C++ SpriteCache类代码示例

ScriptDynamicSprite* DynamicSprite_CreateFromDrawingSurface(ScriptDrawingSurface *sds, int x, int y, int width, int height) 
{
    int gotSlot = spriteset.findFreeSlot();
    if (gotSlot <= 0)
        return NULL;

    // use DrawingSurface resolution
    sds->MultiplyCoordinates(&x, &y);
    sds->MultiplyCoordinates(&width, &height);

    Bitmap *ds = sds->StartDrawing();

    if ((x < 0) || (y < 0) || (x + width > ds->GetWidth()) || (y + height > ds->GetHeight()))
        quit("!DynamicSprite.CreateFromDrawingSurface: requested area is outside the surface");

    int colDepth = ds->GetColorDepth();

    Bitmap *newPic = BitmapHelper::CreateBitmap(width, height, colDepth);
    if (newPic == NULL)
        return NULL;

    newPic->Blit(ds, x, y, 0, 0, width, height);

    sds->FinishedDrawingReadOnly();

    add_dynamic_sprite(gotSlot, newPic, (sds->hasAlphaChannel != 0));
    ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
    return new_spr;
}

void precache_view(int view) 
{
    if (view < 0) 
        return;

    for (int i = 0; i < views[view].numLoops; i++) {
        for (int j = 0; j < views[view].loops[i].numFrames; j++)
            spriteset.precache (views[view].loops[i].frames[j].pic);
    }
}

// new_room: changes the current room number, and loads the new room from disk
void new_room(int newnum,CharacterInfo*forchar) {
    EndSkippingUntilCharStops();

    Out::FPrint("Room change requested to room %d", newnum);

    update_polled_stuff_if_runtime();

    // we are currently running Leaves Screen scripts
    in_leaves_screen = newnum;

    // player leaves screen event
    run_room_event(8);
    // Run the global OnRoomLeave event
    run_on_event (GE_LEAVE_ROOM, RuntimeScriptValue().SetInt32(displayed_room));

    platform->RunPluginHooks(AGSE_LEAVEROOM, displayed_room);

    // update the new room number if it has been altered by OnLeave scripts
    newnum = in_leaves_screen;
    in_leaves_screen = -1;

    if ((playerchar->following >= 0) &&
        (game.chars[playerchar->following].room != newnum)) {
            // the player character is following another character,
            // who is not in the new room. therefore, abort the follow
            playerchar->following = -1;
    }
    update_polled_stuff_if_runtime();

    // change rooms
    unload_old_room();

    if (psp_clear_cache_on_room_change)
    {
        // Delete all cached sprites
        spriteset.removeAll();

        // Delete all gui background images
        for (int i = 0; i < game.numgui; i++)
        {
            delete guibg[i];
            guibg[i] = NULL;

            if (guibgbmp[i])
                gfxDriver->DestroyDDB(guibgbmp[i]);
            guibgbmp[i] = NULL;
        }
        guis_need_update = 1;
    }

    update_polled_stuff_if_runtime();

    load_new_room(newnum,forchar);
}

ScriptDynamicSprite* DynamicSprite_CreateFromScreenShot(int width, int height) {

    int gotSlot = spriteset.findFreeSlot();
    if (gotSlot <= 0)
        return NULL;

    if (width <= 0)
        width = virtual_screen->GetWidth();
    else
        width = multiply_up_coordinate(width);

    if (height <= 0)
        height = virtual_screen->GetHeight();
    else
        height = multiply_up_coordinate(height);

    Bitmap *newPic;
    if (!gfxDriver->UsesMemoryBackBuffer()) 
    {
        // D3D driver
        Bitmap *scrndump = BitmapHelper::CreateBitmap(scrnwid, scrnhit, final_col_dep);
        gfxDriver->GetCopyOfScreenIntoBitmap(scrndump);

        update_polled_stuff_if_runtime();

        if ((scrnwid != width) || (scrnhit != height))
        {
            newPic = BitmapHelper::CreateBitmap(width, height, final_col_dep);
            newPic->StretchBlt(scrndump,
                RectWH(0, 0, scrndump->GetWidth(), scrndump->GetHeight()),
                RectWH(0, 0, width, height));
            delete scrndump;
        }
        else
        {
            newPic = scrndump;
        }
    }
    else
    {
        // resize the sprite to the requested size
        newPic = BitmapHelper::CreateBitmap(width, height, virtual_screen->GetColorDepth());

        newPic->StretchBlt(virtual_screen,
            RectWH(0, 0, virtual_screen->GetWidth(), virtual_screen->GetHeight()),
            RectWH(0, 0, width, height));
    }

    // replace the bitmap in the sprite set
    add_dynamic_sprite(gotSlot, gfxDriver->ConvertBitmapToSupportedColourDepth(newPic));
    ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
    GlobalReturnValue.SetDynamicObject(new_spr, new_spr);
    return new_spr;
}

ScriptDynamicSprite* DynamicSprite_CreateFromExistingSprite(int slot, int preserveAlphaChannel) {

    int gotSlot = spriteset.findFreeSlot();
    if (gotSlot <= 0)
        return NULL;

    if (!spriteset.doesSpriteExist(slot))
        quitprintf("DynamicSprite.CreateFromExistingSprite: sprite %d does not exist", slot);

    // create a new sprite as a copy of the existing one
    Bitmap *newPic = BitmapHelper::CreateBitmapCopy(spriteset[slot]);
    if (newPic == NULL)
        return NULL;

    bool hasAlpha = (preserveAlphaChannel) && ((game.spriteflags[slot] & SPF_ALPHACHANNEL) != 0);

    // replace the bitmap in the sprite set
    add_dynamic_sprite(gotSlot, newPic, hasAlpha);
    ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
    return new_spr;
}

ScriptDynamicSprite* DynamicSprite_CreateFromExistingSprite(int slot, int preserveAlphaChannel) {

    int gotSlot = spriteset.findFreeSlot();
    if (gotSlot <= 0)
        return NULL;

    if (!spriteset.doesSpriteExist(slot))
        quitprintf("DynamicSprite.CreateFromExistingSprite: sprite %d does not exist", slot);

    // create a new sprite as a copy of the existing one
    Bitmap *newPic = BitmapHelper::CreateBitmap(spritewidth[slot], spriteheight[slot], spriteset[slot]->GetColorDepth());
    if (newPic == NULL)
        return NULL;

    newPic->Blit(spriteset[slot], 0, 0, 0, 0, spritewidth[slot], spriteheight[slot]);

    bool hasAlpha = (preserveAlphaChannel) && ((game.spriteflags[slot] & SPF_ALPHACHANNEL) != 0);

    // replace the bitmap in the sprite set
    add_dynamic_sprite(gotSlot, newPic, hasAlpha);
    ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
    GlobalReturnValue.SetDynamicObject(new_spr, new_spr);
    return new_spr;
}

void add_dynamic_sprite(int gotSlot, Bitmap *redin, bool hasAlpha) {

  spriteset.set(gotSlot, redin);

  game.spriteflags[gotSlot] = SPF_DYNAMICALLOC;

  if (redin->GetColorDepth() > 8)
    game.spriteflags[gotSlot] |= SPF_HICOLOR;
  if (redin->GetColorDepth() > 16)
    game.spriteflags[gotSlot] |= SPF_TRUECOLOR;
  if (hasAlpha)
    game.spriteflags[gotSlot] |= SPF_ALPHACHANNEL;

  spritewidth[gotSlot] = redin->GetWidth();
  spriteheight[gotSlot] = redin->GetHeight();
}

int engine_init_sprites()
{
    Out::FPrint("Initialize sprites");

    if (spriteset.initFile ("acsprset.spr")) 
    {
        platform->FinishedUsingGraphicsMode();
        allegro_exit();
        proper_exit=1;
        platform->DisplayAlert("Could not load sprite set file ACSPRSET.SPR\n"
            "This means that the file is missing or there is not enough free\n"
            "system memory to load the file.\n");
        return EXIT_NORMAL;
    }

    return RETURN_CONTINUE;
}

void free_dynamic_sprite (int gotSlot) {
  int tt;

  if ((gotSlot < 0) || (gotSlot >= spriteset.elements))
    quit("!FreeDynamicSprite: invalid slot number");

  if ((game.spriteflags[gotSlot] & SPF_DYNAMICALLOC) == 0)
    quitprintf("!DeleteSprite: Attempted to free static sprite %d that was not loaded by the script", gotSlot);

  delete spriteset[gotSlot];
  spriteset.set(gotSlot, NULL);

  game.spriteflags[gotSlot] = 0;
  spritewidth[gotSlot] = 0;
  spriteheight[gotSlot] = 0;

  // ensure it isn't still on any GUI buttons
  for (tt = 0; tt < numguibuts; tt++) {
    if (guibuts[tt].IsDeleted())
      continue;
    if (guibuts[tt].Image == gotSlot)
      guibuts[tt].Image = 0;
    if (guibuts[tt].CurrentImage == gotSlot)
      guibuts[tt].CurrentImage = 0;
    if (guibuts[tt].MouseOverImage == gotSlot)
      guibuts[tt].MouseOverImage = 0;
    if (guibuts[tt].PushedImage == gotSlot)
      guibuts[tt].PushedImage = 0;
  }

  // force refresh of any object caches using the sprite
  if (croom != NULL) 
  {
    for (tt = 0; tt < croom->numobj; tt++) 
    {
      if (objs[tt].num == gotSlot)
      {
        objs[tt].num = 0;
        objcache[tt].sppic = -1;
      }
      else if (objcache[tt].sppic == gotSlot)
        objcache[tt].sppic = -1;
    }
  }
}

int IAGSEngine::CreateDynamicSprite(int32 coldepth, int32 width, int32 height) {

    int gotSlot = spriteset.findFreeSlot();
    if (gotSlot <= 0)
        return 0;

    if ((width < 1) || (height < 1))
        quit("!IAGSEngine::CreateDynamicSprite: invalid width/height requested by plugin");

    // resize the sprite to the requested size
    Bitmap *newPic = BitmapHelper::CreateTransparentBitmap(width, height, coldepth);
    if (newPic == NULL)
        return 0;

    // add it into the sprite set
    add_dynamic_sprite(gotSlot, newPic);
    return gotSlot;
}

ScriptDynamicSprite* DynamicSprite_Create(int width, int height, int alphaChannel) 
{
    multiply_up_coordinates(&width, &height);

    int gotSlot = spriteset.findFreeSlot();
    if (gotSlot <= 0)
        return NULL;

    Bitmap *newPic = BitmapHelper::CreateTransparentBitmap(width, height, System_GetColorDepth());
    if (newPic == NULL)
        return NULL;

    if ((alphaChannel) && (System_GetColorDepth() < 32))
        alphaChannel = false;

    add_dynamic_sprite(gotSlot, ReplaceBitmapWithSupportedFormat(newPic), alphaChannel != 0);
    ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
    return new_spr;
}

ScriptDynamicSprite* DynamicSprite_Create(int width, int height, int alphaChannel) 
{
    multiply_up_coordinates(&width, &height);

    int gotSlot = spriteset.findFreeSlot();
    if (gotSlot <= 0)
        return NULL;

    Bitmap *newPic = BitmapHelper::CreateBitmap(width, height, final_col_dep);
    if (newPic == NULL)
        return NULL;
    newPic->Clear(newPic->GetMaskColor());

    if ((alphaChannel) && (final_col_dep < 32))
        alphaChannel = false;

    add_dynamic_sprite(gotSlot, gfxDriver->ConvertBitmapToSupportedColourDepth(newPic), alphaChannel != 0);
    ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
    GlobalReturnValue.SetDynamicObject(new_spr, new_spr);
    return new_spr;
}

ScriptDynamicSprite* DynamicSprite_CreateFromBackground(int frame, int x1, int y1, int width, int height) {

    if (frame == SCR_NO_VALUE) {
        frame = play.bg_frame;
    }
    else if ((frame < 0) || (frame >= thisroom.num_bscenes))
        quit("!DynamicSprite.CreateFromBackground: invalid frame specified");

    if (x1 == SCR_NO_VALUE) {
        x1 = 0;
        y1 = 0;
        width = play.room_width;
        height = play.room_height;
    }
    else if ((x1 < 0) || (y1 < 0) || (width < 1) || (height < 1) ||
        (x1 + width > play.room_width) || (y1 + height > play.room_height))
        quit("!DynamicSprite.CreateFromBackground: invalid co-ordinates specified");

    multiply_up_coordinates(&x1, &y1);
    multiply_up_coordinates(&width, &height);

    int gotSlot = spriteset.findFreeSlot();
    if (gotSlot <= 0)
        return NULL;

    // create a new sprite as a copy of the existing one
    Bitmap *newPic = BitmapHelper::CreateBitmap(width, height, thisroom.ebscene[frame]->GetColorDepth());
    if (newPic == NULL)
        return NULL;

    newPic->Blit(thisroom.ebscene[frame], x1, y1, 0, 0, width, height);

    // replace the bitmap in the sprite set
    add_dynamic_sprite(gotSlot, newPic);
    ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
    GlobalReturnValue.SetDynamicObject(new_spr, new_spr);
    return new_spr;
}

void init_game_settings() {
    int ee;

    for (ee=0;ee<256;ee++) {
        if (game.paluses[ee]!=PAL_BACKGROUND)
            palette[ee]=game.defpal[ee];
    }

    if (game.options[OPT_NOSCALEFNT]) wtext_multiply=1;

    for (ee = 0; ee < game.numcursors; ee++) 
    {
        // The cursor graphics are assigned to mousecurs[] and so cannot
        // be removed from memory
        if (game.mcurs[ee].pic >= 0)
            spriteset.precache (game.mcurs[ee].pic);

        // just in case they typed an invalid view number in the editor
        if (game.mcurs[ee].view >= game.numviews)
            game.mcurs[ee].view = -1;

        if (game.mcurs[ee].view >= 0)
            precache_view (game.mcurs[ee].view);
    }
    // may as well preload the character gfx
    if (playerchar->view >= 0)
        precache_view (playerchar->view);

    for (ee = 0; ee < MAX_INIT_SPR; ee++)
        objcache[ee].image = NULL;

    /*  dummygui.guiId = -1;
    dummyguicontrol.guin = -1;
    dummyguicontrol.objn = -1;*/

    our_eip=-6;
    //  game.chars[0].talkview=4;
    //init_language_text(game.langcodes[0]);

    for (ee = 0; ee < MAX_INIT_SPR; ee++) {
        scrObj[ee].id = ee;
        // 64 bit: Using the id instead
        // scrObj[ee].obj = NULL;
    }

    for (ee=0;ee<game.numcharacters;ee++) {
        memset(&game.chars[ee].inv[0],0,MAX_INV*sizeof(short));
        game.chars[ee].activeinv=-1;
        game.chars[ee].following=-1;
        game.chars[ee].followinfo=97 | (10 << 8);
        game.chars[ee].idletime=20;  // can be overridden later with SetIdle or summink
        game.chars[ee].idleleft=game.chars[ee].idletime;
        game.chars[ee].transparency = 0;
        game.chars[ee].baseline = -1;
        game.chars[ee].walkwaitcounter = 0;
        game.chars[ee].z = 0;
        charextra[ee].xwas = INVALID_X;
        charextra[ee].zoom = 100;
        if (game.chars[ee].view >= 0) {
            // set initial loop to 0
            game.chars[ee].loop = 0;
            // or to 1 if they don't have up/down frames
            if (views[game.chars[ee].view].loops[0].numFrames < 1)
                game.chars[ee].loop = 1;
        }
        charextra[ee].process_idle_this_time = 0;
        charextra[ee].invorder_count = 0;
        charextra[ee].slow_move_counter = 0;
        charextra[ee].animwait = 0;
    }
    // multiply up gui positions
    guibg = (Bitmap **)malloc(sizeof(Bitmap *) * game.numgui);
    guibgbmp = (IDriverDependantBitmap**)malloc(sizeof(IDriverDependantBitmap*) * game.numgui);
    for (ee=0;ee<game.numgui;ee++) {
        guibg[ee] = NULL;
        guibgbmp[ee] = NULL;
    }

    our_eip=-5;
    for (ee=0;ee<game.numinvitems;ee++) {
        if (game.invinfo[ee].flags & IFLG_STARTWITH) playerchar->inv[ee]=1;
        else playerchar->inv[ee]=0;
    }
    play.score=0;
    play.sierra_inv_color=7;
    play.talkanim_speed = 5;
    play.inv_item_wid = 40;
    play.inv_item_hit = 22;
    play.messagetime=-1;
    play.disabled_user_interface=0;
    play.gscript_timer=-1;
    play.debug_mode=game.options[OPT_DEBUGMODE];
    play.inv_top=0;
    play.inv_numdisp=0;
    play.obsolete_inv_numorder=0;
    play.text_speed=15;
    play.text_min_display_time_ms = 1000;
    play.ignore_user_input_after_text_timeout_ms = 500;
    play.ignore_user_input_until_time = 0;
    play.lipsync_speed = 15;
//.........这里部分代码省略.........

void apply_config(const ConfigTree &cfg)
{
    {
#ifndef WINDOWS_VERSION
        usetup.digicard=INIreadint(cfg, "sound","digiid", DIGI_AUTODETECT);
        usetup.midicard=INIreadint(cfg, "sound","midiid", MIDI_AUTODETECT);
#else
        int idx = INIreadint(cfg, "sound","digiwinindx", -1);
        if (idx == 0)
            idx = DIGI_DIRECTAMX(0);
        else if (idx == 1)
            idx = DIGI_WAVOUTID(0);
        else if (idx == 2)
            idx = DIGI_NONE;
        else if (idx == 3) 
            idx = DIGI_DIRECTX(0);
        else 
            idx = DIGI_AUTODETECT;
        usetup.digicard = idx;

        idx = INIreadint(cfg, "sound","midiwinindx", -1);
        if (idx == 1)
            idx = MIDI_NONE;
        else if (idx == 2)
            idx = MIDI_WIN32MAPPER;
        else
            idx = MIDI_AUTODETECT;
        usetup.midicard = idx;
#endif
        psp_audio_multithreaded = INIreadint(cfg, "sound", "threaded", psp_audio_multithreaded);

        // Filter can also be set by command line
        // TODO: apply command line arguments to ConfigTree instead to override options read from config file
        const bool should_read_filter = usetup.Screen.Filter.ID.IsEmpty();
        // Legacy graphics settings has to be translated into new options;
        // they must be read first, to let newer options override them, if ones are present
        read_legacy_graphics_config(cfg, should_read_filter);

        // Graphics mode
        usetup.Screen.DriverID = INIreadstring(cfg, "graphics", "driver");

        usetup.Screen.DisplayMode.Windowed = INIreadint(cfg, "graphics", "windowed") > 0;
        const char *screen_sz_def_options[kNumScreenDef] = { "explicit", "scaling", "max" };
        usetup.Screen.DisplayMode.ScreenSize.SizeDef = usetup.Screen.DisplayMode.Windowed ? kScreenDef_ByGameScaling : kScreenDef_MaxDisplay;
        String screen_sz_def_str = INIreadstring(cfg, "graphics", "screen_def");
        for (int i = 0; i < kNumScreenDef; ++i)
        {
            if (screen_sz_def_str.CompareNoCase(screen_sz_def_options[i]) == 0)
            {
                usetup.Screen.DisplayMode.ScreenSize.SizeDef = (ScreenSizeDefinition)i;
                break;
            }
        }

        usetup.Screen.DisplayMode.ScreenSize.Size = Size(INIreadint(cfg, "graphics", "screen_width"),
                                                        INIreadint(cfg, "graphics", "screen_height"));
        usetup.Screen.DisplayMode.ScreenSize.MatchDeviceRatio = INIreadint(cfg, "graphics", "match_device_ratio", 1) != 0;
        // TODO: move to config overrides (replace values during config load)
#if defined(MAC_VERSION)
        usetup.Screen.Filter.ID = "none";
#else
        if (should_read_filter)
            usetup.Screen.Filter.ID = INIreadstring(cfg, "graphics", "filter", "StdScale");
        parse_scaling_option(INIreadstring(cfg, "graphics", "game_scale_fs", "proportional"), usetup.Screen.FsGameFrame);
        if (should_read_filter)
            parse_scaling_option(INIreadstring(cfg, "graphics", "game_scale_win", "max_round"), usetup.Screen.WinGameFrame);
#endif

        usetup.Screen.DisplayMode.RefreshRate = INIreadint(cfg, "graphics", "refresh");
        usetup.Screen.DisplayMode.VSync = INIreadint(cfg, "graphics", "vsync") > 0;
        usetup.RenderAtScreenRes = INIreadint(cfg, "graphics", "render_at_screenres") > 0;
        usetup.Supersampling = INIreadint(cfg, "graphics", "supersampling", 1);

        usetup.enable_antialiasing = INIreadint(cfg, "misc", "antialias") > 0;

        // This option is backwards (usevox is 0 if no_speech_pack)
        usetup.no_speech_pack = INIreadint(cfg, "sound", "usespeech", 1) == 0;

        usetup.user_data_dir = INIreadstring(cfg, "misc", "user_data_dir");
        usetup.shared_data_dir = INIreadstring(cfg, "misc", "shared_data_dir");

        usetup.translation = INIreadstring(cfg, "language", "translation");

        // TODO: move to config overrides (replace values during config load)
        // PSP: Don't let the setup determine the cache size as it is always too big.
#if !defined(PSP_VERSION)
        // the config file specifies cache size in KB, here we convert it to bytes
        spriteset.SetMaxCacheSize(INIreadint (cfg, "misc", "cachemax", DEFAULTCACHESIZE / 1024) * 1024);
#endif

        usetup.mouse_auto_lock = INIreadint(cfg, "mouse", "auto_lock") > 0;

        usetup.mouse_speed = INIreadfloat(cfg, "mouse", "speed", 1.f);
        if (usetup.mouse_speed <= 0.f)
            usetup.mouse_speed = 1.f;
        const char *mouse_ctrl_options[kNumMouseCtrlOptions] = { "never", "fullscreen", "always" };
        String mouse_str = INIreadstring(cfg, "mouse", "control", "fullscreen");
        for (int i = 0; i < kNumMouseCtrlOptions; ++i)
        {
            if (mouse_str.CompareNoCase(mouse_ctrl_options[i]) == 0)
//.........这里部分代码省略.........