decouple repainting from blitting the FBO; draw touch overlay after FBO

[d2df-sdl.git] / src / game / g_window.pas

diff --git a/src/game/g_window.pas b/src/game/g_window.pas
index 8e6bbe80de9c9ed2f53fd5b3191ee183fa5757ae..c4d1b0fb73a7984ce18686733833b6189abbac3e 100644 (file)
--- a/src/game/g_window.pas
+++ b/src/game/g_window.pas
@@ -52,6 +52,7 @@ const
 
 var
   Time, Time_Delta, Time_Old: Int64;
+  Frame: Int64;
   flag: Boolean;
   wNeedTimeReset: Boolean = false;
   wMinimized: Boolean = false;
@@ -87,11 +88,18 @@ begin
 
     if forceUpdate then
     begin
+      e_SetRendertarget(True);
+      e_SetViewPort(0, 0, gScreenWidth, gScreenHeight);
+
       DrawMenuBackground('INTER');
       e_DarkenQuadWH(0, 0, gScreenWidth, gScreenHeight, 150);
-
       DrawLoadingStat();
       g_Console_Draw(True);
+
+      e_SetRendertarget(False);
+      e_SetViewPort(0, 0, gWinSizeX, gWinSizeY);
+      e_BlitFramebuffer(gWinSizeX, gWinSizeY);
+
       sys_Repaint;
       prevLoadingUpdateTime := getTimeMilli();
     end;
@@ -124,6 +132,7 @@ begin
 
   if wNeedTimeReset then
   begin
+    Frame := 0;
     Time_Delta := 28;
     wNeedTimeReset := false;
   end;
@@ -141,11 +150,6 @@ begin
       else if (NetMode = NET_CLIENT) then g_Net_Client_Update();
       Update();
     end;
-  end
-  else
-  begin
-         if (NetMode = NET_SERVER) then g_Net_Host_Update()
-    else if (NetMode = NET_CLIENT) then g_Net_Client_Update();
   end;
 
   if NetMode = NET_SERVER then g_Net_Flush();
@@ -167,53 +171,68 @@ begin
 
   // Âðåìÿ ïðåäûäóùåãî îáíîâëåíèÿ
   if flag then
-  begin
     Time_Old := Time - (Time_Delta mod 28);
+
+  // don't wait if VSync is on, GL already probably waits enough
+  if gLerpActors then
+    flag := (Time - Frame >= gFrameTime) or gVSync;
+
+  if flag then
+  begin
     if (not wMinimized) then
     begin
+      if gPause or not gLerpActors then
+        gLerpFactor := 1.0
+      else
+        gLerpFactor := nmin(1.0, (Time - Time_Old) / 28.0);
       Draw;
       sys_Repaint
-    end
+    end;
+    Frame := Time
   end
   else
-  begin
-    sys_Delay(1) // release time slice, so we won't eat 100% CPU
-  end;
+    sys_Delay(1);
 
   e_SoundUpdate();
 end;
 
 function GLExtensionList (): SSArray;
-  var s: PChar; i, j, num: GLint;
+var
+  s: PChar;
+  i, j, num: GLint;
 begin
   result := nil;
   s := glGetString(GL_EXTENSIONS);
   if s <> nil then
   begin
-    num := 0; i := 0; j := 0;
-    while s[i] <> #0 do
+    num := 0;
+    i := 0;
+    j := 0;
+    while (s[i] <> #0) and (s[i] = ' ') do Inc(i);
+    while (s[i] <> #0) do
     begin
       while (s[i] <> #0) and (s[i] <> ' ') do Inc(i);
-      SetLength(result, num + 1);
-      result[num] := Copy(s, j, i - j);
+      SetLength(result, num+1);
+      result[num] := Copy(s, j+1, i-j);
       while (s[i] <> #0) and (s[i] = ' ') do Inc(i);
       j := i;
-      Inc(num)
-    end
-  end
+      Inc(num);
+    end;
+  end;
 end;
 
 function GLExtensionSupported (ext: AnsiString): Boolean;
-  var i, len: GLint; exts: SSArray;
+var
+  exts: SSArray;
+  e: AnsiString;
 begin
   result := false;
   exts := GLExtensionList();
-  if exts <> nil then
+  for e in exts do
   begin
-    i := 0; len := Length(exts);
-    while (i < len) and (exts[i] <> ext) do Inc(i);
-    result := i < len
-  end
+    //writeln('<', e, '> : [', ext, '] = ', strEquCI1251(e, ext));
+    if (strEquCI1251(e, ext)) then begin result := true; exit; end;
+  end;
 end;
 
 procedure PrintGLSupportedExtensions;
@@ -320,15 +339,34 @@ begin
       mdfo.Free();
       Halt(0);
     end;
+
+    if (arg = '--pixel-scale') or (arg = '-pixel-scale') then
+    begin
+      if (idx <= ParamCount) then
+      begin
+        if not conParseFloat(r_pixel_scale, ParamStr(idx)) then r_pixel_scale := 1.0;
+        Inc(idx);
+      end;
+    end;
   end;
 
 {$IFNDEF USE_SYSSTUB}
   PrintGLSupportedExtensions;
-  glLegacyNPOT := GLExtensionSupported('GL_ARB_texture_non_power_of_two') or GLExtensionSupported('GL_OES_texture_npot');
+  glLegacyNPOT := not (GLExtensionSupported('GL_ARB_texture_non_power_of_two') or GLExtensionSupported('GL_OES_texture_npot'));
 {$ELSE}
   glLegacyNPOT := False;
+  glRenderToFBO := False;
 {$ENDIF}
-  e_logWritefln('NPOT textures: %s', [glLegacyNPOT]);
+  if glNPOTOverride and glLegacyNPOT then
+  begin
+    glLegacyNPOT := true;
+    e_logWriteln('NPOT texture emulation: FORCED');
+  end
+  else
+  begin
+    if (glLegacyNPOT) then e_logWriteln('NPOT texture emulation: enabled')
+    else e_logWriteln('NPOT texture emulation: disabled');
+  end;
   gwin_dump_extensions := false;
 
   Init;