diff options
| author | Dave Airlie <airlied@redhat.com> | 2015-12-19 14:43:14 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-01-01 09:43:53 +1000 |
| commit | 7351c7684f75704dfef82a25177e6c5284d8bb0a (patch) | |
| tree | 7aecef88be81816450cd1207e2c6f150637739f3 | |
| parent | 14506dcae20d89ae9380c7a4f1843586c59db16d (diff) | |
st/glsl_to_tgsi: setup writemask for double arrays and matricies.
It's important for the double instruction emission code that
the writemasks are correct going in for double so it know
which channels to replicate.
This fixes it for the array and matrix cases.
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 6eb31b330b..133ba3714a 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -2754,7 +2754,26 @@ glsl_to_tgsi_visitor::visit(ir_assignment *ir) */ if (ir->write_mask == 0) { assert(!ir->lhs->type->is_scalar() && !ir->lhs->type->is_vector()); - l.writemask = WRITEMASK_XYZW; + + if (ir->lhs->type->is_array() || ir->lhs->type->without_array()->is_matrix()) { + if (ir->lhs->type->without_array()->is_double()) { + switch (ir->lhs->type->without_array()->vector_elements) { + case 1: + l.writemask = WRITEMASK_X; + break; + case 2: + l.writemask = WRITEMASK_XY; + break; + case 3: + l.writemask = WRITEMASK_XYZ; + break; + case 4: + l.writemask = WRITEMASK_XYZW; + break; + } + } else + l.writemask = WRITEMASK_XYZW; + } } else if (ir->lhs->type->is_scalar() && !ir->lhs->type->is_double() && ir->lhs->variable_referenced()->data.mode == ir_var_shader_out) { |