/****************************************************************************** * * Copyright (C) 2014 Xilinx, Inc. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * Use of the Software is limited solely to applications: * (a) running on a Xilinx device, or * (b) that interact with a Xilinx device through a bus or interconnect. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * Except as contained in this notice, the name of the Xilinx shall not be used * in advertising or otherwise to promote the sale, use or other dealings in * this Software without prior written authorization from Xilinx. * ******************************************************************************/ /*****************************************************************************/ /** * * @file ycrcb2rgb_example.c * * This file demonstrates how to use Xilinx YCrCb to RGB Color Space Converter * (YCrCb2RGB) driver on Xilinx YCrCb to RGB Color Space Converter (YCrCb2RGB) * core. * *
* MODIFICATION HISTORY:
*
* Ver   Who  Date     Changes
* ----- ---- -------- -------------------------------------------------------
* 7.00 adk   07/14/14 First release.
* 
* ******************************************************************************/ #include "xycrcb2rgb.h" #include "xparameters.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 XYCC_DEVICE_ID XPAR_YCRCB2RGB_0_DEVICE_ID /**************************** Type Definitions *******************************/ /***************** Macros (Inline Functions) Definitions *********************/ /************************** Function Prototypes ******************************/ int YCrCb2Rgb_Update_Example(u16 DeviceId); /************************** Variable Definitions *****************************/ XYCrCb2Rgb XYccInstance; /**< Instance of the YCRCB2RGB core */ /************************** Function Definitions *****************************/ /*****************************************************************************/ /** * * Main function to call the YCrCb2RGB example. * * @param None. * * @return * - XST_SUCCESS if successful, * - XST_FAILURE if it is unsuccessful * * @note None. * ******************************************************************************/ int main(void) { int Status; /* Call the YCrCb2RGB update example, specify the parameters generated * in xparameters.h */ Status = YCrCb2Rgb_Update_Example(XYCC_DEVICE_ID); if (Status != XST_SUCCESS) { xil_printf("YCrCb2RGB driver example failed.\n\r"); return XST_FAILURE; } xil_printf("Successfully ran YCrCb2RGB driver example.\n\r"); return XST_SUCCESS; } /*****************************************************************************/ /** * * YCrCb to RGB Color Space Converter Register Update Example. * This function provides an example of the process used to update the * coefficient and offset registers in the YCRCB2RGB core. * * @param DeviceId is the unique device id of the YCRCB2RGB core. * * @return * - XST_SUCCESS if successful, * - XST_FAILURE if it is un-successful * * @note None. * ****************************************************************************/ int YCrCb2Rgb_Update_Example(u16 DeviceId) { struct XYCrCb2Rgb_Coef_Inputs CoefIn; struct XYCrCb2Rgb_Coef_Outputs CoefOut; struct XYCrCb2Rgb_Coefficients Coef; XYCrCb2Rgb_Config *Config; int Status; /* Initialize the CrCb2RGB driver so that it's ready to use look up * the configuration in the config table then initialize it. */ Config = XYCrCb2Rgb_LookupConfig(DeviceId); if(NULL == Config){ return XST_FAILURE; } Status = XYCrCb2Rgb_CfgInitialize(&XYccInstance, Config, Config->BaseAddress); if(Status != XST_SUCCESS){ return XST_FAILURE; } /* Enable the YCRCB2RGB core */ XYCrCb2Rgb_Enable(&XYccInstance); /* Disable register updates. This is the default operating mode for * the YCRCB2RGB core and allows registers to be updated without * effecting the core's behavior. */ XYCrCb2Rgb_RegUpdateDisable(&XYccInstance); /* Setup CoefIn for XYCC_STANDARD_ITU_601_SD, 16_to_240_for_TV * and data width of 8-bits. * enum XYcc_Standards are: * 0 = XYCC_STANDARD_ITU_601_SD * 1 = XYCC_STANDARD_ITU_709_NTSC * 2 = XYCC_STANDARD_ITU_709_PAL * 3 = XYCC_STANDARD_YUV. */ XYCrCb2Rgb_Select_Standard(&XYccInstance, XYCC_STANDARD_ITU_601_SD, XYCC_TV_16_TO_240, (u32)XYCC_DATA_WIDTH_8, &CoefIn); /* Translate into YCRCB2RGB core coefficients */ XYCrCb2Rgb_Coefficient_Translation(&XYccInstance, &CoefIn, &CoefOut,(u32)XYCC_DATA_WIDTH_8, (u32)XYCC_DATA_WIDTH_8); /* Store coefficient values */ Coef.ACoef = CoefIn.ACoef; Coef.ACoef = CoefIn.ACoef; Coef.ACoef = CoefIn.ACoef; Coef.ACoef = CoefIn.ACoef; /* Program the new YCRCB2RGB core coefficients */ XYCrCb2Rgb_SetCoefs(&XYccInstance, &Coef); /* Set output range */ XYCrCb2Rgb_Select_OutputRange(&XYccInstance, XYCC_TV_16_TO_240); /* Set the Active Columns and Rows */ XYCrCb2Rgb_SetActiveSize(&XYccInstance, 720, 1280); /* Set the offsets * For 8-bit color: Valid range = [0, 255] * For 10-bit color: Valid range = [0, 1023] * For 12-bit color: Valid range = [0, 4095] * For 16-bit color: Valid range = [0, 65535] */ XYCrCb2Rgb_SetROffset(&XYccInstance, 16); XYCrCb2Rgb_SetGOffset(&XYccInstance, 128); XYCrCb2Rgb_SetBOffset(&XYccInstance, 128); /* Set the Clip/Clamp * For 8-bit color: Valid range = [0, 255] * For 10-bit color: Valid range = [0, 1023] * For 12-bit color: Valid range = [0, 4095] * For 16-bit color: Valid range = [0, 65535] */ XYCrCb2Rgb_SetRGBMax(&XYccInstance, 240); XYCrCb2Rgb_SetRGBMin(&XYccInstance, 16); /* Enable register updates. This mode will cause the coefficient and * offset registers internally to the YCRCB2RGB core to automatically * be updated on the next start-of-frame (SOF). */ XYCrCb2Rgb_RegUpdateEnable(&XYccInstance); return XST_SUCCESS; }