usbloadergx/source/usbloader/GameList.cpp

/****************************************************************************
 * Copyright (C) 2010
 * by Dimok
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any
 * damages arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any
 * purpose, including commercial applications, and to alter it and
 * redistribute it freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you
 * must not claim that you wrote the original software. If you use
 * this software in a product, an acknowledgment in the product
 * documentation would be appreciated but is not required.
 *
 * 2. Altered source versions must be plainly marked as such, and
 * must not be misrepresented as being the original software.
 *
 * 3. This notice may not be removed or altered from any source
 * distribution.
 ***************************************************************************/
#include <algorithm>
#include <string>
#include <malloc.h>
#include "usbloader/wbfs.h"
#include "settings/newtitles.h"
#include "settings/CSettings.h"
#include "xml/xml.h"
#include "FreeTypeGX.h"
#include "GameList.h"
#include "memory.h"

GameList gameList;

GameList::GameList()
{

}

void GameList::clear()
{
    FullGameList.clear();
    FilteredList.clear();
    //! Clear memory of the vector completely
    std::vector<struct discHdr *>().swap(FilteredList);
    std::vector<struct discHdr>().swap(FullGameList);
}

struct discHdr * GameList::at(int i)
{
    if (i < 0 || i >= (int) FilteredList.size()) return NULL;

    return FilteredList[i];
}

int GameList::ReadGameList()
{
    FullGameList.clear();
    FilteredList.clear();

    // Retrieve all stuff from WBFS
    u32 cnt;

    int ret = WBFS_GetCount(&cnt);
    if (ret < 0) return -1;

    /* Buffer length */
    u32 len = sizeof(struct discHdr) * cnt;

    /* Allocate memory */
    struct discHdr *buffer = (struct discHdr *) allocate_memory( len );
    if (!buffer) return -1;

    /* Clear buffer */
    memset(buffer, 0, len);

    /* Get header list */
    ret = WBFS_GetHeaders(buffer, cnt, sizeof(struct discHdr));
    if (ret < 0)
    {
        if (buffer) free(buffer);
        return -1;
    }

    FullGameList.resize(cnt);
    memcpy(&FullGameList[0], buffer, len);

    free(buffer);

    return LoadUnfiltered();
}

static bool WCharSortCallback(const wchar_t char1, const wchar_t char2)
{
    if (char2 == 0) return true;
    if (char1 == 0) return false;

    return char2 > char1;
}

int GameList::FilterList(const wchar_t * gameFilter)
{
    if (FullGameList.size() == 0) ReadGameList();
    if (gameFilter) GameFilter.assign(gameFilter);

    FilteredList.clear();
    AvailableSearchChars.clear();

    for (u32 i = 0; i < FullGameList.size(); ++i)
    {
        struct discHdr *header = &FullGameList[i];

        /* Register game */
        NewTitles::Instance()->CheckGame(header->id);

        /* Filters */
        if (Settings.fave)
        {
            struct Game_NUM* game_num = CFG_get_game_num(header->id);
            if (!game_num || game_num->favorite == 0) continue;
        }

        //ignore uLoader cfg "iso".  i was told it is "__CFG_"  but not confirmed
        if (strncasecmp((char*) header->id, "__CFG_", 6) == 0) continue;

        if (Settings.parentalcontrol && !Settings.godmode) if (get_block(header) >= Settings.parentalcontrol) continue;

        /* Other parental control method */
        if (Settings.parentalcontrol == 0 && Settings.godmode == 0 && Settings.Parental.enabled == 1)
        {
            // Check game rating in WiiTDB, since the default Wii parental control setting is enabled
            s32 rating = GetRatingForGame((char *) header->id);
            if ((rating != -1 && rating > Settings.Parental.rating) || (rating == -1 && get_pegi_block(header)
                    > Settings.Parental.rating))
            {
                continue;
            }
        }

        wchar_t *gameName = charToWideChar(get_title(header));

        if (gameName && *GameFilter.c_str())
        {
            if (wcsnicmp(gameName, GameFilter.c_str(), GameFilter.size()) != 0)
            {
                delete[] gameName;
                continue;
            }
        }

        if (gameName)
        {
            if (wcslen(gameName) > GameFilter.size() && AvailableSearchChars.find(gameName[GameFilter.size()])
                    == std::string::npos) AvailableSearchChars.push_back(gameName[GameFilter.size()]);
            delete[] gameName;
        }

        FilteredList.push_back(header);
    }

    NewTitles::Instance()->Save();

    AvailableSearchChars.push_back(L'\0');

    if (FilteredList.size() < 2) AvailableSearchChars.clear();

    SortList();

    return FilteredList.size();
}

int GameList::LoadUnfiltered()
{
    if (FullGameList.size() == 0) ReadGameList();

    GameFilter.clear();
    AvailableSearchChars.clear();
    FilteredList.clear();

    for (u32 i = 0; i < FullGameList.size(); ++i)
    {
        struct discHdr *header = &FullGameList[i];

        /* Register game */
        NewTitles::Instance()->CheckGame(header->id);

        wchar_t *gameName = charToWideChar(get_title(header));
        if (gameName)
        {
            if (wcslen(gameName) > GameFilter.size() && AvailableSearchChars.find(gameName[GameFilter.size()])
                    == std::string::npos) AvailableSearchChars.push_back(gameName[GameFilter.size()]);
            delete[] gameName;
        }

        FilteredList.push_back(header);
    }

    NewTitles::Instance()->Save();

    AvailableSearchChars.push_back(L'\0');

    if (FilteredList.size() < 2) AvailableSearchChars.clear();

    SortList();

    return FilteredList.size();
}

void GameList::SortList()
{
    if (FilteredList.size() < 2) return;

    if (Settings.sort == PLAYCOUNT)
    {
        std::sort(FilteredList.begin(), FilteredList.end(), PlaycountSortCallback);
    }
    else if (Settings.fave)
    {
        std::sort(FilteredList.begin(), FilteredList.end(), FavoriteSortCallback);
    }
    else
    {
        std::sort(FilteredList.begin(), FilteredList.end(), NameSortCallback);
    }

    if (AvailableSearchChars.size() > 1) std::sort(AvailableSearchChars.begin(), AvailableSearchChars.end(),
            WCharSortCallback);

}

bool GameList::NameSortCallback(const struct discHdr *a, const struct discHdr *b)
{
    return (strcasecmp(get_title((struct discHdr *) a), get_title((struct discHdr *) b)) < 0);
}

bool GameList::PlaycountSortCallback(const struct discHdr *a, const struct discHdr *b)
{
    struct Game_NUM* game_num1 = CFG_get_game_num(a->id);
    struct Game_NUM* game_num2 = CFG_get_game_num(b->id);
    int count1 = 0, count2 = 0;

    if (game_num1) count1 = game_num1->count;
    if (game_num2) count2 = game_num2->count;

    if (count1 == count2) return NameSortCallback(a, b);

    return (count1 > count2);
}

bool GameList::FavoriteSortCallback(const struct discHdr *a, const struct discHdr *b)
{
    struct Game_NUM* game_num1 = CFG_get_game_num(a->id);
    struct Game_NUM* game_num2 = CFG_get_game_num(b->id);
    int fav1 = 0, fav2 = 0;

    if (game_num1) fav1 = game_num1->favorite;
    if (game_num2) fav2 = game_num2->favorite;

    if (fav1 == fav2) return NameSortCallback(a, b);

    return (fav1 > fav2);
}