_csl_prevsetcsc.c

TI达芬奇dm644x各硬件模块测试代码

/** @file _csl_prevSetCSC.c
 *
 *  @brief    File for functional layer of CSL API @a CSL_prevSetCSC()
 *
 *  Description
 *    - The @a CSL_prevSetCSC() function definition & it's associated
 *      functions
 *
 *  @date 19th October, 2004
 *  @author Vignesh LA.
 */

#include <csl_prev_aux.h>

#pragma CODE_SECTION (CSL_prevSetCSC, ".text:csl_section:prev");

/** @brief Configures the CSC using the coefficients and offset values	
 *  passed.
 */
CSL_Status  CSL_prevSetCSC(
    /** Pointer to the object that holds reference to the
     *  instance of PREV requested after the call 
	 */
    CSL_PrevHandle                         hPrev,
    /** Pointer to the structure giving the CSC coefficients and offsets
	 */
    CSL_PrevCSCData                   *data
	){
	
	/*Color space conversion coefficients(S10Q8)
		[CSCRY]  [CSCGY]  [CSCBY]
		[CSCRCB] [CSCGCB] [CSCBCB]
		[CSCRCR] [CSCGCR] [CSCBCR]		
	*/
    
    if(data == NULL) return (CSL_ESYS_INVPARAMS);
	
	hPrev->regs->CSC0	 = CSL_FMK(PREV_CSC0_CSCRY,data->matrix[0][0])|
                           CSL_FMK(PREV_CSC0_CSCGY,data->matrix[0][1])|
                           CSL_FMK(PREV_CSC0_CSCBY,data->matrix[0][2]);

	hPrev->regs->CSC1	 = CSL_FMK(PREV_CSC1_CSCRCB,data->matrix[1][0])|
                           CSL_FMK(PREV_CSC1_CSCGCB,data->matrix[1][1])|
                           CSL_FMK(PREV_CSC1_CSCBCB,data->matrix[1][2]);

	hPrev->regs->CSC2	 = CSL_FMK(PREV_CSC2_CSCRCR,data->matrix[2][0])|
                           CSL_FMK(PREV_CSC2_CSCGCR,data->matrix[2][1])|
                           CSL_FMK(PREV_CSC2_CSCBCR,data->matrix[2][2]);                           

	hPrev->regs->CSC_OFFSET  = CSL_FMK(PREV_CSC_OFFSET_YOFST,data->offset[0])|
                               CSL_FMK(PREV_CSC_OFFSET_OFSTCB,data->offset[1])|
                               CSL_FMK(PREV_CSC_OFFSET_OFSTCR,data->offset[2]);
                             
    return (CSL_SOK);
}