vbo_save.c revision f9995b30756140724f41daf963fa06167912be7f 
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#if FEATURE_dlist
37
38
39static void vbo_save_callback_init( struct gl_context *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( struct gl_context *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      unsigned i;
64
65      memcpy(arrays,      vbo->legacy_currval,  16 * sizeof(arrays[0]));
66      memcpy(arrays + 16, vbo->generic_currval, 16 * sizeof(arrays[0]));
67
68      for (i = 0; i < 16; ++i) {
69         arrays[i     ].BufferObj = NULL;
70         arrays[i + 16].BufferObj = NULL;
71         _mesa_reference_buffer_object(ctx, &arrays[i     ].BufferObj,
72                                       vbo->legacy_currval[i].BufferObj);
73         _mesa_reference_buffer_object(ctx, &arrays[i + 16].BufferObj,
74                                       vbo->generic_currval[i].BufferObj);
75      }
76   }
77
78   ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
79}
80
81
82void vbo_save_destroy( struct gl_context *ctx )
83{
84   struct vbo_context *vbo = vbo_context(ctx);
85   struct vbo_save_context *save = &vbo->save;
86   GLuint i;
87
88   if (save->prim_store) {
89      if ( --save->prim_store->refcount == 0 ) {
90         FREE( save->prim_store );
91         save->prim_store = NULL;
92      }
93      if ( --save->vertex_store->refcount == 0 ) {
94         _mesa_reference_buffer_object(ctx,
95                                       &save->vertex_store->bufferobj, NULL);
96         FREE( save->vertex_store );
97         save->vertex_store = NULL;
98      }
99   }
100
101   for (i = 0; i < VBO_ATTRIB_MAX; i++) {
102      _mesa_reference_buffer_object(ctx, &save->arrays[i].BufferObj, NULL);
103   }
104}
105
106
107
108
109/* Note that this can occur during the playback of a display list:
110 */
111void vbo_save_fallback( struct gl_context *ctx, GLboolean fallback )
112{
113   struct vbo_save_context *save = &vbo_context(ctx)->save;
114
115   if (fallback)
116      save->replay_flags |= VBO_SAVE_FALLBACK;
117   else
118      save->replay_flags &= ~VBO_SAVE_FALLBACK;
119}
120
121
122#endif /* FEATURE_dlist */
123