samples/risp4ml/common/constants.h

#ifndef SAMPLES_RISP4ML_COMMON_CONSTANTS_H_
#define SAMPLES_RISP4ML_COMMON_CONSTANTS_H_

#include <stdint.h>

// Input and output are expected to be 8 bits per pixel
static const uint16_t kPipeInputBpp = 8;
static const uint16_t kPipeOutputBpp = 8;

// TODO(b/149969920): modify sign,bitwidths and internal precision for risp4ml
// Assume 8.8 format
static const uint16_t kRawPipelineBpp = 16;
static const uint16_t kRawPipelineInteger = 8;
static const uint16_t kRawPipelineFraction = 8;

// max = 0xFF.FF = 65535
// represnting 255 + 255/256
static const uint16_t kRawPipelineMaxVal = 0xFFFF;
static const uint16_t kRawPipelineMinVal = 0;
// min fraction = 0x00.01 = 1/256
static const uint16_t kRawPipelineMinFraction = 1;

// BayerIndex defines the order in 2x2 normal Bayer quad.
// +---+---+
// | R | Gr|
// +---+---+
// | Gb| B |
// +---+---+
typedef enum {
  kR = 0,
  kGr = 1,
  kGb = 2,
  kB = 3,
} BayerIndex;

typedef enum {
  kRggb = 0,
  kGrbg = 1,
  kGbrg = 2,
  kBggr = 3,
} BayerPattern;

#define kNumBayerPatterns 4

// TODO(alexkaplan): Add a way to update this based on the image
// or to make sure the BayerType corresponds to the loaded image
static const BayerPattern kBayerType = kRggb;

#endif  // SAMPLES_RISP4ML_COMMON_CONSTANTS_H_