com.io7m.jcanephora.texture_loader.core

Interface JCGLTLTextureDataType

public interface JCGLTLTextureDataType

The type of loaded texture data.

Instances of this type present the illusion that all images are RGBA images with unsigned normalized double precision floating point values. Greyscale images are presented as grey RGB values with a fully opaque alpha channel. Greyscale-with-alpha images are presented as grey RGB values with the original alpha value intact. RGB images are presented as RGB values with a fully opaque alpha channel. RGBA images are presented unmodified. Indexed color images are presented as RGB values with a fully opaque alpha channel.

The (0, 0) origin is considered to be the top left corner of the image, which is in contrast to OpenGL's bottom left corner.

Method Summary

Modifier and Type	Method and Description
long	getHeight()
void	getPixel(int x, int y, com.io7m.jtensors.VectorWritable4DType v) Retrieve the pixel at (x, y), writing the color data to v.
long	getWidth()
boolean	isPremultipliedAlpha()

Method Detail

isPremultipliedAlpha

boolean isPremultipliedAlpha()

Returns:

true iff the values returned are in premultiplied alpha form

getWidth

long getWidth()

Returns:

The width of the texture in pixels

getHeight

long getHeight()

Returns:

The height of the texture in pixels

getPixel

void getPixel(int x,
              int y,
              com.io7m.jtensors.VectorWritable4DType v)

Retrieve the pixel at (x, y), writing the color data to v.

Parameters:

x - The X coordinate

y - The Y coordinate

v - The output vector