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xorg-x11-server
u_modesetting-Fix-dirty-updates-for-sw-rotation...
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File u_modesetting-Fix-dirty-updates-for-sw-rotation.patch of Package xorg-x11-server
From 7d2802f13eecb38babeeb54ceae978a409b5c5d4 Mon Sep 17 00:00:00 2001 From: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Date: Wed, 9 Jun 2021 20:58:59 +0200 Subject: [PATCH] modesetting: Fix dirty updates for sw rotation Patch-Mainline: To be upstreamed References: bsc#1182955 Rotation is broken for all drm drivers not providing hardware rotation support. Drivers that give direct access to vram and not needing dirty updates still work but only by accident. The problem is caused by modesetting not sending the correct fb_id to drmModeDirtyFB() and passing the damage rects in the rotated state and not as the crtc expects them. This patch takes care of both problems. Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de> --- hw/xfree86/drivers/modesetting/driver.c | 81 ++++++++++++++----- .../drivers/modesetting/drmmode_display.c | 2 +- .../drivers/modesetting/drmmode_display.h | 2 + 3 files changed, 63 insertions(+), 22 deletions(-) Index: xorg-server-21.1.0/hw/xfree86/drivers/modesetting/driver.c =================================================================== --- xorg-server-21.1.0.orig/hw/xfree86/drivers/modesetting/driver.c +++ xorg-server-21.1.0/hw/xfree86/drivers/modesetting/driver.c @@ -515,9 +515,41 @@ GetRec(ScrnInfoPtr pScrn) return TRUE; } +static void +rotate_clip(PixmapPtr pixmap, BoxPtr rect, drmModeClip *clip, Rotation rotation) +{ + int w = pixmap->drawable.width; + int h = pixmap->drawable.height; + + if (rotation == RR_Rotate_90) { + /* Rotate 90 degrees counter clockwise */ + clip->x1 = rect->y1; + clip->x2 = rect->y2; + clip->y1 = w - rect->x2; + clip->y2 = w - rect->x1; + } else if (rotation == RR_Rotate_180) { + /* Rotate 180 degrees */ + clip->x1 = w - rect->x2; + clip->x2 = w - rect->x1; + clip->y1 = h - rect->y2; + clip->y2 = h - rect->y1; + } else if (rotation == RR_Rotate_270) { + /* Rotate 90 degrees clockwise */ + clip->x1 = h - rect->y2; + clip->x2 = h - rect->y1; + clip->y1 = rect->x1; + clip->y2 = rect->x2; + } else { + clip->x1 = rect->x1; + clip->x2 = rect->x2; + clip->y1 = rect->y1; + clip->y2 = rect->y2; + } +} + static int -dispatch_dirty_region(ScrnInfoPtr scrn, - PixmapPtr pixmap, DamagePtr damage, int fb_id) +dispatch_dirty_region(ScrnInfoPtr scrn, xf86CrtcPtr crtc, + PixmapPtr pixmap, DamagePtr damage, int fb_id) { modesettingPtr ms = modesettingPTR(scrn); RegionPtr dirty = DamageRegion(damage); @@ -532,13 +564,9 @@ dispatch_dirty_region(ScrnInfoPtr scrn, if (!clip) return -ENOMEM; - /* XXX no need for copy? */ - for (i = 0; i < num_cliprects; i++, rect++) { - clip[i].x1 = rect->x1; - clip[i].y1 = rect->y1; - clip[i].x2 = rect->x2; - clip[i].y2 = rect->y2; - } + /* Rotate and copy rects into clips */ + for (i = 0; i < num_cliprects; i++, rect++) + rotate_clip(pixmap, rect, &clip[i], crtc->rotation); /* TODO query connector property to see if this is needed */ ret = drmModeDirtyFB(ms->fd, fb_id, clip, num_cliprects); @@ -561,20 +589,31 @@ static void dispatch_dirty(ScreenPtr pScreen) { ScrnInfoPtr scrn = xf86ScreenToScrn(pScreen); + xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); modesettingPtr ms = modesettingPTR(scrn); PixmapPtr pixmap = pScreen->GetScreenPixmap(pScreen); - int fb_id = ms->drmmode.fb_id; - int ret; + uint32_t fb_id; + int ret, c, x, y ; - ret = dispatch_dirty_region(scrn, pixmap, ms->damage, fb_id); - if (ret == -EINVAL || ret == -ENOSYS) { - ms->dirty_enabled = FALSE; - DamageUnregister(ms->damage); - DamageDestroy(ms->damage); - ms->damage = NULL; - xf86DrvMsg(scrn->scrnIndex, X_INFO, - "Disabling kernel dirty updates, not required.\n"); - return; + for (c = 0; c < xf86_config->num_crtc; c++) { + xf86CrtcPtr crtc = xf86_config->crtc[c]; + drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private; + + if (!drmmode_crtc) + continue; + + drmmode_crtc_get_fb_id(crtc, &fb_id, &x, &y); + + ret = dispatch_dirty_region(scrn, crtc, pixmap, ms->damage, fb_id); + if (ret == -EINVAL || ret == -ENOSYS) { + ms->dirty_enabled = FALSE; + DamageUnregister(ms->damage); + DamageDestroy(ms->damage); + ms->damage = NULL; + xf86DrvMsg(scrn->scrnIndex, X_INFO, + "Disabling kernel dirty updates, not required.\n"); + return; + } } } @@ -586,7 +625,7 @@ dispatch_dirty_pixmap(ScrnInfoPtr scrn, DamagePtr damage = ppriv->secondary_damage; int fb_id = ppriv->fb_id; - dispatch_dirty_region(scrn, ppix, damage, fb_id); + dispatch_dirty_region(scrn, crtc, ppix, damage, fb_id); } static void Index: xorg-server-21.1.0/hw/xfree86/drivers/modesetting/drmmode_display.c =================================================================== --- xorg-server-21.1.0.orig/hw/xfree86/drivers/modesetting/drmmode_display.c +++ xorg-server-21.1.0/hw/xfree86/drivers/modesetting/drmmode_display.c @@ -627,7 +627,7 @@ drmmode_crtc_can_test_mode(xf86CrtcPtr c return ms->atomic_modeset; } -static Bool +Bool drmmode_crtc_get_fb_id(xf86CrtcPtr crtc, uint32_t *fb_id, int *x, int *y) { drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private; Index: xorg-server-21.1.0/hw/xfree86/drivers/modesetting/drmmode_display.h =================================================================== --- xorg-server-21.1.0.orig/hw/xfree86/drivers/modesetting/drmmode_display.h +++ xorg-server-21.1.0/hw/xfree86/drivers/modesetting/drmmode_display.h @@ -311,6 +311,8 @@ void drmmode_copy_fb(ScrnInfoPtr pScrn, int drmmode_crtc_flip(xf86CrtcPtr crtc, uint32_t fb_id, uint32_t flags, void *data); +Bool drmmode_crtc_get_fb_id(xf86CrtcPtr crtc, uint32_t *fb_id, int *x, int *y); + void drmmode_set_dpms(ScrnInfoPtr scrn, int PowerManagementMode, int flags); void drmmode_crtc_set_vrr(xf86CrtcPtr crtc, Bool enabled);
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