Struct azul_webrender_api::ImageDescriptor [−][src]
pub struct ImageDescriptor { pub format: ImageFormat, pub size: DeviceIntSize, pub stride: Option<i32>, pub offset: i32, pub flags: ImageDescriptorFlags, }
Expand description
Metadata (but not storage) describing an image In WebRender.
Fields
format: ImageFormat
Format of the image data.
size: DeviceIntSize
Width and length of the image data, in pixels.
stride: Option<i32>
The number of bytes from the start of one row to the next. If non-None,
compute_stride
will return this value, otherwise it returns
width * bpp
. Different source of images have different alignment
constraints for rows, so the stride isn’t always equal to width * bpp.
offset: i32
Offset in bytes of the first pixel of this image in its backing buffer. This is used for tiling, wherein WebRender extracts chunks of input images in order to cache, manipulate, and render them individually. This offset tells the texture upload machinery where to find the bytes to upload for this tile. Non-tiled images generally set this to zero.
flags: ImageDescriptorFlags
Various bool flags related to this descriptor.
Implementations
Mints a new ImageDescriptor.
Returns the stride, either via an explicit stride stashed on the object or by the default computation.
Computes the total size of the image, in bytes.
Computes the bounding rectangle for the image, rooted at (0, 0).
Returns true if this descriptor allows mipmaps
Trait Implementations
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
Auto Trait Implementations
impl RefUnwindSafe for ImageDescriptor
impl Send for ImageDescriptor
impl Sync for ImageDescriptor
impl Unpin for ImageDescriptor
impl UnwindSafe for ImageDescriptor
Blanket Implementations
Mutably borrows from an owned value. Read more