asdk-libdrm

/**************************************************************************

 * 

 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, TX., USA

 * 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 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

 * THE COPYRIGHT HOLDERS, AUTHORS 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.

 *

 * The above copyright notice and this permission notice (including the

 * next paragraph) shall be included in all copies or substantial portions

 * of the Software.

 * 

 * 

 **************************************************************************/

/*

 * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>

 */

​

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

​

#include <X11/Xlib.h>

#include <X11/Xutil.h>

#include <stdint.h>

#include <drm/drm.h>

#include "xf86dri.h"

#include "xf86drm.h"

#include "stdio.h"

#include "sys/types.h"

#include <unistd.h>

#include <string.h>

#include <errno.h>

#include <stdlib.h>

#include "sys/mman.h"

​

typedef struct

{

    enum

    {

    haveNothing,

    haveDisplay,

    haveConnection,

    haveDriverName,

    haveDeviceInfo,

    haveDRM,

    haveContext

    }

    state;

​

    Display *display;

    int screen;

    drm_handle_t sAreaOffset;

    char *curBusID;

    char *driverName;

    int drmFD;

    XVisualInfo visualInfo;

    XID id;

    drm_context_t hwContext;

    void *driPriv;

    int driPrivSize;

    int fbSize;

    int fbOrigin;

    int fbStride;

    drm_handle_t fbHandle;

    int ddxDriverMajor;

    int ddxDriverMinor;

    int ddxDriverPatch;

} TinyDRIContext;

​

#ifndef __x86_64__

static unsigned

fastrdtsc(void)

{

    unsigned eax;

    __asm__ volatile ("\t"

    "pushl  %%ebx\n\t"

    "cpuid\n\t" ".byte 0x0f, 0x31\n\t" "popl %%ebx\n":"=a" (eax)

    :"0"(0)