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94 lines
2.7 KiB
94 lines
2.7 KiB
/** |
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* \file drm_sarea.h |
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* \brief SAREA definitions |
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* |
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* \author Michel Dänzer <[email protected]> |
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*/ |
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/* |
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* Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas. |
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* All Rights Reserved. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice (including the next |
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* paragraph) shall be included in all copies or substantial portions of the |
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* Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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*/ |
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#ifndef _DRM_SAREA_H_ |
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#define _DRM_SAREA_H_ |
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#include "drm.h" |
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#if defined(__cplusplus) |
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extern "C" { |
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#endif |
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/* SAREA area needs to be at least a page */ |
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#if defined(__alpha__) |
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#define SAREA_MAX 0x2000U |
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#elif defined(__mips__) |
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#define SAREA_MAX 0x4000U |
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#elif defined(__ia64__) |
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#define SAREA_MAX 0x10000U /* 64kB */ |
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#else |
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/* Intel 830M driver needs at least 8k SAREA */ |
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#define SAREA_MAX 0x2000U |
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#endif |
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/** Maximum number of drawables in the SAREA */ |
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#define SAREA_MAX_DRAWABLES 256 |
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#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000 |
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/** SAREA drawable */ |
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struct drm_sarea_drawable { |
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unsigned int stamp; |
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unsigned int flags; |
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}; |
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/** SAREA frame */ |
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struct drm_sarea_frame { |
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unsigned int x; |
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unsigned int y; |
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unsigned int width; |
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unsigned int height; |
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unsigned int fullscreen; |
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}; |
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/** SAREA */ |
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struct drm_sarea { |
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/** first thing is always the DRM locking structure */ |
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struct drm_hw_lock lock; |
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/** \todo Use readers/writer lock for drm_sarea::drawable_lock */ |
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struct drm_hw_lock drawable_lock; |
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struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES]; /**< drawables */ |
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struct drm_sarea_frame frame; /**< frame */ |
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drm_context_t dummy_context; |
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}; |
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#ifndef __KERNEL__ |
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typedef struct drm_sarea_drawable drm_sarea_drawable_t; |
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typedef struct drm_sarea_frame drm_sarea_frame_t; |
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typedef struct drm_sarea drm_sarea_t; |
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#endif |
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#if defined(__cplusplus) |
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} |
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#endif |
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#endif /* _DRM_SAREA_H_ */
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