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/*
* Copyright (C) 2012 Spreadtrum Communications Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef SCALER_COEF_CAL_
#define SCALER_COEF_CAL_
//#include "sci_types.h"
#include <linux/types.h>
#include "gsp_config_if.h"
#ifndef COUNT
#define COUNT 256
#endif
#define GSP_COEFF_BUF_SIZE (8 << 10)
#define GSP_COEFF_COEF_SIZE (1 << 10)
#define GSP_COEFF_POOL_SIZE (6 << 10)
/**---------------------------------------------------------------------------*
** Public Functions *
**---------------------------------------------------------------------------*/
/****************************************************************************/
/* Purpose: generate scale factor */
/* Author: */
/* Input: */
/* i_w: source image width */
/* i_h: source image height */
/* o_w: target image width */
/* o_h: target image height */
/* Output: */
/* coeff_h_ptr: pointer of horizontal coefficient buffer, the size of which must be at */
/* least SCALER_COEF_TAP_NUM_HOR * 4 bytes */
/* the output coefficient will be located in coeff_h_ptr[0], ......, */
/* coeff_h_ptr[SCALER_COEF_TAP_NUM_HOR-1] */
/* coeff_v_ptr: pointer of vertical coefficient buffer, the size of which must be at */
/* least (SCALER_COEF_TAP_NUM_VER + 1) * 4 bytes */
/* the output coefficient will be located in coeff_v_ptr[0], ......, */
/* coeff_h_ptr[SCALER_COEF_TAP_NUM_VER-1] and the tap number */
/* will be located in coeff_h_ptr[SCALER_COEF_TAP_NUM_VER] */
/* temp_buf_ptr: temp buffer used while generate the coefficient */
/* temp_buf_ptr: temp buffer size, 6k is the suggest size */
/* Return: */
/* Note: */
/****************************************************************************/
uint8_t GSP_Gen_Block_Ccaler_Coef(uint32_t i_w,
uint32_t i_h,
uint32_t o_w,
uint32_t o_h,
uint32_t hor_tap,
uint32_t ver_tap,
uint32_t *coeff_h_ptr,
uint32_t *coeff_v_ptr,
void *temp_buf_ptr,
uint32_t temp_buf_size,
gsp_context_t *gspCtx);
void GSP_Scale_Coef_Tab_Config(uint32_t *p_h_coeff,uint32_t *p_v_coeff);
#endif
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