vkr: add experimental venus renderer

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>

src/meson.build

@@ -75,9 +75,12 @@ vrend_winsys_glx_sources = [
 ]
 
 venus_sources = [
+   'venus-protocol/vn_protocol_renderer.h',
    'vkr_cs.c',
    'vkr_cs.h',
    'vkr_object.h',
+   'vkr_renderer.c',
+   'vkr_renderer.h',
    'vkr_ring.c',
    'vkr_ring.h',
 ]

src/vkr_renderer.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2020 Google LLC
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef VKR_RENDERER_H
+#define VKR_RENDERER_H
+
+#include "config.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "os/os_misc.h"
+
+#define VKR_RENDERER_THREAD_SYNC               (1u << 0)
+#define VKR_RENDERER_MULTI_PROCESS             (1u << 1)
+
+struct virgl_context;
+
+#ifdef ENABLE_VENUS
+
+int
+vkr_renderer_init(uint32_t flags);
+
+void
+vkr_renderer_fini(void);
+
+void
+vkr_renderer_reset(void);
+
+size_t
+vkr_get_capset(void *capset);
+
+struct virgl_context *
+vkr_context_create(size_t debug_len, const char *debug_name);
+
+#else /* ENABLE_VENUS */
+
+#include <stdio.h>
+
+static inline int
+vkr_renderer_init(UNUSED uint32_t flags)
+{
+   fprintf(stderr, "Vulkan support was not enabled in virglrenderer\n");
+   return -1;
+}
+
+static inline void
+vkr_renderer_fini(void)
+{
+}
+
+static inline void
+vkr_renderer_reset(void)
+{
+}
+
+static inline size_t
+vkr_get_capset(UNUSED void *capset)
+{
+   return 0;
+}
+
+static inline struct virgl_context *
+vkr_context_create(UNUSED size_t debug_len,
+                   UNUSED const char *debug_name)
+{
+   return NULL;
+}
+
+#endif /* ENABLE_VENUS */
+
+#endif /* VKR_RENDERER_H */