src/mesa/drivers/dri/gamma/server/glint_dri.h

   1 /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/glint/glint_dri.h,v 1.7 2002/10/30 12:52:16 alanh Exp $ */
   2 /**************************************************************************
   3
   4 Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
   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
   9 "Software"), to deal in the Software without restriction, including
  10 without limitation the rights to use, copy, modify, merge, publish,
  11 distribute, sub license, and/or sell copies of the Software, and to
  12 permit persons to whom the Software is furnished to do so, subject to
  13 the following conditions:
  14
  15 The above copyright notice and this permission notice (including the
  16 next paragraph) shall be included in all copies or substantial portions
  17 of the Software.
  18
  19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22 IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  23 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24
  25 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  26 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27
  28 **************************************************************************/
  29
  30 /*
  31  * Author:
  32  *   Jens Owen <jens@tungstengraphics.com>
  33  *
  34  */
  35
  36 #ifndef _GLINT_DRI_H_
  37 #define _GLINT_DRI_H_
  38
  39 #include "xf86drm.h"
  40 #include "glint_common.h"
  41
  42 typedef struct {
  43         unsigned int    GDeltaMode;
  44         unsigned int    GDepthMode;
  45         unsigned int    GGeometryMode;
  46         unsigned int    GTransformMode;
  47 } GAMMAContextRegionRec, *GAMMAContextRegionPtr;
  48
  49 typedef struct {
  50         unsigned char next, prev; /* indices to form a circular LRU  */
  51         unsigned char in_use;   /* owned by a client, or free? */
  52         int age;                /* tracked by clients to update local LRU's */
  53 } GAMMATextureRegionRec, *GAMMATextureRegionPtr;
  54
  55 typedef struct {
  56         GAMMAContextRegionRec context_state;
  57
  58         unsigned int dirty;
  59
  60         /* Maintain an LRU of contiguous regions of texture space.  If
  61          * you think you own a region of texture memory, and it has an
  62          * age different to the one you set, then you are mistaken and
  63          * it has been stolen by another client.  If global texAge
  64          * hasn't changed, there is no need to walk the list.
  65          *
  66          * These regions can be used as a proxy for the fine-grained
  67          * texture information of other clients - by maintaining them
  68          * in the same lru which is used to age their own textures,
  69          * clients have an approximate lru for the whole of global
  70          * texture space, and can make informed decisions as to which
  71          * areas to kick out.  There is no need to choose whether to
  72          * kick out your own texture or someone else's - simply eject
  73          * them all in LRU order.
  74          */
  75
  76 #define GAMMA_NR_TEX_REGIONS 64
  77         GAMMATextureRegionRec texList[GAMMA_NR_TEX_REGIONS+1];
  78                                 /* Last elt is sentinal */
  79         int texAge;             /* last time texture was uploaded */
  80         int last_enqueue;       /* last time a buffer was enqueued */
  81         int last_dispatch;      /* age of the most recently dispatched buffer */
  82         int last_quiescent;     /*  */
  83         int ctxOwner;           /* last context to upload state */
  84
  85         int vertex_prim;
  86 } GLINTSAREADRIRec, *GLINTSAREADRIPtr;
  87
  88 /*
  89  * Glint specific record passed back to client driver
  90  * via DRIGetDeviceInfo request
  91  */
  92 typedef struct {
  93     drmRegion   registers0;
  94     drmRegion   registers1;
  95     drmRegion   registers2;
  96     drmRegion   registers3;
  97     int                 numMultiDevices;
  98     int                 pprod;
  99     int                 cpp;
 100     int                 frontOffset;
 101     int                 frontPitch;
 102     int                 backOffset;
 103     int                 backPitch;
 104     int                 backX;
 105     int                 backY;
 106     int                 depthOffset;
 107     int                 depthPitch;
 108     int                 textureSize;
 109     int                 logTextureGranularity;
 110 } GLINTDRIRec, *GLINTDRIPtr;
 111
 112 #define GLINT_DRI_BUF_COUNT 256
 113 #define GLINT_DRI_BUF_SIZE  4096
 114
 115 #define GAMMA_NR_TEX_REGIONS 64
 116
 117 #define DMA_WRITE(val,reg)                                            \
 118 do {                                                                  \
 119     pGlint->buf2D++ = Glint##reg##Tag;                                 \
 120     pGlint->buf2D++ = val;                                           \
 121 } while (0)
 122
 123 #endif /* _GLINT_DRI_H_ */