From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH] drm/i915/glk: Improve rounding caused by pre-CSC gamma tables Date: Fri, 10 Mar 2017 14:48:22 +0200 Message-ID: <20170310124822.GY31595@intel.com> References: <20170310101835.29845-1-ander.conselvan.de.oliveira@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id B65526E0AC for ; Fri, 10 Mar 2017 12:48:36 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20170310101835.29845-1-ander.conselvan.de.oliveira@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Ander Conselvan de Oliveira Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBNYXIgMTAsIDIwMTcgYXQgMTI6MTg6MzRQTSArMDIwMCwgQW5kZXIgQ29uc2VsdmFu IGRlIE9saXZlaXJhIHdyb3RlOgo+IFRoZSAzM3JkIGVudHJ5IGluIHRoZSBwcmUtQ1NDIGdhbW1h IHRhYmxlIGluIEdlbWluaWxha2UgY2FuIHJlcHJlc2VudCBhCj4gdmFsdWUgb2YgMS4wIGFzIDE3 IGJpdHMgZml4ZWQgcG9pbnQgd2l0aCBvbmUgaW50ZWdlciBiaXQuIEhvd2V2ZXIsIHRoZQo+IHRh YmxlIHdhcyBnZW5lcmF0ZWQgc3VjaCB0aGF0IHRoZSB2YWx1ZSBvZiAxLjAgd291bGQgYmUgMC5m ZmZmIHdpdGgKPiBhbGwgdGhlIGludGVydmFscyBzY2FsZWQgYWNjb3JkaW5nbHkuIEZvciBpbnN0 YW5jZSwgMC41IG1hcHBlZCB0bwo+IDAuN2ZmZiBpbnN0ZWFkIG9mIDAuODAwMC4KCkFjdHVhbGx5 IGFsbCB0aGUgZ2FtbWEgdGFibGVzIGV4Y2VwdCB0aGUgbGVnYWN5IDhicGMgZ2FtbWEgaGF2ZQp0 aGlzIDEuMCB0aGluZy4gQW5kIHlldCB3ZSBwcm9ncmFtIHRoZW0gYWxsIHRvIDwxLjAuIEJ1dCBJ IGd1ZXNzCmluIG1vc3QgY2FzZXMgdGhhdCBkb2Vzbid0IGNhdXNlIGFueSBpc3N1ZXMuIEJ1dCBJ IHRoaW5rIHRoaXMgaXMKZGVmaW5pdGVseSBzb21ldGhpbmcgc29tZW9uZSBzaG91bGQgbG9vayBh dC4KCk9uZSBwcm9ibGVtIGlzIHRoYXQgdGhlIHVhcGkgd2UgZ290IGluIHRoZSBlbmQgdXNlcyAw LjE2IHJlcHJlc2VudGF0aW9uCmluc3RlYWQgb2YgdGhlIDguMjQgdGhhdCBJIHRob3VnaHQgd2Ug d2VyZSBnb2luZyB3aXRoLiBTbyB0aGUgY29udmVyc2lvbgppc24ndCBnb2luZyB0byBhcyBuaWNl IGFzIGl0IGNvdWxkIGJlIEkgc3VwcG9zZS4KCkJ1dCB5ZWFoLCB0aGlzIHBhdGNoIHNlZW1zIHRy b3VibGUgZnJlZSBzaW5jZSB3ZSBkb24ndCB5ZXQgZXhwb3NlCnRoZSBwcmUtY3NjIGdhbW1hIHRv IHVzZXJzcGFjZS4KClJldmlld2VkLWJ5OiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFA bGludXguaW50ZWwuY29tPgoKPiAKPiBGb3IgYSByZWFzb24gdGhhdCBpcyBub3QgY2xlYXIgdG8g dGhlIGF1dGhvciwgdGhlIHJvdW5kaW5nIHNlZW1zIHRvIGJlCj4gZGlmZmVyZW50IHdoZW4gYSBj dXJzb3IgcGxhbmUgaXMgdXNlZCwgbGVhZGluZyB0byBzb21lIHNlZW1pbmdseSByYW5kb20KPiBm YWlsdXJlcyBvZiB0aGUga21zX2N1cnNvcl9jcmMgaWd0IHRlc3RzLiBUaGUgZGlmZmVyZW5jZXMg d2VyZW4ndAo+IHBlcmNlcHRpYmxlIGF0IDhicGMgd2l0aCBpbWFnZXMgY2FwdHVyZWQgYnkgYSBD aGFtZWxpdW0gZGV2aWNlLCBidXQgZGlkCj4gY2F1c2UgQ1JDIG1pc21hdGNoZXMuCj4gCj4gU2ln bmVkLW9mZi1ieTogQW5kZXIgQ29uc2VsdmFuIGRlIE9saXZlaXJhIDxhbmRlci5jb25zZWx2YW4u ZGUub2xpdmVpcmFAaW50ZWwuY29tPgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRl bF9jb2xvci5jIHwgNCArKy0tCj4gIDEgZmlsZSBjaGFuZ2VkLCAyIGluc2VydGlvbnMoKyksIDIg ZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs X2NvbG9yLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9jb2xvci5jCj4gaW5kZXggYjll NTI2NmQuLjMwNmM2YjAgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf Y29sb3IuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2NvbG9yLmMKPiBAQCAt NDY1LDE0ICs0NjUsMTQgQEAgc3RhdGljIHZvaWQgZ2xrX2xvYWRfZGVnYW1tYV9sdXQoc3RydWN0 IGRybV9jcnRjX3N0YXRlICpzdGF0ZSkKPiAgCSAqICBkaWZmZXJlbnQgdmFsdWVzIHBlciBjaGFu bmVsLCBzbyB0aGlzIGp1c3QgbG9hZHMgYSBsaW5lYXIgdGFibGUuCj4gIAkgKi8KPiAgCWZvciAo aSA9IDA7IGkgPCBsdXRfc2l6ZTsgaSsrKSB7Cj4gLQkJdWludDMyX3QgdiA9IChpICogKCgxIDw8 IDE2KSAtIDEpKSAvIChsdXRfc2l6ZSAtIDEpOwo+ICsJCXVpbnQzMl90IHYgPSAoaSAqICgxIDw8 IDE2KSkgLyAobHV0X3NpemUgLSAxKTsKPiAgCj4gIAkJSTkxNV9XUklURShQUkVfQ1NDX0dBTUNf REFUQShwaXBlKSwgdik7Cj4gIAl9Cj4gIAo+ICAJLyogQ2xhbXAgdmFsdWVzID4gMS4wLiAqLwo+ ICAJd2hpbGUgKGkrKyA8IDM1KQo+IC0JCUk5MTVfV1JJVEUoUFJFX0NTQ19HQU1DX0RBVEEocGlw ZSksICgxIDw8IDE2KSAtIDEpOwo+ICsJCUk5MTVfV1JJVEUoUFJFX0NTQ19HQU1DX0RBVEEocGlw ZSksICgxIDw8IDE2KSk7Cj4gIH0KPiAgCj4gIHN0YXRpYyB2b2lkIGdsa19sb2FkX2x1dHMoc3Ry dWN0IGRybV9jcnRjX3N0YXRlICpzdGF0ZSkKPiAtLSAKPiAyLjkuMwo+IAo+IF9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCj4gSW50ZWwtZ2Z4IG1haWxpbmcg bGlzdAo+IEludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKPiBodHRwczovL2xpc3RzLmZy ZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAoKLS0gClZpbGxlIFN5cmrD pGzDpApJbnRlbCBPVEMKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Au b3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwt Z2Z4Cg==