076d070e18
DRI uses a non-screen block/wakeup handler which will be executed after the screen block handler finishes. To ensure that the rotation block handler is executed under the DRI lock, dynamically wrap the screen block handler for rotation.
471 lines
12 KiB
C
471 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 Bool
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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 FALSE;
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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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return TRUE;
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}
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static void
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xf86RotateBlockHandler(int screenNum, pointer blockData,
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pointer pTimeout, pointer pReadmask)
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{
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ScreenPtr pScreen = screenInfo.screens[screenNum];
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ScrnInfoPtr pScrn = xf86Screens[screenNum];
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xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
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pScreen->BlockHandler = xf86_config->BlockHandler;
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(*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
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if (xf86RotateRedisplay(pScreen))
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{
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/* Re-wrap if rotation is still happening */
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xf86_config->BlockHandler = pScreen->BlockHandler;
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pScreen->BlockHandler = xf86RotateBlockHandler;
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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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}
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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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/* Wrap block handler */
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xf86_config->BlockHandler = pScreen->BlockHandler;
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pScreen->BlockHandler = xf86RotateBlockHandler;
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}
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if (0)
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{
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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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