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
52/**
53 * Called at context creation time.
54 */
55void vbo_save_init( struct gl_context *ctx )
56{
57   struct vbo_context *vbo = vbo_context(ctx);
58   struct vbo_save_context *save = &vbo->save;
59
60   save->ctx = ctx;
61
62   vbo_save_api_init( save );
63   vbo_save_callback_init(ctx);
64
65   {
66      struct gl_client_array *arrays = save->arrays;
67      unsigned i;
68
69      memcpy(arrays, &vbo->currval[VBO_ATTRIB_POS],
70             VERT_ATTRIB_FF_MAX * sizeof(arrays[0]));
71      for (i = 0; i < VERT_ATTRIB_FF_MAX; ++i) {
72         struct gl_client_array *array;
73         array = &arrays[VERT_ATTRIB_FF(i)];
74         array->BufferObj = NULL;
75         _mesa_reference_buffer_object(ctx, &arrays->BufferObj,
76                                       vbo->currval[VBO_ATTRIB_POS+i].BufferObj);
77      }
78
79      memcpy(arrays + VERT_ATTRIB_GENERIC(0),
80             &vbo->currval[VBO_ATTRIB_GENERIC0],
81             VERT_ATTRIB_GENERIC_MAX * sizeof(arrays[0]));
82
83      for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; ++i) {
84         struct gl_client_array *array;
85         array = &arrays[VERT_ATTRIB_GENERIC(i)];
86         array->BufferObj = NULL;
87         _mesa_reference_buffer_object(ctx, &array->BufferObj,
88                           vbo->currval[VBO_ATTRIB_GENERIC0+i].BufferObj);
89      }
90   }
91
92   ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
93}
94
95
96void vbo_save_destroy( struct gl_context *ctx )
97{
98   struct vbo_context *vbo = vbo_context(ctx);
99   struct vbo_save_context *save = &vbo->save;
100   GLuint i;
101
102   if (save->prim_store) {
103      if ( --save->prim_store->refcount == 0 ) {
104         FREE( save->prim_store );
105         save->prim_store = NULL;
106      }
107      if ( --save->vertex_store->refcount == 0 ) {
108         _mesa_reference_buffer_object(ctx,
109                                       &save->vertex_store->bufferobj, NULL);
110         FREE( save->vertex_store );
111         save->vertex_store = NULL;
112      }
113   }
114
115   for (i = 0; i < VBO_ATTRIB_MAX; i++) {
116      _mesa_reference_buffer_object(ctx, &save->arrays[i].BufferObj, NULL);
117   }
118}
119
120
121
122
123/* Note that this can occur during the playback of a display list:
124 */
125void vbo_save_fallback( struct gl_context *ctx, GLboolean fallback )
126{
127   struct vbo_save_context *save = &vbo_context(ctx)->save;
128
129   if (fallback)
130      save->replay_flags |= VBO_SAVE_FALLBACK;
131   else
132      save->replay_flags &= ~VBO_SAVE_FALLBACK;
133}
134
135
136#endif /* FEATURE_dlist */
137