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panfrost: Un/pack RGB10_A2_UINT

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It's different. Because forget me.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5265>
This commit is contained in:
Alyssa Rosenzweig
2020-05-14 17:59:52 -04:00
committed by Marge Bot
parent 91cc678551
commit e24e248b84
1 changed files with 33 additions and 0 deletions
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33
src/panfrost/util/pan_lower_framebuffer.c
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@@ -387,6 +387,35 @@ pan_unpack_unorm_1010102(nir_builder *b, nir_ssa_def *packed)
return nir_f2f16(b, nir_fmul(b, nir_u2f32(b, nir_vec(b, chans, 4)), scale)); return nir_f2f16(b, nir_fmul(b, nir_u2f32(b, nir_vec(b, chans, 4)), scale));
} }
/* On the other hand, the pure int RGB10_A2 is identical to the spec */
static nir_ssa_def *
pan_pack_uint_1010102(nir_builder *b, nir_ssa_def *v)
{
nir_ssa_def *shift = nir_ishl(b, nir_u2u32(b, v),
nir_imm_ivec4(b, 0, 10, 20, 30));
nir_ssa_def *p = nir_ior(b,
nir_ior(b, nir_channel(b, shift, 0), nir_channel(b, shift, 1)),
nir_ior(b, nir_channel(b, shift, 2), nir_channel(b, shift, 3)));
return pan_replicate_4(b, p);
}
static nir_ssa_def *
pan_unpack_uint_1010102(nir_builder *b, nir_ssa_def *packed)
{
nir_ssa_def *chan = nir_channel(b, packed, 0);
nir_ssa_def *shift = nir_ushr(b, pan_replicate_4(b, chan),
nir_imm_ivec4(b, 0, 10, 20, 30));
nir_ssa_def *mask = nir_iand(b, shift,
nir_imm_ivec4(b, 0x3ff, 0x3ff, 0x3ff, 0x3));
return nir_u2u16(b, mask);
}
/* Generic dispatches for un/pack regardless of format */ /* Generic dispatches for un/pack regardless of format */
static bool static bool
@@ -442,6 +471,8 @@ pan_unpack(nir_builder *b,
return pan_unpack_unorm_565(b, packed); return pan_unpack_unorm_565(b, packed);
case PIPE_FORMAT_R10G10B10A2_UNORM: case PIPE_FORMAT_R10G10B10A2_UNORM:
return pan_unpack_unorm_1010102(b, packed); return pan_unpack_unorm_1010102(b, packed);
case PIPE_FORMAT_R10G10B10A2_UINT:
return pan_unpack_uint_1010102(b, packed);
default: default:
break; break;
} }
@@ -487,6 +518,8 @@ pan_pack(nir_builder *b,
return pan_pack_unorm_565(b, unpacked); return pan_pack_unorm_565(b, unpacked);
case PIPE_FORMAT_R10G10B10A2_UNORM: case PIPE_FORMAT_R10G10B10A2_UNORM:
return pan_pack_unorm_1010102(b, unpacked); return pan_pack_unorm_1010102(b, unpacked);
case PIPE_FORMAT_R10G10B10A2_UINT:
return pan_pack_uint_1010102(b, unpacked);
default: default:
break; break;
} }