// change the video mode to one of the available resolution codes, currently:
// 0 - 640x480, Fullscreen
// 1 - Windowed scale x1 (320x240)
// 2 - Windowed scale x2 (640x480)
// 3 - Windowed scale x3 (960x720)
bool Graphics::SetResolution(int r, bool restoreOnFailure)
{
stat("Graphics::SetResolution(%d)", r);
if (r == current_res)
return 0;
int old_res = current_res;
#ifdef IPHONE
restoreOnFailure = false;
if (SelectResolution())
{
staterr("SelectResolution() failed!");
return 1;
}
#else
int factor;
if (r == 0)
{
is_fullscreen = true;
factor = 2;
}
else
{
is_fullscreen = false;
factor = r;
}
stat("Setting scaling %d and fullscreen=%s", factor, is_fullscreen ? "yes":"no");
NXSurface::SetScale(factor);
#endif
if (Graphics::InitVideo())
{
staterr("Switch to resolution %d failed!", r);
if (restoreOnFailure)
{
staterr("Trying to recover old mode %d.", r, old_res);
if (Graphics::SetResolution(old_res, false))
{
staterr("Fatal error: vidmode recovery failed!!!");
}
}
return 1;
}
if (Graphics::FlushAll()) return 1;
return 0;
}
Bool
ResolutionSetResolution(uint32 width,
uint32 height)
{
ResolutionInfoX11Type *resInfoX = &resolutionInfoX11;
Bool ret;
ASSERT(resolutionInfo.canSetResolution);
XGrabServer(resInfoX->display);
if (resInfoX->canUseVMwareCtrl) {
/*
* If so, use the VMWARE_CTRL extension to provide a custom resolution
* which we'll find as an exact match from XRRConfigSizes() (unless
* the resolution is too large).
*
* As such, we don't care if this succeeds or fails, we'll make a best
* effort attempt to change resolution anyway.
*
* On vmwgfx, this is routed through the X server down to the
* kernel modesetting system to provide a preferred mode with
* correcte width and height.
*/
VMwareCtrl_SetRes(resInfoX->display, DefaultScreen(resInfoX->display),
width, height);
}
/*
* Use legacy RandR (vmwlegacy) or RandR12 (vmwgfx) to select the
* desired mode.
*/
ret = SelectResolution(width, height);
XUngrabServer(resInfoX->display);
XFlush(resInfoX->display);
return ret;
}
Bool
ResolutionSetTopology(unsigned int ndisplays,
DisplayTopologyInfo *topology)
{
#ifdef NO_MULTIMON
return FALSE;
#else
ResolutionInfoX11Type *resInfoX = &resolutionInfoX11;
Bool success = FALSE;
unsigned int i;
xXineramaScreenInfo *displays = NULL;
short maxX = 0;
short maxY = 0;
int minX = 0x7FFF;
int minY = 0x7FFF;
ASSERT(resolutionInfo.canSetTopology);
/*
* Allocate xXineramaScreenInfo array & translate from DisplayTopologyInfo.
* Iterate over displays looking for minimum, maximum dimensions.
* Warn if min isn't at (0,0).
* Transform to (0,0).
* Call out to VMwareCtrl_SetTopology.
* Set new jumbotron resolution.
*/
displays = malloc(sizeof *displays * ndisplays);
if (!displays) {
goto out;
}
for (i = 0; i < ndisplays; i++) {
displays[i].x_org = topology[i].x;
displays[i].y_org = topology[i].y;
displays[i].width = topology[i].width;
displays[i].height = topology[i].height;
maxX = MAX(maxX, displays[i].x_org + displays[i].width);
maxY = MAX(maxY, displays[i].y_org + displays[i].height);
minX = MIN(minX, displays[i].x_org);
minY = MIN(minY, displays[i].y_org);
}
if (minX != 0 || minY != 0) {
g_warning("The bounding box of the display topology does not have an "
"origin of (0,0)\n");
}
/*
* Transform the topology so that the bounding box has an origin of (0,0). Since the
* host is already supposed to pass a normalized topology, this should not have any
* effect.
*/
for (i = 0; i < ndisplays; i++) {
displays[i].x_org -= minX;
displays[i].y_org -= minY;
}
/*
* Grab server to avoid potential races between setting GUI topology
* and setting FB topology.
*/
XGrabServer(resInfoX->display);
/*
* First, call vmwarectrl to update the connection info
* and resolution capabilities of connected monitors,
* according to the host GUI layout on vmwgfx. On vmwlegacy this
* sets the driver's exported Xinerama topology.
*
* For vmwgfx, this might be replaced with a direct kernel driver call
* in upcoming versions.
*/
if (resInfoX->canUseVMwareCtrlTopologySet) {
if (!VMwareCtrl_SetTopology(resInfoX->display,
DefaultScreen(resInfoX->display),
displays, ndisplays)) {
g_debug("Failed to set topology in the driver.\n");
goto out;
}
}
if (resInfoX->canUseRandR12) {
/*
* For vmwgfx, use RandR12 to set the FB layout to a 1:1 mapping
* of the host GUI layout.
*/
success = RandR12_SetTopology(resInfoX->display,
DefaultScreen(resInfoX->display),
resInfoX->rootWindow,
ndisplays, displays,
maxX - minX, maxY - minY);
} else if (resInfoX->canUseVMwareCtrlTopologySet) {
/*
* For vmwlegacy, use legacy RandR to set the backing framebuffer
* size. We don't do this unless we were able to set a new
* topology using vmwarectrl.
*/
if (!SelectResolution(maxX - minX, maxY - minY)) {
g_debug("Failed to set new resolution.\n");
goto out;
}
success = TRUE;
}
out:
XUngrabServer(resInfoX->display);
XFlush(resInfoX->display);
free(displays);
return success;
#endif
}
