Struct opengl_graphics::Texture

pub struct Texture { /* private fields */ }

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.

Implementations

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_bytes( bytes: &[u8], settings: &TextureSettings ) -> Result<Self, String>

Load image from bytes.

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.