Add patch for bug 431014 to fix EGL surfaceless extension detection.

(Portage version: 2.1.11.9/cvs/Linux x86_64)

1 files changed, 37 insertions, 0 deletions

diff --git a/x11-libs/cairo/files/cairo-1.12.2-surfaceless-extension.patch b/x11-libs/cairo/files/cairo-1.12.2-surfaceless-extension.patch
new file mode 100644
index 000000000000..4222d8935ab2
--- /dev/null
+++ b/x11-libs/cairo/files/cairo-1.12.2-surfaceless-extension.patch
@@ -0,0 +1,37 @@
+commit f59b0914f4ddbff0d116c918343a6726d5f4317b
+Author: Chris Wilson <chris@chris-wilson.co.uk>
+Date:   Sat Aug 11 17:38:36 2012 +0100
+
+    egl: s/EGL_KHR_surfaceless_opengl/EGL_KHR_surfaceless_context/
+    
+    Mesa changed the name of the extension it invented, so check for the
+    real name and the old name before falling back to pbuffers which are not
+    supported by most EGL implementations.
+    
+    References: https://bugs.freedesktop.org/show_bug.cgi?id=53361
+    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
+
+diff --git a/src/cairo-egl-context.c b/src/cairo-egl-context.c
+index eb1ef29..b24bc80 100644
+--- a/src/cairo-egl-context.c
++++ b/src/cairo-egl-context.c
+@@ -122,8 +122,10 @@ _egl_make_current_surfaceless(cairo_egl_context_t *ctx)
+     const char *extensions;
+ 
+     extensions = eglQueryString(ctx->display, EGL_EXTENSIONS);
+-    if (!strstr(extensions, "EGL_KHR_surfaceless_opengl"))
++    if (strstr(extensions, "EGL_KHR_surfaceless_context") == NULL &&
++	strstr(extensions, "EGL_KHR_surfaceless_opengl") == NULL)
+ 	return FALSE;
++
+     if (!eglMakeCurrent(ctx->display,
+ 			EGL_NO_SURFACE, EGL_NO_SURFACE, ctx->context))
+ 	return FALSE;
+@@ -174,7 +176,6 @@ cairo_egl_device_create (EGLDisplay dpy, EGLContext egl)
+ 	eglChooseConfig (dpy, config_attribs, &config, 1, &numConfigs);
+ 
+ 	ctx->dummy_surface = eglCreatePbufferSurface (dpy, config, attribs);
+-
+ 	if (ctx->dummy_surface == NULL) {
+ 	    free (ctx);
+ 	    return _cairo_gl_context_create_in_error (CAIRO_STATUS_NO_MEMORY);