forked from old/legacy-imlib2
711 lines
16 KiB
C
711 lines
16 KiB
C
#include <X11/Xlib.h>
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#include <X11/extensions/XShm.h>
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#include <X11/Xutil.h>
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#include <X11/extensions/shape.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include "common.h"
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#include "grab.h"
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static char _x_err = 0;
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static void
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Tmp_HandleXError(Display * d, XErrorEvent * ev)
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{
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d = NULL;
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ev = NULL;
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_x_err = 1;
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}
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char
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__imlib_GrabDrawableToRGBA(DATA32 *data, int ox, int oy, int ow, int oh,
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Display *d, Drawable p, Pixmap m, Visual *v,
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Colormap cm, int depth, int x, int y,
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int w, int h, char domask, char grab)
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{
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XErrorHandler prev_erh = NULL;
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XWindowAttributes xatt, ratt;
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char is_pixmap = 0, created_mask = 0, is_shm = 0, is_mshm = 0;
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int i, pixel, mpixel;
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int src_x, src_y, src_w, src_h, origx, origy, origw, origh;
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int width, height, clipx, clipy, inx, iny;
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XShmSegmentInfo shminfo, mshminfo;
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XImage *xim = NULL, *mxim = NULL;
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static char x_does_shm = -1;
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char bgr = 0;
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DATA32 *ptr;
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DATA8 rtab[256], gtab[256], btab[256];
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XColor cols[256];
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/* FIXME: oh isnt used - i wonder if there's a bug looming... */
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oh = 0;
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origx = x;
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origy = y;
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origw = w;
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origh = h;
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if (grab)
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XGrabServer(d);
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prev_erh = XSetErrorHandler((XErrorHandler) Tmp_HandleXError);
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_x_err = 0;
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/* lets see if its a pixmap or not */
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XGetWindowAttributes(d, p, &xatt);
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XSync(d, False);
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if (_x_err)
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is_pixmap = 1;
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/* reset our error handler */
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XSetErrorHandler((XErrorHandler) prev_erh);
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if (is_pixmap)
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{
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Window dw;
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XGetGeometry(d, p, &dw, &src_x, &src_y,
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(unsigned int *)&src_w, (unsigned int *)&src_h,
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(unsigned int *)&src_x, (unsigned int *)&xatt.depth);
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src_x = 0;
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src_y = 0;
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}
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else
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{
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Window dw;
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XGetWindowAttributes(d, xatt.root, &ratt);
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XTranslateCoordinates(d, p, xatt.root, 0, 0, &src_x, &src_y, &dw);
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src_w = xatt.width;
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src_h = xatt.height;
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if ((xatt.map_state != IsViewable) &&
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(xatt.backing_store == NotUseful))
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{
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if (grab)
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XUngrabServer(d);
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return 0;
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}
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}
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/* clip to the drawable tree and screen */
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clipx = 0;
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clipy = 0;
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width = src_w - x;
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height = src_h - y;
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if (width > w)
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width = w;
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if (height > h)
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height = h;
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if (!is_pixmap)
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{
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if ((src_x + x + width) > ratt.width)
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width = ratt.width - (src_x + x);
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if ((src_y + y + height) > ratt.height)
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height = ratt.height - (src_y + y);
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}
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if (x < 0)
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{
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clipx = -x;
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width += x;
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x = 0;
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}
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if (y < 0)
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{
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clipy = -y;
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height += y;
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y = 0;
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}
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if (!is_pixmap)
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{
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if ((src_x + x) < 0)
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{
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clipx -= (src_x + x);
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width += (src_x + x);
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x = -src_x;
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}
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if ((src_y + y) < 0)
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{
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clipy -= (src_y + y);
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height += (src_y + y);
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y = -src_y;
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}
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}
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if ((width <= 0) || (height <= 0))
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{
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if (grab)
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XUngrabServer(d);
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return 0;
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}
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w = width;
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h = height;
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if ((!is_pixmap) && (domask) && (!m))
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{
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int ord, rect_no = 0;
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XRectangle *r = NULL;
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r = XShapeGetRectangles(d, p, ShapeBounding, &rect_no, &ord);
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if (r)
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{
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if (!((rect_no == 1) &&
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(r[0].x == 0) && (r[0].y == 0) &&
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(r[0].width == xatt.width) && (r[0].height == xatt.height)))
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{
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XGCValues gcv;
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GC gc;
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created_mask = 1;
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m = XCreatePixmap(d, p, w, h, 1);
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gcv.foreground = 0;
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gc = XCreateGC(d, m, GCForeground, &gcv);
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XFillRectangle(d, m, gc, 0, 0, w, h);
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XSetForeground(d, gc, 1);
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for (i = 0; i < rect_no; i++)
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XFillRectangle(d, m, gc,
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r[i].x - x, r[i].y - y,
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r[i].width, r[i].height);
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XFreeGC(d, gc);
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}
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XFree(r);
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}
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}
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/* Create an Ximage (shared or not) */
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if (x_does_shm < 0)
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{
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if (XShmQueryExtension(d))
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x_does_shm = 1;
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else
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x_does_shm = 0;
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}
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prev_erh = XSetErrorHandler((XErrorHandler) Tmp_HandleXError);
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_x_err = 0;
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if (x_does_shm)
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{
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xim = XShmCreateImage(d, v, xatt.depth, ZPixmap, NULL,
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&shminfo, w, h);
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if (!xim)
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xim = XGetImage(d, p, x, y, w, h,
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0xffffffff, ZPixmap);
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else
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{
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XSync(d, False);
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if (_x_err)
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{
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XDestroyImage(xim);
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xim = XGetImage(d, p, x, y, w, h,
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0xffffffff, ZPixmap);
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_x_err = 0;
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}
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else
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{
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shminfo.shmid = shmget(IPC_PRIVATE, xim->bytes_per_line *
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xim->height, IPC_CREAT | 0666);
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if (shminfo.shmid < 0)
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{
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XDestroyImage(xim);
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xim = XGetImage(d, p, x, y, w, h,
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0xffffffff, ZPixmap);
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}
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else
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{
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shminfo.shmaddr = xim->data = shmat(shminfo.shmid, 0, 0);
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if (xim->data != (char *)-1)
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{
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shminfo.readOnly = False;
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XShmAttach(d, &shminfo);
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is_shm = 1;
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}
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else
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{
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shmctl(shminfo.shmid, IPC_RMID, 0);
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XDestroyImage(xim);
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xim = XGetImage(d, p, x, y, w, h,
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0xffffffff, ZPixmap);
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}
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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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xim = XGetImage(d, p, x, y, w, h, 0xffffffff, ZPixmap);
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if (is_shm)
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{
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XShmGetImage(d, p, xim, x, y, 0xffffffff);
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XSync(d, False);
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if (_x_err)
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{
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shmdt(shminfo.shmaddr);
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shmctl(shminfo.shmid, IPC_RMID, 0);
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XDestroyImage(xim);
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xim = XGetImage(d, p, x, y, w, h,
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0xffffffff, ZPixmap);
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is_shm = 0;
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}
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}
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XSetErrorHandler((XErrorHandler) prev_erh);
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if ((m) && (domask))
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{
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prev_erh = XSetErrorHandler((XErrorHandler) Tmp_HandleXError);
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_x_err = 0;
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if (x_does_shm)
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{
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mxim = XShmCreateImage(d, v, 1, ZPixmap, NULL,
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&mshminfo, w, h);
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if (!mxim)
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mxim = XGetImage(d, p, 0, 0, w, h,
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0xffffffff, ZPixmap);
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else
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{
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XSync(d, False);
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if (_x_err)
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{
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XDestroyImage(mxim);
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xim = XGetImage(d, p, 0, 0, w, h,
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0xffffffff, ZPixmap);
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_x_err = 0;
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}
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else
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{
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mshminfo.shmid = shmget(IPC_PRIVATE,
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mxim->bytes_per_line *
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mxim->height, IPC_CREAT | 0666);
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if (mshminfo.shmid < 0)
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{
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XDestroyImage(mxim);
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mxim = XGetImage(d, p, 0, 0, w, h,
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0xffffffff, ZPixmap);
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}
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else
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{
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mshminfo.shmaddr = xim->data =
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shmat(mshminfo.shmid, 0, 0);
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if (mxim->data != (char *)-1)
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{
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mshminfo.readOnly = False;
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XShmAttach(d, &mshminfo);
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is_mshm = 1;
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}
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else
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{
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shmctl(mshminfo.shmid, IPC_RMID, 0);
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XDestroyImage(mxim);
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mxim = XGetImage(d, p, x, y, w, h,
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0xffffffff, ZPixmap);
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}
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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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mxim = XGetImage(d, m, 0, 0, w, h, 0xffffffff, ZPixmap);
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if (is_mshm)
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{
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XShmGetImage(d, p, mxim, 0, 0, 0xffffffff);
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XSync(d, False);
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if (_x_err)
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{
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shmdt(mshminfo.shmaddr);
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shmctl(mshminfo.shmid, IPC_RMID, 0);
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XDestroyImage(mxim);
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mxim = XGetImage(d, p, 0, 0, w, h,
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0xffffffff, ZPixmap);
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is_mshm = 0;
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}
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XSetErrorHandler((XErrorHandler) prev_erh);
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}
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}
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if ((is_shm) || (is_mshm))
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{
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XSync(d, False);
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if (grab)
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XUngrabServer(d);
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XSync(d, False);
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}
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else if (grab)
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XUngrabServer(d);
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if ((xatt.depth == 1) && (!cm) && (is_pixmap))
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{
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rtab[0] = 0;
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gtab[0] = 0;
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btab[0] = 0;
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rtab[1] = 255;
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gtab[1] = 255;
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btab[1] = 255;
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}
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else if (xatt.depth <= 8)
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{
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if ((!is_pixmap) && (!cm))
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{
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cm = xatt.colormap;
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if (cm == None)
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cm = ratt.colormap;
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}
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else
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cm = ratt.colormap;
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for (i = 0; i < (1 << xatt.depth); i++)
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{
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cols[i].pixel = i;
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cols[i].flags = DoRed | DoGreen | DoBlue;
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}
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XQueryColors(d, cm, cols, 1 << xatt.depth);
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for (i = 0; i < (1 << xatt.depth); i++)
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{
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rtab[i] = cols[i].red >> 8;
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gtab[i] = cols[i].green >> 8;
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btab[i] = cols[i].blue >> 8;
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}
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}
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if (v->blue_mask > v->red_mask)
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bgr = 1;
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if (data)
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{
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DATA32 *src;
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if (origx < 0)
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inx = -origx;
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else
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inx = ox;
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if (origy < 0)
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iny = -origy;
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else
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iny = oy;
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/* go thru the XImage and convert */
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if (xim->bits_per_pixel == 32)
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depth = 32;
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switch (depth)
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{
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case 0:
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case 1:
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case 2:
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case 3:
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case 4:
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case 5:
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case 6:
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case 7:
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case 8:
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if (mxim)
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{
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for (y = 0; y < h; y++)
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{
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ptr = data + ((y + iny) * ow) + inx;
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for (x = 0; x < w; x++)
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{
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pixel = XGetPixel(xim, x, y);
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mpixel = XGetPixel(mxim, x, y);
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*ptr++ = (0xff000000 >> (mpixel << 31)) |
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(btab[pixel & 0xff]) |
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(gtab[pixel & 0xff] << 8) |
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(rtab[pixel & 0xff] << 16);
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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 (y = 0; y < h; y++)
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{
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ptr = data + ((y + iny) * ow) + inx;
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for (x = 0; x < w; x++)
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{
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pixel = XGetPixel(xim, x, y);
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*ptr++ = 0xff000000 |
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(btab[pixel & 0xff]) |
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(gtab[pixel & 0xff] << 8) |
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(rtab[pixel & 0xff] << 16);
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}
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}
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}
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break;
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case 16:
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#undef MP
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#undef RMSK
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#undef GMSK
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#undef BMSK
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#undef R1SH
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#undef G1SH
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#undef B1SH
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#undef R2SH
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#undef G2SH
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#undef B2SH
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#undef P1
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#undef P2
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#define MP(x, y) (0xff000000 >> (XGetPixel(mxim, (x), (y)) << 31))
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#define RMSK 0xf80000
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#define GMSK 0x00fc00
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#define BMSK 0x0000f8
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#define R1SH(p) ((p) << 8)
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#define G1SH(p) ((p) << 5)
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#define B1SH(p) ((p) << 3)
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#define R2SH(p) ((p) >> 8)
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#define G2SH(p) ((p) >> 11)
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#define B2SH(p) ((p) >> 13)
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#define P1(p) (R1SH(p) & RMSK) | (G1SH(p) & GMSK) | (B1SH(p) & BMSK)
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#define P2(p) (R2SH(p) & RMSK) | (G2SH(p) & GMSK) | (B2SH(p) & BMSK)
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if (mxim)
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{
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for (y = 0; y < h; y++)
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{
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src = (DATA32 *)(xim->data + (xim->bytes_per_line * y));
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ptr = data + ((y + iny) * ow) + inx;
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for (x = 0; x < (w - 1); x += 2)
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{
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*ptr++ = MP(x, y) | P1(*src);
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*ptr++ = MP(x + 1, y) | P2(*src);
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src++;
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}
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if (x == (w - 1))
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{
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pixel = XGetPixel(xim, x, y);
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*ptr++ = MP(x, y) | P1(pixel);
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}
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}
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}
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#undef MP
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#define MP(x, y) (0xff000000)
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else
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{
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for (y = 0; y < h; y++)
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{
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src = (DATA32 *)(xim->data + (xim->bytes_per_line * y));
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ptr = data + ((y + iny) * ow) + inx;
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for (x = 0; x < (w - 1); x += 2)
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{
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*ptr++ = MP(x, y) | P1(*src);
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*ptr++ = MP(x + 1, y) | P2(*src);
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src++;
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}
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if (x == (w - 1))
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{
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pixel = XGetPixel(xim, x, y);
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*ptr++ = MP(x, y) | P1(pixel);
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}
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}
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}
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break;
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case 15:
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#undef MP
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#undef RMSK
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#undef GMSK
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#undef BMSK
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#undef R1SH
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#undef G1SH
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#undef B1SH
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#undef R2SH
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#undef G2SH
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#undef B2SH
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#undef P1
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#undef P2
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#define MP(x, y) (0xff000000 >> (XGetPixel(mxim, (x), (y)) << 31))
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#define RMSK 0xf80000
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#define GMSK 0x00f800
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#define BMSK 0x0000f8
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#define R1SH(p) ((p) << 9)
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#define G1SH(p) ((p) << 6)
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#define B1SH(p) ((p) << 3)
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#define R2SH(p) ((p) >> 7)
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#define G2SH(p) ((p) >> 10)
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#define B2SH(p) ((p) >> 13)
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#define P1(p) (R1SH(p) & RMSK) | (G1SH(p) & GMSK) | (B1SH(p) & BMSK)
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#define P2(p) (R2SH(p) & RMSK) | (G2SH(p) & GMSK) | (B2SH(p) & BMSK)
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if (mxim)
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{
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for (y = 0; y < h; y++)
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{
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src = (DATA32 *)(xim->data + (xim->bytes_per_line * y));
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ptr = data + ((y + iny) * ow) + inx;
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for (x = 0; x < (w - 1); x += 2)
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{
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*ptr++ = MP(x, y) | P1(*src);
|
|
*ptr++ = MP(x + 1, y) | P2(*src);
|
|
src++;
|
|
}
|
|
if (x == (w - 1))
|
|
{
|
|
pixel = XGetPixel(xim, x, y);
|
|
*ptr++ = MP(x, y) | P1(pixel);
|
|
}
|
|
}
|
|
}
|
|
#undef MP
|
|
#define MP(x, y) (0xff000000)
|
|
else
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
src = (DATA32 *)(xim->data + (xim->bytes_per_line * y));
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < (w - 1); x += 2)
|
|
{
|
|
*ptr++ = MP(x, y) | P1(*src);
|
|
*ptr++ = MP(x + 1, y) | P2(*src);
|
|
src++;
|
|
}
|
|
if (x == (w - 1))
|
|
{
|
|
pixel = XGetPixel(xim, x, y);
|
|
*ptr++ = MP(x, y) | P1(pixel);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 24:
|
|
if (bgr)
|
|
{
|
|
if (mxim)
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
pixel = XGetPixel(xim, x, y);
|
|
pixel =
|
|
((pixel << 16) & 0xff0000) |
|
|
((pixel) & 0x00ff00) |
|
|
((pixel >> 16) & 0x0000ff);
|
|
mpixel = XGetPixel(mxim, x, y);
|
|
*ptr++ = (0xff000000 >> (mpixel << 31)) |
|
|
(pixel & 0x00ffffff);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
pixel = XGetPixel(xim, x, y);
|
|
*ptr++ = 0xff000000 |
|
|
((pixel << 16) & 0xff0000) |
|
|
((pixel) & 0x00ff00) |
|
|
((pixel >> 16) & 0x0000ff);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (mxim)
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
pixel = XGetPixel(xim, x, y);
|
|
mpixel = XGetPixel(mxim, x, y);
|
|
*ptr++ = (0xff000000 >> (mpixel << 31)) |
|
|
(pixel & 0x00ffffff);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
pixel = XGetPixel(xim, x, y);
|
|
*ptr++ = 0xff000000 |
|
|
(pixel & 0x00ffffff);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 32:
|
|
if (bgr)
|
|
{
|
|
if (mxim)
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
src = (DATA32 *)(xim->data + (xim->bytes_per_line * y));
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
mpixel = XGetPixel(mxim, x, y);
|
|
pixel =
|
|
((*src << 16) & 0xff0000) |
|
|
((*src) & 0x00ff00) |
|
|
((*src >> 16) & 0x0000ff);
|
|
*ptr++ = (0xff000000 >> (mpixel << 31)) |
|
|
((pixel) & 0x00ffffff);
|
|
src++;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
src = (DATA32 *)(xim->data + (xim->bytes_per_line * y));
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
*ptr++ = 0xff000000 |
|
|
((*src << 16) & 0xff0000) |
|
|
((*src) & 0x00ff00) |
|
|
((*src >> 16) & 0x0000ff);
|
|
src++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (mxim)
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
src = (DATA32 *)(xim->data + (xim->bytes_per_line * y));
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
mpixel = XGetPixel(mxim, x, y);
|
|
*ptr++ = (0xff000000 >> (mpixel << 31)) |
|
|
((*src) & 0x00ffffff);
|
|
src++;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (y = 0; y < h; y++)
|
|
{
|
|
src = (DATA32 *)(xim->data + (xim->bytes_per_line * y));
|
|
ptr = data + ((y + iny) * ow) + inx;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
*ptr++ = 0xff000000 |
|
|
((*src) & 0x00ffffff);
|
|
src++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
/* destroy the Ximage */
|
|
if (is_shm)
|
|
{
|
|
XSync(d, False);
|
|
XShmDetach(d, &shminfo);
|
|
shmdt(shminfo.shmaddr);
|
|
shmctl(shminfo.shmid, IPC_RMID, 0);
|
|
}
|
|
if ((is_mshm) && (mxim))
|
|
{
|
|
XShmDetach(d, &mshminfo);
|
|
shmdt(mshminfo.shmaddr);
|
|
shmctl(mshminfo.shmid, IPC_RMID, 0);
|
|
}
|
|
XDestroyImage(xim);
|
|
if (created_mask)
|
|
XFreePixmap(d, m);
|
|
if (mxim)
|
|
XDestroyImage(mxim);
|
|
return 1;
|
|
}
|