summaryrefslogtreecommitdiffstats
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/draw/draw_llvm.c36
-rw-r--r--src/gallium/auxiliary/draw/draw_llvm.h6
-rw-r--r--src/gallium/auxiliary/draw/draw_private.h1
-rw-r--r--src/gallium/auxiliary/draw/draw_pt.c1
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c6
5 files changed, 37 insertions, 13 deletions
diff --git a/src/gallium/auxiliary/draw/draw_llvm.c b/src/gallium/auxiliary/draw/draw_llvm.c
index a3174b404c1..c195a2b4def 100644
--- a/src/gallium/auxiliary/draw/draw_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_llvm.c
@@ -1486,7 +1486,7 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
struct gallivm_state *gallivm = variant->gallivm;
LLVMContextRef context = gallivm->context;
LLVMTypeRef int32_type = LLVMInt32TypeInContext(context);
- LLVMTypeRef arg_types[9];
+ LLVMTypeRef arg_types[10];
unsigned num_arg_types =
elts ? Elements(arg_types) : Elements(arg_types) - 1;
LLVMTypeRef func_type;
@@ -1496,6 +1496,7 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
struct lp_type vs_type;
LLVMValueRef end, start;
LLVMValueRef count, fetch_elts, fetch_elt_max, fetch_count;
+ LLVMValueRef vertex_id_offset;
LLVMValueRef stride, step, io_itr;
LLVMValueRef io_ptr, vbuffers_ptr, vb_ptr;
LLVMValueRef zero = lp_build_const_int32(gallivm, 0);
@@ -1541,6 +1542,7 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
arg_types[i++] = int32_type; /* stride */
arg_types[i++] = get_vb_ptr_type(variant); /* pipe_vertex_buffer's */
arg_types[i++] = int32_type; /* instance_id */
+ arg_types[i++] = int32_type; /* vertex_id_offset */
func_type = LLVMFunctionType(int32_type, arg_types, num_arg_types, 0);
@@ -1565,6 +1567,7 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
stride = LLVMGetParam(variant_func, 5 + (elts ? 1 : 0));
vb_ptr = LLVMGetParam(variant_func, 6 + (elts ? 1 : 0));
system_values.instance_id = LLVMGetParam(variant_func, 7 + (elts ? 1 : 0));
+ vertex_id_offset = LLVMGetParam(variant_func, 8 + (elts ? 1 : 0));
lp_build_name(context_ptr, "context");
lp_build_name(io_ptr, "io");
@@ -1572,6 +1575,7 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
lp_build_name(stride, "stride");
lp_build_name(vb_ptr, "vb");
lp_build_name(system_values.instance_id, "instance_id");
+ lp_build_name(vertex_id_offset, "vertex_id_offset");
if (elts) {
fetch_elts = LLVMGetParam(variant_func, 3);
@@ -1646,22 +1650,19 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
#endif
system_values.vertex_id = lp_build_zero(gallivm, lp_type_uint_vec(32, 32*vector_length));
for (i = 0; i < vector_length; ++i) {
- LLVMValueRef true_index =
+ LLVMValueRef vert_index =
LLVMBuildAdd(builder,
lp_loop.counter,
lp_build_const_int32(gallivm, i), "");
- true_index = LLVMBuildAdd(builder, start, true_index, "");
+ LLVMValueRef true_index =
+ LLVMBuildAdd(builder, start, vert_index, "");
+ LLVMValueRef vertex_id;
/* make sure we're not out of bounds which can happen
* if fetch_count % 4 != 0, because on the last iteration
* a few of the 4 vertex fetches will be out of bounds */
true_index = lp_build_min(&bld, true_index, fetch_max);
- system_values.vertex_id = LLVMBuildInsertElement(
- gallivm->builder,
- system_values.vertex_id, true_index,
- lp_build_const_int32(gallivm, i), "");
-
if (elts) {
LLVMValueRef fetch_ptr;
LLVMValueRef index_overflowed;
@@ -1673,7 +1674,7 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
index_overflowed = LLVMBuildICmp(builder, LLVMIntUGT,
true_index, fetch_elt_max,
"index_overflowed");
-
+
lp_build_if(&if_ctx, gallivm, index_overflowed);
{
/* Generate maximum possible index so that
@@ -1698,6 +1699,23 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
lp_build_endif(&if_ctx);
true_index = LLVMBuildLoad(builder, index_ptr, "true_index");
}
+ /* in the paths with elts vertex id has to be unaffected by the
+ * index bias and because indices inside our elements array have
+ * already had index bias applied we need to subtract it here to
+ * get back to the original index.
+ * in the linear paths vertex id has to be unaffected by the
+ * original start index and because we abuse the 'start' variable
+ * to either represent the actual start index or the index at which
+ * the primitive was split (we split rendering into chunks of at
+ * most 4095-vertices) we need to back out the original start
+ * index out of our vertex id here.
+ */
+ vertex_id = LLVMBuildSub(builder, true_index, vertex_id_offset, "");
+
+ system_values.vertex_id = LLVMBuildInsertElement(
+ gallivm->builder,
+ system_values.vertex_id, vertex_id,
+ lp_build_const_int32(gallivm, i), "");
for (j = 0; j < draw->pt.nr_vertex_elements; ++j) {
struct pipe_vertex_element *velem = &draw->pt.vertex_element[j];
diff --git a/src/gallium/auxiliary/draw/draw_llvm.h b/src/gallium/auxiliary/draw/draw_llvm.h
index 347fde2b55f..0675e3bf17b 100644
--- a/src/gallium/auxiliary/draw/draw_llvm.h
+++ b/src/gallium/auxiliary/draw/draw_llvm.h
@@ -263,7 +263,8 @@ typedef int
unsigned count,
unsigned stride,
struct pipe_vertex_buffer *vertex_buffers,
- unsigned instance_id);
+ unsigned instance_id,
+ unsigned vertex_id_offset);
typedef int
@@ -275,7 +276,8 @@ typedef int
unsigned fetch_count,
unsigned stride,
struct pipe_vertex_buffer *vertex_buffers,
- unsigned instance_id);
+ unsigned instance_id,
+ unsigned vertex_id_offset);
typedef int
diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h
index d8cd8ebdb64..868b6c78954 100644
--- a/src/gallium/auxiliary/draw/draw_private.h
+++ b/src/gallium/auxiliary/draw/draw_private.h
@@ -311,6 +311,7 @@ struct draw_context
unsigned instance_id;
unsigned start_instance;
+ unsigned start_index;
#ifdef HAVE_LLVM
struct draw_llvm *llvm;
diff --git a/src/gallium/auxiliary/draw/draw_pt.c b/src/gallium/auxiliary/draw/draw_pt.c
index fcc24057db0..5b16bc72ef4 100644
--- a/src/gallium/auxiliary/draw/draw_pt.c
+++ b/src/gallium/auxiliary/draw/draw_pt.c
@@ -535,6 +535,7 @@ draw_vbo(struct draw_context *draw,
}
draw->pt.max_index = index_limit - 1;
+ draw->start_index = info->start;
/*
* TODO: We could use draw->pt.max_index to further narrow
diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
index 2e47fad551a..17b948a7652 100644
--- a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
@@ -353,7 +353,8 @@ llvm_pipeline_generic( struct draw_pt_middle_end *middle,
fetch_info->count,
fpme->vertex_size,
draw->pt.vertex_buffer,
- draw->instance_id);
+ draw->instance_id,
+ draw->start_index);
else
clipped = fpme->current_variant->jit_func_elts( &fpme->llvm->jit_context,
llvm_vert_info.verts,
@@ -363,7 +364,8 @@ llvm_pipeline_generic( struct draw_pt_middle_end *middle,
fetch_info->count,
fpme->vertex_size,
draw->pt.vertex_buffer,
- draw->instance_id);
+ draw->instance_id,
+ draw->pt.user.eltBias);
/* Finished with fetch and vs:
*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 06:51:23 +0000