2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
31 #include "extensions.h"
36 * Return the string for a glGetString(GL_SHADING_LANGUAGE_VERSION) query.
38 static const GLubyte
*
39 shading_language_version(struct gl_context
*ctx
)
42 case API_OPENGL_COMPAT
:
44 if (!ctx
->Extensions
.ARB_shader_objects
) {
45 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetString");
46 return (const GLubyte
*) 0;
49 switch (ctx
->Const
.GLSLVersion
) {
51 return (const GLubyte
*) "1.10";
53 return (const GLubyte
*) "1.20";
55 return (const GLubyte
*) "1.30";
57 return (const GLubyte
*) "1.40";
59 return (const GLubyte
*) "1.50";
61 return (const GLubyte
*) "3.30";
63 return (const GLubyte
*) "4.00";
65 return (const GLubyte
*) "4.10";
67 return (const GLubyte
*) "4.20";
70 "Invalid GLSL version in shading_language_version()");
71 return (const GLubyte
*) 0;
76 return (ctx
->Version
< 30)
77 ? (const GLubyte
*) "OpenGL ES GLSL ES 1.0.16"
78 : (const GLubyte
*) "OpenGL ES GLSL ES 3.0";
84 _mesa_problem(ctx
, "Unexpected API value in shading_language_version()");
85 return (const GLubyte
*) 0;
91 * Query string-valued state. The return value should _not_ be freed by
94 * \param name the state variable to query.
98 * Tries to get the string from dd_function_table::GetString, otherwise returns
99 * the hardcoded strings.
101 const GLubyte
* GLAPIENTRY
102 _mesa_GetString( GLenum name
)
104 GET_CURRENT_CONTEXT(ctx
);
105 static const char *vendor
= "Brian Paul";
106 static const char *renderer
= "Mesa";
111 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
113 /* this is a required driver function */
114 assert(ctx
->Driver
.GetString
);
116 /* Give the driver the chance to handle this query */
117 const GLubyte
*str
= (*ctx
->Driver
.GetString
)(ctx
, name
);
124 return (const GLubyte
*) vendor
;
126 return (const GLubyte
*) renderer
;
128 return (const GLubyte
*) ctx
->VersionString
;
130 if (ctx
->API
== API_OPENGL_CORE
) {
131 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetString(GL_EXTENSIONS)");
132 return (const GLubyte
*) 0;
134 return (const GLubyte
*) ctx
->Extensions
.String
;
135 case GL_SHADING_LANGUAGE_VERSION
:
136 if (ctx
->API
== API_OPENGLES
)
138 return shading_language_version(ctx
);
139 case GL_PROGRAM_ERROR_STRING_ARB
:
140 if (ctx
->API
== API_OPENGL_COMPAT
&&
141 (ctx
->Extensions
.ARB_fragment_program
||
142 ctx
->Extensions
.ARB_vertex_program
)) {
143 return (const GLubyte
*) ctx
->Program
.ErrorString
;
150 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
151 return (const GLubyte
*) 0;
158 const GLubyte
* GLAPIENTRY
159 _mesa_GetStringi(GLenum name
, GLuint index
)
161 GET_CURRENT_CONTEXT(ctx
);
166 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
170 if (index
>= _mesa_get_extension_count(ctx
)) {
171 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetStringi(index=%u)", index
);
172 return (const GLubyte
*) 0;
174 return _mesa_get_enabled_extension(ctx
, index
);
176 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
177 return (const GLubyte
*) 0;
184 * Return pointer-valued state, such as a vertex array pointer.
186 * \param pname names state to be queried
187 * \param params returns the pointer value
189 * \sa glGetPointerv().
191 * Tries to get the specified pointer via dd_function_table::GetPointerv,
192 * otherwise gets the specified pointer from the current context.
195 _mesa_GetPointerv( GLenum pname
, GLvoid
**params
)
197 GET_CURRENT_CONTEXT(ctx
);
198 const GLuint clientUnit
= ctx
->Array
.ActiveTexture
;
203 if (MESA_VERBOSE
& VERBOSE_API
)
204 _mesa_debug(ctx
, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname
));
207 case GL_VERTEX_ARRAY_POINTER
:
208 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
210 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POS
].Ptr
;
212 case GL_NORMAL_ARRAY_POINTER
:
213 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
215 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Ptr
;
217 case GL_COLOR_ARRAY_POINTER
:
218 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
220 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Ptr
;
222 case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT
:
223 if (ctx
->API
!= API_OPENGL_COMPAT
)
225 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR1
].Ptr
;
227 case GL_FOG_COORDINATE_ARRAY_POINTER_EXT
:
228 if (ctx
->API
!= API_OPENGL_COMPAT
)
230 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_FOG
].Ptr
;
232 case GL_INDEX_ARRAY_POINTER
:
233 if (ctx
->API
!= API_OPENGL_COMPAT
)
235 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR_INDEX
].Ptr
;
237 case GL_TEXTURE_COORD_ARRAY_POINTER
:
238 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
240 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(clientUnit
)].Ptr
;
242 case GL_EDGE_FLAG_ARRAY_POINTER
:
243 if (ctx
->API
!= API_OPENGL_COMPAT
)
245 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_EDGEFLAG
].Ptr
;
247 case GL_FEEDBACK_BUFFER_POINTER
:
248 if (ctx
->API
!= API_OPENGL_COMPAT
)
250 *params
= ctx
->Feedback
.Buffer
;
252 case GL_SELECTION_BUFFER_POINTER
:
253 if (ctx
->API
!= API_OPENGL_COMPAT
)
255 *params
= ctx
->Select
.Buffer
;
257 case GL_POINT_SIZE_ARRAY_POINTER_OES
:
258 if (ctx
->API
!= API_OPENGLES
)
260 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].Ptr
;
262 case GL_DEBUG_CALLBACK_FUNCTION_ARB
:
263 if (!_mesa_is_desktop_gl(ctx
))
265 *params
= (GLvoid
*) ctx
->Debug
.Callback
;
267 case GL_DEBUG_CALLBACK_USER_PARAM_ARB
:
268 if (!_mesa_is_desktop_gl(ctx
))
270 *params
= ctx
->Debug
.CallbackData
;
279 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetPointerv" );
285 * Returns the current GL error code, or GL_NO_ERROR.
286 * \return current error code
288 * Returns __struct gl_contextRec::ErrorValue.
291 _mesa_GetError( void )
293 GET_CURRENT_CONTEXT(ctx
);
294 GLenum e
= ctx
->ErrorValue
;
295 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
297 if (MESA_VERBOSE
& VERBOSE_API
)
298 _mesa_debug(ctx
, "glGetError <-- %s\n", _mesa_lookup_enum_by_nr(e
));
300 ctx
->ErrorValue
= (GLenum
) GL_NO_ERROR
;
301 ctx
->ErrorDebugCount
= 0;
306 * Returns an error code specified by GL_ARB_robustness, or GL_NO_ERROR.
307 * \return current context status
310 _mesa_GetGraphicsResetStatusARB( void )
312 GET_CURRENT_CONTEXT(ctx
);
313 GLenum status
= ctx
->ResetStatus
;
315 if (MESA_VERBOSE
& VERBOSE_API
)
316 _mesa_debug(ctx
, "glGetGraphicsResetStatusARB"
317 "(always returns GL_NO_ERROR)\n");