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.
31 #include "extensions.h"
35 * Query string-valued state. The return value should _not_ be freed by
38 * \param name the state variable to query.
42 * Tries to get the string from dd_function_table::GetString, otherwise returns
43 * the hardcoded strings.
45 const GLubyte
* GLAPIENTRY
46 _mesa_GetString( GLenum name
)
48 GET_CURRENT_CONTEXT(ctx
);
49 static const char *vendor
= "Brian Paul";
50 static const char *renderer
= "Mesa";
55 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
57 /* this is a required driver function */
58 assert(ctx
->Driver
.GetString
);
60 /* Give the driver the chance to handle this query */
61 const GLubyte
*str
= (*ctx
->Driver
.GetString
)(ctx
, name
);
68 return (const GLubyte
*) vendor
;
70 return (const GLubyte
*) renderer
;
72 return (const GLubyte
*) ctx
->VersionString
;
74 if (!ctx
->Extensions
.String
)
75 ctx
->Extensions
.String
= _mesa_make_extension_string(ctx
);
76 return (const GLubyte
*) ctx
->Extensions
.String
;
77 #if FEATURE_ARB_shading_language_100
78 case GL_SHADING_LANGUAGE_VERSION_ARB
:
79 if (ctx
->Extensions
.ARB_shading_language_120
)
80 return (const GLubyte
*) "1.20";
81 else if (ctx
->Extensions
.ARB_shading_language_100
)
82 return (const GLubyte
*) "1.10";
85 #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program || \
86 FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
87 case GL_PROGRAM_ERROR_STRING_NV
:
88 if (ctx
->Extensions
.NV_fragment_program
||
89 ctx
->Extensions
.ARB_fragment_program
||
90 ctx
->Extensions
.NV_vertex_program
||
91 ctx
->Extensions
.ARB_vertex_program
) {
92 return (const GLubyte
*) ctx
->Program
.ErrorString
;
96 #if FEATURE_ARB_shading_language_100
100 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
101 return (const GLubyte
*) 0;
109 const GLubyte
* GLAPIENTRY
110 _mesa_GetStringi(GLenum name
, GLuint index
)
112 GET_CURRENT_CONTEXT(ctx
);
117 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
121 if (index
>= _mesa_get_extension_count(ctx
)) {
122 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetStringi(index=%u)", index
);
123 return (const GLubyte
*) 0;
125 return _mesa_get_enabled_extension(ctx
, index
);
127 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
128 return (const GLubyte
*) 0;
135 * Return pointer-valued state, such as a vertex array pointer.
137 * \param pname names state to be queried
138 * \param params returns the pointer value
140 * \sa glGetPointerv().
142 * Tries to get the specified pointer via dd_function_table::GetPointerv,
143 * otherwise gets the specified pointer from the current context.
146 _mesa_GetPointerv( GLenum pname
, GLvoid
**params
)
148 GET_CURRENT_CONTEXT(ctx
);
149 const GLuint clientUnit
= ctx
->Array
.ActiveTexture
;
150 ASSERT_OUTSIDE_BEGIN_END(ctx
);
155 if (MESA_VERBOSE
& VERBOSE_API
)
156 _mesa_debug(ctx
, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname
));
158 if (ctx
->Driver
.GetPointerv
159 && (*ctx
->Driver
.GetPointerv
)(ctx
, pname
, params
))
163 case GL_VERTEX_ARRAY_POINTER
:
164 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->Vertex
.Ptr
;
166 case GL_NORMAL_ARRAY_POINTER
:
167 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->Normal
.Ptr
;
169 case GL_COLOR_ARRAY_POINTER
:
170 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->Color
.Ptr
;
172 case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT
:
173 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->SecondaryColor
.Ptr
;
175 case GL_FOG_COORDINATE_ARRAY_POINTER_EXT
:
176 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->FogCoord
.Ptr
;
178 case GL_INDEX_ARRAY_POINTER
:
179 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->Index
.Ptr
;
181 case GL_TEXTURE_COORD_ARRAY_POINTER
:
182 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->TexCoord
[clientUnit
].Ptr
;
184 case GL_EDGE_FLAG_ARRAY_POINTER
:
185 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->EdgeFlag
.Ptr
;
187 case GL_FEEDBACK_BUFFER_POINTER
:
188 *params
= ctx
->Feedback
.Buffer
;
190 case GL_SELECTION_BUFFER_POINTER
:
191 *params
= ctx
->Select
.Buffer
;
193 #if FEATURE_point_size_array
194 case GL_POINT_SIZE_ARRAY_POINTER_OES
:
195 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->PointSize
.Ptr
;
199 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetPointerv" );
206 * Returns the current GL error code, or GL_NO_ERROR.
207 * \return current error code
209 * Returns __GLcontextRec::ErrorValue.
212 _mesa_GetError( void )
214 GET_CURRENT_CONTEXT(ctx
);
215 GLenum e
= ctx
->ErrorValue
;
216 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
218 if (MESA_VERBOSE
& VERBOSE_API
)
219 _mesa_debug(ctx
, "glGetError <-- %s\n", _mesa_lookup_enum_by_nr(e
));
221 ctx
->ErrorValue
= (GLenum
) GL_NO_ERROR
;
222 ctx
->ErrorDebugCount
= 0;