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 
vbo_save_callback_init(struct gl_context * ctx)40 static 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  */
vbo_save_init(struct gl_context * ctx)55 void 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 
vbo_save_destroy(struct gl_context * ctx)96 void 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  */
vbo_save_fallback(struct gl_context * ctx,GLboolean fallback)125 void 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