cxd56_imageproc.h

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/****************************************************************************
 * boards/arm/cxd56xx/spresense/include/cxd56_imageproc.h
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The
 * ASF licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 ****************************************************************************/
 
/****************************************************************************
 * Included Files
 ****************************************************************************/
#ifndef __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_IMAGEPROC_H
#define __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_IMAGEPROC_H
 
#include <stdint.h>
 
#ifdef __cplusplus
extern "C"
{
#endif
 
/****************************************************************************
 * Public Types
 ****************************************************************************/
 
struct imageproc_rect_s
{
  uint16_t x1;               
  uint16_t y1;               
  uint16_t x2;               
  uint16_t y2;               
};
typedef struct imageproc_rect_s imageproc_rect_t;
 
enum imageproc_imginfo_e
{
  IMAGEPROC_IMGTYPE_SINGLE = 0, 
  IMAGEPROC_IMGTYPE_1BPP   = 1, 
  IMAGEPROC_IMGTYPE_BINARY = 1, 
  IMAGEPROC_IMGTYPE_8BPP   = 2, 
  IMAGEPROC_IMGTYPE_16BPP  = 3, 
};
 
struct imageproc_binary_img_s
{
  uint8_t *p_u8;      
  uint8_t multiplier; 
};
typedef struct imageproc_binary_img_s imageproc_binary_img_t;
 
struct imageproc_imginfo_s
{
  enum imageproc_imginfo_e type;     
  int  w;                            
  int  h;                            
  imageproc_rect_t *rect;            
  union
  {
    uint8_t                single; 
    imageproc_binary_img_t binary; 
    uint8_t                *p_u8;  
  } img;
};
typedef struct imageproc_imginfo_s imageproc_imginfo_t;
 
/****************************************************************************
 * Public Functions Prototypes
 ****************************************************************************/
 
void imageproc_initialize(void);
 
void imageproc_finalize(void);
 
int imageproc_convert_yuv2rgb(uint8_t *ibuf, uint32_t hsize,
                              uint32_t vsize);
 
int imageproc_convert_rgb2yuv(uint8_t *ibuf, uint32_t hsize,
                              uint32_t vsize);
 
void imageproc_convert_yuv2gray(uint8_t *ibuf, uint8_t *obuf,
                                size_t hsize, size_t vsize);
 
int imageproc_resize(uint8_t *ibuf, uint16_t ihsize, uint16_t ivsize,
                     uint8_t *obuf, uint16_t ohsize, uint16_t ovsize,
                     int bpp);
 
int imageproc_clip_and_resize(uint8_t *ibuf, uint16_t ihsize,
                              uint16_t ivsize, uint8_t *obuf,
                              uint16_t ohsize, uint16_t ovsize, int bpp,
                              imageproc_rect_t *clip_rect);
 
int imageproc_alpha_blend(imageproc_imginfo_t *dst, int pos_x, int pos_y,
                          imageproc_imginfo_t *src,
                          imageproc_imginfo_t *alpha);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_IMAGEPROC_H */