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panfrost/mfbd: Add Z32 rendering support 

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-07-15 07:10:31 -07:00
parent f8e2219b08
commit 1aaf68d120
1 changed files with 24 additions and 4 deletions
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28
src/gallium/drivers/panfrost/pan_mfbd.c
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@ -247,6 +247,20 @@ panfrost_mfbd_set_cbuf(
}
}
/* Is a format encoded like Z24S8 and therefore compatible for render? */
static bool
panfrost_is_z24s8_variant(enum pipe_format fmt)
{
switch (fmt) {
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
case PIPE_FORMAT_Z24X8_UNORM:
return true;
default:
return false;
}
}
static void
panfrost_mfbd_set_zsbuf(
struct bifrost_framebuffer *fb,
@ -263,7 +277,7 @@ panfrost_mfbd_set_zsbuf(
if (rsrc->layout == PAN_AFBC) {
/* The only Z/S format we can compress is Z24S8 or variants
* thereof (handled by the state tracker) */
assert(surf->format == PIPE_FORMAT_Z24_UNORM_S8_UINT);
assert(panfrost_is_z24s8_variant(surf->format));
mali_ptr base = rsrc->bo->gpu + offset;
unsigned header_size = rsrc->slices[level].header_size;
@ -286,14 +300,20 @@ panfrost_mfbd_set_zsbuf(
} else if (rsrc->layout == PAN_LINEAR) {
/* TODO: Z32F(S8) support, which is always linear */
assert(surf->format == PIPE_FORMAT_Z24_UNORM_S8_UINT);
int stride = rsrc->slices[level].stride;
fb->mfbd_flags |= MALI_MFBD_EXTRA;
fbx->flags |= MALI_EXTRA_PRESENT | MALI_EXTRA_ZS | 0x1;
fb->mfbd_flags |= MALI_MFBD_EXTRA;
fbx->flags |= MALI_EXTRA_PRESENT | MALI_EXTRA_ZS;
fbx->ds_linear.depth = rsrc->bo->gpu + offset;
fbx->ds_linear.depth_stride = stride;
if (panfrost_is_z24s8_variant(surf->format)) {
fbx->flags |= 0x1;
} else if (surf->format == PIPE_FORMAT_Z32_UNORM) {
/* default flags (0 in bottom place) */
}
} else {
assert(0);
}