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| Rev | Author | Line No. | Line |
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| 56 | pj | 1 | /* $Id: t_imm_alloc.c,v 1.1 2003-02-28 11:48:06 pj Exp $ */ |
| 2 | |||
| 3 | /* |
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| 4 | * Mesa 3-D graphics library |
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| 5 | * Version: 4.1 |
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| 6 | * |
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| 7 | * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. |
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| 8 | * |
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 10 | * copy of this software and associated documentation files (the "Software"), |
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| 11 | * to deal in the Software without restriction, including without limitation |
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 14 | * Software is furnished to do so, subject to the following conditions: |
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| 15 | * |
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| 16 | * The above copyright notice and this permission notice shall be included |
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| 17 | * in all copies or substantial portions of the Software. |
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| 18 | * |
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | * Authors: |
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| 27 | * Keith Whitwell <keith@tungstengraphics.com> |
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| 28 | */ |
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| 29 | |||
| 30 | #include "glheader.h" |
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| 31 | #include "imports.h" |
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| 32 | #include "mtypes.h" |
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| 33 | |||
| 34 | #include "t_imm_alloc.h" |
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| 35 | |||
| 36 | |||
| 37 | static int id = 0; /* give each struct immediate a unique ID number */ |
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| 38 | |||
| 39 | static struct immediate *real_alloc_immediate( GLcontext *ctx ) |
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| 40 | { |
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| 41 | struct immediate *IM = ALIGN_CALLOC_STRUCT( immediate, 32 ); |
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| 42 | |||
| 43 | if (!IM) |
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| 44 | return 0; |
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| 45 | |||
| 46 | /* memset(IM, 0, sizeof(*IM)); */ |
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| 47 | |||
| 48 | IM->id = id++; |
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| 49 | IM->ref_count = 0; |
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| 50 | IM->FlushElt = 0; |
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| 51 | IM->LastPrimitive = IMM_MAX_COPIED_VERTS; |
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| 52 | IM->Count = IMM_MAX_COPIED_VERTS; |
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| 53 | IM->Start = IMM_MAX_COPIED_VERTS; |
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| 54 | IM->Material = 0; |
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| 55 | IM->MaterialMask = 0; |
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| 56 | IM->MaxTextureUnits = ctx->Const.MaxTextureUnits; |
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| 57 | IM->TexSize = 0; |
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| 58 | IM->NormalLengthPtr = 0; |
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| 59 | |||
| 60 | IM->CopyTexSize = 0; |
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| 61 | IM->CopyStart = IM->Start; |
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| 62 | |||
| 63 | return IM; |
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| 64 | } |
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| 65 | |||
| 66 | |||
| 67 | static void real_free_immediate( struct immediate *IM ) |
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| 68 | { |
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| 69 | static int freed = 0; |
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| 70 | |||
| 71 | if (IM->Material) { |
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| 72 | FREE( IM->Material ); |
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| 73 | FREE( IM->MaterialMask ); |
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| 74 | IM->Material = 0; |
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| 75 | IM->MaterialMask = 0; |
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| 76 | } |
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| 77 | |||
| 78 | if (IM->NormalLengthPtr) |
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| 79 | ALIGN_FREE( IM->NormalLengthPtr ); |
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| 80 | |||
| 81 | ALIGN_FREE( IM ); |
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| 82 | freed++; |
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| 83 | /* printf("outstanding %d\n", id - freed); */ |
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| 84 | } |
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| 85 | |||
| 86 | |||
| 87 | /* Cache a single allocated immediate struct. |
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| 88 | */ |
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| 89 | struct immediate *_tnl_alloc_immediate( GLcontext *ctx ) |
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| 90 | { |
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| 91 | TNLcontext *tnl = TNL_CONTEXT(ctx); |
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| 92 | struct immediate *tmp = tnl->freed_immediate; |
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| 93 | |||
| 94 | if (tmp) { |
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| 95 | tnl->freed_immediate = 0; |
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| 96 | return tmp; |
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| 97 | } |
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| 98 | else |
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| 99 | return real_alloc_immediate( ctx ); |
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| 100 | } |
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| 101 | |||
| 102 | /* May be called after tnl is destroyed. |
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| 103 | */ |
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| 104 | void _tnl_free_immediate( GLcontext *ctx, struct immediate *IM ) |
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| 105 | { |
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| 106 | TNLcontext *tnl = TNL_CONTEXT(ctx); |
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| 107 | |||
| 108 | ASSERT(IM->ref_count == 0); |
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| 109 | |||
| 110 | if (IM->NormalLengthPtr) { |
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| 111 | ALIGN_FREE(IM->NormalLengthPtr); |
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| 112 | IM->NormalLengthPtr = NULL; |
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| 113 | } |
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| 114 | |||
| 115 | if (!tnl) { |
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| 116 | real_free_immediate( IM ); |
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| 117 | } |
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| 118 | else { |
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| 119 | if (tnl->freed_immediate) |
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| 120 | real_free_immediate( tnl->freed_immediate ); |
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| 121 | |||
| 122 | tnl->freed_immediate = IM; |
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| 123 | } |
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| 124 | } |