1 files changed, 89 insertions, 0 deletions
diff --git a/src/gallium/drivers/virgl/virgl_resource.c b/src/gallium/drivers/virgl/virgl_resource.c
new file mode 100644
index 00000000000..758dd6b3e4b
--- /dev/null
+++ b/src/gallium/drivers/virgl/virgl_resource.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2014, 2015 Red Hat.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "util/u_inlines.h"
+#include "virgl_resource.h"
+#include "virgl_context.h"
+
+bool virgl_res_needs_flush_wait(struct virgl_context *vctx,
+                                struct virgl_resource *res,
+                                unsigned usage)
+{
+   struct virgl_screen *vs = virgl_screen(vctx->base.screen);
+
+   if ((!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) && vs->vws->res_is_referenced(vs->vws, vctx->cbuf, res->hw_res)) {
+      return true;
+   }
+   return false;
+}
+
+bool virgl_res_needs_readback(struct virgl_context *vctx,
+                              struct virgl_resource *res,
+                              unsigned usage)
+{
+   bool readback = true;
+   if (res->clean)
+      readback = false;
+   else if (usage & PIPE_TRANSFER_DISCARD_RANGE)
+      readback = false;
+   else if ((usage & (PIPE_TRANSFER_WRITE | PIPE_TRANSFER_FLUSH_EXPLICIT)) ==
+            (PIPE_TRANSFER_WRITE | PIPE_TRANSFER_FLUSH_EXPLICIT))
+      readback = false;
+   return readback;
+}
+
+static struct pipe_resource *virgl_resource_create(struct pipe_screen *screen,
+                                                   const struct pipe_resource *templ)
+{
+    struct virgl_screen *vs = (struct virgl_screen *)screen;
+    if (templ->target == PIPE_BUFFER)
+        return virgl_buffer_create(vs, templ);
+    else
+        return virgl_texture_create(vs, templ);
+}
+
+static struct pipe_resource *virgl_resource_from_handle(struct pipe_screen *screen,
+                                                        const struct pipe_resource *templ,
+                                                        struct winsys_handle *whandle)
+{
+    struct virgl_screen *vs = (struct virgl_screen *)screen;
+    if (templ->target == PIPE_BUFFER)
+        return NULL;
+    else
+        return virgl_texture_from_handle(vs, templ, whandle);
+}
+
+void virgl_init_screen_resource_functions(struct pipe_screen *screen)
+{
+    screen->resource_create = virgl_resource_create;
+    screen->resource_from_handle = virgl_resource_from_handle;
+    screen->resource_get_handle = u_resource_get_handle_vtbl;
+    screen->resource_destroy = u_resource_destroy_vtbl;
+}
+
+void virgl_init_context_resource_functions(struct pipe_context *ctx)
+{
+    ctx->transfer_map = u_transfer_map_vtbl;
+    ctx->transfer_flush_region = u_transfer_flush_region_vtbl;
+    ctx->transfer_unmap = u_transfer_unmap_vtbl;
+    ctx->transfer_inline_write = u_transfer_inline_write_vtbl;
+}