I'm having a strange problem supporting more than one resolution in my project. The following code sample is typical of sample code to handle this issue. I get the correct resolution (frame) index in glCommitCtrl[3] when the wValue is PROBE, but I always get glCommitCtrl[3] = 1 when the wValue is COMMIT.
In addition, the values in glCommitCtrl[18]-[21] contain the frame size when these commands are received. The frame size is actually correct for the intended resolution (per the descriptors). For example if 640x480 is index #1 and 320x240 is index #2 and 320x240 is the intended resolution then the frame size will be correct for 320x240 but the index will be 1 (640x480). I am able to get around this problem by storing the frame index when I get the set PROBE and ignoring the value when I set the set COMMIT and using the one stored from PROBE.
Just wondering if this issue is familiar to anyone and they were able to solve it.
/* Set Probe Control */
if (wValue == CX3_APP_VS_PROBE_CONTROL)
{
glCurrentFrameIndex = glCommitCtrl[3];
}
else
{
/* Set Commit Control and Start Streaming*/
if (wValue == CX3_APP_VS_COMMIT_CONTROL)
{
CyCx3AppImageSensorSetVideoResolution (glCommitCtrl[3]);
if (glIsApplnActive)
{
#ifdef CX3_DEBUG_ENABLED
CyU3PDebugPrint (4, "\n\rUSB Setup CB:Call AppSTOP1");
#endif
CyCx3AppStop();
}
CyCx3AppStart();
}
}
}
John A
