Re: [Mesa-dev] [PATCH 0/7] st/mesa: glReadPixels cache

2016-06-17 Thread Nicolai Hähnle
On 15.06.2016 17:16, Brian Paul wrote: On 06/15/2016 02:38 AM, Nicolai Hähnle wrote: Hi, some applications use successive calls to glReadPixels to read data back. This typically involves a GPU-based blit for each call for de-tiling or format conversions (e.g. BGRA -> RGBA). Even when the _mesa_

Re: [Mesa-dev] [PATCH 0/7] st/mesa: glReadPixels cache

2016-06-15 Thread Brian Paul
On 06/15/2016 02:38 AM, Nicolai Hähnle wrote: Hi, some applications use successive calls to glReadPixels to read data back. This typically involves a GPU-based blit for each call for de-tiling or format conversions (e.g. BGRA -> RGBA). Even when the _mesa_readpixels path is used, such a blit ten

[Mesa-dev] [PATCH 0/7] st/mesa: glReadPixels cache

2016-06-15 Thread Nicolai Hähnle
Hi, some applications use successive calls to glReadPixels to read data back. This typically involves a GPU-based blit for each call for de-tiling or format conversions (e.g. BGRA -> RGBA). Even when the _mesa_readpixels path is used, such a blit tends to be hidden behind the transfer operations.