df2c774a83
This update is aimed at fixing pop-free clipping and follows the advices by Vitaliy Kuzmin: https://gitlab.freedesktop.org/mesa/mesa/-/issues/12440 This functionality requires calculating the value of the following two registers: PA_CL_GB_HORZ_DISC_ADJ and PA_CL_GB_VERT_DISC_ADJ. These two registers are available on all the gpus of the r600 family. This code is built on the backport of radeonsi updates which are relevant to this very functionality:57e658d041"radeonsi: rework how guardband registers are updated to decrease overhead"146c2b7c28"radeonsi: adjust clip discard based on line width / point size"4d74432dd3"radeonsi: don't discard points and lines"63680471f9"radeonsi: remove si_context::{scissor_enabled,clip_halfz}" This change was tested on rv770, barts and cayman: deqp-gles[2-3]/functional/clipping/line/wide_line_clip_viewport_center: fail pass deqp-gles[2-3]/functional/clipping/line/wide_line_clip_viewport_corner: fail pass deqp-gles[2-3]/functional/clipping/point/wide_point_clip: fail pass deqp-gles[2-3]/functional/clipping/point/wide_point_clip_viewport_center: fail pass deqp-gles[2-3]/functional/clipping/point/wide_point_clip_viewport_corner: fail pass Cc: mesa-stable Signed-off-by: Patrick Lerda <patrick9876@free.fr> Reviewed-by: Filip Gawin <filip@gawin.net> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35052>
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