/**
* \ file drm_sarea . h
* \ brief SAREA definitions
*
* \ author Michel D ä nzer < michel @ daenzer . net >
*/
/*
* 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 .
*/
#ifndef _DRM_SAREA_H_
#define _DRM_SAREA_H_
#include "drm.h"
#if defined (__cplusplus)
extern "C" {
#endif
/* SAREA area needs to be at least a page */
#if defined (__alpha__)
#define SAREA_MAX 0 x2000U
#elif defined (__mips__)
#define SAREA_MAX 0 x4000U
#elif defined (__ia64__)
#define SAREA_MAX 0 x10000U /* 64kB */
#else
/* Intel 830M driver needs at least 8k SAREA */
#define SAREA_MAX 0 x2000U
#endif
/** Maximum number of drawables in the SAREA */
#define SAREA_MAX_DRAWABLES 256
#define SAREA_DRAWABLE_CLAIMED_ENTRY 0 x80000000
/** SAREA drawable */
struct drm_sarea_drawable {
unsigned int stamp;
unsigned int flags;
};
/** SAREA frame */
struct drm_sarea_frame {
unsigned int x;
unsigned int y;
unsigned int width;
unsigned int height;
unsigned int fullscreen;
};
/** SAREA */
struct drm_sarea {
/** first thing is always the DRM locking structure */
struct drm_hw_lock lock;
/** \todo Use readers/writer lock for drm_sarea::drawable_lock */
struct drm_hw_lock drawable_lock;
struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES]; /**< drawables */
struct drm_sarea_frame frame; /**< frame */
drm_context_t dummy_context;
};
#ifndef __KERNEL__
typedef struct drm_sarea_drawable drm_sarea_drawable_t;
typedef struct drm_sarea_frame drm_sarea_frame_t;
typedef struct drm_sarea drm_sarea_t;
#endif
#if defined (__cplusplus)
}
#endif
#endif /* _DRM_SAREA_H_ */
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