_visible, RID, bool)
+	FUNC2RC(RID, texture_get_rd_texture_rid, RID, bool)
 
 	/* SHADER API */
 

servers/rendering/storage/texture_storage.h

@@ -100,6 +100,8 @@ public:
 
 	virtual Size2 texture_size_with_proxy(RID p_proxy) = 0;
 
+	virtual RID texture_get_rd_texture_rid(RID p_texture, bool p_srgb = false) const = 0;
+
 	/* Decal API */
 	virtual RID decal_allocate() = 0;
 	virtual void decal_initialize(RID p_rid) = 0;

servers/rendering_server.cpp

@@ -1691,6 +1691,7 @@ void RenderingServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("texture_get_path", "texture"), &RenderingServer::texture_get_path);
 
 	ClassDB::bind_method(D_METHOD("texture_set_force_redraw_if_visible", "texture", "enable"), &RenderingServer::texture_set_force_redraw_if_visible);
+	ClassDB::bind_method(D_METHOD("texture_get_rd_texture", "texture", "srgb"), &RenderingServer::texture_get_rd_texture_rid, DEFVAL(false));
 
 	BIND_ENUM_CONSTANT(TEXTURE_LAYERED_2D_ARRAY);
 	BIND_ENUM_CONSTANT(TEXTURE_LAYERED_CUBEMAP);

servers/rendering_server.h

@@ -157,6 +157,8 @@ public:
 
 	virtual void texture_set_force_redraw_if_visible(RID p_texture, bool p_enable) = 0;
 
+	virtual RID texture_get_rd_texture_rid(RID p_texture, bool p_srgb = false) const = 0;
+
 	/* SHADER API */
 
 	enum ShaderMode {