xp_pw.c

speech signal process tools

	if (PR_IS_SERVER_IMAGE((Pixrect *) src)) {
	    /*
	     * Since src is a server image, avoid the overhead of NoExpose
	     * events by doing stippling/tiling.
	     */
	    changes.ts_x_origin = x;
	    changes.ts_y_origin = y;
	    changes_mask = GCTileStipXOrigin | GCTileStipYOrigin;
	    
	    /* clip to source dimensions */
	    width = (width > ((Pixrect *) src)->pr_size.x) ?
		((Pixrect *) src)->pr_size.x : width;
	    height = (height > ((Pixrect *) src)->pr_size.y) ?
		((Pixrect *) src)->pr_size.y : height;

	    if (xv_depth(dest_info) == xv_depth(src_info)) {
		if (xv_depth(dest_info) == 1) {
		    changes.stipple = xv_xid(src_info);
		    changes.fill_style = FillOpaqueStippled;
		    changes_mask |= GCFillStyle | GCStipple;
		} else {
		    changes.tile = xv_xid(src_info);
		    changes.fill_style = FillTiled;
		    changes_mask |=  GCTile | GCFillStyle;
		}
	    } else if (xv_depth(dest_info) > xv_depth(src_info)) {
		changes.stipple = xv_xid(src_info);
		changes.fill_style = FillOpaqueStippled;
		changes_mask |= GCStipple | GCFillStyle;
	    } else {
		xv_error(NULL,
			 ERROR_STRING,
			     XV_MSG("xv_rop: can't handle drawables of different depth"),
			 0);
		return (XV_ERROR);
	    }		
	    if (changes_mask) 
	      XChangeGC(display, gc, changes_mask, &changes);
	    XFillRectangle(display, d, gc, x, y, width, height);
	} else {
	    /* src is a window */
	    if (xv_depth(dest_info) == xv_depth(src_info)) {
		XCopyArea(display, src_d, d, gc, xr, yr, width, height, x, y);
	    } else {
		xv_error(NULL,
			 ERROR_STRING,
			     XV_MSG("xv_rop: Windows of different depth, can't rop"),
			 0);
		return (XV_ERROR);
	    }
	}
    } else {
	if (Xp_xv_rop_mpr_internal(display, d, gc, x, y, width, height, src, 
		xr, yr, dest_info, TRUE) == XV_ERROR)
	    return(XV_ERROR);
    }

    return(XV_OK);
}	


Xv_private int
Xp_xv_rop_mpr_internal(display, d, gc, x, y, width, height, src, xr, yr, 
	dest_info, mpr_bits)
    Display        	*display;
    Drawable        	d;
    GC              	gc;
    int             	x, y, width, height;
    Xv_opaque       	src;
    int             	xr, yr;
    Xv_Drawable_info 	*dest_info;
    short		mpr_bits;
{
    int             		 src_depth;
    XImage         		*ximage;
    Cms_info			*cms = CMS_PRIVATE(xv_cms(dest_info));
    static unsigned char	*data = (unsigned char *)NULL;
    static unsigned int		 last_size = 0;

    src_depth = ((Pixrect *) src)->pr_depth;
    /* 
     * In Sunview, this case is handled by setting all non-zero color values 
     * to 1's. This is currently a NO-OP in XView. This case must be 
     * handled by creating a separate array of data bits of setting non-zero 
     * pixel values to 1's.
     */
    if ((xv_depth(dest_info) == 1) && (src_depth > 1)) {
	return(XV_ERROR);
    }

    if (src_depth == 1) {
	if (!(ximage = xv_image_bitmap(dest_info))) {
	    Screen_visual     *visual;

	    visual = (Screen_visual *)xv_get(xv_screen(dest_info), SCREEN_DEFAULT_VISUAL);
	    xv_image_bitmap(dest_info) = ximage = 
		(XImage *) XCreateImage(display, visual->vinfo->visual,
				1, XYBitmap, 0,
				(char *) mpr_d(((Pixrect *) src))->md_image, 
				0, 0, MPR_LINEBITPAD,
				mpr_d(((Pixrect *) src))->md_linebytes);
	    if (!ximage) {
		return (XV_ERROR);
	    }
	}
    } else if ((src_depth == 8) && (xv_depth(dest_info) == 8)) {
        if (!(ximage = xv_image_pixmap(dest_info))) {
	    Screen_visual *visual;
	    
	    visual = (Screen_visual *)xv_get(xv_screen(dest_info), SCREEN_DEFAULT_VISUAL);
	    xv_image_pixmap(dest_info) = ximage = 
		(XImage *) XCreateImage(display, visual->vinfo->visual,
				8, ZPixmap, 0,
				(char *) mpr_d(((Pixrect *) src))->md_image,
				0, 0, MPR_LINEBITPAD,
				mpr_d(((Pixrect *) src))->md_linebytes);
	    if (!ximage) {
		return (XV_ERROR);
	    }
	}
    } else {
	return (XV_ERROR);
    }
					
    ximage->bitmap_unit = MPR_LINEBITPAD;
    ximage->bitmap_pad = MPR_LINEBITPAD;
    ximage->height = ((Pixrect *) src)->pr_height;
    ximage->width = ((Pixrect *) src)->pr_width;
    ximage->bytes_per_line = mpr_d(((Pixrect *) src))->md_linebytes;
    ximage->data = (char *) mpr_d(((Pixrect *) src))->md_image;

    /* 
     * The bitmap data being passed in might be in either of 2 formats:
     *    1. memory pixrect format.
     *    2. Xlib bitmap format.
     */
    if (mpr_bits == TRUE) {
    /* bitmap data is in memory pixrect format */
#ifdef i386
        ximage->byte_order = LSBFirst;
        /*
         * Check to see if the pixrect data was set by mpr_static(), or by
         * actually creating the pixrect with mem_create() and drawing into
         * it.
         */
        if (mpr_d((Pixrect *) src)->md_flags & MP_I386)
	    ximage->bitmap_bit_order = LSBFirst;
        else
	    ximage->bitmap_bit_order = MSBFirst;
#else
#ifdef ultrix
        ximage->byte_order = LSBFirst;
        ximage->bitmap_bit_order = MSBFirst;
#else
        ximage->byte_order = MSBFirst;
        ximage->bitmap_bit_order = MSBFirst;
#endif				/* ~VAX */
#endif				/* ~i386 */
    } else {
    /* bitmap data is in Xlib bitmap format */
	ximage->byte_order = LSBFirst;
	ximage->bitmap_bit_order = LSBFirst;
        if (src_depth == 1) 
          ximage->bytes_per_line = (width + 7) >> 3;
    }

    if (src_depth == 1) {
	XPutImage(display, d, gc, ximage, xr, yr, x, y,
	    MIN(width, ximage->width), MIN(height, ximage->height));
    } else {
	register int     i, j;
	unsigned long    index;
	unsigned int	 size;
	char		*image_data;
	
	/*
	 * Create any space needed to convert the image data to pixel values
	 */
	size = ximage->height * ximage->bytes_per_line;
	if (size > last_size) {
	    if (data)
	      xv_free(data);
	    data = (unsigned char *)xv_malloc(size);
	    last_size = size;
	}
	
	/* 
	 * convert image from cms indices to X pixel values.
	 */
	image_data = ximage->data;
	for (i = 0; i < ximage->height; i++) {
	    for (j = 0; j < ximage->bytes_per_line; j++) {
		index = j + i * ximage->bytes_per_line;
		data[index] = cms->index_table[(unsigned char)image_data[index]];
	    }
	}
	
	ximage->data = (char *)data;
	XPutImage(display, d, gc, ximage, xr, yr, x, y,
		  MIN(width, ximage->width), MIN(height, ximage->height));
	ximage->data = image_data;
    }
    return (XV_OK);
}

Pkg_private     GC
Xp_xv_find_proper_gc(display, info, op)
    Display        	*display;
    Xv_Drawable_info 	*info;
    int	        	op;
{
    int             depth = xv_depth(info), i;
    Drawable        xid = xv_xid(info);
    XGCValues       gv;
    Xv_Screen       screen = xv_screen(info);
    Xv_xrectlist   *clip_xrects = screen_get_clip_rects(screen);
    short           xv_in_fullscreen = server_get_fullscreen(xv_server(info));
    struct gc_chain   *gcs, *gc_list, **ops_private_gcs;

    if (!GC_CHAIN_KEY)  
	    GC_CHAIN_KEY = xv_unique_key();
    ops_private_gcs = (struct gc_chain **) xv_get( screen, XV_KEY_DATA, GC_CHAIN_KEY );
    if (!ops_private_gcs) {
		ops_private_gcs = (struct gc_chain **) xv_calloc((PW_NUM_OPS+1),sizeof(struct gc_chain));
	    xv_set( screen, XV_KEY_DATA, GC_CHAIN_KEY, ops_private_gcs, 0 );
    }
    gc_list = ops_private_gcs[op];

    /*
     * If a new clipping rectangle has been set for this drawable since the
     * last invocation of this function, set all xid's in the gc list to an
     * invalid xid.
     */
    if (info->new_clipping) {
#ifndef SVR4
	for (i = 0; i < PW_NUM_OPS; i++)
#else SVR4
	for (i = 0; i <= PW_NUM_OPS; i++)
#endif SVR4
	    for (gcs = ops_private_gcs[i]; gcs != NULL; gcs = gcs->next)
		gcs->xid = INVALID_XID;
	info->new_clipping = FALSE;
    }
    if (!gc_list) {
	gc_list = ops_private_gcs[op] =
	    (struct gc_chain *) xv_calloc(1, sizeof(struct gc_chain));
	if (xv_in_fullscreen) {
	    gv.subwindow_mode = IncludeInferiors;
	    gc_list->gc = XCreateGC(display, xid, GCSubwindowMode, &gv);
	} else {
	    gc_list->gc = XCreateGC(display, xid, 0, 0);
	}
	gc_list->clipping_set = FALSE;
	gc_list->depth = depth;
	gc_list->next = NULL;

	/*
	 * Newly created GC. If clipping is enabled on the drawable, set the
	 * GCClipMask for the GC.
	 */
	if (clip_xrects->count) {
	    XSetClipRectangles(display, gc_list->gc, 0, 0,
		     clip_xrects->rect_array, clip_xrects->count, Unsorted);
	    gc_list->clipping_set = TRUE;
	}
	gc_list->xid = xid;
	return (gc_list->gc);
    } else {
	gcs = gc_list;
	while (gcs) {
	    if (gcs->depth == depth) {
		if (xv_in_fullscreen) {
		    gv.subwindow_mode = IncludeInferiors;
		} else {
		    gv.subwindow_mode = ClipByChildren;
		}

		/*
		 * The clipping_set field is redundant. A bug in XChangeGC
		 * (in Xlib) needs to fixed. If the current clip_mask and the
		 * cached clip_mask are both None, the cache need not be
		 * flushed. Remove clipping_set field when this gets fixed.
		 */
		if (gcs->clipping_set && !clip_xrects->count) {
		    gcs->clipping_set = FALSE;
		    gv.clip_mask = None;
		    XChangeGC(display, gcs->gc, GCSubwindowMode | GCClipMask, &gv);
		} else {
		    XChangeGC(display, gcs->gc, GCSubwindowMode, &gv);
		}

		/*
		 * If this is a different drawable since the last invocation
		 * and it has a clipping rectangle enabled, or, the clipping
		 * for the same drawable has changed since the last
		 * invocation, reset the clipping.
		 */
		if (clip_xrects->count && (gcs->xid != xid)) {
		    XSetClipRectangles(display, gcs->gc, 0, 0,
		     clip_xrects->rect_array, clip_xrects->count, Unsorted);
		    gcs->clipping_set = TRUE;
		}
		gcs->xid = xid;
		return (gcs->gc);
	    } else {
		if (gcs->next) {
		    gcs = gcs->next;
		} else {
		    struct gc_chain *new;
		    /*
		     * no gc of the same depth, need to create a new gc
		     */
		    gcs->next = new = (struct gc_chain *) xv_malloc(sizeof(struct gc_chain));
		    if (xv_in_fullscreen) {
			gv.subwindow_mode = IncludeInferiors;
			new->gc = XCreateGC(display, xid, GCSubwindowMode, &gv);
		    } else {
			new->gc = XCreateGC(display, xid, 0, 0);
		    }
		    new->depth = depth;
		    new->next = NULL;

		    /*
		     * Newly created GC. If clipping is enabled on the
		     * window, set the GC.
		     */
		    if (clip_xrects->count) {
			XSetClipRectangles(display, new->gc, 0, 0,
					   clip_xrects->rect_array, clip_xrects->count, Unsorted);
			new->clipping_set = TRUE;
		    }
		    new->xid = xid;
		    return (new->gc);
		}
	    }
	}
    }

}