scummvm/engines/cge
Adrian Frühwirth 00e59a3122 ALL: Load savegame thumbnail only when necessary
This commit introduces the following changes:

1. Graphics::loadThumbnail()

   Now returns a boolean and takes a new argument skipThumbnail which
   defaults to false. In case of true, loadThumbnail() reads past the
   thumbnail data in the input stream instead of actually loading the
   thumbnail. This simplifies savegame handling where, up until now,
   many engines always read the whole savegame metadata (including
   the thumbnail) and then threw away the thumbnail when not needed
   (which is in almost all cases, the most common exception being
   MetaEngine::querySaveMetaInfos() which is responsible for loading
   savegame metadata for displaying it in the GUI launcher.

2. readSavegameHeader()

   Engines which already implement such a method (name varies) now take
   a new argument skipThumbnail (default: true) which is passed
   through to loadThumbnail(). This means that the default case for
   readSavegameHeader() is now _not_ loading the thumbnail from a
   savegame and just reading past it. In those cases, e.g.
   querySaveMetaInfos(), where we actually are interested in loading
   the thumbnail readSavegameHeader() needs to explicitely be called
   with skipThumbnail == false.

   Engines whose readSavegameHeader() (name varies) already takes an
   argument loadThumbnail have been adapted to have a similar
   prototype and semantics.
   I.e. readSaveHeader(in, loadThumbnail, header) now is
   readSaveHeader(in, header, skipThumbnail).

3. Error handling

   Engines which previously did not check the return value of
   readSavegameHeader() (name varies) now do so ensuring that possibly
   broken savegames (be it a broken thumbnail or something else) don't
   make it into the GUI launcher list in the first place.
2018-04-07 09:26:20 +02:00
..
bitmap.cpp JANITORIAL: Silence more GCC 7 warnings 2017-08-06 12:26:05 +02:00
bitmap.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
cge_main.cpp ALL: Load savegame thumbnail only when necessary 2018-04-07 09:26:20 +02:00
cge_main.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
cge.cpp ENGINES: Remove default1x scaler flag 2017-10-07 12:30:29 -05:00
cge.h ALL: Load savegame thumbnail only when necessary 2018-04-07 09:26:20 +02:00
configure.engine BUILD: Split configure.engines down to a single file per engine. 2013-11-24 00:45:38 +00:00
console.cpp ALL: Rename Debugger::DCmd_Register to Debugger::registerCmd. 2014-05-27 02:04:08 +02:00
console.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
detection.cpp ALL: Load savegame thumbnail only when necessary 2018-04-07 09:26:20 +02:00
events.cpp JANITORIAL: Silence more GCC 7 warnings 2017-08-06 12:26:05 +02:00
events.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
fileio.cpp CGE: Add a safeguard in getPage() 2014-10-11 09:19:09 +02:00
fileio.h CGE: Get rid of a magic value in file seek 2014-03-11 07:52:46 +01:00
game.cpp CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
game.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
general.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
module.mk CGE: Janitorial - Remove trailing spaces 2014-02-16 18:35:14 +01:00
POTFILES CGE: Add events.cpp to POTFILE 2016-02-20 21:24:38 +00:00
snail.cpp PORTS: Remove the Yopy PDA port 2017-12-19 07:37:08 +01:00
snail.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
sound.cpp JANITORIAL: Reduce audio header dependencies 2016-04-14 16:10:21 +03:00
sound.h JANITORIAL: Reduce audio header dependencies 2016-04-14 16:10:21 +03:00
talk.cpp CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
talk.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
text.cpp CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
text.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
vga13h.cpp CGE: Remove trailing whitespace 2014-10-28 16:04:11 +02:00
vga13h.h CGE: Remove (broken) variable length specification 2014-06-15 21:52:06 +02:00
vmenu.cpp CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
vmenu.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
walk.cpp CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00
walk.h CGE: Make GPL headers consistent in themselves. 2014-02-18 02:39:33 +01:00