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path: root/backends/platform/dc/selector.cpp
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/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#define FORBIDDEN_SYMBOL_ALLOW_ALL

#include <common/scummsys.h>
#include <engines/engine.h>
#include <engines/metaengine.h>
#include <engines/game.h>
#include <base/plugins.h>
#include <common/fs.h>
#include <common/events.h>
#include <common/config-manager.h>
#include "dc.h"
#include "icon.h"
#include "label.h"

#include <ronin/gddrive.h>


#define MAX_GAMES 100
#define MAX_DIR 100


void draw_solid_quad(float x1, float y1, float x2, float y2,
		     int c0, int c1, int c2, int c3)
{
  struct polygon_list mypoly;
  struct packed_colour_vertex_list myvertex;

  mypoly.cmd =
    TA_CMD_POLYGON|TA_CMD_POLYGON_TYPE_OPAQUE|TA_CMD_POLYGON_SUBLIST|
    TA_CMD_POLYGON_STRIPLENGTH_2|TA_CMD_POLYGON_PACKED_COLOUR|
    TA_CMD_POLYGON_GOURAUD_SHADING;
  mypoly.mode1 = TA_POLYMODE1_Z_ALWAYS|TA_POLYMODE1_NO_Z_UPDATE;
  mypoly.mode2 =
    TA_POLYMODE2_BLEND_SRC|TA_POLYMODE2_FOG_DISABLED;
  mypoly.texture = 0;

  mypoly.red = mypoly.green = mypoly.blue = mypoly.alpha = 0;

  ta_commit_list(&mypoly);

  myvertex.cmd = TA_CMD_VERTEX;
  myvertex.ocolour = 0;
  myvertex.z = 0.5;
  myvertex.u = 0.0;
  myvertex.v = 0.0;

  myvertex.colour = c0;
  myvertex.x = x1;
  myvertex.y = y1;
  ta_commit_list(&myvertex);

  myvertex.colour = c1;
  myvertex.x = x2;
  ta_commit_list(&myvertex);

  myvertex.colour = c2;
  myvertex.x = x1;
  myvertex.y = y2;
  ta_commit_list(&myvertex);

  myvertex.colour = c3;
  myvertex.x = x2;
  myvertex.cmd |= TA_CMD_VERTEX_EOS;
  ta_commit_list(&myvertex);
}

void draw_trans_quad(float x1, float y1, float x2, float y2,
		     int c0, int c1, int c2, int c3)
{
  struct polygon_list mypoly;
  struct packed_colour_vertex_list myvertex;

  mypoly.cmd =
    TA_CMD_POLYGON|TA_CMD_POLYGON_TYPE_TRANSPARENT|TA_CMD_POLYGON_SUBLIST|
    TA_CMD_POLYGON_STRIPLENGTH_2|TA_CMD_POLYGON_PACKED_COLOUR|
    TA_CMD_POLYGON_GOURAUD_SHADING;
  mypoly.mode1 = TA_POLYMODE1_Z_ALWAYS|TA_POLYMODE1_NO_Z_UPDATE;
  mypoly.mode2 =
    TA_POLYMODE2_BLEND_SRC_ALPHA|TA_POLYMODE2_BLEND_DST_INVALPHA|
    TA_POLYMODE2_FOG_DISABLED|TA_POLYMODE2_ENABLE_ALPHA;
  mypoly.texture = 0;

  mypoly.red = mypoly.green = mypoly.blue = mypoly.alpha = 0;

  ta_commit_list(&mypoly);

  myvertex.cmd = TA_CMD_VERTEX;
  myvertex.ocolour = 0;
  myvertex.z = 0.5;
  myvertex.u = 0.0;
  myvertex.v = 0.0;

  myvertex.colour = c0;
  myvertex.x = x1;
  myvertex.y = y1;
  ta_commit_list(&myvertex);

  myvertex.colour = c1;
  myvertex.x = x2;
  ta_commit_list(&myvertex);

  myvertex.colour = c2;
  myvertex.x = x1;
  myvertex.y = y2;
  ta_commit_list(&myvertex);

  myvertex.colour = c3;
  myvertex.x = x2;
  myvertex.cmd |= TA_CMD_VERTEX_EOS;
  ta_commit_list(&myvertex);
}


struct Game
{
  char dir[256];
  char filename_base[256];
  char text[256];
  Common::Language language;
  Common::Platform platform;
  Icon icon;
  Label label;
};

struct Dir
{
  char name[252];
  char deficon[256];
  Common::FSNode node;
};

static Game the_game;

static bool isIcon(const Common::FSNode &entry)
{
  int l = entry.getDisplayName().size();
  if (l>4 && !strcasecmp(entry.getDisplayName().c_str()+l-4, ".ICO"))
    return true;
  else
    return false;
}

static bool loadIcon(Game &game, Dir *dirs, int num_dirs)
{
  char icofn[520];
  sprintf(icofn, "%s%s.ICO", game.dir, game.filename_base);
  if (game.icon.load(icofn))
    return true;
  for (int i=0; i<num_dirs; i++)
    if (!strcmp(dirs[i].name, game.dir) &&
       dirs[i].deficon[0]) {
      sprintf(icofn, "%s%s", game.dir, dirs[i].deficon);
      if (game.icon.load(icofn))
	return true;
      break;
    }
  return false;
}

static void makeDefIcon(Icon &icon)
{
#include "deficon.h"
  icon.load(scummvm_icon, sizeof(scummvm_icon));
}

static bool sameOrSubdir(const char *dir1, const char *dir2)
{
  int l1 = strlen(dir1), l2 = strlen(dir2);
  if (l1<=l2)
    return !strcmp(dir1, dir2);
  else
    return !memcmp(dir1, dir2, l2);
}

static bool uniqueGame(const char *base, const char *dir,
		       Common::Language lang, Common::Platform plf,
		       Game *games, int cnt)
{
  while (cnt--)
    if (/*Don't detect the same game in a subdir,
	  this is a workaround for the detector bug in toon... */
	sameOrSubdir(dir, games->dir) &&
	/*!strcmp(dir, games->dir) &&*/
	!stricmp(base, games->filename_base) &&
	lang == games->language &&
	plf == games->platform)
      return false;
    else
      games++;
  return true;
}

static int findGames(Game *games, int max, bool use_ini)
{
  Dir *dirs = new Dir[MAX_DIR];
  int curr_game = 0, curr_dir = 0, num_dirs = 0;

  if (use_ini) {
    ConfMan.loadDefaultConfigFile();
    Common::ConfigManager::DomainMap &game_domains = ConfMan.getGameDomains();
    for(Common::ConfigManager::DomainMap::const_iterator i =
	  game_domains.begin(); curr_game < max && i != game_domains.end(); i++) {
      Common::String path = (*i)._value["path"];
      if (path.size() && path.lastChar() != '/')
	path += "/";
      int j;
      for (j=0; j<num_dirs; j++)
	if (path.equals(dirs[j].node.getPath()))
	  break;
      if (j >= num_dirs) {
	if (num_dirs >= MAX_DIR)
	  continue;
	dirs[j = num_dirs++].node = Common::FSNode(path);
      }
      if (curr_game < max) {
	strcpy(games[curr_game].filename_base, (*i)._key.c_str());
	strncpy(games[curr_game].dir, dirs[j].node.getPath().c_str(), 256);
	games[curr_game].dir[255] = '\0';
	games[curr_game].language = Common::UNK_LANG;
	games[curr_game].platform = Common::kPlatformUnknown;
	strcpy(games[curr_game].text, (*i)._value["description"].c_str());
	curr_game++;
      }
    }
  } else {
    dirs[num_dirs++].node = Common::FSNode("");
  }

  while ((curr_game < max || use_ini) && curr_dir < num_dirs) {
    strncpy(dirs[curr_dir].name, dirs[curr_dir].node.getPath().c_str(), 251);
    dirs[curr_dir].name[250] = '\0';
    if (!dirs[curr_dir].name[0] ||
	dirs[curr_dir].name[strlen(dirs[curr_dir].name)-1] != '/')
      strcat(dirs[curr_dir].name, "/");
    dirs[curr_dir].deficon[0] = '\0';
    Common::FSList files, fslist;
    dirs[curr_dir++].node.getChildren(fslist, Common::FSNode::kListAll);
    for (Common::FSList::const_iterator entry = fslist.begin(); entry != fslist.end();
	 ++entry) {
      if (entry->isDirectory()) {
	if (!use_ini && num_dirs < MAX_DIR) {
	  dirs[num_dirs].node = *entry;
	  num_dirs++;
	}
	/* Toonstruck detector needs directories to be present too */
	if(!use_ini)
	  files.push_back(*entry);
      } else
	if (isIcon(*entry))
	  strcpy(dirs[curr_dir-1].deficon, entry->getDisplayName().c_str());
	else if(!use_ini)
	  files.push_back(*entry);
    }

    if (!use_ini) {
      GameList candidates = EngineMan.detectGames(files);

      for (GameList::const_iterator ge = candidates.begin();
	   ge != candidates.end(); ++ge)
	if (curr_game < max) {
	  strcpy(games[curr_game].filename_base, ge->gameid().c_str());
	  strcpy(games[curr_game].dir, dirs[curr_dir-1].name);
	  games[curr_game].language = ge->language();
	  games[curr_game].platform = ge->platform();
	  if (uniqueGame(games[curr_game].filename_base,
			 games[curr_game].dir,
			 games[curr_game].language,
			 games[curr_game].platform, games, curr_game)) {

	    strcpy(games[curr_game].text, ge->description().c_str());
#if 0
	    printf("Registered game <%s> (l:%d p:%d) in <%s> <%s> because of <%s> <*>\n",
		   games[curr_game].text,
		   (int)games[curr_game].language,
		   (int)games[curr_game].platform,
		   games[curr_game].dir, games[curr_game].filename_base,
		   dirs[curr_dir-1].name);
#endif
	    curr_game++;
	  }
	}
    }
  }

  for (int i=0; i<curr_game; i++)
    if (!loadIcon(games[i], dirs, num_dirs))
      makeDefIcon(games[i].icon);
  delete[] dirs;
  return curr_game;
}

int getCdState()
{
  unsigned int param[4];
  gdGdcGetDrvStat(param);
  return param[0];
}

static void drawBackground()
{
  draw_solid_quad(20.0, 20.0, 620.0, 460.0,
		  0xff0000, 0x00ff00, 0x0000ff, 0xffffff);
}

void waitForDisk()
{
  Label lab;
  int wasopen = 0;
  ta_sync();
  void *mark = ta_txmark();
  lab.create_texture("Please insert game CD.");
  //printf("waitForDisk, cdstate = %d\n", getCdState());
  for (;;) {
    int s = getCdState();
    if (s >= 6)
      wasopen = 1;
    if (s > 0 && s < 6 && wasopen) {
      cdfs_reinit();
      chdir("/");
      chdir("/");
      ta_sync();
      ta_txrelease(mark);
      return;
    }

    ta_begin_frame();

    drawBackground();

    ta_commit_end();

    lab.draw(166.0, 200.0, 0xffff2020);

    ta_commit_frame();

    int mousex = 0, mousey = 0;
    byte shiftFlags;

    int mask = getimask();
    setimask(15);
    handleInput(locked_get_pads(), mousex, mousey, shiftFlags);
    setimask(mask);
  }
}

static void drawGameLabel(Game &game, int pal, float x, float y,
			  unsigned int argb, int fade = 0, float scale = 1.0)
{
  unsigned int fade_alpha = (255-fade)<<24;

  game.icon.draw(x, y, x+32.0*scale, y+32.0*scale, pal, 0xffffff|fade_alpha);
  game.label.draw(x+54.0*scale, y+4.0*scale, argb|fade_alpha, scale);
}

int gameMenu(Game *games, int num_games)
{
  int top_game = 0, selector_pos = 0;
  int mousex = 0, mousey = 0;
  float y;

  if (!num_games)
    return -1;

  for (;;) {

    if (getCdState()>=6)
      return -1;

    ta_begin_frame();

    drawBackground();

    ta_commit_end();

    y = 40.0;
    for (int i=top_game, cnt=0; cnt<10 && i<num_games; i++, cnt++) {
      int pal = 48+(i&15);

      if (cnt == selector_pos)
	draw_trans_quad(100.0, y, 590.0, y+32.0,
			0x7000ff00, 0x7000ff00, 0x7000ff00, 0x7000ff00);

      games[i].icon.setPalette(pal);
      drawGameLabel(games[i], pal, 50.0, y, (cnt == selector_pos?
					     0xffff00 : 0xffffff));
      y += 40.0;
    }

    ta_commit_frame();

    byte shiftFlags;
    int event;

    int mask = getimask();
    setimask(15);
    event = handleInput(locked_get_pads(), mousex, mousey, shiftFlags);
    setimask(mask);

    if (event==-Common::EVENT_LBUTTONDOWN || event==Common::KEYCODE_RETURN || event==Common::KEYCODE_F5) {
      int selected_game = top_game + selector_pos;

      for (int fade=0; fade<=256; fade+=4) {

	ta_begin_frame();

	drawBackground();

	ta_commit_end();

	y = 40.0;

	if (fade < 256)
	  for (int i=top_game, cnt=0; cnt<10 && i<num_games;
	      i++, cnt++, y += 40.0)
	    if (cnt != selector_pos)
	      drawGameLabel(games[i], 48+(i&15), 50.0, y, 0xffffff, fade);

	y = (40.0/256.0 * (selector_pos + 1))*(256-fade) + 80.0/256.0*fade;
	float x = 50.0/256.0*(256-fade) + 160.0/256.0*fade;
	float scale = 1.0+9.0/256.0*fade;

	drawGameLabel(games[selected_game], 48+(selected_game&15), x, y,
		      0xffff00, 0, scale);

	ta_commit_frame();
      }
      return selected_game;
    }

    if (mousey>=16) {
      if (selector_pos + top_game + 1 < num_games)
	if (++selector_pos >= 10) {
	  --selector_pos;
	  ++top_game;
	}
      mousey -= 16;
    } else if (mousey<=-16) {
      if (selector_pos + top_game > 0)
	if (--selector_pos < 0) {
	  ++selector_pos;
	  --top_game;
	}
      mousey += 16;
    }
  }
}

bool selectGame(char *&ret, char *&dir_ret, Common::Language &lang_ret, Common::Platform &plf_ret, Icon &icon)
{
  Game *games = new Game[MAX_GAMES];
  int selected, num_games;

  ta_sync();
  void *mark = ta_txmark();

  for (;;) {
    num_games = findGames(games, MAX_GAMES, true);
    if (!num_games)
      num_games = findGames(games, MAX_GAMES, false);

    for (int i=0; i<num_games; i++) {
      games[i].icon.create_texture();
      games[i].label.create_texture(games[i].text);
    }

    selected = gameMenu(games, num_games);

    ta_sync();
    ta_txrelease(mark);

    if (selected == -1)
      waitForDisk();
    else
      break;

  }

  if (selected >= num_games)
    selected = -1;

  if (selected >= 0)
    the_game = games[selected];

  delete[] games;

  if (selected>=0) {
#if 0
    chdir(the_game.dir);
#else
    chdir("/");
    dir_ret = the_game.dir;
#endif
    ret = the_game.filename_base;
    lang_ret = the_game.language;
    plf_ret = the_game.platform;
    icon = the_game.icon;
    return true;
  } else
    return false;
}