1 files changed, 109 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/renderonly/renderonly.h b/src/gallium/auxiliary/renderonly/renderonly.h
new file mode 100644
index 00000000000..28989f202d9
--- /dev/null
+++ b/src/gallium/auxiliary/renderonly/renderonly.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2016 Christian Gmeiner <[email protected]>
+ *
+ * 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
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ *    Christian Gmeiner <[email protected]>
+ */
+
+#ifndef RENDERONLY_H
+#define RENDERONLY_H
+
+#include <stdint.h>
+#include "state_tracker/drm_driver.h"
+#include "pipe/p_state.h"
+
+struct renderonly_scanout {
+   uint32_t handle;
+   uint32_t stride;
+
+   struct pipe_resource *prime;
+};
+
+struct renderonly {
+   /**
+    * Create a renderonly_scanout object for scanout resource.
+    *
+    * This function creates a renderonly_scanout object based on the provided
+    * resource. The library is designed that the driver specific pipe_resource
+    * struct holds a pointer to a renderonly_scanout struct.
+    *
+    * struct driver_resource {
+    *    struct pipe_resource base;
+    *    struct renderonly_scanout *scanout;
+    *   ...
+    * };
+    *
+    * The renderonly_scanout object exits for two reasons:
+    * - Do any special treatment for a scanout resource like importing the GPU
+    *   resource into the scanout hw.
+    * - Make it easier for a gallium driver to detect if anything special needs
+    *   to be done in flush_resource(..) like a resolve to linear.
+    */
+   struct renderonly_scanout *(*create_for_resource)(struct pipe_resource *rsc,
+                                                     struct renderonly *ro);
+   int kms_fd;
+   int gpu_fd;
+};
+
+struct renderonly *
+renderonly_dup(const struct renderonly *ro);
+
+static inline struct renderonly_scanout *
+renderonly_scanout_for_resource(struct pipe_resource *rsc, struct renderonly *ro)
+{
+   return ro->create_for_resource(rsc, ro);
+}
+
+struct renderonly_scanout *
+renderonly_scanout_for_prime(struct pipe_resource *rsc, struct renderonly *ro);
+
+void
+renderonly_scanout_destroy(struct renderonly_scanout *scanout);
+
+static inline boolean
+renderonly_get_handle(struct renderonly_scanout *scanout,
+      struct winsys_handle *handle)
+{
+   if (!scanout)
+      return FALSE;
+
+   handle->handle = scanout->handle;
+   handle->stride = scanout->stride;
+
+   return TRUE;
+}
+
+/**
+ * Create a dumb buffer object for a resource at scanout hw.
+ */
+struct renderonly_scanout *
+renderonly_create_kms_dumb_buffer_for_resource(struct pipe_resource *rsc,
+                                               struct renderonly *ro);
+
+/**
+ * Import GPU resource into scanout hw.
+ */
+struct renderonly_scanout *
+renderonly_create_gpu_import_for_resource(struct pipe_resource *rsc,
+                                          struct renderonly *ro);
+
+#endif /* RENDERONLY_H_ */