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Diffstat (limited to 'gifed/src/block/screendescriptor.rs')
| -rw-r--r-- | gifed/src/block/screendescriptor.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gifed/src/block/screendescriptor.rs b/gifed/src/block/screendescriptor.rs index aaeea53..d44ca2f 100644 --- a/gifed/src/block/screendescriptor.rs +++ b/gifed/src/block/screendescriptor.rs @@ -43,6 +43,18 @@ impl ScreenDescriptor { crate::packed_to_color_table_length(self.packed.color_table_size()) } + /// Returns the background color index. Defaults to zero. + pub fn background_color(&self) -> u8 { + self.background_color_index + } + + /// Set the color used to fill the space in the gif's canvas that no image + /// has occupied yet. If there is no palette associated with this + /// Screen Descriptor, this value should be ignored by the decoder. + pub fn set_background_color(&mut self, index: u8) { + self.background_color_index = index; + } + pub fn as_bytes(&self) -> Vec<u8> { let mut vec = vec![]; vec.extend_from_slice(&self.width.to_le_bytes()); |