2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 #include "extensions.h"
36 * Query string-valued state. The return value should _not_ be freed by
39 * \param name the state variable to query.
43 * Tries to get the string from dd_function_table::GetString, otherwise returns
44 * the hardcoded strings.
46 const GLubyte
* GLAPIENTRY
47 _mesa_GetString( GLenum name
)
49 GET_CURRENT_CONTEXT(ctx
);
50 static const char *vendor
= "Brian Paul";
51 static const char *renderer
= "Mesa";
56 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
58 /* this is a required driver function */
59 assert(ctx
->Driver
.GetString
);
61 /* Give the driver the chance to handle this query */
62 const GLubyte
*str
= (*ctx
->Driver
.GetString
)(ctx
, name
);
69 return (const GLubyte
*) vendor
;
71 return (const GLubyte
*) renderer
;
73 return (const GLubyte
*) ctx
->VersionString
;
75 if (!ctx
->Extensions
.String
)
76 ctx
->Extensions
.String
= _mesa_make_extension_string(ctx
);
77 return (const GLubyte
*) ctx
->Extensions
.String
;
78 #if FEATURE_ARB_shading_language_100
79 case GL_SHADING_LANGUAGE_VERSION_ARB
:
80 if (ctx
->Extensions
.ARB_shading_language_120
)
81 return (const GLubyte
*) "1.20";
82 else if (ctx
->Extensions
.ARB_shading_language_100
)
83 return (const GLubyte
*) "1.10";
86 #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program || \
87 FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
88 case GL_PROGRAM_ERROR_STRING_NV
:
89 if (ctx
->Extensions
.NV_fragment_program
||
90 ctx
->Extensions
.ARB_fragment_program
||
91 ctx
->Extensions
.NV_vertex_program
||
92 ctx
->Extensions
.ARB_vertex_program
) {
93 return (const GLubyte
*) ctx
->Program
.ErrorString
;
97 #if FEATURE_ARB_shading_language_100
101 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
102 return (const GLubyte
*) 0;
110 const GLubyte
* GLAPIENTRY
111 _mesa_GetStringi(GLenum name
, GLuint index
)
113 GET_CURRENT_CONTEXT(ctx
);
118 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
122 if (index
>= _mesa_get_extension_count(ctx
)) {
123 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetStringi(index=%u)", index
);
124 return (const GLubyte
*) 0;
126 return _mesa_get_enabled_extension(ctx
, index
);
128 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
129 return (const GLubyte
*) 0;
136 * Return pointer-valued state, such as a vertex array pointer.
138 * \param pname names state to be queried
139 * \param params returns the pointer value
141 * \sa glGetPointerv().
143 * Tries to get the specified pointer via dd_function_table::GetPointerv,
144 * otherwise gets the specified pointer from the current context.
147 _mesa_GetPointerv( GLenum pname
, GLvoid
**params
)
149 GET_CURRENT_CONTEXT(ctx
);
150 const GLuint clientUnit
= ctx
->Array
.ActiveTexture
;
151 ASSERT_OUTSIDE_BEGIN_END(ctx
);
156 if (MESA_VERBOSE
& VERBOSE_API
)
157 _mesa_debug(ctx
, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname
));
159 if (ctx
->Driver
.GetPointerv
160 && (*ctx
->Driver
.GetPointerv
)(ctx
, pname
, params
))
164 case GL_VERTEX_ARRAY_POINTER
:
165 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->Vertex
.Ptr
;
167 case GL_NORMAL_ARRAY_POINTER
:
168 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->Normal
.Ptr
;
170 case GL_COLOR_ARRAY_POINTER
:
171 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->Color
.Ptr
;
173 case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT
:
174 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->SecondaryColor
.Ptr
;
176 case GL_FOG_COORDINATE_ARRAY_POINTER_EXT
:
177 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->FogCoord
.Ptr
;
179 case GL_INDEX_ARRAY_POINTER
:
180 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->Index
.Ptr
;
182 case GL_TEXTURE_COORD_ARRAY_POINTER
:
183 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->TexCoord
[clientUnit
].Ptr
;
185 case GL_EDGE_FLAG_ARRAY_POINTER
:
186 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->EdgeFlag
.Ptr
;
188 case GL_FEEDBACK_BUFFER_POINTER
:
189 *params
= ctx
->Feedback
.Buffer
;
191 case GL_SELECTION_BUFFER_POINTER
:
192 *params
= ctx
->Select
.Buffer
;
195 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetPointerv" );
202 * Returns the current GL error code, or GL_NO_ERROR.
203 * \return current error code
205 * Returns __GLcontextRec::ErrorValue.
208 _mesa_GetError( void )
210 GET_CURRENT_CONTEXT(ctx
);
211 GLenum e
= ctx
->ErrorValue
;
212 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
214 if (MESA_VERBOSE
& VERBOSE_API
)
215 _mesa_debug(ctx
, "glGetError <-- %s\n", _mesa_lookup_enum_by_nr(e
));
217 ctx
->ErrorValue
= (GLenum
) GL_NO_ERROR
;
218 ctx
->ErrorDebugCount
= 0;