#define IOCONNECT_MAPMEMORY_10_6 1
#define IOFB_ARBITRARY_FRAMES_CURSOR 1
#include <CoreFoundation/CoreFoundation.h>
#include <ApplicationServices/ApplicationServices.h>
#include <mach/mach_time.h>
#include <IOKit/graphics/IOGraphicsLib.h>
#include <IOKit/graphics/IOFramebufferShared.h>
#include <IOKit/graphics/IOGraphicsTypesPrivate.h>
#include <stdlib.h>
#include <stdio.h>
int main(int argc, char * argv[])
{
kern_return_t kr;
io_iterator_t iter;
io_service_t framebuffer;
io_string_t path;
uint32_t index, maxIndex;
io_connect_t connect;
mach_timebase_info_data_t timebase;
StdFBShmem_t * shmem[16];
vm_size_t shmemSize;
CFNumberRef clk, count;
vm_address_t mapAddr;
kr = IOServiceGetMatchingServices(kIOMasterPortDefault, IOServiceMatching(
IOFRAMEBUFFER_CONFORMSTO), &iter);
assert( KERN_SUCCESS == kr );
for ( index = 0;
index++, (framebuffer = IOIteratorNext(iter));
IOObjectRelease(framebuffer))
{
kr = IORegistryEntryGetPath(framebuffer, kIOServicePlane, path);
assert( KERN_SUCCESS == kr );
printf("\n/* [%d] Using device: %s */\n", index, path);
clk = IORegistryEntryCreateCFProperty(framebuffer, CFSTR(kIOFBCurrentPixelClockKey),
kCFAllocatorDefault, kNilOptions);
count = IORegistryEntryCreateCFProperty(framebuffer, CFSTR(kIOFBCurrentPixelCountKey),
kCFAllocatorDefault, kNilOptions);
if (clk && count)
{
float num, div;
CFNumberGetValue(clk, kCFNumberFloatType, &num);
CFNumberGetValue(count, kCFNumberFloatType, &div);
printf("clock %.0f, count %.0f, rate %f Hz, period %f us\n",
num, div, num / div, div * 1000 / num);
}
if (clk)
CFRelease(clk);
if (count)
CFRelease(count);
kr = mach_timebase_info(&timebase);
assert(kIOReturnSuccess == kr);
kr = IOServiceOpen(framebuffer, mach_task_self(), kIOFBSharedConnectType, &connect);
if (kIOReturnSuccess != kr)
{
printf("IOServiceOpen(%x)\n", kr);
continue;
}
kr = IOConnectMapMemory(connect, kIOFBCursorMemory, mach_task_self(),
&mapAddr, &shmemSize,
kIOMapAnywhere);
if (kIOReturnSuccess != kr)
{
printf("IOConnectMapMemory(%x)\n", kr);
continue;
}
shmem[index] = (StdFBShmem_t *) mapAddr;
printf("cursorShow %d, hw %d, frame %d, (%d, %d), cursorRect (%d, %d), (%d, %d), saveRect (%d, %d), (%d, %d)\n",
shmem[index]->cursorShow, shmem[index]->hardwareCursorActive,
shmem[index]->frame, shmem[index]->cursorLoc.x, shmem[index]->cursorLoc.y,
shmem[index]->cursorRect.minx, shmem[index]->cursorRect.miny,
shmem[index]->cursorRect.maxx, shmem[index]->cursorRect.maxy,
shmem[index]->saveRect.minx, shmem[index]->saveRect.miny,
shmem[index]->saveRect.maxx, shmem[index]->saveRect.maxy);
}
maxIndex = index;
while (true)
{
printf("\n");
for (index = 0; index < maxIndex; index++)
{
if (!shmem[index])
continue;
uint64_t time = (((uint64_t) shmem[index]->vblTime.hi) << 32 | shmem[index]->vblTime.lo);
uint64_t delta = (((uint64_t) shmem[index]->vblDelta.hi) << 32 | shmem[index]->vblDelta.lo);
double usecs = delta * timebase.numer / timebase.denom / 1e6;
if (!delta) continue;
printf("[%d] time of last VBL 0x%qx, delta %qd (%f us), count %qd, measured delta %qd(%f%%), drift %qd(%qd%%)\n",
index, time, delta, usecs, shmem[index]->vblCount,
shmem[index]->vblDeltaMeasured, ((shmem[index]->vblDeltaMeasured * 100.0) / delta),
shmem[index]->vblDrift, ((shmem[index]->vblDrift * 100) / delta));
}
for (index = 0; index < maxIndex; index++)
{
if (!shmem[index])
continue;
printf("[%d] cursorShow %d, hw %d, frame %d, (%d, %d), cursorRect (%d, %d), (%d, %d), saveRect (%d, %d), (%d, %d)\n",
index,
shmem[index]->cursorShow, shmem[index]->hardwareCursorActive,
shmem[index]->frame, shmem[index]->cursorLoc.x, shmem[index]->cursorLoc.y,
shmem[index]->cursorRect.minx, shmem[index]->cursorRect.miny,
shmem[index]->cursorRect.maxx, shmem[index]->cursorRect.maxy,
shmem[index]->saveRect.minx, shmem[index]->saveRect.miny,
shmem[index]->saveRect.maxx, shmem[index]->saveRect.maxy);
}
sleep(1);
}
exit(0);
return(0);
}