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llvmpipe: add ARB_post_depth_coverage support.

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This doesn't pass thie piglits because currently they are broken
for case where GL upgrades 2 samples to 4

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5767>
This commit is contained in:
Dave Airlie 2020-03-26 13:27:17 +10:00
parent b8fcb62134
commit 3bb3e8940c
5 changed files with 34 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
.gitlab-ci/piglit/quick_gl.txt
View File

@ -542,46 +542,34 @@ spec/arb_sample_shading/samplemask 16: skip
spec/arb_sample_shading/samplemask 16 all: skip
spec/arb_sample_shading/samplemask 2 all/0.250000 mask_in_one: fail
spec/arb_sample_shading/samplemask 2 all/0.500000 mask_in_one: fail
spec/arb_sample_shading/samplemask 2 all/0.500000 partition: fail
spec/arb_sample_shading/samplemask 2 all/1.000000 mask_in_one: fail
spec/arb_sample_shading/samplemask 2 all/1.000000 partition: fail
spec/arb_sample_shading/samplemask 2 all/noms fix: fail
spec/arb_sample_shading/samplemask 2 all/noms mask_in_one: fail
spec/arb_sample_shading/samplemask 2 all/noms partition: fail
spec/arb_sample_shading/samplemask 2 all/sample mask_in_one: fail
spec/arb_sample_shading/samplemask 2 all/sample partition: fail
spec/arb_sample_shading/samplemask 2/0.250000 mask_in_one: fail
spec/arb_sample_shading/samplemask 2/0.500000 mask_in_one: fail
spec/arb_sample_shading/samplemask 2/0.500000 partition: fail
spec/arb_sample_shading/samplemask 2/1.000000 mask_in_one: fail
spec/arb_sample_shading/samplemask 2/1.000000 partition: fail
spec/arb_sample_shading/samplemask 2/noms fix: fail
spec/arb_sample_shading/samplemask 2/noms mask_in_one: fail
spec/arb_sample_shading/samplemask 2/noms partition: fail
spec/arb_sample_shading/samplemask 2/sample mask_in_one: fail
spec/arb_sample_shading/samplemask 2/sample partition: fail
spec/arb_sample_shading/samplemask 32: skip
spec/arb_sample_shading/samplemask 32 all: skip
spec/arb_sample_shading/samplemask 4 all/0.250000 mask_in_one: fail
spec/arb_sample_shading/samplemask 4 all/0.500000 mask_in_one: fail
spec/arb_sample_shading/samplemask 4 all/0.500000 partition: fail
spec/arb_sample_shading/samplemask 4 all/1.000000 mask_in_one: fail
spec/arb_sample_shading/samplemask 4 all/1.000000 partition: fail
spec/arb_sample_shading/samplemask 4 all/noms fix: fail
spec/arb_sample_shading/samplemask 4 all/noms mask_in_one: fail
spec/arb_sample_shading/samplemask 4 all/noms partition: fail
spec/arb_sample_shading/samplemask 4 all/sample mask_in_one: fail
spec/arb_sample_shading/samplemask 4 all/sample partition: fail
spec/arb_sample_shading/samplemask 4/0.250000 mask_in_one: fail
spec/arb_sample_shading/samplemask 4/0.500000 mask_in_one: fail
spec/arb_sample_shading/samplemask 4/0.500000 partition: fail
spec/arb_sample_shading/samplemask 4/1.000000 mask_in_one: fail
spec/arb_sample_shading/samplemask 4/1.000000 partition: fail
spec/arb_sample_shading/samplemask 4/noms fix: fail
spec/arb_sample_shading/samplemask 4/noms mask_in_one: fail
spec/arb_sample_shading/samplemask 4/noms partition: fail
spec/arb_sample_shading/samplemask 4/sample mask_in_one: fail
spec/arb_sample_shading/samplemask 4/sample partition: fail
spec/arb_sample_shading/samplemask 6: skip
spec/arb_sample_shading/samplemask 6 all: skip
spec/arb_sample_shading/samplemask 8: skip
@ -1684,8 +1672,8 @@ wgl/wgl-sanity: skip
summary:
name: results
---- --------
pass: 21841
fail: 214
pass: 21853
fail: 202
crash: 0
skip: 1445
timeout: 0

2
docs/features.txt
View File

@ -304,7 +304,7 @@ Khronos, ARB, and OES extensions that are not part of any OpenGL or OpenGL ES ve
GL_ARB_fragment_shader_interlock DONE (i965)
GL_ARB_gpu_shader_int64 DONE (i965/gen8+, nvc0, radeonsi, softpipe, llvmpipe)
GL_ARB_parallel_shader_compile DONE (all drivers)
GL_ARB_post_depth_coverage DONE (i965, nvc0, radeonsi)
GL_ARB_post_depth_coverage DONE (i965, nvc0, radeonsi, llvmpipe)
GL_ARB_robustness_isolation not started
GL_ARB_sample_locations DONE (nvc0)
GL_ARB_seamless_cubemap_per_texture DONE (etnaviv/SEAMLESS_CUBE_MAP, freedreno, i965, nvc0, r600, radeonsi, softpipe, swr, virgl)

1
docs/relnotes/new_features.txt
View File

@ -1,5 +1,6 @@
GL_ARB_compute_variable_group_size on Iris.
GL_ARB_gpu_shader5 on llvmpipe
GL_ARB_post_depth_coverage on llvmpipe
GL 4.2 on llvmpipe
GL_EXT_shader_group_vote on GLES3.
VK_AMD_texture_gather_bias_lod on RADV.

2
src/gallium/drivers/llvmpipe/lp_screen.c
View File

@ -373,7 +373,6 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
case PIPE_CAP_POST_DEPTH_COVERAGE:
case PIPE_CAP_BINDLESS_TEXTURE:
case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
case PIPE_CAP_MEMOBJ:
@ -406,6 +405,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_LOAD_CONSTBUF:
case PIPE_CAP_TEXTURE_MULTISAMPLE:
case PIPE_CAP_SAMPLE_SHADING:
case PIPE_CAP_POST_DEPTH_COVERAGE:
case PIPE_CAP_PACKED_UNIFORMS: {
struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
return !lscreen->use_tgsi;

31
src/gallium/drivers/llvmpipe/lp_state_fs.c
View File

@ -399,6 +399,7 @@ generate_fs_loop(struct gallivm_state *gallivm,
shader->info.base.num_instructions < 8) && 0;
const boolean dual_source_blend = key->blend.rt[0].blend_enable &&
util_blend_state_is_dual(&key->blend, 0);
const bool post_depth_coverage = shader->info.base.properties[TGSI_PROPERTY_FS_POST_DEPTH_COVERAGE];
unsigned attrib;
unsigned chan;
unsigned cbuf;
@ -539,6 +540,11 @@ generate_fs_loop(struct gallivm_state *gallivm,
LLVMValueRef s_mask_or = lp_build_alloca(gallivm, lp_build_int_vec_type(gallivm, type), "cov_mask_early_depth");
LLVMBuildStore(builder, LLVMConstNull(lp_build_int_vec_type(gallivm, type)), s_mask_or);
/* Create storage for post depth sample mask */
LLVMValueRef post_depth_sample_mask_in = NULL;
if (post_depth_coverage)
post_depth_sample_mask_in = lp_build_alloca(gallivm, int_vec_type, "post_depth_sample_mask_in");
LLVMValueRef s_mask = NULL, s_mask_ptr = NULL;
LLVMValueRef z_sample_value_store = NULL, s_sample_value_store = NULL;
LLVMValueRef z_fb_store = NULL, s_fb_store = NULL;
@ -651,6 +657,14 @@ generate_fs_loop(struct gallivm_state *gallivm,
tmp_s_mask_or = LLVMBuildOr(builder, tmp_s_mask_or, s_mask, "");
LLVMBuildStore(builder, tmp_s_mask_or, s_mask_or);
if (post_depth_coverage) {
LLVMValueRef mask_bit_idx = LLVMBuildShl(builder, lp_build_const_int32(gallivm, 1), sample_loop_state.counter, "");
LLVMValueRef post_depth_mask_in = LLVMBuildLoad(builder, post_depth_sample_mask_in, "");
mask_bit_idx = LLVMBuildAnd(builder, s_mask, lp_build_broadcast(gallivm, int_vec_type, mask_bit_idx), "");
post_depth_mask_in = LLVMBuildOr(builder, post_depth_mask_in, mask_bit_idx, "");
LLVMBuildStore(builder, post_depth_mask_in, post_depth_sample_mask_in);
}
LLVMBuildStore(builder, s_mask, s_mask_ptr);
lp_build_for_loop_end(&sample_loop_state);
@ -664,6 +678,11 @@ generate_fs_loop(struct gallivm_state *gallivm,
lp_build_interp_soa_update_pos_dyn(interp, gallivm, loop_state.counter, NULL);
lp_build_mask_update(&mask, tmp_s_mask_or);
}
} else {
if (post_depth_coverage) {
LLVMValueRef post_depth_mask_in = LLVMBuildAnd(builder, lp_build_mask_value(&mask), lp_build_const_int_vec(gallivm, type, 1), "");
LLVMBuildStore(builder, post_depth_mask_in, post_depth_sample_mask_in);
}
}
LLVMValueRef out_sample_mask_storage = NULL;
@ -673,6 +692,11 @@ generate_fs_loop(struct gallivm_state *gallivm,
LLVMBuildStore(builder, LLVMConstNull(int_vec_type), out_sample_mask_storage);
}
if (post_depth_coverage) {
system_values.sample_mask_in = LLVMBuildLoad(builder, post_depth_sample_mask_in, "");
}
else
system_values.sample_mask_in = sample_mask_in;
if (key->multisample && key->min_samples > 1) {
lp_build_for_loop_begin(&sample_loop_state, gallivm,
lp_build_const_int32(gallivm, 0),
@ -687,10 +711,13 @@ generate_fs_loop(struct gallivm_state *gallivm,
lp_build_mask_force(&mask, s_mask);
lp_build_interp_soa_update_pos_dyn(interp, gallivm, loop_state.counter, sample_loop_state.counter);
system_values.sample_id = sample_loop_state.counter;
} else
system_values.sample_mask_in = LLVMBuildAnd(builder, system_values.sample_mask_in,
lp_build_broadcast(gallivm, int_vec_type,
LLVMBuildShl(builder, lp_build_const_int32(gallivm, 1), sample_loop_state.counter, "")), "");
} 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);