---
 src/mesa/swrast/s_readpix.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c
index 54f42db..3cef730 100644
--- a/src/mesa/swrast/s_readpix.c
+++ b/src/mesa/swrast/s_readpix.c
@@ -236,6 +236,7 @@ slow_read_rgba_pixels( struct gl_context *ctx,
                       GLbitfield transferOps )
 {
    struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
+   const gl_format rbFormat = _mesa_get_srgb_format_linear(rb->Format);
    union {
       float f[MAX_WIDTH][4];
       unsigned int i[MAX_WIDTH][4];
@@ -252,11 +253,10 @@ slow_read_rgba_pixels( struct gl_context *ctx,
 
    for (j = 0; j < height; j++) {
       if (_mesa_is_integer_format(format)) {
-        _mesa_unpack_int_rgba_row(rb->Format, width, map, rgba.i);
+        _mesa_unpack_int_rgba_row(rbFormat, width, map, rgba.i);
         _mesa_pack_rgba_span_int(ctx, width, rgba.i, format, type, dst);
       } else {
-        _mesa_unpack_rgba_row(_mesa_get_srgb_format_linear(rb->Format),
-                              width, map, rgba.f);
+        _mesa_unpack_rgba_row(rbFormat, width, map, rgba.f);
         _mesa_pack_rgba_span_float(ctx, width, rgba.f, format, type, dst,
                                    packing, transferOps);
       }
-- 
1.7.3.4

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