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
  28 #ifndef _MGA_INIT_H_
  29 #define _MGA_INIT_H_
  30
  31 #include <sys/time.h>
  32 #include "dri_util.h"
  33 #include "mga_drm.h"
  34 #include "mtypes.h"
  35 #include "mgaregs.h"
  36 #include "xmlconfig.h"
  37
  38 typedef struct mga_screen_private_s {
  39    /**
  40     * Chipset "family" of this card.  Currently only \c MGA_CARD_TYPE_G200 and
  41     * \c MGA_CARD_TYPE_G400 are possible.
  42     */
  43    int chipset;
  44
  45
  46    /**
  47     * Characters (bytes) per-pixel for both the front and back buffers.
  48     *
  49     * \note
  50     * This is also implicitly the bytes per-pixel for the depth-buffer.
  51     */
  52    int cpp;
  53
  54    GLint agpMode;
  55    unsigned int irq;            /**< IRQ number (0 means none) */
  56
  57    unsigned int frontOffset;
  58    unsigned int frontPitch;
  59    unsigned int backOffset;
  60    unsigned int backPitch;
  61
  62    unsigned int depthOffset;
  63    unsigned int depthPitch;
  64
  65    unsigned int textureOffset[MGA_NR_TEX_HEAPS];
  66    unsigned int textureSize[MGA_NR_TEX_HEAPS];
  67    char *texVirtual[MGA_NR_TEX_HEAPS];
  68
  69
  70    __DRIscreenPrivate *sPriv;
  71    drmBufMapPtr  bufs;
  72
  73    drmRegion mmio;
  74    drmRegion primary;
  75    unsigned int sarea_priv_offset;
  76
  77    /** Configuration cache with default values for all contexts */
  78    driOptionCache optionCache;
  79 } mgaScreenPrivate;
  80
  81
  82 /**
  83  * mgaRenderbuffer, derived from Mesa's gl_renderbuffer
  84  */
  85 typedef struct {
  86    struct gl_renderbuffer Base;
  87    /* XXX per-window info should go here */
  88    int foo, bar;
  89 } mgaRenderbuffer;
  90
  91
  92
  93 #include "mgacontext.h"
  94
  95 extern void mgaGetLock( mgaContextPtr mmesa, GLuint flags );
  96 extern void mgaEmitHwStateLocked( mgaContextPtr mmesa );
  97 extern void mgaEmitScissorValues( mgaContextPtr mmesa, int box_nr, int emit );
  98
  99 #define GET_DISPATCH_AGE( mmesa ) mmesa->sarea->last_dispatch
 100
 101
 102
 103 /* Lock the hardware and validate our state.
 104  */
 105 #define LOCK_HARDWARE( mmesa )                                  \
 106   do {                                                          \
 107     char __ret=0;                                               \
 108     DRM_CAS(mmesa->driHwLock, mmesa->hHWContext,                \
 109             (DRM_LOCK_HELD|mmesa->hHWContext), __ret);          \
 110     if (__ret)                                                  \
 111         mgaGetLock( mmesa, 0 );                                 \
 112   } while (0)
 113
 114
 115 /*
 116  */
 117 #define LOCK_HARDWARE_QUIESCENT( mmesa ) do {                           \
 118         LOCK_HARDWARE( mmesa );                                         \
 119         UPDATE_LOCK( mmesa, DRM_LOCK_QUIESCENT | DRM_LOCK_FLUSH );      \
 120 } while (0)
 121
 122
 123 /* Unlock the hardware using the global current context
 124  */
 125 #define UNLOCK_HARDWARE(mmesa)                          \
 126     DRM_UNLOCK(mmesa->driFd, mmesa->driHwLock, mmesa->hHWContext);
 127
 128
 129 /* Freshen our snapshot of the drawables
 130  */
 131 #define REFRESH_DRAWABLE_INFO( mmesa )          \
 132 do {                                            \
 133    LOCK_HARDWARE( mmesa );                      \
 134    mmesa->lastX = mmesa->drawX;                 \
 135    mmesa->lastY = mmesa->drawY;                 \
 136    UNLOCK_HARDWARE( mmesa );                    \
 137 } while (0)
 138
 139
 140 #define GET_DRAWABLE_LOCK( mmesa ) while(0)
 141 #define RELEASE_DRAWABLE_LOCK( mmesa ) while(0)
 142
 143
 144 /* The 2D driver macros are busted -- we can't use them here as they
 145  * rely on the 2D driver data structures rather than taking an explicit
 146  * base address.
 147  */
 148 #define MGA_BASE( reg )         ((unsigned long)(mmesa->mgaScreen->mmio.map))
 149 #define MGA_ADDR( reg )         (MGA_BASE(reg) + reg)
 150
 151 #define MGA_DEREF( reg )        *(volatile u_int32_t *)MGA_ADDR( reg )
 152 #define MGA_READ( reg )         MGA_DEREF( reg )
 153
 154 #endif