From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Thu, 1 Sep 2005 20:14:50 +0000 (+0000)
Subject: added an assertion to help debug broken stencil readback
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b252e0f47f0bd5b4a086eabb5cc2d4f9cd61a785;p=mesa.git

added an assertion to help debug broken stencil readback
---

diff --git a/src/mesa/drivers/dri/r200/r200_span.c b/src/mesa/drivers/dri/r200/r200_span.c
index 898ff61e76a..9f910ebacca 100644
--- a/src/mesa/drivers/dri/r200/r200_span.c
+++ b/src/mesa/drivers/dri/r200/r200_span.c
@@ -80,13 +80,15 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #define LOCAL_DEPTH_VARS						\
    r200ContextPtr rmesa = R200_CONTEXT(ctx);				\
+   r200ScreenPtr r200Screen = rmesa->r200Screen;			\
    __DRIscreenPrivate *sPriv = rmesa->dri.screen;			\
    __DRIdrawablePrivate *dPriv = rmesa->dri.drawable;			\
    driRenderbuffer *drb = (driRenderbuffer *) rb;			\
    GLuint height = dPriv->h;						\
    GLuint xo = dPriv->x;						\
    GLuint yo = dPriv->y;						\
-   char *buf = (char *)(sPriv->pFB + drb->offset);
+   char *buf = (char *)(sPriv->pFB + drb->offset);			\
+   assert(drb->offset == r200Screen->depthOffset);
 
 #define LOCAL_STENCIL_VARS	LOCAL_DEPTH_VARS