LLVMBuilderRef builder = ctx->builder;
LLVMValueRef tmp = LLVMBuildZExt(builder, prim->isnull, ctx->i32, "");
LLVMValueRef result = LLVMBuildShl(builder, tmp, LLVMConstInt(ctx->i32, 31, false), "");
+ result = LLVMBuildOr(ctx->builder, result, prim->edgeflags, "");
for (unsigned i = 0; i < prim->num_vertices; ++i) {
tmp = LLVMBuildShl(builder, prim->index[i], LLVMConstInt(ctx->i32, 10 * i, false), "");
result = LLVMBuildOr(builder, result, tmp, "");
- tmp = LLVMBuildZExt(builder, prim->edgeflag[i], ctx->i32, "");
- tmp = LLVMBuildShl(builder, tmp, LLVMConstInt(ctx->i32, 10 * i + 9, false), "");
- result = LLVMBuildOr(builder, result, tmp, "");
}
return result;
}
} else {
prim.num_vertices = num_vertices;
prim.isnull = ctx->ac.i1false;
+ prim.edgeflags = ac_pack_edgeflags_for_export(&ctx->ac, &ctx->args->ac);
memcpy(prim.index, vtxindex, sizeof(vtxindex[0]) * 3);
-
- for (unsigned i = 0; i < num_vertices; ++i) {
- tmp = LLVMBuildLShr(builder, ac_get_arg(&ctx->ac, ctx->args->ac.gs_invocation_id),
- LLVMConstInt(ctx->ac.i32, 8 + i, false), "");
- prim.edgeflag[i] = LLVMBuildTrunc(builder, tmp, ctx->ac.i1, "");
- }
}
ac_build_export_prim(&ctx->ac, &prim);
tmp = ngg_gs_vertex_ptr(ctx, tid);
flags = LLVMBuildLoad(builder, ngg_gs_get_emit_primflag_ptr(ctx, tmp, 0), "");
prim.isnull = LLVMBuildNot(builder, LLVMBuildTrunc(builder, flags, ctx->ac.i1, ""), "");
+ prim.edgeflags = ctx->ac.i32_0;
for (unsigned i = 0; i < verts_per_prim; ++i) {
prim.index[i] = LLVMBuildSub(builder, vertlive_scan.result_exclusive,
LLVMConstInt(ctx->ac.i32, verts_per_prim - i - 1, false), "");
- prim.edgeflag[i] = ctx->ac.i1false;
}
/* Geometry shaders output triangle strips, but NGG expects triangles. */
LLVMConstInt(ctx->ac.i32, GFX10_GS_QUERY_BUF, false));
}
-static LLVMValueRef ngg_get_initial_edgeflag(struct si_shader_context *ctx, unsigned index)
-{
- if (ctx->stage == MESA_SHADER_VERTEX) {
- LLVMValueRef tmp;
- tmp = LLVMBuildLShr(ctx->ac.builder, ac_get_arg(&ctx->ac, ctx->args.gs_invocation_id),
- LLVMConstInt(ctx->ac.i32, 8 + index, false), "");
- return LLVMBuildTrunc(ctx->ac.builder, tmp, ctx->ac.i1, "");
- }
- return ctx->ac.i1false;
-}
-
/**
* Return the number of vertices as a constant in \p num_vertices,
* and return a more precise value as LLVMValueRef from the function.
ngg_get_vertices_per_prim(ctx, &prim.num_vertices);
prim.isnull = ctx->ac.i1false;
+ prim.edgeflags = ac_pack_edgeflags_for_export(&ctx->ac, &ctx->args);
+
for (unsigned i = 0; i < 3; ++i)
prim.index[i] = si_unpack_param(ctx, ctx->args.gs_vtx_offset[i / 2], (i & 1) * 16, 16);
- for (unsigned i = 0; i < prim.num_vertices; ++i) {
- prim.edgeflag[i] = ngg_get_initial_edgeflag(ctx, i);
+ if (ctx->shader->selector->info.writes_edgeflag) {
+ LLVMValueRef edgeflags = ctx->ac.i32_0;
- if (ctx->shader->selector->info.writes_edgeflag) {
+ for (unsigned i = 0; i < prim.num_vertices; ++i) {
LLVMValueRef edge;
edge = LLVMBuildLoad(ctx->ac.builder, user_edgeflags[i], "");
- edge = LLVMBuildAnd(ctx->ac.builder, prim.edgeflag[i], edge, "");
- prim.edgeflag[i] = edge;
+ edge = LLVMBuildZExt(ctx->ac.builder, edge, ctx->ac.i32, "");
+ edge = LLVMBuildShl(ctx->ac.builder, edge, LLVMConstInt(ctx->ac.i32, 9 + i*10, 0), "");
+ edgeflags = LLVMBuildOr(ctx->ac.builder, edgeflags, edge, "");
}
+ prim.edgeflags = LLVMBuildAnd(ctx->ac.builder, prim.edgeflags, edgeflags, "");
}
ac_build_export_prim(&ctx->ac, &prim);
struct ac_ngg_prim prim = {};
prim.num_vertices = 3;
prim.isnull = ctx->ac.i1false;
+ prim.edgeflags = ac_pack_edgeflags_for_export(&ctx->ac, &ctx->args);
for (unsigned vtx = 0; vtx < 3; vtx++) {
prim.index[vtx] = LLVMBuildLoad(
builder, si_build_gep_i8(ctx, gs_vtxptr[vtx], lds_byte1_new_thread_id), "");
prim.index[vtx] = LLVMBuildZExt(builder, prim.index[vtx], ctx->ac.i32, "");
- prim.edgeflag[vtx] = ngg_get_initial_edgeflag(ctx, vtx);
}
/* Set the new GS input VGPR. */
tmp = ngg_gs_vertex_ptr(ctx, tid);
flags = LLVMBuildLoad(builder, ngg_gs_get_emit_primflag_ptr(ctx, tmp, 0), "");
prim.isnull = LLVMBuildNot(builder, LLVMBuildTrunc(builder, flags, ctx->ac.i1, ""), "");
+ prim.edgeflags = ctx->ac.i32_0;
for (unsigned i = 0; i < verts_per_prim; ++i) {
prim.index[i] = LLVMBuildSub(builder, vertlive_scan.result_exclusive,
LLVMConstInt(ctx->ac.i32, verts_per_prim - i - 1, false), "");
- prim.edgeflag[i] = ctx->ac.i1false;
}
/* Geometry shaders output triangle strips, but NGG expects triangles. */