[Mesa-dev] [PATCH] egl: do not initialize w, h in dri2_query_surface

[Tapani Pälli]

They always get initialized to zero by swrastGetDrawableInfo. Valid
X11 Drawable minimum size is 1x1, so we can detect success/change by
checking against 0.

Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
Reported-by: Emil Velikov <emil.velikov at collabora.com>
---
 src/egl/drivers/dri2/platform_x11.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c
index 61e700f..4917004 100644
--- a/src/egl/drivers/dri2/platform_x11.c
+++ b/src/egl/drivers/dri2/platform_x11.c
@@ -412,7 +412,7 @@ dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy,
 {
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
-   int x, y, w = -1, h = -1;
+   int x, y, w, h;
 
    __DRIdrawable *drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
 
@@ -420,7 +420,7 @@ dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy,
    case EGL_WIDTH:
    case EGL_HEIGHT:
       swrastGetDrawableInfo(drawable, &x, &y, &w, &h, dri2_surf);
-      if (w != -1 && h != -1) {
+      if (w != 0 && h != 0) {
          surf->Width = w;
          surf->Height = h;
       }
-- 
2.9.4