diff options
Diffstat (limited to 'src/mesa/state_tracker')
| -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) { |