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randr: Panning support

This commit is contained in:
Matthias Hopf 2008-11-28 17:49:31 +01:00
parent 834cbc16f3
commit b929d721ef
2 changed files with 178 additions and 2 deletions
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22
hw/xfree86/modes/xf86Crtc.c
View File

@ -328,7 +328,13 @@ xf86CrtcSetModeTransform (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotati
crtc->x, crtc->y);
}
/* XXX short-circuit changes to base location only */
if (crtc->funcs->pan &&
memcmp (mode, &saved_mode, sizeof(saved_mode)) == 0 &&
saved_rotation == rotation) {
crtc->funcs->pan (crtc, crtc->x, crtc->y);
ret = TRUE;
goto done;
}
/* Pass our mode to the outputs and the CRTC to give them a chance to
* adjust it according to limitations or output properties, and also
@ -418,6 +424,20 @@ xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
return xf86CrtcSetModeTransform (crtc, mode, rotation, NULL, x, y);
}
/**
* Pans the screen, does not change the mode
*/
_X_EXPORT void
xf86CrtcPan (xf86CrtcPtr crtc, int x, int y)
{
crtc->x = x;
crtc->y = y;
if (crtc->funcs->pan)
crtc->funcs->pan (crtc, x, y);
else
xf86CrtcSetMode (crtc, &crtc->mode, crtc->rotation, x, y);
}
/*
* Output functions
*/

156
hw/xfree86/modes/xf86RandR12.c
View File

@ -51,6 +51,8 @@ typedef struct _xf86RandR12Info {
int mmHeight;
int maxX;
int maxY;
int pointerX;
int pointerY;
Rotation rotation; /* current mode */
Rotation supported_rotations; /* driver supported */
} XF86RandRInfoRec, *XF86RandRInfoPtr;
@ -86,6 +88,85 @@ xf86RandR12ModeRefresh (DisplayModePtr mode)
return (int) (mode->Clock * 1000.0 / mode->HTotal / mode->VTotal + 0.5);
}
static int
xf86RandR13VerifyPanningArea (xf86CrtcPtr crtc, int screenWidth, int screenHeight)
{
if (crtc->version < 2)
return FALSE;
if (crtc->panningTotalArea.x2 <= crtc->panningTotalArea.x1 ||
crtc->panningTotalArea.y2 <= crtc->panningTotalArea.y1) {
memset (&crtc->panningTotalArea, 0, sizeof(BoxRec));
memset (&crtc->panningTrackingArea, 0, sizeof(BoxRec));
memset (&crtc->panningBorder, 0, 4*sizeof(INT16));
return TRUE;
}
if (crtc->panningTotalArea.x2 <= crtc->panningTotalArea.x1 ||
crtc->panningTotalArea.y2 <= crtc->panningTotalArea.y1 ||
crtc->panningTotalArea.x1 < 0 ||
crtc->panningTotalArea.y1 < 0 ||
crtc->panningTotalArea.x2 < crtc->panningTotalArea.x1 + crtc->mode.HDisplay ||
crtc->panningTotalArea.y2 < crtc->panningTotalArea.y1 + crtc->mode.VDisplay ||
crtc->panningTotalArea.x2 > screenWidth ||
crtc->panningTotalArea.y2 > screenHeight)
{
memset (&crtc->panningTotalArea, 0, sizeof(BoxRec));
memset (&crtc->panningTrackingArea, 0, sizeof(BoxRec));
memset (&crtc->panningBorder, 0, 4*sizeof(INT16));
return FALSE;
}
if (crtc->panningBorder[0] + crtc->panningBorder[2] > crtc->mode.HDisplay ||
crtc->panningBorder[1] + crtc->panningBorder[3] > crtc->mode.VDisplay) {
memset (&crtc->panningBorder, 0, 4*sizeof(INT16));
return FALSE;
}
return TRUE;
}
static void
xf86RandR13Pan (xf86CrtcPtr crtc, int x, int y)
{
int newX, newY;
int width, height;
if (crtc->version < 2)
return;
if (! crtc->enabled ||
crtc->panningTotalArea.x2 <= crtc->panningTotalArea.x1 ||
crtc->panningTotalArea.y2 <= crtc->panningTotalArea.y1)
return;
newX = crtc->x;
newY = crtc->y;
width = crtc->mode.HDisplay;
height = crtc->mode.VDisplay;
if (x >= crtc->panningTrackingArea.x1 && x < crtc->panningTrackingArea.x2 &&
y >= crtc->panningTrackingArea.y1 && y < crtc->panningTrackingArea.y2) {
if (x < crtc->x + crtc->panningBorder[0])
newX = x - crtc->panningBorder[0];
if (x >= crtc->x + width - crtc->panningBorder[2])
newX = x - width + crtc->panningBorder[2] + 1;
if (y < crtc->y + crtc->panningBorder[1])
newY = y - crtc->panningBorder[1];
if (y >= crtc->y + height - crtc->panningBorder[3])
newY = y - height + crtc->panningBorder[3] + 1;
}
/* Validate against [xy]1 after [xy]2, to be sure that results are > 0 for [xy]1 > 0 */
if (newX >= crtc->panningTotalArea.x2 - width)
newX = crtc->panningTotalArea.x2 - width - 1;
if (newX < crtc->panningTotalArea.x1)
newX = crtc->panningTotalArea.x1;
if (newY >= crtc->panningTotalArea.y2 - height)
newY = crtc->panningTotalArea.y2 - height - 1;
if (newY < crtc->panningTotalArea.y1)
newY = crtc->panningTotalArea.y1;
if (newX != crtc->x || newY != crtc->y)
xf86CrtcPan (crtc, newX, newY);
}
static Bool
xf86RandR12GetInfo (ScreenPtr pScreen, Rotation *rotations)
{
@ -332,6 +413,7 @@ xf86RandR12ScreenSetSize (ScreenPtr pScreen,
WindowPtr pRoot = WindowTable[pScreen->myNum];
PixmapPtr pScrnPix = (*pScreen->GetScreenPixmap)(pScreen);
Bool ret = FALSE;
int c;
#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
if (xf86RandR12Key) {
@ -352,6 +434,19 @@ xf86RandR12ScreenSetSize (ScreenPtr pScreen,
goto finish;
ret = TRUE;
/* Update panning information */
for (c = 0; c < config->num_crtc; c++) {
xf86CrtcPtr crtc = config->crtc[c];
if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1 &&
crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1) {
crtc->panningTotalArea.x2 += width - pScreen->width;
crtc->panningTotalArea.y2 += height - pScreen->height;
crtc->panningTrackingArea.x2 += width - pScreen->width;
crtc->panningTrackingArea.y2 += height - pScreen->height;
xf86RandR13VerifyPanningArea (crtc, width, height);
xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);
}
}
pScreen->width = pScrnPix->drawable.width = width;
pScreen->height = pScrnPix->drawable.height = height;
@ -762,6 +857,7 @@ xf86RandR12CrtcSet (ScreenPtr pScreen,
int num_randr_outputs,
RROutputPtr *randr_outputs)
{
XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
xf86CrtcPtr crtc = randr_crtc->devPrivate;
@ -841,6 +937,8 @@ xf86RandR12CrtcSet (ScreenPtr pScreen,
xfree(save_crtcs);
return FALSE;
}
xf86RandR13VerifyPanningArea (crtc, pScreen->width, pScreen->height);
xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);
/*
* Save the last successful setting for EnterVT
*/
@ -1187,6 +1285,62 @@ xf86RandR12TellChanged (ScreenPtr pScreen)
static void
xf86RandR12PointerMoved (int scrnIndex, int x, int y)
{
ScreenPtr pScreen = screenInfo.screens[scrnIndex];
ScrnInfoPtr pScrn = XF86SCRNINFO(pScreen);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
int c;
randrp->pointerX = x;
randrp->pointerY = y;
for (c = 0; c < config->num_crtc; c++)
xf86RandR13Pan (config->crtc[c], x, y);
}
static Bool
xf86RandR13GetPanning (ScreenPtr pScreen,
RRCrtcPtr randr_crtc,
BoxPtr totalArea,
BoxPtr trackingArea,
INT16 *border)
{
xf86CrtcPtr crtc = randr_crtc->devPrivate;
if (crtc->version < 2)
return FALSE;
if (totalArea)
memcpy (totalArea, &crtc->panningTotalArea, sizeof(BoxRec));
if (trackingArea)
memcpy (trackingArea, &crtc->panningTrackingArea, sizeof(BoxRec));
if (border)
memcpy (border, crtc->panningBorder, 4*sizeof(INT16));
return TRUE;
}
static Bool
xf86RandR13SetPanning (ScreenPtr pScreen,
RRCrtcPtr randr_crtc,
BoxPtr totalArea,
BoxPtr trackingArea,
INT16 *border)
{
XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
xf86CrtcPtr crtc = randr_crtc->devPrivate;
int ret;
if (crtc->version < 2)
return FALSE;
if (totalArea)
memcpy (&crtc->panningTotalArea, totalArea, sizeof(BoxRec));
if (trackingArea)
memcpy (&crtc->panningTrackingArea, trackingArea, sizeof(BoxRec));
if (border)
memcpy (crtc->panningBorder, border, 4*sizeof(INT16));
ret = xf86RandR13VerifyPanningArea (crtc, pScreen->width, pScreen->height);
xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);
return ret;
}
static Bool
@ -1203,6 +1357,8 @@ xf86RandR12Init12 (ScreenPtr pScreen)
rp->rrOutputValidateMode = xf86RandR12OutputValidateMode;
#if RANDR_13_INTERFACE
rp->rrOutputGetProperty = xf86RandR13OutputGetProperty;
rp->rrGetPanning = xf86RandR13GetPanning;
rp->rrSetPanning = xf86RandR13SetPanning;
#endif
rp->rrModeDestroy = xf86RandR12ModeDestroy;
rp->rrSetConfig = NULL;