Re: [Mesa-dev] [RFC PATCH] mesa: add support for multiple buffer mappings

2014-02-06 Thread Marek Olšák
On Thu, Feb 6, 2014 at 11:08 PM, Eric Anholt wrote: > Marek Olšák writes: > >> From: Marek Olšák >> >> OpenGL allows a buffer to be mapped only once, but we also map buffers >> internally, e.g. in the software primitive restart fallback, for PBOs, >> vbo_get_minmax_index, etc. This has always be

Re: [Mesa-dev] [RFC PATCH] mesa: add support for multiple buffer mappings

2014-02-06 Thread Fredrik Höglund
On Thursday 06 February 2014, Eric Anholt wrote: > Marek Olšák writes: > > > From: Marek Olšák > > > > OpenGL allows a buffer to be mapped only once, but we also map buffers > > internally, e.g. in the software primitive restart fallback, for PBOs, > > vbo_get_minmax_index, etc. This has always

Re: [Mesa-dev] [RFC PATCH] mesa: add support for multiple buffer mappings

2014-02-06 Thread Ian Romanick
On 02/05/2014 02:06 PM, Marek Olšák wrote: > From: Marek Olšák > > OpenGL allows a buffer to be mapped only once, but we also map buffers > internally, e.g. in the software primitive restart fallback, for PBOs, > vbo_get_minmax_index, etc. This has always been a problem, but it will > be a bigger

Re: [Mesa-dev] [RFC PATCH] mesa: add support for multiple buffer mappings

2014-02-06 Thread Brian Paul
On 02/05/2014 03:06 PM, Marek Olšák wrote: From: Marek Olšák OpenGL allows a buffer to be mapped only once, but we also map buffers internally, e.g. in the software primitive restart fallback, for PBOs, vbo_get_minmax_index, etc. This has always been a problem, but it will be a bigger problem w

Re: [Mesa-dev] [RFC PATCH] mesa: add support for multiple buffer mappings

2014-02-06 Thread Eric Anholt
Marek Olšák writes: > From: Marek Olšák > > OpenGL allows a buffer to be mapped only once, but we also map buffers > internally, e.g. in the software primitive restart fallback, for PBOs, > vbo_get_minmax_index, etc. This has always been a problem, but it will > be a bigger problem with persiste

[Mesa-dev] [RFC PATCH] mesa: add support for multiple buffer mappings

2014-02-05 Thread Marek Olšák
From: Marek Olšák OpenGL allows a buffer to be mapped only once, but we also map buffers internally, e.g. in the software primitive restart fallback, for PBOs, vbo_get_minmax_index, etc. This has always been a problem, but it will be a bigger problem with persistent buffer mappings, which will pr