st/egl: Add helper functions for use by backends.

There is only resource_surface for now.  It helps manage the resources
of a software-based native surface such as XImage or GDI.

1 files changed, 70 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/egl/common/native_helper.h b/src/gallium/state_trackers/egl/common/native_helper.h
new file mode 100644
index 0000000000..62956d5220
--- /dev/null
+++ b/src/gallium/state_trackers/egl/common/native_helper.h
@@ -0,0 +1,70 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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 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:
+ *    Chia-I Wu <olv@lunarg.com>
+ */
+
+#include "native.h"
+
+struct resource_surface;
+
+struct resource_surface *
+resource_surface_create(struct pipe_screen *screen,
+                        enum pipe_format format, uint bind);
+
+void
+resource_surface_destroy(struct resource_surface *rsurf);
+
+boolean
+resource_surface_set_size(struct resource_surface *rsurf,
+                          uint width, uint height);
+
+void
+resource_surface_get_size(struct resource_surface *rsurf,
+                          uint *width, uint *height);
+
+boolean
+resource_surface_add_resources(struct resource_surface *rsurf,
+                               uint resource_mask);
+
+void
+resource_surface_get_resources(struct resource_surface *rsurf,
+                               struct pipe_resource **resources,
+                               uint resource_mask);
+
+struct pipe_resource *
+resource_surface_get_single_resource(struct resource_surface *rsurf,
+                                     enum native_attachment which);
+
+void
+resource_surface_swap_buffers(struct resource_surface *rsurf,
+                              enum native_attachment buf1,
+                              enum native_attachment buf2,
+                              boolean only_if_exist);
+
+boolean
+resource_surface_present(struct resource_surface *rsurf,
+                         enum native_attachment which,
+                         void *winsys_drawable_handle);