src/mesa/drivers/dri/mga/mga_xmesa.h

   1 /*
   2  * Copyright 2000-2001 VA Linux Systems, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  19  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Keith Whitwell <keith@tungstengraphics.com>
  26  */
  27 /* $XFree86: xc/lib/GL/mesa/src/drv/mga/mga_xmesa.h,v 1.12 2002/12/16 16:18:52 dawes Exp $ */
  28
  29 #ifndef _MGA_INIT_H_
  30 #define _MGA_INIT_H_
  31
  32 #ifdef GLX_DIRECT_RENDERING
  33
  34 #include <sys/time.h>
  35 #include "dri_util.h"
  36 #include "mtypes.h"
  37 #include "mgaregs.h"
  38 #include "mga_common.h"
  39
  40 typedef struct mga_screen_private_s {
  41
  42    int chipset;
  43    int width;
  44    int height;
  45    int mem;
  46
  47    int cpp;                     /* for front and back buffers */
  48    GLint agpMode;
  49    unsigned int irq;            /* IRQ number (0 means none) */
  50    GLboolean  linecomp_sane;    /* GL_TRUE if line comp. programmed correctly
  51                                  * by the DDX driver.
  52                                  */
  53
  54    unsigned int mAccess;
  55
  56    unsigned int frontOffset;
  57    unsigned int frontPitch;
  58    unsigned int backOffset;
  59    unsigned int backPitch;
  60
  61    unsigned int depthOffset;
  62    unsigned int depthPitch;
  63    int depthCpp;
  64
  65    unsigned int dmaOffset;
  66
  67    unsigned int textureOffset[DRM_MGA_NR_TEX_HEAPS];
  68    unsigned int textureSize[DRM_MGA_NR_TEX_HEAPS];
  69    int logTextureGranularity[DRM_MGA_NR_TEX_HEAPS];
  70    char *texVirtual[DRM_MGA_NR_TEX_HEAPS];
  71
  72
  73    __DRIscreenPrivate *sPriv;
  74    drmBufMapPtr  bufs;
  75
  76    drmRegion mmio;
  77    drmRegion status;
  78    drmRegion primary;
  79    drmRegion buffers;
  80    unsigned int sarea_priv_offset;
  81 } mgaScreenPrivate;
  82
  83
  84 #include "mgacontext.h"
  85
  86 extern void mgaGetLock( mgaContextPtr mmesa, GLuint flags );
  87 extern void mgaEmitHwStateLocked( mgaContextPtr mmesa );
  88 extern void mgaEmitScissorValues( mgaContextPtr mmesa, int box_nr, int emit );
  89
  90 #define GET_DISPATCH_AGE( mmesa ) mmesa->sarea->last_dispatch
  91 #define GET_ENQUEUE_AGE( mmesa ) mmesa->sarea->last_enqueue
  92
  93
  94
  95 /* Lock the hardware and validate our state.
  96  */
  97 #define LOCK_HARDWARE( mmesa )                                  \
  98   do {                                                          \
  99     char __ret=0;                                               \
 100     DRM_CAS(mmesa->driHwLock, mmesa->hHWContext,                \
 101             (DRM_LOCK_HELD|mmesa->hHWContext), __ret);          \
 102     if (__ret)                                                  \
 103         mgaGetLock( mmesa, 0 );                                 \
 104   } while (0)
 105
 106
 107 /*
 108  */
 109 #define LOCK_HARDWARE_QUIESCENT( mmesa ) do {                           \
 110         LOCK_HARDWARE( mmesa );                                         \
 111         UPDATE_LOCK( mmesa, DRM_LOCK_QUIESCENT | DRM_LOCK_FLUSH );      \
 112 } while (0)
 113
 114
 115 /* Unlock the hardware using the global current context
 116  */
 117 #define UNLOCK_HARDWARE(mmesa)                          \
 118     DRM_UNLOCK(mmesa->driFd, mmesa->driHwLock, mmesa->hHWContext);
 119
 120
 121 /* Freshen our snapshot of the drawables
 122  */
 123 #define REFRESH_DRAWABLE_INFO( mmesa )          \
 124 do {                                            \
 125    LOCK_HARDWARE( mmesa );                      \
 126    mmesa->lastX = mmesa->drawX;                 \
 127    mmesa->lastY = mmesa->drawY;                 \
 128    UNLOCK_HARDWARE( mmesa );                    \
 129 } while (0)
 130
 131
 132 #define GET_DRAWABLE_LOCK( mmesa ) while(0)
 133 #define RELEASE_DRAWABLE_LOCK( mmesa ) while(0)
 134
 135
 136 /* The 2D driver macros are busted -- we can't use them here as they
 137  * rely on the 2D driver data structures rather than taking an explicit
 138  * base address.
 139  */
 140 #define MGA_BASE( reg )         ((unsigned long)(mmesa->mgaScreen->mmio.map))
 141 #define MGA_ADDR( reg )         (MGA_BASE(reg) + reg)
 142
 143 #define MGA_DEREF( reg )        *(volatile CARD32 *)MGA_ADDR( reg )
 144 #define MGA_READ( reg )         MGA_DEREF( reg )
 145 #define MGA_WRITE( reg, val )   do { MGA_DEREF( reg ) = val; } while (0)
 146
 147 #endif
 148 #endif