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-rw-r--r--xorg-server/hw/xfree86/modes/xf86Cursors.c1344
1 files changed, 672 insertions, 672 deletions
diff --git a/xorg-server/hw/xfree86/modes/xf86Cursors.c b/xorg-server/hw/xfree86/modes/xf86Cursors.c
index f90ecc227..3e765e6ff 100644
--- a/xorg-server/hw/xfree86/modes/xf86Cursors.c
+++ b/xorg-server/hw/xfree86/modes/xf86Cursors.c
@@ -1,672 +1,672 @@
-/*
- * Copyright © 2007 Keith Packard
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting documentation, and
- * that the name of the copyright holders not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. The copyright holders make no representations
- * about the suitability of this software for any purpose. It is provided "as
- * is" without express or implied warranty.
- *
- * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#else
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#endif
-
-#include <stddef.h>
-#include <string.h>
-#include <stdio.h>
-
-#include "xf86.h"
-#include "xf86DDC.h"
-#include "xf86Crtc.h"
-#include "xf86Modes.h"
-#include "xf86RandR12.h"
-#include "xf86CursorPriv.h"
-#include "X11/extensions/render.h"
-#include "X11/extensions/dpmsconst.h"
-#include "X11/Xatom.h"
-#include "picturestr.h"
-#include "cursorstr.h"
-#include "inputstr.h"
-
-/*
- * Given a screen coordinate, rotate back to a cursor source coordinate
- */
-static void
-xf86_crtc_rotate_coord (Rotation rotation,
- int width,
- int height,
- int x_dst,
- int y_dst,
- int *x_src,
- int *y_src)
-{
- int t;
-
- switch (rotation & 0xf) {
- case RR_Rotate_0:
- break;
- case RR_Rotate_90:
- t = x_dst;
- x_dst = height - y_dst - 1;
- y_dst = t;
- break;
- case RR_Rotate_180:
- x_dst = width - x_dst - 1;
- y_dst = height - y_dst - 1;
- break;
- case RR_Rotate_270:
- t = x_dst;
- x_dst = y_dst;
- y_dst = width - t - 1;
- break;
- }
- if (rotation & RR_Reflect_X)
- x_dst = width - x_dst - 1;
- if (rotation & RR_Reflect_Y)
- y_dst = height - y_dst - 1;
- *x_src = x_dst;
- *y_src = y_dst;
-}
-
-/*
- * Given a cursor source coordinate, rotate to a screen coordinate
- */
-static void
-xf86_crtc_rotate_coord_back (Rotation rotation,
- int width,
- int height,
- int x_dst,
- int y_dst,
- int *x_src,
- int *y_src)
-{
- int t;
-
- if (rotation & RR_Reflect_X)
- x_dst = width - x_dst - 1;
- if (rotation & RR_Reflect_Y)
- y_dst = height - y_dst - 1;
-
- switch (rotation & 0xf) {
- case RR_Rotate_0:
- break;
- case RR_Rotate_90:
- t = x_dst;
- x_dst = y_dst;
- y_dst = width - t - 1;
- break;
- case RR_Rotate_180:
- x_dst = width - x_dst - 1;
- y_dst = height - y_dst - 1;
- break;
- case RR_Rotate_270:
- t = x_dst;
- x_dst = height - y_dst - 1;
- y_dst = t;
- break;
- }
- *x_src = x_dst;
- *y_src = y_dst;
-}
-
-/*
- * Convert an x coordinate to a position within the cursor bitmap
- */
-static int
-cursor_bitpos (int flags, int x, Bool mask)
-{
- if (flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK)
- mask = !mask;
- if (flags & HARDWARE_CURSOR_NIBBLE_SWAPPED)
- x = (x & ~3) | (3 - (x & 3));
- if (((flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST) == 0) ==
- (X_BYTE_ORDER == X_BIG_ENDIAN))
- x = (x & ~7) | (7 - (x & 7));
- if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1)
- x = (x << 1) + mask;
- else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8)
- x = ((x & ~7) << 1) | (mask << 3) | (x & 7);
- else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16)
- x = ((x & ~15) << 1) | (mask << 4) | (x & 15);
- else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32)
- x = ((x & ~31) << 1) | (mask << 5) | (x & 31);
- else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64)
- x = ((x & ~63) << 1) | (mask << 6) | (x & 63);
- return x;
-}
-
-/*
- * Fetch one bit from a cursor bitmap
- */
-static CARD8
-get_bit (CARD8 *image, int stride, int flags, int x, int y, Bool mask)
-{
- x = cursor_bitpos (flags, x, mask);
- image += y * stride;
- return (image[(x >> 3)] >> (x & 7)) & 1;
-}
-
-/*
- * Set one bit in a cursor bitmap
- */
-static void
-set_bit (CARD8 *image, int stride, int flags, int x, int y, Bool mask)
-{
- x = cursor_bitpos (flags, x, mask);
- image += y * stride;
- image[(x >> 3)] |= 1 << (x & 7);
-}
-
-/*
- * Load a two color cursor into a driver that supports only ARGB cursors
- */
-static void
-xf86_crtc_convert_cursor_to_argb (xf86CrtcPtr crtc, unsigned char *src)
-{
- 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;
- int x, y;
- int xin, yin;
- int stride = cursor_info->MaxWidth >> 2;
- int flags = cursor_info->Flags;
- CARD32 bits;
-
-#ifdef ARGB_CURSOR
- crtc->cursor_argb = FALSE;
-#endif
-
- for (y = 0; y < cursor_info->MaxHeight; y++)
- for (x = 0; x < cursor_info->MaxWidth; x++)
- {
- xf86_crtc_rotate_coord (crtc->rotation,
- cursor_info->MaxWidth,
- cursor_info->MaxHeight,
- x, y, &xin, &yin);
- if (get_bit (src, stride, flags, xin, yin, TRUE) ==
- ((flags & HARDWARE_CURSOR_INVERT_MASK) == 0))
- {
- if (get_bit (src, stride, flags, xin, yin, FALSE))
- bits = xf86_config->cursor_fg;
- else
- bits = xf86_config->cursor_bg;
- }
- else
- bits = 0;
- cursor_image[y * cursor_info->MaxWidth + x] = bits;
- }
- crtc->funcs->load_cursor_argb (crtc, cursor_image);
-}
-
-/*
- * Set the colors for a two-color cursor (ignore for ARGB cursors)
- */
-static void
-xf86_set_cursor_colors (ScrnInfoPtr scrn, int bg, int fg)
-{
- ScreenPtr screen = scrn->pScreen;
- xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
- CursorPtr cursor = xf86_config->cursor;
- int c;
- CARD8 *bits = cursor ?
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
- dixLookupPrivate(&cursor->devPrivates, CursorScreenKey(screen))
-#else
- cursor->devPriv[screen->myNum]
-#endif
- : NULL;
-
- /* Save ARGB versions of these colors */
- xf86_config->cursor_fg = (CARD32) fg | 0xff000000;
- xf86_config->cursor_bg = (CARD32) bg | 0xff000000;
-
- for (c = 0; c < xf86_config->num_crtc; c++)
- {
- xf86CrtcPtr crtc = xf86_config->crtc[c];
-
- if (crtc->enabled && !crtc->cursor_argb)
- {
- if (crtc->funcs->load_cursor_image)
- crtc->funcs->set_cursor_colors (crtc, bg, fg);
- else if (bits)
- xf86_crtc_convert_cursor_to_argb (crtc, bits);
- }
- }
-}
-
-static void
-xf86_crtc_hide_cursor (xf86CrtcPtr crtc)
-{
- if (crtc->cursor_shown)
- {
- crtc->funcs->hide_cursor (crtc);
- crtc->cursor_shown = FALSE;
- }
-}
-
-void
-xf86_hide_cursors (ScrnInfoPtr scrn)
-{
- xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
- int c;
-
- xf86_config->cursor_on = FALSE;
- for (c = 0; c < xf86_config->num_crtc; c++)
- {
- xf86CrtcPtr crtc = xf86_config->crtc[c];
-
- if (crtc->enabled)
- xf86_crtc_hide_cursor (crtc);
- }
-}
-
-static void
-xf86_crtc_show_cursor (xf86CrtcPtr crtc)
-{
- if (!crtc->cursor_shown && crtc->cursor_in_range)
- {
- crtc->funcs->show_cursor (crtc);
- crtc->cursor_shown = TRUE;
- }
-}
-
-void
-xf86_show_cursors (ScrnInfoPtr scrn)
-{
- xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
- int c;
-
- xf86_config->cursor_on = TRUE;
- for (c = 0; c < xf86_config->num_crtc; c++)
- {
- xf86CrtcPtr crtc = xf86_config->crtc[c];
-
- if (crtc->enabled)
- xf86_crtc_show_cursor (crtc);
- }
-}
-
-static void
-xf86_crtc_set_cursor_position (xf86CrtcPtr crtc, int x, int y)
-{
- ScrnInfoPtr scrn = crtc->scrn;
- xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
- xf86CursorInfoPtr cursor_info = xf86_config->cursor_info;
- DisplayModePtr mode = &crtc->mode;
- Bool in_range;
- int dx, dy;
-
- /*
- * Transform position of cursor on screen
- */
- if (crtc->transform_in_use)
- {
- ScreenPtr screen = scrn->pScreen;
- xf86CursorScreenPtr ScreenPriv =
- (xf86CursorScreenPtr)dixLookupPrivate(&screen->devPrivates,
- xf86CursorScreenKey);
- struct pict_f_vector v;
-
- v.v[0] = x + ScreenPriv->HotX; v.v[1] = y + ScreenPriv->HotY; v.v[2] = 1;
- pixman_f_transform_point (&crtc->f_framebuffer_to_crtc, &v);
- x = floor (v.v[0] + 0.5);
- y = floor (v.v[1] + 0.5);
- /*
- * Transform position of cursor upper left corner
- */
- xf86_crtc_rotate_coord_back (crtc->rotation,
- cursor_info->MaxWidth,
- cursor_info->MaxHeight,
- ScreenPriv->HotX, ScreenPriv->HotY, &dx, &dy);
- x -= dx;
- y -= dy;
- }
- else
- {
- x -= crtc->x;
- y -= crtc->y;
- }
-
- /*
- * Disable the cursor when it is outside the viewport
- */
- in_range = TRUE;
- if (x >= mode->HDisplay || y >= mode->VDisplay ||
- x <= -cursor_info->MaxWidth || y <= -cursor_info->MaxHeight)
- {
- in_range = FALSE;
- x = 0;
- y = 0;
- }
-
- crtc->cursor_in_range = in_range;
-
- if (in_range)
- {
- crtc->funcs->set_cursor_position (crtc, x, y);
- xf86_crtc_show_cursor (crtc);
- }
- else
- xf86_crtc_hide_cursor (crtc);
-}
-
-static void
-xf86_set_cursor_position (ScrnInfoPtr scrn, int x, int y)
-{
- xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
- int c;
-
- /* undo what xf86HWCurs did to the coordinates */
- x += scrn->frameX0;
- y += scrn->frameY0;
- for (c = 0; c < xf86_config->num_crtc; c++)
- {
- xf86CrtcPtr crtc = xf86_config->crtc[c];
-
- if (crtc->enabled)
- xf86_crtc_set_cursor_position (crtc, x, y);
- }
-}
-
-/*
- * Load a two-color cursor into a crtc, performing rotation as needed
- */
-static void
-xf86_crtc_load_cursor_image (xf86CrtcPtr crtc, CARD8 *src)
-{
- ScrnInfoPtr scrn = crtc->scrn;
- xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
- xf86CursorInfoPtr cursor_info = xf86_config->cursor_info;
- CARD8 *cursor_image;
-
-#ifdef ARGB_CURSOR
- crtc->cursor_argb = FALSE;
-#endif
-
- if (crtc->rotation == RR_Rotate_0)
- cursor_image = src;
- else
- {
- int x, y;
- int xin, yin;
- int stride = cursor_info->MaxWidth >> 2;
- int flags = cursor_info->Flags;
-
- cursor_image = xf86_config->cursor_image;
- memset(cursor_image, 0, cursor_info->MaxHeight * stride);
-
- for (y = 0; y < cursor_info->MaxHeight; y++)
- for (x = 0; x < cursor_info->MaxWidth; x++)
- {
- xf86_crtc_rotate_coord (crtc->rotation,
- cursor_info->MaxWidth,
- cursor_info->MaxHeight,
- x, y, &xin, &yin);
- if (get_bit(src, stride, flags, xin, yin, FALSE))
- set_bit(cursor_image, stride, flags, x, y, FALSE);
- if (get_bit(src, stride, flags, xin, yin, TRUE))
- set_bit(cursor_image, stride, flags, x, y, TRUE);
- }
- }
- crtc->funcs->load_cursor_image (crtc, cursor_image);
-}
-
-/*
- * Load a cursor image into all active CRTCs
- */
-static void
-xf86_load_cursor_image (ScrnInfoPtr scrn, unsigned char *src)
-{
- 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)
- {
- if (crtc->funcs->load_cursor_image)
- xf86_crtc_load_cursor_image (crtc, src);
- else if (crtc->funcs->load_cursor_argb)
- xf86_crtc_convert_cursor_to_argb (crtc, src);
- }
- }
-}
-
-static Bool
-xf86_use_hw_cursor (ScreenPtr screen, CursorPtr cursor)
-{
- ScrnInfoPtr scrn = xf86Screens[screen->myNum];
- xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
- xf86CursorInfoPtr cursor_info = xf86_config->cursor_info;
-
- ++cursor->refcnt;
- if (xf86_config->cursor)
- FreeCursor (xf86_config->cursor, None);
- xf86_config->cursor = cursor;
-
- if (cursor->bits->width > cursor_info->MaxWidth ||
- cursor->bits->height> cursor_info->MaxHeight)
- 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;
-
- ++cursor->refcnt;
- 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;
-
- 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;
- 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->isUp)
- 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)
- {
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
- void *src = dixLookupPrivate(&cursor->devPrivates, CursorScreenKey(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)(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 = 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;
- }
-}
+/*
+ * Copyright © 2007 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#else
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#endif
+
+#include <stddef.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "xf86.h"
+#include "xf86DDC.h"
+#include "xf86Crtc.h"
+#include "xf86Modes.h"
+#include "xf86RandR12.h"
+#include "xf86CursorPriv.h"
+#include "X11/extensions/render.h"
+#include "X11/extensions/dpmsconst.h"
+#include "X11/Xatom.h"
+#include "picturestr.h"
+#include "cursorstr.h"
+#include "inputstr.h"
+
+/*
+ * Given a screen coordinate, rotate back to a cursor source coordinate
+ */
+static void
+xf86_crtc_rotate_coord (Rotation rotation,
+ int width,
+ int height,
+ int x_dst,
+ int y_dst,
+ int *x_src,
+ int *y_src)
+{
+ int t;
+
+ switch (rotation & 0xf) {
+ case RR_Rotate_0:
+ break;
+ case RR_Rotate_90:
+ t = x_dst;
+ x_dst = height - y_dst - 1;
+ y_dst = t;
+ break;
+ case RR_Rotate_180:
+ x_dst = width - x_dst - 1;
+ y_dst = height - y_dst - 1;
+ break;
+ case RR_Rotate_270:
+ t = x_dst;
+ x_dst = y_dst;
+ y_dst = width - t - 1;
+ break;
+ }
+ if (rotation & RR_Reflect_X)
+ x_dst = width - x_dst - 1;
+ if (rotation & RR_Reflect_Y)
+ y_dst = height - y_dst - 1;
+ *x_src = x_dst;
+ *y_src = y_dst;
+}
+
+/*
+ * Given a cursor source coordinate, rotate to a screen coordinate
+ */
+static void
+xf86_crtc_rotate_coord_back (Rotation rotation,
+ int width,
+ int height,
+ int x_dst,
+ int y_dst,
+ int *x_src,
+ int *y_src)
+{
+ int t;
+
+ if (rotation & RR_Reflect_X)
+ x_dst = width - x_dst - 1;
+ if (rotation & RR_Reflect_Y)
+ y_dst = height - y_dst - 1;
+
+ switch (rotation & 0xf) {
+ case RR_Rotate_0:
+ break;
+ case RR_Rotate_90:
+ t = x_dst;
+ x_dst = y_dst;
+ y_dst = width - t - 1;
+ break;
+ case RR_Rotate_180:
+ x_dst = width - x_dst - 1;
+ y_dst = height - y_dst - 1;
+ break;
+ case RR_Rotate_270:
+ t = x_dst;
+ x_dst = height - y_dst - 1;
+ y_dst = t;
+ break;
+ }
+ *x_src = x_dst;
+ *y_src = y_dst;
+}
+
+/*
+ * Convert an x coordinate to a position within the cursor bitmap
+ */
+static int
+cursor_bitpos (int flags, int x, Bool mask)
+{
+ if (flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK)
+ mask = !mask;
+ if (flags & HARDWARE_CURSOR_NIBBLE_SWAPPED)
+ x = (x & ~3) | (3 - (x & 3));
+ if (((flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST) == 0) ==
+ (X_BYTE_ORDER == X_BIG_ENDIAN))
+ x = (x & ~7) | (7 - (x & 7));
+ if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1)
+ x = (x << 1) + mask;
+ else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8)
+ x = ((x & ~7) << 1) | (mask << 3) | (x & 7);
+ else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16)
+ x = ((x & ~15) << 1) | (mask << 4) | (x & 15);
+ else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32)
+ x = ((x & ~31) << 1) | (mask << 5) | (x & 31);
+ else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64)
+ x = ((x & ~63) << 1) | (mask << 6) | (x & 63);
+ return x;
+}
+
+/*
+ * Fetch one bit from a cursor bitmap
+ */
+static CARD8
+get_bit (CARD8 *image, int stride, int flags, int x, int y, Bool mask)
+{
+ x = cursor_bitpos (flags, x, mask);
+ image += y * stride;
+ return (image[(x >> 3)] >> (x & 7)) & 1;
+}
+
+/*
+ * Set one bit in a cursor bitmap
+ */
+static void
+set_bit (CARD8 *image, int stride, int flags, int x, int y, Bool mask)
+{
+ x = cursor_bitpos (flags, x, mask);
+ image += y * stride;
+ image[(x >> 3)] |= 1 << (x & 7);
+}
+
+/*
+ * Load a two color cursor into a driver that supports only ARGB cursors
+ */
+static void
+xf86_crtc_convert_cursor_to_argb (xf86CrtcPtr crtc, unsigned char *src)
+{
+ 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;
+ int x, y;
+ int xin, yin;
+ int stride = cursor_info->MaxWidth >> 2;
+ int flags = cursor_info->Flags;
+ CARD32 bits;
+
+#ifdef ARGB_CURSOR
+ crtc->cursor_argb = FALSE;
+#endif
+
+ for (y = 0; y < cursor_info->MaxHeight; y++)
+ for (x = 0; x < cursor_info->MaxWidth; x++)
+ {
+ xf86_crtc_rotate_coord (crtc->rotation,
+ cursor_info->MaxWidth,
+ cursor_info->MaxHeight,
+ x, y, &xin, &yin);
+ if (get_bit (src, stride, flags, xin, yin, TRUE) ==
+ ((flags & HARDWARE_CURSOR_INVERT_MASK) == 0))
+ {
+ if (get_bit (src, stride, flags, xin, yin, FALSE))
+ bits = xf86_config->cursor_fg;
+ else
+ bits = xf86_config->cursor_bg;
+ }
+ else
+ bits = 0;
+ cursor_image[y * cursor_info->MaxWidth + x] = bits;
+ }
+ crtc->funcs->load_cursor_argb (crtc, cursor_image);
+}
+
+/*
+ * Set the colors for a two-color cursor (ignore for ARGB cursors)
+ */
+static void
+xf86_set_cursor_colors (ScrnInfoPtr scrn, int bg, int fg)
+{
+ ScreenPtr screen = scrn->pScreen;
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ CursorPtr cursor = xf86_config->cursor;
+ int c;
+ CARD8 *bits = cursor ?
+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
+ dixLookupPrivate(&cursor->devPrivates, CursorScreenKey(screen))
+#else
+ cursor->devPriv[screen->myNum]
+#endif
+ : NULL;
+
+ /* Save ARGB versions of these colors */
+ xf86_config->cursor_fg = (CARD32) fg | 0xff000000;
+ xf86_config->cursor_bg = (CARD32) bg | 0xff000000;
+
+ for (c = 0; c < xf86_config->num_crtc; c++)
+ {
+ xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+ if (crtc->enabled && !crtc->cursor_argb)
+ {
+ if (crtc->funcs->load_cursor_image)
+ crtc->funcs->set_cursor_colors (crtc, bg, fg);
+ else if (bits)
+ xf86_crtc_convert_cursor_to_argb (crtc, bits);
+ }
+ }
+}
+
+static void
+xf86_crtc_hide_cursor (xf86CrtcPtr crtc)
+{
+ if (crtc->cursor_shown)
+ {
+ crtc->funcs->hide_cursor (crtc);
+ crtc->cursor_shown = FALSE;
+ }
+}
+
+void
+xf86_hide_cursors (ScrnInfoPtr scrn)
+{
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ int c;
+
+ xf86_config->cursor_on = FALSE;
+ for (c = 0; c < xf86_config->num_crtc; c++)
+ {
+ xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+ if (crtc->enabled)
+ xf86_crtc_hide_cursor (crtc);
+ }
+}
+
+static void
+xf86_crtc_show_cursor (xf86CrtcPtr crtc)
+{
+ if (!crtc->cursor_shown && crtc->cursor_in_range)
+ {
+ crtc->funcs->show_cursor (crtc);
+ crtc->cursor_shown = TRUE;
+ }
+}
+
+void
+xf86_show_cursors (ScrnInfoPtr scrn)
+{
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ int c;
+
+ xf86_config->cursor_on = TRUE;
+ for (c = 0; c < xf86_config->num_crtc; c++)
+ {
+ xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+ if (crtc->enabled)
+ xf86_crtc_show_cursor (crtc);
+ }
+}
+
+static void
+xf86_crtc_set_cursor_position (xf86CrtcPtr crtc, int x, int y)
+{
+ ScrnInfoPtr scrn = crtc->scrn;
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ xf86CursorInfoPtr cursor_info = xf86_config->cursor_info;
+ DisplayModePtr mode = &crtc->mode;
+ Bool in_range;
+ int dx, dy;
+
+ /*
+ * Transform position of cursor on screen
+ */
+ if (crtc->transform_in_use)
+ {
+ ScreenPtr screen = scrn->pScreen;
+ xf86CursorScreenPtr ScreenPriv =
+ (xf86CursorScreenPtr)dixLookupPrivate(&screen->devPrivates,
+ xf86CursorScreenKey);
+ struct pict_f_vector v;
+
+ v.v[0] = x + ScreenPriv->HotX; v.v[1] = y + ScreenPriv->HotY; v.v[2] = 1;
+ pixman_f_transform_point (&crtc->f_framebuffer_to_crtc, &v);
+ x = floor (v.v[0] + 0.5);
+ y = floor (v.v[1] + 0.5);
+ /*
+ * Transform position of cursor upper left corner
+ */
+ xf86_crtc_rotate_coord_back (crtc->rotation,
+ cursor_info->MaxWidth,
+ cursor_info->MaxHeight,
+ ScreenPriv->HotX, ScreenPriv->HotY, &dx, &dy);
+ x -= dx;
+ y -= dy;
+ }
+ else
+ {
+ x -= crtc->x;
+ y -= crtc->y;
+ }
+
+ /*
+ * Disable the cursor when it is outside the viewport
+ */
+ in_range = TRUE;
+ if (x >= mode->HDisplay || y >= mode->VDisplay ||
+ x <= -cursor_info->MaxWidth || y <= -cursor_info->MaxHeight)
+ {
+ in_range = FALSE;
+ x = 0;
+ y = 0;
+ }
+
+ crtc->cursor_in_range = in_range;
+
+ if (in_range)
+ {
+ crtc->funcs->set_cursor_position (crtc, x, y);
+ xf86_crtc_show_cursor (crtc);
+ }
+ else
+ xf86_crtc_hide_cursor (crtc);
+}
+
+static void
+xf86_set_cursor_position (ScrnInfoPtr scrn, int x, int y)
+{
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ int c;
+
+ /* undo what xf86HWCurs did to the coordinates */
+ x += scrn->frameX0;
+ y += scrn->frameY0;
+ for (c = 0; c < xf86_config->num_crtc; c++)
+ {
+ xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+ if (crtc->enabled)
+ xf86_crtc_set_cursor_position (crtc, x, y);
+ }
+}
+
+/*
+ * Load a two-color cursor into a crtc, performing rotation as needed
+ */
+static void
+xf86_crtc_load_cursor_image (xf86CrtcPtr crtc, CARD8 *src)
+{
+ ScrnInfoPtr scrn = crtc->scrn;
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ xf86CursorInfoPtr cursor_info = xf86_config->cursor_info;
+ CARD8 *cursor_image;
+
+#ifdef ARGB_CURSOR
+ crtc->cursor_argb = FALSE;
+#endif
+
+ if (crtc->rotation == RR_Rotate_0)
+ cursor_image = src;
+ else
+ {
+ int x, y;
+ int xin, yin;
+ int stride = cursor_info->MaxWidth >> 2;
+ int flags = cursor_info->Flags;
+
+ cursor_image = xf86_config->cursor_image;
+ memset(cursor_image, 0, cursor_info->MaxHeight * stride);
+
+ for (y = 0; y < cursor_info->MaxHeight; y++)
+ for (x = 0; x < cursor_info->MaxWidth; x++)
+ {
+ xf86_crtc_rotate_coord (crtc->rotation,
+ cursor_info->MaxWidth,
+ cursor_info->MaxHeight,
+ x, y, &xin, &yin);
+ if (get_bit(src, stride, flags, xin, yin, FALSE))
+ set_bit(cursor_image, stride, flags, x, y, FALSE);
+ if (get_bit(src, stride, flags, xin, yin, TRUE))
+ set_bit(cursor_image, stride, flags, x, y, TRUE);
+ }
+ }
+ crtc->funcs->load_cursor_image (crtc, cursor_image);
+}
+
+/*
+ * Load a cursor image into all active CRTCs
+ */
+static void
+xf86_load_cursor_image (ScrnInfoPtr scrn, unsigned char *src)
+{
+ 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)
+ {
+ if (crtc->funcs->load_cursor_image)
+ xf86_crtc_load_cursor_image (crtc, src);
+ else if (crtc->funcs->load_cursor_argb)
+ xf86_crtc_convert_cursor_to_argb (crtc, src);
+ }
+ }
+}
+
+static Bool
+xf86_use_hw_cursor (ScreenPtr screen, CursorPtr cursor)
+{
+ ScrnInfoPtr scrn = xf86Screens[screen->myNum];
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ xf86CursorInfoPtr cursor_info = xf86_config->cursor_info;
+
+ ++cursor->refcnt;
+ if (xf86_config->cursor)
+ FreeCursor (xf86_config->cursor, None);
+ xf86_config->cursor = cursor;
+
+ if (cursor->bits->width > cursor_info->MaxWidth ||
+ cursor->bits->height> cursor_info->MaxHeight)
+ 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;
+
+ ++cursor->refcnt;
+ 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;
+
+ 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;
+ 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 = 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)
+ {
+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
+ void *src = dixLookupPrivate(&cursor->devPrivates, CursorScreenKey(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)(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 = 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;
+ }
+}