Struct opengl_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

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

Creates a new texture.

pub fn get_id(&self) -> GLuint

Gets the OpenGL id of the texture.

pub fn empty(settings: &TextureSettings) -> Result<Self, String>

Returns empty texture.

pub 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.

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

Loads image by relative file name to the asset root.

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

Creates a texture from image.

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

Updates image with a new one.

Trait Implementations

impl CreateTexture<()> for 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 Drop for Texture

fn drop(&mut self)

Executes the destructor for this type.

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 TextureOp<()> for Texture

type Error = String

The error when performing an operation.

impl UpdateTexture<()> for 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.