diff options
Diffstat (limited to 'xorg-server/hw/xfree86/ramdac/xf86HWCurs.c')
| -rw-r--r-- | xorg-server/hw/xfree86/ramdac/xf86HWCurs.c | 527 |
1 files changed, 527 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/ramdac/xf86HWCurs.c b/xorg-server/hw/xfree86/ramdac/xf86HWCurs.c new file mode 100644 index 000000000..d10e283d7 --- /dev/null +++ b/xorg-server/hw/xfree86/ramdac/xf86HWCurs.c @@ -0,0 +1,527 @@ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <string.h> + +#include "misc.h" +#include "xf86.h" +#include "xf86_OSproc.h" + +#include <X11/X.h> +#include "scrnintstr.h" +#include "pixmapstr.h" +#include "windowstr.h" +#include "xf86str.h" +#include "cursorstr.h" +#include "mi.h" +#include "mipointer.h" +#include "xf86CursorPriv.h" + +#include "servermd.h" + +#if BITMAP_SCANLINE_PAD == 64 + +#if 1 +/* Cursors might be only 32 wide. Give'em a chance */ +#define SCANLINE CARD32 +#define CUR_BITMAP_SCANLINE_PAD 32 +#define CUR_LOG2_BITMAP_PAD 5 +#define REVERSE_BIT_ORDER(w) xf86ReverseBitOrder(w) +#else +#define SCANLINE CARD64 +#define CUR_BITMAP_SCANLINE_PAD BITMAP_SCANLINE_PAD +#define CUR_LOG2_BITMAP_PAD LOG2_BITMAP_PAD +#define REVERSE_BIT_ORDER(w) xf86CARD64ReverseBits(w) +static CARD64 xf86CARD64ReverseBits(CARD64 w); + +static CARD64 +xf86CARD64ReverseBits(CARD64 w) +{ + unsigned char *p = (unsigned char *)&w; + + p[0] = byte_reversed[p[0]]; + p[1] = byte_reversed[p[1]]; + p[2] = byte_reversed[p[2]]; + p[3] = byte_reversed[p[3]]; + p[4] = byte_reversed[p[4]]; + p[5] = byte_reversed[p[5]]; + p[6] = byte_reversed[p[6]]; + p[7] = byte_reversed[p[7]]; + + return w; +} +#endif + +#else + +#define SCANLINE CARD32 +#define CUR_BITMAP_SCANLINE_PAD BITMAP_SCANLINE_PAD +#define CUR_LOG2_BITMAP_PAD LOG2_BITMAP_PAD +#define REVERSE_BIT_ORDER(w) xf86ReverseBitOrder(w) + +#endif /* BITMAP_SCANLINE_PAD == 64 */ + +static unsigned char* RealizeCursorInterleave0(xf86CursorInfoPtr, CursorPtr); +static unsigned char* RealizeCursorInterleave1(xf86CursorInfoPtr, CursorPtr); +static unsigned char* RealizeCursorInterleave8(xf86CursorInfoPtr, CursorPtr); +static unsigned char* RealizeCursorInterleave16(xf86CursorInfoPtr, CursorPtr); +static unsigned char* RealizeCursorInterleave32(xf86CursorInfoPtr, CursorPtr); +static unsigned char* RealizeCursorInterleave64(xf86CursorInfoPtr, CursorPtr); + +Bool +xf86InitHardwareCursor(ScreenPtr pScreen, xf86CursorInfoPtr infoPtr) +{ + if ((infoPtr->MaxWidth <= 0) || (infoPtr->MaxHeight <= 0)) + return FALSE; + + /* These are required for now */ + if (!infoPtr->SetCursorPosition || + !infoPtr->LoadCursorImage || + !infoPtr->HideCursor || + !infoPtr->ShowCursor || + !infoPtr->SetCursorColors) + return FALSE; + + if (infoPtr->RealizeCursor) { + /* Don't overwrite a driver provided Realize Cursor function */ + } else + if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 & infoPtr->Flags) { + infoPtr->RealizeCursor = RealizeCursorInterleave1; + } else + if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8 & infoPtr->Flags) { + infoPtr->RealizeCursor = RealizeCursorInterleave8; + } else + if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16 & infoPtr->Flags) { + infoPtr->RealizeCursor = RealizeCursorInterleave16; + } else + if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32 & infoPtr->Flags) { + infoPtr->RealizeCursor = RealizeCursorInterleave32; + } else + if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 & infoPtr->Flags) { + infoPtr->RealizeCursor = RealizeCursorInterleave64; + } else { /* not interleaved */ + infoPtr->RealizeCursor = RealizeCursorInterleave0; + } + + infoPtr->pScrn = xf86Screens[pScreen->myNum]; + + return TRUE; +} + +void +xf86SetCursor(ScreenPtr pScreen, CursorPtr pCurs, int x, int y) +{ + xf86CursorScreenPtr ScreenPriv = (xf86CursorScreenPtr)dixLookupPrivate( + &pScreen->devPrivates, xf86CursorScreenKey); + xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr; + unsigned char *bits; + + if (pCurs == NullCursor) { + (*infoPtr->HideCursor)(infoPtr->pScrn); + return; + } + + bits = (unsigned char *)dixLookupPrivate(&pCurs->devPrivates, pScreen); + + x -= infoPtr->pScrn->frameX0 + ScreenPriv->HotX; + y -= infoPtr->pScrn->frameY0 + ScreenPriv->HotY; + +#ifdef ARGB_CURSOR + if (!pCurs->bits->argb || !infoPtr->LoadCursorARGB) +#endif + if (!bits) { + bits = (*infoPtr->RealizeCursor)(infoPtr, pCurs); + dixSetPrivate(&pCurs->devPrivates, pScreen, bits); + } + + if (!(infoPtr->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN)) + (*infoPtr->HideCursor)(infoPtr->pScrn); + +#ifdef ARGB_CURSOR + if (pCurs->bits->argb && infoPtr->LoadCursorARGB) + (*infoPtr->LoadCursorARGB) (infoPtr->pScrn, pCurs); + else +#endif + if (bits) + (*infoPtr->LoadCursorImage)(infoPtr->pScrn, bits); + + xf86RecolorCursor(pScreen, pCurs, 1); + + (*infoPtr->SetCursorPosition)(infoPtr->pScrn, x, y); + + (*infoPtr->ShowCursor)(infoPtr->pScrn); +} + +void +xf86SetTransparentCursor(ScreenPtr pScreen) +{ + xf86CursorScreenPtr ScreenPriv = (xf86CursorScreenPtr)dixLookupPrivate( + &pScreen->devPrivates, xf86CursorScreenKey); + xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr; + + if (!ScreenPriv->transparentData) + ScreenPriv->transparentData = + (*infoPtr->RealizeCursor)(infoPtr, NullCursor); + + if (!(infoPtr->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN)) + (*infoPtr->HideCursor)(infoPtr->pScrn); + + if (ScreenPriv->transparentData) + (*infoPtr->LoadCursorImage)(infoPtr->pScrn, + ScreenPriv->transparentData); + + (*infoPtr->ShowCursor)(infoPtr->pScrn); +} + +void +xf86MoveCursor(ScreenPtr pScreen, int x, int y) +{ + xf86CursorScreenPtr ScreenPriv = (xf86CursorScreenPtr)dixLookupPrivate( + &pScreen->devPrivates, xf86CursorScreenKey); + xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr; + + x -= infoPtr->pScrn->frameX0 + ScreenPriv->HotX; + y -= infoPtr->pScrn->frameY0 + ScreenPriv->HotY; + + (*infoPtr->SetCursorPosition)(infoPtr->pScrn, x, y); +} + +void +xf86RecolorCursor(ScreenPtr pScreen, CursorPtr pCurs, Bool displayed) +{ + xf86CursorScreenPtr ScreenPriv = (xf86CursorScreenPtr)dixLookupPrivate( + &pScreen->devPrivates, xf86CursorScreenKey); + xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr; + +#ifdef ARGB_CURSOR + /* recoloring isn't applicable to ARGB cursors and drivers + shouldn't have to ignore SetCursorColors requests */ + if (pCurs->bits->argb) + return; +#endif + + if (ScreenPriv->PalettedCursor) { + xColorItem sourceColor, maskColor; + ColormapPtr pmap = ScreenPriv->pInstalledMap; + + if (!pmap) + return; + + sourceColor.red = pCurs->foreRed; + sourceColor.green = pCurs->foreGreen; + sourceColor.blue = pCurs->foreBlue; + FakeAllocColor(pmap, &sourceColor); + maskColor.red = pCurs->backRed; + maskColor.green = pCurs->backGreen; + maskColor.blue = pCurs->backBlue; + FakeAllocColor(pmap, &maskColor); + FakeFreeColor(pmap, sourceColor.pixel); + FakeFreeColor(pmap, maskColor.pixel); + (*infoPtr->SetCursorColors)(infoPtr->pScrn, + maskColor.pixel, sourceColor.pixel); + } else { /* Pass colors in 8-8-8 RGB format */ + (*infoPtr->SetCursorColors)(infoPtr->pScrn, + (pCurs->backBlue >> 8) | + ((pCurs->backGreen >> 8) << 8) | + ((pCurs->backRed >> 8) << 16), + (pCurs->foreBlue >> 8) | + ((pCurs->foreGreen >> 8) << 8) | + ((pCurs->foreRed >> 8) << 16) + ); + } +} + +/* These functions assume that MaxWidth is a multiple of 32 */ +static unsigned char* +RealizeCursorInterleave0(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) +{ + + SCANLINE *SrcS, *SrcM, *DstS, *DstM; + SCANLINE *pSrc, *pMsk; + unsigned char *mem; + int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; + int SrcPitch, DstPitch, Pitch, y, x; + /* how many words are in the source or mask */ + int words = size / (CUR_BITMAP_SCANLINE_PAD / 4); + + + if (!(mem = xcalloc(1, size))) + return NULL; + + if (pCurs == NullCursor) { + if (infoPtr->Flags & HARDWARE_CURSOR_INVERT_MASK) { + DstM = (SCANLINE*)mem; + if (!(infoPtr->Flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK)) + DstM += words; + (void)memset(DstM, -1, words * sizeof(SCANLINE)); + } + return mem; + } + + /* SrcPitch == the number of scanlines wide the cursor image is */ + SrcPitch = (pCurs->bits->width + (BITMAP_SCANLINE_PAD - 1)) >> + CUR_LOG2_BITMAP_PAD; + + /* DstPitch is the width of the hw cursor in scanlines */ + DstPitch = infoPtr->MaxWidth >> CUR_LOG2_BITMAP_PAD; + Pitch = SrcPitch < DstPitch ? SrcPitch : DstPitch; + + SrcS = (SCANLINE*)pCurs->bits->source; + SrcM = (SCANLINE*)pCurs->bits->mask; + DstS = (SCANLINE*)mem; + DstM = DstS + words; + + if (infoPtr->Flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK) { + SCANLINE *tmp; + tmp = DstS; DstS = DstM; DstM = tmp; + } + + if (infoPtr->Flags & HARDWARE_CURSOR_AND_SOURCE_WITH_MASK) { + for(y = pCurs->bits->height, pSrc = DstS, pMsk = DstM; + y--; + pSrc+=DstPitch, pMsk+=DstPitch, SrcS+=SrcPitch, SrcM+=SrcPitch) { + for(x = 0; x < Pitch; x++) { + pSrc[x] = SrcS[x] & SrcM[x]; + pMsk[x] = SrcM[x]; + } + } + } else { + for(y = pCurs->bits->height, pSrc = DstS, pMsk = DstM; + y--; + pSrc+=DstPitch, pMsk+=DstPitch, SrcS+=SrcPitch, SrcM+=SrcPitch) { + for(x = 0; x < Pitch; x++) { + pSrc[x] = SrcS[x]; + pMsk[x] = SrcM[x]; + } + } + } + + if (infoPtr->Flags & HARDWARE_CURSOR_NIBBLE_SWAPPED) { + int count = size; + unsigned char* pntr1 = (unsigned char *)DstS; + unsigned char* pntr2 = (unsigned char *)DstM; + unsigned char a, b; + while (count) { + + a = *pntr1; + b = *pntr2; + *pntr1 = ((a & 0xF0) >> 4) | ((a & 0x0F) << 4); + *pntr2 = ((b & 0xF0) >> 4) | ((b & 0x0F) << 4); + pntr1++; pntr2++; + count-=2; + } + } + + /* + * Must be _after_ HARDWARE_CURSOR_AND_SOURCE_WITH_MASK to avoid wiping + * out entire source mask. + */ + if (infoPtr->Flags & HARDWARE_CURSOR_INVERT_MASK) { + int count = words; + SCANLINE* pntr = DstM; + while (count--) { + *pntr = ~(*pntr); + pntr++; + } + } + + if (infoPtr->Flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST) { + for(y = pCurs->bits->height, pSrc = DstS, pMsk = DstM; + y--; + pSrc+=DstPitch, pMsk+=DstPitch) { + for(x = 0; x < Pitch; x++) { + pSrc[x] = REVERSE_BIT_ORDER(pSrc[x]); + pMsk[x] = REVERSE_BIT_ORDER(pMsk[x]); + } + } + } + + return mem; +} + +static unsigned char* +RealizeCursorInterleave1(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) +{ + unsigned char *DstS, *DstM; + unsigned char *pntr; + unsigned char *mem, *mem2; + int count; + int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; + + /* Realize the cursor without interleaving */ + if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) + return NULL; + + if (!(mem = xcalloc(1, size))) { + xfree(mem2); + return NULL; + } + + /* 1 bit interleave */ + DstS = mem2; + DstM = DstS + (size >> 1); + pntr = mem; + count = size; + while (count) { + *pntr++ = ((*DstS&0x01) ) | ((*DstM&0x01) << 1) | + ((*DstS&0x02) << 1) | ((*DstM&0x02) << 2) | + ((*DstS&0x04) << 2) | ((*DstM&0x04) << 3) | + ((*DstS&0x08) << 3) | ((*DstM&0x08) << 4); + *pntr++ = ((*DstS&0x10) >> 4) | ((*DstM&0x10) >> 3) | + ((*DstS&0x20) >> 3) | ((*DstM&0x20) >> 2) | + ((*DstS&0x40) >> 2) | ((*DstM&0x40) >> 1) | + ((*DstS&0x80) >> 1) | ((*DstM&0x80) ); + DstS++; + DstM++; + count-=2; + } + + /* Free the uninterleaved cursor */ + xfree(mem2); + + return mem; +} + +static unsigned char* +RealizeCursorInterleave8(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) +{ + unsigned char *DstS, *DstM; + unsigned char *pntr; + unsigned char *mem, *mem2; + int count; + int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; + + /* Realize the cursor without interleaving */ + if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) + return NULL; + + if (!(mem = xcalloc(1, size))) { + xfree(mem2); + return NULL; + } + + /* 8 bit interleave */ + DstS = mem2; + DstM = DstS + (size >> 1); + pntr = mem; + count = size; + while (count) { + *pntr++ = *DstS++; + *pntr++ = *DstM++; + count-=2; + } + + /* Free the uninterleaved cursor */ + xfree(mem2); + + return mem; +} + +static unsigned char* +RealizeCursorInterleave16(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) +{ + unsigned short *DstS, *DstM; + unsigned short *pntr; + unsigned char *mem, *mem2; + int count; + int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; + + /* Realize the cursor without interleaving */ + if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) + return NULL; + + if (!(mem = xcalloc(1, size))) { + xfree(mem2); + return NULL; + } + + /* 16 bit interleave */ + DstS = (pointer)mem2; + DstM = DstS + (size >> 2); + pntr = (pointer)mem; + count = (size >> 1); + while (count) { + *pntr++ = *DstS++; + *pntr++ = *DstM++; + count-=2; + } + + /* Free the uninterleaved cursor */ + xfree(mem2); + + return mem; +} + +static unsigned char* +RealizeCursorInterleave32(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) +{ + CARD32 *DstS, *DstM; + CARD32 *pntr; + unsigned char *mem, *mem2; + int count; + int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; + + /* Realize the cursor without interleaving */ + if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) + return NULL; + + if (!(mem = xcalloc(1, size))) { + xfree(mem2); + return NULL; + } + + /* 32 bit interleave */ + DstS = (pointer)mem2; + DstM = DstS + (size >> 3); + pntr = (pointer)mem; + count = (size >> 2); + while (count) { + *pntr++ = *DstS++; + *pntr++ = *DstM++; + count-=2; + } + + /* Free the uninterleaved cursor */ + xfree(mem2); + + return mem; +} + +static unsigned char* +RealizeCursorInterleave64(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) +{ + CARD32 *DstS, *DstM; + CARD32 *pntr; + unsigned char *mem, *mem2; + int count; + int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; + + /* Realize the cursor without interleaving */ + if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) + return NULL; + + if (!(mem = xcalloc(1, size))) { + xfree(mem2); + return NULL; + } + + /* 64 bit interleave */ + DstS = (pointer)mem2; + DstM = DstS + (size >> 3); + pntr = (pointer)mem; + count = (size >> 2); + while (count) { + *pntr++ = *DstS++; + *pntr++ = *DstS++; + *pntr++ = *DstM++; + *pntr++ = *DstM++; + count-=4; + } + + /* Free the uninterleaved cursor */ + xfree(mem2); + + return mem; +} |