From 1240532ba6033494d02f41f631965eaad1b49c47 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Wed, 10 Feb 2010 13:12:47 -0500
Subject: [PATCH] randr unify abi compat hack
---
hw/xfree86/loader/sdksyms.c | 3 +++
hw/xfree86/modes/xf86Crtc.c | 19 +++++++++++++++----
hw/xfree86/modes/xf86Crtc.h | 3 ++-
hw/xfree86/modes/xf86RandR12.c | 22 ++++++++++++++++++++++
4 files changed, 42 insertions(+), 5 deletions(-)
diff --git a/hw/xfree86/loader/sdksyms.c b/hw/xfree86/loader/sdksyms.c
index 61ed4b9..54307c6 100644
--- a/hw/xfree86/loader/sdksyms.c
+++ b/hw/xfree86/loader/sdksyms.c
@@ -454,6 +454,7 @@ _X_HIDDEN void *xorg_symbols[] = {
(void *) &Ones,
(void *) &globalSerialNumber,
(void *) &serverGeneration,
+ (void *) &omg_wtf_aborting,
(void *) &AddScreen,
(void *) &GetScratchPixmapHeader,
(void *) &FreeScratchPixmapHeader,
@@ -1506,6 +1507,8 @@ _X_HIDDEN void *xorg_symbols[] = {
(void *) &xf86DestroyCursorInfoRec,
(void *) &xf86ForceHWCursor,
(void *) &xf86CrtcConfigPrivateIndex,
+ (void *) &xf86GetPrimaryOutput,
+ (void *) &xf86GetPrimaryCrtc,
(void *) &xf86CrtcConfigInit,
(void *) &xf86CrtcSetSizeRange,
(void *) &xf86CrtcCreate,
diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index 906981b..544d62a 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -1809,6 +1809,8 @@ biggestMode(DisplayModePtr a, DisplayModePtr b)
*
* hilariously, this can get called before ->pScreen is filled in. that's
* way early in screen init, so we'll assume it just doesn't matter yet.
+ *
+ * for ABI compat with older drivers we also fill in ->compat_output. weep.
*/
xf86OutputPtr
xf86GetPrimaryOutput(ScrnInfoPtr scrn)
@@ -1820,21 +1822,30 @@ xf86GetPrimaryOutput(ScrnInfoPtr scrn)
rrScrPrivPtr rrScrPriv = rrGetScrPriv(scrn->pScreen);
/* defaults to NULL */
- if (rrScrPriv->primaryOutput)
- return rrScrPriv->primaryOutput->devPrivate;
+ if (rrScrPriv->primaryOutput) {
+ xf86OutputPtr ret = rrScrPriv->primaryOutput->devPrivate;
+ for (i = 0; i < config->num_output; i++)
+ if (config->output[i] == ret)
+ config->compat_output = i;
+ return ret;
+ }
}
for (i = 0; i < config->num_output; i++) {
xf86OutputPtr output = config->output[i];
- if (output->status == XF86OutputStatusConnected)
+ if (output->status == XF86OutputStatusConnected) {
+ config->compat_output = i;
return output;
+ }
}
/* desperation */
for (i = 0; i < config->num_output; i++) {
xf86OutputPtr output = config->output[i];
- if (output->status == XF86OutputStatusUnknown)
+ if (output->status == XF86OutputStatusUnknown) {
+ config->compat_output = i;
return output;
+ }
}
return NULL;
diff --git a/hw/xfree86/modes/xf86Crtc.h b/hw/xfree86/modes/xf86Crtc.h
index 39ba81d..b497df7 100644
--- a/hw/xfree86/modes/xf86Crtc.h
+++ b/hw/xfree86/modes/xf86Crtc.h
@@ -631,7 +631,8 @@ typedef void (*xf86_crtc_notify_proc_ptr) (ScreenPtr pScreen);
typedef struct _xf86CrtcConfig {
int num_output;
xf86OutputPtr *output;
- int unused;
+ /* ABI hack, sigh */
+ int compat_output;
int num_crtc;
xf86CrtcPtr *crtc;
diff --git a/hw/xfree86/modes/xf86RandR12.c b/hw/xfree86/modes/xf86RandR12.c
index 1510735..a470429 100644
--- a/hw/xfree86/modes/xf86RandR12.c
+++ b/hw/xfree86/modes/xf86RandR12.c
@@ -62,6 +62,7 @@ typedef struct _xf86RandR12Info {
* See https://bugs.freedesktop.org/show_bug.cgi?id=21554
*/
xf86EnterVTProc *orig_EnterVT;
+ xf86AdjustFrameProc *orig_AdjustFrame;
} XF86RandRInfoRec, *XF86RandRInfoPtr;
#ifdef RANDR_12_INTERFACE
@@ -1766,6 +1767,24 @@ xf86RandR12EnterVT (int screen_index, int flags)
return RRGetInfo (pScreen, TRUE); /* force a re-probe of outputs and notify clients about changes */
}
+/*
+ * gross ABI hack. need to ensure compat_output is current before calling
+ * down to driver AdjustFrame, which xf86GetPrimaryOutput does as a side effect
+ */
+static void
+xf86RandR12AdjustFrame(int scrnIndex, int x, int y, int flags)
+{
+ ScrnInfoPtr scrn = xf86Screens[scrnIndex];
+ XF86RandRInfoPtr randrp = XF86RANDRINFO(scrn->pScreen);
+
+ (void) xf86GetPrimaryOutput(scrn);
+
+ scrn->AdjustFrame = randrp->orig_AdjustFrame;
+ scrn->AdjustFrame(scrnIndex, x, y, flags);
+ randrp->orig_AdjustFrame = scrn->AdjustFrame;
+ scrn->AdjustFrame = xf86RandR12AdjustFrame;
+}
+
static Bool
xf86RandR12Init12 (ScreenPtr pScreen)
{
@@ -1794,6 +1813,9 @@ xf86RandR12Init12 (ScreenPtr pScreen)
randrp->orig_EnterVT = pScrn->EnterVT;
pScrn->EnterVT = xf86RandR12EnterVT;
+ randrp->orig_AdjustFrame = pScrn->AdjustFrame;
+ pScrn->AdjustFrame = xf86RandR12AdjustFrame;
+
if (!xf86RandR12CreateObjects12 (pScreen))
return FALSE;
--
1.6.5.2