src/mesa/vbo/vbo_save.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.2
   4  *
   5  * Copyright (C) 1999-2008  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 "main/mtypes.h"
  30 #include "main/bufferobj.h"
  31 #include "main/imports.h"
  32
  33 #include "vbo_context.h"
  34
  35
  36
  37 static void vbo_save_callback_init( GLcontext *ctx )
  38 {
  39    ctx->Driver.NewList = vbo_save_NewList;
  40    ctx->Driver.EndList = vbo_save_EndList;
  41    ctx->Driver.SaveFlushVertices = vbo_save_SaveFlushVertices;
  42    ctx->Driver.BeginCallList = vbo_save_BeginCallList;
  43    ctx->Driver.EndCallList = vbo_save_EndCallList;
  44    ctx->Driver.NotifySaveBegin = vbo_save_NotifyBegin;
  45 }
  46
  47
  48
  49 void vbo_save_init( GLcontext *ctx )
  50 {
  51    struct vbo_context *vbo = vbo_context(ctx);
  52    struct vbo_save_context *save = &vbo->save;
  53
  54    save->ctx = ctx;
  55
  56    vbo_save_api_init( save );
  57    vbo_save_callback_init(ctx);
  58
  59    {
  60       struct gl_client_array *arrays = save->arrays;
  61       unsigned i;
  62
  63       memcpy(arrays,      vbo->legacy_currval,  16 * sizeof(arrays[0]));
  64       memcpy(arrays + 16, vbo->generic_currval, 16 * sizeof(arrays[0]));
  65
  66       for (i = 0; i < 16; ++i) {
  67          arrays[i     ].BufferObj = NULL;
  68          arrays[i + 16].BufferObj = NULL;
  69          _mesa_reference_buffer_object(ctx, &arrays[i     ].BufferObj,
  70                                        vbo->legacy_currval[i].BufferObj);
  71          _mesa_reference_buffer_object(ctx, &arrays[i + 16].BufferObj,
  72                                        vbo->generic_currval[i].BufferObj);
  73       }
  74    }
  75
  76    ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
  77 }
  78
  79
  80 void vbo_save_destroy( GLcontext *ctx )
  81 {
  82    struct vbo_context *vbo = vbo_context(ctx);
  83    struct vbo_save_context *save = &vbo->save;
  84    GLuint i;
  85
  86    if (save->prim_store) {
  87       if ( --save->prim_store->refcount == 0 ) {
  88          FREE( save->prim_store );
  89          save->prim_store = NULL;
  90       }
  91       if ( --save->vertex_store->refcount == 0 ) {
  92          _mesa_reference_buffer_object(ctx,
  93                                        &save->vertex_store->bufferobj, NULL);
  94          FREE( save->vertex_store );
  95          save->vertex_store = NULL;
  96       }
  97    }
  98
  99    for (i = 0; i < VBO_ATTRIB_MAX; i++) {
 100       _mesa_reference_buffer_object(ctx, &save->arrays[i].BufferObj, NULL);
 101    }
 102 }
 103
 104
 105
 106
 107 /* Note that this can occur during the playback of a display list:
 108  */
 109 void vbo_save_fallback( GLcontext *ctx, GLboolean fallback )
 110 {
 111    struct vbo_save_context *save = &vbo_context(ctx)->save;
 112
 113    if (fallback)
 114       save->replay_flags |= VBO_SAVE_FALLBACK;
 115    else
 116       save->replay_flags &= ~VBO_SAVE_FALLBACK;
 117 }
 118
 119