1 /** 2 * \file sarea.h 3 * SAREA definitions. 4 * 5 * \author Kevin E. Martin <kevin@precisioninsight.com> 6 * \author Jens Owen <jens@tungstengraphics.com> 7 * \author Rickard E. (Rik) Faith <faith@valinux.com> 8 */ 9 10 /* 11 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. 12 * Copyright 2000 VA Linux Systems, Inc. 13 * All Rights Reserved. 14 * 15 * Permission is hereby granted, free of charge, to any person obtaining a 16 * copy of this software and associated documentation files (the 17 * "Software"), to deal in the Software without restriction, including 18 * without limitation the rights to use, copy, modify, merge, publish, 19 * distribute, sub license, and/or sell copies of the Software, and to 20 * permit persons to whom the Software is furnished to do so, subject to 21 * the following conditions: 22 * 23 * The above copyright notice and this permission notice (including the 24 * next paragraph) shall be included in all copies or substantial portions 25 * of the Software. 26 * 27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 28 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 30 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR 31 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 32 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 33 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 34 */ 35 36 #ifndef _SAREA_H_ 37 #define _SAREA_H_ 38 39 #include "xf86drm.h" 40 41 /* SAREA area needs to be at least a page */ 42 #if defined(__alpha__) 43 #define SAREA_MAX 0x2000 44 #elif defined(__ia64__) 45 #define SAREA_MAX 0x10000 /* 64kB */ 46 #else 47 /* Intel 830M driver needs at least 8k SAREA */ 48 #define SAREA_MAX 0x2000 49 #endif 50 51 #define SAREA_MAX_DRAWABLES 256 52 53 #define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000 54 55 /** 56 * SAREA per drawable information. 57 * 58 * \sa _XF86DRISAREA. 59 */ 60 typedef struct _XF86DRISAREADrawable { 61 unsigned int stamp; 62 unsigned int flags; 63 } XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr; 64 65 /** 66 * SAREA frame information. 67 * 68 * \sa _XF86DRISAREA. 69 */ 70 typedef struct _XF86DRISAREAFrame { 71 unsigned int x; 72 unsigned int y; 73 unsigned int width; 74 unsigned int height; 75 unsigned int fullscreen; 76 } XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr; 77 78 /** 79 * SAREA definition. 80 */ 81 typedef struct _XF86DRISAREA { 82 /** first thing is always the DRM locking structure */ 83 drmLock lock; 84 /** \todo Use readers/writer lock for drawable_lock */ 85 drmLock drawable_lock; 86 XF86DRISAREADrawableRec drawableTable[SAREA_MAX_DRAWABLES]; 87 XF86DRISAREAFrameRec frame; 88 drm_context_t dummy_context; 89 } XF86DRISAREARec, *XF86DRISAREAPtr; 90 91 typedef struct _XF86DRILSAREA { 92 drmLock lock; 93 drmLock otherLocks[31]; 94 } XF86DRILSAREARec, *XF86DRILSAREAPtr; 95 96 #endif 97