drivers/media/sprd_scale/common/gen_scale_coef.h

   1 /*
   2  * Copyright (C) 2012 Spreadtrum Communications Inc.
   3  *
   4  * This software is licensed under the terms of the GNU General Public
   5  * License version 2, as published by the Free Software Foundation, and
   6  * may be copied, distributed, and modified under those terms.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13 #ifndef _GEN_SCALE_COEF_H_
  14 #define _GEN_SCALE_COEF_H_
  15
  16 #include <linux/types.h>
  17
  18 #define SCALER_COEF_TAB_LEN_HOR         48
  19 #define SCALER_COEF_TAB_LEN_VER 132
  20
  21 uint8_t GenScaleCoeff(int16_t i_w,
  22                         int16_t i_h,
  23                         int16_t o_w,
  24                         int16_t o_h,
  25                         uint32_t *coeff_h_ptr,
  26                         uint32_t *coeff_v_lum_ptr,
  27                         uint32_t *coeff_v_ch_ptr,
  28                         uint8_t scaling2yuv420,
  29                         uint8_t *scaler_tap,
  30                         uint8_t *chrome_tap,
  31                         void *temp_buf_ptr,
  32                         uint32_t temp_buf_size);
  33
  34 #endif