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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