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#ifndef _MGA_MACROS_H_
#define _MGA_MACROS_H_
#ifndef PSZ
#define PSZ 8
#endif
#if PSZ == 8
#define REPLICATE(r) r &= 0xFF; r |= r << 8; r |= r << 16
#elif PSZ == 16
#define REPLICATE(r) r &= 0xFFFF; r |= r << 16
#elif PSZ == 24
#define REPLICATE(r) r &= 0xFFFFFF; r |= r << 24
#else
#define REPLICATE(r) /* */
#endif
#define RGBEQUAL(c) (!((((c) >> 8) ^ (c)) & 0xffff))
#ifdef XF86DRI
#define MGA_SYNC_XTAG 0x275f4200
#define MGABUSYWAIT() do { \
OUTREG(MGAREG_DWGSYNC, MGA_SYNC_XTAG); \
while(INREG(MGAREG_DWGSYNC) != MGA_SYNC_XTAG) ; \
}while(0);
#endif
#define MGAISBUSY() (INREG8(MGAREG_Status + 2) & 0x01)
#define WAITFIFO(cnt) \
if(!pMga->UsePCIRetry) {\
register int n = cnt; \
if(n > pMga->FifoSize) n = pMga->FifoSize; \
while(pMga->fifoCount < (n))\
pMga->fifoCount = INREG8(MGAREG_FIFOSTATUS);\
pMga->fifoCount -= n;\
}
#define XYADDRESS(x,y) \
((y) * pMga->CurrentLayout.displayWidth + (x) + pMga->YDstOrg)
#define MAKEDMAINDEX(index) ((((index) >> 2) & 0x7f) | (((index) >> 6) & 0x80))
#define DMAINDICES(one,two,three,four) \
( MAKEDMAINDEX(one) | \
(MAKEDMAINDEX(two) << 8) | \
(MAKEDMAINDEX(three) << 16) | \
(MAKEDMAINDEX(four) << 24) )
#if PSZ == 24
#define SET_PLANEMASK(p) /**/
#else
#define SET_PLANEMASK(p) \
if(!(pMga->AccelFlags & MGA_NO_PLANEMASK) && ((p) != pMga->PlaneMask)) { \
pMga->PlaneMask = (p); \
REPLICATE((p)); \
OUTREG(MGAREG_PLNWT,(p)); \
}
#endif
#define SET_FOREGROUND(c) \
if((c) != pMga->FgColor) { \
pMga->FgColor = (c); \
REPLICATE((c)); \
OUTREG(MGAREG_FCOL,(c)); \
}
#define SET_BACKGROUND(c) \
if((c) != pMga->BgColor) { \
pMga->BgColor = (c); \
REPLICATE((c)); \
OUTREG(MGAREG_BCOL,(c)); \
}
#define DISABLE_CLIP() { \
pMga->AccelFlags &= ~CLIPPER_ON; \
WAITFIFO(1); \
OUTREG(MGAREG_CXBNDRY, 0xFFFF0000); }
#ifdef XF86DRI
#define CHECK_DMA_QUIESCENT(pMGA, pScrn) { \
if (!pMGA->haveQuiescense) { \
pMGA->GetQuiescence( pScrn ); \
} \
}
#else
#define CHECK_DMA_QUIESCENT(pMGA, pScrn)
#endif
#ifdef USEMGAHAL
#define HAL_CHIPSETS ((pMga->Chipset == PCI_CHIP_MGAG200_PCI) || \
(pMga->Chipset == PCI_CHIP_MGAG200) || \
(pMga->Chipset == PCI_CHIP_MGAG400) || \
(pMga->Chipset == PCI_CHIP_MGAG550))
#define MGA_HAL(x) { \
MGAPtr pMga = MGAPTR(pScrn); \
if (pMga->HALLoaded && HAL_CHIPSETS) { x; } \
}
#define MGA_NOT_HAL(x) { \
MGAPtr pMga = MGAPTR(pScrn); \
if (!pMga->HALLoaded || !HAL_CHIPSETS) { x; } \
}
#else
#define MGA_NOT_HAL(x) { x; }
#endif
#define MGAISGx50(x) ( (((x)->Chipset == PCI_CHIP_MGAG400) && ((x)->ChipRev >= 0x80)) || \
((x)->Chipset == PCI_CHIP_MGAG550) )
#define MGA_DH_NEEDS_HAL(x) (((x)->Chipset == PCI_CHIP_MGAG400) && \
((x)->ChipRev < 0x80))
#endif /* _MGA_MACROS_H_ */
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