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 (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 case GL_SHADING_LANGUAGE_VERSION:
135 if (ctx->API == API_OPENGLES)
137 return shading_language_version(ctx);
138 case GL_PROGRAM_ERROR_STRING_NV:
139 if (ctx->API == API_OPENGL_COMPAT &&
140 (ctx->Extensions.ARB_fragment_program ||
141 ctx->Extensions.ARB_vertex_program)) {
142 return (const GLubyte *) ctx->Program.ErrorString;
149 _mesa_error( ctx, GL_INVALID_ENUM, "glGetString" );
150 return (const GLubyte *) 0;
157 const GLubyte * GLAPIENTRY
158 _mesa_GetStringi(GLenum name, GLuint index)
160 GET_CURRENT_CONTEXT(ctx);
165 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
169 if (index >= _mesa_get_extension_count(ctx)) {
170 _mesa_error(ctx, GL_INVALID_VALUE, "glGetStringi(index=%u)", index);
171 return (const GLubyte *) 0;
173 return _mesa_get_enabled_extension(ctx, index);
175 _mesa_error( ctx, GL_INVALID_ENUM, "glGetString" );
176 return (const GLubyte *) 0;
183 * Return pointer-valued state, such as a vertex array pointer.
185 * \param pname names state to be queried
186 * \param params returns the pointer value
188 * \sa glGetPointerv().
190 * Tries to get the specified pointer via dd_function_table::GetPointerv,
191 * otherwise gets the specified pointer from the current context.
194 _mesa_GetPointerv( GLenum pname, GLvoid **params )
196 GET_CURRENT_CONTEXT(ctx);
197 const GLuint clientUnit = ctx->Array.ActiveTexture;
198 ASSERT_OUTSIDE_BEGIN_END(ctx);
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");