i965/vs: Rename "sampler" to "texunit" in texturing code.

The number we're passing around is actually the ID of the texture unit,
as opposed to the numerical value our of sampler uniforms.  Calling it
"texunit" clarifies this slightly.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 61b10e9..c22ba60 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -1833,7 +1833,7 @@ void
 vec4_visitor::visit(ir_texture *ir)
 {
    int sampler = _mesa_get_sampler_uniform_value(ir->sampler, prog, &vp->Base);
-   sampler = vp->Base.SamplerUnits[sampler];
+   int texunit = vp->Base.SamplerUnits[sampler];
 
    /* Should be lowered by do_lower_texture_projection */
    assert(!ir->projector);
@@ -1897,7 +1897,7 @@ vec4_visitor::visit(ir_texture *ir)
    inst->header_present = ir->offset || intel->gen < 5;
    inst->base_mrf = 2;
    inst->mlen = inst->header_present + 1; /* always at least one */
-   inst->sampler = sampler;
+   inst->sampler = texunit;
    inst->dst = dst_reg(this, ir->type);
    inst->shadow_compare = ir->shadow_comparitor != NULL;
 
@@ -1999,15 +1999,15 @@ vec4_visitor::visit(ir_texture *ir)
 
    emit(inst);
 
-   swizzle_result(ir, src_reg(inst->dst), sampler);
+   swizzle_result(ir, src_reg(inst->dst), texunit);
 }
 
 void
-vec4_visitor::swizzle_result(ir_texture *ir, src_reg orig_val, int sampler)
+vec4_visitor::swizzle_result(ir_texture *ir, src_reg orig_val, int texunit)
 {
    this->result = orig_val;
 
-   int s = c->key.tex.swizzles[sampler];
+   int s = c->key.tex.swizzles[texunit];
 
    if (ir->op == ir_txs || ir->type == glsl_type::float_type
                        || s == SWIZZLE_NOOP)