653 lines
17 KiB
C
653 lines
17 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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/*
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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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int t;
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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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* 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,
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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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int t;
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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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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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* 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) == 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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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 ? dixLookupPrivate(&cursor->devPrivates,
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screen) : 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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_X_EXPORT 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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_X_EXPORT 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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Bool in_range;
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int dx, dy;
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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)
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{
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PictVector v;
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v.vector[0] = IntToxFixed (x); v.vector[1] = IntToxFixed (y); v.vector[2] = IntToxFixed(1);
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PictureTransformPoint (&crtc->framebuffer_to_crtc, &v);
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x = xFixedToInt (v.vector[0]); y = xFixedToInt (v.vector[1]);
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}
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else
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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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/*
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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,
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cursor_info->MaxWidth,
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cursor_info->MaxHeight,
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0, 0, &dx, &dy);
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x -= dx;
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y -= dy;
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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->MaxHeight * 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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if (xf86_config->cursor)
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FreeCursor (xf86_config->cursor, None);
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xf86_config->cursor = cursor;
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++cursor->refcnt;
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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;
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return TRUE;
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}
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static Bool
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xf86_use_hw_cursor_argb (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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if (xf86_config->cursor)
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FreeCursor (xf86_config->cursor, None);
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xf86_config->cursor = cursor;
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++cursor->refcnt;
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/* Make sure ARGB support is available */
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if ((cursor_info->Flags & HARDWARE_CURSOR_ARGB) == 0)
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return FALSE;
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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;
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return TRUE;
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}
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static void
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xf86_crtc_load_cursor_argb (xf86CrtcPtr crtc, CursorPtr cursor)
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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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CARD32 *cursor_source = (CARD32 *) cursor->bits->argb;
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int x, y;
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int xin, yin;
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CARD32 bits;
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int source_width = cursor->bits->width;
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int source_height = cursor->bits->height;
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int image_width = cursor_info->MaxWidth;
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int image_height = cursor_info->MaxHeight;
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for (y = 0; y < image_height; y++)
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for (x = 0; x < image_width; x++)
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{
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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);
|
|
}
|
|
}
|
|
|
|
_X_EXPORT 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
|
|
*/
|
|
|
|
_X_EXPORT 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 (&x, &y);
|
|
if (!(cursor_info->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN))
|
|
(*cursor_info->HideCursor)(scrn);
|
|
|
|
if (cursor)
|
|
{
|
|
#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
|
|
void *src = dixLookupPrivate(&cursor->devPrivates, screen);
|
|
#else
|
|
void *src = cursor->devPriv[screen->myNum];
|
|
#endif
|
|
#ifdef ARGB_CURSOR
|
|
if (cursor->bits->argb && cursor_info->LoadCursorARGB)
|
|
(*cursor_info->LoadCursorARGB) (scrn, cursor);
|
|
else if (src)
|
|
#endif
|
|
(*cursor_info->LoadCursorImage)(cursor_info->pScrn, src);
|
|
|
|
(*cursor_info->SetCursorPosition)(cursor_info->pScrn, x, y);
|
|
(*cursor_info->ShowCursor)(cursor_info->pScrn);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Clean up CRTC-based cursor code
|
|
*/
|
|
_X_EXPORT 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;
|
|
}
|
|
if (xf86_config->cursor)
|
|
{
|
|
FreeCursor (xf86_config->cursor, None);
|
|
xf86_config->cursor = NULL;
|
|
}
|
|
}
|