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 switch (ctx
->Const
.GLSLVersion
) {
46 return (const GLubyte
*) "1.20";
48 return (const GLubyte
*) "1.30";
50 return (const GLubyte
*) "1.40";
52 return (const GLubyte
*) "1.50";
54 return (const GLubyte
*) "3.30";
56 return (const GLubyte
*) "4.00";
58 return (const GLubyte
*) "4.10";
60 return (const GLubyte
*) "4.20";
63 "Invalid GLSL version in shading_language_version()");
64 return (const GLubyte
*) 0;
69 return (ctx
->Version
< 30)
70 ? (const GLubyte
*) "OpenGL ES GLSL ES 1.0.16"
71 : (const GLubyte
*) "OpenGL ES GLSL ES 3.0";
77 _mesa_problem(ctx
, "Unexpected API value in shading_language_version()");
78 return (const GLubyte
*) 0;
84 * Query string-valued state. The return value should _not_ be freed by
87 * \param name the state variable to query.
91 * Tries to get the string from dd_function_table::GetString, otherwise returns
92 * the hardcoded strings.
94 const GLubyte
* GLAPIENTRY
95 _mesa_GetString( GLenum name
)
97 GET_CURRENT_CONTEXT(ctx
);
98 static const char *vendor
= "Brian Paul";
99 static const char *renderer
= "Mesa";
104 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
106 /* this is a required driver function */
107 assert(ctx
->Driver
.GetString
);
109 /* Give the driver the chance to handle this query */
110 const GLubyte
*str
= (*ctx
->Driver
.GetString
)(ctx
, name
);
117 return (const GLubyte
*) vendor
;
119 return (const GLubyte
*) renderer
;
121 return (const GLubyte
*) ctx
->VersionString
;
123 if (ctx
->API
== API_OPENGL_CORE
) {
124 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetString(GL_EXTENSIONS)");
125 return (const GLubyte
*) 0;
127 return (const GLubyte
*) ctx
->Extensions
.String
;
128 case GL_SHADING_LANGUAGE_VERSION
:
129 if (ctx
->API
== API_OPENGLES
)
131 return shading_language_version(ctx
);
132 case GL_PROGRAM_ERROR_STRING_ARB
:
133 if (ctx
->API
== API_OPENGL_COMPAT
&&
134 (ctx
->Extensions
.ARB_fragment_program
||
135 ctx
->Extensions
.ARB_vertex_program
)) {
136 return (const GLubyte
*) ctx
->Program
.ErrorString
;
143 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
144 return (const GLubyte
*) 0;
151 const GLubyte
* GLAPIENTRY
152 _mesa_GetStringi(GLenum name
, GLuint index
)
154 GET_CURRENT_CONTEXT(ctx
);
159 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, NULL
);
163 if (index
>= _mesa_get_extension_count(ctx
)) {
164 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGetStringi(index=%u)", index
);
165 return (const GLubyte
*) 0;
167 return _mesa_get_enabled_extension(ctx
, index
);
169 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetString" );
170 return (const GLubyte
*) 0;
177 * Return pointer-valued state, such as a vertex array pointer.
179 * \param pname names state to be queried
180 * \param params returns the pointer value
182 * \sa glGetPointerv().
184 * Tries to get the specified pointer via dd_function_table::GetPointerv,
185 * otherwise gets the specified pointer from the current context.
188 _mesa_GetPointerv( GLenum pname
, GLvoid
**params
)
190 GET_CURRENT_CONTEXT(ctx
);
191 const GLuint clientUnit
= ctx
->Array
.ActiveTexture
;
196 if (MESA_VERBOSE
& VERBOSE_API
)
197 _mesa_debug(ctx
, "glGetPointerv %s\n", _mesa_lookup_enum_by_nr(pname
));
200 case GL_VERTEX_ARRAY_POINTER
:
201 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
203 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_POS
].Ptr
;
205 case GL_NORMAL_ARRAY_POINTER
:
206 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
208 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Ptr
;
210 case GL_COLOR_ARRAY_POINTER
:
211 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
213 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Ptr
;
215 case GL_SECONDARY_COLOR_ARRAY_POINTER_EXT
:
216 if (ctx
->API
!= API_OPENGL_COMPAT
)
218 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
].Ptr
;
220 case GL_FOG_COORDINATE_ARRAY_POINTER_EXT
:
221 if (ctx
->API
!= API_OPENGL_COMPAT
)
223 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_FOG
].Ptr
;
225 case GL_INDEX_ARRAY_POINTER
:
226 if (ctx
->API
!= API_OPENGL_COMPAT
)
228 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR_INDEX
].Ptr
;
230 case GL_TEXTURE_COORD_ARRAY_POINTER
:
231 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
233 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_TEX(clientUnit
)].Ptr
;
235 case GL_EDGE_FLAG_ARRAY_POINTER
:
236 if (ctx
->API
!= API_OPENGL_COMPAT
)
238 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_EDGEFLAG
].Ptr
;
240 case GL_FEEDBACK_BUFFER_POINTER
:
241 if (ctx
->API
!= API_OPENGL_COMPAT
)
243 *params
= ctx
->Feedback
.Buffer
;
245 case GL_SELECTION_BUFFER_POINTER
:
246 if (ctx
->API
!= API_OPENGL_COMPAT
)
248 *params
= ctx
->Select
.Buffer
;
250 case GL_POINT_SIZE_ARRAY_POINTER_OES
:
251 if (ctx
->API
!= API_OPENGLES
)
253 *params
= (GLvoid
*) ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].Ptr
;
255 case GL_DEBUG_CALLBACK_FUNCTION_ARB
:
256 if (!_mesa_is_desktop_gl(ctx
)) {
260 struct gl_debug_state
*debug
= _mesa_get_debug_state(ctx
);
261 *params
= debug
? (void *) debug
->Callback
: NULL
;
264 case GL_DEBUG_CALLBACK_USER_PARAM_ARB
:
265 if (!_mesa_is_desktop_gl(ctx
)) {
269 struct gl_debug_state
*debug
= _mesa_get_debug_state(ctx
);
270 *params
= debug
? (void *) debug
->CallbackData
: NULL
;
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
= GL_NO_ERROR
;
316 /* The ARB_robustness specification says:
318 * "If the reset notification behavior is NO_RESET_NOTIFICATION_ARB,
319 * then the implementation will never deliver notification of reset
320 * events, and GetGraphicsResetStatusARB will always return NO_ERROR."
322 if (ctx
->Const
.ResetStrategy
== GL_NO_RESET_NOTIFICATION_ARB
) {
323 if (MESA_VERBOSE
& VERBOSE_API
)
325 "glGetGraphicsResetStatusARB always returns GL_NO_ERROR "
326 "because reset notifictation was not requested at context "
332 if (ctx
->Driver
.GetGraphicsResetStatus
) {
333 /* Query the reset status of this context from the driver core.
335 status
= ctx
->Driver
.GetGraphicsResetStatus(ctx
);
337 mtx_lock(&ctx
->Shared
->Mutex
);
339 /* If this context has not been affected by a GPU reset, check to see if
340 * some other context in the share group has been affected by a reset.
341 * If another context saw a reset but this context did not, assume that
342 * this context was not guilty.
344 if (status
!= GL_NO_ERROR
) {
345 ctx
->Shared
->ShareGroupReset
= true;
346 } else if (ctx
->Shared
->ShareGroupReset
&& !ctx
->ShareGroupReset
) {
347 status
= GL_INNOCENT_CONTEXT_RESET_ARB
;
350 ctx
->ShareGroupReset
= ctx
->Shared
->ShareGroupReset
;
351 mtx_unlock(&ctx
->Shared
->Mutex
);
354 if (!ctx
->Driver
.GetGraphicsResetStatus
&& (MESA_VERBOSE
& VERBOSE_API
))
356 "glGetGraphicsResetStatusARB always returns GL_NO_ERROR "
357 "because the driver doesn't track reset status.\n");