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Account for CRTC rotation in the cursor containment code.

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This commit is contained in:
Eric Anholt 2007-01-18 14:28:01 -08:00
parent df147c10ce
commit a811e92104
1 changed files with 42 additions and 8 deletions
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50
randr/rrpointer.c
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@ -22,6 +22,32 @@
#include "randrstr.h"
/**
* Returns the width/height that the crtc scans out from the framebuffer
*/
static void
RRCrtcGetScanoutSize(RRCrtcPtr crtc, int *width, int *height)
{
if (crtc->mode == NULL) {
*width = 0;
*height = 0;
return;
}
switch (crtc->rotation & 0xf) {
case RR_Rotate_0:
case RR_Rotate_180:
*width = crtc->mode->mode.width;
*height = crtc->mode->mode.height;
break;
case RR_Rotate_90:
case RR_Rotate_270:
*width = crtc->mode->mode.height;
*height = crtc->mode->mode.width;
break;
}
}
/*
* When the pointer moves, check to see if the specified position is outside
* any of theavailable CRTCs and move it to a 'sensible' place if so, where
@ -34,11 +60,15 @@ static Bool
RRCrtcContainsPosition (RRCrtcPtr crtc, int x, int y)
{
RRModePtr mode = crtc->mode;
int scan_width, scan_height;
if (!mode)
return FALSE;
if (crtc->x <= x && x < crtc->x + mode->mode.width &&
crtc->y <= y && y < crtc->y + mode->mode.height)
RRCrtcGetScanoutSize (crtc, &scan_width, &scan_height);
if (crtc->x <= x && x < crtc->x + scan_width &&
crtc->y <= y && y < crtc->y + scan_height)
return TRUE;
return FALSE;
}
@ -54,28 +84,32 @@ RRPointerToNearestCrtc (ScreenPtr pScreen, int x, int y, RRCrtcPtr skip)
RRCrtcPtr nearest = NULL;
int best = 0;
int best_dx = 0, best_dy = 0;
for (c = 0; c < pScrPriv->numCrtcs; c++)
{
RRCrtcPtr crtc = pScrPriv->crtcs[c];
RRModePtr mode = crtc->mode;
int dx, dy;
int dist;
int scan_width, scan_height;
if (!mode)
continue;
if (crtc == skip)
continue;
RRCrtcGetScanoutSize (crtc, &scan_width, &scan_height);
if (x < crtc->x)
dx = crtc->x - x;
else if (x > crtc->x + mode->mode.width)
dx = x - (crtc->x + mode->mode.width);
else if (x > crtc->x + scan_width)
dx = x - (crtc->x + scan_width);
else
dx = 0;
if (y < crtc->y)
dy = crtc->y - x;
else if (y > crtc->y + mode->mode.height)
dy = y - (crtc->y + mode->mode.height);
else if (y > crtc->y + scan_height)
dy = y - (crtc->y + scan_height);
else
dy = 0;
dist = dx + dy;