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GLX: Fix segfault when no GLXFBConfigs available

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Fixes #1040.
This commit is contained in:
Camilla Löwy 2017-07-07 10:23:58 +02:00
parent 8c0512027f
commit 07bf2b166b
2 changed files with 3 additions and 1 deletions
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2
README.md
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@ -208,6 +208,8 @@ information on what to include when reporting a bug.
- [WGL] Added support for `WGL_EXT_colorspace` for OpenGL ES contexts
- [WGL] Added support for `WGL_ARB_create_context_no_error`
- [GLX] Added support for `GLX_ARB_create_context_no_error`
- [GLX] Bugfix: Context creation could segfault if no GLXFBConfigs were
available (#1040)
- [EGL] Added support for `EGL_KHR_get_all_proc_addresses` (#871)
- [EGL] Added support for `EGL_KHR_context_flush_control`
- [EGL] Bugfix: The test for `EGL_RGB_BUFFER` was invalid

2
src/glx_context.c
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@ -64,7 +64,7 @@ static GLFWbool chooseGLXFBConfig(const _GLFWfbconfig* desired, GLXFBConfig* res
nativeConfigs =
glXGetFBConfigs(_glfw.x11.display, _glfw.x11.screen, &nativeCount);
if (!nativeCount)
if (!nativeConfigs || !nativeCount)
{
_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: No GLXFBConfigs returned");
return GLFW_FALSE;