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"
32 #include "mfeatures.h"
37 * Return the string for a glGetString(GL_SHADING_LANGUAGE_VERSION) query.
39 static const GLubyte
*
40 shading_language_version(struct gl_context
*ctx
)
45 if (!ctx
->Extensions
.ARB_shader_objects
) {
46 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetString");
47 return (const GLubyte
*) 0;
50 switch (ctx
->Const
.GLSLVersion
) {
52 return (const GLubyte
*) "1.10";
54 return (const GLubyte
*) "1.20";
56 return (const GLubyte
*) "1.30";
58 return (const GLubyte
*) "1.40";
60 return (const GLubyte
*) "1.50";
62 return (const GLubyte
*) "3.30";
64 return (const GLubyte
*) "4.00";
66 return (const GLubyte
*) "4.10";
68 return (const GLubyte
*) "4.20";
71 "Invalid GLSL version in shading_language_version()");
72 return (const GLubyte
*) 0;
77 return (const GLubyte
*) "OpenGL ES GLSL ES 1.0.16";
83 _mesa_problem(ctx
, "Unexpected API value in shading_language_version()");
84 return (const GLubyte
*) 0;
90 * Query string-valued state. The return value should _not_ be freed by
93 * \param name the state variable to query.
97 * Tries to get the string from dd_function_table::GetString, otherwise returns
98 * the hardcoded strings.
100 const GLubyte
* GLAPIENTRY
101 _mesa_GetString( GLenum name
)
103 GET_CURRENT_CONTEXT(ctx
);
104 static const char *vendor
= "Brian Paul";
105 static const char *renderer
= "Mesa";
110 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
112 /* this is a required driver function */
113 assert(ctx
->Driver
.GetString
);
115 /* Give the driver the chance to handle this query */
116 const GLubyte
*str
= (*ctx
->Driver
.GetString
)(ctx
, name
);
123 return (const GLubyte
*) vendor
;
125 return (const GLubyte
*) renderer
;
127 return (const GLubyte
*) ctx
->VersionString
;
129 if (ctx
->API
== API_OPENGL_CORE
) {
130 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetString(GL_EXTENSIONS)");
131 return (const GLubyte
*) 0;
133 return (const GLubyte
*) ctx
->Extensions
.String
;
134 #if FEATURE_ARB_shading_language_100 || FEATURE_ES2
135 case GL_SHADING_LANGUAGE_VERSION
:
136 if (ctx
->API
== API_OPENGLES
)
138 return shading_language_version(ctx
);
140 #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program || \
141 FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
142 case GL_PROGRAM_ERROR_STRING_NV
:
143 if (ctx
->API
== API_OPENGL
&&
144 (ctx
->Extensions
.NV_fragment_program
||
145 ctx
->Extensions
.ARB_fragment_program
||
146 ctx
->Extensions
.NV_vertex_program
||
147 ctx
->Extensions
.ARB_vertex_program
)) {
148 return (const GLubyte
*) ctx
->Program
.ErrorString
;
156 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
157 return (const GLubyte
*) 0;
164 const GLubyte
* GLAPIENTRY
165 _mesa_GetStringi(GLenum name
, GLuint index
)
167 GET_CURRENT_CONTEXT(ctx
);
172 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
176 if (index
>= _mesa_get_extension_count(ctx
)) {
177 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetStringi(index=%u)", index
);
178 return (const GLubyte
*) 0;
180 return _mesa_get_enabled_extension(ctx
, index
);
182 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
183 return (const GLubyte
*) 0;
190 * Return pointer-valued state, such as a vertex array pointer.
192 * \param pname names state to be queried
193 * \param params returns the pointer value
195 * \sa glGetPointerv().
197 * Tries to get the specified pointer via dd_function_table::GetPointerv,
198 * otherwise gets the specified pointer from the current context.
201 _mesa_GetPointerv( GLenum pname
, GLvoid
**params
)
203 GET_CURRENT_CONTEXT(ctx
);
204 const GLuint clientUnit
= ctx
->Array
.ActiveTexture
;
205 ASSERT_OUTSIDE_BEGIN_END(ctx
);
210 if (MESA_VERBOSE
& VERBOSE_API
)
211 _mesa_debug(ctx
, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname
));
214 case GL_VERTEX_ARRAY_POINTER
:
215 if (ctx
->API
!= API_OPENGL
&& ctx
->API
!= API_OPENGLES
)
217 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POS
].Ptr
;
219 case GL_NORMAL_ARRAY_POINTER
:
220 if (ctx
->API
!= API_OPENGL
&& ctx
->API
!= API_OPENGLES
)
222 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Ptr
;
224 case GL_COLOR_ARRAY_POINTER
:
225 if (ctx
->API
!= API_OPENGL
&& ctx
->API
!= API_OPENGLES
)
227 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Ptr
;
229 case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT
:
230 if (ctx
->API
!= API_OPENGL
)
232 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR1
].Ptr
;
234 case GL_FOG_COORDINATE_ARRAY_POINTER_EXT
:
235 if (ctx
->API
!= API_OPENGL
)
237 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_FOG
].Ptr
;
239 case GL_INDEX_ARRAY_POINTER
:
240 if (ctx
->API
!= API_OPENGL
)
242 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR_INDEX
].Ptr
;
244 case GL_TEXTURE_COORD_ARRAY_POINTER
:
245 if (ctx
->API
!= API_OPENGL
&& ctx
->API
!= API_OPENGLES
)
247 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(clientUnit
)].Ptr
;
249 case GL_EDGE_FLAG_ARRAY_POINTER
:
250 if (ctx
->API
!= API_OPENGL
)
252 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_EDGEFLAG
].Ptr
;
254 case GL_FEEDBACK_BUFFER_POINTER
:
255 if (ctx
->API
!= API_OPENGL
)
257 *params
= ctx
->Feedback
.Buffer
;
259 case GL_SELECTION_BUFFER_POINTER
:
260 if (ctx
->API
!= API_OPENGL
)
262 *params
= ctx
->Select
.Buffer
;
264 #if FEATURE_point_size_array
265 case GL_POINT_SIZE_ARRAY_POINTER_OES
:
266 if (ctx
->API
!= API_OPENGLES
)
268 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].Ptr
;
271 case GL_DEBUG_CALLBACK_FUNCTION_ARB
:
272 if (!_mesa_is_desktop_gl(ctx
))
274 *params
= (GLvoid
*) ctx
->Debug
.Callback
;
276 case GL_DEBUG_CALLBACK_USER_PARAM_ARB
:
277 if (!_mesa_is_desktop_gl(ctx
))
279 *params
= ctx
->Debug
.CallbackData
;
288 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetPointerv" );
294 * Returns the current GL error code, or GL_NO_ERROR.
295 * \return current error code
297 * Returns __struct gl_contextRec::ErrorValue.
300 _mesa_GetError( void )
302 GET_CURRENT_CONTEXT(ctx
);
303 GLenum e
= ctx
->ErrorValue
;
304 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
306 if (MESA_VERBOSE
& VERBOSE_API
)
307 _mesa_debug(ctx
, "glGetError <-- %s\n", _mesa_lookup_enum_by_nr(e
));
309 ctx
->ErrorValue
= (GLenum
) GL_NO_ERROR
;
310 ctx
->ErrorDebugCount
= 0;
315 * Returns an error code specified by GL_ARB_robustness, or GL_NO_ERROR.
316 * \return current context status
319 _mesa_GetGraphicsResetStatusARB( void )
321 GET_CURRENT_CONTEXT(ctx
);
322 GLenum status
= ctx
->ResetStatus
;
324 if (MESA_VERBOSE
& VERBOSE_API
)
325 _mesa_debug(ctx
, "glGetGraphicsResetStatusARB"
326 "(always returns GL_NO_ERROR)\n");