Single byte bitmap bilinear interpolation. More...

#include <interpolation.h>

Inheritance diagram for Beatmup::SingleByteBilinearInterpolator:

Public Member Functions
	SingleByteBilinearInterpolator (const AbstractBitmap &bitmap, int x=0, int y=0)

pixint1	operator() () const

pixint1	operator() (float x, float y) const

Public Member Functions inherited from Beatmup::SingleByteBitmapReader
pixint1	operator() () const
	Returns value at current position. More...

pixint1	operator() (int x, int y) const
	Returns value at pixel (x,y) position. More...

const pixint1	operator[] (int i) const
	Retrieves a value at position shifted by i pixels in scanline order with respect to the current position. More...

	SingleByteBitmapReader (const AbstractBitmap &bitmap, int x=0, int y=0)

Public Member Functions inherited from Beatmup::CustomBitmapScanner< pixbyte, 1 >
bool	operator< (const CustomBitmapScanner &another) const

pixbyte *	operator* () const

void	operator++ (int)
	Move the current position ONE PIXEL forward. More...

void	operator+= (const int n)
	Move the current position N pixels forward. More...

void	goTo (int x, int y)
	Changes current position. More...

int	getWidth () const
	Returns bitmap width in pixels. More...

int	getHeight () const
	Returns bitmap height in pixels. More...

	CustomBitmapScanner (const AbstractBitmap &bitmap, int x=0, int y=0)

Additional Inherited Members
Public Types inherited from Beatmup::SingleByteBitmapReader
typedef pixint1	pixtype

Public Types inherited from Beatmup::CustomBitmapScanner< pixbyte, 1 >
typedef pixbyte	pixvaltype

Public Attributes inherited from Beatmup::SingleByteBitmapReader
const int	MAX_VALUE = 255

Public Attributes inherited from Beatmup::CustomBitmapScanner< pixbyte, 1 >
const int	NUMBER_OF_CHANNELS

Protected Member Functions inherited from Beatmup::CustomBitmapScanner< pixbyte, 1 >
pixbyte *	jump (int x, int y) const
	Retrieves pixel address at a given position;. More...

Protected Attributes inherited from Beatmup::CustomBitmapScanner< pixbyte, 1 >
pixbyte *	data
	bitmap data More...

pixbyte *	ptr
	pointer to the current pixel More...

int	width

int	height
	bitmap sizes in pixels More...

Detailed Description

Single byte bitmap bilinear interpolation.

Definition at line 49 of file interpolation.h.

Constructor & Destructor Documentation

◆ SingleByteBilinearInterpolator()

Beatmup::SingleByteBilinearInterpolator::SingleByteBilinearInterpolator	(	const AbstractBitmap &	bitmap,
		int	x = `0`,
		int	y = `0`
	)

inline

Definition at line 51 of file interpolation.h.

51 : SingleByteBitmapReader(bitmap, x, y) {}

Beatmup::SingleByteBitmapReader::SingleByteBitmapReader

SingleByteBitmapReader(const AbstractBitmap &bitmap, int x=0, int y=0)

Definition: bitmap_access.h:174

y

jobject jlong jint jint y

Definition: wrapper_core.cpp:253

x

jobject jlong jint x

Definition: wrapper_core.cpp:253

bitmap

Beatmup::InternalBitmap * bitmap

Definition: wrapper_imag.cpp:602

Member Function Documentation

◆ operator()() [1/2]

pixint1 Beatmup::SingleByteBilinearInterpolator::operator() ( ) const

inline

Definition at line 53 of file interpolation.h.

                                           {
             return SingleByteBitmapReader::operator()();
         }

◆ operator()() [2/2]

pixint1 Beatmup::SingleByteBilinearInterpolator::operator()	(	float	x,
		float	y
	)		const

inline

Definition at line 57 of file interpolation.h.

                                                           {
             int ix = (int)x, iy = (int)y;
             pixbyte* p = jump(ix, iy);
             if (ix < width-1) {
                 float fx = x - ix;
                 if (iy < height-1) {
                     float fy = y - iy;
                     return pixint1{ roundf_fast((p[0] * (1 - fx) + p[1] * fx) * (1 - fy) + (p[width] * (1 - fx) + p[width + 1] * fx) * fy) };
                 } else
                     return pixint1{ roundf_fast(p[0] * (1 - fx) + p[1] * fx) };
             }
             else
                 if (iy < height-1) {
                     float fy = y - iy;
                     return pixint1{ roundf_fast(p[0] * (1 - fy) + p[width] * fy) };
                 }
                 else
                     return pixint1{ p[0] };
         }

The documentation for this class was generated from the following file:

core/bitmap/interpolation.h

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SingleByteBilinearInterpolator()

Member Function Documentation

◆ operator()() [1/2]

◆ operator()() [2/2]