QTfrontend/SDLs.cpp
author koda
Tue, 23 Aug 2011 03:46:17 +0200
changeset 5662 99083392cd4f
parent 5252 ded882439548
child 5747 65006a679352
permissions -rw-r--r--
FREE AT LAST!!! SDL came around a (mostly) sane way for implementing rotation events, so we can scrap all the workaround code that has been added to workaround it!! Also this allows us to use proper (internal) multitasking handling and can simplify optional settings and other yet unexplored features. Yay!
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2007-2011 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 */
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#include "SDLs.h"
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#include "SDL.h"
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#include "SDL_mixer.h"
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#include "hwconsts.h"
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#include "HWApplication.h"
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extern char sdlkeys[1024][2][128];
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extern char xb360buttons[][128];
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extern char xb360dpad[128];
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extern char xbox360axes[][128];
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SDLInteraction::SDLInteraction()
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{
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    SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK);
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    musicInitialized = 0;
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    music = NULL;
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    if(SDL_NumJoysticks())
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        addGameControllerKeys();
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    SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
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}
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SDLInteraction::~SDLInteraction()
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{
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    if (musicInitialized == 1) {
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        if (music != NULL)
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            Mix_FreeMusic(music);
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        Mix_CloseAudio();
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    }
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    SDL_Quit();
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}
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QStringList SDLInteraction::getResolutions() const
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{
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    QStringList result;
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    SDL_Rect **modes;
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    modes = SDL_ListModes(NULL, SDL_FULLSCREEN);
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    if((modes == (SDL_Rect **)0) || (modes == (SDL_Rect **)-1))
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    {
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        result << "640x480";
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    } else
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    {
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        for(int i = 0; modes[i]; ++i)
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            if ((modes[i]->w >= 640) && (modes[i]->h >= 480))
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                result << QString("%1x%2").arg(modes[i]->w).arg(modes[i]->h);
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    }
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    return result;
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}
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void SDLInteraction::addGameControllerKeys() const
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{
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    QStringList result;
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    int i = 0;
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    while(i < 1024 && sdlkeys[i][1][0] != '\0')
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        i++;
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    // Iterate through all game controllers
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    for(int jid = 0; jid < SDL_NumJoysticks(); jid++)
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    {
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        SDL_Joystick* joy = SDL_JoystickOpen(jid);
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        // Retrieve the game controller's name and strip "Controller (...)" that's added by some drivers (English only)
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        QString joyname = QString(SDL_JoystickName(jid)).replace(QRegExp("^Controller \\((.*)\\)$"), "\\1");
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        // Connected Xbox 360 controller? Use specific button names then
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        // Might be interesting to add 'named' buttons for the most often used gamepads
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        bool isxb = joyname.contains("Xbox 360");
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        // This part of the string won't change for multiple keys/hats, so keep it
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        QString prefix = QString("%1 (%2): ").arg(joyname).arg(jid + 1);
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        // Register entries for missing axes not assigned to sticks of this joystick/gamepad
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        for(int aid = 0; aid < SDL_JoystickNumAxes(joy) && i < 1021; aid++)
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        {
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            // Again store the part of the string not changing for multiple uses
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            QString axis = prefix + HWApplication::translate("binds (keys)", "Axis") + QString(" %1 ").arg(aid + 1);
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            // Entry for "Axis Up"
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            sprintf(sdlkeys[i][0], "j%da%du", jid, aid);
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            sprintf(sdlkeys[i++][1], "%s", ((isxb && aid < 5) ? (prefix + HWApplication::translate("binds (keys)", xbox360axes[aid * 2])) : axis + HWApplication::translate("binds (keys)", "(Up)")).toStdString().c_str());
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            // Entry for "Axis Down"
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            sprintf(sdlkeys[i][0], "j%da%dd", jid, aid);
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            sprintf(sdlkeys[i++][1], "%s", ((isxb && aid < 5) ? (prefix + HWApplication::translate("binds (keys)", xbox360axes[aid * 2 + 1])) : axis + HWApplication::translate("binds (keys)", "(Down)")).toStdString().c_str());
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        }
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        // Register entries for all coolie hats of this joystick/gamepad
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        for(int hid = 0; hid < SDL_JoystickNumHats(joy) && i < 1019; hid++)
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        {
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            // Again store the part of the string not changing for multiple uses
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            QString hat = prefix + (isxb ? (HWApplication::translate("binds (keys)", xb360dpad) + QString(" ")) : HWApplication::translate("binds (keys)", "Hat") + QString(" %1 ").arg(hid + 1));
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            // Entry for "Hat Up"
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            sprintf(sdlkeys[i][0], "j%dh%du", jid, hid);
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            sprintf(sdlkeys[i++][1], "%s", (hat + HWApplication::translate("binds (keys)", "(Up)")).toStdString().c_str());
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            // Entry for "Hat Down"
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            sprintf(sdlkeys[i][0], "j%dh%dd", jid, hid);
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            sprintf(sdlkeys[i++][1], "%s", (hat + HWApplication::translate("binds (keys)", "(Down)")).toStdString().c_str());
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            // Entry for "Hat Left"
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            sprintf(sdlkeys[i][0], "j%dh%dl", jid, hid);
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            sprintf(sdlkeys[i++][1], "%s", (hat + HWApplication::translate("binds (keys)", "(Left)")).toStdString().c_str());
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            // Entry for "Hat Right"
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            sprintf(sdlkeys[i][0], "j%dh%dr", jid, hid);
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            sprintf(sdlkeys[i++][1], "%s", (hat + HWApplication::translate("binds (keys)", "(Right)")).toStdString().c_str());
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        }
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        // Register entries for all buttons of this joystick/gamepad
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        for(int bid = 0; bid < SDL_JoystickNumButtons(joy) && i < 1022; bid++)
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        {
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            // Buttons
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            sprintf(sdlkeys[i][0], "j%db%d", jid, bid);
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            sprintf(sdlkeys[i++][1], "%s", (prefix + ((isxb && bid < 10) ? (HWApplication::translate("binds (keys)", xb360buttons[bid]) + QString(" ")) : HWApplication::translate("binds (keys)", "Button") + QString(" %1").arg(bid + 1))).toStdString().c_str());
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        }
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        // Close the game controller as we no longer need it
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        SDL_JoystickClose(joy);
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    }
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    // Terminate the list
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    sdlkeys[i][0][0] = '\0';
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    sdlkeys[i][1][0] = '\0';
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}
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void SDLInteraction::SDLMusicInit()
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{
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    if (musicInitialized == 0) {
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        SDL_Init(SDL_INIT_AUDIO);
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        Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 1024);
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        musicInitialized = 1;
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    }
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}
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void SDLInteraction::StartMusic()
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{
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    SDLMusicInit();
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    QFile tmpfile;
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    tmpfile.setFileName(cfgdir->absolutePath() + "/Data/Music/main_theme.ogg");
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    if (!tmpfile.exists()) tmpfile.setFileName(datadir->absolutePath() + "/Music/main_theme.ogg");
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    if (music == NULL) {
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        music = Mix_LoadMUS(QFileInfo(tmpfile).absoluteFilePath().toLocal8Bit().constData());
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    }
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    Mix_VolumeMusic(MIX_MAX_VOLUME - 28);
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    Mix_FadeInMusic(music, -1, 1750);
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}
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void SDLInteraction::StopMusic()
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{
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    if (music != NULL) {
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        // fade out music to finish 0,5 seconds from now
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        while(!Mix_FadeOutMusic(1000) && Mix_PlayingMusic()) {
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            SDL_Delay(100);
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        }
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    }
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}
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