diff options
| author | Karol Herbst <[email protected]> | 2019-02-26 11:58:11 +0100 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2019-03-08 10:35:12 -0800 |
| commit | 8a8742d32799eeb52eb7dbd4fd134a028b099d4d (patch) | |
| tree | 34a10c0f7c7a4dca5defbfc58625a275abb0ee51 /src/mesa/program | |
| parent | bca28deb46235cae3079dba29c5a62cf2168e4b3 (diff) | |
prog_to_nir: fix write from vps to FOG
for fragment programs we already treat fog as a single component value,
but for vp we didn't.
Fixes fog related piglit tests with my out of tree Nouveau nir patches.
Signed-off-by: Karol Herbst <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa/program')
| -rw-r--r-- | src/mesa/program/prog_to_nir.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/mesa/program/prog_to_nir.c b/src/mesa/program/prog_to_nir.c index aa4f2aaf72a..cb1c19e9dfa 100644 --- a/src/mesa/program/prog_to_nir.c +++ b/src/mesa/program/prog_to_nir.c @@ -867,6 +867,11 @@ ptn_add_output_stores(struct ptn_compile *c) */ src = nir_channel(b, src, 2); } + if (c->prog->Target == GL_VERTEX_PROGRAM_ARB && + var->data.location == VARYING_SLOT_FOGC) { + /* result.fogcoord is a single component value */ + src = nir_channel(b, src, 0); + } unsigned num_components = glsl_get_vector_elements(var->type); nir_store_var(b, var, src, (1 << num_components) - 1); } @@ -950,7 +955,8 @@ setup_registers_and_variables(struct ptn_compile *c) reg->num_components = 4; nir_variable *var = rzalloc(shader, nir_variable); - if (c->prog->Target == GL_FRAGMENT_PROGRAM_ARB && i == FRAG_RESULT_DEPTH) + if ((c->prog->Target == GL_FRAGMENT_PROGRAM_ARB && i == FRAG_RESULT_DEPTH) || + (c->prog->Target == GL_VERTEX_PROGRAM_ARB && i == VARYING_SLOT_FOGC)) var->type = glsl_float_type(); else var->type = glsl_vec4_type(); |