Home | History | Annotate | Download | only in vbo 
      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 (at) 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 /**
     53  * Called at context creation time.
     54  */
     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 
     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  */
    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