diff options
| author | Dave Airlie <[email protected]> | 2015-12-19 14:43:14 +1000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 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 <[email protected]>
| -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 6eb31b330b5..133ba3714a8 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) { |