ggml: new backend for Virglrenderer API Remoting acceleration (v2) (#18718)

ggml/src/ggml-virtgpu/backend/backend-dispatched.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <cstdint>
+#include <cstddef>
+
+#include <ggml-backend.h>
+
+#include "backend-convert.h"
+#include "backend-virgl-apir.h"
+#include "shared/apir_backend.h"
+#include "shared/apir_cs.h"
+#include "shared/apir_cs_ggml.h"
+
+struct virgl_apir_context {
+    uint32_t               ctx_id;
+    virgl_apir_callbacks * iface;
+};
+
+typedef uint32_t (*backend_dispatch_t)(apir_encoder * enc, apir_decoder * dec, virgl_apir_context * ctx);
+
+#include "backend-dispatched.gen.h"
+
+uint32_t backend_dispatch_initialize(void * ggml_backend_reg_fct_p);