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Update examples for recent WGSL changes

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* Use new entry point IO syntax
* Use `let` instead of `const`
* Remove `-> void` from function headers

Bug: dawn:755
Change-Id: I39b5687a342ea2298c3d2e85517c9b8d9017727e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/47500
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
This commit is contained in:
James Price
2021-04-13 14:52:44 +00:00
committed by Commit Bot service account
parent f3fe648675
commit 9e0debd91e
6 changed files with 64 additions and 81 deletions
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16
examples/ManualSwapChainTest.cpp
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@@ -313,22 +313,18 @@ int main(int argc, const char* argv[]) {
// The hacky pipeline to render a triangle.
utils::ComboRenderPipelineDescriptor2 pipelineDesc;
pipelineDesc.vertex.module = utils::CreateShaderModule(device, R"(
[[builtin(vertex_index)]] var<in> VertexIndex : u32;
[[builtin(position)]] var<out> Position : vec4<f32>;
const pos : array<vec2<f32>, 3> = array<vec2<f32>, 3>(
let pos : array<vec2<f32>, 3> = array<vec2<f32>, 3>(
vec2<f32>( 0.0, 0.5),
vec2<f32>(-0.5, -0.5),
vec2<f32>( 0.5, -0.5)
);
[[stage(vertex)]] fn main() {
Position = vec4<f32>(pos[VertexIndex], 0.0, 1.0);
return;
[[stage(vertex)]] fn main([[builtin(vertex_index)]] VertexIndex : u32)
-> [[builtin(position)]] vec4<f32> {
return vec4<f32>(pos[VertexIndex], 0.0, 1.0);
})");
pipelineDesc.cFragment.module = utils::CreateShaderModule(device, R"(
[[location(0)]] var<out> fragColor : vec4<f32>;
[[stage(fragment)]] fn main() {
fragColor = vec4<f32>(1.0, 0.0, 0.0, 1.0);
return;
[[stage(fragment)]] fn main() -> [[location(0)]] vec4<f32> {
return vec4<f32>(1.0, 0.0, 0.0, 1.0);
})");
// BGRA shouldn't be hardcoded. Consider having a map[format -> pipeline].
pipelineDesc.cTargets[0].format = wgpu::TextureFormat::BGRA8Unorm;