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ENGINES: Make creation of savegame thumbnails an overrideable method

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This commit is contained in:
Paul Gilbert 2021-02-12 18:21:28 -08:00
parent 58239a7ca2
commit ae4da8bce0
5 changed files with 16 additions and 15 deletions
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2
engines/cine/saveload.cpp
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@ -1030,7 +1030,7 @@ void CineEngine::makeSave(const Common::String &saveFileName, uint32 playtime,
renderer->popSavedBackBuffer(BEFORE_OPENING_MENU);
}
MetaEngine::appendExtendedSave(fHandle.get(), playtime, desc, isAutosave);
getMetaEngine().appendExtendedSave(fHandle.get(), playtime, desc, isAutosave);
renderer->restoreSavedBackBuffer(BEFORE_TAKING_THUMBNAIL);

2
engines/engine.cpp
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@ -774,7 +774,7 @@ Common::Error Engine::saveGameState(int slot, const Common::String &desc, bool i
Common::Error result = saveGameStream(saveFile, isAutosave);
if (result.getCode() == Common::kNoError) {
MetaEngine::appendExtendedSave(saveFile, getTotalPlayTime() / 1000, desc, isAutosave);
getMetaEngine().appendExtendedSave(saveFile, getTotalPlayTime() / 1000, desc, isAutosave);
saveFile->finalize();
}

14
engines/metaengine.cpp
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@ -165,21 +165,19 @@ void MetaEngine::appendExtendedSave(Common::OutSaveFile *saveFile, uint32 playti
saveFile->writeString(desc);
saveFile->writeByte(isAutosave);
saveScreenThumbnail(saveFile);
// Write out the thumbnail
Graphics::Surface thumb;
getSavegameThumbnail(thumb);
Graphics::saveThumbnail(*saveFile, thumb);
thumb.free();
saveFile->writeUint32LE(headerPos); // Store where the header starts
saveFile->finalize();
}
void MetaEngine::saveScreenThumbnail(Common::OutSaveFile *saveFile) {
// Create a thumbnail surface from the screen
Graphics::Surface thumb;
void MetaEngine::getSavegameThumbnail(Graphics::Surface &thumb) {
::createThumbnailFromScreen(&thumb);
// Write out the thumbnail
Graphics::saveThumbnail(*saveFile, thumb);
thumb.free();
}
void MetaEngine::parseSavegameHeader(ExtendedSavegameHeader *header, SaveStateDescriptor *desc) {

11
engines/metaengine.h
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@ -200,11 +200,13 @@ public:
* the engine, while a MetaEngine will always build into the executable to be able to detect code.
*/
class MetaEngine : public PluginObject {
private:
protected:
/**
* Convert the current screen contents to a thumbnail and save it.
* Convert the current screen contents to a thumbnail. Can be overriden by individual
* engine meta engines to provide their own thumb, such as hiding any on-screen save
* dialog so that it won't appear in the thumbnail.
*/
static void saveScreenThumbnail(Common::OutSaveFile *saveFile);
virtual void getSavegameThumbnail(Graphics::Surface &thumb);
public:
virtual ~MetaEngine() {}
@ -488,7 +490,8 @@ public:
/**
* Write the extended savegame header to the given savegame file.
*/
static void appendExtendedSave(Common::OutSaveFile *saveFile, uint32 playtime, Common::String desc, bool isAutosave);
void appendExtendedSave(Common::OutSaveFile *saveFile, uint32 playtime, Common::String desc, bool isAutosave);
/**
* Parse the extended savegame header to retrieve the SaveStateDescriptor information.
*/

2
engines/ultima/nuvie/files/nuvie_io_file.cpp
View File

@ -185,7 +185,7 @@ void NuvieIOFileWrite::close() {
} else if (_saveFile) {
// Writing using savefile interface, so flush out data
_saveFile->write(_saveFileData.getData(), _saveFileData.size());
MetaEngine::appendExtendedSave(_saveFile, Shared::g_ultima->getTotalPlayTime(), _description, _isAutosave);
g_engine->getMetaEngine().appendExtendedSave(_saveFile, Shared::g_ultima->getTotalPlayTime(), _description, _isAutosave);
_saveFile->finalize();
delete _saveFile;