nir: drop support for using load_alpha_ref_float
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
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9d0523b569
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5af272b474
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@ -40,6 +40,7 @@ nir_lower_alpha_test(nir_shader *shader, enum compare_func func,
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bool alpha_to_one,
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const gl_state_index16 *alpha_ref_state_tokens)
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{
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assert(alpha_ref_state_tokens);
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assert(shader->info.stage == MESA_SHADER_FRAGMENT);
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nir_foreach_function(function, shader) {
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@ -94,20 +95,16 @@ nir_lower_alpha_test(nir_shader *shader, enum compare_func func,
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3);
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}
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nir_ssa_def *alpha_ref;
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if (alpha_ref_state_tokens) {
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nir_variable *var = nir_variable_create(shader,
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nir_var_uniform,
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glsl_float_type(),
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"gl_AlphaRefMESA");
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var->num_state_slots = 1;
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var->state_slots = ralloc_array(var, nir_state_slot, 1);
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memcpy(var->state_slots[0].tokens,
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alpha_ref_state_tokens,
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sizeof(var->state_slots[0].tokens));
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alpha_ref = nir_load_var(&b, var);
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} else
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alpha_ref = nir_load_alpha_ref_float(&b);
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nir_variable *var = nir_variable_create(shader,
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nir_var_uniform,
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glsl_float_type(),
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"gl_AlphaRefMESA");
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var->num_state_slots = 1;
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var->state_slots = ralloc_array(var, nir_state_slot, 1);
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memcpy(var->state_slots[0].tokens,
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alpha_ref_state_tokens,
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sizeof(var->state_slots[0].tokens));
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nir_ssa_def *alpha_ref = nir_load_var(&b, var);
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nir_ssa_def *condition =
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nir_compare_func(&b, func, alpha, alpha_ref);
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