nir/lower_tex: Add support for lowering YUYV formats

v2: Rebase on bc438c91d9 ("nir/lower_tex: ignore texture_index if
tex_instr has deref src")

Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9610>
This commit is contained in:
Ian Romanick 2021-03-12 23:07:09 -08:00 committed by Marge Bot
parent 53fc6ba930
commit 880b00dc59
2 changed files with 24 additions and 0 deletions

View file

@ -4721,6 +4721,7 @@ typedef struct nir_lower_tex_options {
unsigned lower_ayuv_external;
unsigned lower_xyuv_external;
unsigned lower_yuv_external;
unsigned lower_yu_yv_external;
unsigned lower_y41x_external;
unsigned bt709_external;
unsigned bt2020_external;

View file

@ -490,6 +490,24 @@ lower_yuv_external(nir_builder *b, nir_tex_instr *tex,
texture_index);
}
static void
lower_yu_yv_external(nir_builder *b, nir_tex_instr *tex,
const nir_lower_tex_options *options,
unsigned texture_index)
{
b->cursor = nir_after_instr(&tex->instr);
nir_ssa_def *yuv = sample_plane(b, tex, 0, options);
convert_yuv_to_rgb(b, tex,
nir_channel(b, yuv, 1),
nir_channel(b, yuv, 2),
nir_channel(b, yuv, 0),
nir_imm_float(b, 1.0f),
options,
texture_index);
}
/*
* Converts a nir_texop_txd instruction to nir_texop_txl with the given lod
* computed from the gradients.
@ -1227,6 +1245,11 @@ nir_lower_tex_block(nir_block *block, nir_builder *b,
progress = true;
}
if ((1 << tex->texture_index) & options->lower_yu_yv_external) {
lower_yu_yv_external(b, tex, options, texture_index);
progress = true;
}
if ((1 << tex->texture_index) & options->lower_y41x_external) {
lower_y41x_external(b, tex, options, texture_index);
progress = true;