swapswap

4 files changed, 69 insertions, 1 deletions

diff --git a/src/virglrenderer.c b/src/virglrenderer.c
index ea382db..08ade1f 100644
--- a/src/virglrenderer.c
+++ b/src/virglrenderer.c
@@ -169,6 +169,11 @@ int virgl_renderer_resource_get_info(int res_handle,
    return ret;
 }
 
+int virgl_renderer_resource_swap(int res_handle)
+{
+   return vrend_renderer_resource_swap(res_handle);
+}
+
 void virgl_renderer_get_cap_set(uint32_t cap_set, uint32_t *max_ver,
                                 uint32_t *max_size)
 {
diff --git a/src/virglrenderer.h b/src/virglrenderer.h
index 8794dd6..4508789 100644
--- a/src/virglrenderer.h
+++ b/src/virglrenderer.h
@@ -163,4 +163,7 @@ VIRGL_EXPORT void virgl_renderer_cleanup(void *cookie);
 
 /* reset the rendererer - destroy all contexts and resource */
 VIRGL_EXPORT void virgl_renderer_reset(void);
+
+VIRGL_EXPORT int virgl_renderer_resource_swap(int res_handle);
+
 #endif
diff --git a/src/vrend_renderer.c b/src/vrend_renderer.c
index 0525acd..6ba3d31 100644
--- a/src/vrend_renderer.c
+++ b/src/vrend_renderer.c
@@ -3742,7 +3742,10 @@ static int check_resource_valid(struct vrend_renderer_resource_create_args *args
    }
    return 0;
 }
-int vrend_renderer_resource_create(struct vrend_renderer_resource_create_args *args, struct iovec *iov, uint32_t num_iovs)
+
+int vrend_resource_create(struct vrend_renderer_resource_create_args *args,
+                          struct iovec *iov, uint32_t num_iovs,
+                          struct vrend_resource **res)
 {
    struct vrend_resource *gr;
    int level;
@@ -3887,11 +3890,26 @@ int vrend_renderer_resource_create(struct vrend_renderer_resource_create_args *a
       gt->cur_swizzle_r = gt->cur_swizzle_g = gt->cur_swizzle_b = gt->cur_swizzle_a = -1;
    }
 
+   *res = gr;
+
+   return 0;
+}
+
+int vrend_renderer_resource_create(struct vrend_renderer_resource_create_args *args, struct iovec *iov, uint32_t num_iovs)
+{
+   struct vrend_resource *gr = NULL;
+   int ret;
+
+   ret = vrend_resource_create(args, iov, num_iovs, &gr);
+   if (ret)
+      return ret;
+
    ret = vrend_resource_insert(gr, sizeof(*gr), args->handle);
    if (ret == 0) {
       vrend_renderer_resource_destroy(gr, true);
       return ENOMEM;
    }
+
    return 0;
 }
 
@@ -5871,6 +5889,46 @@ int vrend_renderer_resource_get_info(int res_handle,
    return 0;
 }
 
+int vrend_renderer_resource_swap(int res_handle)
+{
+   struct vrend_resource *res, *gr = NULL;
+   struct vrend_renderer_resource_create_args args = { 0, };
+   struct iovec *iov;
+   uint32_t num_iovs;
+   int ret;
+
+   res = vrend_resource_lookup(res_handle, 0);
+   if (!res)
+      return EINVAL;
+
+   if (res->target != GL_TEXTURE_2D)
+      return EINVAL;
+
+   args.handle = res->handle;
+   args.target = PIPE_TEXTURE_2D;
+   args.format = res->base.format;
+   args.width = res->base.width0;
+   args.height = res->base.height0;
+   args.depth = res->base.depth0;
+   args.array_size = res->base.array_size;
+   args.last_level = res->base.last_level;
+   args.nr_samples = res->base.nr_samples;
+   args.bind = VREND_RES_BIND_SAMPLER_VIEW;
+   iov = res->iov;
+   num_iovs = res->num_iovs;
+   if (res->y_0_top)
+      args.flags |= VIRGL_RESOURCE_Y_0_TOP;
+
+   ret = vrend_resource_create(&args, iov, num_iovs, &gr);
+   if (ret)
+      return ret;
+
+   res->id = gr->id;
+   FREE(gr);
+
+   return 0;
+}
+
 void vrend_renderer_get_cap_set(uint32_t cap_set, uint32_t *max_ver,
                                 uint32_t *max_size)
 {
diff --git a/src/vrend_renderer.h b/src/vrend_renderer.h
index ee26993..4172c4e 100644
--- a/src/vrend_renderer.h
+++ b/src/vrend_renderer.h
@@ -348,6 +348,8 @@ struct vrend_renderer_resource_info {
 int vrend_renderer_resource_get_info(int res_handle,
                                      struct vrend_renderer_resource_info *info);
 
+int vrend_renderer_resource_swap(int res_handle);
+
 #define VREND_CAP_SET 1
 
 void vrend_renderer_get_cap_set(uint32_t cap_set, uint32_t *max_ver,