Slow when drawing the Map into another surface

[nildo]

Hello!

I am having a problem with my game. When you press TAB, I draw into the DxDraw a new surface showing the map (just some squares in ISO format, showing the colision points). This new surface I draw using DrawAdd to add it to the main surface with alpha-blending of 100. But this slows down everything. I get something like 1 frame per second. Is there any workarround for this, or sugestions?

This new surface is the same width and height of the main DxDraw

Thank you!

[WILL]

Hi nildo, welcome to PGD!

What version of UnDelphiX (or DelphiX) are you using?

[HopeDagger]

I draw into the DxDraw a new surface showing the map (just some squares in ISO format, showing the colision points). This new surface I draw using DrawAdd to add it to the main surface with alpha-blending of 100. But this slows down everything. I get something like 1 frame per second. Is there any workarround for this, or sugestions?

DrawAdd draws an image with additive blending, which I thing you interpreted as being something else. To draw on the new surface normally, just use the regular Draw method. (Unless of course you want additive blending on the new surface?)

As a general note: The reason DrawAdd is so slow is because it has to do the blending manually (ie. software-based), since DelphiX uses (DirectDraw) software-rendering. Try to avoid blending routines in general with DelphiX unless you're using them with smaller images.

EDIT: Oh hey! Welcome to PGD, too.

[nildo]

DrawAdd draws an image with additive blending, which I thing you interpreted as being something else. To draw on the new surface normally, just use the regular Draw method. (Unless of course you want additive blending on the new surface?)

As a general note: The reason DrawAdd is so slow is because it has to do the blending manually (ie. software-based), since DelphiX uses (DirectDraw) software-rendering. Try to avoid blending routines in general with DelphiX unless you're using them with smaller images.

EDIT: Oh hey! Welcome to PGD, too.

Thanx for the Welcome!!

What do you sugest for me to show de map of the area? I was pretending to draw it with alpha blending on the screen, with the colision blocks, NPCs and Players (isometric 2d mmorpg game).

[Legolas]

You may switch to Jicro's UnDephiX, that should have a sort of hardware acceleration

[nildo]

You may switch to Jicro's UnDephiX, that should have a sort of hardware acceleration

Is his units workarrounded with the latest unDelphiX units?

[nildo]

You may switch to Jicro's UnDephiX, that should have a sort of hardware acceleration

Is his units workarrounded with the latest unDelphiX units?

I have changed to his units but it seems not to work propertly. My World editor stopped working like it needs to be.. (the Draw passing the Surface does not works correctly).

[WILL]

Jicro has taken over UnDelphiX in all it's unofficial glory. It's the most current version and is considered to be the 'as official as we're gonna get' version of the old DelphiX.

[nildo]

Jicro has taken over UnDelphiX in all it's unofficial glory. It's the most current version and is considered to be the 'as official as we're gonna get' version of the old DelphiX.

Strange... I could not get the DRAW to work correctly with his units... Perhaps you can help me?

procedure TDrawEngine.ApplyDraw(Sender: TObject; LagCount: Integer);
var
   nAux: Integer;
begin
   // Pinta o fundo
   Surface.Fill(clBlack);

   // Requisita pintura das layers
   for nAux := 0 to High( FLayers ) do
   begin
      // Se a layer estiver vis??vel
      if FLayers[ nAux ].Visible then
      begin
         // Requisita pintra
         FLayers[ nAux ].RequestDraw;

         // Desenha a layer
         Surface.Draw( 0, 0, Surface.ClientRect, FLayers[ nAux ].Surface, False );
      end;
   end;

   // Se tem que desenhar a grid, desenha
   if FShowGrid then
      DrawTheGrid;

   // Se tem que desenhar os numeros, desenha
   if FShowNumbers then
      DrawTheNumbers;

   // Desenha um ret?¢ngulo onde o mouse est?°, dependendo do tipo
   case UsingTool of
      utColision: DrawMouseSquare( clRed );
      utTerrain : DrawMouseSquare( clYellow );
   end;

   // Desenha os Frames Por Segundo
   DrawFPS;

   // Applica as altera?ß?µes
   Surface.Canvas.Release;
   Flip;
end;

this line: Surface.Draw is not working. Or it's working, but the layer surface does not get's to the main surface

[HopeDagger]

What do you sugest for me to show de map of the area? I was pretending to draw it with alpha blending on the screen, with the colision blocks, NPCs and Players (isometric 2d mmorpg game).

Blending is going to be slow with DelphiX; no real way around that. Others here are suggesting UnDelphiX, which I have no experience with, but if it can do the hardware blending you need, then it sounds like a good direction to head in.

(Omega is a fantastic hardware-accelerated Delphi game/graphics lib, too!)