Re: [Piglit] [PATCH] gl-1.0/swapbuffers-behavior: Try avoid reading from real front

2017-06-21 Thread Brian Paul
On 06/21/2017 09:35 AM, Thomas Hellstrom wrote: On 06/21/2017 05:22 PM, Brian Paul wrote: On 06/21/2017 08:34 AM, Thomas Hellstrom wrote: Hi Brian, On 06/21/2017 04:20 PM, Brian Paul wrote: On 06/21/2017 06:24 AM, Thomas Hellstrom wrote: Window systems (read dri3) that allocate a fake

Re: [Piglit] [PATCH] gl-1.0/swapbuffers-behavior: Try avoid reading from real front v2

2017-06-21 Thread Brian Paul
On 06/21/2017 10:29 AM, Thomas Hellstrom wrote: Window systems (read dri3) that allocate a fake frontbuffer on demand will effectively read out from the real front before the first swapbuffers after fake front creation, and the real front buffer content is subject to errors caused by, among

[Piglit] [PATCH] gl-1.0/swapbuffers-behavior: Try avoid reading from real front v2

2017-06-21 Thread Thomas Hellstrom
Window systems (read dri3) that allocate a fake frontbuffer on demand will effectively read out from the real front before the first swapbuffers after fake front creation, and the real front buffer content is subject to errors caused by, among other things, window reparenting. So increase the

Re: [Piglit] [PATCH] gl-1.0/swapbuffers-behavior: Try avoid reading from real front

2017-06-21 Thread Thomas Hellstrom
On 06/21/2017 05:22 PM, Brian Paul wrote: On 06/21/2017 08:34 AM, Thomas Hellstrom wrote: Hi Brian, On 06/21/2017 04:20 PM, Brian Paul wrote: On 06/21/2017 06:24 AM, Thomas Hellstrom wrote: Window systems (read dri3) that allocate a fake frontbuffer on demand will effectively read out from

Re: [Piglit] [PATCH] gl-1.0/swapbuffers-behavior: Try avoid reading from real front

2017-06-21 Thread Brian Paul
On 06/21/2017 08:34 AM, Thomas Hellstrom wrote: Hi Brian, On 06/21/2017 04:20 PM, Brian Paul wrote: On 06/21/2017 06:24 AM, Thomas Hellstrom wrote: Window systems (read dri3) that allocate a fake frontbuffer on demand will effectively read out from the real front before the first swapbuffers

Re: [Piglit] [PATCH] gl-1.0/swapbuffers-behavior: Try avoid reading from real front

2017-06-21 Thread Thomas Hellstrom
Hi Brian, On 06/21/2017 04:20 PM, Brian Paul wrote: On 06/21/2017 06:24 AM, Thomas Hellstrom wrote: Window systems (read dri3) that allocate a fake frontbuffer on demand will effectively read out from the real front before the first swapbuffers after fake front creation, and the real front

Re: [Piglit] [PATCH] gl-1.0/swapbuffers-behavior: Try avoid reading from real front

2017-06-21 Thread Brian Paul
On 06/21/2017 06:24 AM, Thomas Hellstrom wrote: Window systems (read dri3) that allocate a fake frontbuffer on demand will effectively read out from the real front before the first swapbuffers after fake front creation, and the real front buffer content is subject to errors caused by, among

[Piglit] [PATCH] gl-1.0/swapbuffers-behavior: Try avoid reading from real front

2017-06-21 Thread Thomas Hellstrom
Window systems (read dri3) that allocate a fake frontbuffer on demand will effectively read out from the real front before the first swapbuffers after fake front creation, and the real front buffer content is subject to errors caused by, among other things, window reparenting. So increase the