Linear Expansion doesn't work on BE as the bit order in a word is reversed. ScreenToScreenColorExpansion allows to adjust the bit order in a byte, still the bytes have the wrong order.
Signed-off-by: Egbert Eich <[email protected]> --- src/mga.h | 5 +++++ src/mga_storm.c | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/src/mga.h b/src/mga.h index 34695c1..7c3f840 100644 --- a/src/mga.h +++ b/src/mga.h @@ -688,7 +688,12 @@ extern CARD32 MGAAtypeNoBLK[16]; #define NICE_DASH_PATTERN 0x00000020 #define TWO_PASS_COLOR_EXPAND 0x00000040 #define MGA_NO_PLANEMASK 0x00000080 +/* linear expansion doesn't work on BE due to wrong byte order */ +#if X_BYTE_ORDER != X_BIG_ENDIAN #define USE_LINEAR_EXPANSION 0x00000100 +#else +#define USE_LINEAR_EXPANSION 0x00000000 +#endif #define LARGE_ADDRESSES 0x00000200 #define MGAIOMAPSIZE 0x00004000 diff --git a/src/mga_storm.c b/src/mga_storm.c index fb0e7be..84a4c8c 100644 --- a/src/mga_storm.c +++ b/src/mga_storm.c @@ -710,7 +710,11 @@ Bool mgaAccelInit( ScreenPtr pScreen ) /* screen to screen color expansion */ if(pMga->AccelFlags & USE_LINEAR_EXPANSION) { infoPtr->ScreenToScreenColorExpandFillFlags = +#if X_BYTE_ORDER == X_BIG_ENDIAN + BIT_ORDER_IN_BYTE_MSBFIRST; +#else BIT_ORDER_IN_BYTE_LSBFIRST; +#endif infoPtr->SetupForScreenToScreenColorExpandFill = mgaSetupForScreenToScreenColorExpandFill; infoPtr->SubsequentScreenToScreenColorExpandFill = -- 1.8.1.4 _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
