src/mesa/drivers/dri/mga/server/mga_sarea.h

   1 /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga_sarea.h,v 1.1 2001/03/21 17:11:47 dawes Exp $ */
   2
   3 /*
   4  * Copyright 2000 Gareth Hughes
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  22  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *   Gareth Hughes <gareth@valinux.com>
  27  */
  28
  29 #ifndef __MGA_SAREA_H__
  30 #define __MGA_SAREA_H__
  31
  32 /* WARNING: If you change any of these defines, make sure to change
  33  * the kernel include file as well (mga_drm.h)
  34  */
  35 #ifndef __MGA_SAREA_DEFINES__
  36 #define __MGA_SAREA_DEFINES__
  37
  38 /* WARP pipe flags
  39  */
  40 #define MGA_F                   0x1             /* fog */
  41 #define MGA_A                   0x2             /* alpha */
  42 #define MGA_S                   0x4             /* specular */
  43 #define MGA_T2                  0x8             /* multitexture */
  44
  45 #define MGA_WARP_TGZ            0
  46 #define MGA_WARP_TGZF           (MGA_F)
  47 #define MGA_WARP_TGZA           (MGA_A)
  48 #define MGA_WARP_TGZAF          (MGA_F|MGA_A)
  49 #define MGA_WARP_TGZS           (MGA_S)
  50 #define MGA_WARP_TGZSF          (MGA_S|MGA_F)
  51 #define MGA_WARP_TGZSA          (MGA_S|MGA_A)
  52 #define MGA_WARP_TGZSAF         (MGA_S|MGA_F|MGA_A)
  53 #define MGA_WARP_T2GZ           (MGA_T2)
  54 #define MGA_WARP_T2GZF          (MGA_T2|MGA_F)
  55 #define MGA_WARP_T2GZA          (MGA_T2|MGA_A)
  56 #define MGA_WARP_T2GZAF         (MGA_T2|MGA_A|MGA_F)
  57 #define MGA_WARP_T2GZS          (MGA_T2|MGA_S)
  58 #define MGA_WARP_T2GZSF         (MGA_T2|MGA_S|MGA_F)
  59 #define MGA_WARP_T2GZSA         (MGA_T2|MGA_S|MGA_A)
  60 #define MGA_WARP_T2GZSAF        (MGA_T2|MGA_S|MGA_F|MGA_A)
  61
  62 #define MGA_MAX_G200_PIPES      8               /* no multitex */
  63 #define MGA_MAX_G400_PIPES      16
  64 #define MGA_MAX_WARP_PIPES      MGA_MAX_G400_PIPES
  65 #define MGA_WARP_UCODE_SIZE     32768           /* in bytes */
  66
  67 #define MGA_CARD_TYPE_G200      1
  68 #define MGA_CARD_TYPE_G400      2
  69
  70
  71 #define MGA_FRONT               0x1
  72 #define MGA_BACK                0x2
  73 #define MGA_DEPTH               0x4
  74
  75 /* What needs to be changed for the current vertex dma buffer?
  76  */
  77 #define MGA_UPLOAD_CONTEXT      0x1
  78 #define MGA_UPLOAD_TEX0         0x2
  79 #define MGA_UPLOAD_TEX1         0x4
  80 #define MGA_UPLOAD_PIPE         0x8
  81 #define MGA_UPLOAD_TEX0IMAGE    0x10
  82 #define MGA_UPLOAD_TEX1IMAGE    0x20
  83 #define MGA_UPLOAD_2D           0x40
  84 #define MGA_WAIT_AGE            0x80 /* handled client-side */
  85 #define MGA_UPLOAD_CLIPRECTS    0x100 /* handled client-side */
  86 #if 0
  87 #define MGA_DMA_FLUSH           0x200 /* set when someone gets the lock
  88                                          quiescent */
  89 #endif
  90
  91 /* 32 buffers of 64k each, total 1 meg.
  92  */
  93 #define MGA_BUFFER_SIZE         (1 << 16)
  94 #define MGA_NUM_BUFFERS         128
  95
  96 /* Keep these small for testing.
  97  */
  98 #define MGA_NR_SAREA_CLIPRECTS  8
  99
 100 /* 2 heaps (1 for card, 1 for agp), each divided into upto 128
 101  * regions, subject to a minimum region size of (1<<16) == 64k.
 102  *
 103  * Clients may subdivide regions internally, but when sharing between
 104  * clients, the region size is the minimum granularity.
 105  */
 106
 107 #define MGA_CARD_HEAP                   0
 108 #define MGA_AGP_HEAP                    1
 109 #define MGA_NR_TEX_HEAPS                2
 110 #define MGA_NR_TEX_REGIONS              16
 111 #define MGA_LOG_MIN_TEX_REGION_SIZE     16
 112
 113 #endif /* __MGA_SAREA_DEFINES__ */
 114
 115
 116 /* Setup registers for 3D context
 117  */
 118 typedef struct {
 119    unsigned int dstorg;
 120    unsigned int maccess;
 121    unsigned int plnwt;
 122    unsigned int dwgctl;
 123    unsigned int alphactrl;
 124    unsigned int fogcolor;
 125    unsigned int wflag;
 126    unsigned int tdualstage0;
 127    unsigned int tdualstage1;
 128    unsigned int fcol;
 129    unsigned int stencil;
 130    unsigned int stencilctl;
 131 } mga_context_regs_t;
 132
 133 /* Setup registers for 2D, X server
 134  */
 135 typedef struct {
 136    unsigned int pitch;
 137 } mga_server_regs_t;
 138
 139 /* Setup registers for each texture unit
 140  */
 141 typedef struct {
 142    unsigned int texctl;
 143    unsigned int texctl2;
 144    unsigned int texfilter;
 145    unsigned int texbordercol;
 146    unsigned int texorg;
 147    unsigned int texwidth;
 148    unsigned int texheight;
 149    unsigned int texorg1;
 150    unsigned int texorg2;
 151    unsigned int texorg3;
 152    unsigned int texorg4;
 153 } mga_texture_regs_t;
 154
 155 /* General ageing mechanism
 156  */
 157 typedef struct {
 158         unsigned int head;              /* Position of head pointer          */
 159         unsigned int wrap;              /* Primary DMA wrap count            */
 160 } mga_age_t;
 161
 162
 163 /* WARNING: Do not change the SAREA structure without changing the kernel
 164  * as well.
 165  */
 166 typedef struct {
 167    /* The channel for communication of state information to the kernel
 168     * on firing a vertex dma buffer.
 169     */
 170    mga_context_regs_t ContextState;
 171    mga_server_regs_t ServerState;
 172    mga_texture_regs_t TexState[2];
 173    unsigned int WarpPipe;
 174    unsigned int dirty;
 175    unsigned int vertsize;
 176
 177    /* The current cliprects, or a subset thereof.
 178     */
 179    XF86DRIClipRectRec boxes[MGA_NR_SAREA_CLIPRECTS];
 180    unsigned int nbox;
 181
 182    /* Information about the most recently used 3d drawable.  The
 183     * client fills in the req_* fields, the server fills in the
 184     * exported_ fields and puts the cliprects into boxes, above.
 185     *
 186     * The client clears the exported_drawable field before
 187     * clobbering the boxes data.
 188     */
 189
 190    unsigned int req_draw_buffer;    /* MGA_FRONT or MGA_BACK */
 191
 192    unsigned int exported_drawable;
 193    unsigned int exported_index;
 194    unsigned int exported_stamp;
 195    unsigned int exported_buffers;
 196    unsigned int exported_nfront;        /* FIXME: verify signedness... */
 197    unsigned int exported_nback;
 198    int exported_back_x, exported_front_x, exported_w;
 199    int exported_back_y, exported_front_y, exported_h;
 200    XF86DRIClipRectRec exported_boxes[MGA_NR_SAREA_CLIPRECTS];
 201
 202    /* Counters for aging textures and for client-side throttling.
 203     */
 204    unsigned int status[4];
 205    unsigned int last_wrap;
 206
 207    mga_age_t last_frame;
 208    unsigned int last_enqueue;       /* last time a buffer was enqueued */
 209    unsigned int last_dispatch;      /* age of the most recently dispatched buffer */
 210    unsigned int last_quiescent;     /*  */
 211
 212    /* LRU lists for texture memory in agp space and on the card.
 213     */
 214    drmTextureRegion texList[MGA_NR_TEX_HEAPS][MGA_NR_TEX_REGIONS+1];
 215    unsigned int texAge[MGA_NR_TEX_HEAPS];
 216
 217    /* Last context that uploaded statel
 218     */
 219    int ctxOwner;
 220 } MGASAREAPrivRec, *MGASAREAPrivPtr;
 221
 222 #endif