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https://github.com/X11Libre/xf86-video-sunffb.git
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971c41ec00
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Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/driver/xf86-video-sunffb/-/merge_requests/10>
143 lines
4.0 KiB
C
143 lines
4.0 KiB
C
/*
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* Hardware cursor support for Creator, Creator 3D and Elite 3D
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*
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* Copyright 2000 by Jakub Jelinek <jakub@redhat.com>.
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of Jakub
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* Jelinek not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Jakub Jelinek makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* JAKUB JELINEK DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL JAKUB JELINEK BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "ffb.h"
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/* This file just performs cursor software state management. The
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* actual programming is done by calls into the DAC layer.
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*/
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static void FFBLoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src);
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static void FFBShowCursor(ScrnInfoPtr pScrn);
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static void FFBHideCursor(ScrnInfoPtr pScrn);
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static void FFBSetCursorPosition(ScrnInfoPtr pScrn, int x, int y);
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static void FFBSetCursorColors(ScrnInfoPtr pScrn, int bg, int fg);
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static void
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FFBLoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src)
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{
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FFBPtr pFfb = GET_FFB_FROM_SCRN(pScrn);
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unsigned int *data = (unsigned int *)src;
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int x, y;
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pFfb->CursorData = src;
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x = pFfb->CursorShiftX;
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y = pFfb->CursorShiftY;
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if (x >= 64 || y >= 64)
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y = 64;
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FFBDacCursorLoadBitmap(pFfb, x, y, data);
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}
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static void
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FFBShowCursor(ScrnInfoPtr pScrn)
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{
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FFBPtr pFfb = GET_FFB_FROM_SCRN(pScrn);
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FFBDacCursorEnableDisable(pFfb, 1);
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}
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static void
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FFBHideCursor(ScrnInfoPtr pScrn)
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{
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FFBPtr pFfb = GET_FFB_FROM_SCRN(pScrn);
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FFBDacCursorEnableDisable(pFfb, 0);
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pFfb->CursorData = NULL;
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}
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static void
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FFBSetCursorPosition(ScrnInfoPtr pScrn, int x, int y)
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{
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FFBPtr pFfb = GET_FFB_FROM_SCRN(pScrn);
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int CursorShiftX = 0, CursorShiftY = 0;
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if (x < 0) {
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CursorShiftX = -x;
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x = 0;
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if (CursorShiftX > 64)
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CursorShiftX = 64;
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}
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if (y < 0) {
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CursorShiftY = -y;
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y = 0;
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if (CursorShiftY > 64)
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CursorShiftY = 64;
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}
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if ((CursorShiftX != pFfb->CursorShiftX ||
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CursorShiftY != pFfb->CursorShiftY) &&
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pFfb->CursorData != NULL) {
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pFfb->CursorShiftX = CursorShiftX;
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pFfb->CursorShiftY = CursorShiftY;
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FFBLoadCursorImage(pScrn, pFfb->CursorData);
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}
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FFBDacLoadCursorPos(pFfb, x, y);
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}
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static void
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FFBSetCursorColors(ScrnInfoPtr pScrn, int bg, int fg)
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{
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FFBPtr pFfb = GET_FFB_FROM_SCRN(pScrn);
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FFBDacLoadCursorColor(pFfb, fg, bg);
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}
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Bool
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FFBHWCursorInit(ScreenPtr pScreen)
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{
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ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
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FFBPtr pFfb;
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xf86CursorInfoPtr infoPtr;
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pFfb = GET_FFB_FROM_SCRN(pScrn);
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pFfb->CursorShiftX = 0;
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pFfb->CursorShiftY = 0;
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pFfb->CursorData = NULL;
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infoPtr = xf86CreateCursorInfoRec();
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if(!infoPtr) return FALSE;
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pFfb->CursorInfoRec = infoPtr;
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infoPtr->MaxWidth = 64;
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infoPtr->MaxHeight = 64;
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infoPtr->Flags = HARDWARE_CURSOR_AND_SOURCE_WITH_MASK |
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HARDWARE_CURSOR_SOURCE_MASK_NOT_INTERLEAVED;
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infoPtr->SetCursorColors = FFBSetCursorColors;
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infoPtr->SetCursorPosition = FFBSetCursorPosition;
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infoPtr->LoadCursorImage = FFBLoadCursorImage;
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infoPtr->HideCursor = FFBHideCursor;
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infoPtr->ShowCursor = FFBShowCursor;
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infoPtr->UseHWCursor = NULL;
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return xf86InitCursor(pScreen, infoPtr);
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}
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