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Add check for OpenGL version 2.1 on linux.

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Unfortunately there's no easy way to show a messagebox here, so just
print a warning on fstderr and exit. If we don't call exit() here we get
crashes on other blender systems (python, opensubdiv) and it can get
tricky to track the initialization state here, so just using exit()
should do the trick for now.
This commit is contained in:
Antony Riakiotakis 2015-11-22 18:14:16 +01:00
parent 4310a76b60
commit 8623d75b46
1 changed files with 13 additions and 2 deletions
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15
intern/ghost/intern/GHOST_ContextGLX.cpp
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@ -94,7 +94,7 @@ GHOST_ContextGLX::~GHOST_ContextGLX()
if (m_context != None) {
if (m_window != 0 && m_context == ::glXGetCurrentContext())
::glXMakeCurrent(m_display, m_window, NULL);
::glXMakeCurrent(m_display, None, NULL);
if (m_context != s_sharedContext || s_sharedCount == 1) {
assert(s_sharedCount > 0);
@ -308,6 +308,8 @@ const bool GLXEW_ARB_create_context_robustness =
GHOST_TSuccess success;
if (m_context != NULL) {
const unsigned char *version;
if (!s_sharedContext)
s_sharedContext = m_context;
@ -325,7 +327,16 @@ const bool GLXEW_ARB_create_context_robustness =
/* re initialize to get the extensions properly */
initContextGLXEW();
success = GHOST_kSuccess;
version = glGetString(GL_VERSION);
if (version[0] < '2' || ((version[0] == '2') && (version[2] < '1'))) {
fprintf(stderr, "Error! Blender requires OpenGL 2.1 to run.\n");
fflush(stderr);
/* ugly, but we get crashes unless a whole bunch of systems are patched. */
exit(0);
}
else
success = GHOST_kSuccess;
}
else {
/* freeing well clean up the context initialized above */