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 <jason.ekstrand@intel.com>
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@ -334,7 +334,8 @@ public:
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void emit_pack_snorm_4x8(const dst_reg &dst, const src_reg &src0);
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uint32_t gather_channel(ir_texture *ir, uint32_t sampler);
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src_reg emit_mcs_fetch(ir_texture *ir, src_reg coordinate, src_reg sampler);
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src_reg emit_mcs_fetch(const glsl_type *coordinate_type, src_reg coordinate,
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src_reg sampler);
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void emit_gen6_gather_wa(uint8_t wa, dst_reg dst);
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void swizzle_result(ir_texture *ir, src_reg orig_val, uint32_t sampler);
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@ -2469,7 +2469,8 @@ vec4_visitor::visit(ir_call *ir)
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}
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src_reg
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vec4_visitor::emit_mcs_fetch(ir_texture *ir, src_reg coordinate, src_reg sampler)
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vec4_visitor::emit_mcs_fetch(const glsl_type *coordinate_type,
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src_reg coordinate, src_reg sampler)
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{
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vec4_instruction *inst =
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new(mem_ctx) vec4_instruction(SHADER_OPCODE_TXF_MCS,
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@ -2496,13 +2497,13 @@ vec4_visitor::emit_mcs_fetch(ir_texture *ir, src_reg coordinate, src_reg sampler
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}
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/* parameters are: u, v, r, lod; lod will always be zero due to api restrictions */
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int coord_mask = (1 << ir->coordinate->type->vector_elements) - 1;
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int coord_mask = (1 << coordinate_type->vector_elements) - 1;
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int zero_mask = 0xf & ~coord_mask;
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emit(MOV(dst_reg(MRF, param_base, ir->coordinate->type, coord_mask),
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emit(MOV(dst_reg(MRF, param_base, coordinate_type, coord_mask),
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coordinate));
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emit(MOV(dst_reg(MRF, param_base, ir->coordinate->type, zero_mask),
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emit(MOV(dst_reg(MRF, param_base, coordinate_type, zero_mask),
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src_reg(0)));
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emit(inst);
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@ -2625,7 +2626,7 @@ vec4_visitor::visit(ir_texture *ir)
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sample_index_type = ir->lod_info.sample_index->type;
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if (devinfo->gen >= 7 && key->tex.compressed_multisample_layout_mask & (1<<sampler))
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mcs = emit_mcs_fetch(ir, coordinate, sampler_reg);
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mcs = emit_mcs_fetch(ir->coordinate->type, coordinate, sampler_reg);
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else
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mcs = src_reg(0u);
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break;
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