[intel] Initialize a depth buffer if the visual has depth 24 but no stencil.

diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index 25f5efa7bcfa9e8744b0b3f02ad868b7c1f70970..a34250952acfec46d90f7626e5ded2e96f1e72f9 100644 (file)
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -655,21 +655,34 @@ intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
         }
       }
 
-      if (mesaVis->depthBits == 24 && mesaVis->stencilBits == 8) {
-         /* combined depth/stencil buffer */
-         struct intel_renderbuffer *depthStencilRb
-            = intel_create_renderbuffer(GL_DEPTH24_STENCIL8_EXT,
-                                        screen->width, screen->height,
-                                        screen->depth.offset,
-                                        screen->depth.pitch,
-                                        screen->cpp,    /* 4! */
-                                        screen->depth.map);
-         intel_set_span_functions(&depthStencilRb->Base);
-         /* note: bind RB to two attachment points */
-         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
-                               &depthStencilRb->Base);
-         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_STENCIL,
-                               &depthStencilRb->Base);
+      if (mesaVis->depthBits == 24) {
+        if (mesaVis->stencilBits == 8) {
+           /* combined depth/stencil buffer */
+           struct intel_renderbuffer *depthStencilRb
+              = intel_create_renderbuffer(GL_DEPTH24_STENCIL8_EXT,
+                                          screen->width, screen->height,
+                                          screen->depth.offset,
+                                          screen->depth.pitch,
+                                          screen->cpp,    /* 4! */
+                                          screen->depth.map);
+           intel_set_span_functions(&depthStencilRb->Base);
+           /* note: bind RB to two attachment points */
+           _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
+                                  &depthStencilRb->Base);
+           _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_STENCIL,
+                                  &depthStencilRb->Base);
+        } else {
+           struct intel_renderbuffer *depthRb
+              = intel_create_renderbuffer(GL_DEPTH_COMPONENT24,
+                                          screen->width, screen->height,
+                                          screen->depth.offset,
+                                          screen->depth.pitch,
+                                          screen->cpp,    /* 4! */
+                                          screen->depth.map);
+           intel_set_span_functions(&depthRb->Base);
+           _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
+                                  &depthRb->Base);
+        }
       }
       else if (mesaVis->depthBits == 16) {
          /* just 16-bit depth buffer, no hw stencil */