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1 /**************************************************************************
2  *
3  * Copyright 2008 VMware, Inc.
4  * 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
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27 
28 #include "util/u_debug.h"
29 #include "tgsi_iterate.h"
30 
31 boolean
tgsi_iterate_shader(const struct tgsi_token * tokens,struct tgsi_iterate_context * ctx)32 tgsi_iterate_shader(
33    const struct tgsi_token *tokens,
34    struct tgsi_iterate_context *ctx )
35 {
36    struct tgsi_parse_context parse;
37 
38    if (tgsi_parse_init( &parse, tokens ) != TGSI_PARSE_OK)
39       return FALSE;
40 
41    ctx->processor = parse.FullHeader.Processor;
42 
43    if (ctx->prolog)
44       if (!ctx->prolog( ctx ))
45          goto fail;
46 
47    while (!tgsi_parse_end_of_tokens( &parse )) {
48       tgsi_parse_token( &parse );
49 
50       switch (parse.FullToken.Token.Type) {
51       case TGSI_TOKEN_TYPE_INSTRUCTION:
52          if (ctx->iterate_instruction)
53             if (!ctx->iterate_instruction( ctx, &parse.FullToken.FullInstruction ))
54                goto fail;
55          break;
56 
57       case TGSI_TOKEN_TYPE_DECLARATION:
58          if (ctx->iterate_declaration)
59             if (!ctx->iterate_declaration( ctx, &parse.FullToken.FullDeclaration ))
60                goto fail;
61          break;
62 
63       case TGSI_TOKEN_TYPE_IMMEDIATE:
64          if (ctx->iterate_immediate)
65             if (!ctx->iterate_immediate( ctx, &parse.FullToken.FullImmediate ))
66                goto fail;
67          break;
68 
69       case TGSI_TOKEN_TYPE_PROPERTY:
70          if (ctx->iterate_property)
71             if (!ctx->iterate_property( ctx,  &parse.FullToken.FullProperty ))
72                goto fail;
73          break;
74 
75       default:
76          assert( 0 );
77       }
78    }
79 
80    if (ctx->epilog)
81       if (!ctx->epilog( ctx ))
82          goto fail;
83 
84    tgsi_parse_free( &parse );
85    return TRUE;
86 
87 fail:
88    tgsi_parse_free( &parse );
89    return FALSE;
90 }
91