Module: Mesa Branch: master Commit: a1488eec38d5a76f4e04245a6ce8302444800805 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a1488eec38d5a76f4e04245a6ce8302444800805
Author: Eric Anholt <[email protected]> Date: Mon Oct 31 16:59:05 2011 -0700 intel: Add safety asserts for the blit engine's pitch alignment requirements. Reviewed-by: Brian Paul <[email protected]> --- src/mesa/drivers/dri/intel/intel_blit.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/src/mesa/drivers/dri/intel/intel_blit.c b/src/mesa/drivers/dri/intel/intel_blit.c index def226c..8d7693d 100644 --- a/src/mesa/drivers/dri/intel/intel_blit.c +++ b/src/mesa/drivers/dri/intel/intel_blit.c @@ -146,6 +146,12 @@ intelEmitCopyBlit(struct intel_context *intel, src_pitch *= cpp; dst_pitch *= cpp; + /* Blit pitch must be dword-aligned. Otherwise, the hardware appears to drop + * the low bits. + */ + assert(src_pitch % 4 == 0); + assert(dst_pitch % 4 == 0); + /* For big formats (such as floating point), do the copy using 32bpp and * multiply the coordinates. */ _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
