609 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			609 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
/*
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 * Copyright © 2007 Keith Packard
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 *
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 * Permission to use, copy, modify, distribute, and sell this software and its
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 * documentation for any purpose is hereby granted without fee, provided that
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 * the above copyright notice appear in all copies and that both that copyright
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 * notice and this permission notice appear in supporting documentation, and
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 * that the name of the copyright holders not be used in advertising or
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 * publicity pertaining to distribution of the software without specific,
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 * written prior permission.  The copyright holders make no representations
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 * about the 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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 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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 * OF THIS SOFTWARE.
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 */
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#else
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#endif
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#include <stddef.h>
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#include <string.h>
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#include <stdio.h>
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#include "xf86.h"
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#include "xf86DDC.h"
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#include "xf86Crtc.h"
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#include "xf86Modes.h"
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#include "xf86RandR12.h"
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#include "X11/extensions/render.h"
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#define DPMS_SERVER
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#include "X11/extensions/dpms.h"
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#include "X11/Xatom.h"
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#ifdef RENDER
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#include "picturestr.h"
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#endif
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#include "cursorstr.h"
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#include "inputstr.h"
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/*
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 * Given a screen coordinate, rotate back to a cursor source coordinate
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 */
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static void
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xf86_crtc_rotate_coord (Rotation    rotation,
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			int	    width,
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			int	    height,
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			int	    x_dst,
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			int	    y_dst,
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			int	    *x_src,
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			int	    *y_src)
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{
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    if (rotation & RR_Reflect_X)
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	x_dst = width - x_dst - 1;
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    if (rotation & RR_Reflect_Y)
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	y_dst = height - y_dst - 1;
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    switch (rotation & 0xf) {
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    case RR_Rotate_0:
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	*x_src = x_dst;
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	*y_src = y_dst;
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	break;
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    case RR_Rotate_90:
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	*x_src = height - y_dst - 1;
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	*y_src = x_dst;
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	break;
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    case RR_Rotate_180:
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	*x_src = width - x_dst - 1;
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	*y_src = height - y_dst - 1;
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	break;
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    case RR_Rotate_270:
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	*x_src = y_dst;
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	*y_src = width - x_dst - 1;
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	break;
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    }
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}
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/*
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 * Convert an x coordinate to a position within the cursor bitmap
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 */
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static int
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cursor_bitpos (int flags, int x, Bool mask)
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{
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    if (flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK)
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	mask = !mask;
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    if (flags & HARDWARE_CURSOR_NIBBLE_SWAPPED)
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	x = (x & ~3) | (3 - (x & 3));
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    if (flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST)
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	x = (x & ~7) | (7 - (x & 7));
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    if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1)
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	x = (x << 1) + mask;
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    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8)
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	x = ((x & ~7) << 1) | (mask << 3) | (x & 7);
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    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16)
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	x = ((x & ~15) << 1) | (mask << 4) | (x & 15);
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    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32)
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	x = ((x & ~31) << 1) | (mask << 5) | (x & 31);
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    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64)
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	x = ((x & ~63) << 1) | (mask << 6) | (x & 63);
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    return x;
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}
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/*
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 * Fetch one bit from a cursor bitmap
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 */
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static CARD8
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get_bit (CARD8 *image, int stride, int flags, int x, int y, Bool mask)
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{
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    x = cursor_bitpos (flags, x, mask);
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    image += y * stride;
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    return (image[(x >> 3)] >> (x & 7)) & 1;
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}
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/*
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 * Set one bit in a cursor bitmap
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 */
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static void
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set_bit (CARD8 *image, int stride, int flags, int x, int y, Bool mask)
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{
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    x = cursor_bitpos (flags, x, mask);
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    image += y * stride;
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    image[(x >> 3)] |= 1 << (x & 7);
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}
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/*
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 * Load a two color cursor into a driver that supports only ARGB cursors
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 */
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static void
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xf86_crtc_convert_cursor_to_argb (xf86CrtcPtr crtc, unsigned char *src)
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{
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    ScrnInfoPtr		scrn = crtc->scrn;
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
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    CARD32		*cursor_image = (CARD32 *) xf86_config->cursor_image;
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    int			x, y;
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    int			xin, yin;
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    int			stride = cursor_info->MaxWidth >> 2;
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    int			flags = cursor_info->Flags;
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    CARD32		bits;
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#ifdef ARGB_CURSOR
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    crtc->cursor_argb = FALSE;
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#endif
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    for (y = 0; y < cursor_info->MaxHeight; y++)
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	for (x = 0; x < cursor_info->MaxWidth; x++) 
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	{
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	    xf86_crtc_rotate_coord (crtc->rotation,
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				    cursor_info->MaxWidth,
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				    cursor_info->MaxHeight,
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				    x, y, &xin, &yin);
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	    if (get_bit (src, stride, flags, xin, yin, TRUE) ==
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		((flags & HARDWARE_CURSOR_INVERT_MASK) == 0))
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	    {
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		if (get_bit (src, stride, flags, xin, yin, FALSE))
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		    bits = xf86_config->cursor_fg;
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		else
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		    bits = xf86_config->cursor_bg;
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	    }
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	    else
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		bits = 0;
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	    cursor_image[y * cursor_info->MaxWidth + x] = bits;
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	}
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    crtc->funcs->load_cursor_argb (crtc, cursor_image);
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}
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/*
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 * Set the colors for a two-color cursor (ignore for ARGB cursors)
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 */
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static void
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xf86_set_cursor_colors (ScrnInfoPtr scrn, int bg, int fg)
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{
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    ScreenPtr		screen = scrn->pScreen;
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    CursorPtr		cursor = xf86_config->cursor;
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    int			c;
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    CARD8		*bits = cursor ? cursor->devPriv[screen->myNum] : NULL;
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    /* Save ARGB versions of these colors */
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    xf86_config->cursor_fg = (CARD32) fg | 0xff000000;
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    xf86_config->cursor_bg = (CARD32) bg | 0xff000000;
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    for (c = 0; c < xf86_config->num_crtc; c++)
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    {
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	xf86CrtcPtr crtc = xf86_config->crtc[c];
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	if (crtc->enabled && !crtc->cursor_argb)
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	{
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	    if (crtc->funcs->load_cursor_image)
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		crtc->funcs->set_cursor_colors (crtc, bg, fg);
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	    else if (bits)
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		xf86_crtc_convert_cursor_to_argb (crtc, bits);
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	}
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    }
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}
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static void
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xf86_crtc_hide_cursor (xf86CrtcPtr crtc)
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{
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    if (crtc->cursor_shown)
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    {
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	crtc->funcs->hide_cursor (crtc);
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	crtc->cursor_shown = FALSE;
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    }
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}
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void
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xf86_hide_cursors (ScrnInfoPtr scrn)
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{
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    int			c;
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    xf86_config->cursor_on = FALSE;
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    for (c = 0; c < xf86_config->num_crtc; c++)
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    {
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	xf86CrtcPtr crtc = xf86_config->crtc[c];
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	if (crtc->enabled)
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	    xf86_crtc_hide_cursor (crtc);
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    }
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}
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static void
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xf86_crtc_show_cursor (xf86CrtcPtr crtc)
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{
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    if (!crtc->cursor_shown && crtc->cursor_in_range)
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    {
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	crtc->funcs->show_cursor (crtc);
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	crtc->cursor_shown = TRUE;
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    }
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}
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void
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xf86_show_cursors (ScrnInfoPtr scrn)
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{
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    int			c;
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    xf86_config->cursor_on = TRUE;
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    for (c = 0; c < xf86_config->num_crtc; c++)
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    {
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	xf86CrtcPtr crtc = xf86_config->crtc[c];
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	if (crtc->enabled)
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	    xf86_crtc_show_cursor (crtc);
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    }
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}
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static void
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xf86_crtc_set_cursor_position (xf86CrtcPtr crtc, int x, int y)
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{
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    ScrnInfoPtr		scrn = crtc->scrn;
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
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    DisplayModePtr	mode = &crtc->mode;
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    int			x_temp;
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    int			y_temp;
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    Bool		in_range;
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    /* 
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     * Move to crtc coordinate space
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     */
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    x -= crtc->x;
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    y -= crtc->y;
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    /*
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     * Rotate
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     */
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    switch ((crtc->rotation) & 0xf) {
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    case RR_Rotate_0:
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	break;
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    case RR_Rotate_90:
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	x_temp = y;
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	y_temp = mode->VDisplay - cursor_info->MaxWidth - x;
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	x = x_temp;
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	y = y_temp;
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	break;
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    case RR_Rotate_180:
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	x_temp = mode->HDisplay - cursor_info->MaxWidth - x;
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	y_temp = mode->VDisplay - cursor_info->MaxHeight - y;
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	x = x_temp;
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	y = y_temp;
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	break;
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    case RR_Rotate_270:
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	x_temp = mode->HDisplay - cursor_info->MaxHeight -  y;
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	y_temp = x;
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	x = x_temp;
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	y = y_temp;
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	break;
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    }
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    /*
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     * Reflect
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     */
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    if (crtc->rotation & RR_Reflect_X)
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	x = mode->HDisplay - cursor_info->MaxWidth - x;
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    if (crtc->rotation & RR_Reflect_Y)
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	y = mode->VDisplay - cursor_info->MaxHeight - y;
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    /*
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     * Disable the cursor when it is outside the viewport
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     */
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    in_range = TRUE;
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    if (x >= mode->HDisplay || y >= mode->VDisplay ||
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	x <= -cursor_info->MaxWidth || y <= -cursor_info->MaxHeight) 
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    {
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	in_range = FALSE;
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	x = 0;
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	y = 0;
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    }
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    crtc->cursor_in_range = in_range;
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    if (in_range)
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    {
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	crtc->funcs->set_cursor_position (crtc, x, y);
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	xf86_crtc_show_cursor (crtc);
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    }
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    else
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	xf86_crtc_hide_cursor (crtc);
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}
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static void
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xf86_set_cursor_position (ScrnInfoPtr scrn, int x, int y)
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{
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    int			c;
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    /* undo what xf86HWCurs did to the coordinates */
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    x += scrn->frameX0;
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    y += scrn->frameY0;
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    for (c = 0; c < xf86_config->num_crtc; c++)
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    {
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	xf86CrtcPtr crtc = xf86_config->crtc[c];
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	if (crtc->enabled)
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	    xf86_crtc_set_cursor_position (crtc, x, y);
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    }
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}
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/*
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 * Load a two-color cursor into a crtc, performing rotation as needed
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 */
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static void
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xf86_crtc_load_cursor_image (xf86CrtcPtr crtc, CARD8 *src)
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{
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    ScrnInfoPtr		scrn = crtc->scrn;
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
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    CARD8		*cursor_image;
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#ifdef ARGB_CURSOR
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    crtc->cursor_argb = FALSE;
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#endif
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    if (crtc->rotation == RR_Rotate_0)
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	cursor_image = src;
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    else
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    {
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        int x, y;
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    	int xin, yin;
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	int stride = cursor_info->MaxWidth >> 2;
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	int flags = cursor_info->Flags;
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	cursor_image = xf86_config->cursor_image;
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	memset(cursor_image, 0, cursor_info->MaxWidth * stride);
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        for (y = 0; y < cursor_info->MaxHeight; y++)
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	    for (x = 0; x < cursor_info->MaxWidth; x++) 
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	    {
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		xf86_crtc_rotate_coord (crtc->rotation,
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					cursor_info->MaxWidth,
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					cursor_info->MaxHeight,
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					x, y, &xin, &yin);
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		if (get_bit(src, stride, flags, xin, yin, FALSE))
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		    set_bit(cursor_image, stride, flags, x, y, FALSE);
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		if (get_bit(src, stride, flags, xin, yin, TRUE))
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		    set_bit(cursor_image, stride, flags, x, y, TRUE);
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	    }
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    }
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    crtc->funcs->load_cursor_image (crtc, cursor_image);
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}
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/*
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 * Load a cursor image into all active CRTCs
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 */
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static void
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xf86_load_cursor_image (ScrnInfoPtr scrn, unsigned char *src)
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{
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    int			c;
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    for (c = 0; c < xf86_config->num_crtc; c++)
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    {
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	xf86CrtcPtr crtc = xf86_config->crtc[c];
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	if (crtc->enabled)
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	{
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	    if (crtc->funcs->load_cursor_image)
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		xf86_crtc_load_cursor_image (crtc, src);
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	    else if (crtc->funcs->load_cursor_argb)
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		xf86_crtc_convert_cursor_to_argb (crtc, src);
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	}
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    }
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}
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static Bool
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xf86_use_hw_cursor (ScreenPtr screen, CursorPtr cursor)
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{
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    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
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    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
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    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
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    xf86_config->cursor = cursor;
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    if (cursor->bits->width > cursor_info->MaxWidth ||
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	cursor->bits->height> cursor_info->MaxHeight)
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	return FALSE;
 | 
						|
 | 
						|
    return TRUE;
 | 
						|
}
 | 
						|
 | 
						|
static Bool
 | 
						|
xf86_use_hw_cursor_argb (ScreenPtr screen, CursorPtr cursor)
 | 
						|
{
 | 
						|
    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
 | 
						|
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | 
						|
    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
 | 
						|
    
 | 
						|
    xf86_config->cursor = cursor;
 | 
						|
    
 | 
						|
    /* Make sure ARGB support is available */
 | 
						|
    if ((cursor_info->Flags & HARDWARE_CURSOR_ARGB) == 0)
 | 
						|
	return FALSE;
 | 
						|
    
 | 
						|
    if (cursor->bits->width > cursor_info->MaxWidth ||
 | 
						|
	cursor->bits->height> cursor_info->MaxHeight)
 | 
						|
	return FALSE;
 | 
						|
 | 
						|
    return TRUE;
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
xf86_crtc_load_cursor_argb (xf86CrtcPtr crtc, CursorPtr cursor)
 | 
						|
{
 | 
						|
    ScrnInfoPtr		scrn = crtc->scrn;
 | 
						|
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | 
						|
    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
 | 
						|
    CARD32		*cursor_image = (CARD32 *) xf86_config->cursor_image;
 | 
						|
    CARD32		*cursor_source = (CARD32 *) cursor->bits->argb;
 | 
						|
    int			x, y;
 | 
						|
    int			xin, yin;
 | 
						|
    CARD32		bits;
 | 
						|
    int			source_width = cursor->bits->width;
 | 
						|
    int			source_height = cursor->bits->height;
 | 
						|
    int			image_width = cursor_info->MaxWidth;
 | 
						|
    int			image_height = cursor_info->MaxHeight;
 | 
						|
    
 | 
						|
    for (y = 0; y < image_height; y++)
 | 
						|
	for (x = 0; x < image_width; x++)
 | 
						|
	{
 | 
						|
	    xf86_crtc_rotate_coord (crtc->rotation, image_width, image_height,
 | 
						|
				    x, y, &xin, &yin);
 | 
						|
	    if (xin < source_width && yin < source_height)
 | 
						|
		bits = cursor_source[yin * source_width + xin];
 | 
						|
	    else
 | 
						|
		bits = 0;
 | 
						|
	    cursor_image[y * image_width + x] = bits;
 | 
						|
	}
 | 
						|
    
 | 
						|
    crtc->funcs->load_cursor_argb (crtc, cursor_image);
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
xf86_load_cursor_argb (ScrnInfoPtr scrn, CursorPtr cursor)
 | 
						|
{
 | 
						|
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | 
						|
    int			c;
 | 
						|
 | 
						|
    for (c = 0; c < xf86_config->num_crtc; c++)
 | 
						|
    {
 | 
						|
	xf86CrtcPtr crtc = xf86_config->crtc[c];
 | 
						|
 | 
						|
	if (crtc->enabled)
 | 
						|
	    xf86_crtc_load_cursor_argb (crtc, cursor);
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
Bool
 | 
						|
xf86_cursors_init (ScreenPtr screen, int max_width, int max_height, int flags)
 | 
						|
{
 | 
						|
    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
 | 
						|
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | 
						|
    xf86CursorInfoPtr	cursor_info;
 | 
						|
 | 
						|
    cursor_info = xf86CreateCursorInfoRec();
 | 
						|
    if (!cursor_info)
 | 
						|
	return FALSE;
 | 
						|
 | 
						|
    xf86_config->cursor_image = xalloc (max_width * max_height * 4);
 | 
						|
 | 
						|
    if (!xf86_config->cursor_image)
 | 
						|
    {
 | 
						|
	xf86DestroyCursorInfoRec (cursor_info);
 | 
						|
	return FALSE;
 | 
						|
    }
 | 
						|
	
 | 
						|
    xf86_config->cursor_info = cursor_info;
 | 
						|
 | 
						|
    cursor_info->MaxWidth = max_width;
 | 
						|
    cursor_info->MaxHeight = max_height;
 | 
						|
    cursor_info->Flags = flags;
 | 
						|
 | 
						|
    cursor_info->SetCursorColors = xf86_set_cursor_colors;
 | 
						|
    cursor_info->SetCursorPosition = xf86_set_cursor_position;
 | 
						|
    cursor_info->LoadCursorImage = xf86_load_cursor_image;
 | 
						|
    cursor_info->HideCursor = xf86_hide_cursors;
 | 
						|
    cursor_info->ShowCursor = xf86_show_cursors;
 | 
						|
    cursor_info->UseHWCursor = xf86_use_hw_cursor;
 | 
						|
#ifdef ARGB_CURSOR
 | 
						|
    if (flags & HARDWARE_CURSOR_ARGB)
 | 
						|
    {
 | 
						|
	cursor_info->UseHWCursorARGB = xf86_use_hw_cursor_argb;
 | 
						|
	cursor_info->LoadCursorARGB = xf86_load_cursor_argb;
 | 
						|
    }
 | 
						|
#endif
 | 
						|
    
 | 
						|
    xf86_config->cursor = NULL;
 | 
						|
    xf86_hide_cursors (scrn);
 | 
						|
    
 | 
						|
    return xf86InitCursor (screen, cursor_info);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * Called when anything on the screen is reconfigured.
 | 
						|
 *
 | 
						|
 * Reloads cursor images as needed, then adjusts cursor positions
 | 
						|
 */
 | 
						|
 | 
						|
void
 | 
						|
xf86_reload_cursors (ScreenPtr screen)
 | 
						|
{
 | 
						|
    ScrnInfoPtr		scrn;
 | 
						|
    xf86CrtcConfigPtr   xf86_config;
 | 
						|
    xf86CursorInfoPtr   cursor_info;
 | 
						|
    CursorPtr		cursor;
 | 
						|
    int			x, y;
 | 
						|
    
 | 
						|
    /* initial mode setting will not have set a screen yet */
 | 
						|
    if (!screen)
 | 
						|
	return;
 | 
						|
    scrn = xf86Screens[screen->myNum];
 | 
						|
    xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | 
						|
 | 
						|
    /* make sure the cursor code has been initialized */
 | 
						|
    cursor_info = xf86_config->cursor_info;
 | 
						|
    if (!cursor_info)
 | 
						|
	return;
 | 
						|
    
 | 
						|
    cursor = xf86_config->cursor;
 | 
						|
    GetSpritePosition (inputInfo.pointer, &x, &y);
 | 
						|
    if (!(cursor_info->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN))
 | 
						|
	(*cursor_info->HideCursor)(scrn);
 | 
						|
 | 
						|
    if (cursor)
 | 
						|
    {
 | 
						|
#ifdef ARGB_CURSOR
 | 
						|
	if (cursor->bits->argb && cursor_info->LoadCursorARGB)
 | 
						|
	    (*cursor_info->LoadCursorARGB) (scrn, cursor);
 | 
						|
	else
 | 
						|
#endif
 | 
						|
	    (*cursor_info->LoadCursorImage)(cursor_info->pScrn,
 | 
						|
					    cursor->devPriv[screen->myNum]);
 | 
						|
 | 
						|
	(*cursor_info->SetCursorPosition)(cursor_info->pScrn, x, y);
 | 
						|
	(*cursor_info->ShowCursor)(cursor_info->pScrn);
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * Clean up CRTC-based cursor code
 | 
						|
 */
 | 
						|
void
 | 
						|
xf86_cursors_fini (ScreenPtr screen)
 | 
						|
{
 | 
						|
    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
 | 
						|
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | 
						|
    
 | 
						|
    if (xf86_config->cursor_info)
 | 
						|
    {
 | 
						|
	xf86DestroyCursorInfoRec (xf86_config->cursor_info);
 | 
						|
	xf86_config->cursor_info = NULL;
 | 
						|
    }
 | 
						|
    if (xf86_config->cursor_image)
 | 
						|
    {
 | 
						|
	xfree (xf86_config->cursor_image);
 | 
						|
	xf86_config->cursor_image = NULL;
 | 
						|
    }
 | 
						|
}
 |