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-rw-r--r--src/mesa/state_tracker/st_cb_drawpixels.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index f9f139ff07..8926aa38a2 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -640,6 +640,9 @@ draw_stencil_pixels(GLcontext *ctx, GLint x, GLint y,
stmap = screen->transfer_map(screen, pt);
+ pixels = _mesa_map_drawpix_pbo(ctx, unpack, pixels);
+ assert(pixels);
+
/* if width > MAX_WIDTH, have to process image in chunks */
skipPixels = 0;
while (skipPixels < width) {
@@ -705,6 +708,8 @@ draw_stencil_pixels(GLcontext *ctx, GLint x, GLint y,
skipPixels += spanWidth;
}
+ _mesa_unmap_drawpix_pbo(ctx, unpack);
+
/* unmap the stencil buffer */
screen->transfer_unmap(screen, pt);
screen->tex_transfer_destroy(pt);