src/mesa/vbo/vbo_save.c

   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
  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 void 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
  83 void 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  */
 112 void 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 */