vbo_save.c revision c1f859d4 
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/dlist.h"
32#include "main/vtxfmt.h"
33#include "main/imports.h"
34
35#include "vbo_context.h"
36
37
38
39static void vbo_save_callback_init( GLcontext *ctx )
40{
41   ctx->Driver.NewList = vbo_save_NewList;
42   ctx->Driver.EndList = vbo_save_EndList;
43   ctx->Driver.SaveFlushVertices = vbo_save_SaveFlushVertices;
44   ctx->Driver.BeginCallList = vbo_save_BeginCallList;
45   ctx->Driver.EndCallList = vbo_save_EndCallList;
46   ctx->Driver.NotifySaveBegin = vbo_save_NotifyBegin;
47}
48
49
50
51void vbo_save_init( GLcontext *ctx )
52{
53   struct vbo_context *vbo = vbo_context(ctx);
54   struct vbo_save_context *save = &vbo->save;
55
56   save->ctx = ctx;
57
58   vbo_save_api_init( save );
59   vbo_save_callback_init(ctx);
60
61   {
62      struct gl_client_array *arrays = save->arrays;
63      memcpy(arrays,      vbo->legacy_currval,  16 * sizeof(arrays[0]));
64      memcpy(arrays + 16, vbo->generic_currval, 16 * sizeof(arrays[0]));
65   }
66
67   ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
68}
69
70
71void vbo_save_destroy( GLcontext *ctx )
72{
73   struct vbo_context *vbo = vbo_context(ctx);
74   struct vbo_save_context *save = &vbo->save;
75   GLuint i;
76
77   if (save->prim_store) {
78      if ( --save->prim_store->refcount == 0 ) {
79         FREE( save->prim_store );
80         save->prim_store = NULL;
81      }
82      if ( --save->vertex_store->refcount == 0 ) {
83         _mesa_reference_buffer_object(ctx,
84                                       &save->vertex_store->bufferobj, NULL);
85         FREE( save->vertex_store );
86         save->vertex_store = NULL;
87      }
88   }
89
90   for (i = 0; i < VBO_ATTRIB_MAX; i++) {
91      _mesa_reference_buffer_object(ctx, &save->arrays[i].BufferObj, NULL);
92   }
93}
94
95
96
97
98/* Note that this can occur during the playback of a display list:
99 */
100void vbo_save_fallback( GLcontext *ctx, GLboolean fallback )
101{
102   struct vbo_save_context *save = &vbo_context(ctx)->save;
103
104   if (fallback)
105      save->replay_flags |= VBO_SAVE_FALLBACK;
106   else
107      save->replay_flags &= ~VBO_SAVE_FALLBACK;
108}
109
110
111