218 2006-04-26 02:21:13 +0200 glGetFloatv() doesn't populate matrix return types 2010-03-24 07:48:45 +0100 0 0 3 JogAmp Jogl core 1 All all VERIFIED INVALID P3 normal --- 1 sgothel sgothel DEFECT --- oldest_to_newest 234 0 sgothel 2010-03-24 07:48:45 +0100 ---- Reported by luke_hutch 2006-04-26 14:21:13 ---- Calling glGetFloatv() with a matrix parameter like GL.GL_MODELVIEW should populate the matrix parameter on exit. It doesn't appear to do this. For example, given the following code: gl.glMatrixMode(GL.GL_MODELVIEW); gl.glLoadIdentity(); float[] f = new float[16]; gl.glGetFloatv(GL.GL_MODELVIEW, f, 0); System.out.println("MV"); for (int i = 0; i < 16; i++) { System.out.print(" " + f[i]); if (i % 4 == 3) System.out.println(); } gl.glMatrixMode(GL.GL_PROJECTION); gl.glLoadIdentity(); ByteBuffer buf = ByteBuffer.allocateDirect(16*4); buf.order(ByteOrder.nativeOrder()); FloatBuffer fbuf = buf.asFloatBuffer(); gl.glGetFloatv(GL.GL_PROJECTION, fbuf); System.out.println("Proj"); for (int i = 0; i < 16; i++) { System.out.print(" " + fbuf.get(i)); if (i % 4 == 3) System.out.println(); } The output is: MV 2.0232286E-33 -8.61196E-8 -8.60764E-8 3.9E-44 -1.0438452 4.3789212E-34 0.0 0.0 -1.0439386 4.8735996E-34 -1.0439386 0.0 0.0 1.3078195E-38 9.531687E-34 9.530306E-34 Proj 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 It appears the array is not being back-populated upon return by GlueGen. ---- Additional Comments From kbr 2006-04-27 14:28:11 ---- Created an attachment Working test case ---- Additional Comments From kbr 2006-04-27 14:29:51 ---- The example code provided is buggy. The glGetFloatv should be getting GL_MODELVIEW_MATRIX and GL_PROJECTION_MATRIX instead of GL_MODELVIEW and GL_PROJECTION. The attached test case works properly on my machine. Please reopen this bug if for some reason the test case doesn't work on yours. ---- Additional Comments From luke_hutch 2006-04-27 15:10:24 ---- Ah. Yes, sorry for the mistake and thank you for your time in tracking down the source of the problem. --- Bug imported by sgothel@jausoft.com 2010-03-24 07:48 EDT --- This bug was previously known as _bug_ 218 at https://jogl.dev.java.net/bugs/show_bug.cgi?id=218 Imported an attachment (id=80) The original submitter of attachment 80 is unknown. Reassigning to the person who moved it here: sgothel@jausoft.com. 80 2006-04-27 14:28:00 +0200 2006-04-27 14:28:00 +0200 Working test case MatrixTest.java application/msword 1663 sgothel aW1wb3J0IGphdmEuYXd0Lio7DQppbXBvcnQgamF2YS5uaW8uKjsNCmltcG9ydCBqYXZheC5tZWRp YS5vcGVuZ2wuKjsNCg0KcHVibGljIGNsYXNzIE1hdHJpeFRlc3Qgew0KICBwdWJsaWMgc3RhdGlj IHZvaWQgbWFpbihTdHJpbmdbXSBhcmdzKSB7DQogICAgR0xDYW52YXMgY2FudmFzID0gbmV3IEdM Q2FudmFzKCk7DQogICAgY2FudmFzLmFkZEdMRXZlbnRMaXN0ZW5lcihuZXcgTGlzdGVuZXIoKSk7 DQogICAgRnJhbWUgZiA9IG5ldyBGcmFtZSgpOw0KICAgIGYuYWRkKGNhbnZhcyk7DQogICAgZi5z ZXRTaXplKDIwMCwgMjAwKTsNCiAgICBmLnNldFZpc2libGUodHJ1ZSk7DQogIH0NCg0KICBzdGF0 aWMgY2xhc3MgTGlzdGVuZXIgaW1wbGVtZW50cyBHTEV2ZW50TGlzdGVuZXIgew0KICAgIHB1Ymxp YyB2b2lkIGluaXQoR0xBdXRvRHJhd2FibGUgZHJhd2FibGUpIHsNCiAgICAgIEdMIGdsID0gZHJh d2FibGUuZ2V0R0woKTsNCiAgICAgIGdsLmdsTWF0cml4TW9kZShHTC5HTF9NT0RFTFZJRVcpOw0K ICAgICAgZ2wuZ2xMb2FkSWRlbnRpdHkoKTsNCg0KICAgICAgZmxvYXRbXSBmID0gbmV3IGZsb2F0 WzE2XTsNCiAgICAgIGdsLmdsR2V0RmxvYXR2KEdMLkdMX01PREVMVklFV19NQVRSSVgsIGYsIDAp Ow0KICAgICAgU3lzdGVtLm91dC5wcmludGxuKCJNViIpOw0KICAgICAgZm9yIChpbnQgaSA9IDA7 IGkgPCAxNjsgaSsrKSB7DQogICAgICAgIFN5c3RlbS5vdXQucHJpbnQoIiAiICsgZltpXSk7DQog ICAgICAgIGlmIChpICUgNCA9PSAzKQ0KICAgICAgICAgIFN5c3RlbS5vdXQucHJpbnRsbigpOw0K ICAgICAgfQ0KDQogICAgICBnbC5nbE1hdHJpeE1vZGUoR0wuR0xfUFJPSkVDVElPTik7DQogICAg ICBnbC5nbExvYWRJZGVudGl0eSgpOw0KDQogICAgICBCeXRlQnVmZmVyIGJ1ZiA9IEJ5dGVCdWZm ZXIuYWxsb2NhdGVEaXJlY3QoMTYqNCk7DQogICAgICBidWYub3JkZXIoQnl0ZU9yZGVyLm5hdGl2 ZU9yZGVyKCkpOw0KICAgICAgRmxvYXRCdWZmZXIgZmJ1ZiA9IGJ1Zi5hc0Zsb2F0QnVmZmVyKCk7 DQogICAgICBnbC5nbEdldEZsb2F0dihHTC5HTF9QUk9KRUNUSU9OX01BVFJJWCwgZmJ1Zik7ICAN CiAgICAgIFN5c3RlbS5vdXQucHJpbnRsbigiUHJvaiIpOw0KICAgICAgZm9yIChpbnQgaSA9IDA7 IGkgPCAxNjsgaSsrKSB7DQogICAgICAgIFN5c3RlbS5vdXQucHJpbnQoIiAiICsgZmJ1Zi5nZXQo aSkpOw0KICAgICAgICBpZiAoaSAlIDQgPT0gMykNCiAgICAgICAgICBTeXN0ZW0ub3V0LnByaW50 bG4oKTsNCiAgICAgIH0NCg0KICAgICAgbmV3IFRocmVhZChuZXcgUnVubmFibGUoKSB7DQogICAg ICAgICAgcHVibGljIHZvaWQgcnVuKCkgew0KICAgICAgICAgICAgU3lzdGVtLmV4aXQoMCk7DQog ICAgICAgICAgfQ0KICAgICAgICB9KS5zdGFydCgpOw0KICAgIH0NCiAgICBwdWJsaWMgdm9pZCBk aXNwbGF5KEdMQXV0b0RyYXdhYmxlIGRyYXdhYmxlKSB7fQ0KICAgIHB1YmxpYyB2b2lkIHJlc2hh cGUoR0xBdXRvRHJhd2FibGUgZHJhd2FibGUsIGludCB4LCBpbnQgeSwgaW50IHdpZHRoLCBpbnQg aGVpZ2h0KSB7fQ0KICAgIHB1YmxpYyB2b2lkIGRpc3BsYXlDaGFuZ2VkKEdMQXV0b0RyYXdhYmxl IGRyYXdhYmxlLCBib29sZWFuIG1vZGVDaGFuZ2VkLCBib29sZWFuIGRldmljZUNoYW5nZWQpIHt9 DQogIH0NCn0NCg==