552 lines
16 KiB
C
552 lines
16 KiB
C
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <string.h>
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#include "misc.h"
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#include "xf86.h"
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#include "xf86_OSproc.h"
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#include <X11/X.h>
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#include "scrnintstr.h"
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#include "pixmapstr.h"
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#include "windowstr.h"
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#include "xf86str.h"
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#include "cursorstr.h"
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#include "mi.h"
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#include "mipointer.h"
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#include "xf86CursorPriv.h"
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#include "servermd.h"
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static CARD32
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xf86ReverseBitOrder(CARD32 v)
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{
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return (((0x01010101 & v) << 7) | ((0x02020202 & v) << 5) |
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((0x04040404 & v) << 3) | ((0x08080808 & v) << 1) |
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((0x10101010 & v) >> 1) | ((0x20202020 & v) >> 3) |
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((0x40404040 & v) >> 5) | ((0x80808080 & v) >> 7));
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}
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#if BITMAP_SCANLINE_PAD == 64
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#if 1
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/* Cursors might be only 32 wide. Give'em a chance */
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#define SCANLINE CARD32
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#define CUR_BITMAP_SCANLINE_PAD 32
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#define CUR_LOG2_BITMAP_PAD 5
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#define REVERSE_BIT_ORDER(w) xf86ReverseBitOrder(w)
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#else
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#define SCANLINE CARD64
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#define CUR_BITMAP_SCANLINE_PAD BITMAP_SCANLINE_PAD
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#define CUR_LOG2_BITMAP_PAD LOG2_BITMAP_PAD
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#define REVERSE_BIT_ORDER(w) xf86CARD64ReverseBits(w)
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static CARD64 xf86CARD64ReverseBits(CARD64 w);
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static CARD64
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xf86CARD64ReverseBits(CARD64 w)
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{
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unsigned char *p = (unsigned char *) &w;
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p[0] = byte_reversed[p[0]];
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p[1] = byte_reversed[p[1]];
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p[2] = byte_reversed[p[2]];
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p[3] = byte_reversed[p[3]];
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p[4] = byte_reversed[p[4]];
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p[5] = byte_reversed[p[5]];
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p[6] = byte_reversed[p[6]];
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p[7] = byte_reversed[p[7]];
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return w;
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}
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#endif
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#else
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#define SCANLINE CARD32
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#define CUR_BITMAP_SCANLINE_PAD BITMAP_SCANLINE_PAD
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#define CUR_LOG2_BITMAP_PAD LOG2_BITMAP_PAD
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#define REVERSE_BIT_ORDER(w) xf86ReverseBitOrder(w)
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#endif /* BITMAP_SCANLINE_PAD == 64 */
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static unsigned char *RealizeCursorInterleave0(xf86CursorInfoPtr, CursorPtr);
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static unsigned char *RealizeCursorInterleave1(xf86CursorInfoPtr, CursorPtr);
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static unsigned char *RealizeCursorInterleave8(xf86CursorInfoPtr, CursorPtr);
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static unsigned char *RealizeCursorInterleave16(xf86CursorInfoPtr, CursorPtr);
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static unsigned char *RealizeCursorInterleave32(xf86CursorInfoPtr, CursorPtr);
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static unsigned char *RealizeCursorInterleave64(xf86CursorInfoPtr, CursorPtr);
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Bool
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xf86InitHardwareCursor(ScreenPtr pScreen, xf86CursorInfoPtr infoPtr)
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{
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if ((infoPtr->MaxWidth <= 0) || (infoPtr->MaxHeight <= 0))
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return FALSE;
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/* These are required for now */
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if (!infoPtr->SetCursorPosition ||
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!infoPtr->LoadCursorImage ||
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!infoPtr->HideCursor ||
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!infoPtr->ShowCursor || !infoPtr->SetCursorColors)
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return FALSE;
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if (infoPtr->RealizeCursor) {
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/* Don't overwrite a driver provided Realize Cursor function */
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}
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else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 & infoPtr->Flags) {
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infoPtr->RealizeCursor = RealizeCursorInterleave1;
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}
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else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8 & infoPtr->Flags) {
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infoPtr->RealizeCursor = RealizeCursorInterleave8;
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}
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else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16 & infoPtr->Flags) {
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infoPtr->RealizeCursor = RealizeCursorInterleave16;
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}
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else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32 & infoPtr->Flags) {
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infoPtr->RealizeCursor = RealizeCursorInterleave32;
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}
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else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 & infoPtr->Flags) {
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infoPtr->RealizeCursor = RealizeCursorInterleave64;
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}
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else { /* not interleaved */
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infoPtr->RealizeCursor = RealizeCursorInterleave0;
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}
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infoPtr->pScrn = xf86ScreenToScrn(pScreen);
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return TRUE;
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}
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void
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xf86SetCursor(ScreenPtr pScreen, CursorPtr pCurs, int x, int y)
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{
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xf86CursorScreenPtr ScreenPriv =
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(xf86CursorScreenPtr) dixLookupPrivate(&pScreen->devPrivates,
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xf86CursorScreenKey);
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xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr;
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unsigned char *bits;
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if (pCurs == NullCursor) {
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(*infoPtr->HideCursor) (infoPtr->pScrn);
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return;
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}
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bits =
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dixLookupScreenPrivate(&pCurs->devPrivates, CursorScreenKey, pScreen);
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x -= infoPtr->pScrn->frameX0 + ScreenPriv->HotX;
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y -= infoPtr->pScrn->frameY0 + ScreenPriv->HotY;
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#ifdef ARGB_CURSOR
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if (!pCurs->bits->argb || !infoPtr->LoadCursorARGB)
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#endif
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if (!bits) {
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bits = (*infoPtr->RealizeCursor) (infoPtr, pCurs);
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dixSetScreenPrivate(&pCurs->devPrivates, CursorScreenKey, pScreen,
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bits);
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}
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if (!(infoPtr->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN))
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(*infoPtr->HideCursor) (infoPtr->pScrn);
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#ifdef ARGB_CURSOR
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if (pCurs->bits->argb && infoPtr->LoadCursorARGB)
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(*infoPtr->LoadCursorARGB) (infoPtr->pScrn, pCurs);
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else
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#endif
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if (bits)
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(*infoPtr->LoadCursorImage) (infoPtr->pScrn, bits);
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xf86RecolorCursor(pScreen, pCurs, 1);
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(*infoPtr->SetCursorPosition) (infoPtr->pScrn, x, y);
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(*infoPtr->ShowCursor) (infoPtr->pScrn);
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}
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void
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xf86SetTransparentCursor(ScreenPtr pScreen)
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{
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xf86CursorScreenPtr ScreenPriv =
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(xf86CursorScreenPtr) dixLookupPrivate(&pScreen->devPrivates,
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xf86CursorScreenKey);
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xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr;
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if (!ScreenPriv->transparentData)
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ScreenPriv->transparentData =
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(*infoPtr->RealizeCursor) (infoPtr, NullCursor);
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if (!(infoPtr->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN))
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(*infoPtr->HideCursor) (infoPtr->pScrn);
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if (ScreenPriv->transparentData)
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(*infoPtr->LoadCursorImage) (infoPtr->pScrn,
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ScreenPriv->transparentData);
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(*infoPtr->ShowCursor) (infoPtr->pScrn);
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}
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void
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xf86MoveCursor(ScreenPtr pScreen, int x, int y)
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{
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xf86CursorScreenPtr ScreenPriv =
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(xf86CursorScreenPtr) dixLookupPrivate(&pScreen->devPrivates,
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xf86CursorScreenKey);
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xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr;
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x -= infoPtr->pScrn->frameX0 + ScreenPriv->HotX;
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y -= infoPtr->pScrn->frameY0 + ScreenPriv->HotY;
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(*infoPtr->SetCursorPosition) (infoPtr->pScrn, x, y);
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}
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void
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xf86RecolorCursor(ScreenPtr pScreen, CursorPtr pCurs, Bool displayed)
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{
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xf86CursorScreenPtr ScreenPriv =
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(xf86CursorScreenPtr) dixLookupPrivate(&pScreen->devPrivates,
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xf86CursorScreenKey);
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xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr;
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#ifdef ARGB_CURSOR
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/* recoloring isn't applicable to ARGB cursors and drivers
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shouldn't have to ignore SetCursorColors requests */
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if (pCurs->bits->argb)
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return;
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#endif
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if (ScreenPriv->PalettedCursor) {
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xColorItem sourceColor, maskColor;
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ColormapPtr pmap = ScreenPriv->pInstalledMap;
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if (!pmap)
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return;
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sourceColor.red = pCurs->foreRed;
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sourceColor.green = pCurs->foreGreen;
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sourceColor.blue = pCurs->foreBlue;
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FakeAllocColor(pmap, &sourceColor);
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maskColor.red = pCurs->backRed;
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maskColor.green = pCurs->backGreen;
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maskColor.blue = pCurs->backBlue;
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FakeAllocColor(pmap, &maskColor);
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FakeFreeColor(pmap, sourceColor.pixel);
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FakeFreeColor(pmap, maskColor.pixel);
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(*infoPtr->SetCursorColors) (infoPtr->pScrn,
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maskColor.pixel, sourceColor.pixel);
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}
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else { /* Pass colors in 8-8-8 RGB format */
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(*infoPtr->SetCursorColors) (infoPtr->pScrn,
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(pCurs->backBlue >> 8) |
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((pCurs->backGreen >> 8) << 8) |
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((pCurs->backRed >> 8) << 16),
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(pCurs->foreBlue >> 8) |
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((pCurs->foreGreen >> 8) << 8) |
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((pCurs->foreRed >> 8) << 16)
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);
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}
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}
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/* These functions assume that MaxWidth is a multiple of 32 */
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static unsigned char *
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RealizeCursorInterleave0(xf86CursorInfoPtr infoPtr, CursorPtr pCurs)
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{
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SCANLINE *SrcS, *SrcM, *DstS, *DstM;
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SCANLINE *pSrc, *pMsk;
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unsigned char *mem;
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int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2;
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int SrcPitch, DstPitch, Pitch, y, x;
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/* how many words are in the source or mask */
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int words = size / (CUR_BITMAP_SCANLINE_PAD / 4);
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if (!(mem = calloc(1, size)))
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return NULL;
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if (pCurs == NullCursor) {
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if (infoPtr->Flags & HARDWARE_CURSOR_INVERT_MASK) {
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DstM = (SCANLINE *) mem;
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if (!(infoPtr->Flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK))
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DstM += words;
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memset(DstM, -1, words * sizeof(SCANLINE));
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}
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return mem;
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}
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/* SrcPitch == the number of scanlines wide the cursor image is */
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SrcPitch = (pCurs->bits->width + (BITMAP_SCANLINE_PAD - 1)) >>
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CUR_LOG2_BITMAP_PAD;
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/* DstPitch is the width of the hw cursor in scanlines */
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DstPitch = infoPtr->MaxWidth >> CUR_LOG2_BITMAP_PAD;
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Pitch = SrcPitch < DstPitch ? SrcPitch : DstPitch;
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SrcS = (SCANLINE *) pCurs->bits->source;
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SrcM = (SCANLINE *) pCurs->bits->mask;
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DstS = (SCANLINE *) mem;
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DstM = DstS + words;
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if (infoPtr->Flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK) {
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SCANLINE *tmp;
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tmp = DstS;
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DstS = DstM;
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DstM = tmp;
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}
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if (infoPtr->Flags & HARDWARE_CURSOR_AND_SOURCE_WITH_MASK) {
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for (y = pCurs->bits->height, pSrc = DstS, pMsk = DstM;
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y--;
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pSrc += DstPitch, pMsk += DstPitch, SrcS += SrcPitch, SrcM +=
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SrcPitch) {
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for (x = 0; x < Pitch; x++) {
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pSrc[x] = SrcS[x] & SrcM[x];
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pMsk[x] = SrcM[x];
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}
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}
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}
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else {
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for (y = pCurs->bits->height, pSrc = DstS, pMsk = DstM;
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y--;
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pSrc += DstPitch, pMsk += DstPitch, SrcS += SrcPitch, SrcM +=
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SrcPitch) {
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for (x = 0; x < Pitch; x++) {
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pSrc[x] = SrcS[x];
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pMsk[x] = SrcM[x];
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}
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}
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}
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if (infoPtr->Flags & HARDWARE_CURSOR_NIBBLE_SWAPPED) {
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int count = size;
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unsigned char *pntr1 = (unsigned char *) DstS;
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unsigned char *pntr2 = (unsigned char *) DstM;
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unsigned char a, b;
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while (count) {
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a = *pntr1;
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b = *pntr2;
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*pntr1 = ((a & 0xF0) >> 4) | ((a & 0x0F) << 4);
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*pntr2 = ((b & 0xF0) >> 4) | ((b & 0x0F) << 4);
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pntr1++;
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pntr2++;
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count -= 2;
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}
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}
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/*
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* Must be _after_ HARDWARE_CURSOR_AND_SOURCE_WITH_MASK to avoid wiping
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* out entire source mask.
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*/
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if (infoPtr->Flags & HARDWARE_CURSOR_INVERT_MASK) {
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int count = words;
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SCANLINE *pntr = DstM;
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while (count--) {
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*pntr = ~(*pntr);
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pntr++;
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}
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}
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if (infoPtr->Flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST) {
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for (y = pCurs->bits->height, pSrc = DstS, pMsk = DstM;
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y--; pSrc += DstPitch, pMsk += DstPitch) {
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for (x = 0; x < Pitch; x++) {
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pSrc[x] = REVERSE_BIT_ORDER(pSrc[x]);
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pMsk[x] = REVERSE_BIT_ORDER(pMsk[x]);
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}
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}
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}
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return mem;
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}
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static unsigned char *
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RealizeCursorInterleave1(xf86CursorInfoPtr infoPtr, CursorPtr pCurs)
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{
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unsigned char *DstS, *DstM;
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unsigned char *pntr;
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unsigned char *mem, *mem2;
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int count;
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int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2;
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/* Realize the cursor without interleaving */
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if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs)))
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return NULL;
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if (!(mem = calloc(1, size))) {
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free(mem2);
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return NULL;
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}
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/* 1 bit interleave */
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DstS = mem2;
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DstM = DstS + (size >> 1);
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pntr = mem;
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count = size;
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while (count) {
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*pntr++ = ((*DstS & 0x01)) | ((*DstM & 0x01) << 1) |
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((*DstS & 0x02) << 1) | ((*DstM & 0x02) << 2) |
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((*DstS & 0x04) << 2) | ((*DstM & 0x04) << 3) |
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((*DstS & 0x08) << 3) | ((*DstM & 0x08) << 4);
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*pntr++ = ((*DstS & 0x10) >> 4) | ((*DstM & 0x10) >> 3) |
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((*DstS & 0x20) >> 3) | ((*DstM & 0x20) >> 2) |
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((*DstS & 0x40) >> 2) | ((*DstM & 0x40) >> 1) |
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((*DstS & 0x80) >> 1) | ((*DstM & 0x80));
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DstS++;
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DstM++;
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count -= 2;
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}
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/* Free the uninterleaved cursor */
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free(mem2);
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return mem;
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}
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static unsigned char *
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RealizeCursorInterleave8(xf86CursorInfoPtr infoPtr, CursorPtr pCurs)
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{
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unsigned char *DstS, *DstM;
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unsigned char *pntr;
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unsigned char *mem, *mem2;
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int count;
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int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2;
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/* Realize the cursor without interleaving */
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if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs)))
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return NULL;
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if (!(mem = calloc(1, size))) {
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free(mem2);
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return NULL;
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}
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/* 8 bit interleave */
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DstS = mem2;
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DstM = DstS + (size >> 1);
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pntr = mem;
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count = size;
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while (count) {
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*pntr++ = *DstS++;
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*pntr++ = *DstM++;
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count -= 2;
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}
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/* Free the uninterleaved cursor */
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free(mem2);
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return mem;
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}
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static unsigned char *
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RealizeCursorInterleave16(xf86CursorInfoPtr infoPtr, CursorPtr pCurs)
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{
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unsigned short *DstS, *DstM;
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unsigned short *pntr;
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unsigned char *mem, *mem2;
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int count;
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int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2;
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/* Realize the cursor without interleaving */
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if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs)))
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return NULL;
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if (!(mem = calloc(1, size))) {
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free(mem2);
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return NULL;
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}
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/* 16 bit interleave */
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DstS = (pointer) mem2;
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DstM = DstS + (size >> 2);
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pntr = (pointer) mem;
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count = (size >> 1);
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while (count) {
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*pntr++ = *DstS++;
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*pntr++ = *DstM++;
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count -= 2;
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}
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/* Free the uninterleaved cursor */
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free(mem2);
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return mem;
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}
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static unsigned char *
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RealizeCursorInterleave32(xf86CursorInfoPtr infoPtr, CursorPtr pCurs)
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{
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CARD32 *DstS, *DstM;
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CARD32 *pntr;
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unsigned char *mem, *mem2;
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int count;
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int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2;
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/* Realize the cursor without interleaving */
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if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs)))
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return NULL;
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if (!(mem = calloc(1, size))) {
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free(mem2);
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|
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 */
|
|
free(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 = calloc(1, size))) {
|
|
free(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 */
|
|
free(mem2);
|
|
|
|
return mem;
|
|
}
|