From f801e16b787f033cea4e473d69b54fe65248a439 Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sun, 25 Mar 2012 11:50:29 +0300
Subject: [PATCH] Texture cache -> Media cache WIP

---
 src/client.cpp     | 129 ++++++++++++++------------
 src/client.h       |  17 ++--
 src/clientserver.h |  18 ++--
 src/filecache.cpp  |  43 ++++-----
 src/filecache.h    |  17 +---
 src/game.cpp       |   9 +-
 src/server.cpp     | 224 +++++++++++++++++++++++----------------------
 src/server.h       |  19 ++--
 8 files changed, 235 insertions(+), 241 deletions(-)

diff --git a/src/client.cpp b/src/client.cpp
index 3a08b25c2..56555804e 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -41,16 +41,16 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "filecache.h"
 #include "sound.h"
 
-static std::string getTextureCacheDir()
+static std::string getMediaCacheDir()
 {
-	return porting::path_user + DIR_DELIM + "cache" + DIR_DELIM + "textures";
+	return porting::path_user + DIR_DELIM + "cache" + DIR_DELIM + "media";
 }
 
-struct TextureRequest
+struct MediaRequest
 {
 	std::string name;
 
-	TextureRequest(const std::string &name_=""):
+	MediaRequest(const std::string &name_=""):
 		name(name_)
 	{}
 };
@@ -256,9 +256,9 @@ Client::Client(
 	m_map_seed(0),
 	m_password(password),
 	m_access_denied(false),
-	m_texture_cache(getTextureCacheDir()),
-	m_texture_receive_progress(0),
-	m_textures_received(false),
+	m_media_cache(getMediaCacheDir()),
+	m_media_receive_progress(0),
+	m_media_received(false),
 	m_itemdef_received(false),
 	m_nodedef_received(false),
 	m_time_of_day_set(false),
@@ -1391,7 +1391,7 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 		event.deathscreen.camera_point_target_z = camera_point_target.Z;
 		m_client_event_queue.push_back(event);
 	}
-	else if(command == TOCLIENT_ANNOUNCE_TEXTURES)
+	else if(command == TOCLIENT_ANNOUNCE_MEDIA)
 	{
 		io::IFileSystem *irrfs = m_device->getFileSystem();
 		video::IVideoDriver *vdrv = m_device->getVideoDriver();
@@ -1403,33 +1403,36 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 		// updating content definitions
 		assert(!m_mesh_update_thread.IsRunning());
 
-		int num_textures = readU16(is);
+		int num_files = readU16(is);
+		
+		verbosestream<<"Client received TOCLIENT_ANNOUNCE_MEDIA ("
+				<<num_files<<" files)"<<std::endl;
 
-		core::list<TextureRequest> texture_requests;
+		core::list<MediaRequest> file_requests;
 
-		for(int i=0; i<num_textures; i++){
+		for(int i=0; i<num_files; i++){
 
-			bool texture_found = false;
+			bool file_found = false;
 
-			//read texture from cache
+			//read file from cache
 			std::string name = deSerializeString(is);
-			std::string sha1_texture = deSerializeString(is);
+			std::string sha1_file = deSerializeString(is);
 
-			// if name contains illegal characters, ignore the texture
+			// if name contains illegal characters, ignore the file
 			if(!string_allowed(name, TEXTURENAME_ALLOWED_CHARS)){
-				errorstream<<"Client: ignoring illegal texture name "
+				errorstream<<"Client: ignoring illegal file name "
 						<<"sent by server: \""<<name<<"\""<<std::endl;
 				continue;
 			}
 
-			std::string sha1_decoded = base64_decode(sha1_texture);
+			std::string sha1_decoded = base64_decode(sha1_file);
 			std::ostringstream tmp_os(std::ios_base::binary);
-			bool tex_in_cache = m_texture_cache.loadByChecksum(name,
-					tmp_os, sha1_decoded);
-			m_texture_name_sha1_map.set(name, sha1_decoded);
-
-			if(tex_in_cache) {
+			bool file_in_cache = m_media_cache.loadByChecksum(sha1_decoded,
+					tmp_os);
+			m_media_name_sha1_map.set(name, sha1_decoded);
 
+			if(file_in_cache)
+			{
 				SHA1 sha1;
 				sha1.addBytes(tmp_os.str().c_str(), tmp_os.str().length());
 
@@ -1437,7 +1440,7 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 
 				std::string digest_string = base64_encode(digest, 20);
 
-				if (digest_string == sha1_texture) {
+				if (digest_string == sha1_file) {
 					// Silly irrlicht's const-incorrectness
 					Buffer<char> data_rw(tmp_os.str().c_str(), tmp_os.str().size());
 
@@ -1449,7 +1452,7 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 					video::IImage *img = vdrv->createImageFromFile(rfile);
 					if(!img){
 						infostream<<"Client: Cannot create image from data of "
-								<<"received texture \""<<name<<"\""<<std::endl;
+								<<"received file \""<<name<<"\""<<std::endl;
 						rfile->drop();
 					}
 					else {
@@ -1457,22 +1460,22 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 						img->drop();
 						rfile->drop();
 
-						texture_found = true;
+						file_found = true;
 					}
 				}
 				else {
-					infostream<<"Client::Texture cached sha1 hash not matching server hash: "
-							<<name << ": server ->"<<sha1_texture <<" client -> "<<digest_string<<std::endl;
+					infostream<<"Client::Media cached sha1 hash not matching server hash: "
+							<<name << ": server ->"<<sha1_file <<" client -> "<<digest_string<<std::endl;
 				}
 
 				free(digest);
 			}
 
-			//add texture request
-			if (!texture_found) {
-				infostream<<"Client: Adding texture to request list: \""
+			//add file request
+			if (!file_found) {
+				infostream<<"Client: Adding file to request list: \""
 						<<name<<"\""<<std::endl;
-				texture_requests.push_back(TextureRequest(name));
+				file_requests.push_back(MediaRequest(name));
 			}
 
 		}
@@ -1482,11 +1485,11 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 		m_client_event_queue.push_back(event);
 
 
-		//send Texture request
+		//send Media request
 		/*
 				u16 command
-				u16 number of textures requested
-				for each texture {
+				u16 number of files requested
+				for each file {
 					u16 length of name
 					string name
 				}
@@ -1496,15 +1499,15 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 
 
 		// Write command
-		writeU16(buf, TOSERVER_REQUEST_TEXTURES);
+		writeU16(buf, TOSERVER_REQUEST_MEDIA);
 		os.write((char*)buf, 2);
 
-		writeU16(buf,texture_requests.size());
+		writeU16(buf,file_requests.size());
 		os.write((char*)buf, 2);
 
 
-		for(core::list<TextureRequest>::Iterator i = texture_requests.begin();
-				i != texture_requests.end(); i++) {
+		for(core::list<MediaRequest>::Iterator i = file_requests.begin();
+				i != file_requests.end(); i++) {
 			os<<serializeString(i->name);
 		}
 
@@ -1513,10 +1516,13 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 		SharedBuffer<u8> data((u8*)s.c_str(), s.size());
 		// Send as reliable
 		Send(0, data, true);
-		infostream<<"Client: Sending request list to server " <<std::endl;
+		infostream<<"Client: Sending media request list to server ("
+				<<file_requests.size()<<" files)"<<std::endl;
 	}
-	else if(command == TOCLIENT_TEXTURES)
+	else if(command == TOCLIENT_MEDIA)
 	{
+		verbosestream<<"Client received TOCLIENT_MEDIA"<<std::endl;
+
 		io::IFileSystem *irrfs = m_device->getFileSystem();
 		video::IVideoDriver *vdrv = m_device->getVideoDriver();
 
@@ -1529,10 +1535,10 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 
 		/*
 			u16 command
-			u16 total number of texture bunches
+			u16 total number of file bunches
 			u16 index of this bunch
-			u32 number of textures in this bunch
-			for each texture {
+			u32 number of files in this bunch
+			for each file {
 				u16 length of name
 				string name
 				u32 length of data
@@ -1541,20 +1547,20 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 		*/
 		int num_bunches = readU16(is);
 		int bunch_i = readU16(is);
-		m_texture_receive_progress = (float)bunch_i / (float)(num_bunches - 1);
+		m_media_receive_progress = (float)bunch_i / (float)(num_bunches - 1);
 		if(bunch_i == num_bunches - 1)
-			m_textures_received = true;
-		int num_textures = readU32(is);
-		infostream<<"Client: Received textures: bunch "<<bunch_i<<"/"
-				<<num_bunches<<" textures="<<num_textures
+			m_media_received = true;
+		int num_files = readU32(is);
+		infostream<<"Client: Received files: bunch "<<bunch_i<<"/"
+				<<num_bunches<<" files="<<num_files
 				<<" size="<<datasize<<std::endl;
-		for(int i=0; i<num_textures; i++){
+		for(int i=0; i<num_files; i++){
 			std::string name = deSerializeString(is);
 			std::string data = deSerializeLongString(is);
 
-			// if name contains illegal characters, ignore the texture
+			// if name contains illegal characters, ignore the file
 			if(!string_allowed(name, TEXTURENAME_ALLOWED_CHARS)){
-				errorstream<<"Client: ignoring illegal texture name "
+				errorstream<<"Client: ignoring illegal file name "
 						<<"sent by server: \""<<name<<"\""<<std::endl;
 				continue;
 			}
@@ -1569,22 +1575,25 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 			video::IImage *img = vdrv->createImageFromFile(rfile);
 			if(!img){
 				errorstream<<"Client: Cannot create image from data of "
-						<<"received texture \""<<name<<"\""<<std::endl;
+						<<"received file \""<<name<<"\""<<std::endl;
 				rfile->drop();
 				continue;
 			}
 
-			fs::CreateAllDirs(getTextureCacheDir());
+			bool did = fs::CreateAllDirs(getMediaCacheDir());
+			if(!did){
+				errorstream<<"Could not create media cache directory"
+						<<std::endl;
+			}
 
 			{
 				core::map<std::string, std::string>::Node *n;
-				n = m_texture_name_sha1_map.find(name);
+				n = m_media_name_sha1_map.find(name);
 				if(n == NULL)
-					errorstream<<"The server sent a texture that has not been announced."
-						<<std::endl;
+					errorstream<<"The server sent a file that has not "
+						<<"been announced."<<std::endl;
 				else
-					m_texture_cache.updateByChecksum(name,
-							data, n->getValue());
+					m_media_cache.updateByChecksum(n->getValue(), data);
 			}
 
 			m_tsrc->insertSourceImage(name, img);
@@ -2358,11 +2367,11 @@ void Client::afterContentReceived()
 {
 	assert(m_itemdef_received);
 	assert(m_nodedef_received);
-	assert(m_textures_received);
+	assert(m_media_received);
 
 	// remove the information about which checksum each texture
 	// ought to have
-	m_texture_name_sha1_map.clear();
+	m_media_name_sha1_map.clear();
 
 	// Rebuild inherited images and recreate textures
 	m_tsrc->rebuildImagesAndTextures();
diff --git a/src/client.h b/src/client.h
index 8d7597e80..b15dbed54 100644
--- a/src/client.h
+++ b/src/client.h
@@ -290,11 +290,11 @@ public:
 	std::wstring accessDeniedReason()
 	{ return m_access_denied_reason; }
 
-	float textureReceiveProgress()
-	{ return m_texture_receive_progress; }
+	float mediaReceiveProgress()
+	{ return m_media_receive_progress; }
 
 	bool texturesReceived()
-	{ return m_textures_received; }
+	{ return m_media_received; }
 	bool itemdefReceived()
 	{ return m_itemdef_received; }
 	bool nodedefReceived()
@@ -367,12 +367,11 @@ private:
 	bool m_access_denied;
 	std::wstring m_access_denied_reason;
 	Queue<ClientEvent> m_client_event_queue;
-	FileCache m_texture_cache;
-	// a map of the name and SHA1 checksum of each texture;
-	// cleared after content has been recieved
-	core::map<std::string, std::string> m_texture_name_sha1_map;
-	float m_texture_receive_progress;
-	bool m_textures_received;
+	FileCache m_media_cache;
+	// Mapping from media file name to SHA1 checksum
+	core::map<std::string, std::string> m_media_name_sha1_map;
+	float m_media_receive_progress;
+	bool m_media_received;
 	bool m_itemdef_received;
 	bool m_nodedef_received;
 	friend class FarMesh;
diff --git a/src/clientserver.h b/src/clientserver.h
index 9cbb7a685..8ac0aa877 100644
--- a/src/clientserver.h
+++ b/src/clientserver.h
@@ -28,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	PROTOCOL_VERSION 3:
 		Base for writing changes here
 	PROTOCOL_VERSION 4:
-		Add TOCLIENT_TEXTURES
+		Add TOCLIENT_MEDIA
 		Add TOCLIENT_TOOLDEF
 		Add TOCLIENT_NODEDEF
 		Add TOCLIENT_CRAFTITEMDEF
@@ -215,13 +215,13 @@ enum ToClientCommand
 		v3f1000 camera point target (to point the death cause or whatever)
 	*/
 
-	TOCLIENT_TEXTURES = 0x38,
+	TOCLIENT_MEDIA = 0x38,
 	/*
 		u16 command
 		u16 total number of texture bunches
 		u16 index of this bunch
-		u32 number of textures in this bunch
-		for each texture {
+		u32 number of files in this bunch
+		for each file {
 			u16 length of name
 			string name
 			u32 length of data
@@ -250,11 +250,11 @@ enum ToClientCommand
 		serialized CraftiItemDefManager
 	*/
 
-	TOCLIENT_ANNOUNCE_TEXTURES = 0x3c,
+	TOCLIENT_ANNOUNCE_MEDIA = 0x3c,
 
 	/*
 		u16 command
-		u32 number of textures
+		u32 number of files
 		for each texture {
 			u16 length of name
 			string name
@@ -468,11 +468,11 @@ enum ToServerCommand
 		s32[len] sound_id
 	*/
 
-	TOSERVER_REQUEST_TEXTURES = 0x40,
+	TOSERVER_REQUEST_MEDIA = 0x40,
 	/*
 		u16 command
-		u16 number of textures requested
-		for each texture {
+		u16 number of files requested
+		for each file {
 			u16 length of name
 			string name
 		}
diff --git a/src/filecache.cpp b/src/filecache.cpp
index 28d6bbc80..5ba8ef5cc 100644
--- a/src/filecache.cpp
+++ b/src/filecache.cpp
@@ -28,14 +28,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <string>
 #include <iostream>
 
-bool FileCache::loadByPath(const std::string &name, std::ostream &os,
-		const std::string &path)
+bool FileCache::loadByPath(const std::string &path, std::ostream &os)
 {
 	std::ifstream fis(path.c_str(), std::ios_base::binary);
 
 	if(!fis.good()){
-		infostream<<"FileCache: File not found in cache: "
-			<<name << " expected it at: "<<path<<std::endl;
+		verbosestream<<"FileCache: File not found in cache: "
+    			<<path<<std::endl;
 		return false;
 	}
 
@@ -53,15 +52,14 @@ bool FileCache::loadByPath(const std::string &name, std::ostream &os,
 		}
 	}
 	if(bad){
-		infostream<<"FileCache: Failed to read file from cache: \""
-			<<path<<"\""<<std::endl;
+		errorstream<<"FileCache: Failed to read file from cache: \""
+		    	<<path<<"\""<<std::endl;
 	}
 
 	return !bad;
 }
 
-bool FileCache::updateByPath(const std::string &name, const std::string &data,
-		const std::string &path)
+bool FileCache::updateByPath(const std::string &path, const std::string &data)
 {
 	std::ofstream file(path.c_str(), std::ios_base::binary |
 			std::ios_base::trunc);
@@ -69,7 +67,7 @@ bool FileCache::updateByPath(const std::string &name, const std::string &data,
 	if(!file.good())
 	{
 		errorstream<<"FileCache: Can't write to file at "
-			<<path<<std::endl;
+    			<<path<<std::endl;
 		return false;
 	}
 
@@ -82,36 +80,31 @@ bool FileCache::updateByPath(const std::string &name, const std::string &data,
 bool FileCache::loadByName(const std::string &name, std::ostream &os)
 {
 	std::string path = m_dir + DIR_DELIM + name;
-	return loadByPath(name, os, path);
+	return loadByPath(path, os);
 }
 
 
 bool FileCache::updateByName(const std::string &name, const std::string &data)
 {
 	std::string path = m_dir + DIR_DELIM + name;
-	return updateByPath(name, data, path);
+	return updateByPath(path, data);
 }
 
-std::string FileCache::getPathFromChecksum(const std::string &name,
-		const std::string &checksum)
+std::string FileCache::getPathFromChecksum(const std::string &checksum)
 {
 	std::string checksum_hex = hex_encode(checksum.c_str(), checksum.length());
-	size_t dot = name.find_last_of('.');;
-	std::string ext = (dot == std::string::npos)? "" :
-		name.substr(dot, std::string::npos);
-	return m_dir + DIR_DELIM + checksum_hex + ext;
+	return m_dir + DIR_DELIM + checksum_hex;
 }
 
-bool FileCache::loadByChecksum(const std::string &name, std::ostream &os,
-		const std::string &checksum)
+bool FileCache::loadByChecksum(const std::string &checksum, std::ostream &os)
 {
-	std::string path = getPathFromChecksum(name, checksum);
-	return loadByPath(name, os, path);
+	std::string path = getPathFromChecksum(checksum);
+	return loadByPath(path, os);
 }
 
-bool FileCache::updateByChecksum(const std::string &name,
-		const std::string &data, const std::string &checksum)
+bool FileCache::updateByChecksum(const std::string &checksum,
+		const std::string &data)
 {
-	std::string path = getPathFromChecksum(name, checksum);
-	return updateByPath(name, data, path);
+	std::string path = getPathFromChecksum(checksum);
+	return updateByPath(path, data);
 }
diff --git a/src/filecache.h b/src/filecache.h
index 35ae9aa7d..ae3fbc602 100644
--- a/src/filecache.h
+++ b/src/filecache.h
@@ -52,28 +52,21 @@ public:
 		Loads a file based on a check sum, which may be any kind of
 		rather unique byte sequence. Returns true, if the file could
 		be written into os, false otherwise.
-		A file name is required to give the disk file a name that
-		has the right file name extension (e.g. ".png").
 	*/
-	bool loadByChecksum(const std::string &name, std::ostream &os,
-			const std::string &checksum);
+	bool loadByChecksum(const std::string &checksum, std::ostream &os);
 
 	/*
 		Stores a file in the cache based on its checksum.
 		Returns true on success, false otherwise.
 	*/
-	bool updateByChecksum(const std::string &name, const std::string &data,
-			const std::string &checksum);
+	bool updateByChecksum(const std::string &checksum, const std::string &data);
 
 private:
 	std::string m_dir;
 
-	bool loadByPath(const std::string &name, std::ostream &os,
-			const std::string &path);
-	bool updateByPath(const std::string &name, const std::string &data,
-			const std::string &path);
-	std::string getPathFromChecksum(const std::string &name,
-			const std::string &checksum);
+	bool loadByPath(const std::string &path, std::ostream &os);
+	bool updateByPath(const std::string &path, const std::string &data);
+	std::string getPathFromChecksum(const std::string &checksum);
 };
 
 #endif
diff --git a/src/game.cpp b/src/game.cpp
index 1dcda043e..eeb5d02e4 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -56,7 +56,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "clientmap.h"
 #include "sky.h"
 #include "sound.h"
-#if USE_AUDIO
+#if USE_SOUND
 	#include "sound_openal.h"
 #endif
 #include "event_manager.h"
@@ -953,7 +953,7 @@ void the_game(
 	// Sound manager
 	ISoundManager *sound = NULL;
 	bool sound_is_dummy = false;
-#if USE_AUDIO
+#if USE_SOUND
 	infostream<<"Attempting to use OpenAL audio"<<std::endl;
 	sound = createOpenALSoundManager(&soundfetcher);
 	if(!sound)
@@ -1163,9 +1163,8 @@ void the_game(
 			ss<<L" Item definitions\n";
 			ss<<(client.nodedefReceived()?L"[X]":L"[  ]");
 			ss<<L" Node definitions\n";
-			//ss<<(client.texturesReceived()?L"[X]":L"[  ]");
-			ss<<L"["<<(int)(client.textureReceiveProgress()*100+0.5)<<L"%] ";
-			ss<<L" Textures\n";
+			ss<<L"["<<(int)(client.mediaReceiveProgress()*100+0.5)<<L"%] ";
+			ss<<L" Media\n";
 
 			draw_load_screen(ss.str(), driver, font);
 			
diff --git a/src/server.cpp b/src/server.cpp
index 745e55f83..d6bb14f95 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -957,7 +957,7 @@ Server::Server(
 	}
 	
 	// Read Textures and calculate sha1 sums
-	PrepareTextures();
+	fillMediaCache();
 
 	// Apply item aliases in the node definition manager
 	m_nodedef->updateAliases(m_itemdef);
@@ -2183,7 +2183,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 		SendNodeDef(m_con, peer_id, m_nodedef);
 		
 		// Send texture announcement
-		SendTextureAnnouncement(peer_id);
+		sendMediaAnnouncement(peer_id);
 		
 		// Send player info to all players
 		//SendPlayerInfos();
@@ -2842,29 +2842,28 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 		// ActiveObject is added to environment in AsyncRunStep after
 		// the previous addition has been succesfully removed
 	}
-	else if(command == TOSERVER_REQUEST_TEXTURES) {
+	else if(command == TOSERVER_REQUEST_MEDIA) {
 		std::string datastring((char*)&data[2], datasize-2);
 		std::istringstream is(datastring, std::ios_base::binary);
 		
-		
-		core::list<TextureRequest> tosend;
-		u16 numtextures = readU16(is);
+		core::list<MediaRequest> tosend;
+		u16 numfiles = readU16(is);
 
-		infostream<<"Sending "<<numtextures<<" textures to "
+		infostream<<"Sending "<<numfiles<<" files to "
 				<<getPlayerName(peer_id)<<std::endl;
-		verbosestream<<"TOSERVER_REQUEST_TEXTURES: "<<std::endl;
+		verbosestream<<"TOSERVER_REQUEST_MEDIA: "<<std::endl;
 
-		for(int i = 0; i < numtextures; i++) {
+		for(int i = 0; i < numfiles; i++) {
 			std::string name = deSerializeString(is);
-			tosend.push_back(TextureRequest(name));
-			verbosestream<<"TOSERVER_REQUEST_TEXTURES: requested texture "
+			tosend.push_back(MediaRequest(name));
+			verbosestream<<"TOSERVER_REQUEST_MEDIA: requested file "
 					<<name<<std::endl;
 		}
 
-		SendTexturesRequested(peer_id, tosend);
+		sendRequestedMedia(peer_id, tosend);
 
 		// Now the client should know about everything
-		// (definitions and textures)
+		// (definitions and files)
 		getClient(peer_id)->definitions_sent = true;
 	}
 	else if(command == TOSERVER_INTERACT)
@@ -3928,32 +3927,32 @@ void Server::SendBlocks(float dtime)
 	}
 }
 
-void Server::PrepareTextures()
+void Server::fillMediaCache()
 {
 	DSTACK(__FUNCTION_NAME);
 
-	infostream<<"Server: Calculating texture checksums"<<std::endl;
+	infostream<<"Server: Calculating file checksums"<<std::endl;
 
 	for(core::list<ModSpec>::Iterator i = m_mods.begin();
 			i != m_mods.end(); i++){
 		const ModSpec &mod = *i;
-		std::string texturepath = mod.path + DIR_DELIM + "textures";
-		std::vector<fs::DirListNode> dirlist = fs::GetDirListing(texturepath);
+		std::string filepath = mod.path + DIR_DELIM + "textures";
+		std::vector<fs::DirListNode> dirlist = fs::GetDirListing(filepath);
 		for(u32 j=0; j<dirlist.size(); j++){
 			if(dirlist[j].dir) // Ignode dirs
 				continue;
 			std::string tname = dirlist[j].name;
-			// if name contains illegal characters, ignore the texture
+			// if name contains illegal characters, ignore the file
 			if(!string_allowed(tname, TEXTURENAME_ALLOWED_CHARS)){
-				errorstream<<"Server: ignoring illegal texture name: \""
+				errorstream<<"Server: ignoring illegal file name: \""
 						<<tname<<"\""<<std::endl;
 				continue;
 			}
-			std::string tpath = texturepath + DIR_DELIM + tname;
+			std::string tpath = filepath + DIR_DELIM + tname;
 			// Read data
 			std::ifstream fis(tpath.c_str(), std::ios_base::binary);
 			if(fis.good() == false){
-				errorstream<<"Server::PrepareTextures(): Could not open \""
+				errorstream<<"Server::fillMediaCache(): Could not open \""
 						<<tname<<"\" for reading"<<std::endl;
 				continue;
 			}
@@ -3972,12 +3971,12 @@ void Server::PrepareTextures()
 				}
 			}
 			if(bad){
-				errorstream<<"Server::PrepareTextures(): Failed to read \""
+				errorstream<<"Server::fillMediaCache(): Failed to read \""
 						<<tname<<"\""<<std::endl;
 				continue;
 			}
 			if(tmp_os.str().length() == 0){
-				errorstream<<"Server::PrepareTextures(): Empty file \""
+				errorstream<<"Server::fillMediaCache(): Empty file \""
 						<<tpath<<"\""<<std::endl;
 				continue;
 			}
@@ -3991,60 +3990,60 @@ void Server::PrepareTextures()
 			free(digest);
 
 			// Put in list
-			this->m_Textures[tname] = TextureInformation(tpath,digest_string);
+			this->m_media[tname] = MediaInfo(tpath,digest_string);
 			verbosestream<<"Server: sha1 for "<<tname<<"\tis "<<std::endl;
 		}
 	}
 }
 
-struct SendableTextureAnnouncement
-	{
-		std::string name;
-		std::string sha1_digest;
+struct SendableMediaAnnouncement
+{
+	std::string name;
+	std::string sha1_digest;
 
-		SendableTextureAnnouncement(const std::string name_="",
-				const std::string sha1_digest_=""):
-			name(name_),
-			sha1_digest(sha1_digest_)
-		{
-		}
-	};
+	SendableMediaAnnouncement(const std::string name_="",
+			const std::string sha1_digest_=""):
+		name(name_),
+		sha1_digest(sha1_digest_)
+	{}
+};
 
-void Server::SendTextureAnnouncement(u16 peer_id){
+void Server::sendMediaAnnouncement(u16 peer_id)
+{
 	DSTACK(__FUNCTION_NAME);
 
-	verbosestream<<"Server: Announcing textures to id("<<peer_id<<")"
+	verbosestream<<"Server: Announcing files to id("<<peer_id<<")"
 			<<std::endl;
 
-	core::list<SendableTextureAnnouncement> texture_announcements;
-
-	for (std::map<std::string,TextureInformation>::iterator i = m_Textures.begin();i != m_Textures.end(); i++ ) {
+	core::list<SendableMediaAnnouncement> file_announcements;
 
+	for(std::map<std::string, MediaInfo>::iterator i = m_media.begin();
+			i != m_media.end(); i++){
 		// Put in list
-		texture_announcements.push_back(
-				SendableTextureAnnouncement(i->first, i->second.sha1_digest));
+		file_announcements.push_back(
+				SendableMediaAnnouncement(i->first, i->second.sha1_digest));
 	}
 
-	//send announcements
+	// Make packet
+	std::ostringstream os(std::ios_base::binary);
 
 	/*
 		u16 command
-		u32 number of textures
+		u32 number of files
 		for each texture {
 			u16 length of name
 			string name
-			u16 length of digest string
+			u16 length of sha1_digest
 			string sha1_digest
 		}
 	*/
-	std::ostringstream os(std::ios_base::binary);
+	
+	writeU16(os, TOCLIENT_ANNOUNCE_MEDIA);
+	writeU16(os, file_announcements.size());
 
-	writeU16(os, 	TOCLIENT_ANNOUNCE_TEXTURES);
-	writeU16(os, texture_announcements.size());
-
-	for(core::list<SendableTextureAnnouncement>::Iterator
-			j = texture_announcements.begin();
-			j != texture_announcements.end(); j++){
+	for(core::list<SendableMediaAnnouncement>::Iterator
+			j = file_announcements.begin();
+			j != file_announcements.end(); j++){
 		os<<serializeString(j->name);
 		os<<serializeString(j->sha1_digest);
 	}
@@ -4058,13 +4057,13 @@ void Server::SendTextureAnnouncement(u16 peer_id){
 
 }
 
-struct SendableTexture
+struct SendableMedia
 {
 	std::string name;
 	std::string path;
 	std::string data;
 
-	SendableTexture(const std::string &name_="", const std::string path_="",
+	SendableMedia(const std::string &name_="", const std::string path_="",
 			const std::string &data_=""):
 		name(name_),
 		path(path_),
@@ -4072,36 +4071,40 @@ struct SendableTexture
 	{}
 };
 
-void Server::SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend) {
+void Server::sendRequestedMedia(u16 peer_id,
+		const core::list<MediaRequest> &tosend)
+{
 	DSTACK(__FUNCTION_NAME);
 
-	verbosestream<<"Server::SendTexturesRequested(): "
-			<<"Sending textures to client"<<std::endl;
+	verbosestream<<"Server::sendRequestedMedia(): "
+			<<"Sending files to client"<<std::endl;
 
-	/* Read textures */
+	/* Read files */
 
 	// Put 5kB in one bunch (this is not accurate)
 	u32 bytes_per_bunch = 5000;
 
-	core::array< core::list<SendableTexture> > texture_bunches;
-	texture_bunches.push_back(core::list<SendableTexture>());
+	core::array< core::list<SendableMedia> > file_bunches;
+	file_bunches.push_back(core::list<SendableMedia>());
 
-	u32 texture_size_bunch_total = 0;
+	u32 file_size_bunch_total = 0;
 
-	for(core::list<TextureRequest>::Iterator i = tosend.begin(); i != tosend.end(); i++) {
-		if(m_Textures.find(i->name) == m_Textures.end()){
-			errorstream<<"Server::SendTexturesRequested(): Client asked for "
-					<<"unknown texture \""<<(i->name)<<"\""<<std::endl;
+	for(core::list<MediaRequest>::ConstIterator i = tosend.begin();
+			i != tosend.end(); i++)
+	{
+		if(m_media.find(i->name) == m_media.end()){
+			errorstream<<"Server::sendRequestedMedia(): Client asked for "
+					<<"unknown file \""<<(i->name)<<"\""<<std::endl;
 			continue;
 		}
 
 		//TODO get path + name
-		std::string tpath = m_Textures[(*i).name].path;
+		std::string tpath = m_media[(*i).name].path;
 
 		// Read data
 		std::ifstream fis(tpath.c_str(), std::ios_base::binary);
 		if(fis.good() == false){
-			errorstream<<"Server::SendTexturesRequested(): Could not open \""
+			errorstream<<"Server::sendRequestedMedia(): Could not open \""
 					<<tpath<<"\" for reading"<<std::endl;
 			continue;
 		}
@@ -4112,7 +4115,7 @@ void Server::SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend
 			fis.read(buf, 1024);
 			std::streamsize len = fis.gcount();
 			tmp_os.write(buf, len);
-			texture_size_bunch_total += len;
+			file_size_bunch_total += len;
 			if(fis.eof())
 				break;
 			if(!fis.good()){
@@ -4121,67 +4124,66 @@ void Server::SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend
 			}
 		}
 		if(bad){
-			errorstream<<"Server::SendTexturesRequested(): Failed to read \""
+			errorstream<<"Server::sendRequestedMedia(): Failed to read \""
 					<<(*i).name<<"\""<<std::endl;
 			continue;
 		}
-		/*infostream<<"Server::SendTexturesRequested(): Loaded \""
+		/*infostream<<"Server::sendRequestedMedia(): Loaded \""
 				<<tname<<"\""<<std::endl;*/
 		// Put in list
-		texture_bunches[texture_bunches.size()-1].push_back(
-				SendableTexture((*i).name, tpath, tmp_os.str()));
+		file_bunches[file_bunches.size()-1].push_back(
+				SendableMedia((*i).name, tpath, tmp_os.str()));
 
 		// Start next bunch if got enough data
-		if(texture_size_bunch_total >= bytes_per_bunch){
-			texture_bunches.push_back(core::list<SendableTexture>());
-			texture_size_bunch_total = 0;
+		if(file_size_bunch_total >= bytes_per_bunch){
+			file_bunches.push_back(core::list<SendableMedia>());
+			file_size_bunch_total = 0;
 		}
 
 	}
 
 	/* Create and send packets */
 
-		u32 num_bunches = texture_bunches.size();
-		for(u32 i=0; i<num_bunches; i++)
-		{
-			/*
-				u16 command
-				u16 total number of texture bunches
-				u16 index of this bunch
-				u32 number of textures in this bunch
-				for each texture {
-					u16 length of name
-					string name
-					u32 length of data
-					data
-				}
-			*/
-			std::ostringstream os(std::ios_base::binary);
+	u32 num_bunches = file_bunches.size();
+	for(u32 i=0; i<num_bunches; i++)
+	{
+		std::ostringstream os(std::ios_base::binary);
 
-			writeU16(os, TOCLIENT_TEXTURES);
-			writeU16(os, num_bunches);
-			writeU16(os, i);
-			writeU32(os, texture_bunches[i].size());
-
-			for(core::list<SendableTexture>::Iterator
-					j = texture_bunches[i].begin();
-					j != texture_bunches[i].end(); j++){
-				os<<serializeString(j->name);
-				os<<serializeLongString(j->data);
+		/*
+			u16 command
+			u16 total number of texture bunches
+			u16 index of this bunch
+			u32 number of files in this bunch
+			for each file {
+				u16 length of name
+				string name
+				u32 length of data
+				data
 			}
+		*/
 
-			// Make data buffer
-			std::string s = os.str();
-			verbosestream<<"Server::SendTexturesRequested(): bunch "
-					<<i<<"/"<<num_bunches
-					<<" textures="<<texture_bunches[i].size()
-					<<" size=" <<s.size()<<std::endl;
-			SharedBuffer<u8> data((u8*)s.c_str(), s.size());
-			// Send as reliable
-			m_con.Send(peer_id, 0, data, true);
+		writeU16(os, TOCLIENT_MEDIA);
+		writeU16(os, num_bunches);
+		writeU16(os, i);
+		writeU32(os, file_bunches[i].size());
+
+		for(core::list<SendableMedia>::Iterator
+				j = file_bunches[i].begin();
+				j != file_bunches[i].end(); j++){
+			os<<serializeString(j->name);
+			os<<serializeLongString(j->data);
 		}
 
-
+		// Make data buffer
+		std::string s = os.str();
+		verbosestream<<"Server::sendRequestedMedia(): bunch "
+				<<i<<"/"<<num_bunches
+				<<" files="<<file_bunches[i].size()
+				<<" size=" <<s.size()<<std::endl;
+		SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+		// Send as reliable
+		m_con.Send(peer_id, 0, data, true);
+	}
 }
 
 /*
diff --git a/src/server.h b/src/server.h
index ae50af15b..6c789f7b5 100644
--- a/src/server.h
+++ b/src/server.h
@@ -253,21 +253,21 @@ struct PrioritySortedBlockTransfer
 	u16 peer_id;
 };
 
-struct TextureRequest
+struct MediaRequest
 {
 	std::string name;
 
-	TextureRequest(const std::string &name_=""):
+	MediaRequest(const std::string &name_=""):
 		name(name_)
 	{}
 };
 
-struct TextureInformation
+struct MediaInfo
 {
 	std::string path;
 	std::string sha1_digest;
 
-	TextureInformation(const std::string path_="",
+	MediaInfo(const std::string path_="",
 			const std::string sha1_digest_=""):
 		path(path_),
 		sha1_digest(sha1_digest_)
@@ -644,11 +644,10 @@ private:
 	// Sends blocks to clients (locks env and con on its own)
 	void SendBlocks(float dtime);
 	
-	void PrepareTextures();
-
-	void SendTextureAnnouncement(u16 peer_id);
-
-	void SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend);
+	void fillMediaCache();
+	void sendMediaAnnouncement(u16 peer_id);
+	void sendRequestedMedia(u16 peer_id,
+			const core::list<MediaRequest> &tosend);
 
 	/*
 		Something random
@@ -832,7 +831,7 @@ private:
 	friend class EmergeThread;
 	friend class RemoteClient;
 
-	std::map<std::string,TextureInformation> m_Textures;
+	std::map<std::string,MediaInfo> m_media;
 
 	/*
 		Sounds