tornavis/source/blender/blenlib/BLI_math_interp.h

82 lines
3.0 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2012 Blender Foundation. All rights reserved. */
#pragma once
/** \file
* \ingroup bli
*/
#ifdef __cplusplus
extern "C" {
#endif
void BLI_bicubic_interpolation_fl(
const float *buffer, float *output, int width, int height, int components, float u, float v);
void BLI_bicubic_interpolation_char(const unsigned char *buffer,
unsigned char *output,
int width,
int height,
int components,
float u,
float v);
void BLI_bilinear_interpolation_fl(
const float *buffer, float *output, int width, int height, int components, float u, float v);
void BLI_bilinear_interpolation_char(const unsigned char *buffer,
unsigned char *output,
int width,
int height,
int components,
float u,
float v);
void BLI_bilinear_interpolation_wrap_fl(const float *buffer,
float *output,
int width,
int height,
int components,
float u,
float v,
bool wrap_x,
bool wrap_y);
void BLI_bilinear_interpolation_wrap_char(const unsigned char *buffer,
unsigned char *output,
int width,
int height,
int components,
float u,
float v,
bool wrap_x,
bool wrap_y);
#define EWA_MAXIDX 255
extern const float EWA_WTS[EWA_MAXIDX + 1];
typedef void (*ewa_filter_read_pixel_cb)(void *userdata, int x, int y, float result[4]);
void BLI_ewa_imp2radangle(
float A, float B, float C, float F, float *a, float *b, float *th, float *ecc);
/**
* TODO(sergey): Consider making this function inlined, so the pixel read callback
* could also be inlined in order to avoid per-pixel function calls.
*/
void BLI_ewa_filter(int width,
int height,
bool intpol,
bool use_alpha,
const float uv[2],
const float du[2],
const float dv[2],
ewa_filter_read_pixel_cb read_pixel_cb,
void *userdata,
float result[4]);
#ifdef __cplusplus
}
#endif