preserve CRTC{,2}_OFFSET_CNTL in 2D driver to avoid bad effects when

    pageflipping after a mode switch
take current page into account in AdjustFrame(); writing the CRTC offset
    via the CP was probably a bad idea as this can happen asynchronously,
    reverted
take frame offset into account when flipping pages
handle CRTC2 as well for pageflipping (untested)
preserve GEN_INT_CNTL on mode switches to prevent interrupts from getting
    disabled

1 files changed, 57 insertions, 0 deletions

diff --git a/shared-core/drm_sarea.h b/shared-core/drm_sarea.h
new file mode 100644
index 00000000..cee48eee
--- /dev/null
+++ b/shared-core/drm_sarea.h
@@ -0,0 +1,57 @@
+/* sarea.h -- SAREA definitions -*- linux-c -*-
+ *
+ * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * 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
+ * TUNGSTEN GRAPHICS AND/OR ITS 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.
+ *
+ * Authors:
+ *    Michel Dänzer <michel@daenzer.net>
+ */
+
+#ifndef _DRM_SAREA_H_
+#define _DRM_SAREA_H_
+
+#define SAREA_MAX_DRAWABLES 		256
+
+typedef struct _drm_sarea_drawable_t {
+    unsigned int	stamp;
+    unsigned int	flags;
+} drm_sarea_drawable_t;
+
+typedef struct _dri_sarea_frame_t {
+    unsigned int        x;
+    unsigned int        y;
+    unsigned int        width;
+    unsigned int        height;
+    unsigned int        fullscreen;
+} drm_sarea_frame_t;
+
+typedef struct _drm_sarea_t {
+    /* first thing is always the drm locking structure */
+    drm_hw_lock_t		lock;
+		/* NOT_DONE: Use readers/writer lock for drawable_lock */
+    drm_hw_lock_t		drawable_lock;
+    drm_sarea_drawable_t	drawableTable[SAREA_MAX_DRAWABLES];
+    drm_sarea_frame_t		frame;
+    drm_context_t		dummy_context;
+} drm_sarea_t;
+
+#endif	/* _DRM_SAREA_H_ */