Refactor PBO validate/map code.

We always need to do PBO validation, so do that in core Mesa before calling driv
er routine.
cherry-picked from Mesa/master.

1 files changed, 1 insertions, 3 deletions

diff --git a/src/mesa/state_tracker/st_cb_readpixels.c b/src/mesa/state_tracker/st_cb_readpixels.c
index b22e846a157..4cf9adcd28a 100644
--- a/src/mesa/state_tracker/st_cb_readpixels.c
+++ b/src/mesa/state_tracker/st_cb_readpixels.c
@@ -155,9 +155,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
       return;
    }
 
-   dest = _mesa_validate_and_map_readpix_pbo(ctx, x, y, width, height,
-                                             format, type,
-                                             &clippedPacking, dest);
+   dest = _mesa_map_readpix_pbo(ctx, &clippedPacking, dest);
    if (!dest)
       return;