543 lines
13 KiB
C
543 lines
13 KiB
C
/*
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* Copyright (C) 2000-2007 Carsten Haitzler, Geoff Harrison and various contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies of the Software, its documentation and marketing & publicity
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* materials, and acknowledgment shall be given in the documentation, materials
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* and software packages that this Software was used.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "E.h"
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#include "piximg.h"
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#include "xwin.h"
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <X11/Xutil.h>
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#include <X11/extensions/XShm.h>
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void
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EFillPixmap(Window win, Pixmap pmap, int x, int y, int w, int h)
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{
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XGCValues gcv;
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GC gc;
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gcv.subwindow_mode = IncludeInferiors;
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gc = EXCreateGC(win, GCSubwindowMode, &gcv);
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XCopyArea(disp, win, pmap, gc, x, y, w, h, x, y);
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EXFreeGC(gc);
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}
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void
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EPastePixmap(Window win, Pixmap pmap, int x, int y, int w, int h)
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{
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XGCValues gcv;
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GC gc;
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gcv.subwindow_mode = IncludeInferiors;
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gc = EXCreateGC(win, GCSubwindowMode, &gcv);
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XCopyArea(disp, pmap, win, gc, x, y, w, h, x, y);
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EXFreeGC(gc);
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}
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PixImg *
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ECreatePixImg(Window win, int w, int h)
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{
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XGCValues gcv;
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PixImg *pi;
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pi = EMALLOC(PixImg, 1);
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if (!pi)
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return NULL;
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pi->shminfo = EMALLOC(XShmSegmentInfo, 1);
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if (pi->shminfo)
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{
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pi->xim = XShmCreateImage(disp, WinGetVisual(VROOT),
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WinGetDepth(VROOT), ZPixmap, NULL,
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pi->shminfo, w, h);
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if (pi->xim)
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{
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pi->shminfo->shmid =
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shmget(IPC_PRIVATE, pi->xim->bytes_per_line * pi->xim->height,
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IPC_CREAT | 0666);
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if (pi->shminfo->shmid >= 0)
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{
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pi->shminfo->shmaddr = pi->xim->data =
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(char *)shmat(pi->shminfo->shmid, 0, 0);
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if (pi->shminfo->shmaddr != (void *)-1)
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{
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pi->shminfo->readOnly = False;
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Dpy.last_error_code = 0;
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XShmAttach(disp, pi->shminfo);
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ESync(0);
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if (Dpy.last_error_code == 0)
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{
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pi->pmap =
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XShmCreatePixmap(disp, win, pi->shminfo->shmaddr,
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pi->shminfo, w, h,
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WinGetDepth(VROOT));
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if (pi->pmap)
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{
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gcv.subwindow_mode = IncludeInferiors;
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pi->gc =
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EXCreateGC(win, GCSubwindowMode, &gcv);
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if (pi->gc)
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return pi;
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EFreePixmap(pi->pmap);
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}
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XShmDetach(disp, pi->shminfo);
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}
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shmdt(pi->shminfo->shmaddr);
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}
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shmctl(pi->shminfo->shmid, IPC_RMID, 0);
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}
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XDestroyImage(pi->xim);
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}
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Efree(pi->shminfo);
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}
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Efree(pi);
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return NULL;
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}
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void
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EDestroyPixImg(PixImg * pi)
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{
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if (!pi)
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return;
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ESync(0);
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XShmDetach(disp, pi->shminfo);
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shmdt(pi->shminfo->shmaddr);
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shmctl(pi->shminfo->shmid, IPC_RMID, 0);
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XDestroyImage(pi->xim);
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Efree(pi->shminfo);
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EFreePixmap(pi->pmap);
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EXFreeGC(pi->gc);
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Efree(pi);
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}
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void
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EBlendRemoveShape(Win win, Pixmap pmap, int x, int y)
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{
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static GC gc = 0;
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Window root = WinGetXwin(VROOT);
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int w, h;
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if (!win)
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{
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if (gc)
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EXFreeGC(gc);
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gc = 0;
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return;
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}
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if (win->num_rect <= 0)
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return;
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w = WinGetW(win);
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h = WinGetH(win);
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if (!gc)
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{
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XGCValues gcv;
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GC gcm;
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Pixmap mask;
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XRectangle *rl;
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int i;
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gcv.subwindow_mode = IncludeInferiors;
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gc = EXCreateGC(root, GCSubwindowMode, &gcv);
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mask = XCreatePixmap(disp, root, w, h, 1);
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gcm = EXCreateGC(mask, 0, NULL);
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XSetForeground(disp, gcm, 1);
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XFillRectangle(disp, mask, gcm, 0, 0, w, h);
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XSetForeground(disp, gcm, 0);
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rl = win->rects;
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for (i = 0; i < win->num_rect; i++)
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XFillRectangle(disp, mask, gcm, rl[i].x, rl[i].y, rl[i].width,
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rl[i].height);
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XSetClipMask(disp, gc, mask);
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EXFreeGC(gcm);
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XFreePixmap(disp, mask);
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}
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XSetClipOrigin(disp, gc, x, y);
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XCopyArea(disp, pmap, root, gc, x, y, w, h, x, y);
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}
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void
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EBlendPixImg(Win win, PixImg * s1, PixImg * s2, PixImg * dst, int x, int y,
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int w, int h)
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{
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static GC gc = 0;
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Window root = WinGetXwin(VROOT);
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int i, j, ox, oy;
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if (!win)
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{
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if (gc)
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EXFreeGC(gc);
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gc = 0;
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return;
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}
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if (!gc)
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{
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XGCValues gcv;
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gcv.subwindow_mode = IncludeInferiors;
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gc = EXCreateGC(root, GCSubwindowMode, &gcv);
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if (win->rects)
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XSetClipRectangles(disp, gc, x, y, win->rects, win->num_rect,
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win->ord);
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}
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else
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XSetClipOrigin(disp, gc, x, y);
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ox = 0;
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oy = 0;
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if ((x >= WinGetW(VROOT)) || (y >= WinGetH(VROOT)))
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return;
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if (x + w > WinGetW(VROOT))
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w -= ((x + w) - WinGetW(VROOT));
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if (x < 0)
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{
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ox = -x;
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w -= ox;
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x = 0;
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}
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if (y + h > WinGetH(VROOT))
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h -= ((y + h) - WinGetH(VROOT));
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if (y < 0)
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{
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oy = -y;
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h -= oy;
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y = 0;
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}
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if ((w <= 0) || (h <= 0))
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return;
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ESync(0);
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switch (dst->xim->bits_per_pixel)
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{
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case 32:
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for (j = 0; j < h; j++)
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{
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unsigned int *ptr1, *ptr2, *ptr3;
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ptr1 =
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(unsigned int *)(s1->xim->data +
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(x * ((s1->xim->bits_per_pixel) >> 3)) +
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((j + y) * s1->xim->bytes_per_line));
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ptr2 =
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(unsigned int *)(s2->xim->data +
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(ox * ((s2->xim->bits_per_pixel) >> 3)) +
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((j + oy) * s2->xim->bytes_per_line));
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ptr3 =
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(unsigned int *)(dst->xim->data +
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(ox * ((dst->xim->bits_per_pixel) >> 3)) +
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((j + oy) * dst->xim->bytes_per_line));
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for (i = 0; i < w; i++)
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{
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unsigned int p1, p2;
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p1 = *ptr1++;
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p2 = *ptr2++;
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*ptr3++ = ((p1 >> 1) & 0x7f7f7f7f) +
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((p2 >> 1) & 0x7f7f7f7f) + (p1 & p2 & 0x01010101);
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}
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}
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break;
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case 24:
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for (j = 0; j < h; j++)
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{
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for (i = 0; i < w; i++)
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{
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unsigned int p1, p2;
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p1 = XGetPixel(s1->xim, (i + x), (j + y));
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p2 = XGetPixel(s2->xim, (i + ox), (j + oy));
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XPutPixel(dst->xim, (i + ox), (j + oy),
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(((p1 >> 1) & 0x7f7f7f7f) +
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((p2 >> 1) & 0x7f7f7f7f) +
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(p1 & p2 & 0x01010101)));
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}
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}
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break;
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case 16:
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if (WinGetDepth(VROOT) != 15)
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{
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for (j = 0; j < h; j++)
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{
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unsigned int *ptr1, *ptr2, *ptr3;
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ptr1 =
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(unsigned int *)(s1->xim->data +
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(x * ((s1->xim->bits_per_pixel) >> 3)) +
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((j + y) * s1->xim->bytes_per_line));
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ptr2 =
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(unsigned int *)(s2->xim->data +
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(ox * ((s2->xim->bits_per_pixel) >> 3)) +
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((j + oy) * s2->xim->bytes_per_line));
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ptr3 =
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(unsigned int *)(dst->xim->data +
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(ox * ((dst->xim->bits_per_pixel) >> 3)) +
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((j + oy) * dst->xim->bytes_per_line));
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if (!(w & 0x1))
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{
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for (i = 0; i < w; i += 2)
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{
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unsigned int p1, p2;
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p1 = *ptr1++;
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p2 = *ptr2++;
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*ptr3++ =
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((p1 >> 1) &
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((0x78 << 8) | (0x7c << 3) | (0x78 >> 3) |
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(0x78 << 24) | (0x7c << 19) | (0x78 << 13)))
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+
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((p2 >> 1) &
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((0x78 << 8) | (0x7c << 3) | (0x78 >> 3) |
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(0x78 << 24) | (0x7c << 19) | (0x78 << 13)))
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+
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(p1 & p2 &
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((0x1 << 11) | (0x1 << 5) | (0x1) |
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(0x1 << 27) | (0x1 << 21) | (0x1 << 16)));
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}
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}
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else
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{
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for (i = 0; i < (w - 1); i += 2)
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{
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unsigned int p1, p2;
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p1 = *ptr1++;
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p2 = *ptr2++;
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*ptr3++ =
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((p1 >> 1) &
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((0x78 << 8) | (0x7c << 3) | (0x78 >> 3) |
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(0x78 << 24) | (0x7c << 19) | (0x78 << 13)))
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+
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((p2 >> 1) &
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((0x78 << 8) | (0x7c << 3) | (0x78 >> 3) |
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(0x78 << 24) | (0x7c << 19) | (0x78 << 13)))
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+
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(p1 & p2 &
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((0x1 << 11) | (0x1 << 5) | (0x1) |
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(0x1 << 27) | (0x1 << 21) | (0x1 << 16)));
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}
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{
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unsigned short *pptr1, *pptr2, *pptr3;
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unsigned short pp1, pp2;
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pptr1 = (unsigned short *)ptr1;
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pptr2 = (unsigned short *)ptr2;
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pptr3 = (unsigned short *)ptr3;
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pp1 = *pptr1;
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pp2 = *pptr2;
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*pptr3 =
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((pp1 >> 1) &
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((0x78 << 8) | (0x7c << 3) | (0x78 >> 3)))
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+
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((pp2 >> 1) &
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((0x78 << 8) | (0x7c << 3) | (0x78 >> 3)))
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+ (pp1 & pp2 & ((0x1 << 11) | (0x1 << 5) | (0x1)));
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}
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}
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}
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}
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else
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{
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for (j = 0; j < h; j++)
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{
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unsigned int *ptr1, *ptr2, *ptr3;
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ptr1 =
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(unsigned int *)(s1->xim->data +
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(x * (s1->xim->bits_per_pixel >> 3)) +
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((j + y) * s1->xim->bytes_per_line));
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ptr2 =
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(unsigned int *)(s2->xim->data +
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(ox * ((s2->xim->bits_per_pixel) >> 3)) +
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((j + oy) * s2->xim->bytes_per_line));
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ptr3 =
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(unsigned int *)(dst->xim->data +
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(ox * ((dst->xim->bits_per_pixel) >> 3)) +
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((j + oy) * dst->xim->bytes_per_line));
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if (!(w & 0x1))
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{
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for (i = 0; i < w; i += 2)
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{
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unsigned int p1, p2;
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p1 = *ptr1++;
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p2 = *ptr2++;
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*ptr3++ =
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((p1 >> 1) &
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((0x78 << 7) | (0x78 << 2) | (0x78 >> 3) |
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(0x78 << 23) | (0x78 << 18) | (0x78 << 13)))
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+
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((p2 >> 1) &
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((0x78 << 7) | (0x78 << 2) | (0x78 >> 3) |
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(0x78 << 23) | (0x78 << 18) | (0x78 << 13)))
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+
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(p1 & p2 &
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((0x1 << 10) | (0x1 << 5) | (0x1) |
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(0x1 << 26) | (0x1 << 20) | (0x1 << 16)));
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}
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}
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else
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{
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for (i = 0; i < (w - 1); i += 2)
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{
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unsigned int p1, p2;
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p1 = *ptr1++;
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p2 = *ptr2++;
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*ptr3++ =
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((p1 >> 1) &
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((0x78 << 7) | (0x78 << 2) | (0x78 >> 3) |
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(0x78 << 23) | (0x78 << 18) | (0x78 << 13)))
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+
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((p2 >> 1) &
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((0x78 << 7) | (0x78 << 2) | (0x78 >> 3) |
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(0x78 << 23) | (0x78 << 18) | (0x78 << 13)))
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+
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(p1 & p2 &
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((0x1 << 10) | (0x1 << 5) | (0x1) |
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(0x1 << 26) | (0x1 << 20) | (0x1 << 16)));
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}
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{
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unsigned short *pptr1, *pptr2, *pptr3;
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unsigned short pp1, pp2;
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pptr1 = (unsigned short *)ptr1;
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pptr2 = (unsigned short *)ptr2;
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pptr3 = (unsigned short *)ptr3;
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pp1 = *pptr1;
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pp2 = *pptr2;
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*pptr3++ =
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((pp1 >> 1) &
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((0x78 << 7) | (0x78 << 2) | (0x78 >> 3)))
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+
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((pp2 >> 1) &
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((0x78 << 7) | (0x78 << 2) | (0x78 >> 3)))
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+ (pp1 & pp2 & ((0x1 << 10) | (0x1 << 5) | (0x1)));
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}
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}
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}
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}
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break;
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default:
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for (j = 0; j < h; j++)
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{
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unsigned char *ptr1, *ptr2, *ptr3;
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ptr1 =
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(unsigned char *)(s1->xim->data +
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((x) *
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((s1->xim->bits_per_pixel) >> 3)) +
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((j + y) * s1->xim->bytes_per_line));
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ptr2 =
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(unsigned char *)(s2->xim->data +
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((ox) *
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((s2->xim->bits_per_pixel) >> 3)) +
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((j + oy) * s2->xim->bytes_per_line));
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ptr3 =
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(unsigned char *)(dst->xim->data +
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((ox) *
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((dst->xim->bits_per_pixel) >> 3)) +
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((j + oy) * dst->xim->bytes_per_line));
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if (!(w & 0x1))
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{
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if (j & 0x1)
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{
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ptr2++;
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for (i = 0; i < w; i += 2)
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{
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unsigned char p1;
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p1 = *ptr1;
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ptr1 += 2;
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*ptr3++ = p1;
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p1 = *ptr2;
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ptr2 += 2;
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*ptr3++ = p1;
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}
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}
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else
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{
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ptr1++;
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for (i = 0; i < w; i += 2)
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{
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unsigned char p1;
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p1 = *ptr2;
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ptr2 += 2;
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*ptr3++ = p1;
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p1 = *ptr1;
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ptr1 += 2;
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*ptr3++ = p1;
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}
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}
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}
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else
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{
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if (j & 0x1)
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{
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ptr2++;
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for (i = 0; i < (w - 1); i += 2)
|
|
{
|
|
unsigned char p1;
|
|
|
|
p1 = *ptr1;
|
|
ptr1 += 2;
|
|
*ptr3++ = p1;
|
|
p1 = *ptr2;
|
|
ptr2 += 2;
|
|
*ptr3++ = p1;
|
|
}
|
|
*ptr3 = *ptr1;
|
|
}
|
|
else
|
|
{
|
|
ptr1++;
|
|
for (i = 0; i < (w - 1); i += 2)
|
|
{
|
|
unsigned char p1;
|
|
|
|
p1 = *ptr2;
|
|
ptr2 += 2;
|
|
*ptr3++ = p1;
|
|
p1 = *ptr1;
|
|
ptr1 += 2;
|
|
*ptr3++ = p1;
|
|
}
|
|
*ptr3 = *ptr2;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
/* workaround since XCopyArea doesnt always work with shared pixmaps */
|
|
XShmPutImage(disp, root, gc, dst->xim, ox, oy, x, y, w, h, False);
|
|
/* XCopyArea(disp, dst->pmap, root, gc, ox, oy, w, h, x, y); */
|
|
/* I dont believe it - you cannot do this to a shared pixmaps to the screen */
|
|
/* XCopyArea(disp, dst->pmap, root, dst->gc, x, y, w, h, x, y); */
|
|
}
|