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Speed up directory loading

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Doesn't load the file size until displaying it which makes it *way* faster
This commit is contained in:
Pk11 2021-08-20 10:41:41 -05:00
parent 9ec144f4ea
commit 162700115d
2 changed files with 33 additions and 39 deletions
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65
arm9/source/file_browse.cpp
View File

@ -51,8 +51,8 @@
static char path[PATH_MAX];
bool extension(const std::string &filename, const std::vector<std::string> &extensions) {
for(const std::string &ext : extensions) {
bool extension(const std::string_view filename, const std::vector<std::string_view> &extensions) {
for(const std::string_view &ext : extensions) {
if(filename.length() > ext.length() && strcasecmp(filename.substr(filename.length() - ext.length()).data(), ext.data()) == 0)
return true;
}
@ -77,58 +77,41 @@ bool dirEntryPredicate (const DirEntry& lhs, const DirEntry& rhs) {
}
void getDirectoryContents(std::vector<DirEntry>& dirContents) {
struct stat st;
dirContents.clear();
DIR *pdir = opendir (".");
if (pdir == NULL) {
if (pdir == nullptr) {
font->print(0, 0, true, "Unable to open the directory.");
font->update(true);
} else {
while (true) {
dirent *pent = readdir(pdir);
if (pent == nullptr)
break;
while(true) {
DirEntry dirEntry;
if (strcmp(pent->d_name, ".") == 0 || strcmp(pent->d_name, "..") == 0)
continue;
struct dirent* pent = readdir(pdir);
if(pent == NULL) break;
stat(pent->d_name, &st);
if (strcmp(pent->d_name, "..") != 0) {
dirEntry.name = pent->d_name;
dirEntry.isDirectory = st.st_mode & S_IFDIR;
if (!dirEntry.isDirectory) {
dirEntry.size = getFileSize(dirEntry.name.c_str());
}
if (extension(dirEntry.name, {"nds", "argv", "dsi", "ids", "app", "srl"})) {
dirEntry.isApp = ((currentDrive == 0 && sdMounted) || (currentDrive == 1 && flashcardMounted));
} else if (extension(dirEntry.name, {"firm"})) {
dirEntry.isApp = (isDSiMode() && is3DS && sdMounted);
} else {
dirEntry.isApp = false;
}
if (dirEntry.name.compare(".") != 0) {
dirContents.push_back (dirEntry);
}
bool isApp = false;
if (extension(pent->d_name, {"nds", "argv", "dsi", "ids", "app", "srl"})) {
isApp = (currentDrive == 0 && sdMounted) || (currentDrive == 1 && flashcardMounted);
} else if (extension(pent->d_name, {"firm"})) {
isApp = (isDSiMode() && is3DS && sdMounted);
}
dirContents.emplace_back(pent->d_name, pent->d_type == DT_DIR ? 0 : -1, pent->d_type == DT_DIR, isApp);
}
closedir(pdir);
}
sort(dirContents.begin(), dirContents.end(), dirEntryPredicate);
std::sort(dirContents.begin(), dirContents.end(), dirEntryPredicate);
DirEntry dirEntry;
dirEntry.name = ".."; // ".." entry
dirEntry.isDirectory = true;
dirEntry.isApp = false;
dirContents.insert (dirContents.begin(), dirEntry); // Add ".." to top of list
// Add ".." to top of list
dirContents.insert(dirContents.begin(), {"..", 0, true, false});
}
void showDirectoryContents (const std::vector<DirEntry>& dirContents, int fileOffset, int startRow) {
void showDirectoryContents(std::vector<DirEntry> &dirContents, int fileOffset, int startRow) {
getcwd(path, PATH_MAX);
font->clear(true);
@ -147,7 +130,7 @@ void showDirectoryContents (const std::vector<DirEntry>& dirContents, int fileOf
// Print directory listing
for (int i = 0; i < ((int)dirContents.size() - startRow) && i < ENTRIES_PER_SCREEN; i++) {
const DirEntry *entry = &dirContents[i + startRow];
DirEntry *entry = &dirContents[i + startRow];
Palette pal;
if ((fileOffset - startRow) == i) {
@ -160,6 +143,10 @@ void showDirectoryContents (const std::vector<DirEntry>& dirContents, int fileOf
pal = Palette::gray;
}
// Load size if not loaded yet
if(entry->size == -1)
entry->size = getFileSize(entry->name.c_str());
font->print(0, i + 1, true, entry->name.substr(0, SCREEN_COLS), Alignment::left, pal);
if (entry->name == "..") {
font->print(-1, i + 1, true, "(..)", Alignment::right, pal);
@ -586,6 +573,10 @@ void fileBrowse_drawBottomScreen(DirEntry* entry) {
font->print(0, row--, false, "X - DELETE/[+R] RENAME file\n");
font->print(0, row--, false, titleName);
// Load size if not loaded yet
if(entry->size == -1)
entry->size = getFileSize(entry->name.c_str());
Palette pal = entry->selected ? Palette::yellow : (entry->isDirectory ? Palette::blue : Palette::gray);
font->print(0, 0, false, entry->name, Alignment::left, pal);
if (entry->name != "..") {

7
arm9/source/file_browse.h
View File

@ -26,8 +26,11 @@
#include <vector>
struct DirEntry {
DirEntry(std::string name, size_t size, bool isDirectory, bool isApp, bool selected = false) : name(name), size(size), isDirectory(isDirectory), isApp(isApp), selected(selected) {}
DirEntry() {}
std::string name;
size_t size;
int size;
bool isDirectory;
bool isApp;
bool selected = false;
@ -50,7 +53,7 @@ enum class FileOperation {
loadFont,
};
bool extension(const std::string &filename, const std::vector<std::string> &extensions);
bool extension(const std::string_view filename, const std::vector<std::string_view> &extensions);
void OnKeyPressed(int key);
std::string browseForFile (void);