src/game/renders/opengl/r_render.pas

   1 (* Copyright (C)  Doom 2D: Forever Developers
   2  *
   3  * This program is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, version 3 of the License ONLY.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14  *)
  15 {$INCLUDE ../../../shared/a_modes.inc}
  16 unit r_render;
  17
  18 interface
  19
  20   uses
  21     {$IFDEF ENABLE_MENU}
  22       g_gui,
  23     {$ENDIF}
  24     g_base // TRectWH
  25   ;
  26
  27   (* render startup *)
  28   procedure r_Render_Initialize;
  29   procedure r_Render_Finalize;
  30
  31   (* load globally used textures *)
  32   procedure r_Render_Load;
  33   procedure r_Render_Free;
  34
  35   (* load map specific textures *)
  36   procedure r_Render_LoadTextures;
  37   procedure r_Render_FreeTextures;
  38
  39   procedure r_Render_Update;
  40   procedure r_Render_Draw;
  41
  42   procedure r_Render_Resize (w, h: Integer);
  43   procedure r_Render_Apply;
  44
  45   function r_Render_WriteScreenShot (filename: String): Boolean;
  46
  47   {$IFDEF ENABLE_GIBS}
  48     function r_Render_GetGibRect (m, id: Integer): TRectWH;
  49   {$ENDIF}
  50
  51   {$IFDEF ENABLE_GFX}
  52     procedure r_Render_QueueEffect (AnimType, X, Y: Integer);
  53   {$ENDIF}
  54
  55   {$IFDEF ENABLE_TOUCH}
  56     // touch screen button location and size
  57     procedure r_Render_GetKeyRect (key: Integer; out x, y, w, h: Integer; out founded: Boolean);
  58   {$ENDIF}
  59
  60   {$IFDEF ENABLE_MENU}
  61     procedure r_Render_GetControlSize (ctrl: TGUIControl; out w, h: Integer);
  62     procedure r_Render_GetLogoSize (out w, h: Integer);
  63     procedure r_Render_GetMaxFontSize (BigFont: Boolean; out w, h: Integer);
  64     procedure r_Render_GetStringSize (BigFont: Boolean; str: String; out w, h: Integer);
  65   {$ENDIF}
  66
  67   procedure r_Render_DrawLoading (force: Boolean); // !!! remove it
  68
  69 implementation
  70
  71   uses
  72     {$IFDEF USE_GLES1}
  73       GLES11,
  74     {$ELSE}
  75       GL, GLEXT,
  76     {$ENDIF}
  77     {$IFDEF ENABLE_SYSTEM}
  78       g_system,
  79     {$ENDIF}
  80     SysUtils, Classes, Math,
  81     e_log, utils,
  82     g_game, g_options, g_console, g_player, g_weapons, g_language,
  83     g_net,
  84     r_draw, r_textures, r_fonts, r_map
  85   ;
  86
  87   var
  88     menuBG: TGLTexture;
  89
  90     stdfont: TGLFont;
  91     smallfont: TGLFont;
  92     menufont: TGLFont;
  93
  94     hud, hudbg: TGLTexture;
  95     hudhp: array [Boolean] of TGLTexture;
  96     hudap: TGLTexture;
  97     hudwp: array [0..WP_LAST] of TGLTexture;
  98     hudkey: array [0..2] of TGLTexture;
  99     hudair: TGLTexture;
 100     hudjet: TGLTexture;
 101
 102   procedure r_Render_LoadTextures;
 103   begin
 104     r_Map_LoadTextures;
 105   end;
 106
 107   procedure r_Render_FreeTextures;
 108   begin
 109     r_Map_FreeTextures;
 110   end;
 111
 112   function r_Render_LoadFont (const name: AnsiString): TGLFont;
 113     var info: TFontInfo; skiphack: Integer;
 114   begin
 115     result := nil;
 116     if name = 'STD' then skiphack := 144 else skiphack := 0;
 117     if r_Font_LoadInfoFromFile(GameWad + ':FONTS/' + name + 'TXT', info) then
 118       result := r_Textures_LoadFontFromFile(GameWad + ':FONTS/' + name + 'FONT', info, skiphack, true);
 119     if result = nil then
 120       e_logwritefln('failed to load font %s', [name]);
 121   end;
 122
 123   procedure r_Render_Load;
 124     const
 125       WeapName: array [0..WP_LAST] of AnsiString = ('KASTET', 'SAW', 'PISTOL', 'SHOTGUN1', 'SHOTGUN2', 'MGUN', 'RLAUNCHER', 'PGUN', 'BFG', 'SPULEMET', 'FLAMETHROWER');
 126     var
 127       i: Integer;
 128   begin
 129     menuBG := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/TITLE');
 130     stdfont := r_Render_LoadFont('STD');
 131     smallfont := r_Render_LoadFont('SMALL');
 132     menufont := r_Render_LoadFont('MENU');
 133     hud :=  r_Textures_LoadFromFile(GameWAD + ':TEXTURES/HUD');
 134     hudbg :=  r_Textures_LoadFromFile(GameWAD + ':TEXTURES/HUDBG');
 135     hudhp[false] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/MED2');
 136     hudhp[true] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/BMED');
 137     hudap := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/ARMORHUD');
 138     for i := 0 to WP_LAST do
 139       hudwp[i] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/' + WeapName[i]);
 140     hudkey[0] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYR');
 141     hudkey[1] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYG');
 142     hudkey[2] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYB');
 143     hudair := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/AIRBAR');
 144     hudjet := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/JETBAR');
 145     r_Map_Load;
 146   end;
 147
 148   procedure r_Render_Free;
 149     var i: Integer;
 150   begin
 151     r_Map_Free;
 152     hudjet.Free;
 153     hudair.Free;
 154     hudkey[0].Free;
 155     hudkey[1].Free;
 156     hudkey[2].Free;
 157     for i := 0 to WP_LAST do
 158     begin
 159       if hudwp[i] <> nil then
 160         hudwp[i].Free;
 161       hudwp[i] := nil;
 162     end;
 163     hudap.Free;
 164     hudhp[true].Free;
 165     hudhp[false].Free;
 166     hudbg.Free;
 167     hud.Free;
 168     menufont.Free;
 169     smallfont.Free;
 170     stdfont.Free;
 171     menuBG.Free;
 172   end;
 173
 174 {$IFDEF ENABLE_SYSTEM}
 175   function GetInfo (): TGLDisplayInfo;
 176     var info: TGLDisplayInfo;
 177   begin
 178     info := Default(TGLDisplayInfo);
 179     info.w := Max(1, gRC_Width);
 180     info.h := Max(1, gRC_Height);
 181     info.bpp := Max(1, gBPP);
 182     info.fullscreen := gRC_FullScreen;
 183     info.maximized := gRC_Maximized;
 184     info.major := 1;
 185     info.minor := 1;
 186     info.profile := TGLProfile.Compat;
 187     result := info;
 188   end;
 189 {$ENDIF}
 190
 191   procedure r_Render_Initialize;
 192   begin
 193     {$IFDEF ENABLE_SYSTEM}
 194       if sys_SetDisplayModeGL(GetInfo()) = False then
 195         raise Exception.Create('Failed to set videomode on startup.');
 196       sys_EnableVSync(gVSync);
 197     {$ENDIF}
 198     r_Textures_Initialize;
 199     r_Map_Initialize;
 200   end;
 201
 202   procedure r_Render_Finalize;
 203   begin
 204     r_Map_Finalize;
 205     r_Textures_Finalize;
 206   end;
 207
 208   procedure r_Render_Update;
 209   begin
 210     r_Map_Update;
 211   end;
 212
 213   procedure SetupMatrix;
 214   begin
 215     glViewport(0, 0, gScreenWidth, gScreenHeight);
 216     glScissor(0, 0, gScreenWidth, gScreenHeight);
 217     glMatrixMode(GL_PROJECTION);
 218     glLoadIdentity;
 219     glOrtho(0, gScreenWidth, gScreenHeight, 0, 0, 1);
 220     glMatrixMode(GL_MODELVIEW);
 221     glLoadIdentity;
 222   end;
 223
 224   procedure r_Render_DrawHUD (x, y: Integer; p: TPlayer);
 225     var t: TGLTexture; s: AnsiString;
 226   begin
 227     ASSERT(p <> nil);
 228
 229     r_Draw_TextureRepeat(hud, x, y, 196, 240, false, 255, 255, 255, 255, false);
 230     r_Draw_Text(p.name, x + 16, y + 8, 255, 0, 0, 255, smallfont); // TODO draw at center
 231
 232     t := hudhp[R_BERSERK in p.FRulez];
 233     r_Draw_Texture(t, x + 35, y + 45, t.width, t.height, false, 255, 255, 255, 255, false);
 234     r_Draw_Texture(hudap, x + 34, y + 77, hudap.width, hudap.height, false, 255, 255, 255, 255, false);
 235
 236     r_Draw_Text(IntToStr(MAX(0, p.health)), x + 105{178}, y + 40, 255, 0, 0, 255, menufont); // TODO draw at center
 237     r_Draw_Text(IntToStr(MAX(0, p.armor)), x + 105{178}, y + 68, 255, 0, 0, 255, menufont); // TODO draw at center
 238
 239     case p.CurrWeap of
 240       WEAPON_KASTET, WEAPON_SAW: s := '--';
 241       else s := IntToStr(p.GetAmmoByWeapon(p.CurrWeap));
 242     end;
 243     r_Draw_Text(s, x + 105, y + 158, 255, 0, 0, 255, menufont); // TODO draw at center
 244
 245     if p.CurrWeap <= WP_LAST then
 246     begin
 247       t := hudwp[p.CurrWeap];
 248       r_Draw_Texture(t, x + 18, y + 160, t.width, t.height, false, 255, 255, 255, 255, false);
 249     end;
 250
 251     if R_KEY_RED in p.FRulez then
 252       r_Draw_Texture(hudkey[0], x + 76, y + 214, 16, 16, false, 255, 255, 255, 255, false);
 253     if R_KEY_GREEN in p.FRulez then
 254       r_Draw_Texture(hudkey[1], x + 93, y + 214, 16, 16, false, 255, 255, 255, 255, false);
 255     if R_KEY_BLUE in p.FRulez then
 256       r_Draw_Texture(hudkey[2], x + 110, y + 214, 16, 16, false, 255, 255, 255, 255, false);
 257
 258     if p.JetFuel > 0 then
 259     begin
 260       r_Draw_Texture(hudair, x, y + 116, hudair.width, hudair.height, false, 255, 255, 255, 255, false);
 261       if p.air > 0 then
 262         r_Draw_FillRect(x + 14, y + 116 + 4, x + 14 + 168 * p.air div AIR_MAX, y + 116 + 4 + 4, 0, 0, 196, 255);
 263       r_Draw_Texture(hudjet, x, y + 126, hudjet.width, hudjet.height, false, 255, 255, 255, 255, false);
 264       r_Draw_FillRect(x + 14, y + 126 + 4, x + 14 + 168 * p.JetFuel div JET_MAX, y + 126 + 4 + 4, 208, 0, 0, 255);
 265     end
 266     else
 267     begin
 268       r_Draw_Texture(hudair, x, y + 124, hudair.width, hudair.height, false, 255, 255, 255, 255, false);
 269       if p.air > 0 then
 270         r_Draw_FillRect(x + 14, y + 124 + 4, x + 14 + 168 * p.air div AIR_MAX, y + 124 + 4 + 4, 0, 0, 196, 255);
 271     end;
 272   end;
 273
 274   procedure r_Render_DrawHUDArea (x, y, w, h: Integer; p: TPlayer);
 275     var s: AnsiString;
 276   begin
 277     r_Draw_TextureRepeat(hudbg, x, y, w, h, false, 255, 255, 255, 255, false);
 278
 279     if p <> nil then
 280       r_Render_DrawHUD(x + w - 196 + 2, y, p);
 281
 282     if gShowPing and g_Game_IsClient then
 283     begin
 284       s := _lc[I_GAME_PING_HUD] + IntToStr(NetPeer.lastRoundTripTime) + _lc[I_NET_SLIST_PING_MS];
 285       r_Draw_Text(s, x + 4, y + 242, 255, 255, 255, 255, stdfont);
 286     end;
 287
 288     if p.Spectator then
 289     begin
 290       r_Draw_Text(_lc[I_PLAYER_SPECT], x + 4, y + 242, 255, 255, 255, 255, stdfont);
 291       r_Draw_Text(_lc[I_PLAYER_SPECT2], x + 4, y + 258, 255, 255, 255, 255, stdfont);
 292       r_Draw_Text(_lc[I_PLAYER_SPECT1], x + 4, y + 274, 255, 255, 255, 255, stdfont);
 293       if p.NoRespawn then
 294         r_Draw_Text(_lc[I_PLAYER_SPECT1S], x + 4, y + 290, 255, 255, 255, 255, stdfont);
 295     end;
 296   end;
 297
 298   procedure r_Render_DrawView (x, y, w, h: Integer; p: TPlayer);
 299   begin
 300     if p <> nil then
 301       r_Map_Draw(x, y, w, h, p.obj.x + PLAYER_RECT_CX, p.obj.y + PLAYER_RECT_CY, p)
 302     else
 303       r_Map_Draw(x, y, w, h, 0, 0, nil);
 304
 305     // TODO draw stats
 306
 307     if p <> nil then
 308     begin
 309       if p.Spectator and p.NoRespawn then
 310       begin
 311         // TODO draw at center
 312         r_Draw_Text(_lc[I_PLAYER_SPECT4], x div 2 + w div 2, y div 2 + h div 2, 255, 255, 255, 255, stdfont);
 313       end;
 314     end;
 315   end;
 316
 317   procedure r_Render_DrawPlayerView (x, y, w, h: Integer; p: TPlayer);
 318   begin
 319     r_Render_DrawView(x, y, w - 196, h, p);
 320     r_Render_DrawHUDArea(x + w - 196, y, 196, h, p);
 321   end;
 322
 323   procedure r_Render_Draw;
 324   begin
 325     if gExit = EXIT_QUIT then
 326       exit;
 327
 328     SetupMatrix;
 329
 330     glClearColor(0.0, 0.0, 0.0, 0.0);
 331     glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
 332
 333     glColor4ub(255, 255, 255, 255);
 334
 335     //e_LogWritefln('r_render_draw: %sx%s', [gScreenWidth, gScreenHeight]);
 336
 337     if gGameOn or (gState = STATE_FOLD) then
 338     begin
 339       // TODO setup player view
 340       // TODO setup sectator mode
 341       // TODO setup player hear point
 342       // TODO setup player view siz
 343
 344       // TODO draw player view + setup screen coords
 345       r_Render_DrawPlayerView(0, 0, gScreenWidth, gScreenHeight, gPlayer1);
 346
 347       // TODO draw holmes inspector
 348
 349       // TODO draw messages
 350       // TODO draw stats (?)
 351       // TODO draw spectator hud
 352     end;
 353
 354     if gPauseMain and gGameOn {$IFDEF ENABLE_MENU}and (g_ActiveWindow = nil){$ENDIF} then
 355     begin
 356       // TODO draw pause screen
 357     end;
 358
 359     if not gGameOn then
 360     begin
 361       case gState of
 362         STATE_MENU: ; // TODO draw menu bg
 363         STATE_FOLD: ;
 364         STATE_INTERCUSTOM: ;
 365         STATE_INTERSINGLE: ;
 366         STATE_ENDPIC: ;
 367         STATE_SLIST: ;
 368       end;
 369     end;
 370
 371     {$IFDEF ENABLE_MENU}
 372       if g_ActiveWindow <> nil then
 373       begin
 374         // TODO draw menu widgets
 375       end;
 376     {$ENDIF}
 377
 378     // TODO draw console
 379
 380     // TODO draw holmes interface
 381
 382     glFinish();
 383     glFlush();
 384     sys_Repaint;
 385   end;
 386
 387   procedure r_Render_Resize (w, h: Integer);
 388   begin
 389     gWinSizeX := w;
 390     gWinSizeY := h;
 391     gRC_Width := w;
 392     gRC_Height := h;
 393     gScreenWidth := w;
 394     gScreenHeight := h;
 395   end;
 396
 397   procedure r_Render_Apply;
 398   begin
 399     {$IFDEF ENABLE_SYSTEM}
 400       if sys_SetDisplayModeGL(GetInfo()) then
 401         e_LogWriteln('resolution changed')
 402       else
 403         e_LogWriteln('resolution not changed');
 404       sys_EnableVSync(gVSync)
 405     {$ENDIF}
 406   end;
 407
 408   function r_Render_WriteScreenShot (filename: String): Boolean;
 409   begin
 410     Result := False;
 411   end;
 412
 413 {$IFDEF ENABLE_GIBS}
 414   function r_Render_GetGibRect (m, id: Integer): TRectWH;
 415   begin
 416     result := r_Map_GetGibSize(m, id);
 417   end;
 418 {$ENDIF}
 419
 420 {$IFDEF ENABLE_GFX}
 421   procedure r_Render_QueueEffect (AnimType, X, Y: Integer);
 422   begin
 423     r_Map_NewGFX(AnimType, X, Y);
 424   end;
 425 {$ENDIF}
 426
 427 {$IFDEF ENABLE_TOUCH}
 428   procedure r_Render_GetKeyRect (key: Integer; out x, y, w, h: Integer; out founded: Boolean);
 429   begin
 430     founded := False;
 431   end;
 432 {$ENDIF}
 433
 434 {$IFDEF ENABLE_MENU}
 435   procedure r_Render_GetControlSize (ctrl: TGUIControl; out w, h: Integer);
 436   begin
 437     w := 0; h := 0;
 438   end;
 439
 440   procedure r_Render_GetLogoSize (out w, h: Integer);
 441   begin
 442     w := 0; h := 0;
 443   end;
 444
 445   procedure r_Render_GetMaxFontSize (BigFont: Boolean; out w, h: Integer);
 446   begin
 447     w := 0; h := 0;
 448   end;
 449
 450   procedure r_Render_GetStringSize (BigFont: Boolean; str: String; out w, h: Integer);
 451   begin
 452     w := 0; h := 0;
 453   end;
 454 {$ENDIF}
 455
 456   procedure r_Render_DrawLoading (force: Boolean);
 457   begin
 458   end;
 459
 460 end.