dll/opengl/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 #include <precomp.h>
  29
  30 #if FEATURE_dlist
  31
  32
  33 static void vbo_save_callback_init( struct gl_context *ctx )
  34 {
  35    ctx->Driver.NewList = vbo_save_NewList;
  36    ctx->Driver.EndList = vbo_save_EndList;
  37    ctx->Driver.SaveFlushVertices = vbo_save_SaveFlushVertices;
  38    ctx->Driver.BeginCallList = vbo_save_BeginCallList;
  39    ctx->Driver.EndCallList = vbo_save_EndCallList;
  40    ctx->Driver.NotifySaveBegin = vbo_save_NotifyBegin;
  41 }
  42
  43
  44
  45 void vbo_save_init( struct gl_context *ctx )
  46 {
  47    struct vbo_context *vbo = vbo_context(ctx);
  48    struct vbo_save_context *save = &vbo->save;
  49
  50    save->ctx = ctx;
  51
  52    vbo_save_api_init( save );
  53    vbo_save_callback_init(ctx);
  54
  55    {
  56       struct gl_client_array *arrays = save->arrays;
  57       unsigned i;
  58
  59       memcpy(arrays, vbo->currval,
  60              VBO_ATTRIB_MAX * sizeof(arrays[0]));
  61       for (i = 0; i < VBO_ATTRIB_MAX; ++i) {
  62          struct gl_client_array *array;
  63          array = &arrays[i];
  64          array->BufferObj = NULL;
  65          _mesa_reference_buffer_object(ctx, &arrays->BufferObj,
  66                                        vbo->currval[i].BufferObj);
  67       }
  68    }
  69
  70    ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
  71 }
  72
  73
  74 void vbo_save_destroy( struct gl_context *ctx )
  75 {
  76    struct vbo_context *vbo = vbo_context(ctx);
  77    struct vbo_save_context *save = &vbo->save;
  78    GLuint i;
  79
  80    if (save->prim_store) {
  81       if ( --save->prim_store->refcount == 0 ) {
  82          FREE( save->prim_store );
  83          save->prim_store = NULL;
  84       }
  85       if ( --save->vertex_store->refcount == 0 ) {
  86          _mesa_reference_buffer_object(ctx,
  87                                        &save->vertex_store->bufferobj, NULL);
  88          FREE( save->vertex_store );
  89          save->vertex_store = NULL;
  90       }
  91    }
  92
  93    for (i = 0; i < VBO_ATTRIB_MAX; i++) {
  94       _mesa_reference_buffer_object(ctx, &save->arrays[i].BufferObj, NULL);
  95    }
  96 }
  97
  98
  99
 100
 101 /* Note that this can occur during the playback of a display list:
 102  */
 103 void vbo_save_fallback( struct gl_context *ctx, GLboolean fallback )
 104 {
 105    struct vbo_save_context *save = &vbo_context(ctx)->save;
 106
 107    if (fallback)
 108       save->replay_flags |= VBO_SAVE_FALLBACK;
 109    else
 110       save->replay_flags &= ~VBO_SAVE_FALLBACK;
 111 }
 112
 113
 114 #endif /* FEATURE_dlist */