From: Ketmar Dark <ketmar@ketmar.no-ip.org>
Date: Tue, 6 Feb 2018 20:11:55 +0000 (+0200)
Subject: hackfix for video resolution change (still not working right, see commit text)
X-Git-Url: http://deadsoftware.ru/gitweb?a=commitdiff_plain;h=1f93eba25d342649a8eaccdf8f690ff4d8cc0dfc;p=d2df-sdl.git

hackfix for video resolution change (still not working right, see commit text)

  changing to fullscreen is not working right, 'cause we need to
  recreate OpenGL context (and reupload all textures). without this,
  fullscreen window is created with fucked size for some reason.
---

diff --git a/src/game/g_game.pas b/src/game/g_game.pas
index 8e7174f..918a947 100644
--- a/src/game/g_game.pas
+++ b/src/game/g_game.pas
@@ -1986,6 +1986,7 @@ begin
       e_WriteLog('Changing resolution', TMsgType.Notify);
       g_Game_ChangeResolution(gRC_Width, gRC_Height, gRC_FullScreen, gRC_Maximized);
       gResolutionChange := False;
+      g_ActiveWindow := nil;
     end;
 
   // Íóæíî ñìåíèòü ÿçûê:
@@ -3764,7 +3765,7 @@ begin
   g_PlayerModel_FreeData();
   g_Texture_DeleteAll();
   g_Frames_DeleteAll();
-  g_Menu_Free();
+  //g_Menu_Free(); //k8: this segfaults after resolution change; who cares?
 
   if NetInitDone then g_Net_Free;
 
diff --git a/src/game/g_window.pas b/src/game/g_window.pas
index 3dbd620..a40441b 100644
--- a/src/game/g_window.pas
+++ b/src/game/g_window.pas
@@ -24,8 +24,6 @@ uses
 function SDLMain (): Integer;
 function GetTimer (): Int64;
 procedure ResetTimer ();
-function CreateGLWindow (Title: PChar): Boolean;
-procedure KillGLWindow ();
 procedure PushExitEvent ();
 function ProcessMessage (): Boolean;
 procedure ReDrawWindow ();
@@ -81,13 +79,13 @@ var
 {$ENDIF}
 
 
-procedure KillGLWindow ();
+procedure KillGLWindow (preserveGL: Boolean);
 begin
-  if (h_GL <> nil) then begin if (assigned(oglDeinitCB)) then oglDeinitCB(); end;
+  if (h_GL <> nil) and (not preserveGL) then begin if (assigned(oglDeinitCB)) then oglDeinitCB(); end;
   if (h_Wnd <> nil) then SDL_DestroyWindow(h_Wnd);
-  if (h_GL <> nil) then SDL_GL_DeleteContext(h_GL);
+  if (h_GL <> nil) and (not preserveGL) then SDL_GL_DeleteContext(h_GL);
   h_Wnd := nil;
-  h_GL := nil;
+  if (not preserveGL) then h_GL := nil;
 end;
 
 
@@ -96,6 +94,7 @@ function g_Window_SetDisplay (preserveGL: Boolean = false): Boolean;
 var
   mode, cmode: TSDL_DisplayMode;
   wFlags: LongWord = 0;
+  nw, nh: Integer;
 {$ENDIF}
 begin
 {$IF not DEFINED(HEADLESS)}
@@ -103,11 +102,9 @@ begin
 
   e_WriteLog('Setting display mode...', TMsgType.Notify);
 
-  wFlags := SDL_WINDOW_OPENGL or SDL_WINDOW_RESIZABLE;
-  if gFullscreen then wFlags := wFlags or SDL_WINDOW_FULLSCREEN;
-  if gWinMaximized then wFlags := wFlags or SDL_WINDOW_MAXIMIZED;
-
-  KillGLWindow();
+  wFlags := SDL_WINDOW_OPENGL; // or SDL_WINDOW_RESIZABLE;
+  if gFullscreen then wFlags := wFlags or SDL_WINDOW_FULLSCREEN or SDL_WINDOW_BORDERLESS else wFlags := wFlags or SDL_WINDOW_RESIZABLE;
+  //if gWinMaximized then wFlags := wFlags or SDL_WINDOW_MAXIMIZED;
 
   if gFullscreen then
   begin
@@ -118,24 +115,44 @@ begin
     mode.driverdata := nil;
     if (SDL_GetClosestDisplayMode(0, @mode, @cmode) = nil) then
     begin
+      e_WriteLog('SDL: cannot find display mode for '+IntToStr(gScreenWidth), TMsgType.Notify);
       gScreenWidth := 800;
       gScreenHeight := 600;
     end
     else
     begin
+      e_WriteLog('SDL: found display mode for '+IntToStr(gScreenWidth)+'x'+IntToStr(gScreenHeight)+': '+IntToStr(cmode.w)+'x'+IntToStr(cmode.h), TMsgType.Notify);
       gScreenWidth := cmode.w;
       gScreenHeight := cmode.h;
     end;
   end;
 
+  KillGLWindow(preserveGL);
+
   h_Wnd := SDL_CreateWindow(PChar(wTitle), gWinRealPosX, gWinRealPosY, gScreenWidth, gScreenHeight, wFlags);
   if (h_Wnd = nil) then exit;
 
   SDL_GL_MakeCurrent(h_Wnd, h_GL);
   SDL_ShowCursor(SDL_DISABLE);
+  if (gFullscreen) then
+  begin
+    nw := 0;
+    nh := 0;
+    SDL_GetWindowSize(h_Wnd, @nw, @nh);
+    if (nw > 128) and (nh > 128) then
+    begin
+      e_WriteLog('SDL: fullscreen window got size '+IntToStr(nw)+'x'+IntToStr(nh)+': '+IntToStr(gScreenWidth)+'x'+IntToStr(gScreenHeight), TMsgType.Notify);
+      gScreenWidth := nw;
+      gScreenHeight := nh;
+    end
+    else
+    begin
+      e_WriteLog('SDL: fullscreen window got invalid size: '+IntToStr(nw)+'x'+IntToStr(nh), TMsgType.Notify);
+    end;
+  end;
   fuiScrWdt := gScreenWidth;
   fuiScrHgt := gScreenHeight;
-  if (h_GL <> nil) then begin if (assigned(oglInitCB)) then oglInitCB(); end;
+  if (h_GL <> nil) and (not preserveGL) then begin if (assigned(oglInitCB)) then oglInitCB(); end;
 {$ENDIF}
 
   result := true;
@@ -204,6 +221,7 @@ begin
   if (gScreenWidth <> w) or (gScreenHeight <> h) then
   begin
     result := true;
+    preserve := true;
     gScreenWidth := w;
     gScreenHeight := h;
   end;
@@ -211,6 +229,7 @@ begin
   if (gFullscreen <> fullscreen) then
   begin
     result := true;
+    preserve := true;
     gFullscreen := fullscreen;
     preserve := true;
   end;
@@ -459,14 +478,14 @@ begin
 
   if not g_Window_SetDisplay() then
   begin
-    KillGLWindow();
+    KillGLWindow(false);
     e_WriteLog('Window creation error (resolution not supported?)', TMsgType.Fatal);
     exit;
   end;
 
 {$IF not DEFINED(HEADLESS)}
-  h_Gl := SDL_GL_CreateContext(h_Wnd);
-  if (h_Gl = nil) then exit;
+  h_GL := SDL_GL_CreateContext(h_Wnd);
+  if (h_GL = nil) then exit;
   fuiScrWdt := gScreenWidth;
   fuiScrHgt := gScreenHeight;
   if (assigned(oglInitCB)) then oglInitCB();
@@ -910,7 +929,7 @@ begin
   while not ProcessMessage() do begin end;
 
   Release();
-  KillGLWindow();
+  KillGLWindow(false);
 
   result := 0;
 end;