Make EGL function eglCreateContext spec-conformant and actually read the EGL_CONTEXT_CLIENT_VERSION field when creating a context. Require the version number 2, since WebGL1 maps to GLES2.

1 files changed, 10 insertions, 1 deletions

diff --git a/tests/test_egl.c b/tests/test_egl.c
index 5864a797..d66949d0 100644
--- a/tests/test_egl.c
+++ b/tests/test_egl.c
@@ -37,12 +37,21 @@ int main(int argc, char *argv[])
     assert(eglGetError() == EGL_SUCCESS);
     assert(surface != 0);
 
+    // WebGL maps to GLES2. GLES1 is not supported.
+    EGLint contextAttribsOld[] =
+    {
+        EGL_CONTEXT_CLIENT_VERSION, 1,
+        EGL_NONE
+    };
+    EGLContext context = eglCreateContext(display, config, NULL, contextAttribsOld);
+    assert(eglGetError() != EGL_SUCCESS);
+
     EGLint contextAttribs[] =
     {
         EGL_CONTEXT_CLIENT_VERSION, 2,
         EGL_NONE
     };
-    EGLContext context = eglCreateContext(display, config, NULL, contextAttribs);
+    context = eglCreateContext(display, config, NULL, contextAttribs);
     assert(eglGetError() == EGL_SUCCESS);
     assert(context != 0);