radeonsi: add generic emit primitive helper

This will be shared by the tgsi and nir backends.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 8e91a45..f29bd61 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -4389,18 +4389,25 @@ static void si_tgsi_emit_vertex(
 }
 
 /* Cut one primitive from the geometry shader */
-static void si_llvm_emit_primitive(
+static void si_llvm_emit_primitive(struct ac_shader_abi *abi,
+                                  unsigned stream)
+{
+       struct si_shader_context *ctx = si_shader_context_from_abi(abi);
+
+       /* Signal primitive cut */
+       ac_build_sendmsg(&ctx->ac, AC_SENDMSG_GS_OP_CUT | AC_SENDMSG_GS | (stream << 8),
+                        si_get_gs_wave_id(ctx));
+}
+
+/* Cut one primitive from the geometry shader */
+static void si_tgsi_emit_primitive(
        const struct lp_build_tgsi_action *action,
        struct lp_build_tgsi_context *bld_base,
        struct lp_build_emit_data *emit_data)
 {
        struct si_shader_context *ctx = si_shader_context(bld_base);
-       unsigned stream;
 
-       /* Signal primitive cut */
-       stream = si_llvm_get_stream(bld_base, emit_data);
-       ac_build_sendmsg(&ctx->ac, AC_SENDMSG_GS_OP_CUT | AC_SENDMSG_GS | (stream << 8),
-                        si_get_gs_wave_id(ctx));
+       si_llvm_emit_primitive(&ctx->abi, si_llvm_get_stream(bld_base, emit_data));
 }
 
 static void si_llvm_emit_barrier(const struct lp_build_tgsi_action *action,
@@ -5910,7 +5917,7 @@ static void si_init_shader_ctx(struct si_shader_context *ctx,
        bld_base->op_actions[TGSI_OPCODE_READ_INVOC].emit = read_lane_emit;
 
        bld_base->op_actions[TGSI_OPCODE_EMIT].emit = si_tgsi_emit_vertex;
-       bld_base->op_actions[TGSI_OPCODE_ENDPRIM].emit = si_llvm_emit_primitive;
+       bld_base->op_actions[TGSI_OPCODE_ENDPRIM].emit = si_tgsi_emit_primitive;
        bld_base->op_actions[TGSI_OPCODE_BARRIER].emit = si_llvm_emit_barrier;
 }