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panfrost: do not report alpha-test as supported 

This triggers lowering in the state-tracker, which makes things a bit
simpler.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Erik Faye-Lund 2019-10-07 12:07:20 +02:00
parent 3298aedd6e
commit 2da792d398
3 changed files with 3 additions and 20 deletions
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9
src/gallium/drivers/panfrost/pan_assemble.c
View File

@ -59,15 +59,6 @@ panfrost_shader_compile(
s->info.stage = stage;
if (stage == MESA_SHADER_FRAGMENT) {
/* Inject the alpha test now if we need to */
if (state->alpha_state.enabled) {
NIR_PASS_V(s, nir_lower_alpha_test,
state->alpha_state.func, false, NULL);
}
}
/* Call out to Midgard compiler given the above NIR */
midgard_program program = {

3
src/gallium/drivers/panfrost/pan_screen.c
View File

@ -244,6 +244,9 @@ panfrost_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_MAX_VARYINGS:
return 16;
case PIPE_CAP_ALPHA_TEST:
return 0;
default:
return u_pipe_screen_get_param_defaults(screen, param);
}

11
src/panfrost/midgard/midgard_compile.c
View File

@ -1548,17 +1548,6 @@ emit_intrinsic(compiler_context *ctx, nir_intrinsic_instr *instr)
emit_ssbo_access(ctx, &instr->instr, false, reg, offset, indirect_offset, uindex);
break;
case nir_intrinsic_load_alpha_ref_float:
assert(instr->dest.is_ssa);
float ref_value = ctx->alpha_ref;
/* See emit_load_const */
float *v = ralloc_array(NULL, float, 4);
memcpy(v, &ref_value, sizeof(float));
_mesa_hash_table_u64_insert(ctx->ssa_constants, (instr->dest.ssa.index << 1) + 1, v);
break;
case nir_intrinsic_load_viewport_scale:
case nir_intrinsic_load_viewport_offset:
case nir_intrinsic_load_num_work_groups: