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/*****************************************************************************/
/**
*
* @file cresample_conversion_example.c
*
* This file contains an example how CRESAMPLE type conversions will be done
* on the device.
*
* @note
*
* None
*
* MODIFICATION HISTORY:
* <pre>
* Ver Who Date Changes
* ----- ------ -------- -----------------------------------------------
* 4.0 adk 03/12/14 First release.
*
* </pre>
******************************************************************************/
/***************************** Include Files *********************************/
#include "xcresample.h"
#include "xparameters.h"
#include "xil_printf.h"
#include "stdio.h"
/************************** Constant Definitions *****************************/
/*
* The following constants map to the XPAR parameters created in the
* xparameters.h file. They are defined here such that a user can easily
* change all the needed parameters in one place.
*/
#define CRESAMPLE_DEVICE_ID XPAR_CRESAMPLE_0_DEVICE_ID
/**< CRESAMPLE Device ID */
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
/************************** Function Prototypes ******************************/
int CresampleTypeConversion(u16 DeviceId);
/************************** Variable Definitions *****************************/
XCresample Cresample; /**<Instance of the Cresample core */
/*****************************************************************************/
/**
*
* Main function to call the example.
*
* @return
* - XST_SUCCESS if successful.
* - XST_FAILURE if failed.
*
* @note None.
*
******************************************************************************/
int main(void)
{
int Status;
/* Run the Conversion example */
Status = CresampleTypeConversion(CRESAMPLE_DEVICE_ID);
/* Checking status */
if (Status != (XST_SUCCESS)) {
xil_printf("Cresample Coversion Example is Failed\r\n");
return (XST_FAILURE);
}
xil_printf("Successfully ran Cresample Coversion Example\r\n");
return (XST_SUCCESS);
}
/*****************************************************************************/
/**
*
* This function is to select the type of conversion from menu based on the
* selection conversion will take place.
*
* @param Cresample is a pointer to the XCresample instance to be worked
* on.
*
* @return None.
*
* @note None.
*
******************************************************************************/
int CresampleTypeConversion(u16 DeviceId)
{
XHorizontal_Coeffs CoefH =
{.HCoeff = {{-2,-1,-1.23,0,0.1234,-1.78,0,0.9,0.8,0.0123,0,-1,
-1.23,-1.567,-1,0,1.527,1,1.9,0,-1,0,1.89,-2},
{-1,-1,0,0,1,0,1,-1,0,1,0,1,0,1,-1,1,-1,1,0,1,0,1,1,1}}};
XVertical_Coeffs CoefV = {.VCoeff = {{-2,1.1,-1,0,0.1,-2,-1.98,1.98},
{0,1,0,1,-2,1,0,1} }};
u32 HPhases;
u32 VPhases;
int Status;
XCresample_Config *Config;
/*
* Initialize the CRESAMPLE driver so that it's ready to use
* Look up the configuration in the config table,
* then initialize it.
*/
Config = XCresample_LookupConfig(DeviceId);
/* Checking Config variable */
if (NULL == Config) {
return (XST_FAILURE);
}
Status = XCresample_CfgInitialize(&Cresample, Config,
Config->BaseAddress);
/* Checking status */
if (Status != (XST_SUCCESS)) {
return (XST_FAILURE);
}
/* For 4:4:4 to 4:2:2 conversion */
/*
* Horizontal filter phase 0 coefficients needs to be set.
* NumHTaps should be configured to odd numbers
* (3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23).
* API used is XCresample_SetHCoefs.
*/
if ((Cresample.Config.NumHTaps % 2) != 0) {
HPhases = 0;
/* Clear all Horizontal and Vertical coefficients before setting */
XCresample_Clear_VCoef_Values(&Cresample);
XCresample_SetHCoefs(&Cresample, &CoefH, HPhases);
}
/* For 4:2:2 to 4:4:4 conversion */
/*
* Horizontal filter phase 1 coefficients needs to be set.
* NumHTaps should be configured to even numbers
* (2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24).
* API used is XCresample_SetHCoefs.
*/
if ((Cresample.Config.NumHTaps % 2) == 0) {
HPhases = 1;
/* Clear all Horizontal and Vertical coefficients before setting */
XCresample_Clear_VCoef_Values(&Cresample);
XCresample_SetHCoefs(&Cresample, &CoefH, HPhases);
}
/* For 4:2:2 to 4:2:0 conversion */
/*
* Vertical filter phase 0 coefficients needs to be set.
* NumVTaps should be configured to even numbers(2, 4, 6, 8).
* API used is XCresample_SetVCoefs.
*/
if ((Cresample.Config.NumVTaps % 2) == 0) {
VPhases = 0;
/* Clear all Horizontal and Vertical coefficients before setting */
XCresample_Clear_HCoef_Values(&Cresample);
XCresample_SetVCoefs(&Cresample, &CoefV, VPhases);
}
/* For 4:2:0 to 4:2:2 conversion */
/*
* Vertical filter phase 1 coefficients needs to be set.
* NumVTaps should be configured to even numbers(2, 4, 6, 8).
* API used is XCresample_SetVCoefs.
*/
if ((Cresample.Config.NumVTaps % 2) == 0) {
VPhases = 0;
/* Clear all Horizontal and Vertical coefficients before setting */
XCresample_Clear_HCoef_Values(&Cresample);
XCresample_SetVCoefs(&Cresample, &CoefV, VPhases);
}
/* For 4:4:4 to 4:2:0 conversion */
/*
* Vertical filter phase 0 and Horizontal filter phase 0
* coefficients needs to be set.
* NumVTaps should be configured to even numbers(2, 4, 6, 8).
* NumHTaps should be configured to odd numbers
* (3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23).
* APIs used are XCresample_SetHCoefs and XCresample_SetVCoefs.
*/
if (((Cresample.Config.NumVTaps % 2) == 0) &&
((Cresample.Config.NumHTaps % 2) != 0)) {
VPhases = 0;
HPhases = 0;
XCresample_SetHCoefs(&Cresample, &CoefH, HPhases);
XCresample_SetVCoefs(&Cresample, &CoefV, VPhases);
}
/* For 4:2:0 to 4:4:4 conversion */
/*
* Vertical filter phase 0 and 1 and Horizontal filter phase 1
* coefficients needs to be set.
* NumVTaps should be configured to even numbers(2, 4, 6, 8).
* NumHTaps should be configured to even numbers
* (2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24).
* APIs used are XCresample_SetHCoefs and XCresample_SetVCoefs.
*/
if (((Cresample.Config.NumVTaps % 2) == 0) &&
((Cresample.Config.NumHTaps % 2) == 0)) {
VPhases = 2;
HPhases = 1;
XCresample_SetHCoefs(&Cresample, &CoefH, HPhases);
XCresample_SetVCoefs(&Cresample, &CoefV, VPhases);
}
return (XST_SUCCESS);
}