On Wed, Jun 13, 2018 at 09:39:08AM +0300, Pohjolainen, Topi wrote:
> On Tue, Jun 12, 2018 at 12:22:02PM -0700, Nanley Chery wrote:
> > ---
> > src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 40 ++++++++++++-------
> > 1 file changed, 26 insertions(+), 14 deletions(-)
> >
> > diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> > b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> > index cfb83d15ecc..5e00da86d32 100644
> > --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> > +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> > @@ -677,6 +677,23 @@ make_separate_stencil_surface(struct brw_context *brw,
> > return true;
> > }
> >
> > +/* Return the usual surface usage flags for the given format. */
> > +static isl_surf_usage_flags_t
> > +mt_surf_usage(mesa_format format)
> > +{
> > + switch(_mesa_get_format_base_format(format)) {
> > + case GL_DEPTH_COMPONENT:
> > + return ISL_SURF_USAGE_DEPTH_BIT | ISL_SURF_USAGE_TEXTURE_BIT;
> > + case GL_DEPTH_STENCIL:
> > + return ISL_SURF_USAGE_DEPTH_BIT | ISL_SURF_USAGE_STENCIL_BIT |
> > + ISL_SURF_USAGE_TEXTURE_BIT;
> > + case GL_STENCIL_INDEX:
> > + return ISL_SURF_USAGE_STENCIL_BIT | ISL_SURF_USAGE_TEXTURE_BIT;
> > + default:
> > + return ISL_SURF_USAGE_RENDER_TARGET_BIT | ISL_SURF_USAGE_TEXTURE_BIT;
> > + }
> > +}
> > +
> > static struct intel_mipmap_tree *
> > miptree_create(struct brw_context *brw,
> > GLenum target,
> > @@ -713,8 +730,7 @@ miptree_create(struct brw_context *brw,
> > return make_surface(brw, target, mt_fmt, first_level, last_level,
> > width0, height0, depth0, num_samples,
> > tiling_flags,
> > - ISL_SURF_USAGE_STENCIL_BIT |
> > - ISL_SURF_USAGE_TEXTURE_BIT,
>
> New logic also sets ISL_SURF_USAGE_DEPTH_BIT here.
>
How so? The base format of MESA_FORMAT_S_UINT8 is GL_STENCIL_INDEX.
> > + mt_surf_usage(mt_fmt),
> > alloc_flags,
> > 0,
> > NULL);
> > @@ -726,7 +742,7 @@ miptree_create(struct brw_context *brw,
> > brw, target, mt_fmt,
> > first_level, last_level,
> > width0, height0, depth0, num_samples, tiling_flags,
> > - ISL_SURF_USAGE_DEPTH_BIT | ISL_SURF_USAGE_TEXTURE_BIT,
> > + mt_surf_usage(mt_fmt),
> > alloc_flags, 0, NULL);
> >
> > if (needs_separate_stencil(brw, mt, format) &&
> > @@ -746,8 +762,7 @@ miptree_create(struct brw_context *brw,
> > first_level, last_level,
> > width0, height0, depth0,
> > num_samples, tiling_flags,
> > - ISL_SURF_USAGE_RENDER_TARGET_BIT |
> > - ISL_SURF_USAGE_TEXTURE_BIT,
> > + mt_surf_usage(mt_fmt),
> > alloc_flags, 0, NULL);
> > if (!mt)
> > return NULL;
> > @@ -816,12 +831,11 @@ intel_miptree_create_for_bo(struct brw_context *brw,
> >
> > if ((base_format == GL_DEPTH_COMPONENT ||
> > base_format == GL_DEPTH_STENCIL)) {
> > - const mesa_format depth_only_format =
> > - intel_depth_format_for_depthstencil_format(format);
> > - mt = make_surface(brw, target,
> > - devinfo->gen >= 6 ? depth_only_format : format,
> > + mesa_format mt_fmt = (devinfo->gen < 6) ? format :
> > +
> > intel_depth_format_for_depthstencil_format(format);
> > + mt = make_surface(brw, target, mt_fmt,
> > 0, 0, width, height, depth, 1, ISL_TILING_Y0_BIT,
> > - ISL_SURF_USAGE_DEPTH_BIT |
> > ISL_SURF_USAGE_TEXTURE_BIT,
> > + mt_surf_usage(mt_fmt),
> > 0, pitch, bo);
> > if (!mt)
> > return NULL;
> > @@ -836,8 +850,7 @@ intel_miptree_create_for_bo(struct brw_context *brw,
> > mt = make_surface(brw, target, MESA_FORMAT_S_UINT8,
> > 0, 0, width, height, depth, 1,
> > ISL_TILING_W_BIT,
> > - ISL_SURF_USAGE_STENCIL_BIT |
> > - ISL_SURF_USAGE_TEXTURE_BIT,
> > + mt_surf_usage(MESA_FORMAT_S_UINT8),
>
> Same here, new logic also sets ISL_SURF_USAGE_DEPTH_BIT here.
>
How so?
-Nanley
> > 0, pitch, bo);
> > if (!mt)
> > return NULL;
> > @@ -862,8 +875,7 @@ intel_miptree_create_for_bo(struct brw_context *brw,
> > mt = make_surface(brw, target, format,
> > 0, 0, width, height, depth, 1,
> > 1lu << tiling,
> > - ISL_SURF_USAGE_RENDER_TARGET_BIT |
> > - ISL_SURF_USAGE_TEXTURE_BIT,
> > + mt_surf_usage(format),
> > 0, pitch, bo);
> > if (!mt)
> > return NULL;
> > --
> > 2.17.0
> >
> > _______________________________________________
> > mesa-dev mailing list
> > mesa-dev@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/mesa-dev
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