684 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			684 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * Copyright © 2007 Keith Packard
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|  * Copyright © 2010-2011 Aaron Plattner
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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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| 
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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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| 
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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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| 
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| #include <X11/Xarch.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 "xf86CursorPriv.h"
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| #include "X11/extensions/render.h"
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| #include "X11/extensions/dpmsconst.h"
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| #include "X11/Xatom.h"
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| #include "picturestr.h"
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| #include "cursorstr.h"
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| #include "inputstr.h"
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| 
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| /*
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|  * Returns the rotation being performed by the server.  If the driver indicates
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|  * that it's handling the screen transform, then this returns RR_Rotate_0.
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|  */
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| static Rotation
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| xf86_crtc_cursor_rotation(xf86CrtcPtr crtc)
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| {
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|     if (crtc->driverIsPerformingTransform)
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|         return RR_Rotate_0;
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|     return crtc->rotation;
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| }
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| 
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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, int x_dst, int y_dst, int *x_src, int *y_src)
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| {
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|     int t;
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| 
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|     switch (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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|         t = x_dst;
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|         x_dst = height - y_dst - 1;
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|         y_dst = t;
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|         break;
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|     case RR_Rotate_180:
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|         x_dst = width - x_dst - 1;
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|         y_dst = height - y_dst - 1;
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|         break;
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|     case RR_Rotate_270:
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|         t = x_dst;
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|         x_dst = y_dst;
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|         y_dst = width - t - 1;
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|         break;
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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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|     *x_src = x_dst;
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|     *y_src = y_dst;
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| }
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| 
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| /*
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|  * Given a cursor source  coordinate, rotate to a screen coordinate
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|  */
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| static void
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| xf86_crtc_rotate_coord_back(Rotation rotation,
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|                             int width,
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|                             int height,
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|                             int x_dst, int y_dst, int *x_src, int *y_src)
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| {
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|     int t;
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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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| 
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|     switch (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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|         t = x_dst;
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|         x_dst = y_dst;
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|         y_dst = width - t - 1;
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|         break;
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|     case RR_Rotate_180:
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|         x_dst = width - x_dst - 1;
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|         y_dst = height - y_dst - 1;
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|         break;
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|     case RR_Rotate_270:
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|         t = x_dst;
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|         x_dst = height - y_dst - 1;
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|         y_dst = t;
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|         break;
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|     }
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|     *x_src = x_dst;
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|     *y_src = y_dst;
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| }
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| 
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| struct cursor_bit {
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|     CARD8 *byte;
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|     char bitpos;
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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 struct cursor_bit
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| cursor_bitpos(CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y,
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|               Bool mask)
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| {
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|     const int flags = cursor_info->Flags;
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|     const Bool interleaved =
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|         ! !(flags & (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 |
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|                      HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8 |
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|                      HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16 |
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|                      HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32 |
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|                      HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64));
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|     const int width = cursor_info->MaxWidth;
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|     const int height = cursor_info->MaxHeight;
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|     const int stride = interleaved ? width / 4 : width / 8;
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| 
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|     struct cursor_bit ret;
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| 
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|     image += y * stride;
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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) == 0) ==
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|         (X_BYTE_ORDER == X_BIG_ENDIAN))
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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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|     else if (mask)
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|         image += stride * height;
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| 
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|     ret.byte = image + (x / 8);
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|     ret.bitpos = x & 7;
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| 
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|     return ret;
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| }
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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, xf86CursorInfoPtr cursor_info, int x, int y, Bool mask)
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| {
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|     struct cursor_bit bit = cursor_bitpos(image, cursor_info, x, y, mask);
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| 
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|     return (*bit.byte >> bit.bitpos) & 1;
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| }
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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, xf86CursorInfoPtr cursor_info, int x, int y, Bool mask)
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| {
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|     struct cursor_bit bit = cursor_bitpos(image, cursor_info, x, y, mask);
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| 
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|     *bit.byte |= 1 << bit.bitpos;
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| }
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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 flags = cursor_info->Flags;
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|     CARD32 bits;
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|     const Rotation rotation = xf86_crtc_cursor_rotation(crtc);
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| 
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| #ifdef ARGB_CURSOR
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|     crtc->cursor_argb = FALSE;
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| #endif
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| 
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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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|             xf86_crtc_rotate_coord(rotation,
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|                                    cursor_info->MaxWidth,
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|                                    cursor_info->MaxHeight, x, y, &xin, &yin);
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|             if (get_bit(src, cursor_info, xin, yin, TRUE) ==
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|                 ((flags & HARDWARE_CURSOR_INVERT_MASK) == 0)) {
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|                 if (get_bit(src, cursor_info, 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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| /*
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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 ?
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|         dixLookupScreenPrivate(&cursor->devPrivates, CursorScreenKey, screen)
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|         : NULL;
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| 
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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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| 
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|     for (c = 0; c < xf86_config->num_crtc; c++) {
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|         xf86CrtcPtr crtc = xf86_config->crtc[c];
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| 
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|         if (crtc->enabled && !crtc->cursor_argb) {
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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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| 
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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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|         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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| 
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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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| 
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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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|         xf86CrtcPtr crtc = xf86_config->crtc[c];
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| 
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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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| 
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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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|         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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| 
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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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| 
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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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|         xf86CrtcPtr crtc = xf86_config->crtc[c];
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| 
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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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| 
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| void
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| xf86CrtcTransformCursorPos(xf86CrtcPtr crtc, int *x, int *y)
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| {
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|     ScrnInfoPtr scrn = crtc->scrn;
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|     ScreenPtr screen = scrn->pScreen;
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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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|     xf86CursorScreenPtr ScreenPriv =
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|         (xf86CursorScreenPtr) dixLookupPrivate(&screen->devPrivates,
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|                                                xf86CursorScreenKey);
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|     struct pict_f_vector v;
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|     int dx, dy;
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| 
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|     v.v[0] = (*x + ScreenPriv->HotX) + 0.5;
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|     v.v[1] = (*y + ScreenPriv->HotY) + 0.5;
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|     v.v[2] = 1;
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|     pixman_f_transform_point(&crtc->f_framebuffer_to_crtc, &v);
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|     /* cursor will have 0.5 added to it already so floor is sufficent */
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|     *x = floor(v.v[0]);
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|     *y = floor(v.v[1]);
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|     /*
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|      * Transform position of cursor upper left corner
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|      */
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|     xf86_crtc_rotate_coord_back(crtc->rotation, cursor_info->MaxWidth,
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|                                 cursor_info->MaxHeight, ScreenPriv->HotX,
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|                                 ScreenPriv->HotY, &dx, &dy);
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|     *x -= dx;
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|     *y -= dy;
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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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|     Bool in_range;
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| 
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|     /*
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|      * Transform position of cursor on screen
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|      */
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|     if (crtc->transform_in_use && !crtc->driverIsPerformingTransform)
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|         xf86CrtcTransformCursorPos(crtc, &x, &y);
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|     else {
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|         x -= crtc->x;
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|         y -= crtc->y;
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|     }
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| 
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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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|         in_range = FALSE;
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|         x = 0;
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|         y = 0;
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|     }
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| 
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|     crtc->cursor_in_range = in_range;
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| 
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|     if (in_range) {
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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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| 
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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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| 
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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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|         xf86CrtcPtr crtc = xf86_config->crtc[c];
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| 
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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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| /*
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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)
 | |
| {
 | |
|     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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|     const Rotation rotation = xf86_crtc_cursor_rotation(crtc);
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| 
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| #ifdef ARGB_CURSOR
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|     crtc->cursor_argb = FALSE;
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| #endif
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| 
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|     if (rotation == RR_Rotate_0)
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|         cursor_image = src;
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|     else {
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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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| 
 | |
|         cursor_image = xf86_config->cursor_image;
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|         memset(cursor_image, 0, cursor_info->MaxHeight * stride);
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| 
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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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|                 xf86_crtc_rotate_coord(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, cursor_info, xin, yin, FALSE))
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|                     set_bit(cursor_image, cursor_info, x, y, FALSE);
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|                 if (get_bit(src, cursor_info, xin, yin, TRUE))
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|                     set_bit(cursor_image, cursor_info, 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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|  */
 | |
| static void
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| xf86_load_cursor_image(ScrnInfoPtr scrn, unsigned char *src)
 | |
| {
 | |
|     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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|         xf86CrtcPtr crtc = xf86_config->crtc[c];
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| 
 | |
|         if (crtc->enabled) {
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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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|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| static Bool
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| xf86_use_hw_cursor(ScreenPtr screen, CursorPtr cursor)
 | |
| {
 | |
|     ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
 | |
|     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | |
|     xf86CursorInfoPtr cursor_info = xf86_config->cursor_info;
 | |
| 
 | |
|     cursor = RefCursor(cursor);
 | |
|     if (xf86_config->cursor)
 | |
|         FreeCursor(xf86_config->cursor, None);
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|     xf86_config->cursor = cursor;
 | |
| 
 | |
|     if (cursor->bits->width > cursor_info->MaxWidth ||
 | |
|         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 = xf86ScreenToScrn(screen);
 | |
|     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | |
|     xf86CursorInfoPtr cursor_info = xf86_config->cursor_info;
 | |
| 
 | |
|     cursor = RefCursor(cursor);
 | |
|     if (xf86_config->cursor)
 | |
|         FreeCursor(xf86_config->cursor, None);
 | |
|     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;
 | |
|     const Rotation rotation = xf86_crtc_cursor_rotation(crtc);
 | |
| 
 | |
|     for (y = 0; y < image_height; y++)
 | |
|         for (x = 0; x < image_width; x++) {
 | |
|             xf86_crtc_rotate_coord(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 = xf86ScreenToScrn(screen);
 | |
|     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | |
|     xf86CursorInfoPtr cursor_info;
 | |
| 
 | |
|     cursor_info = xf86CreateCursorInfoRec();
 | |
|     if (!cursor_info)
 | |
|         return FALSE;
 | |
| 
 | |
|     xf86_config->cursor_image = malloc(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;
 | |
|     xf86CursorScreenPtr cursor_screen_priv;
 | |
| 
 | |
|     /* initial mode setting will not have set a screen yet.
 | |
|        May be called before the devices are initialised.
 | |
|      */
 | |
|     if (!screen || !inputInfo.pointer)
 | |
|         return;
 | |
|     cursor_screen_priv = dixLookupPrivate(&screen->devPrivates,
 | |
|                                           xf86CursorScreenKey);
 | |
|     /* return if HW cursor is inactive, to avoid displaying two cursors */
 | |
|     if (!cursor_screen_priv || !cursor_screen_priv->isUp)
 | |
|         return;
 | |
| 
 | |
|     scrn = xf86ScreenToScrn(screen);
 | |
|     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) {
 | |
|         void *src =
 | |
|             dixLookupScreenPrivate(&cursor->devPrivates, CursorScreenKey,
 | |
|                                    screen);
 | |
| #ifdef ARGB_CURSOR
 | |
|         if (cursor->bits->argb && cursor_info->LoadCursorARGB)
 | |
|             (*cursor_info->LoadCursorARGB) (scrn, cursor);
 | |
|         else if (src)
 | |
| #endif
 | |
|             (*cursor_info->LoadCursorImage) (scrn, src);
 | |
| 
 | |
|         x += scrn->frameX0 + cursor_screen_priv->HotX;
 | |
|         y += scrn->frameY0 + cursor_screen_priv->HotY;
 | |
|         (*cursor_info->SetCursorPosition) (scrn, x, y);
 | |
|     }
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Clean up CRTC-based cursor code
 | |
|  */
 | |
| void
 | |
| xf86_cursors_fini(ScreenPtr screen)
 | |
| {
 | |
|     ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
 | |
|     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
 | |
| 
 | |
|     if (xf86_config->cursor_info) {
 | |
|         xf86DestroyCursorInfoRec(xf86_config->cursor_info);
 | |
|         xf86_config->cursor_info = NULL;
 | |
|     }
 | |
|     free(xf86_config->cursor_image);
 | |
|     xf86_config->cursor_image = NULL;
 | |
|     if (xf86_config->cursor) {
 | |
|         FreeCursor(xf86_config->cursor, None);
 | |
|         xf86_config->cursor = NULL;
 | |
|     }
 | |
| }
 |