i965/vec4: Change vec4_visitor::emit_mcs_fetch() method to allow reuse

This patch changes the signature of emit_mcs_fetch() to accept lower level
arguments. The purpose is to reuse it in the upcoming NIR->vec4 pass.

Reviewed-by: Jason Ekstrand <[email protected]>

2 files changed, 8 insertions, 6 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h
index aea21c5897d..ace0bf4437b 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -334,7 +334,8 @@ public:
    void emit_pack_snorm_4x8(const dst_reg &dst, const src_reg &src0);
 
    uint32_t gather_channel(ir_texture *ir, uint32_t sampler);
-   src_reg emit_mcs_fetch(ir_texture *ir, src_reg coordinate, src_reg sampler);
+   src_reg emit_mcs_fetch(const glsl_type *coordinate_type, src_reg coordinate,
+                          src_reg sampler);
    void emit_gen6_gather_wa(uint8_t wa, dst_reg dst);
    void swizzle_result(ir_texture *ir, src_reg orig_val, uint32_t sampler);
 
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 737c9fa6d27..3f157beff09 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -2469,7 +2469,8 @@ vec4_visitor::visit(ir_call *ir)
 }
 
 src_reg
-vec4_visitor::emit_mcs_fetch(ir_texture *ir, src_reg coordinate, src_reg sampler)
+vec4_visitor::emit_mcs_fetch(const glsl_type *coordinate_type,
+                             src_reg coordinate, src_reg sampler)
 {
    vec4_instruction *inst =
       new(mem_ctx) vec4_instruction(SHADER_OPCODE_TXF_MCS,
@@ -2496,13 +2497,13 @@ vec4_visitor::emit_mcs_fetch(ir_texture *ir, src_reg coordinate, src_reg sampler
    }
 
    /* parameters are: u, v, r, lod; lod will always be zero due to api restrictions */
-   int coord_mask = (1 << ir->coordinate->type->vector_elements) - 1;
+   int coord_mask = (1 << coordinate_type->vector_elements) - 1;
    int zero_mask = 0xf & ~coord_mask;
 
-   emit(MOV(dst_reg(MRF, param_base, ir->coordinate->type, coord_mask),
+   emit(MOV(dst_reg(MRF, param_base, coordinate_type, coord_mask),
             coordinate));
 
-   emit(MOV(dst_reg(MRF, param_base, ir->coordinate->type, zero_mask),
+   emit(MOV(dst_reg(MRF, param_base, coordinate_type, zero_mask),
             src_reg(0)));
 
    emit(inst);
@@ -2625,7 +2626,7 @@ vec4_visitor::visit(ir_texture *ir)
       sample_index_type = ir->lod_info.sample_index->type;
 
       if (devinfo->gen >= 7 && key->tex.compressed_multisample_layout_mask & (1<<sampler))
-         mcs = emit_mcs_fetch(ir, coordinate, sampler_reg);
+         mcs = emit_mcs_fetch(ir->coordinate->type, coordinate, sampler_reg);
       else
          mcs = src_reg(0u);
       break;