#[non_exhaustive]pub struct Info<'a> {Show 20 fields
pub width: u32,
pub height: u32,
pub bit_depth: BitDepth,
pub color_type: ColorType,
pub interlaced: bool,
pub trns: Option<Cow<'a, [u8]>>,
pub pixel_dims: Option<PixelDimensions>,
pub palette: Option<Cow<'a, [u8]>>,
pub gama_chunk: Option<ScaledFloat>,
pub chrm_chunk: Option<SourceChromaticities>,
pub frame_control: Option<FrameControl>,
pub animation_control: Option<AnimationControl>,
pub compression: Compression,
pub source_gamma: Option<ScaledFloat>,
pub source_chromaticities: Option<SourceChromaticities>,
pub srgb: Option<SrgbRenderingIntent>,
pub icc_profile: Option<Cow<'a, [u8]>>,
pub uncompressed_latin1_text: Vec<TEXtChunk>,
pub compressed_latin1_text: Vec<ZTXtChunk>,
pub utf8_text: Vec<ITXtChunk>,
}
Expand description
PNG info struct
Fields (Non-exhaustive)§
This struct is marked as non-exhaustive
Struct { .. }
syntax; cannot be matched against without a wildcard ..
; and struct update syntax will not work.width: u32
§height: u32
§bit_depth: BitDepth
§color_type: ColorType
How colors are stored in the image.
interlaced: bool
§trns: Option<Cow<'a, [u8]>>
The image’s tRNS
chunk, if present; contains the alpha channel of the image’s palette, 1 byte per entry.
pixel_dims: Option<PixelDimensions>
§palette: Option<Cow<'a, [u8]>>
The image’s PLTE
chunk, if present; contains the RGB channels (in that order) of the image’s palettes, 3 bytes per entry (1 per channel).
gama_chunk: Option<ScaledFloat>
The contents of the image’s gAMA chunk, if present.
Prefer source_gamma
to also get the derived replacement gamma from sRGB chunks.
chrm_chunk: Option<SourceChromaticities>
The contents of the image’s cHRM
chunk, if present.
Prefer source_chromaticities
to also get the derived replacements from sRGB chunks.
frame_control: Option<FrameControl>
§animation_control: Option<AnimationControl>
§compression: Compression
§source_gamma: Option<ScaledFloat>
Gamma of the source system.
Set by both gAMA
as well as to a replacement by sRGB
chunk.
source_chromaticities: Option<SourceChromaticities>
Chromaticities of the source system.
Set by both cHRM
as well as to a replacement by sRGB
chunk.
srgb: Option<SrgbRenderingIntent>
The rendering intent of an SRGB image.
Presence of this value also indicates that the image conforms to the SRGB color space.
icc_profile: Option<Cow<'a, [u8]>>
The ICC profile for the image.
uncompressed_latin1_text: Vec<TEXtChunk>
tEXt field
compressed_latin1_text: Vec<ZTXtChunk>
zTXt field
utf8_text: Vec<ITXtChunk>
iTXt field
Implementations§
source§impl Info<'_>
impl Info<'_>
sourcepub fn with_size(width: u32, height: u32) -> Self
pub fn with_size(width: u32, height: u32) -> Self
A utility constructor for a default info with width and height.
sourcepub fn is_animated(&self) -> bool
pub fn is_animated(&self) -> bool
Returns true if the image is an APNG image.
sourcepub fn animation_control(&self) -> Option<&AnimationControl>
pub fn animation_control(&self) -> Option<&AnimationControl>
Returns the frame control information of the image.
sourcepub fn frame_control(&self) -> Option<&FrameControl>
pub fn frame_control(&self) -> Option<&FrameControl>
Returns the frame control information of the current frame
sourcepub fn bits_per_pixel(&self) -> usize
pub fn bits_per_pixel(&self) -> usize
Returns the number of bits per pixel.
sourcepub fn bytes_per_pixel(&self) -> usize
pub fn bytes_per_pixel(&self) -> usize
Returns the number of bytes per pixel.
sourcepub fn raw_bytes(&self) -> usize
pub fn raw_bytes(&self) -> usize
Returns the number of bytes needed for one deinterlaced image.
sourcepub fn raw_row_length(&self) -> usize
pub fn raw_row_length(&self) -> usize
Returns the number of bytes needed for one deinterlaced row.
sourcepub fn raw_row_length_from_width(&self, width: u32) -> usize
pub fn raw_row_length_from_width(&self, width: u32) -> usize
Returns the number of bytes needed for one deinterlaced row of width width
.