On Sun, Sep 09, 2018 at 02:03:57PM +0200, Daniel Vetter wrote: > On Sat, Sep 08, 2018 at 03:58:53PM +0200, Neil Armstrong wrote: > > Hi Ayan, > > > > On 10/07/2018 15:18, Ayan Kumar Halder wrote: > > > In the current series of patches, we are trying to add support for AFBC > > > modifiers in malidp. AFBC modifiers adds some constraints to framebuffer > > > size, alignment, pitch, formats, etc. Here we are trying to add support > > > for one combination of AFBC modifier ie AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 | > > > AFBC_FORMAT_MOD_SPARSE | AFBC_FORMAT_MOD_YTR. > > > In future, we intend to add support for more combination of AFBC modifiers. > > > Currently, we are trying to enable a basic support of AFBC in malidp. > > > > Thanks for pushing AFBC support, this will help supporting it on other SoCs implementing support > > like Amlogic, Rockchip or Samsung. > > > > I have one question, is there a way to generate such AFBC buffers without the Mali GPU ? > > I mean, is there a way to generate some sample buffers with some of the modifier features > > to validate it without having the complete Mali GPU -> DRM chain ? > > An igt would be perfect. We've done that for i915 compressed buffers. Note > that it just needs to be an afbc buffer, not actually compressed. Setting > all the bits to indicate "uncompressed" for each block is what we did for > the i915 test. Actually no. The i915 test does try to put some compressed data into the buffer. I have also a pending patch series [1] that allows us to render to compressed buffers with cairo by compressing the results using the GPU. [1] https://patchwork.freedesktop.org/series/46876/ -- Ville Syrjälä Intel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
