#include "BLI_math_base.h"
#include "BLI_math_base.hh"
#include "BLI_math_vector_types.hh"

Namespaces
namespace	blender

namespace	blender::math

Macros
#define	EWA_MAXIDX 255

Typedefs
using	ewa_filter_read_pixel_cb = void ()(void userdata, int x, int y, float result[4])

Functions
void	blender::math::interpolate_nearest_border_byte (const uchar buffer, uchar output, int width, int height, float u, float v)

uchar4	blender::math::interpolate_nearest_border_byte (const uchar *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_nearest_border_fl (const float buffer, float output, int width, int height, int components, float u, float v)

float4	blender::math::interpolate_nearest_border_fl (const float *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_nearest_byte (const uchar buffer, uchar output, int width, int height, float u, float v)

uchar4	blender::math::interpolate_nearest_byte (const uchar *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_nearest_fl (const float buffer, float output, int width, int height, int components, float u, float v)

float4	blender::math::interpolate_nearest_fl (const float *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_nearest_wrap_byte (const uchar buffer, uchar output, int width, int height, float u, float v)

uchar4	blender::math::interpolate_nearest_wrap_byte (const uchar *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_nearest_wrap_fl (const float buffer, float output, int width, int height, int components, float u, float v)

float4	blender::math::interpolate_nearest_wrap_fl (const float *buffer, int width, int height, float u, float v)

uchar4	blender::math::interpolate_bilinear_border_byte (const uchar *buffer, int width, int height, float u, float v)

float4	blender::math::interpolate_bilinear_border_fl (const float *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_bilinear_border_fl (const float buffer, float output, int width, int height, int components, float u, float v)

uchar4	blender::math::interpolate_bilinear_byte (const uchar *buffer, int width, int height, float u, float v)

float4	blender::math::interpolate_bilinear_fl (const float *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_bilinear_fl (const float buffer, float output, int width, int height, int components, float u, float v)

uchar4	blender::math::interpolate_bilinear_wrap_byte (const uchar *buffer, int width, int height, float u, float v)

float4	blender::math::interpolate_bilinear_wrap_fl (const float *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_bilinear_wrap_fl (const float buffer, float output, int width, int height, int components, float u, float v, bool wrap_x, bool wrap_y)

uchar4	blender::math::interpolate_cubic_bspline_byte (const uchar *buffer, int width, int height, float u, float v)

float4	blender::math::interpolate_cubic_bspline_fl (const float *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_cubic_bspline_fl (const float buffer, float output, int width, int height, int components, float u, float v)

uchar4	blender::math::interpolate_cubic_mitchell_byte (const uchar *buffer, int width, int height, float u, float v)

float4	blender::math::interpolate_cubic_mitchell_fl (const float *buffer, int width, int height, float u, float v)

void	blender::math::interpolate_cubic_mitchell_fl (const float buffer, float output, int width, int height, int components, float u, float v)

void	BLI_ewa_imp2radangle (float A, float B, float C, float F, float a, float b, float th, float ecc)

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])

Variables
const float	EWA_WTS [EWA_MAXIDX+1]

Detailed Description

2D image sampling with filtering functions.

All functions take (u, v) texture coordinate, non-normalized (i.e. ranging from (0,0) to (width,height) over the image).

Any filtering done on texel values just blends them without color space or gamma conversions.

Definition in file BLI_math_interp.hh.

Macro Definition Documentation

◆ EWA_MAXIDX

#define EWA_MAXIDX 255

Definition at line 304 of file BLI_math_interp.hh.

Referenced by feline_eval().

Typedef Documentation

◆ ewa_filter_read_pixel_cb

using ewa_filter_read_pixel_cb = void (*)(void *userdata, int x, int y, float result[4])

Definition at line 307 of file BLI_math_interp.hh.

Function Documentation

◆ BLI_ewa_filter()

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] )

TODO(sergey): Consider making this function inlined, so the pixel read callback could also be inlined in order to avoid per-pixel function calls.

Definition at line 710 of file math_interp.cc.

References A, B, b, BLI_ewa_imp2radangle(), C, ceilf, EWA_MAXIDX, EWA_WTS, float, floorf, int, madd_v3_v3fl(), mul_v3_fl(), radangle2imp(), sqrtf, U, UNUSED_VARS, V, v, v2, and zero_v4().

Referenced by ewa_eval(), and blender::compositor::MemoryBuffer::read_elem_filtered().

◆ BLI_ewa_imp2radangle()

void BLI_ewa_imp2radangle	(	float	A,
		float	B,
		float	C,
		float	F,
		float *	a,
		float *	b,
		float *	th,
		float *	ecc )

Definition at line 680 of file math_interp.cc.

References atan2f, B, b, C, float, M_PI, and sqrtf.

Referenced by BLI_ewa_filter(), and imagewraposa_aniso().

Variable Documentation

◆ EWA_WTS

const float EWA_WTS[EWA_MAXIDX+1]

extern

Definition at line 629 of file math_interp.cc.

Referenced by BLI_ewa_filter(), and feline_eval().

Namespaces

Macros

Typedefs

Functions

Variables