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
)
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";
58 "Invalid GLSL version in shading_language_version()");
59 return (const GLubyte
*) 0;
64 return (const GLubyte
*) "OpenGL ES GLSL ES 1.0.16";
70 _mesa_problem(ctx
, "Unexpected API value in shading_language_version()");
71 return (const GLubyte
*) 0;
77 * Query string-valued state. The return value should _not_ be freed by
80 * \param name the state variable to query.
84 * Tries to get the string from dd_function_table::GetString, otherwise returns
85 * the hardcoded strings.
87 const GLubyte
* GLAPIENTRY
88 _mesa_GetString( GLenum name
)
90 GET_CURRENT_CONTEXT(ctx
);
91 static const char *vendor
= "Brian Paul";
92 static const char *renderer
= "Mesa";
97 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
99 /* this is a required driver function */
100 assert(ctx
->Driver
.GetString
);
102 /* Give the driver the chance to handle this query */
103 const GLubyte
*str
= (*ctx
->Driver
.GetString
)(ctx
, name
);
110 return (const GLubyte
*) vendor
;
112 return (const GLubyte
*) renderer
;
114 return (const GLubyte
*) ctx
->VersionString
;
116 return (const GLubyte
*) ctx
->Extensions
.String
;
117 #if FEATURE_ARB_shading_language_100 || FEATURE_ES2
118 case GL_SHADING_LANGUAGE_VERSION
:
119 return shading_language_version(ctx
);
121 #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program || \
122 FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
123 case GL_PROGRAM_ERROR_STRING_NV
:
124 if (ctx
->Extensions
.NV_fragment_program
||
125 ctx
->Extensions
.ARB_fragment_program
||
126 ctx
->Extensions
.NV_vertex_program
||
127 ctx
->Extensions
.ARB_vertex_program
) {
128 return (const GLubyte
*) ctx
->Program
.ErrorString
;
133 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
134 return (const GLubyte
*) 0;
142 const GLubyte
* GLAPIENTRY
143 _mesa_GetStringi(GLenum name
, GLuint index
)
145 GET_CURRENT_CONTEXT(ctx
);
150 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
154 if (index
>= _mesa_get_extension_count(ctx
)) {
155 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetStringi(index=%u)", index
);
156 return (const GLubyte
*) 0;
158 return _mesa_get_enabled_extension(ctx
, index
);
160 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
161 return (const GLubyte
*) 0;
168 * Return pointer-valued state, such as a vertex array pointer.
170 * \param pname names state to be queried
171 * \param params returns the pointer value
173 * \sa glGetPointerv().
175 * Tries to get the specified pointer via dd_function_table::GetPointerv,
176 * otherwise gets the specified pointer from the current context.
179 _mesa_GetPointerv( GLenum pname
, GLvoid
**params
)
181 GET_CURRENT_CONTEXT(ctx
);
182 const GLuint clientUnit
= ctx
->Array
.ActiveTexture
;
183 ASSERT_OUTSIDE_BEGIN_END(ctx
);
188 if (MESA_VERBOSE
& VERBOSE_API
)
189 _mesa_debug(ctx
, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname
));
192 case GL_VERTEX_ARRAY_POINTER
:
193 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POS
].Ptr
;
195 case GL_NORMAL_ARRAY_POINTER
:
196 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Ptr
;
198 case GL_COLOR_ARRAY_POINTER
:
199 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Ptr
;
201 case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT
:
202 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR1
].Ptr
;
204 case GL_FOG_COORDINATE_ARRAY_POINTER_EXT
:
205 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_FOG
].Ptr
;
207 case GL_INDEX_ARRAY_POINTER
:
208 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_COLOR_INDEX
].Ptr
;
210 case GL_TEXTURE_COORD_ARRAY_POINTER
:
211 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(clientUnit
)].Ptr
;
213 case GL_EDGE_FLAG_ARRAY_POINTER
:
214 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_EDGEFLAG
].Ptr
;
216 case GL_FEEDBACK_BUFFER_POINTER
:
217 *params
= ctx
->Feedback
.Buffer
;
219 case GL_SELECTION_BUFFER_POINTER
:
220 *params
= ctx
->Select
.Buffer
;
222 #if FEATURE_point_size_array
223 case GL_POINT_SIZE_ARRAY_POINTER_OES
:
224 *params
= (GLvoid
*) ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].Ptr
;
228 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetPointerv" );
235 * Returns the current GL error code, or GL_NO_ERROR.
236 * \return current error code
238 * Returns __struct gl_contextRec::ErrorValue.
241 _mesa_GetError( void )
243 GET_CURRENT_CONTEXT(ctx
);
244 GLenum e
= ctx
->ErrorValue
;
245 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
247 if (MESA_VERBOSE
& VERBOSE_API
)
248 _mesa_debug(ctx
, "glGetError <-- %s\n", _mesa_lookup_enum_by_nr(e
));
250 ctx
->ErrorValue
= (GLenum
) GL_NO_ERROR
;
251 ctx
->ErrorDebugCount
= 0;
256 * Returns an error code specified by GL_ARB_robustness, or GL_NO_ERROR.
257 * \return current context status
260 _mesa_GetGraphicsResetStatusARB( void )
262 GET_CURRENT_CONTEXT(ctx
);
263 GLenum status
= ctx
->ResetStatus
;
265 if (MESA_VERBOSE
& VERBOSE_API
)
266 _mesa_debug(ctx
, "glGetGraphicsResetStatusARB"
267 "(always returns GL_NO_ERROR)\n");