render: move screen resize handler from io-driver

[d2df-sdl.git] / src / game / sdl2 / g_system.pas

diff --git a/src/game/sdl2/g_system.pas b/src/game/sdl2/g_system.pas
index 694042c37dea2db0f756e690b4d14a00f63f16e7..5468afb36645a728039d44582cae616022672cf9 100644 (file)
--- a/src/game/sdl2/g_system.pas
+++ b/src/game/sdl2/g_system.pas
@@ -37,16 +37,20 @@ interface
   procedure sys_Init;
   procedure sys_Final;
 
+  var (* hooks *)
+    sys_CharPress: procedure (ch: AnsiChar) = nil;
+    sys_ScreenResize: procedure (w, h: Integer) = nil;
+
 implementation
 
   uses
     SysUtils, SDL2, Math, ctypes,
-    e_log, e_graphics, e_input, e_sound,
+    e_log, r_graphics, e_input, e_sound,
     {$INCLUDE ../nogl/noGLuses.inc}
     {$IFDEF ENABLE_HOLMES}
       g_holmes, sdlcarcass, fui_ctls,
     {$ENDIF}
-    g_touch, g_options, g_window, g_console, g_game, g_menu, g_gui, g_main, g_basic;
+    g_touch, g_options, g_console, g_game, g_menu, g_gui, g_basic;
 
   const
     GameTitle = 'Doom 2D: Forever (SDL 2, %s)';
@@ -74,28 +78,25 @@ implementation
 
   (* --------- Graphics --------- *)
 
-  procedure UpdateSize (w, h: Integer);
+  function LoadGL: Boolean;
   begin
-    gWinSizeX := w;
-    gWinSizeY := h;
-    gScreenWidth := w;
-    gScreenHeight := h;
-    gRC_Width := w;
-    gRC_Height := h;
-    {$IFDEF ENABLE_HOLMES}
-      fuiScrWdt := w;
-      fuiScrHgt := h;
-    {$ENDIF}
-    e_ResizeWindow(w, h);
-    e_InitGL;
-    g_Game_SetupScreenSize;
-    {$IFNDEF ANDOIRD}
-      (* This will fix menu reset on keyboard showing *)
-      g_Menu_Reset;
+    result := true;
+    {$IFDEF NOGL_INIT}
+    nogl_Init;
+    if glRenderToFBO and (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) then
+    {$ELSE}
+    if glRenderToFBO and (not Load_GL_ARB_framebuffer_object) then
     {$ENDIF}
-    g_Game_ClearLoading;
-    {$IFDEF ENABLE_HOLMES}
-      if assigned(oglInitCB) then oglInitCB;
+    begin
+      e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering');
+      glRenderToFBO := false;
+    end;
+  end;
+
+  procedure FreeGL;
+  begin
+    {$IFDEF NOGL_INIT}
+    nogl_Quit();
     {$ENDIF}
   end;
 
@@ -149,9 +150,12 @@ implementation
         context := SDL_GL_CreateContext(window);
         if context <> nil then
         begin
-          {$IFDEF NOGL_INIT}
-            nogl_Init;
-          {$ENDIF}
+          if not LoadGL then
+          begin
+            e_LogWriteln('GL: unable to load OpenGL functions', TMsgType.Fatal);
+            SDL_GL_DeleteContext(context); context := nil;
+            exit;
+          end;
           if (fullscreen = false) and (maximized = false) and (wc = false) then
           begin
             SDL_GetWindowPosition(window, @x, @y);
@@ -161,7 +165,8 @@ implementation
           gWinMaximized := maximized;
           gRC_FullScreen := fullscreen;
           gRC_Maximized := maximized;
-          UpdateSize(w, h);
+          if @sys_ScreenResize <> nil then
+            sys_ScreenResize(w, h);
           result := true
         end
         else
@@ -177,8 +182,12 @@ implementation
     end
     else
     begin
+      if fullScreen then flags := SDL_WINDOW_FULLSCREEN else flags := 0;
+      SDL_SetWindowFullscreen(window, flags);
       SDL_SetWindowSize(window, w, h);
-      if wc then
+      if maximized then SDL_MaximizeWindow(window);
+      // always reset to center when changing fullscreen->windowed for safety purposes
+      if wc or (gFullscreen and not fullscreen) or (gWinMaximized and not maximized) then
       begin
         x := SDL_WINDOWPOS_CENTERED;
         y := SDL_WINDOWPOS_CENTERED
@@ -194,15 +203,12 @@ implementation
         SDL_GetWindowPosition(window, @x, @y);
         wx := x; wy := y
       end;
-      if maximized then
-        SDL_MaximizeWindow(window);
-      if fullScreen then flags := SDL_WINDOW_FULLSCREEN else flags := 0;
-      SDL_SetWindowFullscreen(window, flags);
       gFullScreen := fullscreen;
       gWinMaximized := maximized;
       gRC_FullScreen := fullscreen;
       gRC_Maximized := maximized;
-      UpdateSize(w, h);
+      if @sys_ScreenResize <> nil then
+        sys_ScreenResize(w, h);
       result := true
     end
   end;
@@ -410,7 +416,9 @@ implementation
     if g_dbg_input then
       e_LogWritefln('Window Event: event = %s, data1 = %s, data2 = %s', [ev.event, ev.data1, ev.data2]);
     case ev.event of
-      SDL_WINDOWEVENT_RESIZED: UpdateSize(ev.data1, ev.data2);
+      SDL_WINDOWEVENT_RESIZED:
+        if @sys_ScreenResize <> nil then
+          sys_ScreenResize(ev.data1, ev.data2);
       SDL_WINDOWEVENT_EXPOSED: sys_Repaint;
       SDL_WINDOWEVENT_CLOSE: result := true;
       SDL_WINDOWEVENT_MOVED:
@@ -469,9 +477,11 @@ implementation
       e_KeyUpDown(key, down);
       g_Console_ProcessBind(key, down);
     end
-    else if gConsoleShow or gChatShow or (g_ActiveWindow <> nil) then
+    else
     begin
-      KeyPress(key) // key repeat in menus and shit
+      if g_dbg_input then
+        e_LogWritefln('Input Debug: keyrep, scancode=%s', [key]);
+      g_Console_ProcessBindRepeat(key);
     end
   end;
 
@@ -482,8 +492,9 @@ implementation
     sch := AnsiChar(wchar2win(ch));
     if g_dbg_input then
       e_LogWritefln('Input Debug: text, text="%s", ch = %s, sch = %s', [ev.text, Ord(ch), Ord(sch)]);
-    if IsValid1251(Word(ch)) and IsPrintable1251(ch) then
-      CharPress(sch);
+    if @sys_CharPress <> nil then
+      if IsValid1251(Word(ch)) and IsPrintable1251(ch) then
+        sys_CharPress(sch)
   end;
 
   function sys_HandleInput (): Boolean;
@@ -548,9 +559,7 @@ implementation
     e_WriteLog('Releasing SDL2', TMsgType.Notify);
     if context <> nil then
     begin
-      {$IFDEF NOGL_INIT}
-        nogl_Quit;
-      {$ENDIF}
+      FreeGL;
       SDL_GL_DeleteContext(context);
       context := nil;
     end;