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|
mod freeform;
mod geometry;
mod paint;
mod shapes;
mod split;
mod text_mask;
pub use freeform::build_freeform_path;
use scene::Mask;
use tiny_skia::Pixmap;
#[derive(Debug, thiserror::Error)]
pub enum MaskRenderError {
#[error("invalid pixmap size {width}x{height}")]
InvalidSize { width: u32, height: u32 },
#[error("invalid stroke color: {0}")]
InvalidStrokeColor(String),
}
fn new_pixmap(width: u32, height: u32) -> Result<Pixmap, MaskRenderError> {
Pixmap::new(width, height).ok_or(MaskRenderError::InvalidSize { width, height })
}
pub fn is_active(mask: &Mask) -> bool {
match mask {
Mask::Text { params, .. } => !params.content.trim().is_empty(),
Mask::Freeform { params, .. } => params.closed,
_ => true,
}
}
pub fn feather_for_gpu(mask: &Mask) -> f32 {
match mask {
Mask::Split { .. } => 0.0,
Mask::CinematicBars { params, .. }
| Mask::Rectangle { params, .. }
| Mask::Ellipse { params, .. }
| Mask::Heart { params, .. }
| Mask::Diamond { params, .. }
| Mask::Star { params, .. } => params.feather as f32,
Mask::Text { params, .. } => params.feather as f32,
Mask::Freeform { params, .. } => params.feather as f32,
}
}
pub fn render_mask_body(
mask: &Mask,
width: u32,
height: u32,
) -> Result<Pixmap, MaskRenderError> {
let mut pixmap = new_pixmap(width, height)?;
let w = width as f64;
let h = height as f64;
match mask {
Mask::Split { params, .. } => {
if params.feather == 0.0 {
paint::fill_white(&split::split_opaque_body_path(params, w, h), &mut pixmap);
} else {
split::fill_split_feather_body(params, w, h, &mut pixmap);
}
}
Mask::CinematicBars { params, .. } => {
paint::fill_white(&shapes::cinematic_bars_body_path(params, w, h), &mut pixmap);
}
Mask::Rectangle { params, .. } => {
paint::fill_white(&shapes::rectangle_body_path(params, w, h), &mut pixmap);
}
Mask::Ellipse { params, .. } => {
paint::fill_white(&shapes::ellipse_body_path(params, w, h), &mut pixmap);
}
Mask::Heart { params, .. } => {
paint::fill_white(&shapes::heart_body_path(params, w, h), &mut pixmap);
}
Mask::Diamond { params, .. } => {
paint::fill_white(&shapes::diamond_body_path(params, w, h), &mut pixmap);
}
Mask::Star { params, .. } => {
paint::fill_white(&shapes::star_body_path(params, w, h), &mut pixmap);
}
Mask::Text { params, .. } => {
text_mask::render_body(params, w, h, &mut pixmap);
}
Mask::Freeform { params, .. } => {
if params.closed {
let path = build_freeform_path(
¶ms.path,
params.center_x,
params.center_y,
params.rotation,
params.scale,
w,
h,
true,
);
paint::fill_white(&path, &mut pixmap);
}
}
}
Ok(pixmap)
}
pub fn render_mask_stroke(
mask: &Mask,
width: u32,
height: u32,
) -> Result<Option<Pixmap>, MaskRenderError> {
let (stroke_width, stroke_color) = match mask {
Mask::Split { params, .. } => (params.stroke_width, ¶ms.stroke_color),
Mask::CinematicBars { params, .. }
| Mask::Rectangle { params, .. }
| Mask::Ellipse { params, .. }
| Mask::Heart { params, .. }
| Mask::Diamond { params, .. }
| Mask::Star { params, .. } => (params.stroke_width, ¶ms.stroke_color),
Mask::Text { params, .. } => (params.stroke_width, ¶ms.stroke_color),
Mask::Freeform { params, .. } => (params.stroke_width, ¶ms.stroke_color),
};
if stroke_width <= 0.0 {
return Ok(None);
}
let mut pixmap = new_pixmap(width, height)?;
let w = width as f64;
let h = height as f64;
match mask {
Mask::Split { params, .. } => {
let color = paint::parse_stroke_color(stroke_color)?;
paint::stroke_path_with(
&split::split_stroke_path(params, w, h),
&paint::canvas_stroke(stroke_width),
color,
&mut pixmap,
);
}
Mask::CinematicBars { .. }
| Mask::Rectangle { .. }
| Mask::Ellipse { .. }
| Mask::Heart { .. }
| Mask::Diamond { .. }
| Mask::Star { .. } => {
let path = match mask {
Mask::CinematicBars { params, .. } => {
shapes::cinematic_bars_stroke_path(params, w, h)
}
Mask::Rectangle { params, .. } => shapes::rectangle_stroke_path(params, w, h),
Mask::Ellipse { params, .. } => shapes::ellipse_stroke_path(params, w, h),
Mask::Heart { params, .. } => shapes::heart_stroke_path(params, w, h),
Mask::Diamond { params, .. } => shapes::diamond_stroke_path(params, w, h),
Mask::Star { params, .. } => shapes::star_stroke_path(params, w, h),
_ => unreachable!(),
};
let color = paint::parse_stroke_color(stroke_color)?;
paint::stroke_path_with(
&path,
&paint::canvas_stroke(stroke_width),
color,
&mut pixmap,
);
}
Mask::Text { params, .. } => {
text_mask::render_stroke(params, w, h, &mut pixmap)?;
}
Mask::Freeform { params, .. } => {
if params.closed {
let path = build_freeform_path(
¶ms.path,
params.center_x,
params.center_y,
params.rotation,
params.scale,
w,
h,
true,
);
let color = paint::parse_stroke_color(stroke_color)?;
paint::stroke_path_with(
&path,
&paint::round_stroke(stroke_width),
color,
&mut pixmap,
);
if params.stroke_align != scene::StrokeAlign::Center {
let mut fill = new_pixmap(width, height)?;
paint::fill_white(&path, &mut fill);
paint::apply_stroke_align(&mut pixmap, &fill, params.stroke_align);
}
}
}
}
Ok(Some(pixmap))
}
|
