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panfrost: Un/pack R11G11B10

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NIR has a helper for it already; we can reuse.

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 18:06:58 -04:00
committed by Marge Bot
parent e24e248b84
commit 5d14757c03
1 changed files with 30 additions and 0 deletions
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30
src/panfrost/util/pan_lower_framebuffer.c
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@@ -416,6 +416,32 @@ pan_unpack_uint_1010102(nir_builder *b, nir_ssa_def *packed)
return nir_u2u16(b, mask);
}
/* NIR means we can *finally* catch a break */
static nir_ssa_def *
pan_pack_r11g11b10(nir_builder *b, nir_ssa_def *v)
{
return pan_replicate_4(b, nir_format_pack_11f11f10f(b,
nir_f2f32(b, v)));
}
static nir_ssa_def *
pan_unpack_r11g11b10(nir_builder *b, nir_ssa_def *v)
{
nir_ssa_def *f32 = nir_format_unpack_11f11f10f(b, nir_channel(b, v, 0));
nir_ssa_def *f16 = nir_f2f16(b, f32);
/* Extend to vec4 with alpha */
nir_ssa_def *components[4] = {
nir_channel(b, f16, 0),
nir_channel(b, f16, 1),
nir_channel(b, f16, 2),
nir_imm_float16(b, 1.0)
};
return nir_vec(b, components, 4);
}
/* Generic dispatches for un/pack regardless of format */
static bool
@@ -473,6 +499,8 @@ pan_unpack(nir_builder *b,
return pan_unpack_unorm_1010102(b, packed);
case PIPE_FORMAT_R10G10B10A2_UINT:
return pan_unpack_uint_1010102(b, packed);
case PIPE_FORMAT_R11G11B10_FLOAT:
return pan_unpack_r11g11b10(b, packed);
default:
break;
}
@@ -520,6 +548,8 @@ pan_pack(nir_builder *b,
return pan_pack_unorm_1010102(b, unpacked);
case PIPE_FORMAT_R10G10B10A2_UINT:
return pan_pack_uint_1010102(b, unpacked);
case PIPE_FORMAT_R11G11B10_FLOAT:
return pan_pack_r11g11b10(b, unpacked);
default:
break;
}