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-rw-r--r--src/gallium/drivers/llvmpipe/lp_bld_depth.c4
-rw-r--r--src/gallium/drivers/llvmpipe/lp_screen.c2
-rw-r--r--src/gallium/drivers/llvmpipe/lp_state_fs.c25
-rw-r--r--src/gallium/drivers/llvmpipe/lp_surface.c5
4 files changed, 21 insertions, 15 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_depth.c b/src/gallium/drivers/llvmpipe/lp_bld_depth.c
index b6c32ffb979..b25e0413750 100644
--- a/src/gallium/drivers/llvmpipe/lp_bld_depth.c
+++ b/src/gallium/drivers/llvmpipe/lp_bld_depth.c
@@ -975,10 +975,6 @@ lp_build_depth_stencil_test(struct gallivm_state *gallivm,
s_bld.int_vec_type, "");
}
- /* convert scalar stencil refs into vectors */
- stencil_refs[0] = lp_build_broadcast_scalar(&s_bld, stencil_refs[0]);
- stencil_refs[1] = lp_build_broadcast_scalar(&s_bld, stencil_refs[1]);
-
s_pass_mask = lp_build_stencil_test(&s_bld, stencil,
stencil_refs, stencil_vals,
front_facing);
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 09ac9af50ec..47f1897c732 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -165,7 +165,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_DEPTH_CLIP_DISABLE:
return 1;
case PIPE_CAP_SHADER_STENCIL_EXPORT:
- return 0;
+ return 1;
case PIPE_CAP_TGSI_INSTANCEID:
case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
case PIPE_CAP_START_INSTANCE:
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index 35fe7b20181..b5ce8683f1a 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -260,7 +260,8 @@ generate_fs_loop(struct gallivm_state *gallivm,
{
const struct util_format_description *zs_format_desc = NULL;
const struct tgsi_token *tokens = shader->base.tokens;
- LLVMTypeRef vec_type;
+ struct lp_type int_type = lp_int_type(type);
+ LLVMTypeRef vec_type, int_vec_type;
LLVMValueRef mask_ptr, mask_val;
LLVMValueRef consts_ptr, num_consts_ptr;
LLVMValueRef z;
@@ -295,7 +296,7 @@ generate_fs_loop(struct gallivm_state *gallivm,
zs_format_desc = util_format_description(key->zsbuf_format);
assert(zs_format_desc);
- if (!shader->info.base.writes_z) {
+ if (!shader->info.base.writes_z && !shader->info.base.writes_stencil) {
if (key->alpha.enabled ||
key->blend.alpha_to_coverage ||
shader->info.base.uses_kill) {
@@ -329,11 +330,14 @@ generate_fs_loop(struct gallivm_state *gallivm,
depth_mode = 0;
}
+ vec_type = lp_build_vec_type(gallivm, type);
+ int_vec_type = lp_build_vec_type(gallivm, int_type);
stencil_refs[0] = lp_jit_context_stencil_ref_front_value(gallivm, context_ptr);
stencil_refs[1] = lp_jit_context_stencil_ref_back_value(gallivm, context_ptr);
-
- vec_type = lp_build_vec_type(gallivm, type);
+ /* convert scalar stencil refs into vectors */
+ stencil_refs[0] = lp_build_broadcast(gallivm, int_vec_type, stencil_refs[0]);
+ stencil_refs[1] = lp_build_broadcast(gallivm, int_vec_type, stencil_refs[1]);
consts_ptr = lp_jit_context_constants(gallivm, context_ptr);
num_consts_ptr = lp_jit_context_num_constants(gallivm, context_ptr);
@@ -462,7 +466,9 @@ generate_fs_loop(struct gallivm_state *gallivm,
int pos0 = find_output_by_semantic(&shader->info.base,
TGSI_SEMANTIC_POSITION,
0);
-
+ int s_out = find_output_by_semantic(&shader->info.base,
+ TGSI_SEMANTIC_STENCIL,
+ 0);
if (pos0 != -1 && outputs[pos0][2]) {
z = LLVMBuildLoad(builder, outputs[pos0][2], "output.z");
@@ -512,6 +518,15 @@ generate_fs_loop(struct gallivm_state *gallivm,
}
}
+ if (s_out != -1 && outputs[s_out][1]) {
+ /* there's only one value, and spec says to discard additional bits */
+ LLVMValueRef s_max_mask = lp_build_const_int_vec(gallivm, int_type, 255);
+ stencil_refs[0] = LLVMBuildLoad(builder, outputs[s_out][1], "output.s");
+ stencil_refs[0] = LLVMBuildBitCast(builder, stencil_refs[0], int_vec_type, "");
+ stencil_refs[0] = LLVMBuildAnd(builder, stencil_refs[0], s_max_mask, "");
+ stencil_refs[1] = stencil_refs[0];
+ }
+
lp_build_depth_stencil_load_swizzled(gallivm, type,
zs_format_desc, key->resource_1d,
depth_ptr, depth_stride,
diff --git a/src/gallium/drivers/llvmpipe/lp_surface.c b/src/gallium/drivers/llvmpipe/lp_surface.c
index 08f968f7f0a..b985877e43e 100644
--- a/src/gallium/drivers/llvmpipe/lp_surface.c
+++ b/src/gallium/drivers/llvmpipe/lp_surface.c
@@ -139,11 +139,6 @@ static void lp_blit(struct pipe_context *pipe,
return; /* done */
}
- if (info.mask & PIPE_MASK_S) {
- debug_printf("llvmpipe: cannot blit stencil, skipping\n");
- info.mask &= ~PIPE_MASK_S;
- }
-
if (!util_blitter_is_blit_supported(lp->blitter, &info)) {
debug_printf("llvmpipe: blit unsupported %s -> %s\n",
util_format_short_name(info.src.resource->format),