From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ayan Halder Subject: Re: [PATCH 01/19] drm/fourcc: Add a function to tell if the format embeds alpha Date: Tue, 16 Jan 2018 10:37:59 +0000 Message-ID: <20180116103759.GB28269@arm.com> References: <1796930.sWoKI78acY@avalon> <20180109132833.petfgnh3fvbbvosv@flea> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from EUR01-HE1-obe.outbound.protection.outlook.com (mail-he1eur01on0056.outbound.protection.outlook.com [104.47.0.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id 69A176E1E5 for ; Tue, 16 Jan 2018 10:38:07 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20180109132833.petfgnh3fvbbvosv@flea> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Maxime Ripard Cc: Thomas Petazzoni , Boris Brezillon , nd@arm.com, Seung-Woo Kim , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Kyungmin Park , Laurent Pinchart , Mark Yao , Daniel Vetter , Chen-Yu Tsai , linux-arm-kernel@lists.infradead.org, thomas@vitsch.nl List-Id: dri-devel@lists.freedesktop.org T24gVHVlLCBKYW4gMDksIDIwMTggYXQgMDI6Mjg6MzNQTSArMDEwMCwgTWF4aW1lIFJpcGFyZCB3 cm90ZToKPiBIaSBMYXVyZW50LAo+IAo+IE9uIFR1ZSwgSmFuIDA5LCAyMDE4IGF0IDAyOjI5OjU4 UE0gKzAyMDAsIExhdXJlbnQgUGluY2hhcnQgd3JvdGU6Cj4gPiBPbiBUdWVzZGF5LCA5IEphbnVh cnkgMjAxOCAxMjo1NjoyMCBFRVQgTWF4aW1lIFJpcGFyZCB3cm90ZToKPiA+ID4gVGhlcmUncyBh IGJ1bmNoIG9mIGRyaXZlcnMgdGhhdCBkdXBsaWNhdGUgdGhlIHNhbWUgZnVuY3Rpb24gdG8ga25v dyBpZiBhCj4gPiA+IHBhcnRpY3VsYXIgZm9ybWF0IGVtYmVkcyBhbiBhbHBoYSBjb21wb25lbnQg b3Igbm90Lgo+ID4gPiAKPiA+ID4gTGV0J3MgY3JlYXRlIGEgaGVscGVyIHRvIGF2b2lkIGR1cGxp Y2F0aW5nIHRoYXQgbG9naWMuCj4gPiA+IAo+ID4gPiBDYzogQm9yaXMgQnJlemlsbG9uIDxib3Jp cy5icmV6aWxsb25AZnJlZS1lbGVjdHJvbnMuY29tPgo+ID4gPiBDYzogRXJpYyBBbmhvbHQgPGVy aWNAYW5ob2x0Lm5ldD4KPiA+ID4gQ2M6IElua2kgRGFlIDxpbmtpLmRhZUBzYW1zdW5nLmNvbT4K PiA+ID4gQ2M6IEpvb255b3VuZyBTaGltIDxqeTA5MjIuc2hpbUBzYW1zdW5nLmNvbT4KPiA+ID4g Q2M6IEt5dW5nbWluIFBhcmsgPGt5dW5nbWluLnBhcmtAc2Ftc3VuZy5jb20+Cj4gPiA+IENjOiBM YXVyZW50IFBpbmNoYXJ0IDxsYXVyZW50LnBpbmNoYXJ0QGlkZWFzb25ib2FyZC5jb20+Cj4gPiA+ IENjOiBNYXJrIFlhbyA8bWFyay55YW9Acm9jay1jaGlwcy5jb20+Cj4gPiA+IENjOiBTZXVuZy1X b28gS2ltIDxzdzAzMTIua2ltQHNhbXN1bmcuY29tPgo+ID4gPiBTaWduZWQtb2ZmLWJ5OiBNYXhp bWUgUmlwYXJkIDxtYXhpbWUucmlwYXJkQGZyZWUtZWxlY3Ryb25zLmNvbT4KPiA+ID4gLS0tCj4g PiA+ICBkcml2ZXJzL2dwdS9kcm0vZHJtX2ZvdXJjYy5jIHwgNDMgKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrKy0KPiA+ID4gIGluY2x1ZGUvZHJtL2RybV9mb3VyY2MuaCAgICAg fCAgMSArLQo+ID4gPiAgMiBmaWxlcyBjaGFuZ2VkLCA0NCBpbnNlcnRpb25zKCspCj4gPiA+IAo+ ID4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2RybV9mb3VyY2MuYyBiL2RyaXZlcnMv Z3B1L2RybS9kcm1fZm91cmNjLmMKPiA+ID4gaW5kZXggOWMwMTUyZGY0NWFkLi42ZTYyMjdkNmE0 NmIgMTAwNjQ0Cj4gPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZm91cmNjLmMKPiA+ID4g KysrIGIvZHJpdmVycy9ncHUvZHJtL2RybV9mb3VyY2MuYwo+ID4gPiBAQCAtMzQ4LDMgKzM0OCw0 NiBAQCBpbnQgZHJtX2Zvcm1hdF9wbGFuZV9oZWlnaHQoaW50IGhlaWdodCwgdWludDMyX3QKPiA+ ID4gZm9ybWF0LCBpbnQgcGxhbmUpIHJldHVybiBoZWlnaHQgLyBpbmZvLT52c3ViOwo+ID4gPiAg fQo+ID4gPiAgRVhQT1JUX1NZTUJPTChkcm1fZm9ybWF0X3BsYW5lX2hlaWdodCk7Cj4gPiA+ICsK PiA+ID4gKy8qKgo+ID4gPiArICogZHJtX2Zvcm1hdF9oYXNfYWxwaGEgLSBnZXQgd2hldGhlciB0 aGUgZm9ybWF0IGVtYmVkcyBhbiBhbHBoYSBjb21wb25lbnQKPiA+ID4gKyAqIEBmb3JtYXQ6IHBp eGVsIGZvcm1hdCAoRFJNX0ZPUk1BVF8qKQo+ID4gPiArICoKPiA+ID4gKyAqIFJldHVybnM6Cj4g PiA+ICsgKiB0cnVlIGlmIHRoZSBmb3JtYXQgZW1iZWRzIGFuIGFscGhhIGNvbXBvbmVudCwgZmFs c2Ugb3RoZXJ3aXNlLgo+ID4gPiArICovCj4gPiA+ICtib29sIGRybV9mb3JtYXRfaGFzX2FscGhh KHVpbnQzMl90IGZvcm1hdCkKPiA+ID4gK3sKPiA+ID4gKwlzd2l0Y2ggKGZvcm1hdCkgewo+ID4g PiArCWNhc2UgRFJNX0ZPUk1BVF9BUkdCNDQ0NDoKPiA+ID4gKwljYXNlIERSTV9GT1JNQVRfQUJH UjQ0NDQ6Cj4gPiA+ICsJY2FzZSBEUk1fRk9STUFUX1JHQkE0NDQ0Ogo+ID4gPiArCWNhc2UgRFJN X0ZPUk1BVF9CR1JBNDQ0NDoKPiA+ID4gKwljYXNlIERSTV9GT1JNQVRfQVJHQjE1NTU6Cj4gPiA+ ICsJY2FzZSBEUk1fRk9STUFUX0FCR1IxNTU1Ogo+ID4gPiArCWNhc2UgRFJNX0ZPUk1BVF9SR0JB NTU1MToKPiA+ID4gKwljYXNlIERSTV9GT1JNQVRfQkdSQTU1NTE6Cj4gPiA+ICsJY2FzZSBEUk1f Rk9STUFUX0FSR0I4ODg4Ogo+ID4gPiArCWNhc2UgRFJNX0ZPUk1BVF9BQkdSODg4ODoKPiA+ID4g KwljYXNlIERSTV9GT1JNQVRfUkdCQTg4ODg6Cj4gPiA+ICsJY2FzZSBEUk1fRk9STUFUX0JHUkE4 ODg4Ogo+ID4gPiArCWNhc2UgRFJNX0ZPUk1BVF9BUkdCMjEwMTAxMDoKPiA+ID4gKwljYXNlIERS TV9GT1JNQVRfQUJHUjIxMDEwMTA6Cj4gPiA+ICsJY2FzZSBEUk1fRk9STUFUX1JHQkExMDEwMTAy Ogo+ID4gPiArCWNhc2UgRFJNX0ZPUk1BVF9CR1JBMTAxMDEwMjoKPiA+ID4gKwljYXNlIERSTV9G T1JNQVRfQVlVVjoKPiA+ID4gKwljYXNlIERSTV9GT1JNQVRfWFJHQjg4ODhfQTg6Cj4gPiA+ICsJ Y2FzZSBEUk1fRk9STUFUX1hCR1I4ODg4X0E4Ogo+ID4gPiArCWNhc2UgRFJNX0ZPUk1BVF9SR0JY ODg4OF9BODoKPiA+ID4gKwljYXNlIERSTV9GT1JNQVRfQkdSWDg4ODhfQTg6Cj4gPiA+ICsJY2Fz ZSBEUk1fRk9STUFUX1JHQjg4OF9BODoKPiA+ID4gKwljYXNlIERSTV9GT1JNQVRfQkdSODg4X0E4 Ogo+ID4gPiArCWNhc2UgRFJNX0ZPUk1BVF9SR0I1NjVfQTg6Cj4gPiA+ICsJY2FzZSBEUk1fRk9S TUFUX0JHUjU2NV9BODoKPiA+ID4gKwkJcmV0dXJuIHRydWU7Cj4gPiA+ICsKPiA+ID4gKwlkZWZh dWx0Ogo+ID4gPiArCQlyZXR1cm4gZmFsc2U7Cj4gPiA+ICsJfQo+ID4gPiArfQo+ID4gPiArRVhQ T1JUX1NZTUJPTChkcm1fZm9ybWF0X2hhc19hbHBoYSk7Cj4gPiAKPiA+IEhvdyBhYm91dCBhZGRp bmcgdGhlIGluZm9ybWF0aW9uIHRvIHN0cnVjdCBkcm1fZm9ybWF0X2luZm8gaW5zdGVhZCA/IAo+ ID4gZHJtX2Zvcm1hdF9oYXNfYWxwaGEoKSBjb3VsZCB0aGVuIGJlIGltcGxlbWVudGVkIGFzCj4g PiAKPiA+IGJvb2wgZHJtX2Zvcm1hdF9oYXNfYWxwaGEodWludDMyX3QgZm9ybWF0KQo+ID4gewo+ ID4gCWNvbnN0IHN0cnVjdCBkcm1fZm9ybWF0X2luZm8gKmluZm87Cj4gPiAKPiA+IAlpbmZvID0g ZHJtX2Zvcm1hdF9pbmZvKGZvcm1hdCk7Cj4gPiAJcmV0dXJuIGluZm8gPyBpbmZvLT5oYXNfYWxw aGEgOiBmYWxzZTsKPiA+IH0KPiAKPiBJIGNvbnNpZGVyZWQgaXQsIGFuZCB3YXNuJ3QgdG9vIHN1 cmUgYWJvdXQgaWYgYWRkaW5nIG1vcmUgZmllbGRzIHRvCj4gZHJtX2Zvcm1hdF9pbmZvIHdhcyBv ay4gSSBjYW4gZGVmaW5pdGVseSBkbyBpdCB0aGF0IHdheS5cCkFyZSB5b3UgZ29pbmcgdG8gc2Vu ZCBhbiB1cGRhdGVkIHBhdGNoIHdpdGggdGhlIGNoYW5nZSBtZW50aW9uZWQgaGVyZS4KT3Igc2hv dWxkIEkgdXBkYXRlIG15IHBhdGNoIChodHRwczovL3BhdGNod29yay5rZXJuZWwub3JnL3BhdGNo LzEwMTYxMDIzLykKYW5kIGNoYW5nZSB0aGUgdHlwZSBvZiAnLmFscGhhJyB0byBib29sZWFuIHRv IGRlbm90ZSBpZiB0aGUgY29sb3IKZm9ybWF0IGhhcyBhbiBhbHBoYSBjaGFubmVsIG9yIG5vdC4K PiAKPiA+IGFsdGhvdWdoIGRyaXZlcnMgc2hvdWxkIHJlYWxseSB1c2UgdGhlIGRybV9mcmFtZWJ1 ZmZlcjo6Zm9ybWF0IGZpZWxkIGRpcmVjdGx5IAo+ID4gaW4gbW9zdCBjYXNlcywgc28gdGhlIGhl bHBlciBtaWdodCBub3QgYmUgbmVlZGVkIGF0IGFsbC4KPiAKPiBUaGUgZHJpdmVycyBjb252ZXJ0 ZWQgaW4gbXkgc2VyaWUgc2hvdWxkbid0IGJlIHRvbyBoYXJkIHRvIGNvbnZlcnQgdG8KPiB1c2Ug ZHJtX2Zvcm1hdF9pbmZvIGRpcmVjdGx5LCBzbyB0aGF0IGNhbiBiZSByZW1vdmVkIGFzIHdlbGwu Cj4gCj4gTWF4aW1lCj4gCj4gLS0gCj4gTWF4aW1lIFJpcGFyZCwgRnJlZSBFbGVjdHJvbnMKPiBF bWJlZGRlZCBMaW51eCBhbmQgS2VybmVsIGVuZ2luZWVyaW5nCj4gaHR0cDovL2ZyZWUtZWxlY3Ry b25zLmNvbQoKCgo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fCj4gZHJpLWRldmVsIG1haWxpbmcgbGlzdAo+IGRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3Rv cC5vcmcKPiBodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2Ry aS1kZXZlbAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K ZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==