diff options
| author | Kenneth Graunke <[email protected]> | 2013-09-09 15:36:59 -0700 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2013-09-10 17:52:36 -0700 |
| commit | 17eb1df7b8af800f03c5b1f35fdf4292abe32ea1 (patch) | |
| tree | 3a51b11224a2d04d1d426ba3d135780b015c9f57 /src/mesa/drivers | |
| parent | 66be7b4c2795b5a942f64821fc6525dfdfb3aba4 (diff) | |
i965/vec4: Simplify the computation of coord_mask and zero_mask.
We can easily compute these without loops, resulting in simpler and
shorter code.
Signed-off-by: Kenneth Graunke <[email protected]>
Suggested-by: Ian Romanick <[email protected]>
Reviewed-by: Chris Forbes <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp index 28dc313e431..a51b61baf03 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp @@ -2221,13 +2221,10 @@ vec4_visitor::visit(ir_texture *ir) int writemask = brw->gen == 4 ? WRITEMASK_W : WRITEMASK_X; emit(MOV(dst_reg(MRF, param_base, lod_type, writemask), lod)); } else { - int i, coord_mask = 0, zero_mask = 0; /* Load the coordinate */ /* FINISHME: gl_clamp_mask and saturate */ - for (i = 0; i < ir->coordinate->type->vector_elements; i++) - coord_mask |= (1 << i); - for (; i < 4; i++) - zero_mask |= (1 << i); + int coord_mask = (1 << ir->coordinate->type->vector_elements) - 1; + int zero_mask = 0xf & ~coord_mask; if (ir->offset && ir->op == ir_txf) { /* It appears that the ld instruction used for txf does its |