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intel/isl: Don't align the height of the last array slice

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We were calculating the total height of 2D surfaces by multiplying the
row pitch by the number of slices.  This means that we actually request
slightly more space than actually needed since the padding on the last
slice is unnecessary.  For tiled surfaces this is not likely to make a
difference.  For linear surfaces, on the other hand, this means we may
require additional memory.  In particular, this makes the i965 driver
reject EGL imports of buffers which do not have this extra padding.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Cc: "17.2" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Jason Ekstrand 2017-08-02 12:18:25 -07:00
parent c15b92ce11
commit 4d27c6095e
1 changed files with 2 additions and 1 deletions
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3
src/intel/isl/isl.c
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@ -982,7 +982,8 @@ isl_calc_phys_total_extent_el_gen4_2d(
&phys_slice0_sa);
*total_extent_el = (struct isl_extent2d) {
.w = isl_assert_div(phys_slice0_sa.w, fmtl->bw),
.h = *array_pitch_el_rows * phys_level0_sa->array_len,
.h = *array_pitch_el_rows * (phys_level0_sa->array_len - 1) +
isl_assert_div(phys_slice0_sa.h, fmtl->bh),
};
}