1 files changed, 7 insertions, 4 deletions

diff --git a/mesalib/src/mesa/swrast/s_stencil.c b/mesalib/src/mesa/swrast/s_stencil.c
index fb95ef14d..bbfbf44cc 100644
--- a/mesalib/src/mesa/swrast/s_stencil.c
+++ b/mesalib/src/mesa/swrast/s_stencil.c
@@ -292,12 +292,13 @@ get_s8_values(struct gl_context *ctx, struct gl_renderbuffer *rb,
               GLuint count, const GLint x[], const GLint y[],
               GLubyte stencil[])
 {
+   struct swrast_renderbuffer *srb = swrast_renderbuffer(rb);
    const GLint w = rb->Width, h = rb->Height;
-   const GLubyte *map = (const GLubyte *) rb->Data;
+   const GLubyte *map = _swrast_pixel_address(rb, 0, 0);
    GLuint i;
 
    if (rb->Format == MESA_FORMAT_S8) {
-      const GLint rowStride = rb->RowStride;
+      const GLint rowStride = srb->RowStride;
       for (i = 0; i < count; i++) {
          if (x[i] >= 0 && y[i] >= 0 && x[i] < w && y[i] < h) {
             stencil[i] = *(map + y[i] * rowStride + x[i]);
@@ -306,7 +307,7 @@ get_s8_values(struct gl_context *ctx, struct gl_renderbuffer *rb,
    }
    else {
       const GLint bpp = _mesa_get_format_bytes(rb->Format);
-      const GLint rowStride = rb->RowStride * bpp;
+      const GLint rowStride = srb->RowStride;
       for (i = 0; i < count; i++) {
          if (x[i] >= 0 && y[i] >= 0 && x[i] < w && y[i] < h) {
             const GLubyte *src = map + y[i] * rowStride + x[i] * bpp;
@@ -326,12 +327,14 @@ put_s8_values(struct gl_context *ctx, struct gl_renderbuffer *rb,
               const GLubyte stencil[])
 {
    const GLint w = rb->Width, h = rb->Height;
+   gl_pack_ubyte_stencil_func pack_stencil =
+      _mesa_get_pack_ubyte_stencil_func(rb->Format);
    GLuint i;
 
    for (i = 0; i < count; i++) {
       if (x[i] >= 0 && y[i] >= 0 && x[i] < w && y[i] < h) {
          GLubyte *dst = _swrast_pixel_address(rb, x[i], y[i]);
-         _mesa_pack_ubyte_stencil_row(rb->Format, 1, &stencil[i], dst);
+         pack_stencil(&stencil[i], dst);
       }
    }
 }