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egl: fallback to a non-debug context if a debug one fails

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The text for EGL_KHR_create_context added the possiblity for ES
contexts to ask for a debug context however that has not been
fully realized by all implementations.  Fallback to a non-debug
context when the implementation errors.
This commit is contained in:
Matthew Waters 2014-08-22 16:49:10 +10:00
parent 3c80396424
commit 83a32dbddb
1 changed files with 21 additions and 4 deletions
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25
gst-libs/gst/gl/egl/gstglcontext_egl.c
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@ -328,6 +328,8 @@ gst_gl_context_egl_create_context (GstGLContext * context,
goto failure;
}
egl_exts = eglQueryString (egl->egl_display, EGL_EXTENSIONS);
GST_DEBUG ("about to create gl context\n");
if (egl->gl_api & GST_GL_API_GLES2) {
@ -335,8 +337,10 @@ gst_gl_context_egl_create_context (GstGLContext * context,
context_attrib[i++] = 2;
}
#if !defined(GST_DISABLE_GST_DEBUG)
context_attrib[i++] = EGL_CONTEXT_FLAGS_KHR;
context_attrib[i++] = EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
if (gst_gl_check_extension ("EGL_KHR_create_context", egl_exts)) {
context_attrib[i++] = EGL_CONTEXT_FLAGS_KHR;
context_attrib[i++] = EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
}
#endif
context_attrib[i++] = EGL_NONE;
@ -344,6 +348,21 @@ gst_gl_context_egl_create_context (GstGLContext * context,
eglCreateContext (egl->egl_display, egl->egl_config,
(EGLContext) external_gl_context, context_attrib);
if (egl->egl_context == EGL_NO_CONTEXT && egl->gl_api & GST_GL_API_GLES2
&& eglGetError () != EGL_SUCCESS) {
/* try without EGL_CONTEXT_FLAGS flags as it was added to
* EGL_KHR_create_context for gles contexts */
int i;
for (i = 0; i < G_N_ELEMENTS (context_attrib); i++) {
if (context_attrib[i] == EGL_CONTEXT_FLAGS_KHR ||
context_attrib[i] == EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR)
context_attrib[i] = EGL_NONE;
}
egl->egl_context =
eglCreateContext (egl->egl_display, egl->egl_config,
(EGLContext) external_gl_context, context_attrib);
}
if (egl->egl_context != EGL_NO_CONTEXT) {
GST_INFO ("gl context created: %" G_GUINTPTR_FORMAT,
(guintptr) egl->egl_context);
@ -355,8 +374,6 @@ gst_gl_context_egl_create_context (GstGLContext * context,
goto failure;
}
egl_exts = eglQueryString (egl->egl_display, EGL_EXTENSIONS);
if (other_context == NULL) {
/* FIXME do we want a window vfunc ? */
#if GST_GL_HAVE_WINDOW_X11