8000 feat: create blank canvas by ZimboPro · Pull Request #1189 · ggez/ggez · GitHub
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feat: create blank canvas #1189

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Merged
merged 3 commits into from
May 22, 2023
Merged

feat: create blank canvas #1189

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8c1085a
#1156 create blank canvas
LeslieBBD May 2, 2023
fc7a5a4
Update src/graphics/image.rs
ZimboPro May 18, 2023
274c7cb
Fix linting issue
ZimboPro May 19, 2023
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25 changes: 25 additions & 0 deletions src/graphics/image.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,31 @@ impl Image {
)
}

/// A little helper function that creates a blank [`Image`] that is of the given width and height and optional color.
///
/// The default color is [`Color::WHITE`].
/// Mainly useful for debugging.
pub fn new_blank_canvas_image(
gfx: &impl Has<GraphicsContext>,
width: u32,
height: u32,
color: Option<Color>,
) -> Self {
let pixels = (0..(width * height))
.flat_map(|_| {
let (r, g, b, a) = color.unwrap_or(Color::WHITE).to_rgba();
[r, g, b, a]
})
.collect::<Vec<_>>();
Self::from_pixels(
gfx,
&pixels,
wgpu::TextureFormat::Rgba8UnormSrgb,
width,
height,
)
}

/// Creates a new image initialized with given pixel data.
pub fn from_pixels(
gfx: &impl Has<GraphicsContext>,
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