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 eec03232f7d26e99fd2619d39994ff5291b26257..5e91cc0f285e0dfbeb08bea4a3e2e4227bbc6f18 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)';
@@ -75,17 +79,27 @@ implementation
   (* --------- Graphics --------- *)
 
   function LoadGL: Boolean;
+    var ltmp: Integer;
   begin
     result := true;
     {$IFDEF NOGL_INIT}
-    nogl_Init;
-    if glRenderToFBO and (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) then
+      nogl_Init;
+      if glRenderToFBO and (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) then
+      begin
+        e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering');
+        glRenderToFBO := false;
+      end;
     {$ELSE}
-    if glRenderToFBO and (not Load_GL_ARB_framebuffer_object) then
+      if glRenderToFBO and (not Load_GL_ARB_framebuffer_object) then
+      begin
+        e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering');
+        glRenderToFBO := false;
+      end;
     {$ENDIF}
+    if SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE, @ltmp) = 0 then
     begin
-      e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering');
-      glRenderToFBO := false;
+      e_LogWritefln('stencil buffer size: %s', [ltmp]);
+      gwin_has_stencil := (ltmp > 0);
     end;
   end;
 
@@ -96,55 +110,17 @@ implementation
     {$ENDIF}
   end;
 
-  procedure UpdateSize (w, h: Integer);
-  begin
-    gWinSizeX := w;
-    gWinSizeY := h;
-    gRC_Width := w;
-    gRC_Height := h;
-    if glRenderToFBO then
-    begin
-      // store real window size in gWinSize, downscale resolution now
-      w := round(w / r_pixel_scale);
-      h := round(h / r_pixel_scale);
-      if not e_ResizeFramebuffer(w, h) then
-      begin
-        e_LogWriteln('GL: could not create framebuffer, falling back to --no-fbo');
-        glRenderToFBO := False;
-        w := gWinSizeX;
-        h := gWinSizeY;
-      end;
-    end;
-    gScreenWidth := w;
-    gScreenHeight := h;
-    {$IFDEF ENABLE_HOLMES}
-      fuiScrWdt := w;
-      fuiScrHgt := h;
-    {$ENDIF}
-    e_ResizeWindow(w, h);
-    e_InitGL;
-    g_Game_SetupScreenSize;
-    {$IFNDEF ANDROID}
-      (* This will fix menu reset on keyboard showing *)
-      g_Menu_Reset;
-    {$ENDIF}
-    g_Game_ClearLoading;
-    {$IFDEF ENABLE_HOLMES}
-      if assigned(oglInitCB) then oglInitCB;
-    {$ENDIF}
-  end;
-
-  function GetTitle (): PChar;
+  function GetTitle (): AnsiString;
     var info: AnsiString;
   begin
     info := g_GetBuildHash(false);
     if info = 'custom build' then
       info := info + ' by ' + g_GetBuilderName() + ' ' + GAME_BUILDDATE + ' ' + GAME_BUILDTIME;
-    result := PChar(Format(GameTitle, [info]))
+    result := Format(GameTitle, [info]);
   end;
 
   function InitWindow (w, h, bpp: Integer; fullScreen, maximized: Boolean): Boolean;
-    var flags: UInt32; x, y: cint;
+    var flags: UInt32; x, y: cint; title: AnsiString;
   begin
     // note: on window close make: if assigned(oglDeinitCB) then oglDeinitCB;
     e_LogWritefln('InitWindow %s %s %s %s', [w, h, bpp, fullScreen]);
@@ -178,7 +154,8 @@ implementation
         x := wx;
         y := wy
       end;
-      window := SDL_CreateWindow(GetTitle(), x, y, w, h, flags);
+      title := GetTitle();
+      window := SDL_CreateWindow(PChar(title), x, y, w, h, flags);
       if window <> nil then
       begin
         context := SDL_GL_CreateContext(window);
@@ -199,7 +176,8 @@ 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
@@ -240,7 +218,8 @@ implementation
       gWinMaximized := maximized;
       gRC_FullScreen := fullscreen;
       gRC_Maximized := maximized;
-      UpdateSize(w, h);
+      if @sys_ScreenResize <> nil then
+        sys_ScreenResize(w, h);
       result := true
     end
   end;
@@ -448,7 +427,9 @@ 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:
@@ -522,8 +503,9 @@ 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;