Struct opengles_graphics::Texture

pub struct Texture { /* fields omitted */ }

Wraps OpenGL texture data. The texture gets deleted when running out of scope.

In order to create a texture the function GenTextures must be loaded. This is done automatically by the window back-ends in Piston.

Methods

impl Texture

fn new(id: GLuint, width: u32, height: u32) -> Self

Creates a new texture.

fn get_id(&self) -> GLuint

Gets the OpenGL id of the texture.

fn empty() -> Result<Self, String>

Returns empty texture.

fn from_memory_alpha(buf: &[u8],
                     width: u32,
                     height: u32,
                     settings: &TextureSettings)
                     -> Result<Self, String>

Loads image from memory, the format is 8-bit greyscale.

fn from_path<P>(path: P) -> Result<Self, String> where P: AsRef<Path>

Loads image by relative file name to the asset root.

fn from_image(img: &RgbaImage, settings: &TextureSettings) -> Self

Creates a texture from image.

fn update(&mut self, img: &RgbaImage)

Updates image with a new one.

Trait Implementations

impl Drop for Texture

fn drop(&mut self)

A method called when the value goes out of scope.

impl ImageSize for Texture

fn get_size(&self) -> (u32, u32)

Get the image size.

fn get_width(&self) -> u32

Gets the image width.

fn get_height(&self) -> u32

Gets the image height.

impl CreateTexture<()> for Texture

type Error = String

The error when creating texture.

fn create<S: Into<[u32; 2]>>(_factory: &mut (),
                             _format: Format,
                             memory: &[u8],
                             size: S,
                             settings: &TextureSettings)
                             -> Result<Self, Self::Error>

Create texture from memory.

impl UpdateTexture<()> for Texture

type Error = String

The error when updating texture.

fn update<O: Into<[u32; 2]>, S: Into<[u32; 2]>>(&mut self,
                                                _factory: &mut (),
                                                _format: Format,
                                                memory: &[u8],
                                                offset: O,
                                                size: S)
                                                -> Result<(), Self::Error>

Update the texture.