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wgsl: Fixes for new validation failures

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Values of array and matrix can now only be indexed by a constant value.
Dynamic indexing requires the value to be held in memory.

See: https://github.com/gpuweb/gpuweb/issues/1782

Bug: tint:867
Change-Id: I2b9ad6e40fc8121e7aca3a71c190639b39b0b862
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/54652
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Ben Clayton <bclayton@google.com>
This commit is contained in:
Ben Clayton
2021-06-17 11:25:09 +00:00
committed by Dawn LUCI CQ
parent dcb82432fb
commit 36edf8d850
32 changed files with 103 additions and 111 deletions
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10
examples/ManualSwapChainTest.cpp
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@@ -313,13 +313,13 @@ int main(int argc, const char* argv[]) {
// The hacky pipeline to render a triangle.
utils::ComboRenderPipelineDescriptor pipelineDesc;
pipelineDesc.vertex.module = utils::CreateShaderModule(device, R"(
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([[builtin(vertex_index)]] VertexIndex : u32)
-> [[builtin(position)]] vec4<f32> {
var 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)
);
return vec4<f32>(pos[VertexIndex], 0.0, 1.0);
})");
pipelineDesc.cFragment.module = utils::CreateShaderModule(device, R"(