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

   1 /**************************************************************************
   2
   3 Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
   4 All Rights Reserved.
   5
   6 Permission is hereby granted, free of charge, to any person obtaining a
   7 copy of this software and associated documentation files (the
   8 "Software"), to deal in the Software without restriction, including
   9 without limitation the rights to use, copy, modify, merge, publish,
  10 distribute, sub license, and/or sell copies of the Software, and to
  11 permit persons to whom the Software is furnished to do so, subject to
  12 the following conditions:
  13
  14 The above copyright notice and this permission notice (including the
  15 next paragraph) shall be included in all copies or substantial portions
  16 of the Software.
  17
  18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21 IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  22 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23
  24 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26
  27 **************************************************************************/
  28
  29 /*
  30  * Author:
  31  *   Jens Owen <jens@tungstengraphics.com>
  32  *
  33  */
  34
  35 #ifndef _GLINT_DRI_H_
  36 #define _GLINT_DRI_H_
  37
  38 #include "xf86drm.h"
  39 #include "glint_common.h"
  40
  41 typedef struct {
  42         unsigned int    GDeltaMode;
  43         unsigned int    GDepthMode;
  44         unsigned int    GGeometryMode;
  45         unsigned int    GTransformMode;
  46 } GAMMAContextRegionRec, *GAMMAContextRegionPtr;
  47
  48 typedef struct {
  49         unsigned char next, prev; /* indices to form a circular LRU  */
  50         unsigned char in_use;   /* owned by a client, or free? */
  51         int age;                /* tracked by clients to update local LRU's */
  52 } GAMMATextureRegionRec, *GAMMATextureRegionPtr;
  53
  54 typedef struct {
  55         GAMMAContextRegionRec context_state;
  56
  57         unsigned int dirty;
  58
  59         /* Maintain an LRU of contiguous regions of texture space.  If
  60          * you think you own a region of texture memory, and it has an
  61          * age different to the one you set, then you are mistaken and
  62          * it has been stolen by another client.  If global texAge
  63          * hasn't changed, there is no need to walk the list.
  64          *
  65          * These regions can be used as a proxy for the fine-grained
  66          * texture information of other clients - by maintaining them
  67          * in the same lru which is used to age their own textures,
  68          * clients have an approximate lru for the whole of global
  69          * texture space, and can make informed decisions as to which
  70          * areas to kick out.  There is no need to choose whether to
  71          * kick out your own texture or someone else's - simply eject
  72          * them all in LRU order.
  73          */
  74
  75 #define GAMMA_NR_TEX_REGIONS 64
  76         GAMMATextureRegionRec texList[GAMMA_NR_TEX_REGIONS+1];
  77                                 /* Last elt is sentinal */
  78         int texAge;             /* last time texture was uploaded */
  79         int last_enqueue;       /* last time a buffer was enqueued */
  80         int last_dispatch;      /* age of the most recently dispatched buffer */
  81         int last_quiescent;     /*  */
  82         int ctxOwner;           /* last context to upload state */
  83
  84         int vertex_prim;
  85 } GLINTSAREADRIRec, *GLINTSAREADRIPtr;
  86
  87 /*
  88  * Glint specific record passed back to client driver
  89  * via DRIGetDeviceInfo request
  90  */
  91 typedef struct {
  92     drmRegion   registers0;
  93     drmRegion   registers1;
  94     drmRegion   registers2;
  95     drmRegion   registers3;
  96     int                 numMultiDevices;
  97     int                 pprod;
  98     int                 cpp;
  99     int                 frontOffset;
 100     int                 frontPitch;
 101     int                 backOffset;
 102     int                 backPitch;
 103     int                 backX;
 104     int                 backY;
 105     int                 depthOffset;
 106     int                 depthPitch;
 107     int                 textureSize;
 108     int                 logTextureGranularity;
 109 } GLINTDRIRec, *GLINTDRIPtr;
 110
 111 #define GLINT_DRI_BUF_COUNT 256
 112 #define GLINT_DRI_BUF_SIZE  4096
 113
 114 #define GAMMA_NR_TEX_REGIONS 64
 115
 116 #define DMA_WRITE(val,reg)                                            \
 117 do {                                                                  \
 118     pGlint->buf2D++ = Glint##reg##Tag;                                 \
 119     pGlint->buf2D++ = val;                                           \
 120 } while (0)
 121
 122 #endif /* _GLINT_DRI_H_ */