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 #include <sys/time.h>
  33 #include "dri_util.h"
  34 #include "mga_drm.h"
  35 #include "mtypes.h"
  36 #include "mgaregs.h"
  37 #include "xmlconfig.h"
  38
  39 typedef struct mga_screen_private_s {
  40    /**
  41     * Chipset "family" of this card.  Currently only \c MGA_CARD_TYPE_G200 and
  42     * \c MGA_CARD_TYPE_G400 are possible.
  43     */
  44    int chipset;
  45
  46
  47    /**
  48     * Characters (bytes) per-pixel for both the front and back buffers.
  49     *
  50     * \note
  51     * This is also implicitly the bytes per-pixel for the depth-buffer.
  52     */
  53    int cpp;
  54
  55    GLint agpMode;
  56    unsigned int irq;            /**< IRQ number (0 means none) */
  57
  58    unsigned int frontOffset;
  59    unsigned int frontPitch;
  60    unsigned int backOffset;
  61    unsigned int backPitch;
  62
  63    unsigned int depthOffset;
  64    unsigned int depthPitch;
  65
  66    unsigned int textureOffset[MGA_NR_TEX_HEAPS];
  67    unsigned int textureSize[MGA_NR_TEX_HEAPS];
  68    char *texVirtual[MGA_NR_TEX_HEAPS];
  69
  70
  71    __DRIscreenPrivate *sPriv;
  72    drmBufMapPtr  bufs;
  73
  74    drmRegion mmio;
  75    drmRegion primary;
  76    unsigned int sarea_priv_offset;
  77
  78    /** Configuration cache with default values for all contexts */
  79    driOptionCache optionCache;
  80 } mgaScreenPrivate;
  81
  82
  83 /**
  84  * mgaRenderbuffer, derived from Mesa's gl_renderbuffer
  85  */
  86 typedef struct {
  87    struct gl_renderbuffer Base;
  88    /* XXX per-window info should go here */
  89    int foo, bar;
  90 } mgaRenderbuffer;
  91
  92
  93
  94 #include "mgacontext.h"
  95
  96 extern void mgaGetLock( mgaContextPtr mmesa, GLuint flags );
  97 extern void mgaEmitHwStateLocked( mgaContextPtr mmesa );
  98 extern void mgaEmitScissorValues( mgaContextPtr mmesa, int box_nr, int emit );
  99
 100 #define GET_DISPATCH_AGE( mmesa ) mmesa->sarea->last_dispatch
 101
 102
 103
 104 /* Lock the hardware and validate our state.
 105  */
 106 #define LOCK_HARDWARE( mmesa )                                  \
 107   do {                                                          \
 108     char __ret=0;                                               \
 109     DRM_CAS(mmesa->driHwLock, mmesa->hHWContext,                \
 110             (DRM_LOCK_HELD|mmesa->hHWContext), __ret);          \
 111     if (__ret)                                                  \
 112         mgaGetLock( mmesa, 0 );                                 \
 113   } while (0)
 114
 115
 116 /*
 117  */
 118 #define LOCK_HARDWARE_QUIESCENT( mmesa ) do {                           \
 119         LOCK_HARDWARE( mmesa );                                         \
 120         UPDATE_LOCK( mmesa, DRM_LOCK_QUIESCENT | DRM_LOCK_FLUSH );      \
 121 } while (0)
 122
 123
 124 /* Unlock the hardware using the global current context
 125  */
 126 #define UNLOCK_HARDWARE(mmesa)                          \
 127     DRM_UNLOCK(mmesa->driFd, mmesa->driHwLock, mmesa->hHWContext);
 128
 129
 130 /* Freshen our snapshot of the drawables
 131  */
 132 #define REFRESH_DRAWABLE_INFO( mmesa )          \
 133 do {                                            \
 134    LOCK_HARDWARE( mmesa );                      \
 135    mmesa->lastX = mmesa->drawX;                 \
 136    mmesa->lastY = mmesa->drawY;                 \
 137    UNLOCK_HARDWARE( mmesa );                    \
 138 } while (0)
 139
 140
 141 #define GET_DRAWABLE_LOCK( mmesa ) while(0)
 142 #define RELEASE_DRAWABLE_LOCK( mmesa ) while(0)
 143
 144
 145 /* The 2D driver macros are busted -- we can't use them here as they
 146  * rely on the 2D driver data structures rather than taking an explicit
 147  * base address.
 148  */
 149 #define MGA_BASE( reg )         ((unsigned long)(mmesa->mgaScreen->mmio.map))
 150 #define MGA_ADDR( reg )         (MGA_BASE(reg) + reg)
 151
 152 #define MGA_DEREF( reg )        *(volatile u_int32_t *)MGA_ADDR( reg )
 153 #define MGA_READ( reg )         MGA_DEREF( reg )
 154
 155 #endif