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/**
* \file driver.h
* \brief DRI utility functions definitions.
*
* This module acts as glue between GLX and the actual hardware driver. A DRI
* driver doesn't really \e have to use any of this - it's optional. But, some
* useful stuff is done here that otherwise would have to be duplicated in most
* drivers.
*
* Basically, these utility functions take care of some of the dirty details of
* screen initialization, context creation, context binding, DRM setup, etc.
*
* These functions are compiled into each DRI driver so libGL.so knows nothing
* about them.
*
* Look for more comments in the dri_util.c file.
*
* \author Kevin E. Martin <kevin@precisioninsight.com>
* \author Brian Paul <brian@precisioninsight.com>
*/
/*
* Copyright 1998-1999 Precision Insight, 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, 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 _driver_H_
#define _driver_H_
#define CAPI /* XXX this should be globally defined somewhere */
#include "GL/gl.h"
#include "GL/internal/glcore.h"
/**
* \brief Clip rectangle definition.
*/
typedef struct _XF86DRIClipRect {
unsigned short x1; /**< \brief Upper: inclusive */
unsigned short y1; /**< \brief Left: inclusive */
unsigned short x2; /**< \brief Lower: exclusive */
unsigned short y2; /**< \brief Right: exclusive */
} XF86DRIClipRectRec, *XF86DRIClipRectPtr;
/**
* \brief DRIDriverContext type.
*/
typedef struct DRIDriverContextRec {
const char *pciBusID;
int pciBus;
int pciDevice;
int pciFunc;
int chipset;
int bpp;
int cpp;
unsigned long FBStart; /**< \brief physical address of the framebuffer */
unsigned long MMIOStart; /**< \brief physical address of the MMIO region */
int FBSize; /**< \brief size of the mmap'd framebuffer in bytes */
int MMIOSize; /**< \brief size of the mmap'd MMIO region in bytes */
void *FBAddress; /**< \brief start of the mmap'd framebuffer */
void *MMIOAddress; /**< \brief start of the mmap'd MMIO region */
/**
* \brief Client configuration details
*
* These are computed on the server and sent to clients as part of
* the initial handshaking.
*/
struct {
unsigned long hSAREA;
int SAREASize;
unsigned long hFrameBuffer;
int fbOrigin;
int fbSize;
int fbStride;
int virtualWidth;
int virtualHeight;
} shared;
/**
* \name From DRIInfoRec
*/
/*@{*/
int drmFD; /**< \brief DRM device file descriptor */
struct _XF86DRISAREA *pSAREA;
unsigned int serverContext; /**< \brief DRM context only active on server */
/*@}*/
/**
* \name Driver private
*
* Populated by __driInitFBDev()
*/
/*@{*/
void *driverPrivate;
void *driverClientMsg;
int driverClientMsgSize;
/*@}*/
} DRIDriverContext;
/**
* \brief Interface to the DRI driver.
*
* This structure is retrieved from the loadable driver by the \e
* __driDriver symbol to access the Mini GLX specific hardware
* initialization and take down routines.
*/
typedef struct DRIDriverRec {
/**
* \brief Get the list of supported gl context modes.
*/
int (*initContextModes)( const DRIDriverContext *context,
int *numModes, const __GLcontextModes **modes );
/**
* \brief Validate the framebuffer device mode
*/
int (*validateMode)( const DRIDriverContext *context );
/**
* \brief Examine mode returned by fbdev (may differ from the one
* requested), restore any hw regs clobbered by fbdev.
*/
int (*postValidateMode)( const DRIDriverContext *context );
/**
* \brief Initialize the framebuffer device.
*/
int (*initFBDev)( DRIDriverContext *context );
/**
* \brief Halt the framebuffer device.
*/
void (*haltFBDev)( DRIDriverContext *context );
/**
* \brief Idle and shutdown hardware in preparation for a VT switch.
*/
int (*shutdownHardware)( const DRIDriverContext *context );
/**
* \brief Restore hardware state after regaining the VT.
*/
int (*restoreHardware)( const DRIDriverContext *context );
/**
* \brief Notify hardware driver of gain/loose focus. May be zero
* as this is of limited utility for most drivers.
*/
void (*notifyFocus)( int have_focus );
} DRIDriver;
#endif /* _driver_H_ */
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