egl/x11: attribute for dri2_add_config failure

... in dri2_x11_add_configs_for_visuals().

Currently the latter does not consider that, thus in such cases it adds
"empty" configs in the list.

Properly account for things and as we do that we can reuse count,
instead of calling _eglGetArraySize to determine if we've added any
configs.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>

diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c
index 0b1b514..2921147 100644 (file)
--- a/src/egl/drivers/dri2/platform_x11.c
+++ b/src/egl/drivers/dri2/platform_x11.c
@@ -723,7 +723,7 @@ dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
    xcb_screen_iterator_t s;
    xcb_depth_iterator_t d;
    xcb_visualtype_t *visuals;
-   int i, j, id;
+   int i, j, count;
    unsigned int rgba_masks[4];
    EGLint surface_type;
    EGLint config_attrs[] = {
@@ -734,7 +734,7 @@ dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
 
    s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
    d = xcb_screen_allowed_depths_iterator(get_xcb_screen(s, dri2_dpy->screen));
-   id = 1;
+   count = 0;
 
    surface_type =
       EGL_WINDOW_BIT |
@@ -754,6 +754,9 @@ dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
 
         class_added[visuals[i]._class] = EGL_TRUE;
         for (j = 0; dri2_dpy->driver_configs[j]; j++) {
+            struct dri2_egl_config *dri2_conf;
+            const __DRIconfig *config = dri2_dpy->driver_configs[j];
+
             config_attrs[1] = visuals[i].visual_id;
             config_attrs[3] = visuals[i]._class;
 
@@ -761,8 +764,10 @@ dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
             rgba_masks[1] = visuals[i].green_mask;
             rgba_masks[2] = visuals[i].blue_mask;
             rgba_masks[3] = 0;
-           dri2_add_config(disp, dri2_dpy->driver_configs[j], id++,
-                           surface_type, config_attrs, rgba_masks);
+            dri2_conf = dri2_add_config(disp, config, count + 1, surface_type,
+                                        config_attrs, rgba_masks);
+            if (dri2_conf)
+               count++;
 
             /* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig.
              * Otherwise it will only match a 32-bit RGBA visual.  On a
@@ -774,8 +779,10 @@ dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
             if (d.data->depth == 24) {
                rgba_masks[3] =
                   ~(rgba_masks[0] | rgba_masks[1] | rgba_masks[2]);
-               dri2_add_config(disp, dri2_dpy->driver_configs[j], id++,
-                               surface_type, config_attrs, rgba_masks);
+               dri2_conf = dri2_add_config(disp, config, count + 1, surface_type,
+                                           config_attrs, rgba_masks);
+               if (dri2_conf)
+                  count++;
             }
         }
       }
@@ -783,7 +790,7 @@ dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
       xcb_depth_next(&d);
    }
 
-   if (!_eglGetArraySize(disp->Configs)) {
+   if (!count) {
       _eglLog(_EGL_WARNING, "DRI2: failed to create any config");
       return EGL_FALSE;
    }