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SWORD25: Initial code for showing savegame thumbnails

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There is currently a bug and only the thumbnail of the first save slot is
shown
This commit is contained in:
md5 2011-05-05 18:33:22 +03:00
parent dee398ad6c
commit 921030f4ef
3 changed files with 62 additions and 11 deletions
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8
engines/sword25/gfx/graphicengine.cpp
View File

@ -266,8 +266,9 @@ Resource *GraphicEngine::loadResource(const Common::String &filename) {
return pResource;
}
// Load sprite image
if (filename.hasSuffix(".png") || filename.hasSuffix(".b25s")) {
// Load sprite image. Savegame thumbnails are also loaded here.
if (filename.hasSuffix(".png") || filename.hasSuffix(".b25s") ||
filename.hasPrefix("/saves")) {
bool result = false;
RenderedImage *pImage = new RenderedImage(filename, result);
if (!result) {
@ -354,7 +355,8 @@ bool GraphicEngine::canLoadResource(const Common::String &filename) {
filename.hasSuffix("_ani.xml") ||
filename.hasSuffix("_fnt.xml") ||
filename.hasSuffix(".swf") ||
filename.hasSuffix(".b25s");
filename.hasSuffix(".b25s") ||
filename.hasPrefix("/saves");
}
void GraphicEngine::updateLastFrameDuration() {

8
engines/sword25/kernel/persistenceservice.cpp
View File

@ -134,14 +134,6 @@ struct PersistenceService::Impl {
// Iterate through all the saved games, and read their thumbnails.
for (uint i = 0; i < SLOT_COUNT; ++i) {
readSlotSavegameInformation(i);
// TODO: This function is supposed to load savegame screenshots
// into an appropriate array (or the header struct of each saved
// game). Currently, it's a stub. For each slot, we should skip
// the header plus gameDataLength bytes and read the screenshot
// data. Then, these screenshots should be used for the save list
// screen. The thumbnail code seems to be missing completely,
// though (unless I'm mistaken), so these thumbnails aren't used
// anywhere currently.
}
}

57
engines/sword25/package/packagemanager.cpp
View File

@ -141,6 +141,29 @@ bool PackageManager::loadDirectoryAsPackage(const Common::String &directoryName,
}
}
// Duplicated from kernel/persistenceservice.cpp
static Common::String generateSavegameFilename(uint slotID) {
char buffer[100];
// NOTE: This is hardcoded to sword25
snprintf(buffer, 100, "%s.%.3d", "sword25", slotID);
return Common::String(buffer);
}
// Duplicated from kernel/persistenceservice.cpp
static Common::String loadString(Common::InSaveFile *in, uint maxSize = 999) {
Common::String result;
char ch = (char)in->readByte();
while (ch != '\0') {
result += ch;
if (result.size() >= maxSize)
break;
ch = (char)in->readByte();
}
return result;
}
byte *PackageManager::getFile(const Common::String &fileName, uint *fileSizePtr) {
const Common::String B25S_EXTENSION(".b25s");
Common::SeekableReadStream *in;
@ -165,6 +188,40 @@ byte *PackageManager::getFile(const Common::String &fileName, uint *fileSizePtr)
return buffer;
}
if (fileName.hasPrefix("/saves")) {
// A savegame thumbnail
Common::SaveFileManager *sfm = g_system->getSavefileManager();
int slotNum = atoi(fileName.c_str() + fileName.size() - 3);
Common::InSaveFile *file = sfm->openForLoading(generateSavegameFilename(slotNum));
if (file) {
loadString(file); // storedMarker
loadString(file); // storedVersionID
loadString(file); // gameDescription
int gameDataLength = atoi(loadString(file).c_str());
loadString(file); // gamedataUncompressedLength
// Skip the savegame data
file->skip(gameDataLength);
int thumbnailSize = file->size() - file->pos();
if (thumbnailSize <= 0) {
warning("Saved game at slot %d does not contain a thumbnail", slotNum);
delete file;
return 0;
}
if (fileSizePtr)
*fileSizePtr = thumbnailSize;
byte *thumbnail = new byte[thumbnailSize];
file->read(thumbnail, thumbnailSize);
delete file;
return thumbnail;
}
}
Common::ArchiveMemberPtr fileNode = getArchiveMember(normalizePath(fileName, _currentDirectory));
if (!fileNode)
return 0;