diff options
| -rw-r--r-- | src/dispatch_common.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/dispatch_common.c b/src/dispatch_common.c index 483782c..df167d4 100644 --- a/src/dispatch_common.c +++ b/src/dispatch_common.c @@ -192,6 +192,8 @@ static struct api api = { static bool library_initialized; +static bool epoxy_current_context_is_glx(void); + #if PLATFORM_HAS_EGL static EGLenum epoxy_egl_get_current_gl_context_api(void); @@ -269,6 +271,24 @@ epoxy_is_desktop_gl(void) const char *es_prefix = "OpenGL ES"; const char *version; +#if PLATFORM_HAS_EGL + /* PowerVR's OpenGL ES implementation (and perhaps other) don't + * comply with the standard, which states that + * "glGetString(GL_VERSION)" should return a string starting with + * "OpenGL ES". Therefore, to distinguish desktop OpenGL from + * OpenGL ES, we must also check the context type through EGL (we + * can do that as PowerVR is only usable through EGL). + */ + if (!epoxy_current_context_is_glx()) { + switch (epoxy_egl_get_current_gl_context_api()) { + case EGL_OPENGL_API: return true; + case EGL_OPENGL_ES_API: return false; + case EGL_NONE: + default: break; + } + } +#endif + if (api.begin_count) return true; |