IOReturn IOAccelCreateSurface( io_service_t accelerator, UInt32 wID, eIOAccelSurfaceModeBits modebits,
IOAccelConnect *connect )
{
IOReturn kr;
io_connect_t window = MACH_PORT_NULL;
*connect = NULL;
/* Create a context */
kr = IOServiceOpen( accelerator,
mach_task_self(),
kIOAccelSurfaceClientType,
&window );
if( kr != kIOReturnSuccess)
{
return kr;
}
/* Set the window id */
uint64_t data[] = { wID, modebits };
kr = IOConnectCallScalarMethod(window, kIOAccelSurfaceSetIDMode,
data, arrayCnt(data), NULL, NULL);
if(kr != kIOReturnSuccess)
{
IOServiceClose(window);
return kr;
}
*connect = (IOAccelConnect) (uintptr_t) window;
return kIOReturnSuccess;
}
/* Flush surface to visible region */
IOReturn IOAccelFlushSurfaceOnFramebuffers( IOAccelConnect connect, IOOptionBits options, UInt32 framebufferMask )
{
uint64_t inData[] = { framebufferMask, options };
return IOConnectCallMethod((io_connect_t) (uintptr_t) connect, kIOAccelSurfaceFlush,
inData, arrayCnt(inData), NULL, 0,// input
NULL, NULL, NULL, NULL); // output
}
IOReturn IOAccelCreateAccelID(IOOptionBits options, IOAccelID * identifier)
{
IOReturn err;
if (!idConnect)
{
io_service_t
service = IORegistryEntryFromPath(kIOMasterPortDefault,
kIOServicePlane ":/IOResources/IODisplayWrangler");
if (service)
{
err = IOServiceOpen(service, mach_task_self(), 0, &idConnect);
IOObjectRelease(service);
}
}
if (!idConnect)
return (kIOReturnNotReady);
uint64_t inData[] = { options, *identifier };
uint64_t outData;
uint32_t outLen = 1;
err = IOConnectCallScalarMethod(idConnect, kAlloc,
inData, arrayCnt(inData),
&outData, &outLen);
*identifier = (IOAccelID) outData;
return (err);
}
IOReturn IOAccelSetSurfaceFramebufferShape( IOAccelConnect connect, IOAccelDeviceRegion *rgn,
eIOAccelSurfaceShapeBits options, UInt32 framebufferIndex )
{
uint64_t inData[] = { options, framebufferIndex };
IOReturn result;
size_t rgnSize = regionSize(rgn);
result = IOConnectCallMethod((io_connect_t) (uintptr_t) connect, kIOAccelSurfaceSetShape,
inData, arrayCnt(inData), rgn, rgnSize,
NULL, NULL, NULL, NULL); // no output
return result;
}
IOReturn IOAccelSurfaceControl( IOAccelConnect connect,
UInt32 selector, UInt32 arg, UInt32 * result)
{
uint64_t inData[] = { selector, arg };
uint64_t outData;
uint32_t outSize = 1;
IOReturn err = IOConnectCallScalarMethod((io_connect_t) (uintptr_t)connect, kIOAccelSurfaceControl,
inData, arrayCnt(inData), &outData, &outSize);
*result = (UInt32) outData;
return( err );
}
IOReturn IOAccelDestroyAccelID(IOOptionBits options, IOAccelID identifier)
{
IOReturn err;
if (!idConnect)
return (kIOReturnNotReady);
uint64_t inData[] = { options, identifier };
err = IOConnectCallScalarMethod(idConnect, kFree,
inData, arrayCnt(inData), NULL, NULL);
return (err);
}
IOReturn IOAccelSetSurfaceFramebufferShapeWithBackingAndLength( IOAccelConnect connect, IOAccelDeviceRegion *rgn,
eIOAccelSurfaceShapeBits options, UInt32 framebufferIndex,
IOVirtualAddress backing, UInt32 rowbytes, UInt32 backingLength )
{
IOReturn err;
uint64_t inData[] =
{ options, framebufferIndex, backing, rowbytes, backingLength };
size_t rgnSize = regionSize(rgn);
err = IOConnectCallMethod((io_connect_t) (uintptr_t) connect, kIOAccelSurfaceSetShapeBackingAndLength,
inData, arrayCnt(inData), rgn, rgnSize,
NULL, NULL, NULL, NULL); // no output
return (err);
}
IOReturn IOPMSetAggressiveness (
io_connect_t fb,
unsigned long type,
unsigned long aggressiveness )
{
uint64_t inData[] = { type, aggressiveness };
uint64_t rtn = 0;
uint32_t len = 1;
kern_return_t err = IOConnectCallScalarMethod(fb, kPMSetAggressiveness,
inData, arrayCnt(inData), &rtn, &len);
if (err)
return kIOReturnError;
else
return (IOReturn) rtn;
}
