diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2003-08-22 20:11:43 +0000 |
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committer | Brian Paul <brian.paul@tungstengraphics.com> | 2003-08-22 20:11:43 +0000 |
commit | 5df82c82bd53db90eb72c5aad4dd20cf6f1116b1 (patch) | |
tree | f04fc69df71104df2a4cec03346abc3d4c3f4bbb /src/glx/mini/sarea.h | |
parent | 1a84876d7907df90add3f59d3396ce0bbb905040 (diff) |
patch to import Jon Smirl's work from Bitkeeper
Diffstat (limited to 'src/glx/mini/sarea.h')
-rw-r--r-- | src/glx/mini/sarea.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/glx/mini/sarea.h b/src/glx/mini/sarea.h new file mode 100644 index 0000000000..47545e10e9 --- /dev/null +++ b/src/glx/mini/sarea.h @@ -0,0 +1,96 @@ +/** + * \file sarea.h + * \brief SAREA definitions. + * + * The SAREA is a memory region is shared by the DRM device, the X server and + * the clients. + * + * This file defines its layout in user space. + * + * \author Kevin E. Martin <kevin@precisioninsight.com> + * \author Jens Owen <jens@tungstengraphics.com> + * \author Rickard E. (Rik) Faith <faith@valinux.com> + */ + +/* + * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc. + * 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, 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 PRECISION INSIGHT 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. + */ + +#ifndef _SAREA_H_ +#define _SAREA_H_ + +#include "xf86drm.h" + +/* SAREA area needs to be at least a page */ +#if defined(__alpha__) +#define SAREA_MAX 0x2000 +#elif defined(__ia64__) +#define SAREA_MAX 0x10000 /* 64kB */ +#else +/* Intel 830M driver needs at least 8k SAREA */ +#define SAREA_MAX 0x2000 +#endif + +#define SAREA_MAX_DRAWABLES 256 + +#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000 + +/** + * \brief SAREA per drawable information. + * + * \sa _XF86DRISAREA. + */ +typedef struct _XF86DRISAREADrawable { + unsigned int stamp; + unsigned int flags; +} XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr; + +/** + * \brief SAREA frame information. + * + * \sa _XF86DRISAREA. + */ +typedef struct _XF86DRISAREAFrame { + unsigned int x; + unsigned int y; + unsigned int width; + unsigned int height; + unsigned int fullscreen; +} XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr; + +/** + * \brief SAREA definition. + */ +typedef struct _XF86DRISAREA { + /** first thing is always the DRM locking structure */ + drmLock lock; + /** \todo Use readers/writer lock for drawable_lock */ + drmLock drawable_lock; + XF86DRISAREADrawableRec drawableTable[SAREA_MAX_DRAWABLES]; + XF86DRISAREAFrameRec frame; + drmContext dummy_context; +} XF86DRISAREARec, *XF86DRISAREAPtr; + +#endif |