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  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.  
  39. static 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.  
  51. void 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.  
  82. void 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.  */
  111. void 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.