SourceValidate is used exclusively by the software cursor code to pull the
cursor off of the screen before using the screen as a source operand. This
eliminates the software cursor from the frame buffer while painting the
rotated image though. Disabling this function by temporarily setting the
screen function pointer to NULL causes the cursor image to be captured.
(cherry picked from commit 05e1c45ade
)
477 lines
12 KiB
C
477 lines
12 KiB
C
/*
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* Copyright © 2006 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 "fb.h"
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#include "windowstr.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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/* borrowed from composite extension, move to Render and publish? */
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static VisualPtr
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compGetWindowVisual (WindowPtr pWin)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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VisualID vid = wVisual (pWin);
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int i;
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for (i = 0; i < pScreen->numVisuals; i++)
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if (pScreen->visuals[i].vid == vid)
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return &pScreen->visuals[i];
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return 0;
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}
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static PictFormatPtr
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compWindowFormat (WindowPtr pWin)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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return PictureMatchVisual (pScreen, pWin->drawable.depth,
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compGetWindowVisual (pWin));
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}
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static void
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xf86TranslateBox (BoxPtr b, int dx, int dy)
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{
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b->x1 += dx;
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b->y1 += dy;
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b->x2 += dx;
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b->y2 += dy;
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}
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static void
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xf86TransformBox (BoxPtr dst, BoxPtr src, Rotation rotation,
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int xoff, int yoff,
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int dest_width, int dest_height)
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{
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BoxRec stmp = *src;
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xf86TranslateBox (&stmp, -xoff, -yoff);
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switch (rotation & 0xf) {
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default:
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case RR_Rotate_0:
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*dst = stmp;
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break;
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case RR_Rotate_90:
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dst->x1 = stmp.y1;
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dst->y1 = dest_height - stmp.x2;
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dst->x2 = stmp.y2;
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dst->y2 = dest_height - stmp.x1;
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break;
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case RR_Rotate_180:
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dst->x1 = dest_width - stmp.x2;
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dst->y1 = dest_height - stmp.y2;
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dst->x2 = dest_width - stmp.x1;
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dst->y2 = dest_height - stmp.y1;
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break;
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case RR_Rotate_270:
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dst->x1 = dest_width - stmp.y2;
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dst->y1 = stmp.x1;
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dst->y2 = stmp.x2;
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dst->x2 = dest_width - stmp.y1;
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break;
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}
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if (rotation & RR_Reflect_X) {
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int x1 = dst->x1;
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dst->x1 = dest_width - dst->x2;
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dst->x2 = dest_width - x1;
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}
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if (rotation & RR_Reflect_Y) {
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int y1 = dst->y1;
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dst->y1 = dest_height - dst->y2;
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dst->y2 = dest_height - y1;
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}
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}
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static void
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xf86RotateCrtcRedisplay (xf86CrtcPtr crtc, RegionPtr region)
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{
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ScrnInfoPtr scrn = crtc->scrn;
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ScreenPtr screen = scrn->pScreen;
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WindowPtr root = WindowTable[screen->myNum];
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PixmapPtr dst_pixmap = crtc->rotatedPixmap;
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PictFormatPtr format = compWindowFormat (WindowTable[screen->myNum]);
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int error;
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PicturePtr src, dst;
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PictTransform transform;
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int n = REGION_NUM_RECTS(region);
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BoxPtr b = REGION_RECTS(region);
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XID include_inferiors = IncludeInferiors;
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src = CreatePicture (None,
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&root->drawable,
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format,
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CPSubwindowMode,
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&include_inferiors,
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serverClient,
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&error);
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if (!src)
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return;
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dst = CreatePicture (None,
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&dst_pixmap->drawable,
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format,
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0L,
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NULL,
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serverClient,
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&error);
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if (!dst)
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return;
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memset (&transform, '\0', sizeof (transform));
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transform.matrix[2][2] = IntToxFixed(1);
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transform.matrix[0][2] = IntToxFixed(crtc->x);
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transform.matrix[1][2] = IntToxFixed(crtc->y);
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switch (crtc->rotation & 0xf) {
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default:
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case RR_Rotate_0:
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transform.matrix[0][0] = IntToxFixed(1);
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transform.matrix[1][1] = IntToxFixed(1);
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break;
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case RR_Rotate_90:
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transform.matrix[0][1] = IntToxFixed(-1);
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transform.matrix[1][0] = IntToxFixed(1);
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transform.matrix[0][2] += IntToxFixed(crtc->mode.VDisplay);
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break;
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case RR_Rotate_180:
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transform.matrix[0][0] = IntToxFixed(-1);
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transform.matrix[1][1] = IntToxFixed(-1);
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transform.matrix[0][2] += IntToxFixed(crtc->mode.HDisplay);
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transform.matrix[1][2] += IntToxFixed(crtc->mode.VDisplay);
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break;
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case RR_Rotate_270:
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transform.matrix[0][1] = IntToxFixed(1);
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transform.matrix[1][0] = IntToxFixed(-1);
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transform.matrix[1][2] += IntToxFixed(crtc->mode.HDisplay);
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break;
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}
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/* handle reflection */
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if (crtc->rotation & RR_Reflect_X)
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{
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/* XXX figure this out */
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}
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if (crtc->rotation & RR_Reflect_Y)
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{
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/* XXX figure this out too */
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}
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error = SetPictureTransform (src, &transform);
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if (error)
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return;
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while (n--)
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{
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BoxRec dst_box;
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xf86TransformBox (&dst_box, b, crtc->rotation,
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crtc->x, crtc->y,
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crtc->mode.HDisplay, crtc->mode.VDisplay);
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CompositePicture (PictOpSrc,
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src, NULL, dst,
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dst_box.x1, dst_box.y1, 0, 0, dst_box.x1, dst_box.y1,
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dst_box.x2 - dst_box.x1,
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dst_box.y2 - dst_box.y1);
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b++;
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}
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FreePicture (src, None);
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FreePicture (dst, None);
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}
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static void
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xf86CrtcDamageShadow (xf86CrtcPtr crtc)
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{
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ScrnInfoPtr pScrn = crtc->scrn;
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BoxRec damage_box;
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RegionRec damage_region;
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ScreenPtr pScreen = pScrn->pScreen;
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damage_box.x1 = crtc->x;
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damage_box.x2 = crtc->x + xf86ModeWidth (&crtc->mode, crtc->rotation);
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damage_box.y1 = crtc->y;
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damage_box.y2 = crtc->y + xf86ModeHeight (&crtc->mode, crtc->rotation);
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REGION_INIT (pScreen, &damage_region, &damage_box, 1);
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DamageDamageRegion (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
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&damage_region);
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REGION_UNINIT (pScreen, &damage_region);
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}
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static void
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xf86RotatePrepare (ScreenPtr pScreen)
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{
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ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
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xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
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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->rotatedData && !crtc->rotatedPixmap)
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{
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crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,
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crtc->rotatedData,
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crtc->mode.HDisplay,
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crtc->mode.VDisplay);
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if (!xf86_config->rotation_damage_registered)
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{
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/* Hook damage to screen pixmap */
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DamageRegister (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
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xf86_config->rotation_damage);
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xf86_config->rotation_damage_registered = TRUE;
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}
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xf86CrtcDamageShadow (crtc);
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}
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}
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}
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static void
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xf86RotateRedisplay(ScreenPtr pScreen)
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{
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ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
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xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
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DamagePtr damage = xf86_config->rotation_damage;
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RegionPtr region;
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if (!damage)
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return;
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xf86RotatePrepare (pScreen);
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region = DamageRegion(damage);
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if (REGION_NOTEMPTY(pScreen, region))
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{
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int c;
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SourceValidateProcPtr SourceValidate;
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/*
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* SourceValidate is used by the software cursor code
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* to pull the cursor off of the screen when reading
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* bits from the frame buffer. Bypassing this function
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* leaves the software cursor in place
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*/
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SourceValidate = pScreen->SourceValidate;
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pScreen->SourceValidate = NULL;
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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->rotation != RR_Rotate_0 && crtc->enabled)
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{
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BoxRec box;
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RegionRec crtc_damage;
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/* compute portion of damage that overlaps crtc */
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box.x1 = crtc->x;
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box.x2 = crtc->x + xf86ModeWidth (&crtc->mode, crtc->rotation);
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box.y1 = crtc->y;
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box.y2 = crtc->y + xf86ModeHeight (&crtc->mode, crtc->rotation);
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REGION_INIT(pScreen, &crtc_damage, &box, 1);
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REGION_INTERSECT (pScreen, &crtc_damage, &crtc_damage, region);
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/* update damaged region */
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if (REGION_NOTEMPTY(pScreen, &crtc_damage))
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xf86RotateCrtcRedisplay (crtc, &crtc_damage);
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REGION_UNINIT (pScreen, &crtc_damage);
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}
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}
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pScreen->SourceValidate = SourceValidate;
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DamageEmpty(damage);
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}
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}
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static void
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xf86RotateBlockHandler(pointer data, OSTimePtr pTimeout, pointer pRead)
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{
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ScreenPtr pScreen = (ScreenPtr) data;
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xf86RotateRedisplay(pScreen);
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}
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static void
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xf86RotateWakeupHandler(pointer data, int i, pointer LastSelectMask)
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{
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}
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static void
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xf86RotateDestroy (xf86CrtcPtr crtc)
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{
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ScrnInfoPtr pScrn = crtc->scrn;
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ScreenPtr pScreen = pScrn->pScreen;
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xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
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int c;
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/* Free memory from rotation */
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if (crtc->rotatedPixmap || crtc->rotatedData)
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{
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crtc->funcs->shadow_destroy (crtc, crtc->rotatedPixmap, crtc->rotatedData);
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crtc->rotatedPixmap = NULL;
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crtc->rotatedData = NULL;
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}
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for (c = 0; c < xf86_config->num_crtc; c++)
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if (xf86_config->crtc[c]->rotatedPixmap ||
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xf86_config->crtc[c]->rotatedData)
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return;
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/*
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* Clean up damage structures when no crtcs are rotated
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*/
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if (xf86_config->rotation_damage)
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{
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/* Free damage structure */
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if (xf86_config->rotation_damage_registered)
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{
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DamageUnregister (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
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xf86_config->rotation_damage);
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xf86_config->rotation_damage_registered = FALSE;
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}
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DamageDestroy (xf86_config->rotation_damage);
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xf86_config->rotation_damage = NULL;
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/* Free block/wakeup handler */
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RemoveBlockAndWakeupHandlers (xf86RotateBlockHandler,
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xf86RotateWakeupHandler,
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(pointer) pScreen);
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}
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}
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void
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xf86RotateCloseScreen (ScreenPtr screen)
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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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int c;
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for (c = 0; c < xf86_config->num_crtc; c++)
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xf86RotateDestroy (xf86_config->crtc[c]);
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}
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Bool
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xf86CrtcRotate (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation)
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{
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ScrnInfoPtr pScrn = crtc->scrn;
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xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
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ScreenPtr pScreen = pScrn->pScreen;
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if (rotation == RR_Rotate_0)
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{
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xf86RotateDestroy (crtc);
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}
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else
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{
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/*
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* these are the size of the shadow pixmap, which
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* matches the mode, not the pre-rotated copy in the
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* frame buffer
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*/
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int width = mode->HDisplay;
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int height = mode->VDisplay;
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void *shadowData = crtc->rotatedData;
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PixmapPtr shadow = crtc->rotatedPixmap;
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int old_width = shadow ? shadow->drawable.width : 0;
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int old_height = shadow ? shadow->drawable.height : 0;
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/* Allocate memory for rotation */
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if (old_width != width || old_height != height)
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{
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if (shadow || shadowData)
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{
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crtc->funcs->shadow_destroy (crtc, shadow, shadowData);
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crtc->rotatedPixmap = NULL;
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crtc->rotatedData = NULL;
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}
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shadowData = crtc->funcs->shadow_allocate (crtc, width, height);
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if (!shadowData)
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goto bail1;
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crtc->rotatedData = shadowData;
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/* shadow will be damaged in xf86RotatePrepare */
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}
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else
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{
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/* mark shadowed area as damaged so it will be repainted */
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xf86CrtcDamageShadow (crtc);
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}
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if (!xf86_config->rotation_damage)
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{
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/* Create damage structure */
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xf86_config->rotation_damage = DamageCreate (NULL, NULL,
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DamageReportNone,
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TRUE, pScreen, pScreen);
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if (!xf86_config->rotation_damage)
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goto bail2;
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/* Assign block/wakeup handler */
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if (!RegisterBlockAndWakeupHandlers (xf86RotateBlockHandler,
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xf86RotateWakeupHandler,
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(pointer) pScreen))
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{
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goto bail3;
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}
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}
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if (0)
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{
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bail3:
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DamageDestroy (xf86_config->rotation_damage);
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xf86_config->rotation_damage = NULL;
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bail2:
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if (shadow || shadowData)
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{
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crtc->funcs->shadow_destroy (crtc, shadow, shadowData);
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crtc->rotatedPixmap = NULL;
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crtc->rotatedData = NULL;
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}
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bail1:
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if (old_width && old_height)
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crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,
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NULL,
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old_width,
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old_height);
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return FALSE;
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}
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}
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/* All done */
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return TRUE;
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}
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