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Support loading Zstandard-compressed ROMs (#1667)

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This is different from the archive support in that the compressed ROMs
are standalone files, rather than archives, making it possible to use
them exactly as if they were regular ROMs, while saving a bunch of space
on disk. This is supported both for DS and GBA ROMs, though given GBA
ROMs' generally small size it's mostly useful for the former.
This commit is contained in:
Nadia Holmquist Pedersen
2023-04-28 19:19:58 +02:00
committed by GitHub
parent 4b170b94d5
commit 38b0d21c22
7 changed files with 121 additions and 24 deletions
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44
src/frontend/qt_sdl/main.cpp
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@ -146,7 +146,7 @@ const QStringList ArchiveExtensions
".tar.lz",
".tar.lzma", ".tlz",
".tar.lrz", ".tlrz",
".tar.lzo", ".tzo",
".tar.lzo", ".tzo"
#endif
};
@ -1568,9 +1568,23 @@ static bool SupportedArchiveByMimetype(const QMimeType& mimetype)
return MimeTypeInList(mimetype, ArchiveMimeTypes);
}
static bool ZstdNdsRomByExtension(const QString& filename)
{
if (filename.endsWith(".zst", Qt::CaseInsensitive))
return NdsRomByExtension(filename.left(filename.size() - 4));
}
static bool ZstdGbaRomByExtension(const QString& filename)
{
if (filename.endsWith(".zst", Qt::CaseInsensitive))
return GbaRomByExtension(filename.left(filename.size() - 4));
}
static bool FileIsSupportedFiletype(const QString& filename, bool insideArchive = false)
{
if (ZstdNdsRomByExtension(filename) || ZstdGbaRomByExtension(filename))
return true;
if (NdsRomByExtension(filename) || GbaRomByExtension(filename) || SupportedArchiveByExtension(filename))
return true;
@ -2207,7 +2221,12 @@ void MainWindow::dropEvent(QDropEvent* event)
const auto matchMode = romInsideArchive ? QMimeDatabase::MatchExtension : QMimeDatabase::MatchDefault;
const QMimeType mimetype = QMimeDatabase().mimeTypeForFile(filename, matchMode);
if (NdsRomByExtension(filename) || NdsRomByMimetype(mimetype))
bool isNdsRom = NdsRomByExtension(filename) || NdsRomByMimetype(mimetype);
bool isGbaRom = GbaRomByExtension(filename) || GbaRomByMimetype(mimetype);
isNdsRom |= ZstdNdsRomByExtension(filename);
isGbaRom |= ZstdGbaRomByExtension(filename);
if (isNdsRom)
{
if (!ROMManager::LoadROM(file, true))
{
@ -2227,7 +2246,7 @@ void MainWindow::dropEvent(QDropEvent* event)
updateCartInserted(false);
}
else if (GbaRomByExtension(filename) || GbaRomByMimetype(mimetype))
else if (isGbaRom)
{
if (!ROMManager::LoadGBAROM(file))
{
@ -2452,14 +2471,25 @@ QStringList MainWindow::pickROM(bool gba)
const QString console = gba ? "GBA" : "DS";
const QStringList& romexts = gba ? GbaRomExtensions : NdsRomExtensions;
static const QString filterSuffix = ArchiveExtensions.empty()
? ");;Any file (*.*)"
: " *" + ArchiveExtensions.join(" *") + ");;Any file (*.*)";
QString rawROMs = romexts.join(" *");
QString extraFilters = ";;" + console + " ROMs (*" + rawROMs;
QString allROMs = rawROMs;
QString zstdROMs = "*" + romexts.join(".zst *") + ".zst";
extraFilters += ");;Zstandard-compressed " + console + " ROMs (" + zstdROMs + ")";
allROMs += " " + zstdROMs;
#ifdef ARCHIVE_SUPPORT_ENABLED
QString archives = "*" + ArchiveExtensions.join(" *");
extraFilters += ";;Archives (" + archives + ")";
allROMs += " " + archives;
#endif
extraFilters += ";;All files (*.*)";
const QString filename = QFileDialog::getOpenFileName(
this, "Open " + console + " ROM",
QString::fromStdString(Config::LastROMFolder),
console + " ROMs (*" + romexts.join(" *") + filterSuffix
"All supported files (*" + allROMs + ")" + extraFilters
);
if (filename.isEmpty()) return {};