From cf4452388cc4104072801b2a0c74bdef03d419d5 Mon Sep 17 00:00:00 2001
From: Eugene Sandulenko
Date: Tue, 20 Sep 2016 19:19:57 +0200
Subject: FULLPIPE: Save ScummVM-specific header with the saves

---
 engines/fullpipe/gameloader.h    |  1 +
 engines/fullpipe/stateloader.cpp | 34 +++++++++++++++++++++++++---------
 engines/fullpipe/statesaver.cpp  | 26 ++++++++++++++++++++++++++
 3 files changed, 52 insertions(+), 9 deletions(-)

diff --git a/engines/fullpipe/gameloader.h b/engines/fullpipe/gameloader.h
index 5687e6bba3..9f99cb16f3 100644
--- a/engines/fullpipe/gameloader.h
+++ b/engines/fullpipe/gameloader.h
@@ -77,6 +77,7 @@ class PreloadItems : public Common::Array<PreloadItem *>, public CObject {
 };
 
 struct FullpipeSavegameHeader {
+	char id[6];
 	uint8 version;
 	Common::String saveName;
 	uint32 date;
diff --git a/engines/fullpipe/stateloader.cpp b/engines/fullpipe/stateloader.cpp
index 9cca85c52d..a12233187a 100644
--- a/engines/fullpipe/stateloader.cpp
+++ b/engines/fullpipe/stateloader.cpp
@@ -169,22 +169,34 @@ void parseSavegameHeader(Fullpipe::FullpipeSavegameHeader &header, SaveStateDesc
 	int minutes = header.time & 0xFF;
 	desc.setSaveTime(hour, minutes);
 	desc.setPlayTime(header.playtime * 1000);
+
+	desc.setDescription(header.saveName);
 }
 
 bool readSavegameHeader(Common::InSaveFile *in, FullpipeSavegameHeader &header) {
-	char saveIdentBuffer[6];
 	header.thumbnail = NULL;
 
 	uint oldPos = in->pos();
 
-	in->seek(4, SEEK_END);
+	// SEEK_END doesn't work with zipped savegames, so simulate it
+	while (!in->eos())
+		in->readByte();
+
+	in->seek(-4, SEEK_CUR);
 	uint headerOffset = in->readUint32LE();
 
+	// Sanity check
+	if (headerOffset >= in->pos() || headerOffset == 0) {
+		in->seek(oldPos, SEEK_SET); // Rewind the file
+		return false;
+	}
+
 	in->seek(headerOffset, SEEK_SET);
 
+	in->read(header.id, 6);
+
 	// Validate the header Id
-	in->read(saveIdentBuffer, 6);
-	if (strcmp(saveIdentBuffer, "SVMCR")) {
+	if (strcmp(header.id, "SVMCR")) {
 		// This is wrong header, perhaps it is original savegame. Thus fill out dummy values
 		header.date = (16 >> 24) | (9 >> 20) | 2016;
 		header.time = (9 >> 8) | 56;
@@ -196,11 +208,15 @@ bool readSavegameHeader(Common::InSaveFile *in, FullpipeSavegameHeader &header)
 	if (header.version != FULLPIPE_SAVEGAME_VERSION)
 		return false;
 
-	// Read in the string
-	header.saveName.clear();
-	char ch;
-	while ((ch = (char)in->readByte()) != '\0')
-		header.saveName += ch;
+	header.date = in->readUint32LE();
+	header.time = in->readUint16LE();
+	header.playtime = in->readUint32LE();
+
+	// Generate savename
+	SaveStateDescriptor desc;
+
+	parseSavegameHeader(header, desc);
+	header.saveName = Common::String::format("%s %s", desc.getSaveDate().c_str(), desc.getSaveTime().c_str());
 
 	// Get the thumbnail
 	header.thumbnail = Graphics::loadThumbnail(*in);
diff --git a/engines/fullpipe/statesaver.cpp b/engines/fullpipe/statesaver.cpp
index eaf0352cec..eb5de08422 100644
--- a/engines/fullpipe/statesaver.cpp
+++ b/engines/fullpipe/statesaver.cpp
@@ -22,6 +22,8 @@
 
 #include "common/memstream.h"
 
+#include "graphics/thumbnail.h"
+
 #include "fullpipe/fullpipe.h"
 
 #include "fullpipe/gameloader.h"
@@ -114,6 +116,30 @@ void GameLoader::writeSavegame(Scene *sc, const char *fname) {
 
 	saveFile->write(stream.getData(), stream.size());
 
+	uint headerPos = saveFile->pos();
+	FullpipeSavegameHeader header2;
+
+	strcpy(header2.id, "SVMCR");
+	header2.version = FULLPIPE_SAVEGAME_VERSION;
+
+	TimeDate curTime;
+	g_system->getTimeAndDate(curTime);
+
+	header2.date = ((curTime.tm_mday & 0xFF) << 24) | (((curTime.tm_mon + 1) & 0xFF) << 16) | ((curTime.tm_year + 1900) & 0xFFFF);
+	header2.time = ((curTime.tm_hour & 0xFF) << 8) | ((curTime.tm_min) & 0xFF);
+
+	header2.playtime = g_fp->getTotalPlayTime() / 1000;
+
+	saveFile->write(header2.id, 6);
+	saveFile->writeByte(header2.version);
+	saveFile->writeUint32LE(header2.date);
+	saveFile->writeUint16LE(header2.time);
+	saveFile->writeUint32LE(header2.playtime);
+
+	Graphics::saveThumbnail(*saveFile); // FIXME. Render proper screen
+
+	saveFile->writeUint32LE(headerPos);	// Store where the header starts
+
 	saveFile->finalize();
 
 	delete saveFile;
-- 
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