196 2006-01-24 09:57:10 +0100 Utility method to create thumbnails 2015-09-27 03:09:33 +0200 0 0 3 JogAmp Jogl core 1 All all VERIFIED FIXED P3 normal --- 1 sgothel sgothel DEFECT --- oldest_to_newest 212 0 sgothel 2010-03-24 07:48:20 +0100 ---- Reported by gfx 2006-01-24 21:57:10 ---- Since JOGL offers the ability to capture screenshot of the OpenGL rendering, it is useful to be able to generate thumbnails of these screenshots. The class ImageUtil should implement a method called createThumbnail() to do this. The submitted patch contains a performant implementation using dichotomy to generate high quality thumbnails. Existing methods in the JDK produce bad looking pictures when the size of the thumbnail is less than 50% of the size of the original picture. ---- Additional Comments From gfx 2006-01-24 21:57:58 ---- Created an attachment Patch for ImageUtil ---- Additional Comments From kbr 2006-01-24 23:29:32 ---- Thanks for the excellent patch. It's been incorporated and should be in the nightly build of 1/25. --- Bug imported by sgothel@jausoft.com 2010-03-24 07:48 EDT --- This bug was previously known as _bug_ 196 at https://jogl.dev.java.net/bugs/show_bug.cgi?id=196 Imported an attachment (id=71) The original submitter of attachment 71 is unknown. Reassigning to the person who moved it here: sgothel@jausoft.com. 71 2006-01-24 21:57:00 +0100 2006-01-24 21:57:00 +0100 Patch for ImageUtil ImageUtil.java.diff text/plain 2860 sgothel LS0tIEltYWdlVXRpbC5qYXZhCTIwMDYtMDEtMTIgMjM6Mjk6MDAuMDAwMDAwMDAwIC0wODAwCisr KyBEOlxJbWFnZVV0aWwuamF2YQkyMDA2LTAxLTI0IDIxOjQ5OjUzLjQ2ODc1MDAwMCAtMDgwMApA QCAtMzksNiArMzksNyBAQAogDQogcGFja2FnZSBjb20uc3VuLm9wZW5nbC51dGlsOw0KIA0KK2lt cG9ydCBqYXZhLmF3dC4qOw0KIGltcG9ydCBqYXZhLmF3dC5pbWFnZS4qOw0KIA0KIC8qKiBVdGls aXRpZXMgZm9yIGRlYWxpbmcgd2l0aCBpbWFnZXMuICovDQpAQCAtNjEsNCArNjIsNjUgQEAKICAg ICAgIHJhc3Rlci5zZXREYXRhRWxlbWVudHMoMCwgaW1hZ2UuZ2V0SGVpZ2h0KCkgLSBpIC0gMSwg aW1hZ2UuZ2V0V2lkdGgoKSwgMSwgc2NhbmxpbmUxKTsNCiAgICAgfQ0KICAgfQ0KKyAgDQorICAv KioNCisgICAqIENyZWF0ZXMgYSA8Y29kZT5CdWZmZXJlZEltYWdlPC9jb2RlPiB3aXRoIGEgcGl4 ZWwgZm9ybWF0IGNvbXBhdGlibGUgd2l0aCB0aGUgZ3JhcGhpY3MNCisgICAqIGVudmlyb25tZW50 LiBUaGUgcmV0dXJuZWQgaW1hZ2UgY2FuIHRodXMgYmVuZWZpdCBmcm9tIGhhcmR3YXJlIGFjY2Vs ZXJhdGVkIG9wZXJhdGlvbnMNCisgICAqIGluIEphdmEyRCBBUEkuDQorICAgKg0KKyAgICogQHBh cmFtIHdpZHRoIFRoZSB3aWR0aCBvZiB0aGUgaW1hZ2UgdG8gYmUgY3JlYXRlZA0KKyAgICogQHBh cmFtIGhlaWdodCBUaGUgaGVpZ2h0IG9mIHRoZSBpbWFnZSB0byBiZSBjcmVhdGVkDQorICAgKg0K KyAgICogQHJldHVybiBBIGluc3RhbmNlIG9mIDxjb2RlPkJ1ZmZlcmVkSW1hZ2U8L2NvZGU+IHdp dGggYSB0eXBlIGNvbXBhdGlibGUgd2l0aCB0aGUgZ3JhcGhpY3MgY2FyZC4NCisgICAqLw0KKyAg cHVibGljIHN0YXRpYyBCdWZmZXJlZEltYWdlIGNyZWF0ZUNvbXBhdGlibGVJbWFnZShpbnQgd2lk dGgsIGludCBoZWlnaHQpIHsNCisgICAgR3JhcGhpY3NDb25maWd1cmF0aW9uIGNvbmZpZ3VyYXRp b24gPQ0KKyAgICAgICBHcmFwaGljc0Vudmlyb25tZW50LmdldExvY2FsR3JhcGhpY3NFbnZpcm9u bWVudCgpLg0KKyAgICAgICAgIGdldERlZmF1bHRTY3JlZW5EZXZpY2UoKS5nZXREZWZhdWx0Q29u ZmlndXJhdGlvbigpOw0KKyAgICByZXR1cm4gY29uZmlndXJhdGlvbi5jcmVhdGVDb21wYXRpYmxl SW1hZ2Uod2lkdGgsIGhlaWdodCk7DQorICB9DQorDQorICAvKioNCisgICAqIENyZWF0ZXMgYSB0 aHVtYm5haWwgZnJvbSBhbiBpbWFnZS4gQSB0aHVtYm5haWwgaXMgYSBzY2FsZWQgZG93biB2ZXJz aW9uIG9mIHRoZSBvcmlnaW5hbCBwaWN0dXJlLg0KKyAgICogVGhpcyBtZXRob2Qgd2lsbCByZXRh aW4gdGhlIHdpZHRoIHRvIGhlaWdodCByYXRpbyBvZiB0aGUgb3JpZ2luYWwgcGljdHVyZSBhbmQg cmV0dXJuIGEgbmV3DQorICAgKiBpbnN0YW5jZSBvZiA8Y29kZT5CdWZmZXJlZEltYWdlPC9jb2Rl Pi4gVGhlIG9yaWdpbmFsIHBpY3R1cmUgaXMgbm90IG1vZGlmaWVkLg0KKyAgICoNCisgICAqIEBw YXJhbSBpbWFnZSBUaGUgb3JpZ2luYWwgaW1hZ2UgdG8gc2FtcGxlIGRvd24NCisgICAqIEBwYXJh bSB0aHVtYldpZHRoIFRoZSB3aWR0aCBvZiB0aGUgdGh1bWJuYWlsIHRvIGJlIGNyZWF0ZWQNCisg ICAqDQorICAgKiBAdGhyb3dzIElsbGVnYWxBcmd1bWVudEV4Y2VwdGlvbiBJZiB0aHVtYldpZHRo IGlzIGdyZWF0ZXIgdGhhbiBpbWFnZS5nZXRXaWR0aCgpDQorICAgKg0KKyAgICogQHJldHVybiBB IHRodW1ibmFpbCB3aXRoIHRoZSByZXF1ZXN0ZWQgd2lkdGggb3IgdGhlIG9yaWdpbmFsIHBpY3R1 cmUgaWYgdGh1bWJXaWR0aCA9IGltYWdlLmdldFdpZHRoKCkNCisgICAqLw0KKyAgcHVibGljIHN0 YXRpYyBCdWZmZXJlZEltYWdlIGNyZWF0ZVRodW1ibmFpbChCdWZmZXJlZEltYWdlIGltYWdlLCBp bnQgdGh1bWJXaWR0aCkgew0KKyAgICBpZiAodGh1bWJXaWR0aCA+IGltYWdlLmdldFdpZHRoKCkp IHsNCisgICAgICB0aHJvdyBuZXcgSWxsZWdhbEFyZ3VtZW50RXhjZXB0aW9uKCJUaHVtYm5haWwg d2lkdGggbXVzdCBiZSBncmVhdGVyIHRoYW4gaW1hZ2Ugd2lkdGgiKTsNCisgICAgfQ0KKyAgICAN CisgICAgaWYgKHRodW1iV2lkdGggPT0gaW1hZ2UuZ2V0V2lkdGgoKSkgew0KKyAgICAgIHJldHVy biBpbWFnZTsNCisgICAgfQ0KKyAgDQorICAgIGZsb2F0IHJhdGlvID0gKGZsb2F0KSBpbWFnZS5n ZXRXaWR0aCgpIC8gKGZsb2F0KSBpbWFnZS5nZXRIZWlnaHQoKTsNCisgICAgaW50IHdpZHRoID0g aW1hZ2UuZ2V0V2lkdGgoKTsNCisgICAgQnVmZmVyZWRJbWFnZSB0aHVtYiA9IGltYWdlOw0KKyAg ICANCisgICAgZG8gew0KKyAgICAgIHdpZHRoIC89IDI7DQorICAgICAgaWYgKHdpZHRoIDwgdGh1 bWJXaWR0aCkgew0KKyAgICAgICAgd2lkdGggPSB0aHVtYldpZHRoOw0KKyAgICAgIH0NCisgICAg ICANCisgICAgICBCdWZmZXJlZEltYWdlIHRlbXAgPSBjcmVhdGVDb21wYXRpYmxlSW1hZ2Uod2lk dGgsIChpbnQpICh3aWR0aCAvIHJhdGlvKSk7DQorICAgICAgR3JhcGhpY3MyRCBnMiA9IHRlbXAu Y3JlYXRlR3JhcGhpY3MoKTsNCisgICAgICBnMi5zZXRSZW5kZXJpbmdIaW50KFJlbmRlcmluZ0hp bnRzLktFWV9JTlRFUlBPTEFUSU9OLA0KKyAgICAgICAgICAgICAgICAgICAgICAgICAgUmVuZGVy aW5nSGludHMuVkFMVUVfSU5URVJQT0xBVElPTl9CSUxJTkVBUik7DQorICAgICAgZzIuZHJhd0lt YWdlKHRodW1iLCAwLCAwLCB0ZW1wLmdldFdpZHRoKCksIHRlbXAuZ2V0SGVpZ2h0KCksIG51bGwp Ow0KKyAgICAgIGcyLmRpc3Bvc2UoKTsNCisNCisgICAgICB0aHVtYiA9IHRlbXA7DQorICAgIH0g d2hpbGUgKHdpZHRoICE9IHRodW1iV2lkdGgpOw0KKyAgICANCisgICAgcmV0dXJuIHRodW1iOw0K KyAgfQ0KIH0NCg==