Revert "egl: Configs w/o double buffering support have no EGL_WINDOW_BIT."

This reverts commit 075a96aa92.

src/egl/drivers/dri2/egl_dri2.c

@@ -425,6 +425,10 @@ dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
          base.BindToTextureRGBA = bind_to_texture_rgba;
    }
 
+   if (double_buffer) {
+      surface_type &= ~EGL_PIXMAP_BIT;
+   }
+
    /* No support for pbuffer + MSAA for now.
     *
     * XXX TODO: pbuffer + MSAA does not work and causes crashes.
@@ -434,6 +438,9 @@ dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
       surface_type &= ~EGL_PBUFFER_BIT;
    }
 
+   if (!surface_type)
+      return NULL;
+
    base.RenderableType = disp->ClientAPIs;
    base.Conformant = disp->ClientAPIs;
 
@@ -483,56 +490,6 @@ dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
    return conf;
 }
 
-/*
- * We finalize the set of `SurfaceType`s supported by a config, and only
- * reinsert it if it actually supports something.
- */
-void
-dri2_finalize_config_surface_types(_EGLDisplay *disp)
-{
-   _EGLArray *configs = _eglWipeConfigs(disp);
-
-   for (int i = 0; i < configs->Size; ++i)
-   {
-      // Since `base` is the first member of `dri2_egl_config`, `base`'s ptr
-      // should equal `dri2_egl_config`'s. This is why this cast is safe.
-      struct dri2_egl_config *conf
-         = (struct dri2_egl_config *) configs->Elements[i];
-
-      const bool double_buffer = conf->dri_config[true][false]
-         || conf->dri_config[true][true];
-
-      const bool single_buffer = conf->dri_config[false][false]
-         || conf->dri_config[false][true];
-
-      /* No support for pixmaps without single buffered dri configs.
-       *
-       * When users pass a config to `eglCreateWindowSurface` it requests
-       * double buffering, but if the config doesn't have the appropriate
-       * `__DRIconfig`, `eglCreateWindowSurface` fails with a `EGL_BAD_MATCH`.
-       *
-       * Given that such behaviour is completely unacceptable, we drop the
-       * `EGL_WINDOW_BIT` if we don't have at least one `__DRIconfig`
-       * supporting double buffering.
-       */
-      if (!single_buffer) {
-         conf->base.SurfaceType &= ~EGL_PIXMAP_BIT;
-      }
-
-      if (!double_buffer) {
-         conf->base.SurfaceType &= ~EGL_WINDOW_BIT;
-      }
-
-      // Dont reinsert configs without some supported surface type.
-      if (!conf->base.SurfaceType) {
-         free(conf);
-         continue;
-      }
-
-      _eglLinkConfig(&conf->base);
-   }
-}
-
 __DRIimage *
 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
 {

src/egl/drivers/dri2/egl_dri2.h

@@ -419,9 +419,6 @@ dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
                 EGLint surface_type, const EGLint *attr_list,
                 const int *rgba_shifts, const unsigned int *rgba_sizes);
 
-void
-dri2_finalize_config_surface_types(_EGLDisplay *disp);
-
 _EGLImage *
 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
                       _EGLContext *ctx, EGLenum target,

src/egl/drivers/dri2/platform_android.c

@@ -1225,8 +1225,6 @@ droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
          has_rgba = true;
    }
 
-   dri2_finalize_config_surface_types(disp);
-
    for (int i = 0; i < ARRAY_SIZE(format_count); i++) {
       if (!format_count[i]) {
          _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",

src/egl/drivers/dri2/platform_device.c

@@ -216,8 +216,6 @@ device_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
       }
    }
 
-   dri2_finalize_config_surface_types(disp);
-
    for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
       if (!format_count[i]) {
          _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",

src/egl/drivers/dri2/platform_drm.c

@@ -658,8 +658,6 @@ drm_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
       }
    }
 
-   dri2_finalize_config_surface_types(disp);
-
    for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
       if (!format_count[i]) {
          struct gbm_format_name_desc desc;

src/egl/drivers/dri2/platform_surfaceless.c

@@ -212,8 +212,6 @@ surfaceless_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
       }
    }
 
-   dri2_finalize_config_surface_types(disp);
-
    for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
       if (!format_count[i]) {
          _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",

src/egl/drivers/dri2/platform_wayland.c

@@ -1445,8 +1445,6 @@ dri2_wl_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
       }
    }
 
-   dri2_finalize_config_surface_types(disp);
-
    for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
       if (!format_count[i]) {
          _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",

src/egl/drivers/dri2/platform_x11.c

@@ -848,8 +848,6 @@ dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
       xcb_depth_next(&d);
    }
 
-   dri2_finalize_config_surface_types(disp);
-
    if (!config_count) {
       _eglLog(_EGL_WARNING, "DRI2: failed to create any config");
       return EGL_FALSE;

src/egl/main/eglconfig.c

@@ -71,16 +71,6 @@ _eglInitConfig(_EGLConfig *conf, _EGLDisplay *disp, EGLint id)
    conf->ComponentType = EGL_COLOR_COMPONENT_TYPE_FIXED_EXT;
 }
 
-/*
- * Wipe the configs list and return the old list
- */
-_EGLArray *
-_eglWipeConfigs(_EGLDisplay *disp)
-{
-   _EGLArray *configs = disp->Configs;
-   disp->Configs = NULL;
-   return configs;
-}
 
 /**
  * Link a config to its display and return the handle of the link.

src/egl/main/eglconfig.h

@@ -179,9 +179,6 @@ _eglGetConfigKey(const _EGLConfig *conf, EGLint key)
 extern void
 _eglInitConfig(_EGLConfig *config, _EGLDisplay *disp, EGLint id);
 
-extern _EGLArray *
-_eglWipeConfigs(_EGLDisplay *disp);
-
 
 extern EGLConfig
 _eglLinkConfig(_EGLConfig *conf);