If we can't create a 3.2 core context, fall back to a 3.1 context.
---
run.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/run.c b/run.c
index 79d771e..2056ebd 100644
--- a/run.c
+++ b/run.c
@@ -383,9 +383,22 @@ create_context(EGLDisplay egl_dpy, EGLConfig cfg, enum
shader_type type)
EGL_NONE
};
switch (type) {
- case TYPE_CORE:
+ case TYPE_CORE: {
eglBindAPI(EGL_OPENGL_API);
- return eglCreateContext(egl_dpy, cfg, EGL_NO_CONTEXT, attribs);
+ EGLContext core_ctx =
+ eglCreateContext(egl_dpy, cfg, EGL_NO_CONTEXT, attribs);
+
+ if (core_ctx == EGL_NO_CONTEXT) {
+ static const EGLint attribs_31[] = {
+ EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
+ EGL_CONTEXT_MINOR_VERSION_KHR, 1,
+ EGL_NONE
+ };
+ core_ctx = eglCreateContext(egl_dpy, cfg, EGL_NO_CONTEXT,
attribs_31);
+ }
+
+ return core_ctx;
+ }
case TYPE_COMPAT:
eglBindAPI(EGL_OPENGL_API);
return eglCreateContext(egl_dpy, cfg, EGL_NO_CONTEXT, &attribs[6]);
--
2.14.3
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