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freedreno/a6xx: disable LRZ for z32

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f6131d4ec7 had the side effect of enabling LRZ w/ 32b depth buffers.
But there are some bugs with this, which aren't fully understood yet,
so for now just skip LRZ w/ z32..

Fixes: f6131d4ec7 freedreno/a6xx: Clear z32 and separate stencil with blitter
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2018-11-13 14:49:25 -05:00
parent 9595be67a9
commit 2773919f06
1 changed files with 13 additions and 1 deletions
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14
src/gallium/drivers/freedreno/a6xx/fd6_draw.c
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@ -371,6 +371,18 @@ fd6_clear_lrz(struct fd_batch *batch, struct fd_resource *zsbuf, double depth)
fd6_cache_flush(batch, ring);
}
static bool is_z32(enum pipe_format format)
{
switch (format) {
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
case PIPE_FORMAT_Z32_UNORM:
case PIPE_FORMAT_Z32_FLOAT:
return true;
default:
return false;
}
}
static bool
fd6_clear(struct fd_context *ctx, unsigned buffers,
const union pipe_color_union *color, double depth, unsigned stencil)
@ -398,7 +410,7 @@ fd6_clear(struct fd_context *ctx, unsigned buffers,
if (has_depth && (buffers & PIPE_CLEAR_DEPTH)) {
struct fd_resource *zsbuf = fd_resource(pfb->zsbuf->texture);
if (zsbuf->lrz) {
if (zsbuf->lrz && !is_z32(pfb->zsbuf->format)) {
zsbuf->lrz_valid = true;
fd6_clear_lrz(ctx->batch, zsbuf, depth);
}