src/mesa/drivers/dri/i965/brw_save.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.3
   4  *
   5  * Copyright (C) 1999-2005  Brian Paul   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 shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Keith Whitwell <keith@tungstengraphics.com>
  26  */
  27
  28
  29 #include "mtypes.h"
  30 #include "api_arrayelt.h"
  31 #include "dlist.h"
  32 #include "vtxfmt.h"
  33 #include "imports.h"
  34
  35 #include "brw_save.h"
  36
  37
  38
  39 void brw_save_init( GLcontext *ctx )
  40 {
  41    struct brw_save_context *save = CALLOC_STRUCT(brw_save_context);
  42
  43    if (ctx->swtnl_im == NULL) {
  44       ctx->swtnl_im = CALLOC_STRUCT(brw_exec_save);
  45    }
  46
  47    save->ctx = ctx;
  48    IMM_CONTEXT(ctx)->save = save;
  49
  50    /* Initialize the arrayelt helper
  51     */
  52    if (!ctx->aelt_context &&
  53        !_ae_create_context( ctx ))
  54       return;
  55
  56    brw_save_api_init( save );
  57    brw_save_wakeup(ctx);
  58
  59    ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
  60 }
  61
  62
  63 void brw_save_destroy( GLcontext *ctx )
  64 {
  65    struct brw_save_context *save = IMM_CONTEXT(ctx)->save;
  66    if (save) {
  67       FREE(save);
  68       IMM_CONTEXT(ctx)->save = NULL;
  69    }
  70
  71    if (ctx->aelt_context) {
  72       _ae_destroy_context( ctx );
  73       ctx->aelt_context = NULL;
  74    }
  75
  76    if (IMM_CONTEXT(ctx)->exec == NULL &&
  77        IMM_CONTEXT(ctx)->save == NULL) {
  78       FREE(IMM_CONTEXT(ctx));
  79       ctx->swtnl_im = NULL;
  80    }
  81 }
  82
  83
  84 void brw_save_invalidate_state( GLcontext *ctx, GLuint new_state )
  85 {
  86    _ae_invalidate_state(ctx, new_state);
  87 }
  88
  89
  90 /* Note that this can occur during the playback of a display list:
  91  */
  92 void brw_save_fallback( GLcontext *ctx, GLboolean fallback )
  93 {
  94    struct brw_save_context *save = IMM_CONTEXT(ctx)->save;
  95
  96    if (fallback)
  97       save->replay_flags |= BRW_SAVE_FALLBACK;
  98    else
  99       save->replay_flags &= ~BRW_SAVE_FALLBACK;
 100 }
 101
 102
 103 /* I don't see any reason to swap this code out on fallbacks.  It
 104  * wouldn't really mean anything to do so anyway as the old lists are
 105  * still around from pre-fallback.  Instead, the above code ensures
 106  * that vertices are routed back through immediate mode dispatch on
 107  * fallback.
 108  *
 109  * The below can be moved into init or removed:
 110  */
 111 void brw_save_wakeup( GLcontext *ctx )
 112 {
 113    ctx->Driver.NewList = brw_save_NewList;
 114    ctx->Driver.EndList = brw_save_EndList;
 115    ctx->Driver.SaveFlushVertices = brw_save_SaveFlushVertices;
 116    ctx->Driver.BeginCallList = brw_save_BeginCallList;
 117    ctx->Driver.EndCallList = brw_save_EndCallList;
 118    ctx->Driver.NotifySaveBegin = brw_save_NotifyBegin;
 119
 120    /* Assume we haven't been getting state updates either:
 121     */
 122    brw_save_invalidate_state( ctx, ~0 );
 123 }
 124
 125
 126