nouveau: implement is_{texture,buffer}_referenced properly

1 files changed, 41 insertions, 0 deletions

diff --git a/src/gallium/drivers/nouveau/nouveau_context.c b/src/gallium/drivers/nouveau/nouveau_context.c
new file mode 100644
index 00000000000..23443869e68
--- /dev/null
+++ b/src/gallium/drivers/nouveau/nouveau_context.c
@@ -0,0 +1,41 @@
+#include <pipe/p_defines.h>
+#include <pipe/p_context.h>
+
+#include "nouveau/nouveau_screen.h"
+#include "nouveau/nouveau_context.h"
+
+#include "nouveau/nouveau_bo.h"
+
+static unsigned int
+nouveau_reference_flags(struct nouveau_bo *bo)
+{
+	uint32_t bo_flags;
+	int flags = 0;
+
+	bo_flags = nouveau_bo_pending(bo);
+	if (bo_flags & NOUVEAU_BO_RD)
+		flags |= PIPE_REFERENCED_FOR_READ;
+	if (bo_flags & NOUVEAU_BO_WR)
+		flags |= PIPE_REFERENCED_FOR_WRITE;
+
+	return flags;
+}
+
+unsigned int
+nouveau_is_texture_referenced(struct pipe_context *pipe,
+			      struct pipe_texture *pt,
+			      unsigned face, unsigned level)
+{
+	struct nouveau_miptree *mt = nouveau_miptree(pt);
+
+	return nouveau_reference_flags(mt->bo);
+}
+
+unsigned int
+nouveau_is_buffer_referenced(struct pipe_context *pipe, struct pipe_buffer *pb)
+{
+	struct nouveau_bo *bo = nouveau_bo(pb);
+
+	return nouveau_reference_flags(bo);
+}
+