On 01/28/2015 03:36 AM, Jason Ekstrand wrote: > https://bugs.freedesktop.org/show_bug.cgi?id=88841 > --- > src/mesa/drivers/dri/i965/intel_pixel_read.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/src/mesa/drivers/dri/i965/intel_pixel_read.c > b/src/mesa/drivers/dri/i965/intel_pixel_read.c > index babf8ca..198d616 100644 > --- a/src/mesa/drivers/dri/i965/intel_pixel_read.c > +++ b/src/mesa/drivers/dri/i965/intel_pixel_read.c > @@ -155,6 +155,17 @@ intel_readpixels_tiled_memcpy(struct gl_context * ctx, > > dst_pitch = _mesa_image_row_stride(pack, width, format, type); > > + /* For a window-system renderbuffer, the buffer is actually flipped > + * vertically, so we need to handle that. Because we don't want to > + * mess up the detiling, we mangle the height and pixels pointer and > + * give the detiling function a negative pitch. > + */ > + if (rb->Name == 0) { > + yoffset = rb->Height - yoffset - height; > + pixels += (ptrdiff_t) (height - 1) * dst_pitch; > + dst_pitch = -dst_pitch; > + } > + > /* We postponed printing this message until having committed to executing > * the function. > */ >
Reviewed-by: Chad Versace <chad.vers...@intel.com>
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