1 /* $Id: context.h,v 1.25 2001/03/12 00:48:37 gareth Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
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14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
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19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
37 * There are three Mesa datatypes which are meant to be used by device
39 * GLcontext: this contains the Mesa rendering state
40 * GLvisual: this describes the color buffer (rgb vs. ci), whether
41 * or not there's a depth buffer, stencil buffer, etc.
42 * GLframebuffer: contains pointers to the depth buffer, stencil
43 * buffer, accum buffer and alpha buffers.
45 * These types should be encapsulated by corresponding device driver
46 * datatypes. See xmesa.h and xmesaP.h for an example.
48 * In OOP terms, GLcontext, GLvisual, and GLframebuffer are base classes
49 * which the device driver must derive from.
51 * The following functions create and destroy these datatypes.
56 * Create/destroy a GLvisual. A GLvisual is like a GLX visual. It describes
57 * the colorbuffer, depth buffer, stencil buffer and accum buffer which will
58 * be used by the GL context and framebuffer.
61 _mesa_create_visual( GLboolean rgbFlag
,
78 _mesa_initialize_visual( GLvisual
*v
,
96 _mesa_destroy_visual( GLvisual
*vis
);
101 * Create/destroy a GLframebuffer. A GLframebuffer is like a GLX drawable.
102 * It bundles up the depth buffer, stencil buffer and accum buffers into a
105 extern GLframebuffer
*
106 _mesa_create_framebuffer( const GLvisual
*visual
,
107 GLboolean softwareDepth
,
108 GLboolean softwareStencil
,
109 GLboolean softwareAccum
,
110 GLboolean softwareAlpha
);
113 _mesa_initialize_framebuffer( GLframebuffer
*fb
,
114 const GLvisual
*visual
,
115 GLboolean softwareDepth
,
116 GLboolean softwareStencil
,
117 GLboolean softwareAccum
,
118 GLboolean softwareAlpha
);
121 _mesa_destroy_framebuffer( GLframebuffer
*buffer
);
126 * Create/destroy a GLcontext. A GLcontext is like a GLX context. It
127 * contains the rendering state.
130 _mesa_create_context( const GLvisual
*visual
,
131 GLcontext
*share_list
,
136 _mesa_initialize_context( GLcontext
*ctx
,
137 const GLvisual
*visual
,
138 GLcontext
*share_list
,
143 _mesa_free_context_data( GLcontext
*ctx
);
146 _mesa_destroy_context( GLcontext
*ctx
);
150 _mesa_context_initialize( GLcontext
*ctx
);
154 _mesa_copy_context(const GLcontext
*src
, GLcontext
*dst
, GLuint mask
);
158 _mesa_make_current( GLcontext
*ctx
, GLframebuffer
*buffer
);
162 _mesa_make_current2( GLcontext
*ctx
, GLframebuffer
*drawBuffer
,
163 GLframebuffer
*readBuffer
);
167 _mesa_get_current_context(void);
172 * Macros for fetching current context.
176 #define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) (_glapi_Context ? _glapi_Context : _glapi_get_context())
180 #define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_Context
187 _mesa_swapbuffers(GLcontext
*ctx
);
190 extern struct _glapi_table
*
191 _mesa_get_dispatch(GLcontext
*ctx
);
200 _mesa_problem( const GLcontext
*ctx
, const char *s
);
203 _mesa_warning( const GLcontext
*ctx
, const char *s
);
206 _mesa_error( GLcontext
*ctx
, GLenum error
, const char *s
);
209 _mesa_compile_error( GLcontext
*ctx
, GLenum error
, const char *s
);
214 _mesa_Finish( void );
222 _mesa_read_config_file(GLcontext
*ctx
);
225 _mesa_register_config_var(const char *name
,
226 void (*notify
)( const char *, int ));