Haxe3+HxSL2+Flash11: drawTriangles fails after re-creating Context3D

[Motoshi Kamiya]

Hi everybody,

I met a small problem with Haxe3+HxSL2. (Haxe 3.0.0 r6371 and the latest git version of hxsl)

At first view, "drawTriangles" works well as in haxe-2.10+format-1.25 environment.  But once Context3D is disposed and re-created in Haxe3+HxSL2 env., "drawTriangles" always fails (throws error #3600; setProgram related?) and no triangles are displayed.  I confirm CREATE_CONTEXT3D event is dispatched after "dispose", new Context3D seems to be successfully re-created, and the background color specified by "clear" is ok.  I also confirm equivalent code by haxe-2.10+format-1.25 works fine.

What is wrong...?

Thanks, 

// test code (modified version of the hxsl sample excluding some common classes).

class Shader extends hxsl.Shader {

  static var SRC = {

    var input : {

      pos : Float3,

    };

    var color : Float3;

    function vertex( mpos : M44, mproj : M44 ) {

      out = input.pos.xyzw * mpos * mproj;

      color = input.pos;

    }

    function fragment() {

      out = color.xyzw;

    }

  };

}

class Test {

  var stage : flash.display.Stage;

  var s : flash.display.Stage3D;

  var c : flash.display3D.Context3D;

  var shader : Shader;

  var pol : Polygon;

  var t : Float;

  var camera : Camera;

  function new() {

    stage = flash.Lib.current.stage;

    s = stage.stage3Ds[0];

    s.addEventListener( flash.events.Event.CONTEXT3D_CREATE, onReady );

    stage.addEventListener( flash.events.KeyboardEvent.KEY_DOWN, onKey );

    flash.Lib.current.addEventListener( flash.events.Event.ENTER_FRAME, update );

    s.requestContext3D();

  }

  function onKey( e : flash.events.KeyboardEvent ) {

    c.dispose();

  }

  function onReady( _ ) {

    //trace( "context3D created." );

    t = 0;

    c = s.context3D;

    c.enableErrorChecking = true;

    c.configureBackBuffer( stage.stageWidth, stage.stageHeight, 0, true );

    shader = new Shader();

    camera = new Camera();

    pol = new Cube();

    pol.alloc( c );

  }

  function update(_) {

    if ( c == null ) return;

    t += 0.01;

    c.clear( 0, 0, 0, 1 );

    c.setDepthTest( true, flash.display3D.Context3DCompareMode.LESS_EQUAL );

    c.setCulling( flash.display3D.Context3DTriangleFace.BACK );

    camera.update();

    var project = camera.m.toMatrix();

    var mpos = new flash.geom.Matrix3D();

    mpos.appendRotation( t * 10, flash.geom.Vector3D.Z_AXIS );

    shader.mpos = mpos;

    shader.mproj = project;

    shader.bind( c, pol.vbuf );

    try {

      c.drawTriangles( pol.ibuf );

    } catch( e:flash.errors.Error ) {

      //trace( e.message ); // catch Error #3600 after dispose()

    }

    shader.unbind( c );

    c.present();

  }

  static function main() {

    haxe.Log.setColor( 0xFF0000 );

    var inst = new Test();

  }

}

[Nicolas Cannasse]

Le 06/03/2013 08:32, Motoshi Kamiya a �crit :

> Hi everybody,
>
> I met a small problem with Haxe3+HxSL2. (Haxe 3.0.0 r6371 and the latest
> git version of hxsl)
>
> At first view, "drawTriangles" works well as in haxe-2.10+format-1.25
> environment. But once Context3D is disposed and re-created in
> Haxe3+HxSL2 env., "drawTriangles" always fails (throws error #3600;
> setProgram related?) and no triangles are displayed. I confirm
> CREATE_CONTEXT3D event is dispatched after "dispose", new Context3D
> seems to be successfully re-created, and the background color specified
> by "clear" is ok. I also confirm equivalent code by
> haxe-2.10+format-1.25 works fine.

Hi,

That's due to the shader caching mechanism of HxSL2.

We don't add yet a dispose() method but it will be done soon. You can
now add a method that does the following :

@:access(hxsl.ShaderGlobals)
public function dispose() {
globals.instances = new Map();
instance = null;
}

Best,
Nicolas

[Motoshi Kamiya]

Thanks! :D