Struct Texture 

#[repr(C)]
pub struct Texture {
    pub gl_context: GlContextPtr,
    pub texture_id: GLuint,
    pub refcount: *const AtomicUsize,
    pub size: PhysicalSizeU32,
    pub format: RawImageFormat,
    pub background_color: ColorU,
    pub flags: TextureFlags,
    pub run_destructor: bool,
}

OpenGL texture, use ReadOnlyWindow::create_texture to create a texture

Fields

gl_context: GlContextPtr

A reference-counted pointer to the OpenGL context (so that the texture can be deleted in the destructor)

texture_id: GLuint

Raw OpenGL texture ID

refcount: *const AtomicUsize

Reference count, shared across

size: PhysicalSizeU32

Size of this texture (in pixels)

format: RawImageFormat

Format of the texture (rgba8, brga8, etc.)

background_color: ColorU

Background color of this texture

flags: TextureFlags

Hints and flags for optimization purposes

run_destructor: bool

Implementations

impl Texture

pub fn create( texture_id: GLuint, flags: TextureFlags, size: PhysicalSizeU32, background_color: ColorU, gl_context: GlContextPtr, format: RawImageFormat, ) -> Self

pub fn allocate_rgba8( gl_context: GlContextPtr, size: PhysicalSizeU32, background: ColorU, ) -> Self

pub fn clear(&mut self)

Panics

Panics if no framebuffer/depthbuffer was allocated (the GL object lists are empty).

pub fn get_descriptor(&self) -> ImageDescriptor

pub fn draw_tesselated_svg_gpu_node( &mut self, node: &TessellatedGPUSvgNode, size: PhysicalSizeU32, color: ColorU, transforms: StyleTransformVec, ) -> bool

Draws a TessellatedGPUSvgNode with the given color to the texture

pub fn draw_tesselated_colored_svg_gpu_node( &mut self, node: &TessellatedColoredGPUSvgNode, size: PhysicalSizeU32, transforms: StyleTransformVec, ) -> bool

Draws a TessellatedColoredGPUSvgNode to the texture

impl Texture

pub fn paint_dot(&mut self, cx: f32, cy: f32, brush: Brush)

GPU painting: stamp one soft-brush dab centered at (cx, cy) in texture pixel coordinates (origin top-left, matching RawImage::paint_dot). No-op if the GL context is unusable – the caller should then use the CPU RawImage path (GlContextPtr::is_gl_usable).

pub fn paint_stroke(&mut self, x0: f32, y0: f32, x1: f32, y1: f32, brush: Brush)

GPU painting: stamp dabs along (x0,y0)->(x1,y1) into this texture via an FBO + the soft-brush shader, alpha-over blended. Same spacing + falloff as the CPU RawImage::paint_stroke. No-op if GL is unusable.

pub fn copy_to_raw_image(&self) -> RawImage

Read this texture’s pixels back into an RGBA8 RawImage (top-left origin) – for exporting the painted canvas to disk. Binds an FBO + glReadPixels.

Trait Implementations

impl Clone for Texture

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Texture

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Texture

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for Texture

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Eq for Texture

impl Hash for Texture

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Texture

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Texture

fn eq(&self, other: &Texture) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for Texture

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.