egl: return correct error code for a case req ver < 3 with forward-compatible

The EGL_KHR_create_context spec says:
   "If an OpenGL context is requested and the values for attributes
    EGL_CONTEXT_MAJOR_VERSION_KHR and EGL_CONTEXT_MINOR_VERSION_KHR,
    when considered together with the value for attribute
    EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR, specify an OpenGL
    version and feature set that are not defined, than an
    EGL_BAD_MATCH error is generated."

This case is already correctly handled a bit below in
the same source file.
The correct handling was added by commit: 63beb3df

Reported-by: Ian Romanick <[email protected]>
Here: https://bugzilla.freedesktop.org/show_bug.cgi?id=92552#c9
Fixes: 11cabc45b712 "egl: rework handling EGL_CONTEXT_FLAGS"
Reviewed-by: Ian Romanick <[email protected]>
Signed-off-by: Andrii Simiklit <[email protected]>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c
index 216ddb41997..ae90e4e2bd4 100644
--- a/src/egl/main/eglcontext.c
+++ b/src/egl/main/eglcontext.c
@@ -178,9 +178,12 @@ _eglParseContextAttribList(_EGLContext *ctx, _EGLDisplay *disp,
           *     is supported for OpenGL contexts, and requesting a
           *     forward-compatible context for OpenGL versions less than 3.0
           *     will generate an error."
+          *
+          * Note: since the forward-compatible flag can be set more than one way,
+          *       the OpenGL version check is performed once, below.
           */
          if ((val & EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR) &&
-             (api != EGL_OPENGL_API || ctx->ClientMajorVersion < 3)) {
+              api != EGL_OPENGL_API) {
             err = EGL_BAD_ATTRIBUTE;
             break;
          }