RE: Partial updates with glX/DRI

2009-08-30 Thread thomas.cook...@nokia.com
While I have this working, it seems a little hacky and isn't widely supported (I have it working on 1 driver build for 1 bit of hardware). If you mean rendering to pixmaps isn't widely supported, that should be getting better with DRI2. I hope so. Although even with DRI2, I

RE: Partial updates with glX/DRI

2009-08-30 Thread Michel Dänzer
On Sun, 2009-08-30 at 09:35 +0200, thomas.cook...@nokia.com wrote: While I have this working, it seems a little hacky and isn't widely supported (I have it working on 1 driver build for 1 bit of hardware). If you mean rendering to pixmaps isn't widely supported, that

RE: Partial updates with glX/DRI

2009-08-27 Thread thomas.cooksey
While I have this working, it seems a little hacky and isn't widely supported (I have it working on 1 driver build for 1 bit of hardware). If you mean rendering to pixmaps isn't widely supported, that should be getting better with DRI2. I hope so. Although even with DRI2, I think my

RE: Partial updates with glX/DRI

2009-08-27 Thread Michel Dänzer
On Thu, 2009-08-27 at 22:35 +0200, thomas.cook...@nokia.com wrote: While I have this working, it seems a little hacky and isn't widely supported (I have it working on 1 driver build for 1 bit of hardware). If you mean rendering to pixmaps isn't widely supported, that should be

Re: Partial updates with glX/DRI

2009-08-24 Thread Tom Cooksey
On Friday 21 August 2009 16:47:23 ext Michel Dänzer wrote: On Fri, 2009-08-21 at 11:45 +0200, Tom Cooksey wrote: When using glX, we have no guarantee over what state the back buffer will be in after swap buffers. So, whenever an application needs to update, it must re- render the entire

Re: Partial updates with glX/DRI

2009-08-24 Thread Michel Dänzer
On Mon, 2009-08-24 at 08:31 +0200, Tom Cooksey wrote: On Friday 21 August 2009 16:47:23 ext Michel Dänzer wrote: On Fri, 2009-08-21 at 11:45 +0200, Tom Cooksey wrote: When using glX, we have no guarantee over what state the back buffer will be in after swap buffers. So, whenever an

Partial updates with glX/DRI

2009-08-21 Thread Tom Cooksey
Hello, I'm a Qt developer. We want all Qt rendering to be done using OpenGL 2. We have this working pretty well (a few artifacts still here and there). However, we've found some fundamental problems using GL for regular widget rendering. Normally I wouldn't bother this list, but I've recently

Re: Partial updates with glX/DRI

2009-08-21 Thread Roland Scheidegger
On 21.08.2009 11:45, Tom Cooksey wrote: Hello, I'm a Qt developer. We want all Qt rendering to be done using OpenGL 2. We have this working pretty well (a few artifacts still here and there). However, we've found some fundamental problems using GL for regular widget rendering. Normally

Re: Partial updates with glX/DRI

2009-08-21 Thread Brian Paul
Roland Scheidegger wrote: On 21.08.2009 11:45, Tom Cooksey wrote: Hello, I'm a Qt developer. We want all Qt rendering to be done using OpenGL 2. We have this working pretty well (a few artifacts still here and there). However, we've found some fundamental problems using GL for regular

Re: Partial updates with glX/DRI

2009-08-21 Thread Michel Dänzer
On Fri, 2009-08-21 at 11:45 +0200, Tom Cooksey wrote: When using glX, we have no guarantee over what state the back buffer will be in after swap buffers. So, whenever an application needs to update, it must re- render the entire window. This makes things slow (we have to invoke every

Re: Partial updates with glX/DRI

2009-08-21 Thread Ian Romanick
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michel Dänzer wrote: On Fri, 2009-08-21 at 11:45 +0200, Tom Cooksey wrote: When using glX, we have no guarantee over what state the back buffer will be in after swap buffers. So, whenever an application needs to update, it must re- render the