/**
* Set the context's Version and VersionString fields.
* This should only be called once as part of context initialization
* or to perform version check for GLX_ARB_create_context_profile.
*/
void
_mesa_compute_version(struct gl_context *ctx)
{
if (ctx->Version)
return;
switch (ctx->API) {
case API_OPENGL_COMPAT:
/* Disable GLSL 1.40 and later for legacy contexts.
* This disallows creation of the GL 3.1 compatibility context. */
if (ctx->Const.GLSLVersion > 130) {
ctx->Const.GLSLVersion = 130;
}
/* fall through */
case API_OPENGL_CORE:
compute_version(ctx);
break;
case API_OPENGLES:
compute_version_es1(ctx);
break;
case API_OPENGLES2:
compute_version_es2(ctx);
break;
case API_VK:
break;
}
}
/**
* Query string-valued state. The return value should _not_ be freed by
* the caller.
*
* \param name the state variable to query.
*
* \sa glGetString().
*
* Tries to get the string from dd_function_table::GetString, otherwise returns
* the hardcoded strings.
*/
const GLubyte * GLAPIENTRY
_mesa_GetString( GLenum name )
{
GET_CURRENT_CONTEXT(ctx);
static const char *vendor = "Brian Paul";
static const char *renderer = "Mesa";
if (!ctx)
return NULL;
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
/* this is a required driver function */
assert(ctx->Driver.GetString);
{
/* Give the driver the chance to handle this query */
const GLubyte *str = (*ctx->Driver.GetString)(ctx, name);
if (str)
return str;
}
switch (name) {
case GL_VENDOR:
return (const GLubyte *) vendor;
case GL_RENDERER:
return (const GLubyte *) renderer;
case GL_VERSION:
return (const GLubyte *) compute_version(ctx);
case GL_EXTENSIONS:
if (!ctx->Extensions.String)
ctx->Extensions.String = _mesa_make_extension_string(ctx);
return (const GLubyte *) ctx->Extensions.String;
#if FEATURE_ARB_shading_language_100
case GL_SHADING_LANGUAGE_VERSION_ARB:
if (ctx->Extensions.ARB_shading_language_120)
return (const GLubyte *) "1.20";
else if (ctx->Extensions.ARB_shading_language_100)
return (const GLubyte *) "1.10";
goto error;
#endif
#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program || \
FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
case GL_PROGRAM_ERROR_STRING_NV:
if (ctx->Extensions.NV_fragment_program ||
ctx->Extensions.ARB_fragment_program ||
ctx->Extensions.NV_vertex_program ||
ctx->Extensions.ARB_vertex_program) {
return (const GLubyte *) ctx->Program.ErrorString;
}
/* FALL-THROUGH */
#endif
#if FEATURE_ARB_shading_language_100
error:
#endif
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetString" );
return (const GLubyte *) 0;
}
}
/**
* Set the context's VersionMajor, VersionMinor, VersionString fields.
* This should only be called once as part of context initialization
* or to perform version check for GLX_ARB_create_context_profile.
*/
void
_mesa_compute_version(struct gl_context *ctx)
{
if (ctx->VersionMajor)
return;
switch (ctx->API) {
case API_OPENGL:
compute_version(ctx);
break;
case API_OPENGLES:
compute_version_es1(ctx);
break;
case API_OPENGLES2:
compute_version_es2(ctx);
break;
}
}
