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llvmpipe: add gl_SampleMaskIn support.

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Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5050>
This commit is contained in:
Dave Airlie 2020-03-26 12:32:35 +10:00
parent 310823eccd
commit ee90339cfb
1 changed files with 10 additions and 0 deletions
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10
src/gallium/drivers/llvmpipe/lp_state_fs.c
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@ -500,7 +500,9 @@ generate_fs_loop(struct gallivm_state *gallivm,
num_loop,
lp_build_const_int32(gallivm, 1));
LLVMValueRef sample_mask_in;
if (key->multisample) {
sample_mask_in = lp_build_const_int_vec(gallivm, type, 0);
/* create shader execution mask by combining all sample masks. */
for (unsigned s = 0; s < key->coverage_samples; s++) {
LLVMValueRef s_mask_idx = LLVMBuildMul(builder, num_loop, lp_build_const_int32(gallivm, s), "");
@ -510,11 +512,18 @@ generate_fs_loop(struct gallivm_state *gallivm,
mask_val = s_mask;
else
mask_val = LLVMBuildOr(builder, s_mask, mask_val, "");
LLVMValueRef mask_in = LLVMBuildAnd(builder, s_mask, lp_build_const_int_vec(gallivm, type, (1 << s)), "");
sample_mask_in = LLVMBuildOr(builder, sample_mask_in, mask_in, "");
}
} else {
sample_mask_in = lp_build_const_int_vec(gallivm, type, 1);
mask_ptr = LLVMBuildGEP(builder, mask_store,
&loop_state.counter, 1, "mask_ptr");
mask_val = LLVMBuildLoad(builder, mask_ptr, "");
LLVMValueRef mask_in = LLVMBuildAnd(builder, mask_val, lp_build_const_int_vec(gallivm, type, 1), "");
sample_mask_in = LLVMBuildOr(builder, sample_mask_in, mask_in, "");
}
/* 'mask' will control execution based on quad's pixel alive/killed state */
@ -678,6 +687,7 @@ generate_fs_loop(struct gallivm_state *gallivm,
} else
system_values.sample_id = lp_build_const_int32(gallivm, 0);
system_values.sample_mask_in = sample_mask_in;
system_values.sample_pos = sample_pos_array;
lp_build_interp_soa_update_inputs_dyn(interp, gallivm, loop_state.counter, mask_store, sample_loop_state.counter);