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/* |
* Mesa 3-D graphics library |
* |
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
* |
* Permission is hereby granted, free of charge, to any person obtaining a |
* copy of this software and associated documentation files (the "Software"), |
* to deal in the Software without restriction, including without limitation |
* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
* and/or sell copies of the Software, and to permit persons to whom the |
* Software is furnished to do so, subject to the following conditions: |
* |
* The above copyright notice and this permission notice shall be included |
* in all copies or substantial portions of the Software. |
* |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
* OTHER DEALINGS IN THE SOFTWARE. |
*/ |
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/** |
* \mainpage Mesa GL API Module |
* |
* \section GLAPIIntroduction Introduction |
* |
* The Mesa GL API module is responsible for dispatching all the |
* gl*() functions. All GL functions are dispatched by jumping through |
* the current dispatch table (basically a struct full of function |
* pointers.) |
* |
* A per-thread current dispatch table and per-thread current context |
* pointer are managed by this module too. |
* |
* This module is intended to be non-Mesa-specific so it can be used |
* with the X/DRI libGL also. |
*/ |
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#ifndef _GLAPI_H |
#define _GLAPI_H |
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#include "util/macros.h" |
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#ifdef __cplusplus |
extern "C" { |
#endif |
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#ifdef _GLAPI_NO_EXPORTS |
# define _GLAPI_EXPORT |
#else /* _GLAPI_NO_EXPORTS */ |
# ifdef _WIN32 |
# ifdef _GLAPI_DLL_EXPORTS |
# define _GLAPI_EXPORT __declspec(dllexport) |
# else |
# define _GLAPI_EXPORT __declspec(dllimport) |
# endif |
# elif defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) |
# define _GLAPI_EXPORT __attribute__((visibility("default"))) |
# else |
# define _GLAPI_EXPORT |
# endif |
#endif /* _GLAPI_NO_EXPORTS */ |
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/* Is this needed? It is incomplete anyway. */ |
#ifdef USE_MGL_NAMESPACE |
#define _glapi_set_dispatch _mglapi_set_dispatch |
#define _glapi_get_dispatch _mglapi_get_dispatch |
#define _glapi_set_context _mglapi_set_context |
#define _glapi_get_context _mglapi_get_context |
#define _glapi_Dispatch _mglapi_Dispatch |
#define _glapi_Context _mglapi_Context |
#endif |
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typedef void (*_glapi_proc)(void); |
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typedef void (*_glapi_nop_handler_proc)(const char *name); |
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struct _glapi_table; |
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#if defined (GLX_USE_TLS) |
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_GLAPI_EXPORT extern __thread struct _glapi_table * _glapi_tls_Dispatch |
__attribute__((tls_model("initial-exec"))); |
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_GLAPI_EXPORT extern __thread void * _glapi_tls_Context |
__attribute__((tls_model("initial-exec"))); |
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_GLAPI_EXPORT extern const struct _glapi_table *_glapi_Dispatch; |
_GLAPI_EXPORT extern const void *_glapi_Context; |
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# define GET_DISPATCH() _glapi_tls_Dispatch |
# define GET_CURRENT_CONTEXT(C) struct gl_context *C = (struct gl_context *) _glapi_tls_Context |
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#else |
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_GLAPI_EXPORT extern struct _glapi_table *_glapi_Dispatch; |
_GLAPI_EXPORT extern void *_glapi_Context; |
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#define GET_DISPATCH() \ |
(likely(_glapi_Dispatch) ? _glapi_Dispatch : _glapi_get_dispatch()) |
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#define GET_CURRENT_CONTEXT(C) struct gl_context *C = (struct gl_context *) \ |
(likely(_glapi_Context) ? _glapi_Context : _glapi_get_context()) |
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#endif /* defined (GLX_USE_TLS) */ |
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void |
_glapi_destroy_multithread(void); |
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_GLAPI_EXPORT void |
_glapi_check_multithread(void); |
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_GLAPI_EXPORT void |
_glapi_set_context(void *context); |
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_GLAPI_EXPORT void * |
_glapi_get_context(void); |
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_GLAPI_EXPORT void |
_glapi_set_dispatch(struct _glapi_table *dispatch); |
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_GLAPI_EXPORT struct _glapi_table * |
_glapi_get_dispatch(void); |
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_GLAPI_EXPORT unsigned int |
_glapi_get_dispatch_table_size(void); |
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_GLAPI_EXPORT int |
_glapi_add_dispatch( const char * const * function_names, |
const char * parameter_signature ); |
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_GLAPI_EXPORT int |
_glapi_get_proc_offset(const char *funcName); |
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_GLAPI_EXPORT _glapi_proc |
_glapi_get_proc_address(const char *funcName); |
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_GLAPI_EXPORT const char * |
_glapi_get_proc_name(unsigned int offset); |
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_GLAPI_EXPORT struct _glapi_table * |
_glapi_create_table_from_handle(void *handle, const char *symbol_prefix); |
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_GLAPI_EXPORT void |
_glapi_set_nop_handler(_glapi_nop_handler_proc func); |
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/** Return pointer to new dispatch table filled with no-op functions */ |
_GLAPI_EXPORT struct _glapi_table * |
_glapi_new_nop_table(unsigned num_entries); |
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/** Deprecated function */ |
_GLAPI_EXPORT unsigned long |
_glthread_GetID(void); |
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/* |
* These stubs are kept so that the old DRI drivers still load. |
*/ |
_GLAPI_EXPORT void |
_glapi_noop_enable_warnings(unsigned char enable); |
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_GLAPI_EXPORT void |
_glapi_set_warning_func(_glapi_proc func); |
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#ifdef __cplusplus |
} |
#endif |
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#endif /* _GLAPI_H */ |