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dawn-cmake/test/tint/access/var/vector.wgsl.expected.msl

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test: Add some basic vector / matrix access tests Change-Id: I774d7e4b6fdf9d1507bd9cbf3be00bd4113e8162 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51222 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: David Neto <dneto@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-17 22:26:57 +00:00
#include <metal_stdlib>
using namespace metal;
kernel void tint_symbol() {
float3 v = 0.0f;
writer/msl: Fix swizzling on packed vectors Metal 1.x does not support swizzling on packed_vec types. Use array-index for single element selection (permitted on LHS and RHS of assignment) Cast the packed_vec to a vec for multiple element swizzles (not permitted as the LHS of an assignment). Fixed: tint:1249 Change-Id: I70cbb0c22a935b06b3905d24484bdc2edfb95fc2 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67060 Commit-Queue: Ben Clayton <bclayton@google.com> Kokoro: Ben Clayton <bclayton@google.com> Reviewed-by: James Price <jrprice@google.com>
2021-10-20 16:12:33 +00:00
float const scalar = v[1];
tint/msl: Preserve trailing vec3 padding In order to preserve padding properly for MSL, we need to use its packed_vec type for all vec3 types in storage buffers, not just struct members. This commit includes a complete rewrite of the PackedVec3 transform to achieve this. The key details are: * An internal `__packed_vec3<>` type was added, which corresponds to a `type::Vector` with an additional flag to indicate that it will be emitted as packed vector. * The `PackedVec3` transform replaces all vec3 types used in host-shareable address spaces with the internal `__packed_vec3` type. This includes vec3 types that appear as the store type of a pointer. * When used as an array element, these `__packed_vec3` types are wrapped in a struct that contains a single `__packed_vec3` member. This allows us to add an `@align()` attribute that ensures that `array<vec3<T>>` still has the correct array element stride. * When the `vec3<T>` appears as a struct member in the input program, we apply the `@align()` to that member to ensure that we do not change its offset. * Matrix types with three rows that are used in memory are replaced with an array of columns, where each column uses a `__packed_vec3` inside an aligned wrapper structure as above. * Accesses to host-shareable memory that involve any of these types invoke a "pack" or "unpack" helper function to convert them to the equivalent type that uses `__packed_vec3` or a regular `vec3` as required. * The `chromium_internal_relaxed_uniform_layout` extension is used to avoid issues where modifying a type in the uniform address space triggers stricter layout validation rules. Bug: tint:1571 Fixed: tint:1837 Change-Id: Idaf2da2f5bcb2be00c85ec657edfb614186476bb Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/121200 Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
2023-02-27 20:21:03 +00:00
float2 const swizzle2 = v.xz;
float3 const swizzle3 = v.xzy;
test: Add some basic vector / matrix access tests Change-Id: I774d7e4b6fdf9d1507bd9cbf3be00bd4113e8162 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51222 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: David Neto <dneto@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-17 22:26:57 +00:00
return;
}