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