452 lines
11 KiB
C
452 lines
11 KiB
C
/*
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* Copyright 2001 by Alan Hourihane, Sychdyn, North Wales, UK.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Alan Hourihane not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Alan Hourihane makes no representations
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* about the suitability of this software for any purpose. It is provided
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* "as is" without express or implied warranty.
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*
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* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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* Authors: Alan Hourihane, <alanh@fairlite.demon.co.uk>
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*/
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#ifdef HAVE_CONFIG_H
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#include <kdrive-config.h>
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#endif
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#include "pcmcia.h"
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#include "cursorstr.h"
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#define SetupCursor(s) KdScreenPriv(s); \
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pcmciaCardInfo(pScreenPriv); \
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pcmciaScreenInfo(pScreenPriv); \
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pcmciaCursor *pCurPriv = &pcmcias->cursor
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static void
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_pcmciaMoveCursor (ScreenPtr pScreen, int x, int y)
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{
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SetupCursor(pScreen);
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CARD8 xlow, xhigh, ylow, yhigh;
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CARD8 xoff, yoff;
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x -= pCurPriv->xhot;
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xoff = 0;
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if (x < 0)
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{
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xoff = -x;
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x = 0;
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}
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y -= pCurPriv->yhot;
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yoff = 0;
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if (y < 0)
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{
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yoff = -y;
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y = 0;
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}
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/* This is the recommended order to move the cursor */
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if (pcmciac->HP) {
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xlow = (CARD8) x;
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xhigh = (CARD8) (x >> 8);
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ylow = (CARD8) y;
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yhigh = (CARD8) (y >> 8);
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x40, xlow);
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x41, xhigh);
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x42, ylow);
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x43, yhigh);
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x46, xoff);
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x47, yoff);
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} else {
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x >>= 3;
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y >>= 3;
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xlow = (CARD8) x;
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xhigh = (CARD8) (x >> 8);
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ylow = (CARD8) y;
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yhigh = (CARD8) (y >> 8);
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/* Don't be alarmed, yes the upper 3bits of the index are correct */
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pcmciaWriteIndex (pcmciac, 0x3c4, 0x10 | xhigh << 5, xlow);
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pcmciaWriteIndex (pcmciac, 0x3c4, 0x11 | yhigh << 5, ylow);
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}
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}
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static void
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pcmciaMoveCursor (ScreenPtr pScreen, int x, int y)
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{
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SetupCursor (pScreen);
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if (!pCurPriv->has_cursor)
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return;
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if (!pScreenPriv->enabled)
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return;
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_pcmciaMoveCursor (pScreen, x, y);
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}
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static void
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pcmciaAllocCursorColors (ScreenPtr pScreen)
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{
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SetupCursor (pScreen);
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CursorPtr pCursor = pCurPriv->pCursor;
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KdAllocateCursorPixels (pScreen, 0, pCursor,
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&pCurPriv->source, &pCurPriv->mask);
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switch (pScreenPriv->screen->fb[0].bitsPerPixel) {
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case 4:
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pCurPriv->source |= pCurPriv->source << 4;
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pCurPriv->mask |= pCurPriv->mask << 4;
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case 8:
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pCurPriv->source |= pCurPriv->source << 8;
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pCurPriv->mask |= pCurPriv->mask << 8;
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case 16:
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pCurPriv->source |= pCurPriv->source << 16;
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pCurPriv->mask |= pCurPriv->mask << 16;
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}
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}
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static void
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pcmciaSetCursorColors (ScreenPtr pScreen)
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{
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SetupCursor (pScreen);
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CursorPtr pCursor = pCurPriv->pCursor;
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CARD32 fg, bg;
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fg = pCurPriv->source;
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bg = pCurPriv->mask;
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if (pcmciac->HP) {
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/*
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* This trident chip uses the palette for it's cursor colors - ouch!
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* We enforce it to always stay the black/white colors as we don't
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* want it to muck with the overscan color. Tough. Use softCursor
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* if you want to change cursor colors.
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*/
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pcmciaWriteReg (pcmciac, 0x3c8, 0xff); /* DAC 0 */
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pcmciaWriteReg (pcmciac, 0x3c9, 0x00);
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pcmciaWriteReg (pcmciac, 0x3c9, 0x00);
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pcmciaWriteReg (pcmciac, 0x3c9, 0x00);
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pcmciaWriteReg (pcmciac, 0x3c8, 0x00); /* DAC 255 */
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pcmciaWriteReg (pcmciac, 0x3c9, 0x3f);
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pcmciaWriteReg (pcmciac, 0x3c9, 0x3f);
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pcmciaWriteReg (pcmciac, 0x3c9, 0x3f);
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} else {
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CARD8 temp;
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temp = pcmciaReadIndex(pcmciac, 0x3c4, 0x12);
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pcmciaWriteIndex (pcmciac, 0x3c4, 0x12, (temp & 0xFE) | 0x02);
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pcmciaWriteReg (pcmciac, 0x3c8, 0x00); /* DAC 256 */
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pcmciaWriteReg (pcmciac, 0x3c9, fg);
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pcmciaWriteReg (pcmciac, 0x3c9, fg >> 8);
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pcmciaWriteReg (pcmciac, 0x3c9, fg >> 16);
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pcmciaWriteReg (pcmciac, 0x3c8, 0x00); /* DAC 257 */
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pcmciaWriteReg (pcmciac, 0x3c9, bg);
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pcmciaWriteReg (pcmciac, 0x3c9, bg >> 8);
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pcmciaWriteReg (pcmciac, 0x3c9, bg >> 16);
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pcmciaWriteIndex (pcmciac, 0x3c4, 0x12, temp);
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}
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}
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void
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pcmciaRecolorCursor (ScreenPtr pScreen, int ndef, xColorItem *pdef)
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{
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SetupCursor (pScreen);
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CursorPtr pCursor = pCurPriv->pCursor;
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xColorItem sourceColor, maskColor;
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if (!pCurPriv->has_cursor || !pCursor)
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return;
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if (!pScreenPriv->enabled)
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return;
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if (pdef)
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{
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while (ndef)
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{
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if (pdef->pixel == pCurPriv->source ||
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pdef->pixel == pCurPriv->mask)
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break;
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ndef--;
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}
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if (!ndef)
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return;
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}
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pcmciaAllocCursorColors (pScreen);
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pcmciaSetCursorColors (pScreen);
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}
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#define InvertBits32(v) { \
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v = ((v & 0x55555555) << 1) | ((v >> 1) & 0x55555555); \
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v = ((v & 0x33333333) << 2) | ((v >> 2) & 0x33333333); \
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v = ((v & 0x0f0f0f0f) << 4) | ((v >> 4) & 0x0f0f0f0f); \
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}
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static void
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pcmciaLoadCursor (ScreenPtr pScreen, int x, int y)
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{
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SetupCursor(pScreen);
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CursorPtr pCursor = pCurPriv->pCursor;
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CursorBitsPtr bits = pCursor->bits;
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int w, h;
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CARD8 *ram;
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CARD32 *msk, *mskLine, *src, *srcLine;
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int i, j;
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int cursor_address;
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int lwsrc;
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unsigned char ramdac_control_;
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CARD32 offset;
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/*
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* Allocate new colors
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*/
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pcmciaAllocCursorColors (pScreen);
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pCurPriv->pCursor = pCursor;
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pCurPriv->xhot = pCursor->bits->xhot;
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pCurPriv->yhot = pCursor->bits->yhot;
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/*
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* Stick new image into cursor memory
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*/
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if (pcmciac->HP) {
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ram = (CARD8 *) pcmcias->cursor_base;
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} else {
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/* The last bank */
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ram = (CARD8 *) pcmciac->fb;
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pcmciaWriteIndex (pcmciac, 0x3ce, 0x09, 0x7f);
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pcmciaWriteIndex (pcmciac, 0x3ce, 0x0A, 0x7f);
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}
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mskLine = (CARD32 *) bits->mask;
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srcLine = (CARD32 *) bits->source;
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h = bits->height;
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if (h > PCMCIA_CURSOR_HEIGHT)
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h = PCMCIA_CURSOR_HEIGHT;
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lwsrc = BitmapBytePad(bits->width) / 4;
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for (i = 0; i < PCMCIA_CURSOR_HEIGHT; i++) {
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msk = mskLine;
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src = srcLine;
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mskLine += lwsrc;
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srcLine += lwsrc;
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for (j = 0; j < PCMCIA_CURSOR_WIDTH / 32; j++) {
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CARD32 m, s;
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if (i < h && j < lwsrc)
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{
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m = *msk++;
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s = *src++;
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InvertBits32(m);
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InvertBits32(s);
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}
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else
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{
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m = 0;
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s = 0;
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}
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/* Do 8bit access */
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*ram++ = (m & 0xff);
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*ram++ = (m & 0xff00) >> 8;
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*ram++ = (m & 0xff0000) >> 16;
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*ram++ = (m & 0xff000000) >> 24;
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*ram++ = (s & 0xff);
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*ram++ = (s & 0xff00) >> 8;
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*ram++ = (s & 0xff0000) >> 16;
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*ram++ = (s & 0xff000000) >> 24;
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}
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}
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/* Set address for cursor bits */
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if (pcmciac->HP) {
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offset = pcmcias->cursor_base - (CARD8 *) pcmcias->screen;
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offset >>= 10;
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x44, (CARD8) (offset & 0xff));
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x45, (CARD8) (offset >> 8));
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} else {
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pcmciaWriteIndex (pcmciac, 0x3c4, 0x13, 15); /* ?? */
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}
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/* Set new color */
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pcmciaSetCursorColors (pScreen);
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/* Enable the cursor */
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if (pcmciac->HP)
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x50, 0xc1);
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else
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pcmciaWriteIndex (pcmciac, 0x3c4, 0x12, 0x05);
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/* Move to new position */
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pcmciaMoveCursor (pScreen, x, y);
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}
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static void
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pcmciaUnloadCursor (ScreenPtr pScreen)
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{
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SetupCursor (pScreen);
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/* Disable cursor */
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if (pcmciac->HP)
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pcmciaWriteIndex (pcmciac, 0x3d4, 0x50, 0);
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else
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pcmciaWriteIndex (pcmciac, 0x3c4, 0x12, 0);
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}
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static Bool
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pcmciaRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
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{
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SetupCursor(pScreen);
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if (!pScreenPriv->enabled)
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return TRUE;
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/* miRecolorCursor does this */
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if (pCurPriv->pCursor == pCursor)
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{
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if (pCursor)
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{
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int x, y;
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miPointerPosition (&x, &y);
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pcmciaLoadCursor (pScreen, x, y);
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}
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}
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return TRUE;
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}
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static Bool
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pcmciaUnrealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
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{
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return TRUE;
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}
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static void
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pcmciaSetCursor (ScreenPtr pScreen, CursorPtr pCursor, int x, int y)
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{
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SetupCursor(pScreen);
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pCurPriv->pCursor = pCursor;
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if (!pScreenPriv->enabled)
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return;
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if (pCursor)
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pcmciaLoadCursor (pScreen, x, y);
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else
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pcmciaUnloadCursor (pScreen);
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}
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miPointerSpriteFuncRec pcmciaPointerSpriteFuncs = {
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pcmciaRealizeCursor,
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pcmciaUnrealizeCursor,
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pcmciaSetCursor,
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pcmciaMoveCursor,
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};
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static void
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pcmciaQueryBestSize (int class,
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unsigned short *pwidth, unsigned short *pheight,
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ScreenPtr pScreen)
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{
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SetupCursor (pScreen);
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switch (class)
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{
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case CursorShape:
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if (*pwidth > pCurPriv->width)
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*pwidth = pCurPriv->width;
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if (*pheight > pCurPriv->height)
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*pheight = pCurPriv->height;
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if (*pwidth > pScreen->width)
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*pwidth = pScreen->width;
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if (*pheight > pScreen->height)
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*pheight = pScreen->height;
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break;
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default:
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fbQueryBestSize (class, pwidth, pheight, pScreen);
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break;
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}
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}
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Bool
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pcmciaCursorInit (ScreenPtr pScreen)
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{
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SetupCursor (pScreen);
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if (!pcmcias->cursor_base)
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{
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pCurPriv->has_cursor = FALSE;
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return FALSE;
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}
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pCurPriv->width = PCMCIA_CURSOR_WIDTH;
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pCurPriv->height= PCMCIA_CURSOR_HEIGHT;
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pScreen->QueryBestSize = pcmciaQueryBestSize;
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miPointerInitialize (pScreen,
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&pcmciaPointerSpriteFuncs,
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&kdPointerScreenFuncs,
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FALSE);
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pCurPriv->has_cursor = TRUE;
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pCurPriv->pCursor = NULL;
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return TRUE;
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}
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void
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pcmciaCursorEnable (ScreenPtr pScreen)
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{
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SetupCursor (pScreen);
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if (pCurPriv->has_cursor)
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{
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if (pCurPriv->pCursor)
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{
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int x, y;
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miPointerPosition (&x, &y);
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pcmciaLoadCursor (pScreen, x, y);
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}
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else
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pcmciaUnloadCursor (pScreen);
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}
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}
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void
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pcmciaCursorDisable (ScreenPtr pScreen)
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{
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SetupCursor (pScreen);
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if (!pScreenPriv->enabled)
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return;
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if (pCurPriv->has_cursor)
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{
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if (pCurPriv->pCursor)
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{
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pcmciaUnloadCursor (pScreen);
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}
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}
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}
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void
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pcmciaCursorFini (ScreenPtr pScreen)
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{
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SetupCursor (pScreen);
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pCurPriv->pCursor = NULL;
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}
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