vbo_save.c revision 3464ebd5 
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#include "main/mfeatures.h"
33
34#include "vbo_context.h"
35
36
37#if FEATURE_dlist
38
39
40static void vbo_save_callback_init( struct gl_context *ctx )
41{
42   ctx->Driver.NewList = vbo_save_NewList;
43   ctx->Driver.EndList = vbo_save_EndList;
44   ctx->Driver.SaveFlushVertices = vbo_save_SaveFlushVertices;
45   ctx->Driver.BeginCallList = vbo_save_BeginCallList;
46   ctx->Driver.EndCallList = vbo_save_EndCallList;
47   ctx->Driver.NotifySaveBegin = vbo_save_NotifyBegin;
48}
49
50
51
52void vbo_save_init( struct gl_context *ctx )
53{
54   struct vbo_context *vbo = vbo_context(ctx);
55   struct vbo_save_context *save = &vbo->save;
56
57   save->ctx = ctx;
58
59   vbo_save_api_init( save );
60   vbo_save_callback_init(ctx);
61
62   {
63      struct gl_client_array *arrays = save->arrays;
64      unsigned i;
65
66      memcpy(arrays,      vbo->legacy_currval,  16 * sizeof(arrays[0]));
67      memcpy(arrays + 16, vbo->generic_currval, 16 * sizeof(arrays[0]));
68
69      for (i = 0; i < 16; ++i) {
70         arrays[i     ].BufferObj = NULL;
71         arrays[i + 16].BufferObj = NULL;
72         _mesa_reference_buffer_object(ctx, &arrays[i     ].BufferObj,
73                                       vbo->legacy_currval[i].BufferObj);
74         _mesa_reference_buffer_object(ctx, &arrays[i + 16].BufferObj,
75                                       vbo->generic_currval[i].BufferObj);
76      }
77   }
78
79   ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
80}
81
82
83void vbo_save_destroy( struct gl_context *ctx )
84{
85   struct vbo_context *vbo = vbo_context(ctx);
86   struct vbo_save_context *save = &vbo->save;
87   GLuint i;
88
89   if (save->prim_store) {
90      if ( --save->prim_store->refcount == 0 ) {
91         FREE( save->prim_store );
92         save->prim_store = NULL;
93      }
94      if ( --save->vertex_store->refcount == 0 ) {
95         _mesa_reference_buffer_object(ctx,
96                                       &save->vertex_store->bufferobj, NULL);
97         FREE( save->vertex_store );
98         save->vertex_store = NULL;
99      }
100   }
101
102   for (i = 0; i < VBO_ATTRIB_MAX; i++) {
103      _mesa_reference_buffer_object(ctx, &save->arrays[i].BufferObj, NULL);
104   }
105}
106
107
108
109
110/* Note that this can occur during the playback of a display list:
111 */
112void vbo_save_fallback( struct gl_context *ctx, GLboolean fallback )
113{
114   struct vbo_save_context *save = &vbo_context(ctx)->save;
115
116   if (fallback)
117      save->replay_flags |= VBO_SAVE_FALLBACK;
118   else
119      save->replay_flags &= ~VBO_SAVE_FALLBACK;
120}
121
122
123#endif /* FEATURE_dlist */
124