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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5563 | serge | 1 | /* |
| 2 | * Mesa 3-D graphics library |
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| 3 | * |
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| 4 | * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
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| 5 | * Copyright (C) 2010 VMware, Inc. All Rights Reserved. |
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| 6 | * |
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| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 8 | * copy of this software and associated documentation files (the "Software"), |
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| 9 | * to deal in the Software without restriction, including without limitation |
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| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 11 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 12 | * Software is furnished to do so, subject to the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice shall be included |
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| 15 | * in all copies or substantial portions of the Software. |
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| 16 | * |
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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| 21 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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| 22 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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| 23 | * OTHER DEALINGS IN THE SOFTWARE. |
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| 24 | */ |
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| 25 | |||
| 26 | |||
| 27 | /** |
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| 28 | * No-op dispatch table. |
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| 29 | * |
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| 30 | * This file defines a special dispatch table which is loaded with no-op |
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| 31 | * functions. |
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| 32 | * |
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| 33 | * When there's no current rendering context, calling a GL function like |
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| 34 | * glBegin() is a no-op. Apps should never normally do this. So as a |
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| 35 | * debugging aid, each of the no-op functions will emit a warning to |
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| 36 | * stderr if the MESA_DEBUG or LIBGL_DEBUG env var is set. |
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| 37 | */ |
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| 38 | |||
| 39 | |||
| 40 | |||
| 41 | #include "glapi/glapi_priv.h" |
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| 42 | |||
| 43 | |||
| 44 | void |
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| 45 | _glapi_noop_enable_warnings(unsigned char enable) |
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| 46 | { |
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| 47 | } |
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| 48 | |||
| 49 | void |
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| 50 | _glapi_set_warning_func(_glapi_proc func) |
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| 51 | { |
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| 52 | } |
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| 53 | |||
| 54 | /* |
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| 55 | * When GLAPIENTRY is __stdcall (i.e. Windows), the stack is popped by the |
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| 56 | * callee making the number/type of arguments significant. |
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| 57 | */ |
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| 58 | #if defined(_WIN32) || defined(DEBUG) |
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| 59 | |||
| 60 | /** |
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| 61 | * Called by each of the no-op GL entrypoints. |
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| 62 | */ |
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| 63 | static int |
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| 64 | Warn(const char *func) |
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| 65 | { |
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| 66 | #if defined(DEBUG) && !defined(_WIN32_WCE) |
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| 67 | if (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG")) { |
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| 68 | fprintf(stderr, "GL User Error: gl%s called without a rendering context\n", |
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| 69 | func); |
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| 70 | } |
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| 71 | #endif |
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| 72 | return 0; |
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| 73 | } |
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| 74 | |||
| 75 | |||
| 76 | /** |
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| 77 | * This is called if the user somehow calls an unassigned GL dispatch function. |
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| 78 | */ |
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| 79 | static GLint |
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| 80 | NoOpUnused(void) |
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| 81 | { |
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| 82 | return Warn(" function"); |
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| 83 | } |
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| 84 | |||
| 85 | /* |
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| 86 | * Defines for the glapitemp.h functions. |
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| 87 | */ |
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| 88 | #define KEYWORD1 static |
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| 89 | #define KEYWORD1_ALT static |
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| 90 | #define KEYWORD2 GLAPIENTRY |
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| 91 | #define NAME(func) NoOp##func |
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| 92 | #define DISPATCH(func, args, msg) Warn(#func); |
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| 93 | #define RETURN_DISPATCH(func, args, msg) Warn(#func); return 0 |
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| 94 | |||
| 95 | |||
| 96 | /* |
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| 97 | * Defines for the table of no-op entry points. |
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| 98 | */ |
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| 99 | #define TABLE_ENTRY(name) (_glapi_proc) NoOp##name |
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| 100 | |||
| 101 | #else |
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| 102 | |||
| 103 | static int |
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| 104 | NoOpGeneric(void) |
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| 105 | { |
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| 106 | #if !defined(_WIN32_WCE) |
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| 107 | if (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG")) { |
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| 108 | fprintf(stderr, "GL User Error: calling GL function without a rendering context\n"); |
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| 109 | } |
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| 110 | #endif |
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| 111 | return 0; |
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| 112 | } |
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| 113 | |||
| 114 | #define TABLE_ENTRY(name) (_glapi_proc) NoOpGeneric |
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| 115 | |||
| 116 | #endif |
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| 117 | |||
| 118 | #define DISPATCH_TABLE_NAME __glapi_noop_table |
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| 119 | #define UNUSED_TABLE_NAME __unused_noop_functions |
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| 120 | |||
| 121 | #include "glapi/glapitemp.h" |