src/mesa/vbo/vbo_save.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Keith Whitwell <keithw@vmware.com>
  26  */
  27
  28
  29 #include "main/mtypes.h"
  30 #include "main/arrayobj.h"
  31 #include "main/bufferobj.h"
  32
  33 #include "vbo_private.h"
  34
  35
  36 /**
  37  * Called at context creation time.
  38  */
  39 void vbo_save_init( struct gl_context *ctx )
  40 {
  41    struct vbo_context *vbo = vbo_context(ctx);
  42    struct vbo_save_context *save = &vbo->save;
  43
  44    save->ctx = ctx;
  45
  46    vbo_save_api_init( save );
  47
  48    for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm)
  49       save->VAO[vpm] = NULL;
  50
  51    ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
  52 }
  53
  54
  55 void vbo_save_destroy( struct gl_context *ctx )
  56 {
  57    struct vbo_context *vbo = vbo_context(ctx);
  58    struct vbo_save_context *save = &vbo->save;
  59
  60    for (gl_vertex_processing_mode vpm = VP_MODE_FF; vpm < VP_MODE_MAX; ++vpm)
  61       _mesa_reference_vao(ctx, &save->VAO[vpm], NULL);
  62
  63    if (save->prim_store) {
  64       if ( --save->prim_store->refcount == 0 ) {
  65          free(save->prim_store);
  66          save->prim_store = NULL;
  67       }
  68    }
  69    if (save->vertex_store) {
  70       _mesa_reference_buffer_object(ctx, &save->vertex_store->bufferobj, NULL);
  71       free(save->vertex_store);
  72       save->vertex_store = NULL;
  73    }
  74 }
  75
  76
  77
  78
  79 /* Note that this can occur during the playback of a display list:
  80  */
  81 void vbo_save_fallback( struct gl_context *ctx, GLboolean fallback )
  82 {
  83    struct vbo_save_context *save = &vbo_context(ctx)->save;
  84
  85    if (fallback)
  86       save->replay_flags |= VBO_SAVE_FALLBACK;
  87    else
  88       save->replay_flags &= ~VBO_SAVE_FALLBACK;
  89 }