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Added conditional configurations for WASM target for gradients & storage buffers, since storage buffers are not supported on wgpu WASM target at the moment.

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bungoboingo 2022-11-10 14:43:38 -08:00
parent 23299a555f
commit 365f37a3ae
5 changed files with 27 additions and 3 deletions
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15
wgpu/src/triangle.rs
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@ -1,4 +1,5 @@
//! Draw meshes of triangles.
#[cfg(not(target_arch = "wasm32"))]
mod gradient;
mod msaa;
mod solid;
@ -27,6 +28,8 @@ pub(crate) struct Pipeline {
/// Supported triangle pipelines for different fills.
pub(crate) struct PipelineList {
solid: solid::Pipeline,
/// Gradients are currently not supported on WASM targets due to their need of storage buffers.
#[cfg(not(target_arch = "wasm32"))]
gradient: gradient::Pipeline,
}
@ -40,8 +43,11 @@ impl PipelineList {
/// Resets each pipeline's buffers.
fn clear(&mut self) {
self.solid.buffer.clear();
self.gradient.uniform_buffer.clear();
self.gradient.storage_buffer.clear();
#[cfg(not(target_arch = "wasm32"))]
{
self.gradient.uniform_buffer.clear();
self.gradient.storage_buffer.clear();
}
}
/// Writes the contents of each pipeline's CPU buffer to the GPU, resizing the GPU buffer
@ -53,6 +59,7 @@ impl PipelineList {
encoder: &mut wgpu::CommandEncoder,
) {
self.solid.write(device, staging_belt, encoder);
#[cfg(not(target_arch = "wasm32"))]
self.gradient.write(device, staging_belt, encoder);
}
}
@ -79,6 +86,7 @@ impl Pipeline {
index_strides: Vec::new(),
pipelines: PipelineList {
solid: solid::Pipeline::new(device, format, antialiasing),
#[cfg(not(target_arch = "wasm32"))]
gradient: gradient::Pipeline::new(device, format, antialiasing),
},
}
@ -145,6 +153,7 @@ impl Pipeline {
triangle::Style::Solid(color) => {
self.pipelines.solid.push(transform, color);
}
#[cfg(not(target_arch = "wasm32"))]
triangle::Style::Gradient(gradient) => {
self.pipelines.gradient.push(transform, gradient);
}
@ -186,6 +195,7 @@ impl Pipeline {
});
let mut num_solids = 0;
#[cfg(not(target_arch = "wasm32"))]
let mut num_gradients = 0;
let mut last_is_solid = None;
@ -216,6 +226,7 @@ impl Pipeline {
num_solids += 1;
}
#[cfg(not(target_arch = "wasm32"))]
triangle::Style::Gradient(_) => {
if last_is_solid.unwrap_or(true) {
self.pipelines