On Fri., Jul. 26, 2019, 15:58 Lepton Wu, <lep...@chromium.org> wrote:
> If shader A depends on shader B, should we put st_update_shaderB in > front of st_update_shaderA? > That's the current order. The order of GPU execution doesn't matter. M. > Now the order looks like reversed... > > On Fri, Jul 26, 2019 at 12:34 PM Marek Olšák <mar...@gmail.com> wrote: > > > > The order shouldn't matter, but there can be a reason behind it, e.g. if > a shader depends on the update of the following shader. > > > > Marek > > > > On Wed, Jul 24, 2019 at 7:19 PM Lepton Wu <lep...@chromium.org> wrote: > >> > >> In src/mesa/state_tracker/st_atom_list.h, > >> > >> Now it's this order: > >> > >> ST_STATE(ST_NEW_FS_STATE, st_update_fp) > >> ST_STATE(ST_NEW_GS_STATE, st_update_gp) > >> ST_STATE(ST_NEW_TES_STATE, st_update_tep) > >> ST_STATE(ST_NEW_TCS_STATE, st_update_tcp) > >> ST_STATE(ST_NEW_VS_STATE, st_update_vp) > >> > >> While code in > >> src/mesa/state_tracker/st_atom.c: > >> > >> while (dirty_lo) > >> update_functions[u_bit_scan(&dirty_lo)](st); > >> > >> That means if will call st_update_fp first and then st_update_gp... etc. > >> > >> But this is inconsistent with opengl pipeline: should we reverse the > >> order here or I missed something? > >> > >> Background: > >> > >> https://gitlab.freedesktop.org/virgl/virglrenderer/issues/114 > >> _______________________________________________ > >> mesa-dev mailing list > >> mesa-dev@lists.freedesktop.org > >> https://lists.freedesktop.org/mailman/listinfo/mesa-dev >
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