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
)
43 case API_OPENGL_COMPAT
:
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 (ctx
->Version
< 30)
78 ? (const GLubyte
*) "OpenGL ES GLSL ES 1.0.16"
79 : (const GLubyte
*) "OpenGL ES GLSL ES 3.0";
85 _mesa_problem(ctx
, "Unexpected API value in shading_language_version()");
86 return (const GLubyte
*) 0;
92 * Query string-valued state. The return value should _not_ be freed by
95 * \param name the state variable to query.
99 * Tries to get the string from dd_function_table::GetString, otherwise returns
100 * the hardcoded strings.
102 const GLubyte
* GLAPIENTRY
103 _mesa_GetString( GLenum name
)
105 GET_CURRENT_CONTEXT(ctx
);
106 static const char *vendor
= "Brian Paul";
107 static const char *renderer
= "Mesa";
112 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
114 /* this is a required driver function */
115 assert(ctx
->Driver
.GetString
);
117 /* Give the driver the chance to handle this query */
118 const GLubyte
*str
= (*ctx
->Driver
.GetString
)(ctx
, name
);
125 return (const GLubyte
*) vendor
;
127 return (const GLubyte
*) renderer
;
129 return (const GLubyte
*) ctx
->VersionString
;
131 if (ctx
->API
== API_OPENGL_CORE
) {
132 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetString(GL_EXTENSIONS)");
133 return (const GLubyte
*) 0;
135 return (const GLubyte
*) ctx
->Extensions
.String
;
136 case GL_SHADING_LANGUAGE_VERSION
:
137 if (ctx
->API
== API_OPENGLES
)
139 return shading_language_version(ctx
);
140 case GL_PROGRAM_ERROR_STRING_NV
:
141 if (ctx
->API
== API_OPENGL_COMPAT
&&
142 (ctx
->Extensions
.ARB_fragment_program
||
143 ctx
->Extensions
.ARB_vertex_program
)) {
144 return (const GLubyte
*) ctx
->Program
.ErrorString
;
151 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
152 return (const GLubyte
*) 0;
159 const GLubyte
* GLAPIENTRY
160 _mesa_GetStringi(GLenum name
, GLuint index
)
162 GET_CURRENT_CONTEXT(ctx
);
167 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
171 if (index
>= _mesa_get_extension_count(ctx
)) {
172 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetStringi(index=%u)", index
);
173 return (const GLubyte
*) 0;
175 return _mesa_get_enabled_extension(ctx
, index
);
177 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
178 return (const GLubyte
*) 0;
185 * Return pointer-valued state, such as a vertex array pointer.
187 * \param pname names state to be queried
188 * \param params returns the pointer value
190 * \sa glGetPointerv().
192 * Tries to get the specified pointer via dd_function_table::GetPointerv,
193 * otherwise gets the specified pointer from the current context.
196 _mesa_GetPointerv( GLenum pname
, GLvoid
**params
)
198 GET_CURRENT_CONTEXT(ctx
);
199 const GLuint clientUnit
= ctx
->Array
.ActiveTexture
;
204 if (MESA_VERBOSE
& VERBOSE_API
)
205 _mesa_debug(ctx
, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname
));
208 case GL_VERTEX_ARRAY_POINTER
:
209 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
211 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POS
].Ptr
;
213 case GL_NORMAL_ARRAY_POINTER
:
214 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
216 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Ptr
;
218 case GL_COLOR_ARRAY_POINTER
:
219 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
221 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Ptr
;
223 case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT
:
224 if (ctx
->API
!= API_OPENGL_COMPAT
)
226 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR1
].Ptr
;
228 case GL_FOG_COORDINATE_ARRAY_POINTER_EXT
:
229 if (ctx
->API
!= API_OPENGL_COMPAT
)
231 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_FOG
].Ptr
;
233 case GL_INDEX_ARRAY_POINTER
:
234 if (ctx
->API
!= API_OPENGL_COMPAT
)
236 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR_INDEX
].Ptr
;
238 case GL_TEXTURE_COORD_ARRAY_POINTER
:
239 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
241 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(clientUnit
)].Ptr
;
243 case GL_EDGE_FLAG_ARRAY_POINTER
:
244 if (ctx
->API
!= API_OPENGL_COMPAT
)
246 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_EDGEFLAG
].Ptr
;
248 case GL_FEEDBACK_BUFFER_POINTER
:
249 if (ctx
->API
!= API_OPENGL_COMPAT
)
251 *params
= ctx
->Feedback
.Buffer
;
253 case GL_SELECTION_BUFFER_POINTER
:
254 if (ctx
->API
!= API_OPENGL_COMPAT
)
256 *params
= ctx
->Select
.Buffer
;
258 case GL_POINT_SIZE_ARRAY_POINTER_OES
:
259 if (ctx
->API
!= API_OPENGLES
)
261 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].Ptr
;
263 case GL_DEBUG_CALLBACK_FUNCTION_ARB
:
264 if (!_mesa_is_desktop_gl(ctx
))
266 *params
= (GLvoid
*) ctx
->Debug
.Callback
;
268 case GL_DEBUG_CALLBACK_USER_PARAM_ARB
:
269 if (!_mesa_is_desktop_gl(ctx
))
271 *params
= ctx
->Debug
.CallbackData
;
280 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetPointerv" );
286 * Returns the current GL error code, or GL_NO_ERROR.
287 * \return current error code
289 * Returns __struct gl_contextRec::ErrorValue.
292 _mesa_GetError( void )
294 GET_CURRENT_CONTEXT(ctx
);
295 GLenum e
= ctx
->ErrorValue
;
296 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
298 if (MESA_VERBOSE
& VERBOSE_API
)
299 _mesa_debug(ctx
, "glGetError <-- %s\n", _mesa_lookup_enum_by_nr(e
));
301 ctx
->ErrorValue
= (GLenum
) GL_NO_ERROR
;
302 ctx
->ErrorDebugCount
= 0;
307 * Returns an error code specified by GL_ARB_robustness, or GL_NO_ERROR.
308 * \return current context status
311 _mesa_GetGraphicsResetStatusARB( void )
313 GET_CURRENT_CONTEXT(ctx
);
314 GLenum status
= ctx
->ResetStatus
;
316 if (MESA_VERBOSE
& VERBOSE_API
)
317 _mesa_debug(ctx
, "glGetGraphicsResetStatusARB"
318 "(always returns GL_NO_ERROR)\n");